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22 Commits
Author SHA1 Message Date
byuu 7dec0b2a3c Update to bsnes v014 release.
This version adds speed regulation, greatly improves PPU rendering, and increases speed by ~30% over the previous version.
Changelog:
    - Rewrote offset-per-tile mode emulation, should be correct now. Fixes Chrono Trigger, Contra III, Tetris Attack, etc.
    - Fixed a bug with HDMA occuring during interrupts. Fixes Tales of Phantasia souond test screen
    - Updated compiler to Visual Studio 2005, and enabled profile guided optimizations
    - Added conditional compilation of debugging functions (faster without them)
    - Added conditional compilation of core classes as pointers (allowing polymorphism) or objects (allowing inlining). The latter results in a speed increase
    - Small fixes to BG and OAM rendering routines
    - Corrected sprite tile bounds wrapping
    - Corrected sprite rendering in hires video modes
    - Rewrote color add/sub routines, should be correct now. Fixes Illusion of Gaia menu, etc.
    - Optimized video blitting routines, will temporarilly break mixed video mode screenshots
    - Prevented selecting menu options via return key from being recognized as keypresses by the emulator
    - Added system speed regulation (60hz/NTSC or 50hz/PAL)! Many thanks to kode54, GIGO, and Richard Bannister for their assistance
I disabled the debugger and polymorphism, and enabled profile guided optimizations for this build, to maximize speed. The debugger and polymorphism can be re-enabled via uncommenting the respective #defines in src/base.h and recompiling, or bsnes v0.013 can be used. I may start releasing two separate builds in the future... not sure yet.
2005-11-12 16:49:26 +00:00
byuu f288280ceb Update to bsnes v013r02 release.
[No changelog available]
2005-10-25 23:25:28 +00:00
byuu c6c5f4669c Update to bsnes v013 release.
- Greatly improved HDMA timing and accuracy with help from anomie and DMV27 -- fixes bugs in Energy Breaker and Street Fighter Alpha 2
    - Fixed a problem with color add/sub code -- fixes opening battle in Tales of Phantasia and clouds in Energy Breaker
    - Temporarily added DMV27's bugfix for the DSP KON register -- fixes sound in Der Langrisser, but this is not a hardware-accurate fix
    - Disabled VRAM writes outside of vblank -- fixes Hook, but breaks many PD ROMs and fan translations (Roto's BS Zelda hack, Gideon Zhi's Ys 4 translation, etc). I might add an option in the future to toggle this behavior, but for now these games will no longer work. Please keep in mind these games will not run properly on real SNES hardware, either.
    - Improved frameskipping code thanks to a suggestion from Richard Bannister
    - Misc. other code cleanups and improvements (notably in the color table generation code)
    - bsnes is now endian-safe and runs on Mac OS X
    - Added caching support for window clipping tables resulting in a slight speedup. Please let me know if you spot any errors as a result of this change.
2005-10-23 23:32:30 +00:00
byuu 397b9c4505 Update to bsnes v012 release.
Changelog:
    - Added S-DSP emulation
    - Added sound output support via DirectSound -- no sound buffering though, so sound is muted by default
    - Added option to record raw sound output to WAV files
    - Added multiple color adjustment filters to the video output
    - Added mode3/4 direct color support
    - Added mode7 direct color and mosaic support
    - Greatly improved mode7 rendering algorithm thanks to anomie
    - Fixed mode7 screen repitition and EXTBG effects
    - Greatly increased accuracy of NMI and IRQ timing, and emulated many newly discovered hardware quirks involving the two
    - A few speed improvements courtesy of Nach for profiling the code for me
I'm now looking for assistance with sound buffering. Specifically, I need help modifying the DirectSound code to allow the emulator to be ran between 50%-400% normal speed, while keeping the sound output relatively good. If you have experience with this and can help, please get in touch with me (setsunakun0 at hotmail dot com).
2005-10-02 00:38:34 +00:00
byuu 7e2cfb6d40 Update to bsnes v011 release.
- Fixed Mode 0 color palette index problem. Fixes ToP, DQ5, etc.
    - Improved LoROM memory mapper to support 32mbit images. Fixes Tokimeki Memorial, etc.
    - Added full S-DD1 support, SFA2 and Star Ocean are now playable. Special thanks to Andreas Naive
    - Updated BGnxOFS / Mode7 registers with anomie's latest findings
    - Added basic ROM mirroring support. Fixes copy protection issues in MMX, etc.
    - Rewrote string library to work better on gcc/linux
    - Cleaned up S-RTC/S-DD1 emulation to make way for future add-on chip emulation
    - Rewrote DMA code, now runs cycle-by-cycle
    - Rewrote HDMA code, now allows HDMA to be enabled mid-frame, fixes many games
    - Fixed a bug in Mode7 vertical screen flip mode. Fixes FF5 title screen, etc.
    - Greatly improved IRQ triggering. Fixes Der Langrisser, etc.
    - Added full support for open bus. This includes PPU1 and PPU2 open bus support
    - Modified CPU core back to cycle-based system. Slower, but improves debugger
    - Implemented temporary fix for debugger to handle new cycle-based cores
    - Modified CGRAM to ignore highest bit, since it is not used at all by the SNES, and is impossible to read on real hardware. Lowers memory usage by ~1.2mb
    - Added mostly accurate PAL timing support. This should increase compatibility by ~30% or so
    - More stuff I'm forgetting at the moment...
2005-08-26 20:38:00 +00:00
byuu 970dcea0ac Update to bsnes v010 release.
bsnes now supports SPC700 emulation (no DSP or sound support, however), and has greatly improved compatibility. It also now contains a keyboard-only joypad configuration tool.
2005-08-03 21:22:42 +00:00
byuu 402c146a53 Update to bsnes v009 release.
- Fixed non-interlaced display modes from not drawing every other frame
    - Changed OAM halve to skip every other scanline in 224-height modes
    - Updated renderer to properly support games that switch resolutions mid-frame
    - Fixed VRAM address remapping modes, fixes DQ3R, FF: MQ
    - Fixed a bug in main color window clipping affecting BGs
    - Added video color curve option, thanks to Overload for the idea + color table
    - Added vblank, FPS counter, and DDraw surface memory options to settings menu
    - Added fullscreen modes 640x480 and 1024x768 to video modes
    - Added option to toggle the menubar on and off by pressing the escape key
    - Mode3 was not rendering sprites
    - Priorities were wrong for modes 2-4, thanks to anomie for info
    - Fixed a serious bug in IRQ interrupts. May not be perfect, but helps many games
2005-06-26 11:07:38 +00:00
byuu a471c150c9 Update to bsnes v008 release.
moving the window + main color window clipping into the bg/oam/mode7 rendering routines themselves, I was able to greatly simplify the most complicated part of rendering: the final pass where color add/sub effects are applied. As a result, the new PPU core is not only ~35% faster (on graphics intensive screens, even faster on simpler screens), but more accurate as well. Awesome.
In celebration, I´m releasing bsnes v0.008. I can actually run all games I have at >60fps on my Athlon 1.67ghz PC. Probably not something to brag about, though ...
Oh, and I also updated the keyboard polling code to only capture keypresses if the main window has focus. I´ve been meaning to do this for the better part of a year now, but never got around to it.
If, for some reason, you still want to use the old renderer, you can uncomment the first line in src/ppu/bppu/bppu.h and recompile the emulator yourself. Or you can use v0.007a, I´ll leave it up for a bit.
2005-06-21 09:13:40 +00:00
byuu ea38ea2537 Update to bsnes v007a release.
[No changelog available]
2005-06-13 04:34:10 +00:00
byuu 09b326ae86 Update to bsnes v007 release.
I have done quite a bit, so I´ll try my best to recap most of the fixes since the last release...
    - HDMA was not running during DMA transfers
    - Emulator did not recognize any filetype other than .smc
    - Added configuration file support and imported my vector/string/config libraries into bsnes
    - Added option to use system RAM instead of video RAM for display, this can greatly increase speed on certain video cards
    - Increased speed by ~15% by adding 256x224 renderer (still very buggy when the SNES mixes video modes mid-frame)
    - mvn/mvp opcodes were not setting the DB register
    - Fixed joypad input in many games (Super Mario: All Stars, Dragon Quest III, etc.)
    - Major speedup with frakeskip option
    - Fixed default aspect ratio when emulator is first started
There´s probably a lot more, but that´s all I remember offhand... this release should be a lot closer to the quality of v0.005a, but still needs a bit more polishing.
2005-06-12 08:15:22 +00:00
byuu a60f667b25 Update to bsnes v006 release.
The rewrite is now complete. I finished adding frameskip, and fixed some crashing issues with loading multiple ROMs. I wrapped all malloc/free calls with memalloc/memfree, which are custom functions that log each call, and let you pass sprintf-style arguments to them to debug memory leaks. Don´t see any, nor have I noticed any in bsnes; but it makes a nice test tool anyway.
I found out today that the mvn/mvp instructions actually set the DB register to the destination bank. Weird. This fixed Final Fantasy V, Chrono Trigger, and Dragon Quest III (which now runs as a result) graphics. Not all of them, but quite a few. I had also previously been setting the M/X flags of the P register when xce was executed. I never anticipated a game using xce while in native mode to switch to... native mode... but apparently, Chrono Trigger does. And my code was incorrect. So now Chrono Trigger gets past the name select screen, but dies a few screens after still.
The only really major flaw I am aware of that bsnes v0.005 did not have is with the battle screens in Squaresoft games. I get horrible flickering and "crushed scanlines" every other frame on them, for some reason. I´ll try and track that down for the next release, but I didn´t want to hold up a new release any longer. As a result, I´ll leave up v0.005a for the time being until I get this problem fixed.
2005-05-13 12:03:02 +00:00
byuu 6f7cf1bd31 Update to bsnes v005a release.
[No changelog available]
2005-02-06 04:04:32 +00:00
byuu 8751bc433f Update to bsnes v005 release.
Released a new version of bsnes today. Version 0.0.005 is up on the main page now.
The changes since .004 wip10 include: DRAM timing fix (now occurs mid-opcode), memory address speed fix, added CPU cycle condition 4 to all opcodes that use it, and fixed a bug where DRAM refresh was not changing start positions every other scanline.
With the new version, Chrono Trigger should get a little further, and Final Fantasy 5 should get in-game now. The only problem FF5 seems to have is sprite corrution in the menus. I´m too busy with the CPU timing to mess around with the PPU right now, though. Also, the APU is not bridged to the CPU in this release, so compatibility is (still) really low.
After I get the APU working fairly well, I´ll (try and) start keeping a what´s new file so that people can know what all changed between public releases of the emulator without having to follow this page. Sorry for the inconvenience in the mean time.

[No archive available]
2005-02-05 00:00:00 +00:00
byuu afbee40bc0 Update to bsnes v004 release.
[No changelog available]

[No archive available]
2004-12-24 00:00:00 +00:00
byuu 81e9be64d2 Update to bsnes v003r01 release.
[No changelog available]

[No archive available]
2004-12-13 00:00:00 +00:00
byuu 0cd4972d11 Update to bsnes v002 ir11 release.
Doubled the width of sprites when the width of the screen is 512. The SNES Test Program now runs through all of the character test correctly. The windows are off-by-one though.
Added the very bizarre 00:4300-00:437f memory region that is unique from 7e:4300-7e:437f. Then I added read support from $2180. This allowed the SNES Test Program to not crash after failing the electronics test, and it also fixed the horrible graphics corruption in Der Langrisser.
The fonts were still failing, so I went in with my tracer and found out what was causing it. The following code:
	gx816->regs.pc += (signed char)(arg + 2);
This is the code used to increment the pc counter after relative branches. The problem is that I had parinthesis around the + 2 as well as arg. Therefore, if arg was 0x7e, 0x7f, 0xfe, or 0xff, it would change the sign. This would in turn make the program counter off by 256 bytes. Very bad. Fixing this fixed the font in Der Langrisser, and also fixed Super Mario World, when Yoshi spits a turtle out, the game will no longer crash.
Next, via the Der Langrisser world map, I realized that anomie´s description of the BG/mode7 register latches was reversed: the BG registers (may) share a common latch between all of them, but the mode7 registers do not. I removed the common latches from the mode7 regs, but I haven´t added the latch to the BG registers yet.
I also realized that clearing the entire screen on a BG mode change would probably not be a good thing for games that change video modes mid-frame. So I tried working on getting the weird single-frame garble that pops up every minute or so to go away, but to no avail. I´m having a difficult time tracking down the exact cause of the error, but I believe it to be a buffer overflow, or something along those lines.

[No archive available]
2004-12-11 00:00:00 +00:00
byuu 938609818f Update to bsnes v002 ir9 release.
[No changelog available]
2004-12-07 01:12:32 +00:00
byuu 487491e6f2 Update to bsnes v002 ir7 release.
The bug in the Bahamut Lagoon mode7 screens turned out to be that I never added the dividend result to $4216/$4217. It always returned the multiplication of $4202/$4203. This also fixed the sprites in battles for Dai Kaijuu Monogatari. I added a bunch of window stuff, including a double size windowed mode, and a fullscreen mode. Lots of fixes to the interface, as well as code cleanup. It's still pretty buggy, there's a lot of variables to keep up with in the GUI at present...
I also added better tile caching, I just cache all tiles when they are rendered, for all 3 color depths (4, 16, 256). Seems to help a little. A portion of the speed gain was lost by fixing the dividend result, though. Very strange, since I wouldn't think much work would go into a simple line of code that's called 20 times a frame probably at best... oh well.

[No archive available]
2004-12-05 00:00:00 +00:00
byuu a6ccc7e5d2 Update to unreleased version.
First, I fixed some issues with the mode7 / scroll regs thanks to info from anomie. Qwertie's mode7 demo runs without modification now. Next, I fixed a small glitch with tiles getting cut off on the right edge of the screen, fixes some flickering on the edges in Zelda 3. Finally, I added tile caching to all 4 BG layers. It didn't really increase speed by much (~10%), and upped the RAM requirements by 1.2mb... I left the old code in case I need to fall back on it. My only guess (hope) is that the bottleneck lies somewhere else...

[No archive available]
2004-12-04 00:00:00 +00:00
byuu 39dd39cc09 Update to unreleased version.
Had a small glitch in the OAM $2102/$2103 register settings, fixed that and now both Zelda 3 and Super Mario World always show sprites perfectly. The only error to my knowledge in the below screenshots is that the large version of the mario sprite in the third pic is not shown at the top left of the screen. Which could be because I have no mosaic support. But at any rate, both games should be completely playable now, albeit very slowly. I tried to speed up things by caching some stuff in the PPU, but I couldn't find a nice way to implement it that would result in a significant speed increase. Oh yeah, Zelda won't follow you in Zelda 3, but you can just go to the throne room and push the picture to the right yourself, and she'll appear when you reach the sanctuary.
I also updated the debugger, it uses a smaller font, which is a bit harder to read, but saves a lot of screen space. This will definately be needed when I add in more of the debugging windows in the future, so it's better to get used to it now than later.

[No archive available]
2004-11-27 00:00:00 +00:00
byuu 1a017ff697 Update to unreleased version.
Added SRAM support. It's compatible with other emulators. It maps both the LoROM SRAM between $700000-$7dffff, and HiROM SRAM between $3n6000-$3n7fff (where n = 0 - f).
Modified the screen to redraw at scanline 224, instead of 0. Fixes some flickering between screens in some games.
Moved the lighting adjustment code ($2100 bits 0-3) directly into the PPU, rather than outside in the platform-specific code. This is because games have the ability to adjust this value per scanline. Also allowed the games to control the background enable ($2100 bit 7) flag per scanline now. This allowed Bahamut Lagoon's dragon intro to work.
I then added mode2 support, so now all that's missing is modes 5 and 6 (interlaced).
I also created an easy #define to select between the public domain mode7 code I wrote, and the snes9x mode7 code. I'll go through one of these days and rewrite the snes9x code in a clean environment (e.g. without using the current mode7 file as a reference) to avoid the issue altogether, but for now... the snes9x code is twice as fast, and that's good enough for me.
Lastly, I also added in a trace checkbox to enable tracing. As such, the zip file of my work up now has debug mode enabled by default. I really need an overhaul of the gui implementation, and a configuration file. I have a very nice string library system (that I wrote myself) that I would love to take advantage of in this project.
Here's some screenshots of the dragon intro. Lots of HDMA here, showing that I pretty much have HDMA down, now. I remember zsnes used to have a problem with these screens, and had to do something with an HDMA hack to get around it. They figured out what the problem was, eventually. I was actually quite surprised my emulator does not suffer from this same problem. Lucky for me, as they never did mention what the problem was to begin with. The HDMA is technically drawing too soon (at the start of the scanline instead of the end) which probably messes things up a bit, and I'm guessing the scroll registers are screwing up in one or two of the below pics. No mosaic support either.

[No archive available]
2004-11-21 00:00:00 +00:00
byuu 591adfcb25 Update to unreleased version.
Initial release

[No archive available]
2004-10-14 00:00:00 +00:00
2322 changed files with 31195 additions and 208892 deletions

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-109
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#target := luna
target := lucia
build := performance
openmp := false
local := true
flags += -I. -I..
$(info Targeting $(target) ...)
nall.path := ../nall
include $(nall.path)/GNUmakefile
ifeq ($(platform),local)
flags += -march=native
endif
ifeq ($(platform),windows)
options += -luuid -lkernel32 -luser32 -lgdi32 -lcomctl32 -lcomdlg32 -lshell32
options += -Wl,-enable-auto-import
options += -Wl,-enable-runtime-pseudo-reloc
else ifeq ($(platform),macos)
else ifneq ($(filter $(platform),linux bsd),)
options += -Wl,-export-dynamic
options += -lX11 -lXext
else
$(error "unsupported platform")
endif
objects := libco emulator
obj/libco.o: ../libco/libco.c
obj/emulator.o: emulator/emulator.cpp
ifeq ($(target),luna)
profile := accuracy
cores := fc sfc sg ms md pce msx cv gb gba ws ngp
endif
ifeq ($(target),lucia)
profile := performance
cores := fc sfc sg ms md pce msx gb gba ws ngp
endif
ifeq ($(profile),accuracy)
flags += -DPROFILE_ACCURACY
endif
ifeq ($(profile),performance)
flags += -DPROFILE_PERFORMANCE
endif
ifneq ($(filter $(cores),fc),)
include fc/GNUmakefile
endif
ifneq ($(filter $(cores),sfc),)
include sfc/GNUmakefile
endif
ifneq ($(filter $(cores),sg),)
include sg/GNUmakefile
endif
ifneq ($(filter $(cores),ms),)
include ms/GNUmakefile
endif
ifneq ($(filter $(cores),md),)
include md/GNUmakefile
endif
ifneq ($(filter $(cores),pce),)
include pce/GNUmakefile
endif
ifneq ($(filter $(cores),msx),)
include msx/GNUmakefile
endif
ifneq ($(filter $(cores),cv),)
include cv/GNUmakefile
endif
ifneq ($(filter $(cores),gb),)
include gb/GNUmakefile
endif
ifneq ($(filter $(cores),gba),)
include gba/GNUmakefile
endif
ifneq ($(filter $(cores),ws),)
include ws/GNUmakefile
endif
ifneq ($(filter $(cores),ngp),)
include ngp/GNUmakefile
endif
include component/GNUmakefile
flags += $(foreach c,$(call strupper,$(cores)),-DCORE_$c)
ui := target-$(target)
include $(ui)/GNUmakefile
-include obj/*.d
clean:
$(call delete,obj/*)
$(call delete,out/*)
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layout
name: Japanese
//row 0
key: 0 わ を
key: 1 ! ぬ
key: 2 " ふ
key: 3 # あ ぁ
key: 4 $ う ぅ
key: 5 % え ぇ
key: 6 & お ぉ
key: 7 ’ や ゃ
//row 1
key: 8 ( ゆ ゅ
key: 9 ) よ ょ
key: - = ほ
key: ^ ~ へ
key: ¥ | ー
key: @ ‘ "
key: [ { 。
key: ; + れ
//row 2
key: : * け
key: ] } む
key: , < ね `
key: . > る 。
key: / ? め .
key: - ろ
key: A ち
key: B こ
//row 3
key: C そ
key: D し
key: E い ぃ
key: F は
key: G き
key: H く
key: I に
key: J ま
//row 4
key: K の
key: L り
key: M も
key: N み
key: O ら
key: P せ
key: Q た
key: R す
//row 5
key: S と
key: T か
key: U な
key: V ひ
key: W て
key: X さ
key: Y ん
key: Z つ っ
//row 6
key: SHIFT
key: CTRL
key: GRAPH
key: CAPS
key: かな
key: F1 F6
key: F2 F7
key: F3 F8
//row 7
key: F4 F9
key: F5 F10
key: ESC
key: TAB
key: STOP
key: BS
key: SELECT
key: RETURN
//row 8
key: SPACE
key: CLS/HOME
key: INS
key: DEL
key: ←
key: ↑
key: ↓
key: →
//row 9
key: *
key: +
key: /
key: 0
key: 1
key: 2
key: 3
key: 4
//row 10
key: 5
key: 6
key: 7
key: 8
key: 9
key: -
key: ,
key: .
//row 11
key:
key: 実行
key:
key: 取消
key:
key:
key:
key:
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layout
name: Japanese
//row 0
key: 0 わ を
key: 1 ! ぬ
key: 2 " ふ
key: 3 # あ ぁ
key: 4 $ う ぅ
key: 5 % え ぇ
key: 6 & お ぉ
key: 7 ’ や ゃ
//row 1
key: 8 ( ゆ ゅ
key: 9 ) よ ょ
key: - = ほ
key: ^ ~ へ
key: ¥ | ー
key: @ ‘ "
key: [ { 。
key: ; + れ
//row 2
key: : * け
key: ] } む
key: , < ね `
key: . > る 。
key: / ? め .
key: - ろ
key: A ち
key: B こ
//row 3
key: C そ
key: D し
key: E い ぃ
key: F は
key: G き
key: H く
key: I に
key: J ま
//row 4
key: K の
key: L り
key: M も
key: N み
key: O ら
key: P せ
key: Q た
key: R す
//row 5
key: S と
key: T か
key: U な
key: V ひ
key: W て
key: X さ
key: Y ん
key: Z つ っ
//row 6
key: SHIFT
key: CTRL
key: GRAPH
key: CAPS
key: かな
key: F1 F6
key: F2 F7
key: F3 F8
//row 7
key: F4 F9
key: F5 F10
key: ESC
key: TAB
key: STOP
key: BS
key: SELECT
key: RETURN
//row 8
key: SPACE
key: CLS/HOME
key: INS
key: DEL
key: ←
key: ↑
key: ↓
key: →
//row 9
key: *
key: +
key: /
key: 0
key: 1
key: 2
key: 3
key: 4
//row 10
key: 5
key: 6
key: 7
key: 8
key: 9
key: -
key: ,
key: .
//row 11
key:
key: 実行
key:
key: 取消
key:
key:
key:
key:
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-962
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@@ -1,962 +0,0 @@
database
revision: 2020-01-21
//Boards (Production)
database
revision: 2020-01-21
board: BANDAI-PT-923
memory type=ROM content=Program
map address=00-1f,80-9f:8000-ffff mask=0x8000
slot type=SufamiTurbo
rom
map address=20-3f,a0-bf:8000-ffff mask=0x8000
ram
map address=60-6f,e0-ef:0000-ffff
slot type=SufamiTurbo
rom
map address=40-5f,c0-df:0000-ffff mask=0x8000
ram
map address=70-7d,f0-ff:0000-ffff
board: BSC-1A5B9P-01
memory type=RAM content=Save
map address=10-17:5000-5fff mask=0xf000
processor identifier=MCC
map address=00-0f:5000-5fff
mcu
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
map address=20-3f,a0-bf:6000-7fff
memory type=ROM content=Program
memory type=RAM content=Download
slot type=BSMemory
board: BSC-1A5M-02
memory type=ROM content=Program
map address=00-1f:8000-ffff mask=0xe08000 base=0x000000
map address=20-3f:8000-ffff mask=0xe08000 base=0x100000
map address=80-9f:8000-ffff mask=0xe08000 base=0x200000
map address=a0-bf:8000-ffff mask=0xe08000 base=0x100000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
slot type=BSMemory
map address=c0-ef:0000-ffff
board: BSC-1A7M-(01,10)
memory type=ROM content=Program
map address=00-1f:8000-ffff mask=0xe08000 base=0x000000
map address=20-3f:8000-ffff mask=0xe08000 base=0x100000
map address=80-9f:8000-ffff mask=0xe08000 base=0x200000
map address=a0-bf:8000-ffff mask=0xe08000 base=0x100000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
slot type=BSMemory
map address=c0-ef:0000-ffff
board: BSC-1J3M-01
memory type=ROM content=Program
map address=00-1f,80-9f:8000-ffff
map address=40-5f,c0-df:0000-ffff
memory type=RAM content=Save
map address=20-3f,a0-bf:6000-7fff mask=0xe000
slot type=BSMemory
map address=20-3f,a0-bf:8000-ffff
map address=60-7d,e0-ff:0000-ffff
board: BSC-1J5M-01
memory type=ROM content=Program
map address=00-1f,80-9f:8000-ffff
map address=40-5f,c0-df:0000-ffff
memory type=RAM content=Save
map address=20-3f,a0-bf:6000-7fff mask=0xe000
slot type=BSMemory
map address=20-3f,a0-bf:8000-ffff
map address=60-7d,e0-ff:0000-ffff
board: BSC-1L3B-01
processor architecture=W65C816S
map address=00-3f,80-bf:2200-23ff
mcu
map address=00-3f,80-bf:8000-ffff mask=0x408000
map address=c0-ff:0000-ffff
memory type=ROM content=Program
slot type=BSMemory
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff size=0x2000
map address=40-4f:0000-ffff
memory type=RAM content=Internal
map address=00-3f,80-bf:3000-37ff size=0x800
board: BSC-1L5B-01
processor architecture=W65C816S
map address=00-3f,80-bf:2200-23ff
mcu
map address=00-3f,80-bf:8000-ffff mask=0x408000
map address=c0-ff:0000-ffff
memory type=ROM content=Program
slot type=BSMemory
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff size=0x2000
map address=40-4f:0000-ffff
memory type=RAM content=Internal
map address=00-3f,80-bf:3000-37ff size=0x800
board: SGB-R-10
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
map address=40-7d,c0-ff:0000-7fff mask=0x8000
processor identifier=ICD revision=2
map address=00-3f,80-bf:6000-67ff,7000-7fff
memory type=ROM content=Boot architecture=SM83
slot type=GameBoy
board: SHVC-1A0N-(01,02,10,20,30)
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
map address=40-7d,c0-ff:0000-7fff mask=0x8000
board: SHVC-1A1B-(04,05,06)
memory type=ROM content=Program
map address=00-1f,80-9f:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-ffff
board: SHVC-1A1M-(01,10,11,20)
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
board: SHVC-1A3B-(11,12,13)
memory type=ROM content=Program
map address=00-1f,80-9f:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-ffff
board: SHVC-1A3B-20
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
board: SHVC-1A3M-(10,20,21,30)
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
board: SHVC-1A5B-(02,04)
memory type=ROM content=Program
map address=00-1f,80-9f:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-ffff
board: SHVC-1A5M-(01,11,20)
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
board: SHVC-1B0N-(02,03,10)
memory type=ROM content=Program
map address=00-1f,80-9f:8000-ffff mask=0x8000
processor architecture=uPD7725
map address=30-3f,b0-bf:8000-ffff mask=0x3fff
memory type=ROM content=Program architecture=uPD7725
memory type=ROM content=Data architecture=uPD7725
memory type=RAM content=Data architecture=uPD7725
oscillator
board: SHVC-1B5B-02
memory type=ROM content=Program
map address=00-1f,80-9f:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-ffff
processor architecture=uPD7725
map address=20-3f,a0-bf:8000-ffff mask=0x3fff
memory type=ROM content=Program architecture=uPD7725
memory type=ROM content=Data architecture=uPD7725
memory type=RAM content=Data architecture=uPD7725
oscillator
board: SHVC-1C0N
processor architecture=GSU
map address=00-3f,80-bf:3000-34ff
memory type=ROM content=Program
map address=00-1f,80-9f:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=60-7d,e0-ff:0000-ffff
board: SHVC-1C0N5S-01
processor architecture=GSU
map address=00-3f,80-bf:3000-34ff
memory type=ROM content=Program
map address=00-1f,80-9f:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=60-7d,e0-ff:0000-ffff
board: SHVC-1CA0N5S-01
processor architecture=GSU
map address=00-3f,80-bf:3000-34ff
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff mask=0x8000
map address=40-5f,c0-df:0000-ffff
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff size=0x2000
map address=70-71,f0-f1:0000-ffff
board: SHVC-1CA0N6S-01
processor architecture=GSU
map address=00-3f,80-bf:3000-34ff
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff mask=0x8000
map address=40-5f,c0-df:0000-ffff
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff size=0x2000
map address=70-71,f0-f1:0000-ffff
board: SHVC-1CA6B-01
processor architecture=GSU
map address=00-3f,80-bf:3000-34ff
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff mask=0x8000
map address=40-5f,c0-df:0000-ffff
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff size=0x2000
map address=70-71,f0-f1:0000-ffff
board: SHVC-1CB0N7S-01
processor architecture=GSU
map address=00-3f,80-bf:3000-34ff
memory type=ROM content=Program
map address=00-3f:8000-ffff mask=0x8000
map address=40-5f:0000-ffff
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff size=0x2000
map address=70-71:0000-ffff
board: SHVC-1CB5B-(01,20)
processor architecture=GSU
map address=00-3f,80-bf:3000-34ff
memory type=ROM content=Program
map address=00-3f:8000-ffff mask=0x8000
map address=40-5f:0000-ffff
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff size=0x2000
map address=70-71:0000-ffff
board: SHVC-1CB7B-01
processor architecture=GSU
map address=00-3f,80-bf:3000-34ff
memory type=ROM content=Program
map address=00-3f:8000-ffff mask=0x8000
map address=40-5f:0000-ffff
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff size=0x2000
map address=70-71:0000-ffff
board: SHVC-1DC0N-01
processor architecture=HG51BS169
map address=00-3f,80-bf:6c00-6fff,7c00-7fff
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-77:0000-7fff
memory type=ROM content=Data architecture=HG51BS169
memory type=RAM content=Data architecture=HG51BS169
map address=00-3f,80-bf:6000-6bff,7000-7bff mask=0xf000
oscillator
board: SHVC-1DS0B-20
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
processor architecture=uPD96050
map address=60-67,e0-e7:0000-3fff
memory type=ROM content=Program architecture=uPD96050
memory type=ROM content=Data architecture=uPD96050
memory type=RAM content=Data architecture=uPD96050
map address=68-6f,e8-ef:0000-7fff mask=0x8000
oscillator
board: SHVC-1J0N-(01,10,20)
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
board: SHVC-1J1M-(11,20)
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
memory type=RAM content=Save
map address=20-3f,a0-bf:6000-7fff mask=0xe000
board: SHVC-1J3B-01
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
memory type=RAM content=Save
map address=20-3f,a0-bf:6000-7fff mask=0xe000
board: SHVC-1J3M-(01,11,20)
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
memory type=RAM content=Save
map address=20-3f,a0-bf:6000-7fff mask=0xe000
board: SHVC-1J5M-(01,11,20)
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
memory type=RAM content=Save
map address=20-3f,a0-bf:6000-7fff mask=0xe000
board: SHVC-1K0N-01
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
processor architecture=uPD7725
map address=00-1f,80-9f:6000-7fff mask=0xfff
memory type=ROM content=Program architecture=uPD7725
memory type=ROM content=Data architecture=uPD7725
memory type=RAM content=Data architecture=uPD7725
oscillator
board: SHVC-1K1B-01
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
memory type=RAM content=Save
map address=20-3f,a0-bf:6000-7fff mask=0xe000
processor architecture=uPD7725
map address=00-1f,80-9f:6000-7fff mask=0xfff
memory type=ROM content=Program architecture=uPD7725
memory type=ROM content=Data architecture=uPD7725
memory type=RAM content=Data architecture=uPD7725
oscillator
board: SHVC-1K1X-10
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
memory type=RAM content=Save
map address=20-3f,a0-bf:6000-7fff mask=0xe000
processor architecture=uPD7725
map address=00-1f,80-9f:6000-7fff mask=0xfff
memory type=ROM content=Program architecture=uPD7725
memory type=ROM content=Data architecture=uPD7725
memory type=RAM content=Data architecture=uPD7725
oscillator
board: SHVC-1L0N3S-01
processor architecture=W65C816S
map address=00-3f,80-bf:2200-23ff
mcu
map address=00-3f,80-bf:8000-ffff mask=0x408000
map address=c0-ff:0000-ffff
memory type=ROM content=Program
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff size=0x2000
map address=40-4f:0000-ffff
memory type=RAM content=Internal
map address=00-3f,80-bf:3000-37ff size=0x800
board: SHVC-1L3B-(02,11)
processor architecture=W65C816S
map address=00-3f,80-bf:2200-23ff
mcu
map address=00-3f,80-bf:8000-ffff mask=0x408000
map address=c0-ff:0000-ffff
memory type=ROM content=Program
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff size=0x2000
map address=40-4f:0000-ffff
memory type=RAM content=Internal
map address=00-3f,80-bf:3000-37ff size=0x800
board: SHVC-1L5B-(11,20)
processor architecture=W65C816S
map address=00-3f,80-bf:2200-23ff
mcu
map address=00-3f,80-bf:8000-ffff mask=0x408000
map address=c0-ff:0000-ffff
memory type=ROM content=Program
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff size=0x2000
map address=40-4f:0000-ffff
memory type=RAM content=Internal
map address=00-3f,80-bf:3000-37ff size=0x800
board: SHVC-1N0N-(01,10)
processor identifier=SDD1
map address=00-3f,80-bf:4800-480f
mcu
map address=00-3f,80-bf:8000-ffff
map address=c0-ff:0000-ffff
memory type=ROM content=Program
board: SHVC-2A0N-01#A
memory type=ROM content=Program
map address=00-2f,80-af:8000-ffff mask=0x8000
map address=40-6f,c0-ef:0000-ffff mask=0x8000
board: SHVC-2A0N-(01,10,11,20)
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
map address=40-7d,c0-ff:0000-7fff mask=0x8000
board: SHVC-2A1M-01
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
board: SHVC-2A3B-01
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
board: SHVC-2A3M-01#A
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
board: SHVC-2A3M-(01,11,20)
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
board: SHVC-2A5M-01
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
board: SHVC-2B3B-01
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
processor architecture=uPD7725
map address=60-6f,e0-ef:0000-7fff mask=0x3fff
memory type=ROM content=Program architecture=uPD7725
memory type=ROM content=Data architecture=uPD7725
memory type=RAM content=Data architecture=uPD7725
oscillator
board: SHVC-2DC0N-01
processor architecture=HG51BS169
map address=00-3f,80-bf:6c00-6fff,7c00-7fff
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-77:0000-7fff
memory type=ROM content=Data architecture=HG51BS169
memory type=RAM content=Data architecture=HG51BS169
map address=00-3f,80-bf:6000-6bff,7000-7bff mask=0xf000
oscillator
board: SHVC-2E3M-01
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff mask=0x8000
processor identifier=OBC1
map address=00-3f,80-bf:6000-7fff mask=0xe000
map address=70-71,f0-f1:6000-7fff,e000-ffff mask=0xe000
memory type=RAM content=Save
board: SHVC-2J0N-(01,10,11,20)
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
board: SHVC-2J3M-(01,11,20)
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
memory type=RAM content=Save
map address=10-1f,30-3f,90-9f,b0-bf:6000-7fff mask=0xe000
board: SHVC-2J5M-01
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
memory type=RAM content=Save
map address=10-1f,30-3f,90-9f,b0-bf:6000-7fff mask=0xe000
board: SHVC-3J0N-01
memory type=ROM content=Program
map address=00-2f,80-af:8000-ffff
map address=40-6f,c0-ef:0000-ffff
board: SHVC-BA0N-(01,10)
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
map address=40-7d,c0-ff:0000-7fff mask=0x8000
board: SHVC-BA1M-01
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
board: SHVC-BA3M-(01,10)
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
board: SHVC-BJ0N-(01,20)
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
board: SHVC-BJ1M-(10,20)
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
memory type=RAM content=Save
map address=20-3f,a0-bf:6000-7fff mask=0xe000
board: SHVC-BJ3M-(10,20)
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
memory type=RAM content=Save
map address=20-3f,a0-bf:6000-7fff mask=0xe000
board: SHVC-LDH3C-01
processor identifier=SPC7110
map address=00-3f,80-bf:4800-483f
map address=50,58:0000-ffff
mcu
map address=00-3f,80-bf:8000-ffff mask=0x800000
map address=c0-ff:0000-ffff mask=0xc00000
memory type=ROM content=Program
memory type=ROM content=Data
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff mask=0xe000
rtc manufacturer=Epson
map address=00-3f,80-bf:4840-4842
memory type=RTC content=Time manufacturer=Epson
board: SHVC-LJ3M-01
memory type=ROM content=Program
map address=00-3f:8000-ffff base=0x400000
map address=40-7d:0000-ffff base=0x400000
map address=80-bf:8000-ffff mask=0xc00000
map address=c0-ff:0000-ffff mask=0xc00000
memory type=RAM content=Save
map address=80-bf:6000-7fff mask=0xe000
board: SHVC-LN3B-01
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff mask=0xe000
map address=70-73:0000-ffff
processor identifier=SDD1
map address=00-3f,80-bf:4800-480f
mcu
map address=00-3f,80-bf:8000-ffff
map address=c0-ff:0000-ffff
memory type=ROM content=Program
board: SHVC-SGB2-01
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
map address=40-7d,c0-ff:0000-7fff mask=0x8000
processor identifier=ICD revision=2
map address=00-3f,80-bf:6000-67ff,7000-7fff
memory type=ROM content=Boot architecture=SM83
oscillator
slot type=GameBoy
board: SHVC-YA0N-01
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
map address=40-7d,c0-ff:0000-7fff mask=0x8000
board: SHVC-YJ0N-01
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
//Boards (Generic)
database
revision: 2020-01-01
board: ARM-LOROM-RAM
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
map address=40-6f,c0-ef:0000-7fff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-ffff
processor architecture=ARM6
map address=00-3f,80-bf:3800-38ff
memory type=ROM content=Program architecture=ARM6
memory type=ROM content=Data architecture=ARM6
memory type=RAM content=Data architecture=ARM6
oscillator
board: BS-HIROM-RAM
memory type=ROM content=Program
map address=00-1f,80-9f:8000-ffff
map address=40-5f,c0-df:0000-ffff
memory type=RAM content=Save
map address=20-3f,a0-bf:6000-7fff mask=0xe000
slot type=BSMemory
map address=20-3f,a0-bf:8000-ffff
map address=60-7d,e0-ff:0000-ffff
board: BS-LOROM-RAM
memory type=ROM content=Program
map address=00-1f:8000-ffff mask=0xe08000 base=0x000000
map address=20-3f:8000-ffff mask=0xe08000 base=0x100000
map address=80-9f:8000-ffff mask=0xe08000 base=0x200000
map address=a0-bf:8000-ffff mask=0xe08000 base=0x100000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
slot type=BSMemory
map address=c0-ef:0000-ffff
board: BS-MCC-RAM
memory type=RAM content=Save
map address=10-17:5000-5fff mask=0xf000
processor identifier=MCC
map address=00-0f:5000-5fff
mcu
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
map address=20-3f,a0-bf:6000-7fff
memory type=ROM content=Program
memory type=RAM content=Download
slot type=BSMemory
board: BS-SA1-RAM
processor architecture=W65C816S
map address=00-3f,80-bf:2200-23ff
mcu
map address=00-3f,80-bf:8000-ffff mask=0x408000
map address=c0-ff:0000-ffff
memory type=ROM content=Program
slot type=BSMemory
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff size=0x2000
map address=40-4f:0000-ffff
memory type=RAM content=Internal
map address=00-3f,80-bf:3000-37ff size=0x800
board: EVENT-CC92
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
processor manufacturer=NEC architecture=uPD78214
identifier: Campus Challenge '92
map address=c0,e0:0000
mcu
map address=00-1f,80-9f:8000-ffff
memory type=ROM content=Program
memory type=ROM content=Level-1
memory type=ROM content=Level-2
memory type=ROM content=Level-3
dip
processor manufacturer=NEC architecture=uPD7725
map address=20-3f,a0-bf:8000-ffff mask=0x7fff
memory type=ROM content=Program architecture=uPD7725
memory type=ROM content=Data architecture=uPD7725
memory type=RAM content=Data architecture=uPD7725
oscillator
board: EVENT-PF94
memory type=RAM content=Save
map address=30-3f,b0-bf:6000-7fff mask=0xe000
processor manufacturer=NEC architecture=uPD78214
identifier: PowerFest '94
map address=10,20:6000
mcu
map address=00-3f,80-bf:8000-ffff
map address=c0-ff:0000-ffff
memory type=ROM content=Program
memory type=ROM content=Level-1
memory type=ROM content=Level-2
memory type=ROM content=Level-3
dip
processor manufacturer=NEC architecture=uPD7725
map address=00-0f,80-8f:6000-7fff mask=0xfff
memory type=ROM content=Program architecture=uPD7725
memory type=ROM content=Data architecture=uPD7725
memory type=RAM content=Data architecture=uPD7725
oscillator
board: EXHIROM
memory type=ROM content=Program
map address=00-3f:8000-ffff base=0x400000
map address=40-7d:0000-ffff base=0x400000
map address=80-bf:8000-ffff mask=0xc00000
map address=c0-ff:0000-ffff mask=0xc00000
board: EXHIROM-RAM
memory type=ROM content=Program
map address=00-3f:8000-ffff base=0x400000
map address=40-7d:0000-ffff base=0x400000
map address=80-bf:8000-ffff mask=0xc00000
map address=c0-ff:0000-ffff mask=0xc00000
memory type=RAM content=Save
map address=20-3f,a0-bf:6000-7fff mask=0xe000
map address=70-7d:0000-7fff
board: EXHIROM-RAM-SHARPRTC
memory type=ROM content=Program
map address=00-3f:8000-ffff base=0x400000
map address=40-7d:0000-ffff base=0x400000
map address=80-bf:8000-ffff mask=0xc00000
map address=c0-ff:0000-ffff mask=0xc00000
memory type=RAM content=Save
map address=20-3f,a0-bf:6000-7fff mask=0xe000
map address=70-7d:0000-7fff
rtc manufacturer=Sharp
map address=00-3f,80-bf:2800-2801
memory type=RTC content=Time manufacturer=Sharp
board: EXLOROM
memory type=ROM content=Program
map address=00-7d:8000-ffff mask=0x808000 base=0x400000
map address=80-ff:8000-ffff mask=0x808000 base=0x000000
board: EXLOROM-RAM
memory type=ROM content=Program
map address=00-7d:8000-ffff mask=0x808000 base=0x400000
map address=80-ff:8000-ffff mask=0x808000 base=0x000000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
board: EXNEC-LOROM
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
processor architecture=uPD96050
map address=60-67,e0-e7:0000-3fff
memory type=ROM content=Program architecture=uPD96050
memory type=ROM content=Data architecture=uPD96050
memory type=RAM content=Data architecture=uPD96050
map address=68-6f,e8-ef:0000-7fff mask=0x8000
oscillator
board: EXSPC7110-RAM-EPSONRTC
memory type=ROM content=Expansion
map address=40-4f:0000-ffff
processor identifier=SPC7110
map address=00-3f,80-bf:4800-483f
map address=50,58:0000-ffff
mcu
map address=00-3f,80-bf:8000-ffff mask=0x800000
map address=c0-ff:0000-ffff mask=0xc00000
memory type=ROM content=Program
memory type=ROM content=Data
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff mask=0xe000
rtc manufacturer=Epson
map address=00-3f,80-bf:4840-4842
memory type=RTC content=Time manufacturer=Epson
board: GB-LOROM
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
map address=40-7d,c0-ff:0000-7fff mask=0x8000
processor identifier=ICD revision=2
map address=00-3f,80-bf:6000-67ff,7000-7fff
memory type=ROM content=Boot architecture=SM83
oscillator
slot type=GameBoy
board: GSU-RAM
processor architecture=GSU
map address=00-3f,80-bf:3000-34ff
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff mask=0x8000
map address=40-5f,c0-df:0000-ffff
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff size=0x2000
map address=70-71,f0-f1:0000-ffff
board: HIROM
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
board: HIROM-RAM
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
memory type=RAM content=Save
map address=20-3f,a0-bf:6000-7fff mask=0xe000
board: HITACHI-LOROM
processor architecture=HG51BS169
map address=00-3f,80-bf:6c00-6fff,7c00-7fff
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-77:0000-7fff
memory type=ROM content=Data architecture=HG51BS169
memory type=RAM content=Data architecture=HG51BS169
map address=00-3f,80-bf:6000-6bff,7000-7bff mask=0xf000
oscillator
board: LOROM
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
board: LOROM-RAM
memory type=ROM content=Program
map address=00-7d,80-ff:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
board: LOROM-RAM#A
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-ffff mask=0x8000
board: NEC-HIROM
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
processor architecture=uPD7725
map address=00-1f,80-9f:6000-7fff mask=0xfff
memory type=ROM content=Program architecture=uPD7725
memory type=ROM content=Data architecture=uPD7725
memory type=RAM content=Data architecture=uPD7725
oscillator
board: NEC-HIROM-RAM
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff
map address=40-7d,c0-ff:0000-ffff
memory type=RAM content=Save
map address=20-3f,a0-bf:6000-7fff mask=0xe000
processor architecture=uPD7725
map address=00-1f,80-9f:6000-7fff mask=0xfff
memory type=ROM content=Program architecture=uPD7725
memory type=ROM content=Data architecture=uPD7725
memory type=RAM content=Data architecture=uPD7725
oscillator
board: NEC-LOROM
memory type=ROM content=Program
map address=00-1f,80-9f:8000-ffff mask=0x8000
processor architecture=uPD7725
map address=30-3f,b0-bf:8000-ffff mask=0x3fff
memory type=ROM content=Program architecture=uPD7725
memory type=ROM content=Data architecture=uPD7725
memory type=RAM content=Data architecture=uPD7725
oscillator
board: NEC-LOROM-RAM
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-7fff mask=0x8000
processor architecture=uPD7725
map address=60-6f,e0-ef:0000-7fff mask=0x3fff
memory type=ROM content=Program architecture=uPD7725
memory type=ROM content=Data architecture=uPD7725
memory type=RAM content=Data architecture=uPD7725
oscillator
board: NEC-LOROM-RAM#A
memory type=ROM content=Program
map address=00-1f,80-9f:8000-ffff mask=0x8000
memory type=RAM content=Save
map address=70-7d,f0-ff:0000-ffff
processor architecture=uPD7725
map address=20-3f,a0-bf:8000-ffff mask=0x3fff
memory type=ROM content=Program architecture=uPD7725
memory type=ROM content=Data architecture=uPD7725
memory type=RAM content=Data architecture=uPD7725
oscillator
board: OBC1-LOROM-RAM
memory type=ROM content=Program
map address=00-3f,80-bf:8000-ffff mask=0x8000
processor identifier=OBC1
map address=00-3f,80-bf:6000-7fff mask=0xe000
map address=70-71,f0-f1:6000-7fff,e000-ffff mask=0xe000
memory type=RAM content=Save
board: SA1-RAM
processor architecture=W65C816S
map address=00-3f,80-bf:2200-23ff
mcu
map address=00-3f,80-bf:8000-ffff mask=0x408000
map address=c0-ff:0000-ffff
memory type=ROM content=Program
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff size=0x2000
map address=40-4f:0000-ffff
memory type=RAM content=Internal
map address=00-3f,80-bf:3000-37ff size=0x800
board: SDD1
processor identifier=SDD1
map address=00-3f,80-bf:4800-480f
mcu
map address=00-3f,80-bf:8000-ffff
map address=c0-ff:0000-ffff
memory type=ROM content=Program
board: SDD1-RAM
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff mask=0xe000
map address=70-73:0000-ffff mask=0x8000
processor identifier=SDD1
map address=00-3f,80-bf:4800-480f
mcu
map address=00-3f,80-bf:8000-ffff
map address=c0-ff:0000-ffff
memory type=ROM content=Program
board: SPC7110-RAM
processor identifier=SPC7110
map address=00-3f,80-bf:4800-483f
map address=50,58:0000-ffff
mcu
map address=00-3f,80-bf:8000-ffff mask=0x800000
map address=c0-ff:0000-ffff mask=0xc00000
memory type=ROM content=Program
memory type=ROM content=Data
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff mask=0xe000
board: SPC7110-RAM-EPSONRTC
processor identifier=SPC7110
map address=00-3f,80-bf:4800-483f
map address=50,58:0000-ffff
mcu
map address=00-3f,80-bf:8000-ffff mask=0x800000
map address=c0-ff:0000-ffff mask=0xc00000
memory type=ROM content=Program
memory type=ROM content=Data
memory type=RAM content=Save
map address=00-3f,80-bf:6000-7fff mask=0xe000
rtc manufacturer=Epson
map address=00-3f,80-bf:4840-4842
memory type=RTC content=Time manufacturer=Epson
board: ST-LOROM
memory type=ROM content=Program
map address=00-1f,80-9f:8000-ffff mask=0x8000
slot type=SufamiTurbo
rom
map address=20-3f,a0-bf:8000-ffff mask=0x8000
ram
map address=60-6f,e0-ef:0000-ffff
slot type=SufamiTurbo
rom
map address=40-5f,c0-df:0000-ffff mask=0x8000
ram
map address=70-7d,f0-ff:0000-ffff
Binary file not shown.
Whitespace-only changes.
Binary file not shown.
Binary file not shown.
Binary file not shown.
-53
View File
@@ -1,53 +0,0 @@
components := $(call unique,$(components))
objects += $(if $(findstring ay38910,$(components)),audio-ay38910)
objects += $(if $(findstring sn76489,$(components)),audio-sn76489)
objects += $(if $(findstring t6w28,$(components)),audio-t6w28)
objects += $(if $(findstring ym2149,$(components)),audio-ym2149)
objects += $(if $(findstring ym2413,$(components)),audio-ym2413)
objects += $(if $(findstring m93lcx6,$(components)),eeprom-m93lcx6)
objects += $(if $(findstring x24c01,$(components)),eeprom-x24c01)
objects += $(if $(findstring arm7tdmi,$(components)),processor-arm7tdmi)
objects += $(if $(findstring gsu,$(components)),processor-gsu)
objects += $(if $(findstring hg51b,$(components)),processor-hg51b)
objects += $(if $(findstring huc6280,$(components)),processor-huc6280)
objects += $(if $(findstring m68k,$(components)),processor-m68k)
objects += $(if $(findstring mos6502,$(components)),processor-mos6502)
objects += $(if $(findstring sm83,$(components)),processor-sm83)
objects += $(if $(findstring spc700,$(components)),processor-spc700)
objects += $(if $(findstring tlcs900h,$(components)),processor-tlcs900h)
objects += $(if $(findstring upd96050,$(components)),processor-upd96050)
objects += $(if $(findstring v30mz,$(components)),processor-v30mz)
objects += $(if $(findstring wdc65816,$(components)),processor-wdc65816)
objects += $(if $(findstring z80,$(components)),processor-z80)
objects += $(if $(findstring tms9918,$(components)),video-tms9918)
objects += $(if $(findstring v9938,$(components)),video-v9938)
obj/audio-ay38910.o: component/audio/ay38910/ay38910.cpp
obj/audio-sn76489.o: component/audio/sn76489/sn76489.cpp
obj/audio-t6w28.o: component/audio/t6w28/t6w28.cpp
obj/audio-ym2149.o: component/audio/ym2149/ym2149.cpp
obj/audio-ym2413.o: component/audio/ym2413/ym2413.cpp
obj/eeprom-m93lcx6.o: component/eeprom/m93lcx6/m93lcx6.cpp
obj/eeprom-x24c01.o: component/eeprom/x24c01/x24c01.cpp
obj/processor-arm7tdmi.o: component/processor/arm7tdmi/arm7tdmi.cpp
obj/processor-gsu.o: component/processor/gsu/gsu.cpp
obj/processor-hg51b.o: component/processor/hg51b/hg51b.cpp
obj/processor-huc6280.o: component/processor/huc6280/huc6280.cpp
obj/processor-m68k.o: component/processor/m68k/m68k.cpp
obj/processor-mos6502.o: component/processor/mos6502/mos6502.cpp
obj/processor-sm83.o: component/processor/sm83/sm83.cpp
obj/processor-spc700.o: component/processor/spc700/spc700.cpp
obj/processor-tlcs900h.o: component/processor/tlcs900h/tlcs900h.cpp
obj/processor-upd96050.o: component/processor/upd96050/upd96050.cpp
obj/processor-v30mz.o: component/processor/v30mz/v30mz.cpp
obj/processor-wdc65816.o: component/processor/wdc65816/wdc65816.cpp
obj/processor-z80.o: component/processor/z80/z80.cpp
obj/video-tms9918.o: component/video/tms9918/tms9918.cpp
obj/video-v9938.o: component/video/v9938/v9938.cpp
-225
View File
@@ -1,225 +0,0 @@
#include <emulator/emulator.hpp>
#include "ay38910.hpp"
namespace ares {
#include "serialization.cpp"
auto AY38910::clock() -> array<uint4[3]> {
toneA.clock();
toneB.clock();
toneC.clock();
noise.clock();
envelope.clock();
array<uint4[3]> output;
if((toneA.output | channelA.tone) & (noise.output | channelA.noise)) {
output[0] = channelA.envelope ? envelope.output : channelA.volume;
}
if((toneB.output | channelB.tone) & (noise.output | channelB.noise)) {
output[1] = channelB.envelope ? envelope.output : channelB.volume;
}
if((toneC.output | channelC.tone) & (noise.output |channelC.noise)) {
output[2] = channelC.envelope ? envelope.output : channelC.volume;
}
return output;
}
auto AY38910::Tone::clock() -> void {
if(++counter >= period) {
counter = 0;
output ^= 1;
}
}
auto AY38910::Noise::clock() -> void {
if(++counter >= period) {
counter = 0;
if(flip ^= 1) {
output = !lfsr.bit(0);
lfsr = (lfsr.bit(0) ^ lfsr.bit(3)) << 16 | lfsr >> 1;
}
}
}
auto AY38910::Envelope::clock() -> void {
if(!holding && ++counter >= period) {
counter = 0;
if(!attacking) {
if(output != 0) return (void)output--;
} else {
if(output != 15) return (void)output++;
}
if(!repeat) {
output = 0;
holding = 1;
} else if(hold) {
if(alternate) output ^= 15;
holding = 1;
} else if(alternate) {
attacking ^= 1;
} else {
output = !attacking ? 15 : 0;
}
}
}
auto AY38910::read() -> uint8 {
uint8 data;
switch(io.register) {
case 0:
data.bit(0,7) = toneA.period.bit(0, 7);
break;
case 1:
data.bit(0,3) = toneA.period.bit(8,11);
break;
case 2:
data.bit(0,7) = toneB.period.bit(0, 7);
break;
case 3:
data.bit(0,3) = toneB.period.bit(8,11);
break;
case 4:
data.bit(0,7) = toneC.period.bit(0, 7);
break;
case 5:
data.bit(0,3) = toneC.period.bit(8,11);
break;
case 6:
data.bit(0,4) = noise.period;
break;
case 7:
data.bit(0) = channelA.tone;
data.bit(1) = channelB.tone;
data.bit(2) = channelC.tone;
data.bit(3) = channelA.noise;
data.bit(4) = channelB.noise;
data.bit(5) = channelC.noise;
data.bit(6) = portA.direction;
data.bit(7) = portB.direction;
break;
case 8:
data.bit(0,3) = channelA.volume;
data.bit(4) = channelA.envelope;
break;
case 9:
data.bit(0,3) = channelB.volume;
data.bit(4) = channelB.envelope;
break;
case 10:
data.bit(0,3) = channelC.volume;
data.bit(4) = channelC.envelope;
break;
case 11:
data.bit(0,7) = envelope.period.bit(0, 7);
break;
case 12:
data.bit(0,7) = envelope.period.bit(8,15);
break;
case 13:
data.bit(0) = envelope.hold;
data.bit(1) = envelope.alternate;
data.bit(2) = envelope.attack;
data.bit(3) = envelope.repeat;
break;
case 14:
data.bit(0,7) = readIO(0);
break;
case 15:
data.bit(0,7) = readIO(1);
break;
}
return data;
}
auto AY38910::write(uint8 data) -> void {
switch(io.register) {
case 0:
toneA.period.bit(0, 7) = data.bit(0,7);
break;
case 1:
toneA.period.bit(8,11) = data.bit(0,3);
break;
case 2:
toneB.period.bit(0, 7) = data.bit(0,7);
break;
case 3:
toneB.period.bit(8,11) = data.bit(0,3);
break;
case 4:
toneC.period.bit(0, 7) = data.bit(0,7);
break;
case 5:
toneC.period.bit(8,11) = data.bit(0,3);
break;
case 6:
noise.period = data.bit(0,4);
break;
case 7:
channelA.tone = data.bit(0);
channelB.tone = data.bit(1);
channelC.tone = data.bit(2);
channelA.noise = data.bit(3);
channelB.noise = data.bit(4);
channelC.noise = data.bit(5);
portA.direction = data.bit(6);
portB.direction = data.bit(7);
break;
case 8:
channelA.volume = data.bit(0,3);
channelA.envelope = data.bit(4);
break;
case 9:
channelB.volume = data.bit(0,3);
channelB.envelope = data.bit(4);
break;
case 10:
channelC.volume = data.bit(0,3);
channelC.envelope = data.bit(4);
break;
case 11:
envelope.period.bit(0, 7) = data.bit(0,7);
break;
case 12:
envelope.period.bit(8,15) = data.bit(0,7);
break;
case 13:
envelope.hold = data.bit(0);
envelope.alternate = data.bit(1);
envelope.attack = data.bit(2);
envelope.repeat = data.bit(3);
envelope.holding = 0;
envelope.attacking = envelope.attack;
envelope.output = !envelope.attacking ? 15 : 0;
break;
case 14:
writeIO(0, data);
break;
case 15:
writeIO(1, data);
break;
}
}
auto AY38910::select(uint4 data) -> void {
io.register = data;
}
auto AY38910::power() -> void {
toneA = {};
toneB = {};
toneC = {};
noise = {};
envelope = {};
channelA = {};
channelB = {};
channelC = {};
portA = {};
portB = {};
io = {};
}
}
-86
View File
@@ -1,86 +0,0 @@
#pragma once
namespace ares {
//General Instrument AY-3-8910
struct AY38910 {
virtual auto readIO(uint1 port) -> uint8 { return 0xff; }
virtual auto writeIO(uint1 port, uint8 data) -> void {}
//ay38910.cpp
auto clock() -> array<uint4[3]>;
auto read() -> uint8;
auto write(uint8 data) -> void;
auto select(uint4 data) -> void;
auto power() -> void;
//serialization.cpp
auto serialize(serializer&) -> void;
protected:
struct Tone {
//ay38910.cpp
auto clock() -> void;
uint12 counter;
uint12 period;
uint1 output;
};
struct Noise {
//ay38910.cpp
auto clock() -> void;
uint5 counter;
uint5 period;
uint1 flip;
uint17 lfsr = 1;
uint1 output;
};
struct Envelope {
//ay38910.cpp
auto clock() -> void;
uint16 counter;
uint16 period;
uint1 holding;
uint1 attacking;
uint1 hold;
uint1 alternate;
uint1 attack;
uint1 repeat; //continue
uint4 output;
};
struct Channel {
uint1 tone; //0 = enable, 1 = disable
uint1 noise; //0 = enable, 1 = disable
uint1 envelope; //0 = use fixed volume, 1 = use envelope phase
uint4 volume;
};
struct Port {
uint1 direction; //0 = input, 1 = output
uint8 data;
};
struct IO {
uint4 register;
};
Tone toneA;
Tone toneB;
Tone toneC;
Noise noise;
Envelope envelope;
Channel channelA;
Channel channelB;
Channel channelC;
Port portA;
Port portB;
IO io;
};
}
@@ -1,52 +0,0 @@
auto AY38910::serialize(serializer& s) -> void {
s.integer(toneA.counter);
s.integer(toneA.period);
s.integer(toneA.output);
s.integer(toneB.counter);
s.integer(toneB.period);
s.integer(toneB.output);
s.integer(toneC.counter);
s.integer(toneC.period);
s.integer(toneC.output);
s.integer(noise.counter);
s.integer(noise.period);
s.integer(noise.flip);
s.integer(noise.lfsr);
s.integer(noise.output);
s.integer(envelope.counter);
s.integer(envelope.period);
s.integer(envelope.holding);
s.integer(envelope.attacking);
s.integer(envelope.hold);
s.integer(envelope.alternate);
s.integer(envelope.attack);
s.integer(envelope.repeat);
s.integer(envelope.output);
s.integer(channelA.tone);
s.integer(channelA.noise);
s.integer(channelA.envelope);
s.integer(channelA.volume);
s.integer(channelB.tone);
s.integer(channelB.noise);
s.integer(channelB.envelope);
s.integer(channelB.volume);
s.integer(channelC.tone);
s.integer(channelC.noise);
s.integer(channelC.envelope);
s.integer(channelC.volume);
s.integer(portA.direction);
s.integer(portA.data);
s.integer(portB.direction);
s.integer(portB.data);
s.integer(io.register);
}
@@ -1,25 +0,0 @@
auto SN76489::serialize(serializer& s) -> void {
tone0.serialize(s);
tone1.serialize(s);
tone2.serialize(s);
noise.serialize(s);
s.integer(io.register);
}
auto SN76489::Tone::serialize(serializer& s) -> void {
s.integer(volume);
s.integer(counter);
s.integer(pitch);
s.integer(output);
}
auto SN76489::Noise::serialize(serializer& s) -> void {
s.integer(volume);
s.integer(counter);
s.integer(pitch);
s.integer(enable);
s.integer(rate);
s.integer(lfsr);
s.integer(flip);
s.integer(output);
}
-75
View File
@@ -1,75 +0,0 @@
#include <emulator/emulator.hpp>
#include "sn76489.hpp"
namespace ares {
#include "serialization.cpp"
auto SN76489::clock() -> array<uint4[4]> {
tone0.clock();
tone1.clock();
tone2.clock();
noise.clock();
array<uint4[4]> output{15, 15, 15, 15};
if(tone0.output) output[0] = tone0.volume;
if(tone1.output) output[1] = tone1.volume;
if(tone2.output) output[2] = tone2.volume;
if(noise.output) output[3] = noise.volume;
return output;
}
auto SN76489::Tone::clock() -> void {
if(!counter--) {
counter = pitch;
output ^= 1;
}
}
auto SN76489::Noise::clock() -> void {
if(!counter--) {
counter = array<uint10[4]>{0x10, 0x20, 0x40, pitch}[rate];
if(flip ^= 1) { //0->1 transition
output = !lfsr.bit(0);
lfsr = (lfsr.bit(0) ^ lfsr.bit(3) & enable) << 15 | lfsr >> 1;
}
}
}
auto SN76489::write(uint8 data) -> void {
if(data.bit(7)) io.register = data.bit(4,6);
if(io.register.bit(0)) switch(io.register.bit(1,2)) {
case 0: tone0.volume = data.bit(0,3); break;
case 1: tone1.volume = data.bit(0,3); break;
case 2: tone2.volume = data.bit(0,3); break;
case 3: noise.volume = data.bit(0,3); break;
}
else if(data.bit(7)) switch(io.register.bit(1,2)) {
case 0: tone0.pitch.bit(0,3) = data.bit(0,3); break;
case 1: tone1.pitch.bit(0,3) = data.bit(0,3); break;
case 2: tone2.pitch.bit(0,3) = data.bit(0,3); noise.pitch = tone2.pitch; break;
case 3: noise.rate = data.bit(0,1);
noise.enable = data.bit(2);
noise.lfsr = 0x8000;
break;
}
else switch(io.register.bit(1,2)) {
case 0: tone0.pitch.bit(4,9) = data.bit(0,5); break;
case 1: tone1.pitch.bit(4,9) = data.bit(0,5); break;
case 2: tone2.pitch.bit(4,9) = data.bit(0,5); noise.pitch = tone2.pitch; break;
case 3: noise.volume = data.bit(0,3); break;
}
}
auto SN76489::power() -> void {
tone0 = {};
tone1 = {};
tone2 = {};
noise = {};
io = {};
}
}
-58
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#pragma once
namespace ares {
//Texas Instruments SN76489
struct SN76489 {
//sn76489.cpp
auto clock() -> array<uint4[4]>;
auto write(uint8 data) -> void;
auto power() -> void;
//serialization.cpp
auto serialize(serializer&) -> void;
protected:
struct Tone {
//sn76489.cpp
auto clock() -> void;
//serialization.cpp
auto serialize(serializer&) -> void;
uint4 volume = 15;
uint10 counter;
uint10 pitch;
uint1 output;
};
struct Noise {
//sn76489.cpp
auto clock() -> void;
//serialization.cpp
auto serialize(serializer&) -> void;
uint4 volume = 15;
uint10 counter;
uint10 pitch;
uint1 enable;
uint2 rate;
uint16 lfsr = 0x8000;
uint1 flip;
uint1 output;
};
struct IO {
uint3 register;
};
Tone tone0;
Tone tone1;
Tone tone2;
Noise noise;
IO io;
};
}
@@ -1,27 +0,0 @@
auto T6W28::serialize(serializer& s) -> void {
tone0.serialize(s);
tone1.serialize(s);
tone2.serialize(s);
noise.serialize(s);
s.integer(io.register);
}
auto T6W28::Tone::serialize(serializer& s) -> void {
s.integer(counter);
s.integer(pitch);
s.integer(output);
s.integer(volume.left);
s.integer(volume.right);
}
auto T6W28::Noise::serialize(serializer& s) -> void {
s.integer(counter);
s.integer(pitch);
s.integer(enable);
s.integer(rate);
s.integer(lfsr);
s.integer(flip);
s.integer(output);
s.integer(volume.left);
s.integer(volume.right);
}
-93
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#include <emulator/emulator.hpp>
#include "t6w28.hpp"
namespace ares {
#include "serialization.cpp"
auto T6W28::clock() -> array<uint4[8]> {
tone0.clock();
tone1.clock();
tone2.clock();
noise.clock();
array<uint4[8]> output{15, 15, 15, 15, 15, 15, 15, 15};
if(tone0.output) output[0] = tone0.volume.left, output[4] = tone0.volume.right;
if(tone1.output) output[1] = tone1.volume.left, output[5] = tone1.volume.right;
if(tone2.output) output[2] = tone2.volume.left, output[6] = tone2.volume.right;
if(noise.output) output[3] = noise.volume.left, output[7] = noise.volume.right;
return output;
}
auto T6W28::Tone::clock() -> void {
if(!counter--) {
counter = pitch;
output ^= 1;
}
}
auto T6W28::Noise::clock() -> void {
if(!counter--) {
counter = array<uint10[4]>{0x10, 0x20, 0x40, pitch}[rate];
if(flip ^= 1) {
output = !lfsr.bit(0);
lfsr = (lfsr.bit(0) ^ lfsr.bit(2) & enable) << 14 | lfsr >> 1;
}
}
}
auto T6W28::writeLeft(uint8 data) -> void {
if(data.bit(7)) io.register = data.bit(4,6);
if(io.register.bit(0)) switch(io.register.bit(1,2)) {
case 0: tone0.volume.left = data.bit(0,3); break;
case 1: tone1.volume.left = data.bit(0,3); break;
case 2: tone2.volume.left = data.bit(0,3); break;
case 3: noise.volume.left = data.bit(0,3); break;
}
else if(data.bit(7)) switch(io.register.bit(1,2)) {
case 0: tone0.pitch.bit(0,3) = data.bit(0,3); break;
case 1: tone1.pitch.bit(0,3) = data.bit(0,3); break;
case 2: tone2.pitch.bit(0,3) = data.bit(0,3); break;
}
else switch(io.register.bit(1,2)) {
case 0: tone0.pitch.bit(4,9) = data.bit(0,5); break;
case 1: tone1.pitch.bit(4,9) = data.bit(0,5); break;
case 2: tone2.pitch.bit(4,9) = data.bit(0,5); break;
}
}
auto T6W28::writeRight(uint8 data) -> void {
if(data.bit(7)) io.register = data.bit(4,6);
if(io.register.bit(0)) switch(io.register.bit(1,2)) {
case 0: tone0.volume.right = data.bit(0,3); break;
case 1: tone1.volume.right = data.bit(0,3); break;
case 2: tone2.volume.right = data.bit(0,3); break;
case 3: noise.volume.right = data.bit(0,3); break;
}
else if(data.bit(7)) switch(io.register.bit(1,2)) {
case 2: noise.pitch.bit(0,3) = data.bit(0,3); break;
case 3: noise.rate = data.bit(0,1);
noise.enable = data.bit(2);
noise.lfsr = 0x4000;
break;
}
else switch(io.register.bit(1,2)) {
case 2: noise.pitch.bit(4,9) = data.bit(0,5); break;
}
}
auto T6W28::power() -> void {
tone0 = {};
tone1 = {};
tone2 = {};
noise = {};
io = {};
}
}
-65
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#pragma once
namespace ares {
//T6W28 (SN76489 variant)
struct T6W28 {
//t6w28.cpp
auto clock() -> array<uint4[8]>;
auto writeLeft(uint8 data) -> void;
auto writeRight(uint8 data) -> void;
auto power() -> void;
//serialization.cpp
auto serialize(serializer&) -> void;
protected:
struct Tone {
//t6w28.cpp
auto clock() -> void;
//serialization.cpp
auto serialize(serializer&) -> void;
uint10 counter;
uint10 pitch;
uint1 output;
struct Volume {
uint4 left = 15;
uint4 right = 15;
} volume;
};
struct Noise {
//t6w28.cpp
auto clock() -> void;
//serialization.cpp
auto serialize(serializer&) -> void;
uint10 counter;
uint10 pitch;
uint1 enable;
uint2 rate;
uint15 lfsr = 0x4000;
uint1 flip;
uint1 output;
struct Volume {
uint4 left = 15;
uint4 right = 15;
} volume;
};
struct IO {
uint3 register;
};
Tone tone0;
Tone tone1;
Tone tone2;
Noise noise;
IO io;
};
}
@@ -1,60 +0,0 @@
auto YM2149::serialize(serializer& s) -> void {
s.integer(toneA.counter);
s.integer(toneA.period);
s.integer(toneA.unused);
s.integer(toneA.output);
s.integer(toneB.counter);
s.integer(toneB.period);
s.integer(toneB.unused);
s.integer(toneB.output);
s.integer(toneC.counter);
s.integer(toneC.period);
s.integer(toneC.unused);
s.integer(toneC.output);
s.integer(noise.counter);
s.integer(noise.period);
s.integer(noise.unused);
s.integer(noise.flip);
s.integer(noise.lfsr);
s.integer(noise.output);
s.integer(envelope.counter);
s.integer(envelope.period);
s.integer(envelope.holding);
s.integer(envelope.attacking);
s.integer(envelope.hold);
s.integer(envelope.alternate);
s.integer(envelope.attack);
s.integer(envelope.repeat);
s.integer(envelope.unused);
s.integer(envelope.output);
s.integer(channelA.tone);
s.integer(channelA.noise);
s.integer(channelA.envelope);
s.integer(channelA.volume);
s.integer(channelA.unused);
s.integer(channelB.tone);
s.integer(channelB.noise);
s.integer(channelB.envelope);
s.integer(channelB.volume);
s.integer(channelB.unused);
s.integer(channelC.tone);
s.integer(channelC.noise);
s.integer(channelC.envelope);
s.integer(channelC.volume);
s.integer(channelC.unused);
s.integer(portA.direction);
s.integer(portA.data);
s.integer(portB.direction);
s.integer(portB.data);
s.integer(io.register);
}
-243
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#include <emulator/emulator.hpp>
#include "ym2149.hpp"
namespace ares {
#include "serialization.cpp"
auto YM2149::clock() -> array<uint5[3]> {
toneA.clock();
toneB.clock();
toneC.clock();
noise.clock();
envelope.clock();
array<uint5[3]> output;
if((toneA.output | channelA.tone) & (noise.output | channelA.noise)) {
output[0] = channelA.envelope ? envelope.output : uint5(channelA.volume << 1 | 1);
}
if((toneB.output | channelB.tone) & (noise.output | channelB.noise)) {
output[1] = channelB.envelope ? envelope.output : uint5(channelB.volume << 1 | 1);
}
if((toneC.output | channelC.tone) & (noise.output | channelC.noise)) {
output[2] = channelC.envelope ? envelope.output : uint5(channelC.volume << 1 | 1);
}
return output;
}
auto YM2149::Tone::clock() -> void {
if(++counter >= period) {
counter = 0;
output ^= 1;
}
}
auto YM2149::Noise::clock() -> void {
if(++counter >= period) {
counter = 0;
if(flip ^= 1) {
output = !lfsr.bit(0);
lfsr = (lfsr.bit(0) ^ lfsr.bit(3)) << 16 | lfsr >> 1;
}
}
}
auto YM2149::Envelope::clock() -> void {
if(holding) return;
counter += 2;
if(counter >= period) {
counter = 0;
if(!attacking) {
if(output != 0) return (void)output--;
} else {
if(output != 31) return (void)output++;
}
if(!repeat) {
output = 0;
holding = 1;
} else if(hold) {
if(alternate) output ^= 31;
holding = 1;
} else if(alternate) {
attacking ^= 1;
} else {
output = !attacking ? 31 : 0;
}
}
}
auto YM2149::read() -> uint8 {
uint8 data;
switch(io.register) {
case 0:
data.bit(0,7) = toneA.period.bit(0, 7);
break;
case 1:
data.bit(0,3) = toneA.period.bit(8,11);
data.bit(4,7) = toneA.unused.bit(0, 3);
break;
case 2:
data.bit(0,7) = toneB.period.bit(0, 7);
break;
case 3:
data.bit(0,3) = toneB.period.bit(8,11);
data.bit(4,7) = toneB.unused.bit(0, 3);
break;
case 4:
data.bit(0,7) = toneC.period.bit(0, 7);
break;
case 5:
data.bit(0,3) = toneC.period.bit(8,11);
data.bit(4,7) = toneC.unused.bit(0, 3);
break;
case 6:
data.bit(0,4) = noise.period;
data.bit(5,7) = noise.unused;
break;
case 7:
data.bit(0) = channelA.tone;
data.bit(1) = channelB.tone;
data.bit(2) = channelC.tone;
data.bit(3) = channelA.noise;
data.bit(4) = channelB.noise;
data.bit(5) = channelC.noise;
data.bit(6) = portA.direction;
data.bit(7) = portB.direction;
break;
case 8:
data.bit(0,3) = channelA.volume;
data.bit(4) = channelA.envelope;
data.bit(5,7) = channelA.unused;
break;
case 9:
data.bit(0,3) = channelB.volume;
data.bit(4) = channelB.envelope;
data.bit(5,7) = channelB.unused;
break;
case 10:
data.bit(0,3) = channelC.volume;
data.bit(4) = channelC.envelope;
data.bit(5,7) = channelC.unused;
break;
case 11:
data.bit(0,7) = envelope.period.bit(0, 7);
break;
case 12:
data.bit(0,7) = envelope.period.bit(8,15);
break;
case 13:
data.bit(0) = envelope.hold;
data.bit(1) = envelope.alternate;
data.bit(2) = envelope.attack;
data.bit(3) = envelope.repeat;
data.bit(4,7) = envelope.unused;
break;
case 14:
data.bit(0,7) = portA.data;
break;
case 15:
data.bit(0,7) = portB.data;
break;
}
return data;
}
auto YM2149::write(uint8 data) -> void {
switch(io.register) {
case 0:
toneA.period.bit(0, 7) = data.bit(0,7);
break;
case 1:
toneA.period.bit(8,11) = data.bit(0,3);
toneA.unused.bit(0, 3) = data.bit(4,7);
break;
case 2:
toneB.period.bit(0, 7) = data.bit(0,7);
break;
case 3:
toneB.period.bit(8,11) = data.bit(0,3);
toneB.unused.bit(0, 3) = data.bit(4,7);
break;
case 4:
toneC.period.bit(0, 7) = data.bit(0,7);
break;
case 5:
toneC.period.bit(8,11) = data.bit(0,3);
toneC.unused.bit(0, 3) = data.bit(4,7);
break;
case 6:
noise.period = data.bit(0,4);
noise.unused = data.bit(5,7);
break;
case 7:
channelA.tone = data.bit(0);
channelB.tone = data.bit(1);
channelC.tone = data.bit(2);
channelA.noise = data.bit(3);
channelB.noise = data.bit(4);
channelC.noise = data.bit(5);
portA.direction = data.bit(6);
portB.direction = data.bit(7);
break;
case 8:
channelA.volume = data.bit(0,3);
channelA.envelope = data.bit(4);
channelA.unused = data.bit(5,7);
break;
case 9:
channelB.volume = data.bit(0,3);
channelB.envelope = data.bit(4);
channelB.unused = data.bit(5,7);
break;
case 10:
channelC.volume = data.bit(0,3);
channelC.envelope = data.bit(4);
channelC.unused = data.bit(5,7);
break;
case 11:
envelope.period.bit(0, 7) = data.bit(0,7);
break;
case 12:
envelope.period.bit(8,15) = data.bit(0,7);
break;
case 13:
envelope.hold = data.bit(0);
envelope.alternate = data.bit(1);
envelope.attack = data.bit(2);
envelope.repeat = data.bit(3);
envelope.unused = data.bit(4,7);
envelope.holding = 0;
envelope.attacking = envelope.attack;
envelope.output = !envelope.attacking ? 31 : 0;
break;
case 14:
portA.data = data;
break;
case 15:
portB.data = data;
break;
}
}
auto YM2149::select(uint4 data) -> void {
io.register = data;
}
auto YM2149::power() -> void {
toneA = {};
toneB = {};
toneC = {};
noise = {};
envelope = {};
channelA = {};
channelB = {};
channelC = {};
portA = {};
portB = {};
io = {};
}
}
-87
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#pragma once
namespace ares {
//Yamaha YM2149 (General Instrument AY-3-8910 derivative)
struct YM2149 {
//ym2149.cpp
auto clock() -> array<uint5[3]>;
auto read() -> uint8;
auto write(uint8 data) -> void;
auto select(uint4 data) -> void;
auto power() -> void;
//serialization.cpp
auto serialize(serializer&) -> void;
protected:
struct Tone {
//ym2149.cpp
auto clock() -> void;
uint12 counter;
uint12 period;
uint4 unused;
uint1 output;
};
struct Noise {
//ym2149.cpp
auto clock() -> void;
uint5 counter;
uint5 period;
uint3 unused;
uint1 flip;
uint17 lfsr = 1;
uint1 output;
};
struct Envelope {
//ym2149.cpp
auto clock() -> void;
uint16 counter;
uint16 period;
uint1 holding;
uint1 attacking;
uint1 hold;
uint1 alternate;
uint1 attack;
uint1 repeat; //continue
uint4 unused;
uint5 output;
};
struct Channel {
uint1 tone; //0 = enable, 1 = disable
uint1 noise; //0 = enable, 1 = disable
uint1 envelope; //0 = use fixed volume, 1 = use envelope volume
uint4 volume;
uint3 unused;
};
struct Port {
uint1 direction; //0 = input, 1 = output
uint8 data;
};
struct IO {
uint4 register;
};
Tone toneA;
Tone toneB;
Tone toneC;
Noise noise;
Envelope envelope;
Channel channelA;
Channel channelB;
Channel channelC;
Port portA;
Port portB;
IO io;
};
}
-81
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const int8 YM2413::levelScaling[16] = {
//-6 dB/octave, -6 dB/8 units
//input: fnumber.bits(5,8)
0, 24, 32, 37, 40, 43, 45, 47, 48, 50, 51, 52, 53, 54, 55, 56,
};
const uint64 YM2413::envelopeSteps[17][2] = {
//{attack sequence, decay sequence },
{0x0101010101010101, 0x0101010101010101}, // 4..44
{0x0101110101011101, 0x0101110101011101}, // 5..45
{0x0111011101110111, 0x0111011101110111}, // 6..46
{0x0111111101111111, 0x0111111101111111}, // 7..47
{0x1111111111111111, 0x0101010101010101}, //48
{0x1121112111211121, 0x0101110101011101}, //49
{0x1212121212121212, 0x0111011101110111}, //50
{0x1222122212221222, 0x0111111101111111}, //51
{0x2222222222222222, 0x0101010101010101}, //52
{0x2242224222422242, 0x0101010111110101}, //53
{0x2424242424242424, 0x0101111101011111}, //54
{0x2444244424442444, 0x0101111111111111}, //55
{0x4444444444444444, 0x1111111111111111}, //56
{0x4484448444844484, 0x1111111122221111}, //57
{0x4848484848484848, 0x1111222211112222}, //58
{0x4888488848884888, 0x1111222222222222}, //59
{0x0000000000000000, 0x2222222222222222}, //60+
};
/* these are approximations and are not hardware accurate */
const uint8 YM2413::melodicTonesOPLL[15][8] = {
{0x61, 0x61, 0x1e, 0x17, 0xf0, 0x78, 0x00, 0x17},
{0x13, 0x41, 0x1e, 0x0d, 0xd7, 0xf7, 0x13, 0x13},
{0x13, 0x01, 0x99, 0x04, 0xf2, 0xf4, 0x11, 0x23},
{0x21, 0x61, 0x1b, 0x07, 0xaf, 0x64, 0x40, 0x27},
{0x22, 0x21, 0x1e, 0x06, 0xf0, 0x75, 0x08, 0x18},
{0x31, 0x22, 0x16, 0x05, 0x90, 0x71, 0x00, 0x13},
{0x21, 0x61, 0x1d, 0x07, 0x82, 0x80, 0x10, 0x17},
{0x23, 0x21, 0x2d, 0x16, 0xc0, 0x70, 0x07, 0x07},
{0x61, 0x61, 0x1b, 0x06, 0x64, 0x65, 0x10, 0x17},
{0x61, 0x61, 0x0c, 0x18, 0x85, 0xf0, 0x70, 0x07},
{0x23, 0x01, 0x07, 0x11, 0xf0, 0xa4, 0x00, 0x22},
{0x97, 0xc1, 0x24, 0x07, 0xff, 0xf8, 0x22, 0x12},
{0x61, 0x10, 0x0c, 0x05, 0xf2, 0xf4, 0x40, 0x44},
{0x01, 0x01, 0x55, 0x03, 0xf3, 0x92, 0xf3, 0xf3},
{0x61, 0x41, 0x89, 0x03, 0xf1, 0xf4, 0xf0, 0x13},
};
const uint8 YM2413::rhythmTonesOPLL[3][8] = {
{0x01, 0x01, 0x16, 0x00, 0xfd, 0xf8, 0x2f, 0x6d},
{0x01, 0x01, 0x00, 0x00, 0xd8, 0xd8, 0xf9, 0xf8},
{0x05, 0x01, 0x00, 0x00, 0xf8, 0xba, 0x49, 0x55},
};
/* these tables were extracted from the VRC7 debug mode: likely inaccurate for the YM2413 */
const uint8 YM2413::melodicTonesVRC7[15][8] = {
{0x03, 0x21, 0x05, 0x06, 0xe8, 0x81, 0x42, 0x27}, //1: violin
{0x13, 0x41, 0x14, 0x0d, 0xd8, 0xf6, 0x23, 0x12}, //2: guitar
{0x11, 0x11, 0x08, 0x08, 0xfa, 0xb2, 0x20, 0x12}, //3: piano
{0x31, 0x61, 0x0c, 0x07, 0xa8, 0x64, 0x61, 0x27}, //4: flute
{0x32, 0x21, 0x1e, 0x06, 0xe1, 0x76, 0x01, 0x28}, //5: clarinet
{0x02, 0x01, 0x06, 0x00, 0xa3, 0xe2, 0xf4, 0xf4}, //6: oboe
{0x21, 0x61, 0x1d, 0x07, 0x82, 0x81, 0x11, 0x07}, //7: trumpet
{0x23, 0x21, 0x22, 0x17, 0xa2, 0x72, 0x01, 0x17}, //8: organ
{0x35, 0x11, 0x25, 0x00, 0x40, 0x73, 0x72, 0x01}, //9: horn
{0xb5, 0x01, 0x0f, 0x0f, 0xa8, 0xa5, 0x51, 0x02}, //a: synthesizer
{0x17, 0xc1, 0x24, 0x07, 0xf8, 0xf8, 0x22, 0x12}, //b: harpischord
{0x71, 0x23, 0x11, 0x06, 0x65, 0x74, 0x18, 0x16}, //c: vibraphone
{0x01, 0x02, 0xd3, 0x05, 0xc9, 0x95, 0x03, 0x02}, //d: synthesizer bass
{0x61, 0x63, 0x0c, 0x00, 0x94, 0xc0, 0x33, 0xf6}, //e: acoustic bass
{0x21, 0x72, 0x0d, 0x00, 0xc1, 0xd5, 0x56, 0x06}, //f: electric guitar
};
const uint8 YM2413::rhythmTonesVRC7[3][8] = {
{0x01, 0x01, 0x18, 0x0f, 0xdf, 0xf8, 0x6a, 0x6d}, //7, 13/16: bass drum
{0x01, 0x01, 0x00, 0x00, 0xc8, 0xd8, 0xa7, 0x68}, //8, 14/17: hihat, snare drum
{0x05, 0x01, 0x00, 0x00, 0xf8, 0xaa, 0x59, 0x55}, //9, 15/18: tomtom, top cymbal
};
uint13 YM2413::sinTable[1 << 10];
int12 YM2413::expTable[1 << 9];
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auto YM2413::address(uint8 data) -> void {
io.address = data;
}
auto YM2413::write(uint8 data) -> void {
uint4 index = io.address.bit(0,3) % 9;
auto& voice = voices[index];
if(io.address >= 0x00 && io.address <= 0x07) {
customTone[io.address] = data;
for(uint n : range(9)) {
if(voices[n].tone == 0) reload(n);
}
return;
}
if(io.address == 0x0e) {
if(io.isVRC7) return;
if(io.rhythmMode != data.bit(5)) {
io.rhythmMode = data.bit(5);
for(uint n : range(9)) reload(n);
}
if(io.rhythmMode) {
hihat.trigger(data.bit(0));
cymbal.trigger(data.bit(1));
tomtom.trigger(data.bit(2));
snare.trigger(data.bit(3));
bass.carrier.trigger(data.bit(4));
}
return;
}
if(io.address == 0x0f) {
//test register is currently unemulated
return;
}
if(io.address >= 0x10 && io.address <= 0x1f) { //0x19+ mirrors 0x10+
if(io.isVRC7 && index >= 6) return;
voice.fnumber.bit(0,7) = data;
voice.update();
return;
}
if(io.address >= 0x20 && io.address <= 0x2f) { //0x29+ mirrors 0x20+
if(io.isVRC7 && index >= 6) return;
voice.fnumber.bit(8) = data.bit(0);
voice.block = data.bit(1,3);
uint1 keyOn = data.bit(4);
uint1 sustainOn = data.bit(5);
voice.update();
voice.carrier.trigger(keyOn, sustainOn);
return;
}
if(io.address >= 0x30 && io.address <= 0x3f) { //0x39+ mirrors 0x30+
if(io.isVRC7 && index >= 6) return;
voice.level = data.bit(0,3);
voice.tone = data.bit(4,7);
if(io.rhythmMode && index >= 6) voice.update();
else if(voice.tone) voice.update(melodicTones[voice.tone - 1]);
else voice.update(customTone);
return;
}
}
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auto YM2413::Operator::releaseRate() const -> uint4 {
if(state == Trigger) return 13;
if(state == Attack) return attack;
if(state == Decay) return decay;
if(state == Sustain) return sustainable ? (uint4)0 : release;
// state == Release
if(!audible) return 0; //should never happen
if(sustainOn) return 5; //carrier only
return sustainable ? release : (uint4)7;
}
auto YM2413::Operator::update(maybe<uint> updateState) -> void {
if(updateState) state = updateState();
auto baseRate = releaseRate();
auto ksr = 2 * block + fnumber.bit(8) >> (scaleRate ? 0 : 2);
rate = min(60, baseRate ? 4 * baseRate + ksr : 0);
divider = max(state == Attack ? 2 : 0, 13 - rate / 4);
sequence = envelopeSteps[rate < 48 ? rate % 4 : rate - 44][state == Attack ? 0 : 1];
auto ksl = levelScaling[fnumber.bit(5,8)] + 8 * block - 56;
level = totalLevel;
level += max(0, scaleLevel ? ksl : 0) >> 3 - scaleLevel;
auto f = fnumber.bit(6,8);
long m = multiple;
long lfo[8]{0, -f/2, -f, -f/2, 0, +f/2, +f, +f/2};
m += (m == 14) - (m == 13 || m == 11); //unimplemented; maps to 15, 12, or 10
m = max(1, 2 * m); //0 => 1/2, which truncates fnumber bit 0
for(uint n : range(8)) {
pitch[n] = (fnumber + lfo[n]) * m / 2 << block;
}
}
auto YM2413::Operator::synchronize(uint1 hard, maybe<Operator&> modulator) -> void {
if(state == Trigger && envelope.bit(2,6) == 31) {
update(Attack);
if(rate >= 60) update(Decay), envelope = 0;
if(hard) phase = 0;
if(modulator) {
modulator->update(Attack);
if(modulator->rate >= 60) modulator->update(Decay), modulator->envelope = 0;
if(hard) modulator->phase = 0;
}
}
if(state == Attack && envelope == 0x00) update(Decay);
if(state == Decay && envelope >= sustain << 3) update(Sustain);
if(modulator) modulator->synchronize(hard);
}
//only carriers (never modulators) call trigger()
auto YM2413::Operator::trigger(uint1 key, uint1 sustain) -> void {
sustainOn = sustain;
if(keyOn == key) return;
keyOn = key;
update(keyOn ? Trigger : Release);
}
auto YM2413::Operator::clock(natural clock, integer offset, integer modulation) -> int12 {
uint14 y = YM2413::sinTable[uint10(offset + modulation)];
if(waveform & ~y.bit(0)) y = sinTable[0];
auto w = clock / 64 % 210 * tremolo;
auto lfo = (w < 105 ? w : 210 - w) >> 3;
y += envelope << 4 + 1;
y += level << 5 + 1;
y += lfo << 4 + 1;
prior = output;
output = expTable[y.bit(0,8)] * 1L >> y.bit(9,13);
phase += pitch[clock / 1024 % 8 * vibrato];
auto lsbs = divider ? clock.bit(0, divider - 1) : 0;
if(rate && (state == Attack ? lsbs & -4 : lsbs) == 0) {
natural msbs = uint4(clock >> divider);
integer step = uint4(sequence << 4 * msbs >> 60);
if(state == Attack) step = ~envelope * step >> 4;
envelope = max(0x00, min(0x7f, envelope + step));
}
return output;
}
@@ -1,55 +0,0 @@
auto YM2413::serialize(serializer& s) -> void {
//melodicTones and rhythmTones are not serialized here:
//they are reloaded during YM2413::power()
s.array(customTone);
for(auto& voice : voices) voice.serialize(s);
s.integer(io.clock);
s.integer(io.address);
s.integer(io.rhythmMode);
s.integer(io.noise);
s.integer(io.isVRC7);
}
auto YM2413::Voice::serialize(serializer& s) -> void {
s.integer(tone);
s.integer(fnumber);
s.integer(block);
s.integer(level);
s.integer(feedback);
modulator.serialize(s);
carrier.serialize(s);
}
auto YM2413::Operator::serialize(serializer& s) -> void {
s.integer(slot);
s.integer(keyOn);
s.integer(sustainOn);
s.integer(multiple);
s.integer(scaleRate);
s.integer(sustainable);
s.integer(vibrato);
s.integer(tremolo);
s.integer(scaleLevel);
s.integer(waveform);
s.integer(attack);
s.integer(decay);
s.integer(sustain);
s.integer(release);
s.integer(totalLevel);
s.integer(audible);
s.integer(state);
s.integer(rate);
s.integer(divider);
s.integer(sequence);
s.integer(envelope);
s.integer(level);
s.integer(fnumber);
s.integer(block);
s.array(pitch);
s.integer(phase);
s.integer(output);
s.integer(prior);
}
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auto YM2413::Voice::update(const uint8* data) -> void {
if(data) {
modulator.multiple = data[0].bit(0,3);
modulator.scaleRate = data[0].bit(4);
modulator.sustainable = data[0].bit(5);
modulator.vibrato = data[0].bit(6);
modulator.tremolo = data[0].bit(7);
carrier.multiple = data[1].bit(0,3);
carrier.scaleRate = data[1].bit(4);
carrier.sustainable = data[1].bit(5);
carrier.vibrato = data[1].bit(6);
carrier.tremolo = data[1].bit(7);
modulator.totalLevel = data[2].bit(0,5);
modulator.scaleLevel.bit(1) = data[2].bit(6);
modulator.scaleLevel.bit(0) = data[2].bit(7); //bits swapped
feedback = data[3].bit(0,2);
modulator.waveform = data[3].bit(3);
carrier.waveform = data[3].bit(4);
//unused = data[3].bit(5);
carrier.scaleLevel.bit(1) = data[3].bit(6);
carrier.scaleLevel.bit(0) = data[3].bit(7); //bits swapped
modulator.decay = data[4].bit(0,3);
modulator.attack = data[4].bit(4,7);
carrier.decay = data[5].bit(0,3);
carrier.attack = data[5].bit(4,7);
modulator.release = data[6].bit(0,3);
modulator.sustain = data[6].bit(4,7);
carrier.release = data[7].bit(0,3);
carrier.sustain = data[7].bit(4,7);
}
modulator.block = block;
modulator.fnumber = fnumber;
if(modulator.audible) modulator.totalLevel = tone << 2;
modulator.update();
carrier.block = block;
carrier.fnumber = fnumber;
carrier.totalLevel = level << 2;
carrier.update();
}
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#include <emulator/emulator.hpp>
#include "ym2413.hpp"
namespace ares {
#include "constants.cpp"
#include "operator.cpp"
#include "voice.cpp"
#include "io.cpp"
#include "serialization.cpp"
auto YM2413::clock() -> double {
auto melody = 0;
auto rhythm = 0;
auto mask = -(1 << 12 - 9);
for(uint index : range(io.rhythmMode ? 6 : 9)) {
auto& voice = voices[index];
auto input = voice.modulator.output + voice.modulator.prior >> 8 - voice.feedback;
voice.modulator.clock(io.clock, voice.modulator.phase >> 9, voice.feedback ? input : 0);
voice.carrier.clock(io.clock, voice.carrier.phase >> 9, voice.modulator.output << 1);
voice.carrier.synchronize(true, voice.modulator);
melody += mask & voice.carrier.output;
}
if(io.rhythmMode) {
auto metallic = [](auto a, auto b) {
return (a.bit(16) ^ a.bit(11)) | a.bit(12) | b.bit(14) | b.bit(12);
};
auto noise = io.noise.bit(0);
auto m = metallic(hihat.phase, cymbal.phase);
auto input = bass.modulator.output + bass.modulator.prior >> 8 - bass.feedback;
bass.modulator.clock(io.clock, bass.modulator.phase >> 9, bass.feedback ? input : 0);
bass.carrier.clock(io.clock, bass.carrier.phase >> 9, bass.modulator.output << 1);
bass.carrier.synchronize(true, bass.modulator);
rhythm += mask & bass.carrier.output;
rhythm += mask & hihat.clock(io.clock, m << 9 | (m ^ noise ? 52 : 208));
rhythm += mask & tomtom.clock(io.clock, tomtom.phase >> 9);
rhythm += mask & snare.clock(io.clock, 1 << snare.phase.bit(17) + 8 ^ noise << 8);
rhythm += mask & cymbal.clock(io.clock, m << 9 | 256);
hihat.synchronize(false);
snare.synchronize(true);
tomtom.synchronize(true);
cymbal.synchronize(false);
}
auto mix = melody + 2 * rhythm;
io.noise = io.noise >> 1 ^ io.noise.bit(0) * (1 << 22 | 1 << 8 | 1 << 7 | 1 << 0);
if(++io.clock == 210 << 12) io.clock -= 210 << 12;
return mix / 32768.0 * 4.0;
}
auto YM2413::reload(uint4 index) -> void {
auto& voice = voices[index];
voice.modulator.audible = io.rhythmMode && index > 6;
voice.carrier.audible = true;
if(io.rhythmMode && index >= 6) voice.update(rhythmTones[index - 6]);
else if(voice.tone) voice.update(melodicTones[voice.tone - 1]);
else voice.update(customTone);
}
auto YM2413::power(bool isVRC7) -> void {
if(isVRC7) {
memory::copy(melodicTones, sizeof(melodicTones), melodicTonesVRC7, sizeof(melodicTonesVRC7));
memory::copy( rhythmTones, sizeof( rhythmTones), rhythmTonesVRC7, sizeof(rhythmTonesVRC7));
} else {
memory::copy(melodicTones, sizeof(melodicTones), melodicTonesOPLL, sizeof(melodicTonesOPLL));
memory::copy( rhythmTones, sizeof( rhythmTones), rhythmTonesOPLL, sizeof(rhythmTonesOPLL));
}
for(auto& byte : customTone) byte = 0x00;
if(!sinTable[0] || !expTable[0])
for(auto x : range(0x100)) {
//10.9 fixed point phases
auto y = sin((2 * x + 1) * Math::Pi / 1024.0); //0x400 units to 2pi radians
auto z = -(1 << 8) * log(y) / log(2); //convert to -6 dB/256 units
auto s = (1 << 10) * pow(2, uint8(~x) / 256.0); //0x7fa .. 0x400
sinTable[0x000 + x] = sinTable[0x1ff - x] = uint(z + 0.5) * 2 + 1;
sinTable[0x200 + x] = sinTable[0x3ff - x] = uint(z + 0.5) * 2 + 0;
expTable[x * 2 + 1] = +uint(s + 0.5);
expTable[x * 2 + 0] = ~uint(s + 0.5);
}
io = {};
io.isVRC7 = isVRC7;
for(uint n : range(9)) {
voices[n] = {};
reload(n);
}
for(uint n : range(3)) {
voices[3 * n + 0].modulator.slot = 1 + 6 * n;
voices[3 * n + 1].modulator.slot = 2 + 6 * n;
voices[3 * n + 2].modulator.slot = 3 + 6 * n;
voices[3 * n + 0].carrier.slot = 4 + 6 * n;
voices[3 * n + 1].carrier.slot = 5 + 6 * n;
voices[3 * n + 2].carrier.slot = 6 + 6 * n;
}
}
}
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#pragma once
namespace ares {
//Yamaha YM2413 (OPLL)
//Author: Talarubi
struct YM2413 {
//ym2413.cpp
auto clock() -> double;
auto reload(uint4 voice) -> void;
auto power(bool isVRC7 = false) -> void;
//io.cpp
auto address(uint8 data) -> void;
auto write(uint8 data) -> void;
//serialization.cpp
auto serialize(serializer&) -> void;
protected:
static const int8 levelScaling[16];
static const uint64 envelopeSteps[17][2];
static const uint8 melodicTonesOPLL[15][8];
static const uint8 rhythmTonesOPLL[3][8];
static const uint8 melodicTonesVRC7[15][8];
static const uint8 rhythmTonesVRC7[3][8];
static uint13 sinTable[1 << 10];
static int12 expTable[1 << 9];
uint8 melodicTones[15][8];
uint8 rhythmTones[3][8];
uint8 customTone[8];
enum : uint { Trigger, Attack, Decay, Sustain, Release };
struct Operator {
//operator.cpp
auto releaseRate() const -> uint4;
auto update(maybe<uint> state = {}) -> void;
auto synchronize(uint1 hard, maybe<Operator&> modulator = {}) -> void;
auto trigger(uint1 key, uint1 sustain = 0) -> void;
auto clock(natural clock, integer offset, integer modulation = 0) -> int12;
//serialization.cpp
auto serialize(serializer&) -> void;
uint5 slot; //1-18
uint1 keyOn;
uint1 sustainOn;
uint4 multiple;
uint1 scaleRate;
uint1 sustainable;
uint1 vibrato;
uint1 tremolo;
uint2 scaleLevel;
uint1 waveform;
uint4 attack;
uint4 decay;
uint4 sustain;
uint4 release;
uint6 totalLevel;
uint1 audible;
//envelope generator
uint3 state = Release;
uint7 rate;
uint4 divider;
uint64 sequence;
uint7 envelope = 0x7f;
uint7 level;
//phase generator
uint9 fnumber;
uint3 block;
uint19 pitch[8];
uint19 phase;
//output
int12 output;
int12 prior;
};
struct Voice {
//voice.cpp
auto update(const uint8* data = nullptr) -> void;
//serialization.cpp
auto serialize(serializer&) -> void;
uint4 tone;
uint9 fnumber;
uint3 block;
uint4 level;
uint3 feedback;
Operator modulator;
Operator carrier;
} voices[9];
struct IO {
uint32 clock;
uint8 address;
uint1 rhythmMode;
uint23 noise = 1;
uint1 isVRC7 = 0;
} io;
Voice& bass = voices[6];
Operator& hihat = voices[7].modulator;
Operator& snare = voices[7].carrier;
Operator& tomtom = voices[8].modulator;
Operator& cymbal = voices[8].carrier;
};
}
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#include <emulator/emulator.hpp>
#include "m93lcx6.hpp"
namespace ares {
#include "serialization.cpp"
M93LCx6::operator bool() const {
return size;
}
auto M93LCx6::reset() -> void {
size = 0;
}
auto M93LCx6::allocate(uint size, uint width, uint8 fill) -> bool {
if(size != 128 && size != 256 && size != 512 && size != 1024 && size != 2048) return false;
if(width != 8 && width != 16) return false;
this->size = size;
this->width = width;
for(auto& byte : data) byte = fill;
input.addressLength = 0;
input.dataLength = width;
//note: the 93LC56 and 93LC76 have an extra dummy address bit
if(size == 128) input.addressLength = width == 16 ? 6 : 7; //93LC46
if(size == 256) input.addressLength = width == 16 ? 8 : 9; //93LC56
if(size == 512) input.addressLength = width == 16 ? 8 : 9; //93LC66
if(size == 1024) input.addressLength = width == 16 ? 10 : 11; //93LC76
if(size == 2048) input.addressLength = width == 16 ? 10 : 11; //93LC86
return true;
}
//used externally to program initial state values for uninitialized EEPROMs
auto M93LCx6::program(uint11 address, uint8 value) -> void {
data[address] = value;
}
//1ms frequency
auto M93LCx6::clock() -> void {
//set during programming commands
if(busy) busy--;
}
auto M93LCx6::power() -> void {
//writable = 0;
busy = 0;
input.flush();
output.flush();
}
auto M93LCx6::edge() -> void {
//wait for start
if(!input.start()) return;
uint start = *input.start();
//start bit must be set
if(start != 1) return input.flush();
//wait for opcode
if(!input.opcode()) return;
uint opcode = *input.opcode();
//wait for address
if(!input.address()) return;
if(opcode == 0b00) {
auto mode = *input.mode();
if(mode == 0b00) return writeDisable();
if(mode == 0b01) return writeAll();
if(mode == 0b10) return eraseAll();
if(mode == 0b11) return writeEnable();
}
if(opcode == 0b01) return write();
if(opcode == 0b10) return read();
if(opcode == 0b11) return erase();
}
//
auto M93LCx6::read() -> void {
uint address = *input.address() << (width == 16) & size - 1;
output.flush();
for(uint4 index : range(width)) {
output.write(data[address + index.bit(3)].bit(index.bit(0,2)));
}
output.write(0); //reads have an extra dummy data bit
}
auto M93LCx6::write() -> void {
if(!input.data()) return; //wait for data
if(!writable) return input.flush();
uint address = *input.address() << (width == 16) & size - 1;
for(uint4 index : range(width)) {
data[address + index.bit(3)].bit(index.bit(0,2)) = input.read();
}
busy = 4; //milliseconds
return input.flush();
}
auto M93LCx6::erase() -> void {
if(!writable) return input.flush();
uint address = *input.address() << (width == 16) & size - 1;
for(uint4 index : range(width)) {
data[address + index.bit(3)].bit(index.bit(0,2)) = 1;
}
busy = 4; //milliseconds
return input.flush();
}
auto M93LCx6::writeAll() -> void {
if(!input.data()) return; //wait for data
if(!writable) return input.flush();
auto word = *input.data();
for(uint address = 0; address < 512;) {
data[address++] = uint8(word >> (width == 16 ? 8 : 0));
data[address++] = uint8(word >> 0);
}
busy = 16; //milliseconds
return input.flush();
}
auto M93LCx6::eraseAll() -> void {
if(!writable) return input.flush();
for(auto& byte : data) byte = 0xff;
busy = 8; //milliseconds
return input.flush();
}
auto M93LCx6::writeEnable() -> void {
writable = true;
return input.flush();
}
auto M93LCx6::writeDisable() -> void {
writable = false;
return input.flush();
}
//
auto M93LCx6::ShiftRegister::flush() -> void {
value = 0;
count = 0;
}
auto M93LCx6::ShiftRegister::edge() -> uint1 {
return value.bit(0);
}
auto M93LCx6::ShiftRegister::read() -> uint1 {
uint1 bit = value.bit(0);
value >>= 1;
count--;
return bit;
}
auto M93LCx6::ShiftRegister::write(uint1 bit) -> void {
value <<= 1;
value.bit(0) = bit;
count++;
}
//
auto M93LCx6::InputShiftRegister::start() -> maybe<uint1> {
if(count < 1) return {};
return {value >> count - 1 & 1};
}
auto M93LCx6::InputShiftRegister::opcode() -> maybe<uint2> {
if(count < 1 + 2) return {};
return {value >> count - 3 & 3};
}
auto M93LCx6::InputShiftRegister::mode() -> maybe<uint2> {
if(count < 1 + 2 + addressLength) return {};
return {value >> count - 5 & 3};
}
auto M93LCx6::InputShiftRegister::address() -> maybe<uint11> {
if(count < 1 + 2 + addressLength) return {};
return {value >> count - (3 + addressLength) & (1 << addressLength) - 1};
}
auto M93LCx6::InputShiftRegister::data() -> maybe<uint16> {
if(count < 1 + 2 + addressLength + dataLength) return {};
return {value >> count - (3 + addressLength + dataLength) & (1 << dataLength) - 1};
}
auto M93LCx6::InputShiftRegister::increment() -> void {
value.bit(0, addressLength - 1)++;
}
}
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#pragma once
namespace ares {
//Microchip 93LCx6
// 93LC46 => 1024 cells => 128 x 8-bit or 64 x 16-bit
// 93LC56 => 2048 cells => 256 x 8-bit or 128 x 16-bit
// 93LC66 => 4096 cells => 512 x 8-bit or 256 x 16-bit
// 93LC76 => 8192 cells => 1024 x 8-bit or 512 x 16-bit
// 93LC86 => 16384 cells => 2048 x 8-bit or 1024 x 16-bit
struct M93LCx6 {
//m93lcx6.cpp
explicit operator bool() const;
auto reset() -> void;
auto allocate(uint size, uint width, uint8 fill = 0xff) -> bool;
auto program(uint11 address, uint8 data) -> void;
auto clock() -> void;
auto power() -> void;
auto edge() -> void;
//chip commands
auto read() -> void;
auto write() -> void;
auto erase() -> void;
auto writeAll() -> void;
auto eraseAll() -> void;
auto writeEnable() -> void;
auto writeDisable() -> void;
//serialization.cpp
auto serialize(serializer&) -> void;
//it is awkward no matter if data is uint1[bits], uint8[bytes], or uint16[words]
uint8 data[2048]; //uint8 was chosen solely for easier serialization and saving
uint size; //in bytes
uint width; //8-bit (ORG=0) or 16-bit (ORG=1) configuration
boolean writable; //EWEN, EWDS
uint busy; //busy cycles in milliseconds remaining for programming (write) operations to complete
struct ShiftRegister {
auto flush() -> void;
auto edge() -> uint1;
auto read() -> uint1;
auto write(uint1 data) -> void;
uint32 value;
uint32 count;
};
struct InputShiftRegister : ShiftRegister {
auto start() -> maybe<uint1>;
auto opcode() -> maybe<uint2>;
auto mode() -> maybe<uint2>;
auto address() -> maybe<uint11>;
auto data() -> maybe<uint16>;
auto increment() -> void;
//serialization.cpp
auto serialize(serializer&) -> void;
uint32 addressLength;
uint32 dataLength;
} input;
struct OutputShiftRegister : ShiftRegister {
//serialization.cpp
auto serialize(serializer&) -> void;
} output;
};
}
@@ -1,21 +0,0 @@
auto M93LCx6::serialize(serializer& s) -> void {
s.array(data);
s.integer(size);
s.integer(width);
s.boolean(writable);
s.integer(busy);
input.serialize(s);
output.serialize(s);
}
auto M93LCx6::InputShiftRegister::serialize(serializer& s) -> void {
s.integer(value);
s.integer(count);
s.integer(addressLength);
s.integer(dataLength);
}
auto M93LCx6::OutputShiftRegister::serialize(serializer& s) -> void {
s.integer(value);
s.integer(count);
}
@@ -1,19 +0,0 @@
auto X24C01::serialize(serializer& s) -> void {
s.array(memory);
s.integer(clock.lo);
s.integer(clock.hi);
s.integer(clock.fall);
s.integer(clock.rise);
s.integer(clock.line);
s.integer(data.lo);
s.integer(data.hi);
s.integer(data.fall);
s.integer(data.rise);
s.integer(data.line);
s.integer((uint&)mode);
s.integer(counter);
s.integer(address);
s.integer(input);
s.integer(output);
s.integer(line);
}
-128
View File
@@ -1,128 +0,0 @@
#include <emulator/emulator.hpp>
#include "x24c01.hpp"
namespace ares {
#include "serialization.cpp"
auto X24C01::reset() -> void {
clock = {};
data = {};
mode = Mode::Idle;
counter = 0;
address = 0;
input = 0;
output = 0;
line = 1;
}
auto X24C01::read() -> uint1 {
return line;
}
auto X24C01::write(uint1 scl, uint1 sda) -> void {
clock.write(scl);
data.write(sda);
if(clock.hi && data.fall) {
line = 1;
mode = Mode::Address;
counter = 0;
return;
}
if(clock.hi && data.rise) {
line = 1;
mode = Mode::Idle;
return;
}
if(clock.rise) {
if(mode == Mode::Address && counter < 8) {
address = data.line << 7 | address >> 1;
counter++;
return;
}
if(mode == Mode::Read && counter < 8) {
line = output & 1;
output >>= 1;
counter++;
return;
}
if(mode == Mode::Write && counter < 8) {
input = data.line << 7 | input >> 1;
counter++;
return;
}
if(mode == Mode::AddressAcknowledge) {
line = 0;
return;
}
if(mode == Mode::ReadAcknowledge) {
line = 0;
return;
}
if(mode == Mode::WriteAcknowledge) {
line = 0;
return;
}
}
if(clock.fall) {
if(mode == Mode::Address && counter == 8) {
line = 1;
mode = Mode::AddressAcknowledge;
return;
}
if(mode == Mode::Read && counter == 8) {
mode = Mode::ReadAcknowledge;
address.bit(1,7)++;
counter = 0;
return;
}
if(mode == Mode::Write && counter == 8) {
memory[address & 0x7f] = input;
mode = Mode::WriteAcknowledge;
return;
}
if(mode == Mode::AddressAcknowledge) {
mode = address & 0x80 ? Mode::Read : Mode::Write;
output = memory[address & 0x7f];
counter = 0;
return;
}
if(mode == Mode::ReadAcknowledge) {
mode = Mode::Read;
if(!data.line) mode = Mode::Idle;
return;
}
if(mode == Mode::WriteAcknowledge) {
mode = Mode::Idle;
return;
}
}
}
auto X24C01::erase(uint8 fill) -> void {
for(auto& byte : memory) byte = fill;
}
auto X24C01::Line::write(uint1 data) -> void {
lo = !line && !data;
hi = line && data;
fall = line && !data;
rise = !line && data;
line = data;
}
}
-48
View File
@@ -1,48 +0,0 @@
#pragma once
namespace ares {
//X24C01 => 1024 cells => 128 x 8-bit
struct X24C01 {
//x24c01.cpp
auto reset() -> void;
auto read() -> uint1;
auto write(uint1 clock, uint1 data) -> void;
auto erase(uint8 fill = 0xff) -> void;
//serialization.cpp
auto serialize(serializer&) -> void;
uint8 memory[128];
private:
enum class Mode : uint {
Idle,
Address, AddressAcknowledge,
Read, ReadAcknowledge,
Write, WriteAcknowledge,
};
struct Line {
//x24c01.cpp
auto write(uint1 data) -> void;
uint1 lo;
uint1 hi;
uint1 fall;
uint1 rise;
uint1 line;
};
Line clock;
Line data;
Mode mode;
uint8 counter;
uint8 address;
uint8 input;
uint8 output;
uint1 line;
};
}
@@ -1,96 +0,0 @@
auto ARM7TDMI::ADD(uint32 source, uint32 modify, bool carry) -> uint32 {
uint32 result = source + modify + carry;
if(cpsr().t || opcode.bit(20)) {
uint32 overflow = ~(source ^ modify) & (source ^ result);
cpsr().v = 1 << 31 & (overflow);
cpsr().c = 1 << 31 & (overflow ^ source ^ modify ^ result);
cpsr().z = result == 0;
cpsr().n = result.bit(31);
}
return result;
}
auto ARM7TDMI::ASR(uint32 source, uint8 shift) -> uint32 {
carry = cpsr().c;
if(shift == 0) return source;
carry = shift > 32 ? source & 1 << 31 : source & 1 << shift - 1;
source = shift > 31 ? (int32)source >> 31 : (int32)source >> shift;
return source;
}
auto ARM7TDMI::BIT(uint32 result) -> uint32 {
if(cpsr().t || opcode.bit(20)) {
cpsr().c = carry;
cpsr().z = result == 0;
cpsr().n = result.bit(31);
}
return result;
}
auto ARM7TDMI::LSL(uint32 source, uint8 shift) -> uint32 {
carry = cpsr().c;
if(shift == 0) return source;
carry = shift > 32 ? 0 : source & 1 << 32 - shift;
source = shift > 31 ? 0 : source << shift;
return source;
}
auto ARM7TDMI::LSR(uint32 source, uint8 shift) -> uint32 {
carry = cpsr().c;
if(shift == 0) return source;
carry = shift > 32 ? 0 : source & 1 << shift - 1;
source = shift > 31 ? 0 : source >> shift;
return source;
}
auto ARM7TDMI::MUL(uint32 product, uint32 multiplicand, uint32 multiplier) -> uint32 {
idle();
if(multiplier >> 8 && multiplier >> 8 != 0xffffff) idle();
if(multiplier >> 16 && multiplier >> 16 != 0xffff) idle();
if(multiplier >> 24 && multiplier >> 24 != 0xff) idle();
product += multiplicand * multiplier;
if(cpsr().t || opcode.bit(20)) {
cpsr().z = product == 0;
cpsr().n = product.bit(31);
}
return product;
}
auto ARM7TDMI::ROR(uint32 source, uint8 shift) -> uint32 {
carry = cpsr().c;
if(shift == 0) return source;
if(shift &= 31) source = source << 32 - shift | source >> shift;
carry = source & 1 << 31;
return source;
}
auto ARM7TDMI::RRX(uint32 source) -> uint32 {
carry = source.bit(0);
return cpsr().c << 31 | source >> 1;
}
auto ARM7TDMI::SUB(uint32 source, uint32 modify, bool carry) -> uint32 {
return ADD(source, ~modify, carry);
}
auto ARM7TDMI::TST(uint4 mode) -> bool {
switch(mode) {
case 0: return cpsr().z == 1; //EQ (equal)
case 1: return cpsr().z == 0; //NE (not equal)
case 2: return cpsr().c == 1; //CS (carry set)
case 3: return cpsr().c == 0; //CC (carry clear)
case 4: return cpsr().n == 1; //MI (negative)
case 5: return cpsr().n == 0; //PL (positive)
case 6: return cpsr().v == 1; //VS (overflow)
case 7: return cpsr().v == 0; //VC (no overflow)
case 8: return cpsr().c == 1 && cpsr().z == 0; //HI (unsigned higher)
case 9: return cpsr().c == 0 || cpsr().z == 1; //LS (unsigned lower or same)
case 10: return cpsr().n == cpsr().v; //GE (signed greater than or equal)
case 11: return cpsr().n != cpsr().v; //LT (signed less than)
case 12: return cpsr().z == 0 && cpsr().n == cpsr().v; //GT (signed greater than)
case 13: return cpsr().z == 1 || cpsr().n != cpsr().v; //LE (signed less than or equal)
case 14: return true; //AL (always)
case 15: return false; //NV (never)
}
unreachable;
}
@@ -1,30 +0,0 @@
#include <emulator/emulator.hpp>
#include "arm7tdmi.hpp"
namespace ares {
#include "registers.cpp"
#include "memory.cpp"
#include "algorithms.cpp"
#include "instruction.cpp"
#include "instructions-arm.cpp"
#include "instructions-thumb.cpp"
#include "serialization.cpp"
#include "disassembler.cpp"
ARM7TDMI::ARM7TDMI() {
armInitialize();
thumbInitialize();
}
auto ARM7TDMI::power() -> void {
processor = {};
processor.r15.modify = [&] { pipeline.reload = true; };
pipeline = {};
carry = 0;
irq = 0;
cpsr().f = 1;
exception(PSR::SVC, 0x00);
}
}
@@ -1,285 +0,0 @@
//ARMv4 (ARM7TDMI)
#pragma once
namespace ares {
struct ARM7TDMI {
enum : uint {
Nonsequential = 1 << 0, //N cycle
Sequential = 1 << 1, //S cycle
Prefetch = 1 << 2, //instruction fetch
Byte = 1 << 3, // 8-bit access
Half = 1 << 4, //16-bit access
Word = 1 << 5, //32-bit access
Load = 1 << 6, //load operation
Store = 1 << 7, //store operation
Signed = 1 << 8, //sign-extend
};
virtual auto step(uint clocks) -> void = 0;
virtual auto sleep() -> void = 0;
virtual auto get(uint mode, uint32 address) -> uint32 = 0;
virtual auto set(uint mode, uint32 address, uint32 word) -> void = 0;
//arm7tdmi.cpp
ARM7TDMI();
auto power() -> void;
//registers.cpp
struct GPR;
struct PSR;
inline auto r(uint4) -> GPR&;
inline auto cpsr() -> PSR&;
inline auto spsr() -> PSR&;
inline auto privileged() const -> bool;
inline auto exception() const -> bool;
//memory.cpp
auto idle() -> void;
auto read(uint mode, uint32 address) -> uint32;
auto load(uint mode, uint32 address) -> uint32;
auto write(uint mode, uint32 address, uint32 word) -> void;
auto store(uint mode, uint32 address, uint32 word) -> void;
//algorithms.cpp
auto ADD(uint32, uint32, bool) -> uint32;
auto ASR(uint32, uint8) -> uint32;
auto BIT(uint32) -> uint32;
auto LSL(uint32, uint8) -> uint32;
auto LSR(uint32, uint8) -> uint32;
auto MUL(uint32, uint32, uint32) -> uint32;
auto ROR(uint32, uint8) -> uint32;
auto RRX(uint32) -> uint32;
auto SUB(uint32, uint32, bool) -> uint32;
auto TST(uint4) -> bool;
//instruction.cpp
auto fetch() -> void;
auto instruction() -> void;
auto exception(uint mode, uint32 address) -> void;
auto armInitialize() -> void;
auto thumbInitialize() -> void;
//instructions-arm.cpp
auto armALU(uint4 mode, uint4 target, uint4 source, uint32 data) -> void;
auto armMoveToStatus(uint4 field, uint1 source, uint32 data) -> void;
auto armInstructionBranch(int24, uint1) -> void;
auto armInstructionBranchExchangeRegister(uint4) -> void;
auto armInstructionDataImmediate(uint8, uint4, uint4, uint4, uint1, uint4) -> void;
auto armInstructionDataImmediateShift(uint4, uint2, uint5, uint4, uint4, uint1, uint4) -> void;
auto armInstructionDataRegisterShift(uint4, uint2, uint4, uint4, uint4, uint1, uint4) -> void;
auto armInstructionLoadImmediate(uint8, uint1, uint4, uint4, uint1, uint1, uint1) -> void;
auto armInstructionLoadRegister(uint4, uint1, uint4, uint4, uint1, uint1, uint1) -> void;
auto armInstructionMemorySwap(uint4, uint4, uint4, uint1) -> void;
auto armInstructionMoveHalfImmediate(uint8, uint4, uint4, uint1, uint1, uint1, uint1) -> void;
auto armInstructionMoveHalfRegister(uint4, uint4, uint4, uint1, uint1, uint1, uint1) -> void;
auto armInstructionMoveImmediateOffset(uint12, uint4, uint4, uint1, uint1, uint1, uint1, uint1) -> void;
auto armInstructionMoveMultiple(uint16, uint4, uint1, uint1, uint1, uint1, uint1) -> void;
auto armInstructionMoveRegisterOffset(uint4, uint2, uint5, uint4, uint4, uint1, uint1, uint1, uint1, uint1) -> void;
auto armInstructionMoveToRegisterFromStatus(uint4, uint1) -> void;
auto armInstructionMoveToStatusFromImmediate(uint8, uint4, uint4, uint1) -> void;
auto armInstructionMoveToStatusFromRegister(uint4, uint4, uint1) -> void;
auto armInstructionMultiply(uint4, uint4, uint4, uint4, uint1, uint1) -> void;
auto armInstructionMultiplyLong(uint4, uint4, uint4, uint4, uint1, uint1, uint1) -> void;
auto armInstructionSoftwareInterrupt(uint24 immediate) -> void;
auto armInstructionUndefined() -> void;
//instructions-thumb.cpp
auto thumbInstructionALU(uint3, uint3, uint4) -> void;
auto thumbInstructionALUExtended(uint4, uint4, uint2) -> void;
auto thumbInstructionAddRegister(uint8, uint3, uint1) -> void;
auto thumbInstructionAdjustImmediate(uint3, uint3, uint3, uint1) -> void;
auto thumbInstructionAdjustRegister(uint3, uint3, uint3, uint1) -> void;
auto thumbInstructionAdjustStack(uint7, uint1) -> void;
auto thumbInstructionBranchExchange(uint4) -> void;
auto thumbInstructionBranchFarPrefix(int11) -> void;
auto thumbInstructionBranchFarSuffix(uint11) -> void;
auto thumbInstructionBranchNear(int11) -> void;
auto thumbInstructionBranchTest(int8, uint4) -> void;
auto thumbInstructionImmediate(uint8, uint3, uint2) -> void;
auto thumbInstructionLoadLiteral(uint8, uint3) -> void;
auto thumbInstructionMoveByteImmediate(uint3, uint3, uint5, uint1) -> void;
auto thumbInstructionMoveHalfImmediate(uint3, uint3, uint5, uint1) -> void;
auto thumbInstructionMoveMultiple(uint8, uint3, uint1) -> void;
auto thumbInstructionMoveRegisterOffset(uint3, uint3, uint3, uint3) -> void;
auto thumbInstructionMoveStack(uint8, uint3, uint1) -> void;
auto thumbInstructionMoveWordImmediate(uint3, uint3, uint5, uint1) -> void;
auto thumbInstructionShiftImmediate(uint3, uint3, uint5, uint2) -> void;
auto thumbInstructionSoftwareInterrupt(uint8) -> void;
auto thumbInstructionStackMultiple(uint8, uint1, uint1) -> void;
auto thumbInstructionUndefined() -> void;
//serialization.cpp
auto serialize(serializer&) -> void;
//disassembler.cpp
auto disassembleInstruction(maybe<uint32> pc = {}, maybe<boolean> thumb = {}) -> string;
auto disassembleContext() -> string;
struct GPR {
inline operator uint32_t() const { return data; }
inline auto operator=(const GPR& value) -> GPR& { return operator=(value.data); }
inline auto operator=(uint32 value) -> GPR& {
data = value;
if(modify) modify();
return *this;
}
uint32 data;
function<auto () -> void> modify;
};
struct PSR {
enum : uint {
USR = 0x10, //user
FIQ = 0x11, //fast interrupt
IRQ = 0x12, //interrupt
SVC = 0x13, //service
ABT = 0x17, //abort
UND = 0x1b, //undefined
SYS = 0x1f, //system
};
inline operator uint32_t() const {
return m << 0 | t << 5 | f << 6 | i << 7 | v << 28 | c << 29 | z << 30 | n << 31;
}
inline auto operator=(uint32 data) -> PSR& {
m = data.bit(0,4);
t = data.bit(5);
f = data.bit(6);
i = data.bit(7);
v = data.bit(28);
c = data.bit(29);
z = data.bit(30);
n = data.bit(31);
return *this;
}
//serialization.cpp
auto serialize(serializer&) -> void;
uint5 m; //mode
boolean t; //thumb
boolean f; //fiq
boolean i; //irq
boolean v; //overflow
boolean c; //carry
boolean z; //zero
boolean n; //negative
};
struct Processor {
//serialization.cpp
auto serialize(serializer&) -> void;
GPR r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, r13, r14, r15;
PSR cpsr;
struct FIQ {
GPR r8, r9, r10, r11, r12, r13, r14;
PSR spsr;
} fiq;
struct IRQ {
GPR r13, r14;
PSR spsr;
} irq;
struct SVC {
GPR r13, r14;
PSR spsr;
} svc;
struct ABT {
GPR r13, r14;
PSR spsr;
} abt;
struct UND {
GPR r13, r14;
PSR spsr;
} und;
} processor;
struct Pipeline {
//serialization.cpp
auto serialize(serializer&) -> void;
struct Instruction {
uint32 address;
uint32 instruction;
boolean thumb; //not used by fetch stage
};
uint1 reload = 1;
uint1 nonsequential = 1;
Instruction fetch;
Instruction decode;
Instruction execute;
} pipeline;
uint32 opcode;
boolean carry;
boolean irq;
function<void (uint32 opcode)> armInstruction[4096];
function<void ()> thumbInstruction[65536];
//disassembler.cpp
auto armDisassembleBranch(int24, uint1) -> string;
auto armDisassembleBranchExchangeRegister(uint4) -> string;
auto armDisassembleDataImmediate(uint8, uint4, uint4, uint4, uint1, uint4) -> string;
auto armDisassembleDataImmediateShift(uint4, uint2, uint5, uint4, uint4, uint1, uint4) -> string;
auto armDisassembleDataRegisterShift(uint4, uint2, uint4, uint4, uint4, uint1, uint4) -> string;
auto armDisassembleLoadImmediate(uint8, uint1, uint4, uint4, uint1, uint1, uint1) -> string;
auto armDisassembleLoadRegister(uint4, uint1, uint4, uint4, uint1, uint1, uint1) -> string;
auto armDisassembleMemorySwap(uint4, uint4, uint4, uint1) -> string;
auto armDisassembleMoveHalfImmediate(uint8, uint4, uint4, uint1, uint1, uint1, uint1) -> string;
auto armDisassembleMoveHalfRegister(uint4, uint4, uint4, uint1, uint1, uint1, uint1) -> string;
auto armDisassembleMoveImmediateOffset(uint12, uint4, uint4, uint1, uint1, uint1, uint1, uint1) -> string;
auto armDisassembleMoveMultiple(uint16, uint4, uint1, uint1, uint1, uint1, uint1) -> string;
auto armDisassembleMoveRegisterOffset(uint4, uint2, uint5, uint4, uint4, uint1, uint1, uint1, uint1, uint1) -> string;
auto armDisassembleMoveToRegisterFromStatus(uint4, uint1) -> string;
auto armDisassembleMoveToStatusFromImmediate(uint8, uint4, uint4, uint1) -> string;
auto armDisassembleMoveToStatusFromRegister(uint4, uint4, uint1) -> string;
auto armDisassembleMultiply(uint4, uint4, uint4, uint4, uint1, uint1) -> string;
auto armDisassembleMultiplyLong(uint4, uint4, uint4, uint4, uint1, uint1, uint1) -> string;
auto armDisassembleSoftwareInterrupt(uint24) -> string;
auto armDisassembleUndefined() -> string;
auto thumbDisassembleALU(uint3, uint3, uint4) -> string;
auto thumbDisassembleALUExtended(uint4, uint4, uint2) -> string;
auto thumbDisassembleAddRegister(uint8, uint3, uint1) -> string;
auto thumbDisassembleAdjustImmediate(uint3, uint3, uint3, uint1) -> string;
auto thumbDisassembleAdjustRegister(uint3, uint3, uint3, uint1) -> string;
auto thumbDisassembleAdjustStack(uint7, uint1) -> string;
auto thumbDisassembleBranchExchange(uint4) -> string;
auto thumbDisassembleBranchFarPrefix(int11) -> string;
auto thumbDisassembleBranchFarSuffix(uint11) -> string;
auto thumbDisassembleBranchNear(int11) -> string;
auto thumbDisassembleBranchTest(int8, uint4) -> string;
auto thumbDisassembleImmediate(uint8, uint3, uint2) -> string;
auto thumbDisassembleLoadLiteral(uint8, uint3) -> string;
auto thumbDisassembleMoveByteImmediate(uint3, uint3, uint5, uint1) -> string;
auto thumbDisassembleMoveHalfImmediate(uint3, uint3, uint5, uint1) -> string;
auto thumbDisassembleMoveMultiple(uint8, uint3, uint1) -> string;
auto thumbDisassembleMoveRegisterOffset(uint3, uint3, uint3, uint3) -> string;
auto thumbDisassembleMoveStack(uint8, uint3, uint1) -> string;
auto thumbDisassembleMoveWordImmediate(uint3, uint3, uint5, uint1) -> string;
auto thumbDisassembleShiftImmediate(uint3, uint3, uint5, uint2) -> string;
auto thumbDisassembleSoftwareInterrupt(uint8) -> string;
auto thumbDisassembleStackMultiple(uint8, uint1, uint1) -> string;
auto thumbDisassembleUndefined() -> string;
function<string (uint32 opcode)> armDisassemble[4096];
function<string ()> thumbDisassemble[65536];
uint32 _pc;
string _c;
};
}
@@ -1,413 +0,0 @@
static const string _r[] = {
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
"r8", "r9", "r10", "r11", "r12", "sp", "lr", "pc"
};
static const string _conditions[] = {
"eq", "ne", "cs", "cc", "mi", "pl", "vs", "vc",
"hi", "ls", "ge", "lt", "gt", "le", "", "nv",
};
#define _s save ? "s" : ""
#define _move(mode) (mode == 13 || mode == 15)
#define _comp(mode) (mode >= 8 && mode <= 11)
#define _math(mode) (mode <= 7 || mode == 12 || mode == 14)
auto ARM7TDMI::disassembleInstruction(maybe<uint32> pc, maybe<boolean> thumb) -> string {
if(!pc) pc = pipeline.execute.address;
if(!thumb) thumb = cpsr().t;
_pc = pc();
if(!thumb()) {
uint32 opcode = read(Word | Nonsequential, _pc & ~3);
uint12 index = (opcode & 0x0ff00000) >> 16 | (opcode & 0x000000f0) >> 4;
_c = _conditions[opcode >> 28];
return pad(armDisassemble[index](opcode), -40);
} else {
uint16 opcode = read(Half | Nonsequential, _pc & ~1);
return pad(thumbDisassemble[opcode](), -40);
}
}
auto ARM7TDMI::disassembleContext() -> string {
string output;
for(uint n : range(16)) {
output.append(_r[n], ":", hex(r(n), 8L), " ");
}
output.append("cpsr:");
output.append(cpsr().n ? "N" : "n");
output.append(cpsr().z ? "Z" : "z");
output.append(cpsr().c ? "C" : "c");
output.append(cpsr().v ? "V" : "v", "/");
output.append(cpsr().i ? "I" : "i");
output.append(cpsr().f ? "F" : "f");
output.append(cpsr().t ? "T" : "t", "/");
output.append(hex(cpsr().m, 2L));
if(cpsr().m == PSR::USR || cpsr().m == PSR::SYS) return output;
output.append(" spsr:");
output.append(spsr().n ? "N" : "n");
output.append(spsr().z ? "Z" : "z");
output.append(spsr().c ? "C" : "c");
output.append(spsr().v ? "V" : "v", "/");
output.append(spsr().i ? "I" : "i");
output.append(spsr().f ? "F" : "f");
output.append(spsr().t ? "T" : "t", "/");
output.append(hex(spsr().m, 2L));
return output;
}
//
auto ARM7TDMI::armDisassembleBranch
(int24 displacement, uint1 link) -> string {
return {"b", link ? "l" : "", _c, " 0x", hex(_pc + 8 + displacement * 4, 8L)};
}
auto ARM7TDMI::armDisassembleBranchExchangeRegister
(uint4 m) -> string {
return {"bx", _c, " ", _r[m]};
}
auto ARM7TDMI::armDisassembleDataImmediate
(uint8 immediate, uint4 shift, uint4 d, uint4 n, uint1 save, uint4 mode) -> string {
static const string opcode[] = {
"and", "eor", "sub", "rsb", "add", "adc", "sbc", "rsc",
"tst", "teq", "cmp", "cmn", "orr", "mov", "bic", "mvn",
};
uint32 data = immediate >> (shift << 1) | immediate << 32 - (shift << 1);
return {opcode[mode], _c,
_move(mode) ? string{_s, " ", _r[d]} : string{},
_comp(mode) ? string{" ", _r[n]} : string{},
_math(mode) ? string{_s, " ", _r[d], ",", _r[n]} : string{},
",#0x", hex(data, 8L)};
}
auto ARM7TDMI::armDisassembleDataImmediateShift
(uint4 m, uint2 type, uint5 shift, uint4 d, uint4 n, uint1 save, uint4 mode) -> string {
static const string opcode[] = {
"and", "eor", "sub", "rsb", "add", "adc", "sbc", "rsc",
"tst", "teq", "cmp", "cmn", "orr", "mov", "bic", "mvn",
};
return {opcode[mode], _c,
_move(mode) ? string{_s, " ", _r[d]} : string{},
_comp(mode) ? string{" ", _r[n]} : string{},
_math(mode) ? string{_s, " ", _r[d], ",", _r[n]} : string{},
",", _r[m],
type == 0 && shift ? string{" lsl #", shift} : string{},
type == 1 ? string{" lsr #", shift ? (uint)shift : 32} : string{},
type == 2 ? string{" asr #", shift ? (uint)shift : 32} : string{},
type == 3 && shift ? string{" ror #", shift} : string{},
type == 3 && !shift ? " rrx" : ""};
}
auto ARM7TDMI::armDisassembleDataRegisterShift
(uint4 m, uint2 type, uint4 s, uint4 d, uint4 n, uint1 save, uint4 mode) -> string {
static const string opcode[] = {
"and", "eor", "sub", "rsb", "add", "adc", "sbc", "rsc",
"tst", "teq", "cmp", "cmn", "orr", "mov", "bic", "mvn",
};
return {opcode[mode], _c,
_move(mode) ? string{_s, " ", _r[d]} : string{},
_comp(mode) ? string{" ", _r[n]} : string{},
_math(mode) ? string{_s, " ", _r[d], ",", _r[n]} : string{},
",", _r[m], " ",
type == 0 ? "lsl" : "",
type == 1 ? "lsr" : "",
type == 2 ? "asr" : "",
type == 3 ? "ror" : "",
" ", _r[s]};
}
auto ARM7TDMI::armDisassembleLoadImmediate
(uint8 immediate, uint1 half, uint4 d, uint4 n, uint1 writeback, uint1 up, uint1 pre) -> string {
string data;
if(n == 15) data = {" =0x", hex(read((half ? Half : Byte) | Nonsequential,
_pc + 8 + (up ? +immediate : -immediate)), half ? 4L : 2L)};
return {"ldr", _c, half ? "sh" : "sb", " ",
_r[d], ",[", _r[n],
pre == 0 ? "]" : "",
immediate ? string{",", up ? "+" : "-", "0x", hex(immediate, 2L)} : string{},
pre == 1 ? "]" : "",
pre == 0 || writeback ? "!" : "", data};
}
auto ARM7TDMI::armDisassembleLoadRegister
(uint4 m, uint1 half, uint4 d, uint4 n, uint1 writeback, uint1 up, uint1 pre) -> string {
return {"ldr", _c, half ? "sh" : "sb", " ",
_r[d], ",[", _r[n],
pre == 0 ? "]" : "",
",", up ? "+" : "-", _r[m],
pre == 1 ? "]" : "",
pre == 0 || writeback ? "!" : ""};
}
auto ARM7TDMI::armDisassembleMemorySwap
(uint4 m, uint4 d, uint4 n, uint1 byte) -> string {
return {"swp", _c, byte ? "b" : "", " ", _r[d], ",", _r[m], ",[", _r[n], "]"};
}
auto ARM7TDMI::armDisassembleMoveHalfImmediate
(uint8 immediate, uint4 d, uint4 n, uint1 mode, uint1 writeback, uint1 up, uint1 pre) -> string {
string data;
if(n == 15) data = {" =0x", hex(read(Half | Nonsequential, _pc + (up ? +immediate : -immediate)), 4L)};
return {mode ? "ldr" : "str", _c, "h ",
_r[d], ",[", _r[n],
pre == 0 ? "]" : "",
immediate ? string{",", up ? "+" : "-", "0x", hex(immediate, 2L)} : string{},
pre == 1 ? "]" : "",
pre == 0 || writeback ? "!" : "", data};
}
auto ARM7TDMI::armDisassembleMoveHalfRegister
(uint4 m, uint4 d, uint4 n, uint1 mode, uint1 writeback, uint1 up, uint1 pre) -> string {
return {mode ? "ldr" : "str", _c, "h ",
_r[d], ",[", _r[n],
pre == 0 ? "]" : "",
",", up ? "+" : "-", _r[m],
pre == 1 ? "]" : "",
pre == 0 || writeback ? "!" : ""};
}
auto ARM7TDMI::armDisassembleMoveImmediateOffset
(uint12 immediate, uint4 d, uint4 n, uint1 mode, uint1 writeback, uint1 byte, uint1 up, uint1 pre) -> string {
string data;
if(n == 15) data = {" =0x", hex(read((byte ? Byte : Word) | Nonsequential,
_pc + 8 + (up ? +immediate : -immediate)), byte ? 2L : 4L)};
return {mode ? "ldr" : "str", _c, byte ? "b" : "", " ", _r[d], ",[", _r[n],
pre == 0 ? "]" : "",
immediate ? string{",", up ? "+" : "-", "0x", hex(immediate, 3L)} : string{},
pre == 1 ? "]" : "",
pre == 0 || writeback ? "!" : "", data};
}
auto ARM7TDMI::armDisassembleMoveMultiple
(uint16 list, uint4 n, uint1 mode, uint1 writeback, uint1 type, uint1 up, uint1 pre) -> string {
string registers;
for(uint index : range(16)) {
if(list.bit(index)) registers.append(_r[index], ",");
}
registers.trimRight(",", 1L);
return {mode ? "ldm" : "stm", _c,
up == 0 && pre == 0 ? "da" : "",
up == 0 && pre == 1 ? "db" : "",
up == 1 && pre == 0 ? "ia" : "",
up == 1 && pre == 1 ? "ib" : "",
" ", _r[n], writeback ? "!" : "",
",{", registers, "}", type ? "^" : ""};
}
auto ARM7TDMI::armDisassembleMoveRegisterOffset
(uint4 m, uint2 type, uint5 shift, uint4 d, uint4 n, uint1 mode, uint1 writeback, uint1 byte, uint1 up, uint1 pre) -> string {
return {mode ? "ldr" : "str", _c, byte ? "b" : "", " ", _r[d], ",[", _r[n],
pre == 0 ? "]" : "",
",", up ? "+" : "-", _r[m],
type == 0 && shift ? string{" lsl #", shift} : string{},
type == 1 ? string{" lsr #", shift ? (uint)shift : 32} : string{},
type == 2 ? string{" asr #", shift ? (uint)shift : 32} : string{},
type == 3 && shift ? string{" ror #", shift} : string{},
type == 3 && !shift ? " rrx" : "",
pre == 1 ? "]" : "",
pre == 0 || writeback ? "!" : ""};
}
auto ARM7TDMI::armDisassembleMoveToRegisterFromStatus
(uint4 d, uint1 mode) -> string {
return {"mrs", _c, " ", _r[d], ",", mode ? "spsr" : "cpsr"};
}
auto ARM7TDMI::armDisassembleMoveToStatusFromImmediate
(uint8 immediate, uint4 rotate, uint4 field, uint1 mode) -> string {
uint32 data = immediate >> (rotate << 1) | immediate << 32 - (rotate << 1);
return {"msr", _c, " ", mode ? "spsr:" : "cpsr:",
field.bit(0) ? "c" : "",
field.bit(1) ? "x" : "",
field.bit(2) ? "s" : "",
field.bit(3) ? "f" : "",
",#0x", hex(data, 8L)};
}
auto ARM7TDMI::armDisassembleMoveToStatusFromRegister
(uint4 m, uint4 field, uint1 mode) -> string {
return {"msr", _c, " ", mode ? "spsr:" : "cpsr:",
field.bit(0) ? "c" : "",
field.bit(1) ? "x" : "",
field.bit(2) ? "s" : "",
field.bit(3) ? "f" : "",
",", _r[m]};
}
auto ARM7TDMI::armDisassembleMultiply
(uint4 m, uint4 s, uint4 n, uint4 d, uint1 save, uint1 accumulate) -> string {
if(accumulate) {
return {"mla", _c, _s, " ", _r[d], ",", _r[m], ",", _r[s], ",", _r[n]};
} else {
return {"mul", _c, _s, " ", _r[d], ",", _r[m], ",", _r[s]};
}
}
auto ARM7TDMI::armDisassembleMultiplyLong
(uint4 m, uint4 s, uint4 l, uint4 h, uint1 save, uint1 accumulate, uint1 sign) -> string {
return {sign ? "s" : "u", accumulate ? "mlal" : "mull", _c, _s, " ",
_r[l], ",", _r[h], ",", _r[m], ",", _r[s]};
}
auto ARM7TDMI::armDisassembleSoftwareInterrupt
(uint24 immediate) -> string {
return {"swi #0x", hex(immediate, 6L)};
}
auto ARM7TDMI::armDisassembleUndefined
() -> string {
return {"undefined"};
}
//
auto ARM7TDMI::thumbDisassembleALU
(uint3 d, uint3 m, uint4 mode) -> string {
static const string opcode[] = {
"and", "eor", "lsl", "lsr", "asr", "adc", "sbc", "ror",
"tst", "neg", "cmp", "cmn", "orr", "mul", "bic", "mvn",
};
return {opcode[mode], " ", _r[d], ",", _r[m]};
}
auto ARM7TDMI::thumbDisassembleALUExtended
(uint4 d, uint4 m, uint2 mode) -> string {
static const string opcode[] = {"add", "sub", "mov"};
if(d == 8 && m == 8 && mode == 2) return {"nop"};
return {opcode[mode], " ", _r[d], ",", _r[m]};
}
auto ARM7TDMI::thumbDisassembleAddRegister
(uint8 immediate, uint3 d, uint1 mode) -> string {
return {"add ", _r[d], ",", mode ? "sp" : "pc", ",#0x", hex(immediate, 2L)};
}
auto ARM7TDMI::thumbDisassembleAdjustImmediate
(uint3 d, uint3 n, uint3 immediate, uint1 mode) -> string {
return {!mode ? "add" : "sub", " ", _r[d], ",", _r[n], ",#", immediate};
}
auto ARM7TDMI::thumbDisassembleAdjustRegister
(uint3 d, uint3 n, uint3 m, uint1 mode) -> string {
return {!mode ? "add" : "sub", " ", _r[d], ",", _r[n], ",", _r[m]};
}
auto ARM7TDMI::thumbDisassembleAdjustStack
(uint7 immediate, uint1 mode) -> string {
return {!mode ? "add" : "sub", " sp,#0x", hex(immediate * 4, 3L)};
}
auto ARM7TDMI::thumbDisassembleBranchExchange
(uint4 m) -> string {
return {"bx ", _r[m]};
}
auto ARM7TDMI::thumbDisassembleBranchFarPrefix
(int11 displacementHi) -> string {
uint11 displacementLo = read(Half | Nonsequential, (_pc & ~1) + 2);
int22 displacement = displacementHi << 11 | displacementLo << 0;
uint32 address = _pc + 4 + displacement * 2;
return {"bl 0x", hex(address, 8L)};
}
auto ARM7TDMI::thumbDisassembleBranchFarSuffix
(uint11 displacement) -> string {
return {"bl (suffix)"};
}
auto ARM7TDMI::thumbDisassembleBranchNear
(int11 displacement) -> string {
uint32 address = _pc + 4 + displacement * 2;
return {"b 0x", hex(address, 8L)};
}
auto ARM7TDMI::thumbDisassembleBranchTest
(int8 displacement, uint4 condition) -> string {
uint32 address = _pc + 4 + displacement * 2;
return {"b", _conditions[condition], " 0x", hex(address, 8L)};
}
auto ARM7TDMI::thumbDisassembleImmediate
(uint8 immediate, uint3 d, uint2 mode) -> string {
static const string opcode[] = {"mov", "cmp", "add", "sub"};
return {opcode[mode], " ", _r[d], ",#0x", hex(immediate, 2L)};
}
auto ARM7TDMI::thumbDisassembleLoadLiteral
(uint8 displacement, uint3 d) -> string {
uint32 address = ((_pc + 4) & ~3) + (displacement << 2);
uint32 data = read(Word | Nonsequential, address);
return {"ldr ", _r[d], ",[pc,#0x", hex(address, 8L), "] =0x", hex(data, 8L)};
}
auto ARM7TDMI::thumbDisassembleMoveByteImmediate
(uint3 d, uint3 n, uint5 offset, uint1 mode) -> string {
return {mode ? "ldrb" : "strb", " ", _r[d], ",[", _r[n], ",#0x", hex(offset, 2L), "]"};
}
auto ARM7TDMI::thumbDisassembleMoveHalfImmediate
(uint3 d, uint3 n, uint5 offset, uint1 mode) -> string {
return {mode ? "ldrh" : "strh", " ", _r[d], ",[", _r[n], ",#0x", hex(offset * 2, 2L), "]"};
}
auto ARM7TDMI::thumbDisassembleMoveMultiple
(uint8 list, uint3 n, uint1 mode) -> string {
string registers;
for(uint m : range(8)) {
if(list.bit(m)) registers.append(_r[m], ",");
}
registers.trimRight(",", 1L);
return {mode ? "ldmia" : "stmia", " ", _r[n], "!,{", registers, "}"};
}
auto ARM7TDMI::thumbDisassembleMoveRegisterOffset
(uint3 d, uint3 n, uint3 m, uint3 mode) -> string {
static const string opcode[] = {"str", "strh", "strb", "ldsb", "ldr", "ldrh", "ldrb", "ldsh"};
return {opcode[mode], " ", _r[d], ",[", _r[n], ",", _r[m], "]"};
}
auto ARM7TDMI::thumbDisassembleMoveStack
(uint8 immediate, uint3 d, uint1 mode) -> string {
return {mode ? "ldr" : "str", " ", _r[d], ",[sp,#0x", hex(immediate * 4, 3L), "]"};
}
auto ARM7TDMI::thumbDisassembleMoveWordImmediate
(uint3 d, uint3 n, uint5 offset, uint1 mode) -> string {
return {mode ? "ldr" : "str", " ", _r[d], ",[", _r[n], ",#0x", hex(offset * 4, 2L), "]"};
}
auto ARM7TDMI::thumbDisassembleShiftImmediate
(uint3 d, uint3 m, uint5 immediate, uint2 mode) -> string {
static const string opcode[] = {"lsl", "lsr", "asr"};
return {opcode[mode], " ", _r[d], ",", _r[m], ",#", immediate};
}
auto ARM7TDMI::thumbDisassembleSoftwareInterrupt
(uint8 immediate) -> string {
return {"swi #0x", hex(immediate, 2L)};
}
auto ARM7TDMI::thumbDisassembleStackMultiple
(uint8 list, uint1 lrpc, uint1 mode) -> string {
string registers;
for(uint m : range(8)) {
if(list.bit(m)) registers.append(_r[m], ",");
}
if(lrpc) registers.append(!mode ? "lr," : "pc,");
registers.trimRight(",", 1L);
return {!mode ? "push" : "pop", " {", registers, "}"};
}
auto ARM7TDMI::thumbDisassembleUndefined
() -> string {
return {"undefined"};
}
#undef _s
#undef _move
#undef _comp
#undef _save
@@ -1,538 +0,0 @@
auto ARM7TDMI::fetch() -> void {
pipeline.execute = pipeline.decode;
pipeline.decode = pipeline.fetch;
pipeline.decode.thumb = cpsr().t;
uint sequential = Sequential;
if(pipeline.nonsequential) {
pipeline.nonsequential = false;
sequential = Nonsequential;
}
uint mask = !cpsr().t ? 3 : 1;
uint size = !cpsr().t ? Word : Half;
r(15).data += size >> 3;
pipeline.fetch.address = r(15) & ~mask;
pipeline.fetch.instruction = read(Prefetch | size | sequential, pipeline.fetch.address);
}
auto ARM7TDMI::instruction() -> void {
uint mask = !cpsr().t ? 3 : 1;
uint size = !cpsr().t ? Word : Half;
if(pipeline.reload) {
pipeline.reload = false;
r(15).data &= ~mask;
pipeline.fetch.address = r(15) & ~mask;
pipeline.fetch.instruction = read(Prefetch | size | Nonsequential, pipeline.fetch.address);
fetch();
}
fetch();
if(irq && !cpsr().i) {
exception(PSR::IRQ, 0x18);
if(pipeline.execute.thumb) r(14).data += 2;
return;
}
opcode = pipeline.execute.instruction;
if(!pipeline.execute.thumb) {
if(!TST(opcode.bit(28,31))) return;
uint12 index = (opcode & 0x0ff00000) >> 16 | (opcode & 0x000000f0) >> 4;
armInstruction[index](opcode);
} else {
thumbInstruction[(uint16)opcode]();
}
}
auto ARM7TDMI::exception(uint mode, uint32 address) -> void {
auto psr = cpsr();
cpsr().m = mode;
spsr() = psr;
cpsr().t = 0;
if(cpsr().m == PSR::FIQ) cpsr().f = 1;
cpsr().i = 1;
r(14) = pipeline.decode.address;
r(15) = address;
}
auto ARM7TDMI::armInitialize() -> void {
#define bind(id, name, ...) { \
uint index = (id & 0x0ff00000) >> 16 | (id & 0x000000f0) >> 4; \
assert(!armInstruction[index]); \
armInstruction[index] = [&](uint32 opcode) { return armInstruction##name(arguments); }; \
armDisassemble[index] = [&](uint32 opcode) { return armDisassemble##name(arguments); }; \
}
#define pattern(s) \
std::integral_constant<uint32_t, bit::test(s)>::value
#define arguments \
opcode.bit( 0,23), /* displacement */ \
opcode.bit(24) /* link */
for(uint4 displacementLo : range(16))
for(uint4 displacementHi : range(16))
for(uint1 link : range(2)) {
auto opcode = pattern(".... 101? ???? ???? ???? ???? ???? ????")
| displacementLo << 4 | displacementHi << 20 | link << 24;
bind(opcode, Branch);
}
#undef arguments
#define arguments \
opcode.bit( 0, 3) /* m */
{
auto opcode = pattern(".... 0001 0010 ---- ---- ---- 0001 ????");
bind(opcode, BranchExchangeRegister);
}
#undef arguments
#define arguments \
opcode.bit( 0, 7), /* immediate */ \
opcode.bit( 8,11), /* shift */ \
opcode.bit(12,15), /* d */ \
opcode.bit(16,19), /* n */ \
opcode.bit(20), /* save */ \
opcode.bit(21,24) /* mode */
for(uint4 shiftHi : range(16))
for(uint1 save : range(2))
for(uint4 mode : range(16)) {
if(mode >= 8 && mode <= 11 && !save) continue; //TST, TEQ, CMP, CMN
auto opcode = pattern(".... 001? ???? ???? ???? ???? ???? ????") | shiftHi << 4 | save << 20 | mode << 21;
bind(opcode, DataImmediate);
}
#undef arguments
#define arguments \
opcode.bit( 0, 3), /* m */ \
opcode.bit( 5, 6), /* type */ \
opcode.bit( 7,11), /* shift */ \
opcode.bit(12,15), /* d */ \
opcode.bit(16,19), /* n */ \
opcode.bit(20), /* save */ \
opcode.bit(21,24) /* mode */
for(uint2 type : range(4))
for(uint1 shiftLo : range(2))
for(uint1 save : range(2))
for(uint4 mode : range(16)) {
if(mode >= 8 && mode <= 11 && !save) continue; //TST, TEQ, CMP, CMN
auto opcode = pattern(".... 000? ???? ???? ???? ???? ???0 ????") | type << 5 | shiftLo << 7 | save << 20 | mode << 21;
bind(opcode, DataImmediateShift);
}
#undef arguments
#define arguments \
opcode.bit( 0, 3), /* m */ \
opcode.bit( 5, 6), /* type */ \
opcode.bit( 8,11), /* s */ \
opcode.bit(12,15), /* d */ \
opcode.bit(16,19), /* n */ \
opcode.bit(20), /* save */ \
opcode.bit(21,24) /* mode */
for(uint2 type : range(4))
for(uint1 save : range(2))
for(uint4 mode : range(16)) {
if(mode >= 8 && mode <= 11 && !save) continue; //TST, TEQ, CMP, CMN
auto opcode = pattern(".... 000? ???? ???? ???? ???? 0??1 ????") | type << 5 | save << 20 | mode << 21;
bind(opcode, DataRegisterShift);
}
#undef arguments
#define arguments \
opcode.bit( 0, 3) << 0 | opcode.bit( 8,11) << 4, /* immediate */ \
opcode.bit( 5), /* half */ \
opcode.bit(12,15), /* d */ \
opcode.bit(16,19), /* n */ \
opcode.bit(21), /* writeback */ \
opcode.bit(23), /* up */ \
opcode.bit(24) /* pre */
for(uint1 half : range(2))
for(uint1 writeback : range(2))
for(uint1 up : range(2))
for(uint1 pre : range(2)) {
auto opcode = pattern(".... 000? ?1?1 ???? ???? ???? 11?1 ????") | half << 5 | writeback << 21 | up << 23 | pre << 24;
bind(opcode, LoadImmediate);
}
#undef arguments
#define arguments \
opcode.bit( 0, 3), /* m */ \
opcode.bit( 5), /* half */ \
opcode.bit(12,15), /* d */ \
opcode.bit(16,19), /* n */ \
opcode.bit(21), /* writeback */ \
opcode.bit(23), /* up */ \
opcode.bit(24) /* pre */
for(uint1 half : range(2))
for(uint1 writeback : range(2))
for(uint1 up : range(2))
for(uint1 pre : range(2)) {
auto opcode = pattern(".... 000? ?0?1 ???? ???? ---- 11?1 ????") | half << 5 | writeback << 21 | up << 23 | pre << 24;
bind(opcode, LoadRegister);
}
#undef arguments
#define arguments \
opcode.bit( 0, 3), /* m */ \
opcode.bit(12,15), /* d */ \
opcode.bit(16,19), /* n */ \
opcode.bit(22) /* byte */
for(uint1 byte : range(2)) {
auto opcode = pattern(".... 0001 0?00 ???? ???? ---- 1001 ????") | byte << 22;
bind(opcode, MemorySwap);
}
#undef arguments
#define arguments \
opcode.bit( 0, 3) << 0 | opcode.bit( 8,11) << 4, /* immediate */ \
opcode.bit(12,15), /* d */ \
opcode.bit(16,19), /* n */ \
opcode.bit(20), /* mode */ \
opcode.bit(21), /* writeback */ \
opcode.bit(23), /* up */ \
opcode.bit(24) /* pre */
for(uint1 mode : range(2))
for(uint1 writeback : range(2))
for(uint1 up : range(2))
for(uint1 pre : range(2)) {
auto opcode = pattern(".... 000? ?1?? ???? ???? ???? 1011 ????") | mode << 20 | writeback << 21 | up << 23 | pre << 24;
bind(opcode, MoveHalfImmediate);
}
#undef arguments
#define arguments \
opcode.bit( 0, 3), /* m */ \
opcode.bit(12,15), /* d */ \
opcode.bit(16,19), /* n */ \
opcode.bit(20), /* mode */ \
opcode.bit(21), /* writeback */ \
opcode.bit(23), /* up */ \
opcode.bit(24) /* pre */
for(uint1 mode : range(2))
for(uint1 writeback : range(2))
for(uint1 up : range(2))
for(uint1 pre : range(2)) {
auto opcode = pattern(".... 000? ?0?? ???? ???? ---- 1011 ????") | mode << 20 | writeback << 21 | up << 23 | pre << 24;
bind(opcode, MoveHalfRegister);
}
#undef arguments
#define arguments \
opcode.bit( 0,11), /* immediate */ \
opcode.bit(12,15), /* d */ \
opcode.bit(16,19), /* n */ \
opcode.bit(20), /* mode */ \
opcode.bit(21), /* writeback */ \
opcode.bit(22), /* byte */ \
opcode.bit(23), /* up */ \
opcode.bit(24) /* pre */
for(uint4 immediatePart : range(16))
for(uint1 mode : range(2))
for(uint1 writeback : range(2))
for(uint1 byte : range(2))
for(uint1 up : range(2))
for(uint1 pre : range(2)) {
auto opcode = pattern(".... 010? ???? ???? ???? ???? ???? ????")
| immediatePart << 4 | mode << 20 | writeback << 21 | byte << 22 | up << 23 | pre << 24;
bind(opcode, MoveImmediateOffset);
}
#undef arguments
#define arguments \
opcode.bit( 0,15), /* list */ \
opcode.bit(16,19), /* n */ \
opcode.bit(20), /* mode */ \
opcode.bit(21), /* writeback */ \
opcode.bit(22), /* type */ \
opcode.bit(23), /* up */ \
opcode.bit(24) /* pre */
for(uint4 listPart : range(16))
for(uint1 mode : range(2))
for(uint1 writeback : range(2))
for(uint1 type : range(2))
for(uint1 up : range(2))
for(uint1 pre : range(2)) {
auto opcode = pattern(".... 100? ???? ???? ???? ???? ???? ????")
| listPart << 4 | mode << 20 | writeback << 21 | type << 22 | up << 23 | pre << 24;
bind(opcode, MoveMultiple);
}
#undef arguments
#define arguments \
opcode.bit( 0, 3), /* m */ \
opcode.bit( 5, 6), /* type */ \
opcode.bit( 7,11), /* shift */ \
opcode.bit(12,15), /* d */ \
opcode.bit(16,19), /* n */ \
opcode.bit(20), /* mode */ \
opcode.bit(21), /* writeback */ \
opcode.bit(22), /* byte */ \
opcode.bit(23), /* up */ \
opcode.bit(24) /* pre */
for(uint2 type : range(4))
for(uint1 shiftLo : range(2))
for(uint1 mode : range(2))
for(uint1 writeback : range(2))
for(uint1 byte : range(2))
for(uint1 up : range(2))
for(uint1 pre : range(2)) {
auto opcode = pattern(".... 011? ???? ???? ???? ???? ???0 ????")
| type << 5 | shiftLo << 7 | mode << 20 | writeback << 21 | byte << 22 | up << 23 | pre << 24;
bind(opcode, MoveRegisterOffset);
}
#undef arguments
#define arguments \
opcode.bit(12,15), /* d */ \
opcode.bit(22) /* mode */
for(uint1 mode : range(2)) {
auto opcode = pattern(".... 0001 0?00 ---- ???? ---- 0000 ----") | mode << 22;
bind(opcode, MoveToRegisterFromStatus);
}
#undef arguments
#define arguments \
opcode.bit( 0, 7), /* immediate */ \
opcode.bit( 8,11), /* rotate */ \
opcode.bit(16,19), /* field */ \
opcode.bit(22) /* mode */
for(uint4 immediateHi : range(16))
for(uint1 mode : range(2)) {
auto opcode = pattern(".... 0011 0?10 ???? ---- ???? ???? ????") | immediateHi << 4 | mode << 22;
bind(opcode, MoveToStatusFromImmediate);
}
#undef arguments
#define arguments \
opcode.bit( 0, 3), /* m */ \
opcode.bit(16,19), /* field */ \
opcode.bit(22) /* mode */
for(uint1 mode : range(2)) {
auto opcode = pattern(".... 0001 0?10 ???? ---- ---- 0000 ????") | mode << 22;
bind(opcode, MoveToStatusFromRegister);
}
#undef arguments
#define arguments \
opcode.bit( 0, 3), /* m */ \
opcode.bit( 8,11), /* s */ \
opcode.bit(12,15), /* n */ \
opcode.bit(16,19), /* d */ \
opcode.bit(20), /* save */ \
opcode.bit(21) /* accumulate */
for(uint1 save : range(2))
for(uint1 accumulate : range(2)) {
auto opcode = pattern(".... 0000 00?? ???? ???? ???? 1001 ????") | save << 20 | accumulate << 21;
bind(opcode, Multiply);
}
#undef arguments
#define arguments \
opcode.bit( 0, 3), /* m */ \
opcode.bit( 8,11), /* s */ \
opcode.bit(12,15), /* l */ \
opcode.bit(16,19), /* h */ \
opcode.bit(20), /* save */ \
opcode.bit(21), /* accumulate */ \
opcode.bit(22) /* sign */
for(uint1 save : range(2))
for(uint1 accumulate : range(2))
for(uint1 sign : range(2)) {
auto opcode = pattern(".... 0000 1??? ???? ???? ???? 1001 ????") | save << 20 | accumulate << 21 | sign << 22;
bind(opcode, MultiplyLong);
}
#undef arguments
#define arguments \
opcode.bit( 0,23) /* immediate */
for(uint4 immediateLo : range(16))
for(uint4 immediateHi : range(16)) {
auto opcode = pattern(".... 1111 ???? ???? ???? ???? ???? ????") | immediateLo << 4 | immediateHi << 20;
bind(opcode, SoftwareInterrupt);
}
#undef arguments
#define arguments
for(uint12 id : range(4096)) {
if(armInstruction[id]) continue;
auto opcode = pattern(".... ???? ???? ---- ---- ---- ???? ----") | id.bit(0,3) << 4 | id.bit(4,11) << 20;
bind(opcode, Undefined);
}
#undef arguments
#undef bind
#undef pattern
}
auto ARM7TDMI::thumbInitialize() -> void {
#define bind(id, name, ...) { \
assert(!thumbInstruction[id]); \
thumbInstruction[id] = [=] { return thumbInstruction##name(__VA_ARGS__); }; \
thumbDisassemble[id] = [=] { return thumbDisassemble##name(__VA_ARGS__); }; \
}
#define pattern(s) \
std::integral_constant<uint16_t, bit::test(s)>::value
for(uint3 d : range(8))
for(uint3 m : range(8))
for(uint4 mode : range(16)) {
auto opcode = pattern("0100 00?? ???? ????") | d << 0 | m << 3 | mode << 6;
bind(opcode, ALU, d, m, mode);
}
for(uint4 d : range(16))
for(uint4 m : range(16))
for(uint2 mode : range(4)) {
if(mode == 3) continue;
auto opcode = pattern("0100 01?? ???? ????") | d.bit(0,2) << 0 | m << 3 | d.bit(3) << 7 | mode << 8;
bind(opcode, ALUExtended, d, m, mode);
}
for(uint8 immediate : range(256))
for(uint3 d : range(8))
for(uint1 mode : range(2)) {
auto opcode = pattern("1010 ???? ???? ????") | immediate << 0 | d << 8 | mode << 11;
bind(opcode, AddRegister, immediate, d, mode);
}
for(uint3 d : range(8))
for(uint3 n : range(8))
for(uint3 immediate : range(8))
for(uint1 mode : range(2)) {
auto opcode = pattern("0001 11?? ???? ????") | d << 0 | n << 3 | immediate << 6 | mode << 9;
bind(opcode, AdjustImmediate, d, n, immediate, mode);
}
for(uint3 d : range(8))
for(uint3 n : range(8))
for(uint3 m : range(8))
for(uint1 mode : range(2)) {
auto opcode = pattern("0001 10?? ???? ????") | d << 0 | n << 3 | m << 6 | mode << 9;
bind(opcode, AdjustRegister, d, n, m, mode);
}
for(uint7 immediate : range(128))
for(uint1 mode : range(2)) {
auto opcode = pattern("1011 0000 ???? ????") | immediate << 0 | mode << 7;
bind(opcode, AdjustStack, immediate, mode);
}
for(uint3 _ : range(8))
for(uint4 m : range(16)) {
auto opcode = pattern("0100 0111 0??? ?---") | _ << 0 | m << 3;
bind(opcode, BranchExchange, m);
}
for(uint11 displacement : range(2048)) {
auto opcode = pattern("1111 0??? ???? ????") | displacement << 0;
bind(opcode, BranchFarPrefix, displacement);
}
for(uint11 displacement : range(2048)) {
auto opcode = pattern("1111 1??? ???? ????") | displacement << 0;
bind(opcode, BranchFarSuffix, displacement);
}
for(uint11 displacement : range(2048)) {
auto opcode = pattern("1110 0??? ???? ????") | displacement << 0;
bind(opcode, BranchNear, displacement);
}
for(uint8 displacement : range(256))
for(uint4 condition : range(16)) {
if(condition == 15) continue; //BNV
auto opcode = pattern("1101 ???? ???? ????") | displacement << 0 | condition << 8;
bind(opcode, BranchTest, displacement, condition);
}
for(uint8 immediate : range(256))
for(uint3 d : range(8))
for(uint2 mode : range(4)) {
auto opcode = pattern("001? ???? ???? ????") | immediate << 0 | d << 8 | mode << 11;
bind(opcode, Immediate, immediate, d, mode);
}
for(uint8 displacement : range(256))
for(uint3 d : range(8)) {
auto opcode = pattern("0100 1??? ???? ????") | displacement << 0 | d << 8;
bind(opcode, LoadLiteral, displacement, d);
}
for(uint3 d : range(8))
for(uint3 n : range(8))
for(uint5 immediate : range(32))
for(uint1 mode : range(2)) {
auto opcode = pattern("0111 ???? ???? ????") | d << 0 | n << 3 | immediate << 6 | mode << 11;
bind(opcode, MoveByteImmediate, d, n, immediate, mode);
}
for(uint3 d : range(8))
for(uint3 n : range(8))
for(uint5 immediate : range(32))
for(uint1 mode : range(2)) {
auto opcode = pattern("1000 ???? ???? ????") | d << 0 | n << 3 | immediate << 6 | mode << 11;
bind(opcode, MoveHalfImmediate, d, n, immediate, mode);
}
for(uint8 list : range(256))
for(uint3 n : range(8))
for(uint1 mode : range(2)) {
auto opcode = pattern("1100 ???? ???? ????") | list << 0 | n << 8 | mode << 11;
bind(opcode, MoveMultiple, list, n, mode);
}
for(uint3 d : range(8))
for(uint3 n : range(8))
for(uint3 m : range(8))
for(uint3 mode : range(8)) {
auto opcode = pattern("0101 ???? ???? ????") | d << 0 | n << 3 | m << 6 | mode << 9;
bind(opcode, MoveRegisterOffset, d, n, m, mode);
}
for(uint8 immediate : range(256))
for(uint3 d : range(8))
for(uint1 mode : range(2)) {
auto opcode = pattern("1001 ???? ???? ????") | immediate << 0 | d << 8 | mode << 11;
bind(opcode, MoveStack, immediate, d, mode);
}
for(uint3 d : range(8))
for(uint3 n : range(8))
for(uint5 offset : range(32))
for(uint1 mode : range(2)) {
auto opcode = pattern("0110 ???? ???? ????") | d << 0 | n << 3 | offset << 6 | mode << 11;
bind(opcode, MoveWordImmediate, d, n, offset, mode);
}
for(uint3 d : range(8))
for(uint3 m : range(8))
for(uint5 immediate : range(32))
for(uint2 mode : range(4)) {
if(mode == 3) continue;
auto opcode = pattern("000? ???? ???? ????") | d << 0 | m << 3 | immediate << 6 | mode << 11;
bind(opcode, ShiftImmediate, d, m, immediate, mode);
}
for(uint8 immediate : range(256)) {
auto opcode = pattern("1101 1111 ???? ????") | immediate << 0;
bind(opcode, SoftwareInterrupt, immediate);
}
for(uint8 list : range(256))
for(uint1 lrpc : range(2))
for(uint1 mode : range(2)) {
auto opcode = pattern("1011 ?10? ???? ????") | list << 0 | lrpc << 8 | mode << 11;
bind(opcode, StackMultiple, list, lrpc, mode);
}
for(uint16 id : range(65536)) {
if(thumbInstruction[id]) continue;
auto opcode = pattern("???? ???? ???? ????") | id << 0;
bind(opcode, Undefined);
}
#undef bind
#undef pattern
}
@@ -1,314 +0,0 @@
auto ARM7TDMI::armALU(uint4 mode, uint4 d, uint4 n, uint32 rm) -> void {
uint32 rn = r(n);
switch(mode) {
case 0: r(d) = BIT(rn & rm); break; //AND
case 1: r(d) = BIT(rn ^ rm); break; //EOR
case 2: r(d) = SUB(rn, rm, 1); break; //SUB
case 3: r(d) = SUB(rm, rn, 1); break; //RSB
case 4: r(d) = ADD(rn, rm, 0); break; //ADD
case 5: r(d) = ADD(rn, rm, cpsr().c); break; //ADC
case 6: r(d) = SUB(rn, rm, cpsr().c); break; //SBC
case 7: r(d) = SUB(rm, rn, cpsr().c); break; //RSC
case 8: BIT(rn & rm); break; //TST
case 9: BIT(rn ^ rm); break; //TEQ
case 10: SUB(rn, rm, 1); break; //CMP
case 11: ADD(rn, rm, 0); break; //CMN
case 12: r(d) = BIT(rn | rm); break; //ORR
case 13: r(d) = BIT(rm); break; //MOV
case 14: r(d) = BIT(rn & ~rm); break; //BIC
case 15: r(d) = BIT(~rm); break; //MVN
}
if(exception() && d == 15 && opcode.bit(20)) {
cpsr() = spsr();
}
}
auto ARM7TDMI::armMoveToStatus(uint4 field, uint1 mode, uint32 data) -> void {
if(mode && (cpsr().m == PSR::USR || cpsr().m == PSR::SYS)) return;
PSR& psr = mode ? spsr() : cpsr();
if(field.bit(0)) {
if(mode || privileged()) {
psr.m = data.bit(0,4);
psr.t = data.bit(5);
psr.f = data.bit(6);
psr.i = data.bit(7);
if(!mode && psr.t) r(15).data += 2;
}
}
if(field.bit(3)) {
psr.v = data.bit(28);
psr.c = data.bit(29);
psr.z = data.bit(30);
psr.n = data.bit(31);
}
}
//
auto ARM7TDMI::armInstructionBranch
(int24 displacement, uint1 link) -> void {
if(link) r(14) = r(15) - 4;
r(15) = r(15) + displacement * 4;
}
auto ARM7TDMI::armInstructionBranchExchangeRegister
(uint4 m) -> void {
uint32 address = r(m);
cpsr().t = address.bit(0);
r(15) = address;
}
auto ARM7TDMI::armInstructionDataImmediate
(uint8 immediate, uint4 shift, uint4 d, uint4 n, uint1 save, uint4 mode) -> void {
uint32 data = immediate;
carry = cpsr().c;
if(shift) data = ROR(data, shift << 1);
armALU(mode, d, n, data);
}
auto ARM7TDMI::armInstructionDataImmediateShift
(uint4 m, uint2 type, uint5 shift, uint4 d, uint4 n, uint1 save, uint4 mode) -> void {
uint32 rm = r(m);
carry = cpsr().c;
switch(type) {
case 0: rm = LSL(rm, shift); break;
case 1: rm = LSR(rm, shift ? (uint)shift : 32); break;
case 2: rm = ASR(rm, shift ? (uint)shift : 32); break;
case 3: rm = shift ? ROR(rm, shift) : RRX(rm); break;
}
armALU(mode, d, n, rm);
}
auto ARM7TDMI::armInstructionDataRegisterShift
(uint4 m, uint2 type, uint4 s, uint4 d, uint4 n, uint1 save, uint4 mode) -> void {
uint8 rs = r(s) + (s == 15 ? 4 : 0);
uint32 rm = r(m) + (m == 15 ? 4 : 0);
carry = cpsr().c;
switch(type) {
case 0: rm = LSL(rm, rs < 33 ? rs : (uint8)33); break;
case 1: rm = LSR(rm, rs < 33 ? rs : (uint8)33); break;
case 2: rm = ASR(rm, rs < 32 ? rs : (uint8)32); break;
case 3: if(rs) rm = ROR(rm, rs & 31 ? uint(rs & 31) : 32); break;
}
armALU(mode, d, n, rm);
}
auto ARM7TDMI::armInstructionLoadImmediate
(uint8 immediate, uint1 half, uint4 d, uint4 n, uint1 writeback, uint1 up, uint1 pre) -> void {
uint32 rn = r(n);
uint32 rd = r(d);
if(pre == 1) rn = up ? rn + immediate : rn - immediate;
rd = load((half ? Half : Byte) | Nonsequential | Signed, rn);
if(pre == 0) rn = up ? rn + immediate : rn - immediate;
if(pre == 0 || writeback) r(n) = rn;
r(d) = rd;
}
auto ARM7TDMI::armInstructionLoadRegister
(uint4 m, uint1 half, uint4 d, uint4 n, uint1 writeback, uint1 up, uint1 pre) -> void {
uint32 rn = r(n);
uint32 rm = r(m);
uint32 rd = r(d);
if(pre == 1) rn = up ? rn + rm : rn - rm;
rd = load((half ? Half : Byte) | Nonsequential | Signed, rn);
if(pre == 0) rn = up ? rn + rm : rn - rm;
if(pre == 0 || writeback) r(n) = rn;
r(d) = rd;
}
auto ARM7TDMI::armInstructionMemorySwap
(uint4 m, uint4 d, uint4 n, uint1 byte) -> void {
uint32 word = load((byte ? Byte : Word) | Nonsequential, r(n));
store((byte ? Byte : Word) | Nonsequential, r(n), r(m));
r(d) = word;
}
auto ARM7TDMI::armInstructionMoveHalfImmediate
(uint8 immediate, uint4 d, uint4 n, uint1 mode, uint1 writeback, uint1 up, uint1 pre) -> void {
uint32 rn = r(n);
uint32 rd = r(d);
if(pre == 1) rn = up ? rn + immediate : rn - immediate;
if(mode == 1) rd = load(Half | Nonsequential, rn);
if(mode == 0) store(Half | Nonsequential, rn, rd);
if(pre == 0) rn = up ? rn + immediate : rn - immediate;
if(pre == 0 || writeback) r(n) = rn;
if(mode == 1) r(d) = rd;
}
auto ARM7TDMI::armInstructionMoveHalfRegister
(uint4 m, uint4 d, uint4 n, uint1 mode, uint1 writeback, uint1 up, uint1 pre) -> void {
uint32 rn = r(n);
uint32 rm = r(m);
uint32 rd = r(d);
if(pre == 1) rn = up ? rn + rm : rn - rm;
if(mode == 1) rd = load(Half | Nonsequential, rn);
if(mode == 0) store(Half | Nonsequential, rn, rd);
if(pre == 0) rn = up ? rn + rm : rn - rm;
if(pre == 0 || writeback) r(n) = rn;
if(mode == 1) r(d) = rd;
}
auto ARM7TDMI::armInstructionMoveImmediateOffset
(uint12 immediate, uint4 d, uint4 n, uint1 mode, uint1 writeback, uint1 byte, uint1 up, uint1 pre) -> void {
uint32 rn = r(n);
uint32 rd = r(d);
if(pre == 1) rn = up ? rn + immediate : rn - immediate;
if(mode == 1) rd = load((byte ? Byte : Word) | Nonsequential, rn);
if(mode == 0) store((byte ? Byte : Word) | Nonsequential, rn, rd);
if(pre == 0) rn = up ? rn + immediate : rn - immediate;
if(pre == 0 || writeback) r(n) = rn;
if(mode == 1) r(d) = rd;
}
auto ARM7TDMI::armInstructionMoveMultiple
(uint16 list, uint4 n, uint1 mode, uint1 writeback, uint1 type, uint1 up, uint1 pre) -> void {
uint32 rn = r(n);
if(pre == 0 && up == 1) rn = rn + 0; //IA
if(pre == 1 && up == 1) rn = rn + 4; //IB
if(pre == 1 && up == 0) rn = rn - bit::count(list) * 4 + 0; //DB
if(pre == 0 && up == 0) rn = rn - bit::count(list) * 4 + 4; //DA
if(writeback && mode == 1) {
if(up == 1) r(n) = r(n) + bit::count(list) * 4; //IA,IB
if(up == 0) r(n) = r(n) - bit::count(list) * 4; //DA,DB
}
auto cpsrMode = cpsr().m;
bool usr = false;
if(type && mode == 1 && !list.bit(15)) usr = true;
if(type && mode == 0) usr = true;
if(usr) cpsr().m = PSR::USR;
uint sequential = Nonsequential;
for(uint m : range(16)) {
if(!list.bit(m)) continue;
if(mode == 1) r(m) = read(Word | sequential, rn);
if(mode == 0) write(Word | sequential, rn, r(m));
rn += 4;
sequential = Sequential;
}
if(usr) cpsr().m = cpsrMode;
if(mode) {
idle();
if(type && list.bit(15) && cpsr().m != PSR::USR && cpsr().m != PSR::SYS) {
cpsr() = spsr();
}
} else {
pipeline.nonsequential = true;
}
if(writeback && mode == 0) {
if(up == 1) r(n) = r(n) + bit::count(list) * 4; //IA,IB
if(up == 0) r(n) = r(n) - bit::count(list) * 4; //DA,DB
}
}
auto ARM7TDMI::armInstructionMoveRegisterOffset
(uint4 m, uint2 type, uint5 shift, uint4 d, uint4 n, uint1 mode, uint1 writeback, uint1 byte, uint1 up, uint1 pre) -> void {
uint32 rm = r(m);
uint32 rd = r(d);
uint32 rn = r(n);
carry = cpsr().c;
switch(type) {
case 0: rm = LSL(rm, shift); break;
case 1: rm = LSR(rm, shift ? (uint)shift : 32); break;
case 2: rm = ASR(rm, shift ? (uint)shift : 32); break;
case 3: rm = shift ? ROR(rm, shift) : RRX(rm); break;
}
if(pre == 1) rn = up ? rn + rm : rn - rm;
if(mode == 1) rd = load((byte ? Byte : Word) | Nonsequential, rn);
if(mode == 0) store((byte ? Byte : Word) | Nonsequential, rn, rd);
if(pre == 0) rn = up ? rn + rm : rn - rm;
if(pre == 0 || writeback) r(n) = rn;
if(mode == 1) r(d) = rd;
}
auto ARM7TDMI::armInstructionMoveToRegisterFromStatus
(uint4 d, uint1 mode) -> void {
if(mode && (cpsr().m == PSR::USR || cpsr().m == PSR::SYS)) return;
r(d) = mode ? spsr() : cpsr();
}
auto ARM7TDMI::armInstructionMoveToStatusFromImmediate
(uint8 immediate, uint4 rotate, uint4 field, uint1 mode) -> void {
uint32 data = immediate;
if(rotate) data = ROR(data, rotate << 1);
armMoveToStatus(field, mode, data);
}
auto ARM7TDMI::armInstructionMoveToStatusFromRegister
(uint4 m, uint4 field, uint1 mode) -> void {
armMoveToStatus(field, mode, r(m));
}
auto ARM7TDMI::armInstructionMultiply
(uint4 m, uint4 s, uint4 n, uint4 d, uint1 save, uint1 accumulate) -> void {
if(accumulate) idle();
r(d) = MUL(accumulate ? r(n) : 0, r(m), r(s));
}
auto ARM7TDMI::armInstructionMultiplyLong
(uint4 m, uint4 s, uint4 l, uint4 h, uint1 save, uint1 accumulate, uint1 sign) -> void {
uint64 rm = r(m);
uint64 rs = r(s);
idle();
idle();
if(accumulate) idle();
if(sign) {
if(rs >> 8 && rs >> 8 != 0xffffff) idle();
if(rs >> 16 && rs >> 16 != 0xffff) idle();
if(rs >> 24 && rs >> 24 != 0xff) idle();
rm = (int32)rm;
rs = (int32)rs;
} else {
if(rs >> 8) idle();
if(rs >> 16) idle();
if(rs >> 24) idle();
}
uint64 rd = rm * rs;
if(accumulate) rd += (uint64)r(h) << 32 | (uint64)r(l) << 0;
r(h) = rd >> 32;
r(l) = rd >> 0;
if(save) {
cpsr().z = rd == 0;
cpsr().n = rd.bit(63);
}
}
auto ARM7TDMI::armInstructionSoftwareInterrupt
(uint24 immediate) -> void {
exception(PSR::SVC, 0x08);
}
auto ARM7TDMI::armInstructionUndefined
() -> void {
exception(PSR::UND, 0x04);
}
@@ -1,225 +0,0 @@
auto ARM7TDMI::thumbInstructionALU
(uint3 d, uint3 m, uint4 mode) -> void {
switch(mode) {
case 0: r(d) = BIT(r(d) & r(m)); break; //AND
case 1: r(d) = BIT(r(d) ^ r(m)); break; //EOR
case 2: r(d) = BIT(LSL(r(d), r(m))); break; //LSL
case 3: r(d) = BIT(LSR(r(d), r(m))); break; //LSR
case 4: r(d) = BIT(ASR(r(d), r(m))); break; //ASR
case 5: r(d) = ADD(r(d), r(m), cpsr().c); break; //ADC
case 6: r(d) = SUB(r(d), r(m), cpsr().c); break; //SBC
case 7: r(d) = BIT(ROR(r(d), r(m))); break; //ROR
case 8: BIT(r(d) & r(m)); break; //TST
case 9: r(d) = SUB(0, r(m), 1); break; //NEG
case 10: SUB(r(d), r(m), 1); break; //CMP
case 11: ADD(r(d), r(m), 0); break; //CMN
case 12: r(d) = BIT(r(d) | r(m)); break; //ORR
case 13: r(d) = MUL(0, r(m), r(d)); break; //MUL
case 14: r(d) = BIT(r(d) & ~r(m)); break; //BIC
case 15: r(d) = BIT(~r(m)); break; //MVN
}
}
auto ARM7TDMI::thumbInstructionALUExtended
(uint4 d, uint4 m, uint2 mode) -> void {
switch(mode) {
case 0: r(d) = r(d) + r(m); break; //ADD
case 1: SUB(r(d), r(m), 1); break; //SUBS
case 2: r(d) = r(m); break; //MOV
}
}
auto ARM7TDMI::thumbInstructionAddRegister
(uint8 immediate, uint3 d, uint1 mode) -> void {
switch(mode) {
case 0: r(d) = (r(15) & ~3) + immediate * 4; break; //ADD pc
case 1: r(d) = r(13) + immediate * 4; break; //ADD sp
}
}
auto ARM7TDMI::thumbInstructionAdjustImmediate
(uint3 d, uint3 n, uint3 immediate, uint1 mode) -> void {
switch(mode) {
case 0: r(d) = ADD(r(n), immediate, 0); break; //ADD
case 1: r(d) = SUB(r(n), immediate, 1); break; //SUB
}
}
auto ARM7TDMI::thumbInstructionAdjustRegister
(uint3 d, uint3 n, uint3 m, uint1 mode) -> void {
switch(mode) {
case 0: r(d) = ADD(r(n), r(m), 0); break; //ADD
case 1: r(d) = SUB(r(n), r(m), 1); break; //SUB
}
}
auto ARM7TDMI::thumbInstructionAdjustStack
(uint7 immediate, uint1 mode) -> void {
switch(mode) {
case 0: r(13) = r(13) + immediate * 4; break; //ADD
case 1: r(13) = r(13) - immediate * 4; break; //SUB
}
}
auto ARM7TDMI::thumbInstructionBranchExchange
(uint4 m) -> void {
uint32 address = r(m);
cpsr().t = address.bit(0);
r(15) = address;
}
auto ARM7TDMI::thumbInstructionBranchFarPrefix
(int11 displacement) -> void {
r(14) = r(15) + (displacement * 2 << 11);
}
auto ARM7TDMI::thumbInstructionBranchFarSuffix
(uint11 displacement) -> void {
r(15) = r(14) + (displacement * 2);
r(14) = pipeline.decode.address | 1;
}
auto ARM7TDMI::thumbInstructionBranchNear
(int11 displacement) -> void {
r(15) = r(15) + displacement * 2;
}
auto ARM7TDMI::thumbInstructionBranchTest
(int8 displacement, uint4 condition) -> void {
if(!TST(condition)) return;
r(15) = r(15) + displacement * 2;
}
auto ARM7TDMI::thumbInstructionImmediate
(uint8 immediate, uint3 d, uint2 mode) -> void {
switch(mode) {
case 0: r(d) = BIT(immediate); break; //MOV
case 1: SUB(r(d), immediate, 1); break; //CMP
case 2: r(d) = ADD(r(d), immediate, 0); break; //ADD
case 3: r(d) = SUB(r(d), immediate, 1); break; //SUB
}
}
auto ARM7TDMI::thumbInstructionLoadLiteral
(uint8 displacement, uint3 d) -> void {
uint32 address = (r(15) & ~3) + (displacement << 2);
r(d) = load(Word | Nonsequential, address);
}
auto ARM7TDMI::thumbInstructionMoveByteImmediate
(uint3 d, uint3 n, uint5 offset, uint1 mode) -> void {
switch(mode) {
case 0: store(Byte | Nonsequential, r(n) + offset, r(d)); break; //STRB
case 1: r(d) = load(Byte | Nonsequential, r(n) + offset); break; //LDRB
}
}
auto ARM7TDMI::thumbInstructionMoveHalfImmediate
(uint3 d, uint3 n, uint5 offset, uint1 mode) -> void {
switch(mode) {
case 0: store(Half | Nonsequential, r(n) + offset * 2, r(d)); break; //STRH
case 1: r(d) = load(Half | Nonsequential, r(n) + offset * 2); break; //LDRH
}
}
auto ARM7TDMI::thumbInstructionMoveMultiple
(uint8 list, uint3 n, uint1 mode) -> void {
uint32 rn = r(n);
for(uint m : range(8)) {
if(!list.bit(m)) continue;
switch(mode) {
case 0: write(Word | Nonsequential, rn, r(m)); break; //STMIA
case 1: r(m) = read(Word | Nonsequential, rn); break; //LDMIA
}
rn += 4;
}
if(mode == 0 || !list.bit(n)) r(n) = rn;
if(mode == 1) idle();
}
auto ARM7TDMI::thumbInstructionMoveRegisterOffset
(uint3 d, uint3 n, uint3 m, uint3 mode) -> void {
switch(mode) {
case 0: store(Word | Nonsequential, r(n) + r(m), r(d)); break; //STR
case 1: store(Half | Nonsequential, r(n) + r(m), r(d)); break; //STRH
case 2: store(Byte | Nonsequential, r(n) + r(m), r(d)); break; //STRB
case 3: r(d) = load(Byte | Nonsequential | Signed, r(n) + r(m)); break; //LDSB
case 4: r(d) = load(Word | Nonsequential, r(n) + r(m)); break; //LDR
case 5: r(d) = load(Half | Nonsequential, r(n) + r(m)); break; //LDRH
case 6: r(d) = load(Byte | Nonsequential, r(n) + r(m)); break; //LDRB
case 7: r(d) = load(Half | Nonsequential | Signed, r(n) + r(m)); break; //LDSH
}
}
auto ARM7TDMI::thumbInstructionMoveStack
(uint8 immediate, uint3 d, uint1 mode) -> void {
switch(mode) {
case 0: store(Word | Nonsequential, r(13) + immediate * 4, r(d)); break; //STR
case 1: r(d) = load(Word | Nonsequential, r(13) + immediate * 4); break; //LDR
}
}
auto ARM7TDMI::thumbInstructionMoveWordImmediate
(uint3 d, uint3 n, uint5 offset, uint1 mode) -> void {
switch(mode) {
case 0: store(Word | Nonsequential, r(n) + offset * 4, r(d)); break; //STR
case 1: r(d) = load(Word | Nonsequential, r(n) + offset * 4); break; //LDR
}
}
auto ARM7TDMI::thumbInstructionShiftImmediate
(uint3 d, uint3 m, uint5 immediate, uint2 mode) -> void {
switch(mode) {
case 0: r(d) = BIT(LSL(r(m), immediate)); break; //LSL
case 1: r(d) = BIT(LSR(r(m), immediate ? (uint)immediate : 32)); break; //LSR
case 2: r(d) = BIT(ASR(r(m), immediate ? (uint)immediate : 32)); break; //ASR
}
}
auto ARM7TDMI::thumbInstructionSoftwareInterrupt
(uint8 immediate) -> void {
exception(PSR::SVC, 0x08);
}
auto ARM7TDMI::thumbInstructionStackMultiple
(uint8 list, uint1 lrpc, uint1 mode) -> void {
uint32 sp;
switch(mode) {
case 0: sp = r(13) - (bit::count(list) + lrpc) * 4; break; //PUSH
case 1: sp = r(13); //POP
}
uint sequential = Nonsequential;
for(uint m : range(8)) {
if(!list.bit(m)) continue;
switch(mode) {
case 0: write(Word | sequential, sp, r(m)); break; //PUSH
case 1: r(m) = read(Word | sequential, sp); break; //POP
}
sp += 4;
sequential = Sequential;
}
if(lrpc) {
switch(mode) {
case 0: write(Word | sequential, sp, r(14)); break; //PUSH
case 1: r(15) = read(Word | sequential, sp); break; //POP
}
sp += 4;
}
if(mode == 1) {
idle();
r(13) = r(13) + (bit::count(list) + lrpc) * 4; //POP
} else {
pipeline.nonsequential = true;
r(13) = r(13) - (bit::count(list) + lrpc) * 4; //PUSH
}
}
auto ARM7TDMI::thumbInstructionUndefined
() -> void {
exception(PSR::UND, 0x04);
}
@@ -1,40 +0,0 @@
auto ARM7TDMI::idle() -> void {
pipeline.nonsequential = true;
sleep();
}
auto ARM7TDMI::read(uint mode, uint32 address) -> uint32 {
return get(mode, address);
}
auto ARM7TDMI::load(uint mode, uint32 address) -> uint32 {
pipeline.nonsequential = true;
auto word = get(Load | mode, address);
if(mode & Half) {
address &= 1;
word = mode & Signed ? (uint32)(int16)word : (uint32)(uint16)word;
}
if(mode & Byte) {
address &= 0;
word = mode & Signed ? (uint32)(int8)word : (uint32)(uint8)word;
}
if(mode & Signed) {
word = ASR(word, address.bit(0,1) << 3);
} else {
word = ROR(word, address.bit(0,1) << 3);
}
idle();
return word;
}
auto ARM7TDMI::write(uint mode, uint32 address, uint32 word) -> void {
pipeline.nonsequential = true;
return set(mode, address, word);
}
auto ARM7TDMI::store(uint mode, uint32 address, uint32 word) -> void {
pipeline.nonsequential = true;
if(mode & Half) { word &= 0xffff; word |= word << 16; }
if(mode & Byte) { word &= 0xff; word |= word << 8; word |= word << 16; }
return set(Store | mode, address, word);
}
@@ -1,58 +0,0 @@
auto ARM7TDMI::r(uint4 index) -> GPR& {
switch(index) {
case 0: return processor.r0;
case 1: return processor.r1;
case 2: return processor.r2;
case 3: return processor.r3;
case 4: return processor.r4;
case 5: return processor.r5;
case 6: return processor.r6;
case 7: return processor.r7;
case 8: return processor.cpsr.m == PSR::FIQ ? processor.fiq.r8 : processor.r8;
case 9: return processor.cpsr.m == PSR::FIQ ? processor.fiq.r9 : processor.r9;
case 10: return processor.cpsr.m == PSR::FIQ ? processor.fiq.r10 : processor.r10;
case 11: return processor.cpsr.m == PSR::FIQ ? processor.fiq.r11 : processor.r11;
case 12: return processor.cpsr.m == PSR::FIQ ? processor.fiq.r12 : processor.r12;
case 13: switch(processor.cpsr.m) {
case PSR::FIQ: return processor.fiq.r13;
case PSR::IRQ: return processor.irq.r13;
case PSR::SVC: return processor.svc.r13;
case PSR::ABT: return processor.abt.r13;
case PSR::UND: return processor.und.r13;
default: return processor.r13;
}
case 14: switch(processor.cpsr.m) {
case PSR::FIQ: return processor.fiq.r14;
case PSR::IRQ: return processor.irq.r14;
case PSR::SVC: return processor.svc.r14;
case PSR::ABT: return processor.abt.r14;
case PSR::UND: return processor.und.r14;
default: return processor.r14;
}
case 15: return processor.r15;
}
unreachable;
}
auto ARM7TDMI::cpsr() -> PSR& {
return processor.cpsr;
}
auto ARM7TDMI::spsr() -> PSR& {
switch(processor.cpsr.m) {
case PSR::FIQ: return processor.fiq.spsr;
case PSR::IRQ: return processor.irq.spsr;
case PSR::SVC: return processor.svc.spsr;
case PSR::ABT: return processor.abt.spsr;
case PSR::UND: return processor.und.spsr;
}
throw;
}
auto ARM7TDMI::privileged() const -> bool {
return processor.cpsr.m != PSR::USR;
}
auto ARM7TDMI::exception() const -> bool {
return privileged() && processor.cpsr.m != PSR::SYS;
}
@@ -1,71 +0,0 @@
auto ARM7TDMI::serialize(serializer& s) -> void {
processor.serialize(s);
pipeline.serialize(s);
s.boolean(carry);
s.boolean(irq);
}
auto ARM7TDMI::Processor::serialize(serializer& s) -> void {
s.integer(r0.data);
s.integer(r1.data);
s.integer(r2.data);
s.integer(r3.data);
s.integer(r4.data);
s.integer(r5.data);
s.integer(r6.data);
s.integer(r7.data);
s.integer(r8.data);
s.integer(r9.data);
s.integer(r10.data);
s.integer(r11.data);
s.integer(r12.data);
s.integer(r13.data);
s.integer(r14.data);
s.integer(r15.data);
cpsr.serialize(s);
s.integer(fiq.r8.data);
s.integer(fiq.r9.data);
s.integer(fiq.r10.data);
s.integer(fiq.r11.data);
s.integer(fiq.r12.data);
s.integer(fiq.r13.data);
s.integer(fiq.r14.data);
fiq.spsr.serialize(s);
s.integer(irq.r13.data);
s.integer(irq.r14.data);
irq.spsr.serialize(s);
s.integer(svc.r13.data);
s.integer(svc.r14.data);
svc.spsr.serialize(s);
s.integer(abt.r13.data);
s.integer(abt.r14.data);
abt.spsr.serialize(s);
s.integer(und.r13.data);
s.integer(und.r14.data);
und.spsr.serialize(s);
}
auto ARM7TDMI::PSR::serialize(serializer& s) -> void {
s.integer(m);
s.boolean(t);
s.boolean(f);
s.boolean(i);
s.boolean(v);
s.boolean(c);
s.boolean(z);
s.boolean(n);
}
auto ARM7TDMI::Pipeline::serialize(serializer& s) -> void {
s.integer(reload);
s.integer(nonsequential);
s.integer(fetch.address);
s.integer(fetch.instruction);
s.boolean(fetch.thumb);
s.integer(decode.address);
s.integer(decode.instruction);
s.boolean(decode.thumb);
s.integer(execute.address);
s.integer(execute.instruction);
s.boolean(execute.thumb);
}
@@ -1,286 +0,0 @@
auto GSU::disassembleInstruction() -> string {
char s[256];
disassembleOpcode(s);
return pad(s, -14);
}
auto GSU::disassembleContext() -> string {
string s;
for(uint n : range(16)) {
s.append("r", n, ":", hex(regs.r[n].data, 4L), " ");
}
s.append("..."); //todo: add SFR flags
return s;
}
auto GSU::disassembleOpcode(char* output) -> void {
*output = 0;
switch(regs.sfr.alt2 << 1 | regs.sfr.alt1 << 0) {
case 0: disassembleALT0(output); break;
case 1: disassembleALT1(output); break;
case 2: disassembleALT2(output); break;
case 3: disassembleALT3(output); break;
}
uint length = strlen(output);
while(length++ < 20) strcat(output, " ");
}
#define case4(id) \
case id+ 0: case id+ 1: case id+ 2: case id+ 3
#define case6(id) \
case id+ 0: case id+ 1: case id+ 2: case id+ 3: case id+ 4: case id+ 5
#define case12(id) \
case id+ 0: case id+ 1: case id+ 2: case id+ 3: case id+ 4: case id+ 5: case id+ 6: case id+ 7: \
case id+ 8: case id+ 9: case id+10: case id+11
#define case15(id) \
case id+ 0: case id+ 1: case id+ 2: case id+ 3: case id+ 4: case id+ 5: case id+ 6: case id+ 7: \
case id+ 8: case id+ 9: case id+10: case id+11: case id+12: case id+13: case id+14
#define case16(id) \
case id+ 0: case id+ 1: case id+ 2: case id+ 3: case id+ 4: case id+ 5: case id+ 6: case id+ 7: \
case id+ 8: case id+ 9: case id+10: case id+11: case id+12: case id+13: case id+14: case id+15
#define op0 regs.pipeline
#define op1 read((regs.pbr << 16) + regs.r[15] + 0)
#define op2 read((regs.pbr << 16) + regs.r[15] + 1)
auto GSU::disassembleALT0(char* output) -> void {
char t[256] = "";
switch(op0) {
case (0x00): sprintf(t, "stop"); break;
case (0x01): sprintf(t, "nop"); break;
case (0x02): sprintf(t, "cache"); break;
case (0x03): sprintf(t, "lsr"); break;
case (0x04): sprintf(t, "rol"); break;
case (0x05): sprintf(t, "bra %+d", (int8_t)op1); break;
case (0x06): sprintf(t, "blt %+d", (int8_t)op1); break;
case (0x07): sprintf(t, "bge %+d", (int8_t)op1); break;
case (0x08): sprintf(t, "bne %+d", (int8_t)op1); break;
case (0x09): sprintf(t, "beq %+d", (int8_t)op1); break;
case (0x0a): sprintf(t, "bpl %+d", (int8_t)op1); break;
case (0x0b): sprintf(t, "bmi %+d", (int8_t)op1); break;
case (0x0c): sprintf(t, "bcc %+d", (int8_t)op1); break;
case (0x0d): sprintf(t, "bcs %+d", (int8_t)op1); break;
case (0x0e): sprintf(t, "bvc %+d", (int8_t)op1); break;
case (0x0f): sprintf(t, "bvs %+d", (int8_t)op1); break;
case16(0x10): sprintf(t, "to r%u", op0 & 15); break;
case16(0x20): sprintf(t, "with r%u", op0 & 15); break;
case12(0x30): sprintf(t, "stw (r%u)", op0 & 15); break;
case (0x3c): sprintf(t, "loop"); break;
case (0x3d): sprintf(t, "alt1"); break;
case (0x3e): sprintf(t, "alt2"); break;
case (0x3f): sprintf(t, "alt3"); break;
case12(0x40): sprintf(t, "ldw (r%u)", op0 & 15); break;
case (0x4c): sprintf(t, "plot"); break;
case (0x4d): sprintf(t, "swap"); break;
case (0x4e): sprintf(t, "color"); break;
case (0x4f): sprintf(t, "not"); break;
case16(0x50): sprintf(t, "add r%u", op0 & 15); break;
case16(0x60): sprintf(t, "sub r%u", op0 & 15); break;
case (0x70): sprintf(t, "merge"); break;
case15(0x71): sprintf(t, "and r%u", op0 & 15); break;
case16(0x80): sprintf(t, "mult r%u", op0 & 15); break;
case (0x90): sprintf(t, "sbk"); break;
case4 (0x91): sprintf(t, "link #%u", op0 & 15); break;
case (0x95): sprintf(t, "sex"); break;
case (0x96): sprintf(t, "asr"); break;
case (0x97): sprintf(t, "ror"); break;
case6 (0x98): sprintf(t, "jmp r%u", op0 & 15); break;
case (0x9e): sprintf(t, "lob"); break;
case (0x9f): sprintf(t, "fmult"); break;
case16(0xa0): sprintf(t, "ibt r%u,#$%.2x", op0 & 15, op1 & 255); break;
case16(0xb0): sprintf(t, "from r%u", op0 & 15); break;
case (0xc0): sprintf(t, "hib"); break;
case15(0xc1): sprintf(t, "or r%u", op0 & 15); break;
case15(0xd0): sprintf(t, "inc r%u", op0 & 15); break;
case (0xdf): sprintf(t, "getc"); break;
case15(0xe0): sprintf(t, "dec r%u", op0 & 15); break;
case (0xef): sprintf(t, "getb"); break;
case16(0xf0): sprintf(t, "iwt r%u,#$%.2x%.2x", op0 & 15, op2 & 255, op1 & 255); break;
}
strcat(output, t);
}
auto GSU::disassembleALT1(char* output) -> void {
char t[256] = "";
switch(op0) {
case (0x00): sprintf(t, "stop"); break;
case (0x01): sprintf(t, "nop"); break;
case (0x02): sprintf(t, "cache"); break;
case (0x03): sprintf(t, "lsr"); break;
case (0x04): sprintf(t, "rol"); break;
case (0x05): sprintf(t, "bra %+d", (int8_t)op1); break;
case (0x06): sprintf(t, "blt %+d", (int8_t)op1); break;
case (0x07): sprintf(t, "bge %+d", (int8_t)op1); break;
case (0x08): sprintf(t, "bne %+d", (int8_t)op1); break;
case (0x09): sprintf(t, "beq %+d", (int8_t)op1); break;
case (0x0a): sprintf(t, "bpl %+d", (int8_t)op1); break;
case (0x0b): sprintf(t, "bmi %+d", (int8_t)op1); break;
case (0x0c): sprintf(t, "bcc %+d", (int8_t)op1); break;
case (0x0d): sprintf(t, "bcs %+d", (int8_t)op1); break;
case (0x0e): sprintf(t, "bvc %+d", (int8_t)op1); break;
case (0x0f): sprintf(t, "bvs %+d", (int8_t)op1); break;
case16(0x10): sprintf(t, "to r%u", op0 & 15); break;
case16(0x20): sprintf(t, "with r%u", op0 & 15); break;
case12(0x30): sprintf(t, "stb (r%u)", op0 & 15); break;
case (0x3c): sprintf(t, "loop"); break;
case (0x3d): sprintf(t, "alt1"); break;
case (0x3e): sprintf(t, "alt2"); break;
case (0x3f): sprintf(t, "alt3"); break;
case12(0x40): sprintf(t, "ldb (r%u)", op0 & 15); break;
case (0x4c): sprintf(t, "rpix"); break;
case (0x4d): sprintf(t, "swap"); break;
case (0x4e): sprintf(t, "cmode"); break;
case (0x4f): sprintf(t, "not"); break;
case16(0x50): sprintf(t, "adc r%u", op0 & 15); break;
case16(0x60): sprintf(t, "sbc r%u", op0 & 15); break;
case (0x70): sprintf(t, "merge"); break;
case15(0x71): sprintf(t, "bic r%u", op0 & 15); break;
case16(0x80): sprintf(t, "umult r%u", op0 & 15); break;
case (0x90): sprintf(t, "sbk"); break;
case4 (0x91): sprintf(t, "link #%u", op0 & 15); break;
case (0x95): sprintf(t, "sex"); break;
case (0x96): sprintf(t, "div2"); break;
case (0x97): sprintf(t, "ror"); break;
case6 (0x98): sprintf(t, "ljmp r%u", op0 & 15); break;
case (0x9e): sprintf(t, "lob"); break;
case (0x9f): sprintf(t, "lmult"); break;
case16(0xa0): sprintf(t, "lms r%u,(#$%.4x)", op0 & 15, op1 << 1); break;
case16(0xb0): sprintf(t, "from r%u", op0 & 15); break;
case (0xc0): sprintf(t, "hib"); break;
case15(0xc1): sprintf(t, "xor r%u", op0 & 15); break;
case15(0xd0): sprintf(t, "inc r%u", op0 & 15); break;
case (0xdf): sprintf(t, "getc"); break;
case15(0xe0): sprintf(t, "dec r%u", op0 & 15); break;
case (0xef): sprintf(t, "getbh"); break;
case16(0xf0): sprintf(t, "lm r%u", op0 & 15); break;
}
strcat(output, t);
}
auto GSU::disassembleALT2(char* output) -> void {
char t[256] = "";
switch(op0) {
case (0x00): sprintf(t, "stop"); break;
case (0x01): sprintf(t, "nop"); break;
case (0x02): sprintf(t, "cache"); break;
case (0x03): sprintf(t, "lsr"); break;
case (0x04): sprintf(t, "rol"); break;
case (0x05): sprintf(t, "bra %+d", (int8_t)op1); break;
case (0x06): sprintf(t, "blt %+d", (int8_t)op1); break;
case (0x07): sprintf(t, "bge %+d", (int8_t)op1); break;
case (0x08): sprintf(t, "bne %+d", (int8_t)op1); break;
case (0x09): sprintf(t, "beq %+d", (int8_t)op1); break;
case (0x0a): sprintf(t, "bpl %+d", (int8_t)op1); break;
case (0x0b): sprintf(t, "bmi %+d", (int8_t)op1); break;
case (0x0c): sprintf(t, "bcc %+d", (int8_t)op1); break;
case (0x0d): sprintf(t, "bcs %+d", (int8_t)op1); break;
case (0x0e): sprintf(t, "bvc %+d", (int8_t)op1); break;
case (0x0f): sprintf(t, "bvs %+d", (int8_t)op1); break;
case16(0x10): sprintf(t, "to r%u", op0 & 15); break;
case16(0x20): sprintf(t, "with r%u", op0 & 15); break;
case12(0x30): sprintf(t, "stw (r%u)", op0 & 15); break;
case (0x3c): sprintf(t, "loop"); break;
case (0x3d): sprintf(t, "alt1"); break;
case (0x3e): sprintf(t, "alt2"); break;
case (0x3f): sprintf(t, "alt3"); break;
case12(0x40): sprintf(t, "ldw (r%u)", op0 & 15); break;
case (0x4c): sprintf(t, "plot"); break;
case (0x4d): sprintf(t, "swap"); break;
case (0x4e): sprintf(t, "color"); break;
case (0x4f): sprintf(t, "not"); break;
case16(0x50): sprintf(t, "add #%u", op0 & 15); break;
case16(0x60): sprintf(t, "sub #%u", op0 & 15); break;
case (0x70): sprintf(t, "merge"); break;
case15(0x71): sprintf(t, "and #%u", op0 & 15); break;
case16(0x80): sprintf(t, "mult #%u", op0 & 15); break;
case (0x90): sprintf(t, "sbk"); break;
case4 (0x91): sprintf(t, "link #%u", op0 & 15); break;
case (0x95): sprintf(t, "sex"); break;
case (0x96): sprintf(t, "asr"); break;
case (0x97): sprintf(t, "ror"); break;
case6 (0x98): sprintf(t, "jmp r%u", op0 & 15); break;
case (0x9e): sprintf(t, "lob"); break;
case (0x9f): sprintf(t, "fmult"); break;
case16(0xa0): sprintf(t, "sms r%u,(#$%.4x)", op0 & 15, op1 << 1); break;
case16(0xb0): sprintf(t, "from r%u", op0 & 15); break;
case (0xc0): sprintf(t, "hib"); break;
case15(0xc1): sprintf(t, "or #%u", op0 & 15); break;
case15(0xd0): sprintf(t, "inc r%u", op0 & 15); break;
case (0xdf): sprintf(t, "ramb"); break;
case15(0xe0): sprintf(t, "dec r%u", op0 & 15); break;
case (0xef): sprintf(t, "getbl"); break;
case16(0xf0): sprintf(t, "sm r%u", op0 & 15); break;
}
strcat(output, t);
}
auto GSU::disassembleALT3(char* output) -> void {
char t[256] = "";
switch(op0) {
case (0x00): sprintf(t, "stop"); break;
case (0x01): sprintf(t, "nop"); break;
case (0x02): sprintf(t, "cache"); break;
case (0x03): sprintf(t, "lsr"); break;
case (0x04): sprintf(t, "rol"); break;
case (0x05): sprintf(t, "bra %+d", (int8_t)op1); break;
case (0x06): sprintf(t, "blt %+d", (int8_t)op1); break;
case (0x07): sprintf(t, "bge %+d", (int8_t)op1); break;
case (0x08): sprintf(t, "bne %+d", (int8_t)op1); break;
case (0x09): sprintf(t, "beq %+d", (int8_t)op1); break;
case (0x0a): sprintf(t, "bpl %+d", (int8_t)op1); break;
case (0x0b): sprintf(t, "bmi %+d", (int8_t)op1); break;
case (0x0c): sprintf(t, "bcc %+d", (int8_t)op1); break;
case (0x0d): sprintf(t, "bcs %+d", (int8_t)op1); break;
case (0x0e): sprintf(t, "bvc %+d", (int8_t)op1); break;
case (0x0f): sprintf(t, "bvs %+d", (int8_t)op1); break;
case16(0x10): sprintf(t, "to r%u", op0 & 15); break;
case16(0x20): sprintf(t, "with r%u", op0 & 15); break;
case12(0x30): sprintf(t, "stb (r%u)", op0 & 15); break;
case (0x3c): sprintf(t, "loop"); break;
case (0x3d): sprintf(t, "alt1"); break;
case (0x3e): sprintf(t, "alt2"); break;
case (0x3f): sprintf(t, "alt3"); break;
case12(0x40): sprintf(t, "ldb (r%u)", op0 & 15); break;
case (0x4c): sprintf(t, "rpix"); break;
case (0x4d): sprintf(t, "swap"); break;
case (0x4e): sprintf(t, "cmode"); break;
case (0x4f): sprintf(t, "not"); break;
case16(0x50): sprintf(t, "adc #%u", op0 & 15); break;
case16(0x60): sprintf(t, "cmp r%u", op0 & 15); break;
case (0x70): sprintf(t, "merge"); break;
case15(0x71): sprintf(t, "bic #%u", op0 & 15); break;
case16(0x80): sprintf(t, "umult #%u", op0 & 15); break;
case (0x90): sprintf(t, "sbk"); break;
case4 (0x91): sprintf(t, "link #%u", op0 & 15); break;
case (0x95): sprintf(t, "sex"); break;
case (0x96): sprintf(t, "div2"); break;
case (0x97): sprintf(t, "ror"); break;
case6 (0x98): sprintf(t, "ljmp r%u", op0 & 15); break;
case (0x9e): sprintf(t, "lob"); break;
case (0x9f): sprintf(t, "lmult"); break;
case16(0xa0): sprintf(t, "lms r%u", op0 & 15); break;
case16(0xb0): sprintf(t, "from r%u", op0 & 15); break;
case (0xc0): sprintf(t, "hib"); break;
case15(0xc1): sprintf(t, "xor #%u", op0 & 15); break;
case15(0xd0): sprintf(t, "inc r%u", op0 & 15); break;
case (0xdf): sprintf(t, "romb"); break;
case15(0xe0): sprintf(t, "dec r%u", op0 & 15); break;
case (0xef): sprintf(t, "getbs"); break;
case16(0xf0): sprintf(t, "lm r%u", op0 & 15); break;
}
strcat(output, t);
}
#undef case4
#undef case6
#undef case12
#undef case15
#undef case16
#undef op0
#undef op1
#undef op2
-39
View File
@@ -1,39 +0,0 @@
#include <emulator/emulator.hpp>
#include "gsu.hpp"
//note: multiplication results *may* sometimes be invalid when both CLSR and MS0 are set
//the product of multiplication in this mode (21mhz + fast-multiply) has not been analyzed;
//however, the timing of this mode has been confirmed to work as specified below
namespace ares {
#include "instruction.cpp"
#include "instructions.cpp"
#include "serialization.cpp"
#include "disassembler.cpp"
auto GSU::power() -> void {
for(auto& r : regs.r) {
r.data = 0x0000;
r.modified = false;
}
regs.sfr = 0x0000;
regs.pbr = 0x00;
regs.rombr = 0x00;
regs.rambr = 0;
regs.cbr = 0x0000;
regs.scbr = 0x00;
regs.scmr = 0x00;
regs.colr = 0x00;
regs.por = 0x00;
regs.bramr = 0;
regs.vcr = 0x04;
regs.cfgr = 0x00;
regs.clsr = 0;
regs.pipeline = 0x01; //nop
regs.ramaddr = 0x0000;
regs.reset();
}
}
-88
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@@ -1,88 +0,0 @@
#pragma once
namespace ares {
struct GSU {
#include "registers.hpp"
virtual auto step(uint clocks) -> void = 0;
virtual auto stop() -> void = 0;
virtual auto color(uint8 source) -> uint8 = 0;
virtual auto plot(uint8 x, uint8 y) -> void = 0;
virtual auto rpix(uint8 x, uint8 y) -> uint8 = 0;
virtual auto pipe() -> uint8 = 0;
virtual auto syncROMBuffer() -> void = 0;
virtual auto readROMBuffer() -> uint8 = 0;
virtual auto syncRAMBuffer() -> void = 0;
virtual auto readRAMBuffer(uint16 address) -> uint8 = 0;
virtual auto writeRAMBuffer(uint16 address, uint8 data) -> void = 0;
virtual auto flushCache() -> void = 0;
virtual auto read(uint24 address, uint8 data = 0x00) -> uint8 = 0;
virtual auto write(uint24 address, uint8 data) -> void = 0;
//gsu.cpp
auto power() -> void;
//instructions.cpp
auto instructionADD_ADC(uint n) -> void;
auto instructionALT1() -> void;
auto instructionALT2() -> void;
auto instructionALT3() -> void;
auto instructionAND_BIC(uint n) -> void;
auto instructionASR_DIV2() -> void;
auto instructionBranch(bool c) -> void;
auto instructionCACHE() -> void;
auto instructionCOLOR_CMODE() -> void;
auto instructionDEC(uint n) -> void;
auto instructionFMULT_LMULT() -> void;
auto instructionFROM_MOVES(uint n) -> void;
auto instructionGETB() -> void;
auto instructionGETC_RAMB_ROMB() -> void;
auto instructionHIB() -> void;
auto instructionIBT_LMS_SMS(uint n) -> void;
auto instructionINC(uint n) -> void;
auto instructionIWT_LM_SM(uint n) -> void;
auto instructionJMP_LJMP(uint n) -> void;
auto instructionLINK(uint n) -> void;
auto instructionLoad(uint n) -> void;
auto instructionLOB() -> void;
auto instructionLOOP() -> void;
auto instructionLSR() -> void;
auto instructionMERGE() -> void;
auto instructionMULT_UMULT(uint n) -> void;
auto instructionNOP() -> void;
auto instructionNOT() -> void;
auto instructionOR_XOR(uint n) -> void;
auto instructionPLOT_RPIX() -> void;
auto instructionROL() -> void;
auto instructionROR() -> void;
auto instructionSBK() -> void;
auto instructionSEX() -> void;
auto instructionStore(uint n) -> void;
auto instructionSTOP() -> void;
auto instructionSUB_SBC_CMP(uint n) -> void;
auto instructionSWAP() -> void;
auto instructionTO_MOVE(uint n) -> void;
auto instructionWITH(uint n) -> void;
//switch.cpp
auto instruction(uint8 opcode) -> void;
//serialization.cpp
auto serialize(serializer&) -> void;
//disassembler.cpp
noinline auto disassembleInstruction() -> string;
noinline auto disassembleContext() -> string;
auto disassembleOpcode(char* output) -> void;
auto disassembleALT0(char* output) -> void;
auto disassembleALT1(char* output) -> void;
auto disassembleALT2(char* output) -> void;
auto disassembleALT3(char* output) -> void;
};
}
@@ -1,94 +0,0 @@
auto GSU::instruction(uint8 opcode) -> void {
#define op(id, name, ...) \
case id: return instruction##name(__VA_ARGS__); \
#define op4(id, name) \
case id+ 0: return instruction##name((uint4)opcode); \
case id+ 1: return instruction##name((uint4)opcode); \
case id+ 2: return instruction##name((uint4)opcode); \
case id+ 3: return instruction##name((uint4)opcode); \
#define op6(id, name) \
op4(id, name) \
case id+ 4: return instruction##name((uint4)opcode); \
case id+ 5: return instruction##name((uint4)opcode); \
#define op12(id, name) \
op6(id, name) \
case id+ 6: return instruction##name((uint4)opcode); \
case id+ 7: return instruction##name((uint4)opcode); \
case id+ 8: return instruction##name((uint4)opcode); \
case id+ 9: return instruction##name((uint4)opcode); \
case id+10: return instruction##name((uint4)opcode); \
case id+11: return instruction##name((uint4)opcode); \
#define op15(id, name) \
op12(id, name) \
case id+12: return instruction##name((uint4)opcode); \
case id+13: return instruction##name((uint4)opcode); \
case id+14: return instruction##name((uint4)opcode); \
#define op16(id, name) \
op15(id, name) \
case id+15: return instruction##name((uint4)opcode); \
switch(opcode) {
op (0x00, STOP)
op (0x01, NOP)
op (0x02, CACHE)
op (0x03, LSR)
op (0x04, ROL)
op (0x05, Branch, 1) //bra
op (0x06, Branch, (regs.sfr.s ^ regs.sfr.ov) == 0) //blt
op (0x07, Branch, (regs.sfr.s ^ regs.sfr.ov) == 1) //bge
op (0x08, Branch, regs.sfr.z == 0) //bne
op (0x09, Branch, regs.sfr.z == 1) //beq
op (0x0a, Branch, regs.sfr.s == 0) //bpl
op (0x0b, Branch, regs.sfr.s == 1) //bmi
op (0x0c, Branch, regs.sfr.cy == 0) //bcc
op (0x0d, Branch, regs.sfr.cy == 1) //bcs
op (0x0e, Branch, regs.sfr.ov == 0) //bvc
op (0x0f, Branch, regs.sfr.ov == 1) //bvs
op16(0x10, TO_MOVE)
op16(0x20, WITH)
op12(0x30, Store)
op (0x3c, LOOP)
op (0x3d, ALT1)
op (0x3e, ALT2)
op (0x3f, ALT3)
op12(0x40, Load)
op (0x4c, PLOT_RPIX)
op (0x4d, SWAP)
op (0x4e, COLOR_CMODE)
op (0x4f, NOT)
op16(0x50, ADD_ADC)
op16(0x60, SUB_SBC_CMP)
op (0x70, MERGE)
op15(0x71, AND_BIC)
op16(0x80, MULT_UMULT)
op (0x90, SBK)
op4 (0x91, LINK)
op (0x95, SEX)
op (0x96, ASR_DIV2)
op (0x97, ROR)
op6 (0x98, JMP_LJMP)
op (0x9e, LOB)
op (0x9f, FMULT_LMULT)
op16(0xa0, IBT_LMS_SMS)
op16(0xb0, FROM_MOVES)
op (0xc0, HIB)
op15(0xc1, OR_XOR)
op15(0xd0, INC)
op (0xdf, GETC_RAMB_ROMB)
op15(0xe0, DEC)
op (0xef, GETB)
op16(0xf0, IWT_LM_SM)
}
#undef op
#undef op4
#undef op6
#undef op12
#undef op15
#undef op16
}
@@ -1,424 +0,0 @@
//$00 stop
auto GSU::instructionSTOP() -> void {
if(regs.cfgr.irq == 0) {
regs.sfr.irq = 1;
stop();
}
regs.sfr.g = 0;
regs.pipeline = 0x01; //nop
regs.reset();
}
//$01 nop
auto GSU::instructionNOP() -> void {
regs.reset();
}
//$02 cache
auto GSU::instructionCACHE() -> void {
if(regs.cbr != (regs.r[15] & 0xfff0)) {
regs.cbr = regs.r[15] & 0xfff0;
flushCache();
}
regs.reset();
}
//$03 lsr
auto GSU::instructionLSR() -> void {
regs.sfr.cy = (regs.sr() & 1);
regs.dr() = regs.sr() >> 1;
regs.sfr.s = (regs.dr() & 0x8000);
regs.sfr.z = (regs.dr() == 0);
regs.reset();
}
//$04 rol
auto GSU::instructionROL() -> void {
bool carry = (regs.sr() & 0x8000);
regs.dr() = (regs.sr() << 1) | regs.sfr.cy;
regs.sfr.s = (regs.dr() & 0x8000);
regs.sfr.cy = carry;
regs.sfr.z = (regs.dr() == 0);
regs.reset();
}
//$05 bra e
//$06 blt e
//$07 bge e
//$08 bne e
//$09 beq e
//$0a bpl e
//$0b bmi e
//$0c bcc e
//$0d bcs e
//$0e bvc e
//$0f bvs e
auto GSU::instructionBranch(bool take) -> void {
auto displacement = (int8)pipe();
if(take) regs.r[15] += displacement;
}
//$10-1f(b0) to rN
//$10-1f(b1) move rN
auto GSU::instructionTO_MOVE(uint n) -> void {
if(!regs.sfr.b) {
regs.dreg = n;
} else {
regs.r[n] = regs.sr();
regs.reset();
}
}
//$20-2f with rN
auto GSU::instructionWITH(uint n) -> void {
regs.sreg = n;
regs.dreg = n;
regs.sfr.b = 1;
}
//$30-3b(alt0) stw (rN)
//$30-3b(alt1) stb (rN)
auto GSU::instructionStore(uint n) -> void {
regs.ramaddr = regs.r[n];
writeRAMBuffer(regs.ramaddr, regs.sr());
if(!regs.sfr.alt1) writeRAMBuffer(regs.ramaddr ^ 1, regs.sr() >> 8);
regs.reset();
}
//$3c loop
auto GSU::instructionLOOP() -> void {
regs.r[12]--;
regs.sfr.s = (regs.r[12] & 0x8000);
regs.sfr.z = (regs.r[12] == 0);
if(!regs.sfr.z) regs.r[15] = regs.r[13];
regs.reset();
}
//$3d alt1
auto GSU::instructionALT1() -> void {
regs.sfr.b = 0;
regs.sfr.alt1 = 1;
}
//$3e alt2
auto GSU::instructionALT2() -> void {
regs.sfr.b = 0;
regs.sfr.alt2 = 1;
}
//$3f alt3
auto GSU::instructionALT3() -> void {
regs.sfr.b = 0;
regs.sfr.alt1 = 1;
regs.sfr.alt2 = 1;
}
//$40-4b(alt0) ldw (rN)
//$40-4b(alt1) ldb (rN)
auto GSU::instructionLoad(uint n) -> void {
regs.ramaddr = regs.r[n];
regs.dr() = readRAMBuffer(regs.ramaddr);
if(!regs.sfr.alt1) regs.dr() |= readRAMBuffer(regs.ramaddr ^ 1) << 8;
regs.reset();
}
//$4c(alt0) plot
//$4c(alt1) rpix
auto GSU::instructionPLOT_RPIX() -> void {
if(!regs.sfr.alt1) {
plot(regs.r[1], regs.r[2]);
regs.r[1]++;
} else {
regs.dr() = rpix(regs.r[1], regs.r[2]);
regs.sfr.s = (regs.dr() & 0x8000);
regs.sfr.z = (regs.dr() == 0);
}
regs.reset();
}
//$4d swap
auto GSU::instructionSWAP() -> void {
regs.dr() = regs.sr() >> 8 | regs.sr() << 8;
regs.sfr.s = (regs.dr() & 0x8000);
regs.sfr.z = (regs.dr() == 0);
regs.reset();
}
//$4e(alt0) color
//$4e(alt1) cmode
auto GSU::instructionCOLOR_CMODE() -> void {
if(!regs.sfr.alt1) {
regs.colr = color(regs.sr());
} else {
regs.por = regs.sr();
}
regs.reset();
}
//$4f not
auto GSU::instructionNOT() -> void {
regs.dr() = ~regs.sr();
regs.sfr.s = (regs.dr() & 0x8000);
regs.sfr.z = (regs.dr() == 0);
regs.reset();
}
//$50-5f(alt0) add rN
//$50-5f(alt1) adc rN
//$50-5f(alt2) add #N
//$50-5f(alt3) adc #N
auto GSU::instructionADD_ADC(uint n) -> void {
if(!regs.sfr.alt2) n = regs.r[n];
int r = regs.sr() + n + (regs.sfr.alt1 ? regs.sfr.cy : 0);
regs.sfr.ov = ~(regs.sr() ^ n) & (n ^ r) & 0x8000;
regs.sfr.s = (r & 0x8000);
regs.sfr.cy = (r >= 0x10000);
regs.sfr.z = ((uint16)r == 0);
regs.dr() = r;
regs.reset();
}
//$60-6f(alt0) sub rN
//$60-6f(alt1) sbc rN
//$60-6f(alt2) sub #N
//$60-6f(alt3) cmp rN
auto GSU::instructionSUB_SBC_CMP(uint n) -> void {
if(!regs.sfr.alt2 || regs.sfr.alt1) n = regs.r[n];
int r = regs.sr() - n - (!regs.sfr.alt2 && regs.sfr.alt1 ? !regs.sfr.cy : 0);
regs.sfr.ov = (regs.sr() ^ n) & (regs.sr() ^ r) & 0x8000;
regs.sfr.s = (r & 0x8000);
regs.sfr.cy = (r >= 0);
regs.sfr.z = ((uint16)r == 0);
if(!regs.sfr.alt2 || !regs.sfr.alt1) regs.dr() = r;
regs.reset();
}
//$70 merge
auto GSU::instructionMERGE() -> void {
regs.dr() = (regs.r[7] & 0xff00) | (regs.r[8] >> 8);
regs.sfr.ov = (regs.dr() & 0xc0c0);
regs.sfr.s = (regs.dr() & 0x8080);
regs.sfr.cy = (regs.dr() & 0xe0e0);
regs.sfr.z = (regs.dr() & 0xf0f0);
regs.reset();
}
//$71-7f(alt0) and rN
//$71-7f(alt1) bic rN
//$71-7f(alt2) and #N
//$71-7f(alt3) bic #N
auto GSU::instructionAND_BIC(uint n) -> void {
if(!regs.sfr.alt2) n = regs.r[n];
regs.dr() = regs.sr() & (regs.sfr.alt1 ? ~n : n);
regs.sfr.s = (regs.dr() & 0x8000);
regs.sfr.z = (regs.dr() == 0);
regs.reset();
}
//$80-8f(alt0) mult rN
//$80-8f(alt1) umult rN
//$80-8f(alt2) mult #N
//$80-8f(alt3) umult #N
auto GSU::instructionMULT_UMULT(uint n) -> void {
if(!regs.sfr.alt2) n = regs.r[n];
regs.dr() = (!regs.sfr.alt1 ? uint16((int8)regs.sr() * (int8)n) : uint16((uint8)regs.sr() * (uint8)n));
regs.sfr.s = (regs.dr() & 0x8000);
regs.sfr.z = (regs.dr() == 0);
regs.reset();
if(!regs.cfgr.ms0) step(regs.clsr ? 1 : 2);
}
//$90 sbk
auto GSU::instructionSBK() -> void {
writeRAMBuffer(regs.ramaddr ^ 0, regs.sr() >> 0);
writeRAMBuffer(regs.ramaddr ^ 1, regs.sr() >> 8);
regs.reset();
}
//$91-94 link #N
auto GSU::instructionLINK(uint n) -> void {
regs.r[11] = regs.r[15] + n;
regs.reset();
}
//$95 sex
auto GSU::instructionSEX() -> void {
regs.dr() = (int8)regs.sr();
regs.sfr.s = (regs.dr() & 0x8000);
regs.sfr.z = (regs.dr() == 0);
regs.reset();
}
//$96(alt0) asr
//$96(alt1) div2
auto GSU::instructionASR_DIV2() -> void {
regs.sfr.cy = (regs.sr() & 1);
regs.dr() = ((int16)regs.sr() >> 1) + (regs.sfr.alt1 ? ((regs.sr() + 1) >> 16) : 0);
regs.sfr.s = (regs.dr() & 0x8000);
regs.sfr.z = (regs.dr() == 0);
regs.reset();
}
//$97 ror
auto GSU::instructionROR() -> void {
bool carry = (regs.sr() & 1);
regs.dr() = (regs.sfr.cy << 15) | (regs.sr() >> 1);
regs.sfr.s = (regs.dr() & 0x8000);
regs.sfr.cy = carry;
regs.sfr.z = (regs.dr() == 0);
regs.reset();
}
//$98-9d(alt0) jmp rN
//$98-9d(alt1) ljmp rN
auto GSU::instructionJMP_LJMP(uint n) -> void {
if(!regs.sfr.alt1) {
regs.r[15] = regs.r[n];
} else {
regs.pbr = regs.r[n] & 0x7f;
regs.r[15] = regs.sr();
regs.cbr = regs.r[15] & 0xfff0;
flushCache();
}
regs.reset();
}
//$9e lob
auto GSU::instructionLOB() -> void {
regs.dr() = regs.sr() & 0xff;
regs.sfr.s = (regs.dr() & 0x80);
regs.sfr.z = (regs.dr() == 0);
regs.reset();
}
//$9f(alt0) fmult
//$9f(alt1) lmult
auto GSU::instructionFMULT_LMULT() -> void {
uint32 result = (int16)regs.sr() * (int16)regs.r[6];
if(regs.sfr.alt1) regs.r[4] = result;
regs.dr() = result >> 16;
regs.sfr.s = (regs.dr() & 0x8000);
regs.sfr.cy = (result & 0x8000);
regs.sfr.z = (regs.dr() == 0);
regs.reset();
step((regs.cfgr.ms0 ? 3 : 7) * (regs.clsr ? 1 : 2));
}
//$a0-af(alt0) ibt rN,#pp
//$a0-af(alt1) lms rN,(yy)
//$a0-af(alt2) sms (yy),rN
auto GSU::instructionIBT_LMS_SMS(uint n) -> void {
if(regs.sfr.alt1) {
regs.ramaddr = pipe() << 1;
uint8 lo = readRAMBuffer(regs.ramaddr ^ 0) << 0;
regs.r[n] = readRAMBuffer(regs.ramaddr ^ 1) << 8 | lo;
} else if(regs.sfr.alt2) {
regs.ramaddr = pipe() << 1;
writeRAMBuffer(regs.ramaddr ^ 0, regs.r[n] >> 0);
writeRAMBuffer(regs.ramaddr ^ 1, regs.r[n] >> 8);
} else {
regs.r[n] = (int8)pipe();
}
regs.reset();
}
//$b0-bf(b0) from rN
//$b0-bf(b1) moves rN
auto GSU::instructionFROM_MOVES(uint n) -> void {
if(!regs.sfr.b) {
regs.sreg = n;
} else {
regs.dr() = regs.r[n];
regs.sfr.ov = (regs.dr() & 0x80);
regs.sfr.s = (regs.dr() & 0x8000);
regs.sfr.z = (regs.dr() == 0);
regs.reset();
}
}
//$c0 hib
auto GSU::instructionHIB() -> void {
regs.dr() = regs.sr() >> 8;
regs.sfr.s = (regs.dr() & 0x80);
regs.sfr.z = (regs.dr() == 0);
regs.reset();
}
//$c1-cf(alt0) or rN
//$c1-cf(alt1) xor rN
//$c1-cf(alt2) or #N
//$c1-cf(alt3) xor #N
auto GSU::instructionOR_XOR(uint n) -> void {
if(!regs.sfr.alt2) n = regs.r[n];
regs.dr() = (!regs.sfr.alt1 ? (regs.sr() | n) : (regs.sr() ^ n));
regs.sfr.s = (regs.dr() & 0x8000);
regs.sfr.z = (regs.dr() == 0);
regs.reset();
}
//$d0-de inc rN
auto GSU::instructionINC(uint n) -> void {
regs.r[n]++;
regs.sfr.s = (regs.r[n] & 0x8000);
regs.sfr.z = (regs.r[n] == 0);
regs.reset();
}
//$df(alt0) getc
//$df(alt2) ramb
//$df(alt3) romb
auto GSU::instructionGETC_RAMB_ROMB() -> void {
if(!regs.sfr.alt2) {
regs.colr = color(readROMBuffer());
} else if(!regs.sfr.alt1) {
syncRAMBuffer();
regs.rambr = regs.sr() & 0x01;
} else {
syncROMBuffer();
regs.rombr = regs.sr() & 0x7f;
}
regs.reset();
}
//$e0-ee dec rN
auto GSU::instructionDEC(uint n) -> void {
regs.r[n]--;
regs.sfr.s = (regs.r[n] & 0x8000);
regs.sfr.z = (regs.r[n] == 0);
regs.reset();
}
//$ef(alt0) getb
//$ef(alt1) getbh
//$ef(alt2) getbl
//$ef(alt3) getbs
auto GSU::instructionGETB() -> void {
switch(regs.sfr.alt2 << 1 | regs.sfr.alt1 << 0) {
case 0: regs.dr() = readROMBuffer(); break;
case 1: regs.dr() = readROMBuffer() << 8 | (uint8)regs.sr(); break;
case 2: regs.dr() = (regs.sr() & 0xff00) | readROMBuffer(); break;
case 3: regs.dr() = (int8)readROMBuffer(); break;
}
regs.reset();
}
//$f0-ff(alt0) iwt rN,#xx
//$f0-ff(alt1) lm rN,(xx)
//$f0-ff(alt2) sm (xx),rN
auto GSU::instructionIWT_LM_SM(uint n) -> void {
if(regs.sfr.alt1) {
regs.ramaddr = pipe() << 0;
regs.ramaddr |= pipe() << 8;
uint8 lo = readRAMBuffer(regs.ramaddr ^ 0) << 0;
regs.r[n] = readRAMBuffer(regs.ramaddr ^ 1) << 8 | lo;
} else if(regs.sfr.alt2) {
regs.ramaddr = pipe() << 0;
regs.ramaddr |= pipe() << 8;
writeRAMBuffer(regs.ramaddr ^ 0, regs.r[n] >> 0);
writeRAMBuffer(regs.ramaddr ^ 1, regs.r[n] >> 8);
} else {
uint8 lo = pipe();
regs.r[n] = pipe() << 8 | lo;
}
regs.reset();
}
-167
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@@ -1,167 +0,0 @@
struct Register {
uint16 data = 0;
bool modified = false;
inline operator uint() const {
return data;
}
inline auto assign(uint value) -> uint16 {
modified = true;
return data = value;
}
inline auto operator++() { return assign(data + 1); }
inline auto operator--() { return assign(data - 1); }
inline auto operator++(int) { uint r = data; assign(data + 1); return r; }
inline auto operator--(int) { uint r = data; assign(data - 1); return r; }
inline auto operator = (uint i) { return assign(i); }
inline auto operator |= (uint i) { return assign(data | i); }
inline auto operator ^= (uint i) { return assign(data ^ i); }
inline auto operator &= (uint i) { return assign(data & i); }
inline auto operator <<= (uint i) { return assign(data << i); }
inline auto operator >>= (uint i) { return assign(data >> i); }
inline auto operator += (uint i) { return assign(data + i); }
inline auto operator -= (uint i) { return assign(data - i); }
inline auto operator *= (uint i) { return assign(data * i); }
inline auto operator /= (uint i) { return assign(data / i); }
inline auto operator %= (uint i) { return assign(data % i); }
inline auto operator = (const Register& value) { return assign(value); }
Register() = default;
Register(const Register&) = delete;
};
struct SFR {
uint16 data;
BitField<16, 1> z {&data}; //zero flag
BitField<16, 2> cy {&data}; //carry flag
BitField<16, 3> s {&data}; //sign flag
BitField<16, 4> ov {&data}; //overflow flag
BitField<16, 5> g {&data}; //go flag
BitField<16, 6> r {&data}; //ROM r14 flag
BitField<16, 8> alt1{&data}; //alt1 instruction mode
BitField<16, 9> alt2{&data}; //alt2 instruction mode
BitField<16,10> il {&data}; //immediate lower 8-bit flag
BitField<16,11> ih {&data}; //immediate upper 8-bit flag
BitField<16,12> b {&data}; //with flag
BitField<16,15> irq {&data}; //interrupt flag
BitRange<16,8,9> alt{&data}; //composite instruction mode
SFR() = default;
SFR(const SFR&) = delete;
auto operator=(const SFR&) = delete;
inline operator uint() const { return data & 0x9f7e; }
inline auto& operator=(const uint value) { return data = value, *this; }
};
struct SCMR {
uint ht;
bool ron;
bool ran;
uint md;
operator uint() const {
return ((ht >> 1) << 5) | (ron << 4) | (ran << 3) | ((ht & 1) << 2) | (md);
}
auto& operator=(uint data) {
ht = (bool)(data & 0x20) << 1;
ht |= (bool)(data & 0x04) << 0;
ron = data & 0x10;
ran = data & 0x08;
md = data & 0x03;
return *this;
}
};
struct POR {
bool obj;
bool freezehigh;
bool highnibble;
bool dither;
bool transparent;
operator uint() const {
return (obj << 4) | (freezehigh << 3) | (highnibble << 2) | (dither << 1) | (transparent);
}
auto& operator=(uint data) {
obj = data & 0x10;
freezehigh = data & 0x08;
highnibble = data & 0x04;
dither = data & 0x02;
transparent = data & 0x01;
return *this;
}
};
struct CFGR {
bool irq;
bool ms0;
operator uint() const {
return (irq << 7) | (ms0 << 5);
}
auto& operator=(uint data) {
irq = data & 0x80;
ms0 = data & 0x20;
return *this;
}
};
struct Registers {
uint8 pipeline;
uint16 ramaddr;
Register r[16]; //general purpose registers
SFR sfr; //status flag register
uint8 pbr; //program bank register
uint8 rombr; //game pack ROM bank register
bool rambr; //game pack RAM bank register
uint16 cbr; //cache base register
uint8 scbr; //screen base register
SCMR scmr; //screen mode register
uint8 colr; //color register
POR por; //plot option register
bool bramr; //back-up RAM register
uint8 vcr; //version code register
CFGR cfgr; //config register
bool clsr; //clock select register
uint romcl; //clock ticks until romdr is valid
uint8 romdr; //ROM buffer data register
uint ramcl; //clock ticks until ramdr is valid
uint16 ramar; //RAM buffer address register
uint8 ramdr; //RAM buffer data register
uint sreg;
uint dreg;
auto& sr() { return r[sreg]; } //source register (from)
auto& dr() { return r[dreg]; } //destination register (to)
auto reset() -> void {
sfr.b = 0;
sfr.alt1 = 0;
sfr.alt2 = 0;
sreg = 0;
dreg = 0;
}
} regs;
struct Cache {
uint8 buffer[512];
bool valid[32];
} cache;
struct PixelCache {
uint16 offset;
uint8 bitpend;
uint8 data[8];
} pixelcache[2];
@@ -1,56 +0,0 @@
auto GSU::serialize(serializer& s) -> void {
s.integer(regs.pipeline);
s.integer(regs.ramaddr);
for(auto n : range(16)) {
s.integer(regs.r[n].data);
s.integer(regs.r[n].modified);
}
s.integer(regs.sfr.data);
s.integer(regs.pbr);
s.integer(regs.rombr);
s.integer(regs.rambr);
s.integer(regs.cbr);
s.integer(regs.scbr);
s.integer(regs.scmr.ht);
s.integer(regs.scmr.ron);
s.integer(regs.scmr.ran);
s.integer(regs.scmr.md);
s.integer(regs.colr);
s.integer(regs.por.obj);
s.integer(regs.por.freezehigh);
s.integer(regs.por.highnibble);
s.integer(regs.por.dither);
s.integer(regs.por.transparent);
s.integer(regs.bramr);
s.integer(regs.vcr);
s.integer(regs.cfgr.irq);
s.integer(regs.cfgr.ms0);
s.integer(regs.clsr);
s.integer(regs.romcl);
s.integer(regs.romdr);
s.integer(regs.ramcl);
s.integer(regs.ramar);
s.integer(regs.ramdr);
s.integer(regs.sreg);
s.integer(regs.dreg);
s.array(cache.buffer);
s.array(cache.valid);
for(uint n : range(2)) {
s.integer(pixelcache[n].offset);
s.integer(pixelcache[n].bitpend);
s.array(pixelcache[n].data);
}
}
-125
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@@ -1,125 +0,0 @@
#include <emulator/emulator.hpp>
#include "hg51b.hpp"
namespace ares {
#include "registers.cpp"
#include "instruction.cpp"
#include "instructions.cpp"
#include "serialization.cpp"
auto HG51B::lock() -> void {
io.lock = 1;
}
auto HG51B::halt() -> void {
io.halt = 1;
}
auto HG51B::wait(uint24 address) -> uint {
if(isROM(address)) return 1 + io.wait.rom;
if(isRAM(address)) return 1 + io.wait.ram;
return 1;
}
auto HG51B::main() -> void {
if(io.lock) return step(1);
if(io.suspend.enable) return suspend();
if(io.cache.enable) return cache(), void();
if(io.dma.enable) return dma();
if(io.halt) return step(1);
return execute();
}
auto HG51B::step(uint clocks) -> void {
if(io.bus.enable) {
if(io.bus.pending > clocks) {
io.bus.pending -= clocks;
} else {
io.bus.enable = 0;
io.bus.pending = 0;
if(io.bus.reading) io.bus.reading = 0, r.mdr = read(io.bus.address);
if(io.bus.writing) io.bus.writing = 0, write(io.bus.address, r.mdr);
}
}
}
auto HG51B::execute() -> void {
if(!cache()) return halt();
auto opcode = programRAM[io.cache.page][r.pc];
advance();
step(1);
instructionTable[opcode]();
}
auto HG51B::advance() -> void {
if(++r.pc == 0) {
if(io.cache.page == 1) return halt();
io.cache.page = 1;
if(io.cache.lock[io.cache.page]) return halt();
r.pb = r.p;
if(!cache()) return halt();
}
}
auto HG51B::suspend() -> void {
if(!io.suspend.duration) return step(1); //indefinite
step(io.suspend.duration);
io.suspend.duration = 0;
io.suspend.enable = 0;
}
auto HG51B::cache() -> bool {
uint24 address = io.cache.base + r.pb * 512;
//try to use the current page ...
if(io.cache.address[io.cache.page] == address) return io.cache.enable = 0, true;
//if it's not valid, try to use the other page ...
io.cache.page ^= 1;
if(io.cache.address[io.cache.page] == address) return io.cache.enable = 0, true;
//if it's not valid, try to load into the other page ...
if(io.cache.lock[io.cache.page]) io.cache.page ^= 1;
//if it's locked, try to load into the first page ...
if(io.cache.lock[io.cache.page]) return io.cache.enable = 0, false;
io.cache.address[io.cache.page] = address;
for(uint offset : range(256)) {
step(wait(address));
programRAM[io.cache.page][offset].byte(0) = read(address++);
programRAM[io.cache.page][offset].byte(1) = read(address++);
}
return io.cache.enable = 0, true;
}
auto HG51B::dma() -> void {
for(uint offset : range(io.dma.length)) {
uint24 source = io.dma.source + offset;
uint24 target = io.dma.target + offset;
if(isROM(source) && isROM(target)) return lock();
if(isRAM(source) && isRAM(target)) return lock();
step(wait(source));
auto data = read(source);
step(wait(target));
write(target, data);
}
io.dma.enable = 0;
}
auto HG51B::running() const -> bool {
return io.cache.enable || io.dma.enable || io.bus.pending || !io.halt;
}
auto HG51B::busy() const -> bool {
return io.cache.enable || io.dma.enable || io.bus.pending;
}
auto HG51B::power() -> void {
r = {};
io = {};
}
}
-182
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@@ -1,182 +0,0 @@
#pragma once
//Hitachi HG51B S169
namespace ares {
struct HG51B {
//instruction.cpp
HG51B();
//hg51b.cpp
virtual auto step(uint clocks) -> void;
virtual auto isROM(uint24 address) -> bool = 0;
virtual auto isRAM(uint24 address) -> bool = 0;
virtual auto read(uint24 address) -> uint8 = 0;
virtual auto write(uint24 address, uint8 data) -> void = 0;
virtual auto lock() -> void;
virtual auto halt() -> void;
auto wait(uint24 address) -> uint;
auto main() -> void;
auto execute() -> void;
auto advance() -> void;
auto suspend() -> void;
auto cache() -> bool;
auto dma() -> void;
auto running() const -> bool;
auto busy() const -> bool;
auto power() -> void;
//instructions.cpp
auto push() -> void;
auto pull() -> void;
auto algorithmADD(uint24 x, uint24 y) -> uint24;
auto algorithmAND(uint24 x, uint24 y) -> uint24;
auto algorithmASR(uint24 a, uint5 s) -> uint24;
auto algorithmMUL(int24 x, int24 y) -> uint48;
auto algorithmOR(uint24 x, uint24 y) -> uint24;
auto algorithmROR(uint24 a, uint5 s) -> uint24;
auto algorithmSHL(uint24 a, uint5 s) -> uint24;
auto algorithmSHR(uint24 a, uint5 s) -> uint24;
auto algorithmSUB(uint24 x, uint24 y) -> uint24;
auto algorithmSX(uint24 x) -> uint24;
auto algorithmXNOR(uint24 x, uint24 y) -> uint24;
auto algorithmXOR(uint24 x, uint24 y) -> uint24;
auto instructionADD(uint7 reg, uint5 shift) -> void;
auto instructionADD(uint8 imm, uint5 shift) -> void;
auto instructionAND(uint7 reg, uint5 shift) -> void;
auto instructionAND(uint8 imm, uint5 shift) -> void;
auto instructionASR(uint7 reg) -> void;
auto instructionASR(uint5 imm) -> void;
auto instructionCLEAR() -> void;
auto instructionCMP(uint7 reg, uint5 shift) -> void;
auto instructionCMP(uint8 imm, uint5 shift) -> void;
auto instructionCMPR(uint7 reg, uint5 shift) -> void;
auto instructionCMPR(uint8 imm, uint5 shift) -> void;
auto instructionHALT() -> void;
auto instructionINC(uint24& reg) -> void;
auto instructionJMP(uint8 data, uint1 far, const uint1& take) -> void;
auto instructionJSR(uint8 data, uint1 far, const uint1& take) -> void;
auto instructionLD(uint24& out, uint7 reg) -> void;
auto instructionLD(uint15& out, uint4 reg) -> void;
auto instructionLD(uint24& out, uint8 imm) -> void;
auto instructionLD(uint15& out, uint8 imm) -> void;
auto instructionLDL(uint15& out, uint8 imm) -> void;
auto instructionLDH(uint15& out, uint7 imm) -> void;
auto instructionMUL(uint7 reg) -> void;
auto instructionMUL(uint8 imm) -> void;
auto instructionNOP() -> void;
auto instructionOR(uint7 reg, uint5 shift) -> void;
auto instructionOR(uint8 imm, uint5 shift) -> void;
auto instructionRDRAM(uint2 byte, uint24& a) -> void;
auto instructionRDRAM(uint2 byte, uint8 imm) -> void;
auto instructionRDROM(uint24& reg) -> void;
auto instructionRDROM(uint10 imm) -> void;
auto instructionROR(uint7 reg) -> void;
auto instructionROR(uint5 imm) -> void;
auto instructionRTS() -> void;
auto instructionSHL(uint7 reg) -> void;
auto instructionSHL(uint5 imm) -> void;
auto instructionSHR(uint7 reg) -> void;
auto instructionSHR(uint5 imm) -> void;
auto instructionSKIP(uint1 take, const uint1& flag) -> void;
auto instructionST(uint7 reg, uint24& in) -> void;
auto instructionSUB(uint7 reg, uint5 shift) -> void;
auto instructionSUB(uint8 imm, uint5 shift) -> void;
auto instructionSUBR(uint7 reg, uint5 shift) -> void;
auto instructionSUBR(uint8 imm, uint5 shift) -> void;
auto instructionSWAP(uint24& a, uint4 reg) -> void;
auto instructionSXB() -> void;
auto instructionSXW() -> void;
auto instructionWAIT() -> void;
auto instructionWRRAM(uint2 byte, uint24& a) -> void;
auto instructionWRRAM(uint2 byte, uint8 imm) -> void;
auto instructionXNOR(uint7 reg, uint5 shift) -> void;
auto instructionXNOR(uint8 imm, uint5 shift) -> void;
auto instructionXOR(uint7 reg, uint5 shift) -> void;
auto instructionXOR(uint8 imm, uint5 shift) -> void;
//serialization.cpp
auto serialize(serializer&) -> void;
uint16 programRAM[2][256]; //instruction cache
uint24 dataROM[1024];
uint8 dataRAM[3072];
//registers.cpp
auto readRegister(uint7 address) -> uint24;
auto writeRegister(uint7 address, uint24 data) -> void;
protected:
struct Registers {
uint15 pb; //program bank
uint8 pc; //program counter
boolean n; //negative
boolean z; //zero
boolean c; //carry
boolean v; //overflow
boolean i; //interrupt
uint24 a; //accumulator
uint15 p; //page register
uint48 mul; //multiplier
uint24 mdr; //bus memory data register
uint24 rom; //data ROM data buffer
uint24 ram; //data RAM data buffer
uint24 mar; //bus memory address register
uint24 dpr; //data RAM address pointer
uint24 gpr[16]; //general purpose registers
} r;
struct IO {
uint1 lock;
uint1 halt = 1;
uint1 irq; //0 = enable, 1 = disable
uint1 rom = 1; //0 = 2 ROMs, 1 = 1 ROM
uint8 vector[32];
struct Wait {
uint3 rom = 3;
uint3 ram = 3;
} wait;
struct Suspend {
uint1 enable;
uint8 duration;
} suspend;
struct Cache {
uint1 enable;
uint1 page;
uint1 lock[2];
uint24 address[2]; //cache address is in bytes; so 24-bit
uint24 base; //base address is also in bytes
uint15 pb;
uint8 pc;
} cache;
struct DMA {
uint1 enable;
uint24 source;
uint24 target;
uint16 length;
} dma;
struct Bus {
uint1 enable;
uint1 reading;
uint1 writing;
uint4 pending;
uint24 address;
} bus;
} io;
uint23 stack[8];
function<void ()> instructionTable[65536];
};
}
@@ -1,639 +0,0 @@
HG51B::HG51B() {
#define bind(id, name, ...) { \
if(instructionTable[id]) throw; \
instructionTable[id] = [=] { return instruction##name(__VA_ARGS__); }; \
}
#define pattern(s) \
std::integral_constant<uint16_t, bit::test(s)>::value
static const uint5 shifts[] = {0, 1, 8, 16};
//NOP
for(uint10 null : range(1024)) {
auto opcode = pattern("0000 00.. .... ....");
bind(opcode | null << 0, NOP);
}
//???
for(uint10 null : range(1024)) {
auto opcode = pattern("0000 01.. .... ....");
bind(opcode | null << 0, NOP);
}
//JMP imm
for(uint8 data : range(256))
for(uint1 null : range( 2))
for(uint1 far : range( 2)) {
auto opcode = pattern("0000 10f. dddd dddd");
bind(opcode | data << 0 | null << 8 | far << 9, JMP, data, far, 1);
}
//JMP EQ,imm
for(uint8 data : range(256))
for(uint1 null : range( 2))
for(uint1 far : range( 2)) {
auto opcode = pattern("0000 11f. dddd dddd");
bind(opcode | data << 0 | null << 8 | far << 9, JMP, data, far, r.z);
}
//JMP GE,imm
for(uint8 data : range(256))
for(uint1 null : range( 2))
for(uint1 far : range( 2)) {
auto opcode = pattern("0001 00f. dddd dddd");
bind(opcode | data << 0 | null << 8 | far << 9, JMP, data, far, r.c);
}
//JMP MI,imm
for(uint8 data : range(256))
for(uint1 null : range( 2))
for(uint1 far : range( 2)) {
auto opcode = pattern("0001 01f. dddd dddd");
bind(opcode | data << 0 | null << 8 | far << 9, JMP, data, far, r.n);
}
//JMP VS,imm
for(uint8 data : range(256))
for(uint1 null : range( 2))
for(uint1 far : range( 2)) {
auto opcode = pattern("0001 10f. dddd dddd");
bind(opcode | data << 0 | null << 8 | far << 9, JMP, data, far, r.v);
}
//WAIT
for(uint10 null : range(1024)) {
auto opcode = pattern("0001 11.. .... ....");
bind(opcode | null << 0, WAIT);
}
//???
for(uint10 null : range(1024)) {
auto opcode = pattern("0010 00.. .... ....");
bind(opcode | null << 0, NOP);
}
//SKIP V
for(uint1 take : range( 2))
for(uint7 null : range(128)) {
auto opcode = pattern("0010 0100 .... ...t");
bind(opcode | take << 0 | null << 1, SKIP, take, r.v);
}
//SKIP C
for(uint1 take : range( 2))
for(uint7 null : range(128)) {
auto opcode = pattern("0010 0101 .... ...t");
bind(opcode | take << 0 | null << 1, SKIP, take, r.c);
}
//SKIP Z
for(uint1 take : range( 2))
for(uint7 null : range(128)) {
auto opcode = pattern("0010 0110 .... ...t");
bind(opcode | take << 0 | null << 1, SKIP, take, r.z);
}
//SKIP N
for(uint1 take : range( 2))
for(uint7 null : range(128)) {
auto opcode = pattern("0010 0111 .... ...t");
bind(opcode | take << 0 | null << 1, SKIP, take, r.n);
}
//JSR
for(uint8 data : range(256))
for(uint1 null : range( 2))
for(uint1 far : range( 2)) {
auto opcode = pattern("0010 10f. dddd dddd");
bind(opcode | data << 0 | null << 8 | far << 9, JSR, data, far, 1);
}
//JSR EQ,imm
for(uint8 data : range(256))
for(uint1 null : range( 2))
for(uint1 far : range( 2)) {
auto opcode = pattern("0010 11f. dddd dddd");
bind(opcode | data << 0 | null << 8 | far << 9, JSR, data, far, r.z);
}
//JSR GE,imm
for(uint8 data : range(256))
for(uint1 null : range( 2))
for(uint1 far : range( 2)) {
auto opcode = pattern("0011 00f. dddd dddd");
bind(opcode | data << 0 | null << 8 | far << 9, JSR, data, far, r.c);
}
//JSR MI,imm
for(uint8 data : range(256))
for(uint1 null : range( 2))
for(uint1 far : range( 2)) {
auto opcode = pattern("0011 01f. dddd dddd");
bind(opcode | data << 0 | null << 8 | far << 9, JSR, data, far, r.n);
}
//JSR VS,imm
for(uint8 data : range(256))
for(uint1 null : range( 2))
for(uint1 far : range( 2)) {
auto opcode = pattern("0011 10f. dddd dddd");
bind(opcode | data << 0 | null << 8 | far << 9, JSR, data, far, r.v);
}
//RTS
for(uint10 null : range(1024)) {
auto opcode = pattern("0011 11.. .... ....");
bind(opcode | null << 0, RTS);
}
//INC MAR
for(uint10 null : range(1024)) {
auto opcode = pattern("0100 00.. .... ....");
bind(opcode | null << 0, INC, r.mar);
}
//???
for(uint10 null : range(1024)) {
auto opcode = pattern("0100 01.. .... ....");
bind(opcode | null << 0, NOP);
}
//CMPR A<<s,reg
for(uint7 reg : range(128))
for(uint1 null : range( 2))
for(uint2 shift : range( 4)) {
auto opcode = pattern("0100 10ss .rrr rrrr");
bind(opcode | reg << 0 | null << 7 | shift << 8, CMPR, reg, shifts[shift]);
}
//CMPR A<<s,imm
for(uint8 imm : range(256))
for(uint2 shift : range( 4)) {
auto opcode = pattern("0100 11ss iiii iiii");
bind(opcode | imm << 0 | shift << 8, CMPR, imm, shifts[shift]);
}
//CMP A<<s,reg
for(uint7 reg : range(128))
for(uint1 null : range( 2))
for(uint2 shift : range( 4)) {
auto opcode = pattern("0101 00ss .rrr rrrr");
bind(opcode | reg << 0 | null << 7 | shift << 8, CMP, reg, shifts[shift]);
}
//CMP A<<s,imm
for(uint8 imm : range(256))
for(uint2 shift : range( 4)) {
auto opcode = pattern("0101 01ss iiii iiii");
bind(opcode | imm << 0 | shift << 8, CMP, imm, shifts[shift]);
}
//???
for(uint8 null : range(256)) {
auto opcode = pattern("0101 1000 .... ....");
bind(opcode | null << 0, NOP);
}
//SXB A
for(uint8 null : range(256)) {
auto opcode = pattern("0101 1001 .... ....");
bind(opcode | null << 0, SXB);
}
//SXW A
for(uint8 null : range(256)) {
auto opcode = pattern("0101 1010 .... ....");
bind(opcode | null << 0, SXW);
}
//???
for(uint8 null : range(256)) {
auto opcode = pattern("0101 1011 .... ....");
bind(opcode | null << 0, NOP);
}
//???
for(uint10 null : range(1024)) {
auto opcode = pattern("0101 11.. .... ....");
bind(opcode | null << 0, NOP);
}
//LD A,reg
for(uint7 reg : range(128))
for(uint1 null : range( 2)) {
auto opcode = pattern("0110 0000 .rrr rrrr");
bind(opcode | reg << 0 | null << 7, LD, r.a, reg);
}
//LD MDR,reg
for(uint7 reg : range(128))
for(uint1 null : range( 2)) {
auto opcode = pattern("0110 0001 .rrr rrrr");
bind(opcode | reg << 0 | null << 7, LD, r.mdr, reg);
}
//LD MAR,reg
for(uint7 reg : range(128))
for(uint1 null : range( 2)) {
auto opcode = pattern("0110 0010 .rrr rrrr");
bind(opcode | reg << 0 | null << 7, LD, r.mar, reg);
}
//LD P,reg
for(uint4 reg : range(16))
for(uint4 null : range(16)) {
auto opcode = pattern("0110 0011 .... rrrr");
bind(opcode | reg << 0 | null << 4, LD, r.p, reg);
}
//LD A,imm
for(uint8 imm : range(256)) {
auto opcode = pattern("0110 0100 iiii iiii");
bind(opcode | imm << 0, LD, r.a, imm);
}
//LD MDR,imm
for(uint8 imm : range(256)) {
auto opcode = pattern("0110 0101 iiii iiii");
bind(opcode | imm << 0, LD, r.mdr, imm);
}
//LD MAR,imm
for(uint8 imm : range(256)) {
auto opcode = pattern("0110 0110 iiii iiii");
bind(opcode | imm << 0, LD, r.mar, imm);
}
//LD P,imm
for(uint8 imm : range(256)) {
auto opcode = pattern("0110 0111 iiii iiii");
bind(opcode | imm << 0, LD, r.p, imm);
}
//RDRAM 0,A
for(uint8 null : range(256)) {
auto opcode = pattern("0110 1000 .... ....");
bind(opcode | null << 0, RDRAM, 0, r.a);
}
//RDRAM 1,A
for(uint8 null : range(256)) {
auto opcode = pattern("0110 1001 .... ....");
bind(opcode | null << 0, RDRAM, 1, r.a);
}
//RDRAM 2,A
for(uint8 null : range(256)) {
auto opcode = pattern("0110 1010 .... ....");
bind(opcode | null << 0, RDRAM, 2, r.a);
}
//???
for(uint8 null : range(256)) {
auto opcode = pattern("0110 1011 .... ....");
bind(opcode | null << 0, NOP);
}
//RDRAM 0,imm
for(uint8 imm : range(256)) {
auto opcode = pattern("0110 1100 iiii iiii");
bind(opcode | imm << 0, RDRAM, 0, imm);
}
//RDRAM 1,imm
for(uint8 imm : range(256)) {
auto opcode = pattern("0110 1101 iiii iiii");
bind(opcode | imm << 0, RDRAM, 1, imm);
}
//RDRAM 2,imm
for(uint8 imm : range(256)) {
auto opcode = pattern("0110 1110 iiii iiii");
bind(opcode | imm << 0, RDRAM, 2, imm);
}
//???
for(uint8 null : range(256)) {
auto opcode = pattern("0110 1111 .... ....");
bind(opcode | null << 0, NOP);
}
//RDROM A
for(uint10 null : range(1024)) {
auto opcode = pattern("0111 00.. .... ....");
bind(opcode | null << 0, RDROM, r.a);
}
//RDROM imm
for(uint10 imm : range(1024)) {
auto opcode = pattern("0111 01ii iiii iiii");
bind(opcode | imm << 0, RDROM, imm);
}
//???
for(uint10 null : range(1024)) {
auto opcode = pattern("0111 10.. .... ....");
bind(opcode | null << 0, NOP);
}
//LD PL,imm
for(uint8 imm : range(256)) {
auto opcode = pattern("0111 1100 iiii iiii");
bind(opcode | imm << 0, LDL, r.p, imm);
}
//LD PH,imm
for(uint7 imm : range(128))
for(uint1 null : range( 2)) {
auto opcode = pattern("0111 1101 .iii iiii");
bind(opcode | imm << 0 | null << 7, LDH, r.p, imm);
}
//???
for(uint9 null : range(512)) {
auto opcode = pattern("0111 111. .... ....");
bind(opcode | null << 0, NOP);
}
//ADD A<<s,reg
for(uint7 reg : range(128))
for(uint1 null : range( 2))
for(uint2 shift : range( 4)) {
auto opcode = pattern("1000 00ss .rrr rrrr");
bind(opcode | reg << 0 | null << 7 | shift << 8, ADD, reg, shifts[shift]);
}
//ADD A<<s,imm
for(uint8 imm : range(256))
for(uint2 shift : range( 4)) {
auto opcode = pattern("1000 01ss iiii iiii");
bind(opcode | imm << 0 | shift << 8, ADD, imm, shifts[shift]);
}
//SUBR A<<s,reg
for(uint7 reg : range(128))
for(uint1 null : range( 2))
for(uint2 shift : range( 4)) {
auto opcode = pattern("1000 10ss .rrr rrrr");
bind(opcode | reg << 0 | null << 7 | shift << 8, SUBR, reg, shifts[shift]);
}
//SUBR A<<s,imm
for(uint8 imm : range(256))
for(uint2 shift : range( 4)) {
auto opcode = pattern("1000 11ss iiii iiii");
bind(opcode | imm << 0 | shift << 8, SUBR, imm, shifts[shift]);
}
//SUB A<<s,reg
for(uint7 reg : range(128))
for(uint1 null : range( 2))
for(uint2 shift : range( 4)) {
auto opcode = pattern("1001 00ss .rrr rrrr");
bind(opcode | reg << 0 | null << 7 | shift << 8, SUB, reg, shifts[shift]);
}
//SUB A<<s,imm
for(uint8 imm : range(256))
for(uint2 shift : range( 4)) {
auto opcode = pattern("1001 01ss iiii iiii");
bind(opcode | imm << 0 | shift << 8, SUB, imm, shifts[shift]);
}
//MUL reg
for(uint7 reg : range(128))
for(uint3 null : range( 8)) {
auto opcode = pattern("1001 10.. .rrr rrrr");
bind(opcode | reg << 0 | null << 7, MUL, reg);
}
//MUL imm
for(uint8 imm : range(256))
for(uint2 null : range( 4)) {
auto opcode = pattern("1001 11.. iiii iiii");
bind(opcode | imm << 0 | null << 8, MUL, imm);
}
//XNOR A<<s,reg
for(uint7 reg : range(128))
for(uint1 null : range( 2))
for(uint2 shift : range( 4)) {
auto opcode = pattern("1010 00ss .rrr rrrr");
bind(opcode | reg << 0 | null << 7 | shift << 8, XNOR, reg, shifts[shift]);
}
//XNOR A<<s,imm
for(uint8 imm : range(256))
for(uint2 shift : range( 4)) {
auto opcode = pattern("1010 01ss iiii iiii");
bind(opcode | imm << 0 | shift << 8, XNOR, imm, shifts[shift]);
}
//XOR A<<s,reg
for(uint7 reg : range(128))
for(uint1 null : range( 2))
for(uint2 shift : range( 4)) {
auto opcode = pattern("1010 10ss .rrr rrrr");
bind(opcode | reg << 0 | null << 7 | shift << 8, XOR, reg, shifts[shift]);
}
//XOR A<<s,imm
for(uint8 imm : range(256))
for(uint2 shift : range( 4)) {
auto opcode = pattern("1010 11ss iiii iiii");
bind(opcode | imm << 0 | shift << 8, XOR, imm, shifts[shift]);
}
//AND A<<s,reg
for(uint7 reg : range(128))
for(uint1 null : range( 2))
for(uint2 shift : range( 4)) {
auto opcode = pattern("1011 00ss .rrr rrrr");
bind(opcode | reg << 0 | null << 7 | shift << 8, AND, reg, shifts[shift]);
}
//AND A<<s,imm
for(uint8 imm : range(256))
for(uint2 shift : range( 4)) {
auto opcode = pattern("1011 01ss iiii iiii");
bind(opcode | imm << 0 | shift << 8, AND, imm, shifts[shift]);
}
//OR A<<s,reg
for(uint7 reg : range(128))
for(uint1 null : range( 2))
for(uint2 shift : range( 4)) {
auto opcode = pattern("1011 10ss .rrr rrrr");
bind(opcode | reg << 0 | null << 7 | shift << 8, OR, reg, shifts[shift]);
}
//OR A<<s,imm
for(uint8 imm : range(256))
for(uint2 shift : range( 4)) {
auto opcode = pattern("1011 11ss iiii iiii");
bind(opcode | imm << 0 | shift << 8, OR, imm, shifts[shift]);
}
//SHR A,reg
for(uint7 reg : range(128))
for(uint3 null : range( 8)) {
auto opcode = pattern("1100 00.. .rrr rrrr");
bind(opcode | reg << 0 | null << 7, SHR, reg);
}
//SHR A,imm
for(uint5 imm : range(32))
for(uint5 null : range(32)) {
auto opcode = pattern("1100 01.. ...i iiii");
bind(opcode | imm << 0 | null << 5, SHR, imm);
}
//ASR A,reg
for(uint7 reg : range(128))
for(uint3 null : range( 8)) {
auto opcode = pattern("1100 10.. .rrr rrrr");
bind(opcode | reg << 0 | null << 7, ASR, reg);
}
//ASR A,imm
for(uint5 imm : range(32))
for(uint5 null : range(32)) {
auto opcode = pattern("1100 11.. ...i iiii");
bind(opcode | imm << 0 | null << 5, ASR, imm);
}
//ROR A,reg
for(uint7 reg : range(128))
for(uint3 null : range( 8)) {
auto opcode = pattern("1101 00.. .rrr rrrr");
bind(opcode | reg << 0 | null << 7, ROR, reg);
}
//ROR A,imm
for(uint5 imm : range(32))
for(uint5 null : range(32)) {
auto opcode = pattern("1101 01.. ...i iiii");
bind(opcode | imm << 0 | null << 5, ROR, imm);
}
//SHL A,reg
for(uint7 reg : range(128))
for(uint3 null : range( 8)) {
auto opcode = pattern("1101 10.. .rrr rrrr");
bind(opcode | reg << 0 | null << 7, SHL, reg);
}
//SHL A,imm
for(uint5 imm : range(32))
for(uint5 null : range(32)) {
auto opcode = pattern("1101 11.. ...i iiii");
bind(opcode | imm << 0 | null << 5, SHL, imm);
}
//ST reg,A
for(uint7 reg : range(128))
for(uint1 null : range( 2)) {
auto opcode = pattern("1110 0000 .rrr rrrr");
bind(opcode | reg << 0 | null << 7, ST, reg, r.a);
}
//ST reg,MDR
for(uint7 reg : range(128))
for(uint1 null : range( 2)) {
auto opcode = pattern("1110 0001 .rrr rrrr");
bind(opcode | reg << 0 | null << 7, ST, reg, r.mdr);
}
//???
for(uint9 null : range(512)) {
auto opcode = pattern("1110 001. .... ....");
bind(opcode | null << 0, NOP);
}
//???
for(uint10 null : range(1024)) {
auto opcode = pattern("1110 01.. .... ....");
bind(opcode | null << 0, NOP);
}
//WRRAM 0,A
for(uint8 null : range(256)) {
auto opcode = pattern("1110 1000 .... ....");
bind(opcode | null << 0, WRRAM, 0, r.a);
}
//WRRAM 1,A
for(uint8 null : range(256)) {
auto opcode = pattern("1110 1001 .... ....");
bind(opcode | null << 0, WRRAM, 1, r.a);
}
//WRRAM 2,A
for(uint8 null : range(256)) {
auto opcode = pattern("1110 1010 .... ....");
bind(opcode | null << 0, WRRAM, 2, r.a);
}
//???
for(uint8 null : range(256)) {
auto opcode = pattern("1110 1011 .... ....");
bind(opcode | null << 0, NOP);
}
//WRRAM 0,imm
for(uint8 imm : range(256)) {
auto opcode = pattern("1110 1100 iiii iiii");
bind(opcode | imm << 0, WRRAM, 0, imm);
}
//WRRAM 1,imm
for(uint8 imm : range(256)) {
auto opcode = pattern("1110 1101 iiii iiii");
bind(opcode | imm << 0, WRRAM, 1, imm);
}
//WRRAM 2,imm
for(uint8 imm : range(256)) {
auto opcode = pattern("1110 1110 iiii iiii");
bind(opcode | imm << 0, WRRAM, 2, imm);
}
//???
for(uint8 null : range(256)) {
auto opcode = pattern("1110 1111 .... ....");
bind(opcode | null << 0, NOP);
}
//SWAP A,Rn
for(uint4 reg : range(16))
for(uint6 null : range(64)) {
auto opcode = pattern("1111 00.. .... rrrr");
bind(opcode | reg << 0 | null << 4, SWAP, r.a, reg);
}
//???
for(uint10 null : range(1024)) {
auto opcode = pattern("1111 01.. .... ....");
bind(opcode | null << 0, NOP);
}
//CLEAR
for(uint10 null : range(1024)) {
auto opcode = pattern("1111 10.. .... ....");
bind(opcode | null << 0, CLEAR);
}
//HALT
for(uint10 null : range(1024)) {
auto opcode = pattern("1111 11.. .... ....");
bind(opcode | null << 0, HALT);
}
#undef bind
#undef pattern
for(uint opcode : range(65536)) {
if(!instructionTable[opcode]) throw;
}
}
@@ -1,358 +0,0 @@
auto HG51B::push() -> void {
stack[7] = stack[6];
stack[6] = stack[5];
stack[5] = stack[4];
stack[4] = stack[3];
stack[3] = stack[2];
stack[2] = stack[1];
stack[1] = stack[0];
stack[0] = r.pb << 8 | r.pc << 0;
}
auto HG51B::pull() -> void {
auto pc = stack[0];
stack[0] = stack[1];
stack[1] = stack[2];
stack[2] = stack[3];
stack[3] = stack[4];
stack[4] = stack[5];
stack[5] = stack[6];
stack[6] = stack[7];
stack[7] = 0x0000;
r.pb = pc >> 8;
r.pc = pc >> 0;
}
//
auto HG51B::algorithmADD(uint24 x, uint24 y) -> uint24 {
int z = x + y;
r.n = z & 0x800000;
r.z = (uint24)z == 0;
r.c = z > 0xffffff;
r.v = ~(x ^ y) & (x ^ z) & 0x800000;
return z;
}
auto HG51B::algorithmAND(uint24 x, uint24 y) -> uint24 {
x = x & y;
r.n = x & 0x800000;
r.z = x == 0;
return x;
}
auto HG51B::algorithmASR(uint24 a, uint5 s) -> uint24 {
if(s > 24) s = 0;
a = (int24)a >> s;
r.n = a & 0x800000;
r.z = a == 0;
return a;
}
auto HG51B::algorithmMUL(int24 x, int24 y) -> uint48 {
return (int48)x * (int48)y;
}
auto HG51B::algorithmOR(uint24 x, uint24 y) -> uint24 {
x = x | y;
r.n = x & 0x800000;
r.z = x == 0;
return x;
}
auto HG51B::algorithmROR(uint24 a, uint5 s) -> uint24 {
if(s > 24) s = 0;
a = (a >> s) | (a << 24 - s);
r.n = a & 0x800000;
r.z = a == 0;
return a;
}
auto HG51B::algorithmSHL(uint24 a, uint5 s) -> uint24 {
if(s > 24) s = 0;
a = a << s;
r.n = a & 0x800000;
r.z = a == 0;
return a;
}
auto HG51B::algorithmSHR(uint24 a, uint5 s) -> uint24 {
if(s > 24) s = 0;
a = a >> s;
r.n = a & 0x800000;
r.z = a == 0;
return a;
}
auto HG51B::algorithmSUB(uint24 x, uint24 y) -> uint24 {
int z = x - y;
r.n = z & 0x800000;
r.z = (uint24)z == 0;
r.c = z >= 0;
r.v = ~(x ^ y) & (x ^ z) & 0x800000;
return z;
}
auto HG51B::algorithmSX(uint24 x) -> uint24 {
r.n = x & 0x800000;
r.z = x == 0;
return x;
}
auto HG51B::algorithmXNOR(uint24 x, uint24 y) -> uint24 {
x = ~x ^ y;
r.n = x & 0x800000;
r.z = x == 0;
return x;
}
auto HG51B::algorithmXOR(uint24 x, uint24 y) -> uint24 {
x = x ^ y;
r.n = x & 0x800000;
r.z = x == 0;
return x;
}
//
auto HG51B::instructionADD(uint7 reg, uint5 shift) -> void {
r.a = algorithmADD(r.a << shift, readRegister(reg));
}
auto HG51B::instructionADD(uint8 imm, uint5 shift) -> void {
r.a = algorithmADD(r.a << shift, imm);
}
auto HG51B::instructionAND(uint7 reg, uint5 shift) -> void {
r.a = algorithmAND(r.a << shift, readRegister(reg));
}
auto HG51B::instructionAND(uint8 imm, uint5 shift) -> void {
r.a = algorithmAND(r.a << shift, imm);
}
auto HG51B::instructionASR(uint7 reg) -> void {
r.a = algorithmASR(r.a, readRegister(reg));
}
auto HG51B::instructionASR(uint5 imm) -> void {
r.a = algorithmASR(r.a, imm);
}
auto HG51B::instructionCLEAR() -> void {
r.a = 0;
r.p = 0;
r.ram = 0;
r.dpr = 0;
}
auto HG51B::instructionCMP(uint7 reg, uint5 shift) -> void {
algorithmSUB(r.a << shift, readRegister(reg));
}
auto HG51B::instructionCMP(uint8 imm, uint5 shift) -> void {
algorithmSUB(r.a << shift, imm);
}
auto HG51B::instructionCMPR(uint7 reg, uint5 shift) -> void {
algorithmSUB(readRegister(reg), r.a << shift);
}
auto HG51B::instructionCMPR(uint8 imm, uint5 shift) -> void {
algorithmSUB(imm, r.a << shift);
}
auto HG51B::instructionHALT() -> void {
halt();
}
auto HG51B::instructionINC(uint24& reg) -> void {
reg++;
}
auto HG51B::instructionJMP(uint8 data, uint1 far, const uint1& take) -> void {
if(!take) return;
if(far) r.pb = r.p;
r.pc = data;
step(2);
}
auto HG51B::instructionJSR(uint8 data, uint1 far, const uint1& take) -> void {
if(!take) return;
push();
if(far) r.pb = r.p;
r.pc = data;
step(2);
}
auto HG51B::instructionLD(uint24& out, uint7 reg) -> void {
out = readRegister(reg);
}
auto HG51B::instructionLD(uint15& out, uint4 reg) -> void {
out = r.gpr[reg];
}
auto HG51B::instructionLD(uint24& out, uint8 imm) -> void {
out = imm;
}
auto HG51B::instructionLD(uint15& out, uint8 imm) -> void {
out = imm;
}
auto HG51B::instructionLDL(uint15& out, uint8 imm) -> void {
out.bit(0,7) = imm;
}
auto HG51B::instructionLDH(uint15& out, uint7 imm) -> void {
out.bit(8,14) = imm;
}
auto HG51B::instructionMUL(uint7 reg) -> void {
r.mul = algorithmMUL(r.a, readRegister(reg));
}
auto HG51B::instructionMUL(uint8 imm) -> void {
r.mul = algorithmMUL(r.a, imm);
}
auto HG51B::instructionNOP() -> void {
}
auto HG51B::instructionOR(uint7 reg, uint5 shift) -> void {
r.a = algorithmOR(r.a << shift, readRegister(reg));
}
auto HG51B::instructionOR(uint8 imm, uint5 shift) -> void {
r.a = algorithmOR(r.a << shift, imm);
}
auto HG51B::instructionRDRAM(uint2 byte, uint24& a) -> void {
uint12 address = a;
if(address >= 0xc00) address -= 0x400;
r.ram.byte(byte) = dataRAM[address];
}
auto HG51B::instructionRDRAM(uint2 byte, uint8 imm) -> void {
uint12 address = r.dpr + imm;
if(address >= 0xc00) address -= 0x400;
r.ram.byte(byte) = dataRAM[address];
}
auto HG51B::instructionRDROM(uint24& reg) -> void {
r.rom = dataROM[(uint10)reg];
}
auto HG51B::instructionRDROM(uint10 imm) -> void {
r.rom = dataROM[imm];
}
auto HG51B::instructionROR(uint7 reg) -> void {
r.a = algorithmROR(r.a, readRegister(reg));
}
auto HG51B::instructionROR(uint5 imm) -> void {
r.a = algorithmROR(r.a, imm);
}
auto HG51B::instructionRTS() -> void {
pull();
step(2);
}
auto HG51B::instructionSKIP(uint1 take, const uint1& flag) -> void {
if(flag != take) return;
advance();
step(1);
}
auto HG51B::instructionSHL(uint7 reg) -> void {
r.a = algorithmSHL(r.a, readRegister(reg));
}
auto HG51B::instructionSHL(uint5 imm) -> void {
r.a = algorithmSHL(r.a, imm);
}
auto HG51B::instructionSHR(uint7 reg) -> void {
r.a = algorithmSHR(r.a, readRegister(reg));
}
auto HG51B::instructionSHR(uint5 imm) -> void {
r.a = algorithmSHR(r.a, imm);
}
auto HG51B::instructionST(uint7 reg, uint24& in) -> void {
writeRegister(reg, in);
}
auto HG51B::instructionSUB(uint7 reg, uint5 shift) -> void {
r.a = algorithmSUB(r.a << shift, readRegister(reg));
}
auto HG51B::instructionSUB(uint8 imm, uint5 shift) -> void {
r.a = algorithmSUB(r.a << shift, imm);
}
auto HG51B::instructionSUBR(uint7 reg, uint5 shift) -> void {
r.a = algorithmSUB(readRegister(reg), r.a << shift);
}
auto HG51B::instructionSUBR(uint8 imm, uint5 shift) -> void {
r.a = algorithmSUB(imm, r.a << shift);
}
auto HG51B::instructionSWAP(uint24& a, uint4 reg) -> void {
swap(a, r.gpr[reg]);
}
auto HG51B::instructionSXB() -> void {
r.a = algorithmSX((int8)r.a);
}
auto HG51B::instructionSXW() -> void {
r.a = algorithmSX((int16)r.a);
}
auto HG51B::instructionWAIT() -> void {
if(!io.bus.enable) return;
return step(io.bus.pending);
}
auto HG51B::instructionWRRAM(uint2 byte, uint24& a) -> void {
uint12 address = a;
if(address >= 0xc00) address -= 0x400;
switch(byte) {
case 0: dataRAM[address] = r.ram >> 0; break;
case 1: dataRAM[address] = r.ram >> 8; break;
case 2: dataRAM[address] = r.ram >> 16; break;
}
}
auto HG51B::instructionWRRAM(uint2 byte, uint8 imm) -> void {
uint12 address = r.dpr + imm;
if(address >= 0xc00) address -= 0x400;
switch(byte) {
case 0: dataRAM[address] = r.ram >> 0; break;
case 1: dataRAM[address] = r.ram >> 8; break;
case 2: dataRAM[address] = r.ram >> 16; break;
}
}
auto HG51B::instructionXNOR(uint7 reg, uint5 shift) -> void {
r.a = algorithmXNOR(r.a << shift, readRegister(reg));
}
auto HG51B::instructionXNOR(uint8 imm, uint5 shift) -> void {
r.a = algorithmXNOR(r.a << shift, imm);
}
auto HG51B::instructionXOR(uint7 reg, uint5 shift) -> void {
r.a = algorithmXOR(r.a << shift, readRegister(reg));
}
auto HG51B::instructionXOR(uint8 imm, uint5 shift) -> void {
r.a = algorithmXOR(r.a << shift, imm);
}
@@ -1,106 +0,0 @@
auto HG51B::readRegister(uint7 address) -> uint24 {
switch(address) {
case 0x01: return r.mul.bit(24,47);
case 0x02: return r.mul.bit( 0,23);
case 0x03: return r.mdr;
case 0x08: return r.rom;
case 0x0c: return r.ram;
case 0x13: return r.mar;
case 0x1c: return r.dpr;
case 0x20: return r.pc;
case 0x28: return r.p;
case 0x2e:
io.bus.enable = 1;
io.bus.reading = 1;
io.bus.pending = 1 + io.wait.rom;
io.bus.address = r.mar;
return 0x000000;
case 0x2f:
io.bus.enable = 1;
io.bus.reading = 1;
io.bus.pending = 1 + io.wait.ram;
io.bus.address = r.mar;
return 0x000000;
//constant registers
case 0x50: return 0x000000;
case 0x51: return 0xffffff;
case 0x52: return 0x00ff00;
case 0x53: return 0xff0000;
case 0x54: return 0x00ffff;
case 0x55: return 0xffff00;
case 0x56: return 0x800000;
case 0x57: return 0x7fffff;
case 0x58: return 0x008000;
case 0x59: return 0x007fff;
case 0x5a: return 0xff7fff;
case 0x5b: return 0xffff7f;
case 0x5c: return 0x010000;
case 0x5d: return 0xfeffff;
case 0x5e: return 0x000100;
case 0x5f: return 0x00feff;
//general purpose registers
case 0x60: case 0x70: return r.gpr[ 0];
case 0x61: case 0x71: return r.gpr[ 1];
case 0x62: case 0x72: return r.gpr[ 2];
case 0x63: case 0x73: return r.gpr[ 3];
case 0x64: case 0x74: return r.gpr[ 4];
case 0x65: case 0x75: return r.gpr[ 5];
case 0x66: case 0x76: return r.gpr[ 6];
case 0x67: case 0x77: return r.gpr[ 7];
case 0x68: case 0x78: return r.gpr[ 8];
case 0x69: case 0x79: return r.gpr[ 9];
case 0x6a: case 0x7a: return r.gpr[10];
case 0x6b: case 0x7b: return r.gpr[11];
case 0x6c: case 0x7c: return r.gpr[12];
case 0x6d: case 0x7d: return r.gpr[13];
case 0x6e: case 0x7e: return r.gpr[14];
case 0x6f: case 0x7f: return r.gpr[15];
}
return 0x000000; //verified
}
auto HG51B::writeRegister(uint7 address, uint24 data) -> void {
switch(address) {
case 0x01: r.mul.bit(24,47) = data; return;
case 0x02: r.mul.bit( 0,23) = data; return;
case 0x03: r.mdr = data; return;
case 0x08: r.rom = data; return;
case 0x0c: r.ram = data; return;
case 0x13: r.mar = data; return;
case 0x1c: r.dpr = data; return;
case 0x20: r.pc = data; return;
case 0x28: r.p = data; return;
case 0x2e:
io.bus.enable = 1;
io.bus.writing = 1;
io.bus.pending = 1 + io.wait.rom;
io.bus.address = r.mar;
return;
case 0x2f:
io.bus.enable = 1;
io.bus.writing = 1;
io.bus.pending = 1 + io.wait.ram;
io.bus.address = r.mar;
return;
case 0x60: case 0x70: r.gpr[ 0] = data; return;
case 0x61: case 0x71: r.gpr[ 1] = data; return;
case 0x62: case 0x72: r.gpr[ 2] = data; return;
case 0x63: case 0x73: r.gpr[ 3] = data; return;
case 0x64: case 0x74: r.gpr[ 4] = data; return;
case 0x65: case 0x75: r.gpr[ 5] = data; return;
case 0x66: case 0x76: r.gpr[ 6] = data; return;
case 0x67: case 0x77: r.gpr[ 7] = data; return;
case 0x68: case 0x78: r.gpr[ 8] = data; return;
case 0x69: case 0x79: r.gpr[ 9] = data; return;
case 0x6a: case 0x7a: r.gpr[10] = data; return;
case 0x6b: case 0x7b: r.gpr[11] = data; return;
case 0x6c: case 0x7c: r.gpr[12] = data; return;
case 0x6d: case 0x7d: r.gpr[13] = data; return;
case 0x6e: case 0x7e: r.gpr[14] = data; return;
case 0x6f: case 0x7f: r.gpr[15] = data; return;
}
}
@@ -1,57 +0,0 @@
auto HG51B::serialize(serializer& s) -> void {
s.array(programRAM[0]);
s.array(programRAM[1]);
s.array(dataRAM);
s.integer(r.pb);
s.integer(r.pc);
s.boolean(r.n);
s.boolean(r.z);
s.boolean(r.c);
s.boolean(r.v);
s.boolean(r.i);
s.integer(r.a);
s.integer(r.p);
s.integer(r.mul);
s.integer(r.mdr);
s.integer(r.rom);
s.integer(r.ram);
s.integer(r.mar);
s.integer(r.dpr);
s.array(r.gpr);
s.integer(io.lock);
s.integer(io.halt);
s.integer(io.irq);
s.integer(io.rom);
s.array(io.vector);
s.integer(io.wait.rom);
s.integer(io.wait.ram);
s.integer(io.suspend.enable);
s.integer(io.suspend.duration);
s.integer(io.cache.enable);
s.integer(io.cache.page);
s.array(io.cache.lock);
s.array(io.cache.address);
s.integer(io.cache.base);
s.integer(io.cache.pb);
s.integer(io.cache.pc);
s.integer(io.dma.enable);
s.integer(io.dma.source);
s.integer(io.dma.target);
s.integer(io.dma.length);
s.integer(io.bus.enable);
s.integer(io.bus.reading);
s.integer(io.bus.writing);
s.integer(io.bus.pending);
s.integer(io.bus.address);
s.array(stack);
}
@@ -1,184 +0,0 @@
auto HuC6280::algorithmADC(uint8 i) -> uint8 {
int16 o;
if(!D) {
o = A + i + C;
V = ~(A ^ i) & (A ^ o) & 0x80;
} else {
idle();
o = (A & 0x0f) + (i & 0x0f) + (C << 0);
if(o > 0x09) o += 0x06;
C = o > 0x0f;
o = (A & 0xf0) + (i & 0xf0) + (C << 4) + (o & 0x0f);
if(o > 0x9f) o += 0x60;
}
C = o.bit(8);
Z = uint8(o) == 0;
N = o.bit(7);
return o;
}
auto HuC6280::algorithmAND(uint8 i) -> uint8 {
uint8 o = A & i;
Z = o == 0;
N = o.bit(7);
return o;
}
auto HuC6280::algorithmASL(uint8 i) -> uint8 {
C = i.bit(7);
i <<= 1;
Z = i == 0;
N = i.bit(7);
return i;
}
auto HuC6280::algorithmBIT(uint8 i) -> uint8 {
Z = (A & i) == 0;
V = i.bit(6);
N = i.bit(7);
return A;
}
auto HuC6280::algorithmCMP(uint8 i) -> uint8 {
uint9 o = A - i;
C = !o.bit(8);
Z = uint8(o) == 0;
N = o.bit(7);
return A;
}
auto HuC6280::algorithmCPX(uint8 i) -> uint8 {
uint9 o = X - i;
C = !o.bit(8);
Z = uint8(o) == 0;
N = o.bit(7);
return X;
}
auto HuC6280::algorithmCPY(uint8 i) -> uint8 {
uint9 o = Y - i;
C = !o.bit(8);
Z = uint8(o) == 0;
N = o.bit(7);
return Y;
}
auto HuC6280::algorithmDEC(uint8 i) -> uint8 {
i--;
Z = i == 0;
N = i.bit(7);
return i;
}
auto HuC6280::algorithmEOR(uint8 i) -> uint8 {
uint8 o = A ^ i;
Z = o == 0;
N = o.bit(7);
return o;
}
auto HuC6280::algorithmINC(uint8 i) -> uint8 {
i++;
Z = i == 0;
N = i.bit(7);
return i;
}
auto HuC6280::algorithmLD(uint8 i) -> uint8 {
Z = i == 0;
N = i.bit(7);
return i;
}
auto HuC6280::algorithmLSR(uint8 i) -> uint8 {
C = i.bit(0);
i >>= 1;
Z = i == 0;
N = i.bit(7);
return i;
}
auto HuC6280::algorithmORA(uint8 i) -> uint8 {
uint8 o = A | i;
Z = o == 0;
N = o.bit(7);
return o;
}
auto HuC6280::algorithmROL(uint8 i) -> uint8 {
bool c = C;
C = i.bit(7);
i = i << 1 | c;
Z = i == 0;
N = i.bit(7);
return i;
}
auto HuC6280::algorithmROR(uint8 i) -> uint8 {
bool c = C;
C = i.bit(0);
i = c << 7 | i >> 1;
Z = i == 0;
N = i.bit(7);
return i;
}
auto HuC6280::algorithmSBC(uint8 i) -> uint8 {
i ^= 0xff;
int16 o;
if(!D) {
o = A + i + C;
V = ~(A ^ i) & (A ^ o) & 0x80;
} else {
idle();
o = (A & 0x0f) + (i & 0x0f) + (C << 0);
if(o <= 0x0f) o -= 0x06;
C = o > 0x0f;
o = (A & 0xf0) + (i & 0xf0) + (C << 4) + (o & 0x0f);
if(o <= 0xff) o -= 0x60;
}
C = o.bit(8);
Z = uint8(o) == 0;
N = o.bit(7);
return o;
}
auto HuC6280::algorithmTRB(uint8 i) -> uint8 {
Z = (A & i) == 0;
V = i.bit(6);
N = i.bit(7);
return ~A & i;
}
auto HuC6280::algorithmTSB(uint8 i) -> uint8 {
Z = (A & i) == 0;
V = i.bit(6);
N = i.bit(7);
return A | i;
}
//
auto HuC6280::algorithmTAI(uint16& source, uint16& target, bool alternate) -> void {
!alternate ? source++ : source--;
target++;
}
auto HuC6280::algorithmTDD(uint16& source, uint16& target, bool) -> void {
source--;
target--;
}
auto HuC6280::algorithmTIA(uint16& source, uint16& target, bool alternate) -> void {
source++;
!alternate ? target++ : target--;
}
auto HuC6280::algorithmTII(uint16& source, uint16& target, bool) -> void {
source++;
target++;
}
auto HuC6280::algorithmTIN(uint16& source, uint16& target, bool) -> void {
source++;
}
@@ -1,459 +0,0 @@
auto HuC6280::disassembleInstruction() -> string {
uint16 pc = r.pc;
maybe<uint24> effectiveAddress;
string s;
auto readByte = [&]() -> uint8 {
uint8 data = read(MPR[pc >> 13], pc & 0x1fff);
return pc++, data;
};
auto readWord = [&]() -> uint16 {
uint16 data = readByte() << 0;
return data | readByte() << 8;
};
auto computeAbsolute = [&](uint16 address) {
effectiveAddress = MPR[address >> 13] << 16 | address & 0x1fff;
};
auto computeIndirect = [&](uint8 address) {
uint16 absolute = 0;
absolute |= read(MPR[1], address + 0) << 0;
absolute |= read(MPR[1], address + 1) << 8;
effectiveAddress = absolute;
};
auto computeIndirectX = [&](uint8 address) {
uint16 absolute = 0;
absolute |= read(MPR[1], address + r.x + 0) << 0;
absolute |= read(MPR[1], address + r.x + 1) << 8;
effectiveAddress = absolute;
};
auto computeIndirectY = [&](uint8 address) {
uint16 absolute = 0;
absolute |= read(MPR[1], address + 0) << 0;
absolute |= read(MPR[1], address + 1) << 8;
effectiveAddress = absolute + r.y;
};
auto computeIndirectLong = [&](uint16 address, uint8 index = 0) {
uint16 absolute = 0;
absolute |= read(MPR[address >> 13], address & 0x1fff) << 0; address++;
absolute |= read(MPR[address >> 13], address & 0x1fff) << 8;
effectiveAddress = absolute + index;
};
auto computeZeroPage = [&](uint8 address) {
effectiveAddress = MPR[1] << 16 | address;
};
auto absolute = [&]() -> string {
auto address = readWord();
computeAbsolute(address);
return {"$", hex(address, 4L)};
};
auto absoluteX = [&]() -> string {
auto address = readWord();
computeAbsolute(address + r.x);
return {"$", hex(address, 4L), ",x"};
};
auto absoluteY = [&]() -> string {
auto address = readWord();
computeAbsolute(address + r.y);
return {"$", hex(address, 4L), ",y"};
};
auto immediate = [&]() -> string {
return {"#$", hex(readByte(), 2L)};
};
auto indirect = [&]() -> string {
auto indirect = readByte();
computeIndirect(indirect);
return {"($", hex(indirect, 2L), ")"};
};
auto indirectX = [&]() -> string {
auto indirect = readByte();
computeIndirectX(indirect);
return {"($", hex(indirect, 2L), ",x)"};
};
auto indirectY = [&]() -> string {
auto indirect = readByte();
computeIndirectY(indirect);
return {"($", hex(indirect, 2L), "),y"};
};
auto indirectLong = [&]() -> string {
auto address = readWord();
computeIndirectLong(address);
return {"($", hex(address, 4L), ")"};
};
auto indirectLongX = [&]() -> string {
auto address = readWord();
computeIndirectLong(address, r.x);
return {"($", hex(readWord(), 4L), ",x)"};
};
auto relative = [&]() -> string {
auto displacement = readByte();
computeAbsolute(pc + (int8)displacement);
return {"$", hex(pc + (int8)displacement, 4L)};
};
auto zeropage = [&]() -> string {
auto zeroPage = readByte();
computeZeroPage(zeroPage);
return {"$", hex(zeroPage, 2L)};
};
auto zeropageX = [&]() -> string {
auto zeroPage = readByte();
computeZeroPage(zeroPage + r.x);
return {"$", hex(zeroPage, 2L), ",x"};
};
auto zeropageY = [&]() -> string {
auto zeroPage = readByte();
computeZeroPage(zeroPage + r.y);
return {"$", hex(zeroPage, 2L), ",y"};
};
auto immediateAbsolute = [&](string index = "") -> string {
auto immediate = readByte();
auto absolute = readWord();
computeAbsolute(absolute + (index == "x" ? r.x : (uint8)0));
if(index) index.prepend(",");
return {"#$", hex(immediate, 2L), ",$", hex(absolute, 4L), index};
};
auto immediateZeropage = [&](string index = "") -> string {
auto immediate = readByte();
auto zeroPage = readByte();
computeZeroPage(zeroPage + (index == "x" ? r.x : (uint8)0));
if(index) index.prepend(",");
return {"#$", hex(immediate, 2L), ",$", hex(zeroPage, 2L), index};
};
auto zeropageBit = [&](uint3 bit) -> string {
auto zeroPage = readByte();
computeZeroPage(zeroPage);
return {"$", hex(zeroPage, 2L), ":", bit};
};
auto zeropageBitRelative = [&](uint3 bit) -> string {
auto zeroPage = readByte();
auto displacement = readByte();
computeZeroPage(zeroPage);
return {"$", hex(zeroPage, 2L), ":", bit, ",$", hex(pc + (int8)displacement, 4L)};
};
auto blockMove = [&]() -> string {
auto source = readWord();
auto target = readWord();
auto length = readWord();
return {"$", hex(source, 4L), ",$", hex(target, 4L), ",$", hex(length, 4L)};
};
uint8 opcode = readByte();
#define op(id, name, ...) case id: o = {name, " ", vector<string>{__VA_ARGS__}.merge(",")}; break;
string o;
#define U
switch(opcode) {
op(0x00, "brk")
op(0x01, "ora", indirectX())
op(0x02, "sxy")
op(0x03, "st0", immediate())
op(0x04, "tsb", zeropage())
op(0x05, "ora", zeropage())
op(0x06, "asl", zeropage())
op(0x07, "rmb", zeropageBit(0))
op(0x08, "php")
op(0x09, "ora", immediate())
op(0x0a, "asl")
U op(0x0b, "nop", "$0b")
op(0x0c, "tsb", absolute())
op(0x0d, "ora", absolute())
op(0x0e, "asl", absolute())
op(0x0f, "bbr", zeropageBitRelative(0))
op(0x10, "bpl", relative())
op(0x11, "ora", indirectY())
op(0x12, "ora", indirect())
op(0x13, "st1", immediate())
op(0x14, "trb", zeropage())
op(0x15, "ora", zeropageX())
op(0x16, "asl", zeropageX())
op(0x17, "rmb", zeropageBit(1))
op(0x18, "clc")
op(0x19, "ora", absoluteY())
op(0x1a, "inc")
U op(0x1b, "nop", "$1b")
op(0x1c, "trb", absolute())
op(0x1d, "ora", absoluteX())
op(0x1e, "asl", absoluteX())
op(0x1f, "bbr", zeropageBitRelative(1))
op(0x20, "jsr", absolute())
op(0x21, "and", indirectX())
op(0x22, "sax")
op(0x23, "st2", immediate())
op(0x24, "bit", zeropage())
op(0x25, "and", zeropage())
op(0x26, "rol", zeropage())
op(0x27, "rmb", zeropageBit(2))
op(0x28, "plp")
op(0x29, "and", immediate())
op(0x2a, "rol")
U op(0x2b, "nop", "$2b")
op(0x2c, "bit", absolute())
op(0x2d, "and", absolute())
op(0x2e, "rol", absolute())
op(0x2f, "bbr", zeropageBitRelative(2))
op(0x30, "bmi", relative())
op(0x31, "and", indirectY())
op(0x32, "and", indirect())
op(0x34, "bit", zeropageX())
op(0x35, "and", zeropageX())
op(0x36, "rol", zeropageX())
op(0x37, "rmb", zeropageBit(3))
op(0x38, "sec")
op(0x39, "and", absoluteY())
op(0x3a, "dec")
U op(0x3b, "nop", "$3b")
op(0x3c, "bit", absoluteX())
op(0x3d, "and", absoluteX())
op(0x3e, "rol", absoluteX())
op(0x3f, "bbr", zeropageBitRelative(3))
op(0x40, "rti")
op(0x41, "eor", indirectX())
op(0x42, "say")
op(0x43, "tma", immediate())
op(0x44, "bsr", relative())
op(0x45, "eor", zeropage())
op(0x46, "lsr", zeropage())
op(0x47, "rmb", zeropageBit(4))
op(0x48, "pha")
op(0x49, "eor", immediate())
op(0x4a, "lsr")
U op(0x4b, "nop", "$4b")
op(0x4c, "jmp", absolute())
op(0x4d, "eor", absolute())
op(0x4e, "lsr", absolute())
op(0x4f, "bbr", zeropageBitRelative(4))
op(0x50, "bvc", relative())
op(0x51, "eor", indirectY())
op(0x52, "eor", indirect())
op(0x53, "tam", immediate())
op(0x54, "csl")
op(0x55, "eor", zeropageX())
op(0x56, "lsr", zeropageX())
op(0x57, "rmb", zeropageBit(5))
op(0x58, "cli")
op(0x59, "eor", absoluteY())
op(0x5a, "phy")
U op(0x5b, "nop", "$5b")
U op(0x5c, "nop", "$5c")
op(0x5d, "eor", absoluteX())
op(0x5e, "lsr", absoluteX())
op(0x5f, "bbr", zeropageBitRelative(5))
op(0x60, "rts")
op(0x61, "adc", indirectX())
op(0x62, "cla")
U op(0x63, "nop", "$63")
op(0x64, "stz", zeropage())
op(0x65, "adc", zeropage())
op(0x66, "ror", zeropage())
op(0x67, "rmb", zeropageBit(6))
op(0x68, "pla")
op(0x69, "adc", immediate())
op(0x6a, "ror")
U op(0x6b, "nop", "$6b")
op(0x6c, "jmp", indirectLong())
op(0x6d, "adc", absolute())
op(0x6e, "ror", absolute())
op(0x6f, "bbr", zeropageBitRelative(6))
op(0x70, "bvs", relative())
op(0x71, "adc", indirectY())
op(0x72, "adc", indirect())
op(0x73, "tii", blockMove())
op(0x74, "stz", zeropageX())
op(0x75, "adc", zeropageX())
op(0x76, "ror", zeropageX())
op(0x77, "rmb", zeropageBit(7))
op(0x78, "sei")
op(0x79, "adc", absoluteY())
op(0x7a, "ply")
U op(0x7b, "nop", "$7b")
op(0x7c, "jmp", indirectLongX())
op(0x7d, "adc", absoluteX())
op(0x7e, "ror", absoluteX())
op(0x7f, "bbr", zeropageBitRelative(7))
op(0x80, "bra", relative())
op(0x81, "sta", indirectX())
op(0x82, "clx")
op(0x83, "tst", immediateZeropage())
op(0x84, "sty", zeropage())
op(0x85, "sta", zeropage())
op(0x86, "stx", zeropage())
op(0x87, "smb", zeropageBit(0))
op(0x88, "dey")
op(0x89, "bit", immediate())
op(0x8a, "txa")
U op(0x8b, "nop", "$8b")
op(0x8c, "sty", absolute())
op(0x8d, "sta", absolute())
op(0x8e, "stx", absolute())
op(0x8f, "bbs", zeropageBitRelative(0))
op(0x90, "bcc", relative())
op(0x91, "sta", indirectY())
op(0x92, "sta", indirect())
op(0x93, "tst", immediateAbsolute())
op(0x94, "sty", zeropageX())
op(0x95, "sta", zeropageX())
op(0x96, "stx", zeropageY())
op(0x97, "smb", zeropageBit(1))
op(0x98, "tya")
op(0x99, "sta", absoluteY())
op(0x9a, "txs")
U op(0x9b, "nop", "$9b")
op(0x9c, "stz", absolute())
op(0x9d, "sta", absoluteX())
op(0x9e, "stz", absoluteX())
op(0x9f, "bbs", zeropageBitRelative(1))
op(0xa0, "ldy", immediate())
op(0xa1, "lda", indirectX())
op(0xa2, "ldx", immediate())
op(0xa3, "tst", immediateZeropage("x"))
op(0xa4, "ldy", zeropage())
op(0xa5, "lda", zeropage())
op(0xa6, "ldx", zeropage())
op(0xa7, "smb", zeropageBit(2))
op(0xa8, "tay")
op(0xa9, "lda", immediate())
op(0xaa, "tax")
U op(0xab, "nop", "$ab")
op(0xac, "ldy", absolute())
op(0xad, "lda", absolute())
op(0xae, "ldx", absolute())
op(0xaf, "bbs", zeropageBitRelative(2))
op(0xb0, "bcs", relative())
op(0xb1, "lda", indirectY())
op(0xb2, "lda", indirect())
op(0xb3, "tst", immediateAbsolute("x"))
op(0xb4, "ldy", zeropageX())
op(0xb5, "lda", zeropageX())
op(0xb6, "ldx", zeropageY())
op(0xb7, "smb", zeropageBit(3))
op(0xb8, "clv")
op(0xb9, "lda", absoluteY())
op(0xba, "tsx")
U op(0xbb, "nop", "$bb")
op(0xbc, "ldy", absoluteX())
op(0xbd, "lda", absoluteX())
op(0xbe, "ldx", absoluteY())
op(0xbf, "bbs", zeropageBitRelative(3))
op(0xc0, "cpy", immediate())
op(0xc1, "cmp", indirectX())
op(0xc2, "cly")
op(0xc3, "tdd", blockMove())
op(0xc4, "cpy", zeropage())
op(0xc5, "cmp", zeropage())
op(0xc6, "dec", zeropage())
op(0xc7, "smb", zeropageBit(4))
op(0xc8, "iny")
op(0xc9, "cmp", immediate())
op(0xca, "dex")
U op(0xcb, "nop", "$cb")
op(0xcc, "cpy", absolute())
op(0xcd, "cmp", absolute())
op(0xce, "dec", absolute())
op(0xcf, "bbs", zeropageBitRelative(4))
op(0xd0, "bne", relative())
op(0xd1, "cmp", indirectY())
op(0xd2, "cmp", indirect())
op(0xd3, "tin", blockMove())
op(0xd4, "csh")
op(0xd5, "cmp", zeropageX())
op(0xd6, "dec", zeropageX())
op(0xd7, "smb", zeropageBit(5))
op(0xd8, "cld")
op(0xd9, "cmp", absoluteY())
op(0xda, "phx")
U op(0xdb, "nop", "$db")
U op(0xdc, "nop", "$dc")
op(0xdd, "cmp", absoluteX())
op(0xde, "dec", absoluteX())
op(0xdf, "bbs", zeropageBitRelative(5))
op(0xe0, "cpx", immediate())
op(0xe1, "sbc", indirectX())
U op(0xe2, "nop", "$e2")
op(0xe3, "tia", blockMove())
op(0xe4, "cpx", zeropage())
op(0xe5, "sbc", zeropage())
op(0xe6, "inc", zeropage())
op(0xe7, "smb", zeropageBit(6))
op(0xe8, "inx")
op(0xe9, "sbc", immediate())
op(0xea, "nop")
U op(0xeb, "nop", "$eb")
op(0xec, "cpx", absolute())
op(0xed, "sbc", absolute())
op(0xee, "inc", absolute())
op(0xef, "bbs", zeropageBitRelative(6))
op(0xf0, "beq", relative())
op(0xf1, "sbc", indirectY())
op(0xf2, "sbc", indirect())
op(0xf3, "tai", blockMove())
op(0xf4, "set")
op(0xf5, "sbc", zeropageX())
op(0xf6, "inc", zeropageX())
op(0xf7, "smb", zeropageBit(7))
op(0xf8, "sed")
op(0xf9, "sbc", absoluteY())
op(0xfa, "plx")
U op(0xfb, "nop", "$fb")
U op(0xfc, "nop", "$fc")
op(0xfd, "sbc", absoluteX())
op(0xfe, "inc", absoluteX())
op(0xff, "bbs", zeropageBitRelative(7))
}
#undef U
if(!o) o = {"??? (", hex(opcode, 2L), ")"};
s.append(pad(o, -21L, ' '));
if(effectiveAddress) {
s.append(" [", hex(*effectiveAddress, 6L), "]");
} else {
s.append(" ");
}
#undef op
return s;
}
auto HuC6280::disassembleContext() -> string {
string s;
s.append( "A:", hex(A, 2L));
s.append(" X:", hex(X, 2L));
s.append(" Y:", hex(Y, 2L));
s.append(" S:", hex(S, 2L));
s.append(" PC:", hex(PC, 4L));
s.append(" ");
s.append(N ? "N" : "n");
s.append(V ? "V" : "v");
s.append(T ? "T" : "t");
s.append(B ? "B" : "b");
s.append(D ? "D" : "d");
s.append(I ? "I" : "i");
s.append(Z ? "Z" : "z");
s.append(C ? "C" : "c");
s.append(CS == 3 ? "+" : "-");
return s;
}
@@ -1,89 +0,0 @@
#include <emulator/emulator.hpp>
#include "huc6280.hpp"
namespace ares {
#define A r.a
#define X r.x
#define Y r.y
#define S r.s
#define PC r.pc
#define PCH r.pc.byte(1)
#define PCL r.pc.byte(0)
#define MPR r.mpr
#define MPL r.mpl
#define CS r.cs
#define P r.p
#define C r.p.c
#define Z r.p.z
#define I r.p.i
#define D r.p.d
#define B r.p.b
#define T r.p.t
#define V r.p.v
#define N r.p.n
#define EA r.ea
#define L lastCycle();
#define ALU (this->*alu)
#include "memory.cpp"
#include "algorithms.cpp"
#include "instruction.cpp"
#include "instructions.cpp"
#include "disassembler.cpp"
#include "serialization.cpp"
auto HuC6280::power() -> void {
random.entropy(Random::Entropy::High);
A = random();
X = random();
Y = random();
S = random();
PC = 0x0000;
MPR[0] = random();
MPR[1] = random();
MPR[2] = random();
MPR[3] = random();
MPR[4] = random();
MPR[5] = random();
MPR[6] = random();
MPR[7] = 0x00;
MPL = 0x00;
C = random();
Z = random();
I = 1;
D = 0;
B = 1;
T = 0;
V = random();
N = random();
CS = 12;
blockMove = false;
}
#undef A
#undef X
#undef Y
#undef S
#undef PC
#undef PCH
#undef PCL
#undef MPR
#undef MPL
#undef CS
#undef P
#undef C
#undef Z
#undef I
#undef D
#undef B
#undef T
#undef V
#undef N
#undef EA
#undef L
#undef ALU
}
@@ -1,165 +0,0 @@
//Hudson Soft HuC6280
#pragma once
namespace ares {
struct HuC6280 {
virtual auto step(uint clocks) -> void = 0;
virtual auto read(uint8 bank, uint13 address) -> uint8 = 0;
virtual auto write(uint8 bank, uint13 address, uint8 data) -> void = 0;
virtual auto store(uint2 address, uint8 data) -> void = 0;
virtual auto lastCycle() -> void = 0;
//huc6280.cpp
auto power() -> void;
//memory.cpp
inline auto load8(uint8) -> uint8;
inline auto load16(uint16) -> uint8;
inline auto store8(uint8, uint8) -> void;
inline auto store16(uint16, uint8) -> void;
auto idle() -> void;
auto opcode() -> uint8;
auto operand() -> uint8;
auto push(uint8) -> void;
auto pull() -> uint8;
//instructions.cpp
using fp = auto (HuC6280::*)(uint8) -> uint8;
auto algorithmADC(uint8) -> uint8;
auto algorithmAND(uint8) -> uint8;
auto algorithmASL(uint8) -> uint8;
auto algorithmBIT(uint8) -> uint8;
auto algorithmCMP(uint8) -> uint8;
auto algorithmCPX(uint8) -> uint8;
auto algorithmCPY(uint8) -> uint8;
auto algorithmDEC(uint8) -> uint8;
auto algorithmEOR(uint8) -> uint8;
auto algorithmINC(uint8) -> uint8;
auto algorithmLD (uint8) -> uint8;
auto algorithmLSR(uint8) -> uint8;
auto algorithmORA(uint8) -> uint8;
auto algorithmROL(uint8) -> uint8;
auto algorithmROR(uint8) -> uint8;
auto algorithmSBC(uint8) -> uint8;
auto algorithmTRB(uint8) -> uint8;
auto algorithmTSB(uint8) -> uint8;
using bp = auto (HuC6280::*)(uint16&, uint16&, bool) -> void;
auto algorithmTAI(uint16&, uint16&, bool) -> void;
auto algorithmTDD(uint16&, uint16&, bool) -> void;
auto algorithmTIA(uint16&, uint16&, bool) -> void;
auto algorithmTII(uint16&, uint16&, bool) -> void;
auto algorithmTIN(uint16&, uint16&, bool) -> void;
//instruction.cpp
auto interrupt(uint16 vector) -> void;
auto instruction() -> void;
//instructions.cpp
auto instructionAbsoluteModify(fp, uint8 = 0) -> void;
auto instructionAbsoluteRead(fp, uint8&, uint8 = 0) -> void;
auto instructionAbsoluteReadMemory(fp, uint8 = 0) -> void;
auto instructionAbsoluteWrite(uint8, uint8 = 0) -> void;
auto instructionBlockMove(bp) -> void;
auto instructionBranch(bool) -> void;
auto instructionBranchIfBitReset(uint3) -> void;
auto instructionBranchIfBitSet(uint3) -> void;
auto instructionBranchSubroutine() -> void;
auto instructionBreak() -> void;
auto instructionCallAbsolute() -> void;
auto instructionChangeSpeedLow() -> void;
auto instructionChangeSpeedHigh() -> void;
auto instructionClear(uint8&) -> void;
auto instructionClear(bool&) -> void;
auto instructionImmediate(fp, uint8&) -> void;
auto instructionImmediateMemory(fp) -> void;
auto instructionImplied(fp, uint8&) -> void;
auto instructionIndirectRead(fp, uint8&, uint8 = 0) -> void;
auto instructionIndirectReadMemory(fp, uint8 = 0) -> void;
auto instructionIndirectWrite(uint8, uint8 = 0) -> void;
auto instructionIndirectYRead(fp, uint8&) -> void;
auto instructionIndirectYReadMemory(fp) -> void;
auto instructionIndirectYWrite(uint8) -> void;
auto instructionJumpAbsolute() -> void;
auto instructionJumpIndirect(uint8 = 0) -> void;
auto instructionNoOperation() -> void;
auto instructionPull(uint8&) -> void;
auto instructionPullP() -> void;
auto instructionPush(uint8) -> void;
auto instructionResetMemoryBit(uint3) -> void;
auto instructionReturnInterrupt() -> void;
auto instructionReturnSubroutine() -> void;
auto instructionSet(bool&) -> void;
auto instructionSetMemoryBit(uint3) -> void;
auto instructionStoreImplied(uint2) -> void;
auto instructionSwap(uint8&, uint8&) -> void;
auto instructionTestAbsolute(uint8 = 0) -> void;
auto instructionTestZeroPage(uint8 = 0) -> void;
auto instructionTransfer(uint8&, uint8&) -> void;
auto instructionTransferAccumulatorToMPR() -> void;
auto instructionTransferMPRToAccumulator() -> void;
auto instructionTransferXS() -> void;
auto instructionZeroPageModify(fp, uint8 = 0) -> void;
auto instructionZeroPageRead(fp, uint8&, uint8 = 0) -> void;
auto instructionZeroPageReadMemory(fp, uint8 = 0) -> void;
auto instructionZeroPageWrite(uint8, uint8 = 0) -> void;
//disassembler.cpp
auto disassembleInstruction() -> string;
auto disassembleContext() -> string;
//serialization.cpp
auto serialize(serializer&) -> void;
struct Flags {
bool c; //carry
bool z; //zero
bool i; //interrupt disable
bool d; //decimal mode
bool b; //break
bool t; //memory operation
bool v; //overflow
bool n; //negative
inline operator uint8() const {
return c << 0 | z << 1 | i << 2 | d << 3 | b << 4 | t << 5 | v << 6 | n << 7;
}
inline auto operator()() const -> uint8 {
return operator uint8();
}
inline auto& operator=(uint8 data) {
c = data.bit(0);
z = data.bit(1);
i = data.bit(2);
d = data.bit(3);
b = data.bit(4);
t = data.bit(5);
v = data.bit(6);
n = data.bit(7);
return *this;
}
};
struct Registers {
uint8 a;
uint8 x;
uint8 y;
uint8 s;
uint16 pc;
uint8 mpr[8];
uint8 mpl; //MPR latch
uint8 cs; //code speed (3 = fast, 12 = slow)
Flags p;
} r;
bool blockMove;
Random random;
};
}
@@ -1,329 +0,0 @@
#define op(id, name, ...) case id: return instruction##name(__VA_ARGS__);
#define fp(name) &HuC6280::algorithm##name
auto HuC6280::interrupt(uint16 vector) -> void {
idle();
idle();
idle();
push(PC >> 8);
push(PC >> 0);
push(P() & ~0x10); //B flag is clear
I = 1;
D = 0;
T = 0;
PC.byte(0) = load16(vector + 0);
L PC.byte(1) = load16(vector + 1);
}
auto HuC6280::instruction() -> void {
auto code = opcode();
if(T) {
T = 0;
switch(code) {
op(0x01, IndirectReadMemory, fp(ORA), X)
op(0x05, ZeroPageReadMemory, fp(ORA))
op(0x09, ImmediateMemory, fp(ORA))
op(0x0d, AbsoluteReadMemory, fp(ORA))
op(0x11, IndirectYReadMemory, fp(ORA))
op(0x12, IndirectReadMemory, fp(ORA))
op(0x15, ZeroPageReadMemory, fp(ORA), X)
op(0x19, AbsoluteReadMemory, fp(ORA), Y)
op(0x1d, AbsoluteReadMemory, fp(ORA), X)
op(0x21, IndirectReadMemory, fp(AND), X)
op(0x25, ZeroPageReadMemory, fp(AND))
op(0x29, ImmediateMemory, fp(AND))
op(0x2d, AbsoluteReadMemory, fp(AND))
op(0x31, IndirectYReadMemory, fp(AND))
op(0x32, IndirectReadMemory, fp(AND))
op(0x35, ZeroPageReadMemory, fp(AND), X)
op(0x39, AbsoluteReadMemory, fp(AND), Y)
op(0x3d, AbsoluteReadMemory, fp(AND), X)
op(0x41, IndirectReadMemory, fp(EOR), X)
op(0x45, ZeroPageReadMemory, fp(EOR))
op(0x49, ImmediateMemory, fp(EOR))
op(0x4d, AbsoluteReadMemory, fp(EOR))
op(0x51, IndirectYReadMemory, fp(EOR))
op(0x52, IndirectReadMemory, fp(EOR))
op(0x55, ZeroPageReadMemory, fp(EOR), X)
op(0x59, AbsoluteReadMemory, fp(EOR), Y)
op(0x5d, AbsoluteReadMemory, fp(EOR), X)
op(0x61, IndirectReadMemory, fp(ADC), X)
op(0x65, ZeroPageReadMemory, fp(ADC))
op(0x69, ImmediateMemory, fp(ADC))
op(0x6d, AbsoluteReadMemory, fp(ADC))
op(0x71, IndirectYReadMemory, fp(ADC))
op(0x72, IndirectReadMemory, fp(ADC))
op(0x75, ZeroPageReadMemory, fp(ADC), X)
op(0x79, AbsoluteReadMemory, fp(ADC), Y)
op(0x7d, AbsoluteReadMemory, fp(ADC), X)
}
}
#define U
switch(code) {
op(0x00, Break)
op(0x01, IndirectRead, fp(ORA), A, X)
op(0x02, Swap, X, Y)
op(0x03, StoreImplied, 0)
op(0x04, ZeroPageModify, fp(TSB))
op(0x05, ZeroPageRead, fp(ORA), A)
op(0x06, ZeroPageModify, fp(ASL))
op(0x07, ResetMemoryBit, 0)
op(0x08, Push, P)
op(0x09, Immediate, fp(ORA), A)
op(0x0a, Implied, fp(ASL), A)
U op(0x0b, NoOperation)
op(0x0c, AbsoluteModify, fp(TSB))
op(0x0d, AbsoluteRead, fp(ORA), A)
op(0x0e, AbsoluteModify, fp(ASL))
op(0x0f, BranchIfBitReset, 0)
op(0x10, Branch, N == 0)
op(0x11, IndirectYRead, fp(ORA), A)
op(0x12, IndirectRead, fp(ORA), A)
op(0x13, StoreImplied, 1)
op(0x14, ZeroPageModify, fp(TRB))
op(0x15, ZeroPageRead, fp(ORA), A, X)
op(0x16, ZeroPageModify, fp(ASL), X)
op(0x17, ResetMemoryBit, 1)
op(0x18, Clear, C)
op(0x19, AbsoluteRead, fp(ORA), A, Y)
op(0x1a, Implied, fp(INC), A)
U op(0x1b, NoOperation)
op(0x1c, AbsoluteModify, fp(TRB))
op(0x1d, AbsoluteRead, fp(ORA), A, X)
op(0x1e, AbsoluteModify, fp(ASL), X)
op(0x1f, BranchIfBitReset, 1)
op(0x20, CallAbsolute)
op(0x21, IndirectRead, fp(AND), A, X)
op(0x22, Swap, A, X)
op(0x23, StoreImplied, 2)
op(0x24, ZeroPageRead, fp(BIT), A)
op(0x25, ZeroPageRead, fp(AND), A)
op(0x26, ZeroPageModify, fp(ROL))
op(0x27, ResetMemoryBit, 2)
op(0x28, PullP)
op(0x29, Immediate, fp(AND), A)
op(0x2a, Implied, fp(ROL), A)
U op(0x2b, NoOperation)
op(0x2c, AbsoluteRead, fp(BIT), A)
op(0x2d, AbsoluteRead, fp(AND), A)
op(0x2e, AbsoluteModify, fp(ROL))
op(0x2f, BranchIfBitReset, 2)
op(0x30, Branch, N == 1)
op(0x31, IndirectYRead, fp(AND), A)
op(0x32, IndirectRead, fp(AND), A)
U op(0x33, NoOperation)
op(0x34, ZeroPageRead, fp(BIT), A, X)
op(0x35, ZeroPageRead, fp(AND), A, X)
op(0x36, ZeroPageModify, fp(ROL), X)
op(0x37, ResetMemoryBit, 3)
op(0x38, Set, C)
op(0x39, AbsoluteRead, fp(AND), A, Y)
op(0x3a, Implied, fp(DEC), A)
U op(0x3b, NoOperation)
op(0x3c, AbsoluteRead, fp(BIT), A, X)
op(0x3d, AbsoluteRead, fp(AND), A, X)
op(0x3e, AbsoluteModify, fp(ROL), X)
op(0x3f, BranchIfBitReset, 3)
op(0x40, ReturnInterrupt)
op(0x41, IndirectRead, fp(EOR), A, X)
op(0x42, Swap, A, Y)
op(0x43, TransferMPRToAccumulator)
op(0x44, BranchSubroutine)
op(0x45, ZeroPageRead, fp(EOR), A)
op(0x46, ZeroPageModify, fp(LSR))
op(0x47, ResetMemoryBit, 4)
op(0x48, Push, A)
op(0x49, Immediate, fp(EOR), A)
op(0x4a, Implied, fp(LSR), A)
U op(0x4b, NoOperation)
op(0x4c, JumpAbsolute)
op(0x4d, AbsoluteRead, fp(EOR), A)
op(0x4e, AbsoluteModify, fp(LSR))
op(0x4f, BranchIfBitReset, 4)
op(0x50, Branch, V == 0)
op(0x51, IndirectYRead, fp(EOR), A)
op(0x52, IndirectRead, fp(EOR), A)
op(0x53, TransferAccumulatorToMPR)
op(0x54, ChangeSpeedLow)
op(0x55, ZeroPageRead, fp(EOR), A, X)
op(0x56, ZeroPageModify, fp(LSR), X)
op(0x57, ResetMemoryBit, 5)
op(0x58, Clear, I)
op(0x59, AbsoluteRead, fp(EOR), A, Y)
op(0x5a, Push, Y)
U op(0x5b, NoOperation)
U op(0x5c, NoOperation)
op(0x5d, AbsoluteRead, fp(EOR), A, X)
op(0x5e, AbsoluteModify, fp(LSR), X)
op(0x5f, BranchIfBitReset, 5)
op(0x60, ReturnSubroutine)
op(0x61, IndirectRead, fp(ADC), A, X)
op(0x62, Clear, A)
U op(0x63, NoOperation)
op(0x64, ZeroPageWrite, 0)
op(0x65, ZeroPageRead, fp(ADC), A)
op(0x66, ZeroPageModify, fp(ROR))
op(0x67, ResetMemoryBit, 6)
op(0x68, Pull, A)
op(0x69, Immediate, fp(ADC), A)
op(0x6a, Implied, fp(ROR), A)
U op(0x6b, NoOperation)
op(0x6c, JumpIndirect)
op(0x6d, AbsoluteRead, fp(ADC), A)
op(0x6e, AbsoluteModify, fp(ROR))
op(0x6f, BranchIfBitReset, 6)
op(0x70, Branch, V == 1)
op(0x71, IndirectYRead, fp(ADC), A)
op(0x72, IndirectRead, fp(ADC), A)
op(0x73, BlockMove, fp(TII))
op(0x74, ZeroPageWrite, 0, X)
op(0x75, ZeroPageRead, fp(ADC), A, X)
op(0x76, ZeroPageModify, fp(ROR), X)
op(0x77, ResetMemoryBit, 7)
op(0x78, Set, I)
op(0x79, AbsoluteRead, fp(ADC), A, Y)
op(0x7a, Pull, Y)
U op(0x7b, NoOperation)
op(0x7c, JumpIndirect, X)
op(0x7d, AbsoluteRead, fp(ADC), A, X)
op(0x7e, AbsoluteModify, fp(ROR), X)
op(0x7f, BranchIfBitReset, 7)
op(0x80, Branch, 1)
op(0x81, IndirectWrite, A, X)
op(0x82, Clear, X)
op(0x83, TestZeroPage)
op(0x84, ZeroPageWrite, Y)
op(0x85, ZeroPageWrite, A)
op(0x86, ZeroPageWrite, X)
op(0x87, SetMemoryBit, 0)
op(0x88, Implied, fp(DEC), Y)
op(0x89, Immediate, fp(BIT), A)
op(0x8a, Transfer, X, A)
U op(0x8b, NoOperation)
op(0x8c, AbsoluteWrite, Y)
op(0x8d, AbsoluteWrite, A)
op(0x8e, AbsoluteWrite, X)
op(0x8f, BranchIfBitSet, 0)
op(0x90, Branch, C == 0)
op(0x91, IndirectYWrite, A)
op(0x92, IndirectWrite, A)
op(0x93, TestAbsolute)
op(0x94, ZeroPageWrite, Y, X)
op(0x95, ZeroPageWrite, A, X)
op(0x96, ZeroPageWrite, X, Y)
op(0x97, SetMemoryBit, 1)
op(0x98, Transfer, Y, A)
op(0x99, AbsoluteWrite, A, Y)
op(0x9a, TransferXS)
U op(0x9b, NoOperation)
op(0x9c, AbsoluteWrite, 0)
op(0x9d, AbsoluteWrite, A, X)
op(0x9e, AbsoluteWrite, 0, X)
op(0x9f, BranchIfBitSet, 1)
op(0xa0, Immediate, fp(LD), Y)
op(0xa1, IndirectRead, fp(LD), A, X)
op(0xa2, Immediate, fp(LD), X)
op(0xa3, TestZeroPage, X)
op(0xa4, ZeroPageRead, fp(LD), Y)
op(0xa5, ZeroPageRead, fp(LD), A)
op(0xa6, ZeroPageRead, fp(LD), X)
op(0xa7, SetMemoryBit, 2)
op(0xa8, Transfer, A, Y)
op(0xa9, Immediate, fp(LD), A)
op(0xaa, Transfer, A, X)
U op(0xab, NoOperation)
op(0xac, AbsoluteRead, fp(LD), Y)
op(0xad, AbsoluteRead, fp(LD), A)
op(0xae, AbsoluteRead, fp(LD), X)
op(0xaf, BranchIfBitSet, 2)
op(0xb0, Branch, C == 1)
op(0xb1, IndirectYRead, fp(LD), A)
op(0xb2, IndirectRead, fp(LD), A)
op(0xb3, TestAbsolute, X)
op(0xb4, ZeroPageRead, fp(LD), Y, X)
op(0xb5, ZeroPageRead, fp(LD), A, X)
op(0xb6, ZeroPageRead, fp(LD), X, Y)
op(0xb7, SetMemoryBit, 3)
op(0xb8, Clear, V)
op(0xb9, AbsoluteRead, fp(LD), A, Y)
op(0xba, Transfer, S, X)
U op(0xbb, NoOperation)
op(0xbc, AbsoluteRead, fp(LD), Y, X)
op(0xbd, AbsoluteRead, fp(LD), A, X)
op(0xbe, AbsoluteRead, fp(LD), X, Y)
op(0xbf, BranchIfBitSet, 3)
op(0xc0, Immediate, fp(CPY), Y)
op(0xc1, IndirectRead, fp(CMP), A, X)
op(0xc2, Clear, Y)
op(0xc3, BlockMove, fp(TDD))
op(0xc4, ZeroPageRead, fp(CPY), Y)
op(0xc5, ZeroPageRead, fp(CMP), A)
op(0xc6, ZeroPageModify, fp(DEC))
op(0xc7, SetMemoryBit, 4)
op(0xc8, Implied, fp(INC), Y)
op(0xc9, Immediate, fp(CMP), A)
op(0xca, Implied, fp(DEC), X)
U op(0xcb, NoOperation)
op(0xcc, AbsoluteRead, fp(CPY), Y)
op(0xcd, AbsoluteRead, fp(CMP), A)
op(0xce, AbsoluteModify, fp(DEC))
op(0xcf, BranchIfBitSet, 4)
op(0xd0, Branch, Z == 0)
op(0xd1, IndirectYRead, fp(CMP), A)
op(0xd2, IndirectRead, fp(CMP), A)
op(0xd3, BlockMove, fp(TIN))
op(0xd4, ChangeSpeedHigh)
op(0xd5, ZeroPageRead, fp(CMP), A, X)
op(0xd6, ZeroPageModify, fp(DEC), X)
op(0xd7, SetMemoryBit, 5)
op(0xd8, Clear, D)
op(0xd9, AbsoluteRead, fp(CMP), A, Y)
op(0xda, Push, X)
U op(0xdb, NoOperation)
U op(0xdc, NoOperation)
op(0xdd, AbsoluteRead, fp(CMP), A, X)
op(0xde, AbsoluteModify, fp(DEC), X)
op(0xdf, BranchIfBitSet, 5)
op(0xe0, Immediate, fp(CPX), X)
op(0xe1, IndirectRead, fp(SBC), A, X)
U op(0xe2, NoOperation)
op(0xe3, BlockMove, fp(TIA))
op(0xe4, ZeroPageRead, fp(CPX), X)
op(0xe5, ZeroPageRead, fp(SBC), A)
op(0xe6, ZeroPageModify, fp(INC))
op(0xe7, SetMemoryBit, 6)
op(0xe8, Implied, fp(INC), X)
op(0xe9, Immediate, fp(SBC), A)
op(0xea, NoOperation)
U op(0xeb, NoOperation)
op(0xec, AbsoluteRead, fp(CPX), X)
op(0xed, AbsoluteRead, fp(SBC), A)
op(0xee, AbsoluteModify, fp(INC))
op(0xef, BranchIfBitSet, 6)
op(0xf0, Branch, Z == 1)
op(0xf1, IndirectYRead, fp(SBC), A)
op(0xf2, IndirectRead, fp(SBC), A)
op(0xf3, BlockMove, fp(TAI))
op(0xf4, Set, T)
op(0xf5, ZeroPageRead, fp(SBC), A, X)
op(0xf6, ZeroPageModify, fp(INC), X)
op(0xf7, SetMemoryBit, 7)
op(0xf8, Set, D)
op(0xf9, AbsoluteRead, fp(SBC), A, Y)
op(0xfa, Pull, X)
U op(0xfb, NoOperation)
U op(0xfc, NoOperation)
op(0xfd, AbsoluteRead, fp(SBC), A, X)
op(0xfe, AbsoluteModify, fp(INC), X)
op(0xff, BranchIfBitSet, 7)
}
#undef U
}
#undef op
#undef fp
@@ -1,433 +0,0 @@
auto HuC6280::instructionAbsoluteModify(fp alu, uint8 index) -> void {
uint16 absolute = operand();
absolute |= operand() << 8;
idle();
idle();
auto data = ALU(load16(absolute + index));
L store16(absolute + index, data);
}
auto HuC6280::instructionAbsoluteRead(fp alu, uint8& data, uint8 index) -> void {
uint16 absolute = operand();
absolute |= operand() << 8;
idle();
L data = ALU(load16(absolute + index));
}
auto HuC6280::instructionAbsoluteReadMemory(fp alu, uint8 index) -> void {
auto a = A;
A = load8(X);
uint16 absolute = operand();
absolute |= operand() << 8;
idle();
A = ALU(load16(absolute + index));
L store8(X, A);
A = a;
}
auto HuC6280::instructionAbsoluteWrite(uint8 data, uint8 index) -> void {
uint16 absolute = operand();
absolute |= operand() << 8;
idle();
L store16(absolute + index, data);
}
auto HuC6280::instructionBlockMove(bp alu) -> void {
uint16 source = operand();
source |= operand() << 8;
uint16 target = operand();
target |= operand() << 8;
uint16 length = operand();
length |= operand() << 8;
push(Y);
push(A);
push(X);
idle();
idle();
idle();
idle();
blockMove = 1;
bool alternate = 0;
do {
auto data = load16(source);
store16(target, data);
ALU(source, target, alternate);
alternate ^= 1;
idle();
idle();
idle();
idle();
} while(--length);
blockMove = 0;
X = pull();
A = pull();
L Y = pull();
}
auto HuC6280::instructionBranch(bool take) -> void {
if(!take) {
L operand();
} else {
auto displacement = operand();
idle();
L idle();
PC += (int8)displacement;
}
}
auto HuC6280::instructionBranchIfBitReset(uint3 index) -> void {
auto zeropage = operand();
auto displacement = operand();
idle();
idle();
L auto data = load8(zeropage);
if(data.bit(index) == 0) {
idle();
idle();
PC += (int8)displacement;
}
}
auto HuC6280::instructionBranchIfBitSet(uint3 index) -> void {
auto zeropage = operand();
auto displacement = operand();
idle();
idle();
L auto data = load8(zeropage);
if(data.bit(index) == 1) {
idle();
idle();
PC += (int8)displacement;
}
}
auto HuC6280::instructionBranchSubroutine() -> void {
auto displacement = operand();
idle();
idle();
idle();
idle();
push(PC - 1 >> 8);
L push(PC - 1 >> 0);
PC += (int8)displacement;
}
auto HuC6280::instructionBreak() -> void {
operand();
idle();
push(PC >> 8);
push(PC >> 0);
push(P() | 0x10); //B flag is set
I = 1;
D = 0;
T = 0;
PC.byte(0) = load16(0xfff6);
L PC.byte(1) = load16(0xfff7);
}
auto HuC6280::instructionCallAbsolute() -> void {
uint16 address = operand();
address |= operand() << 8;
idle();
idle();
push(PC - 1 >> 8);
L push(PC - 1 >> 0);
PC = address;
}
auto HuC6280::instructionChangeSpeedLow() -> void {
idle();
CS = 12;
L idle();
}
auto HuC6280::instructionChangeSpeedHigh() -> void {
idle();
CS = 3;
L idle();
}
auto HuC6280::instructionClear(uint8& data) -> void {
L idle();
data = 0;
}
auto HuC6280::instructionClear(bool& flag) -> void {
L idle();
flag = 0;
}
auto HuC6280::instructionImmediate(fp alu, uint8& data) -> void {
L data = ALU(operand());
}
auto HuC6280::instructionImmediateMemory(fp alu) -> void {
auto a = A;
A = load8(X);
A = ALU(operand());
L store8(X, A);
A = a;
}
auto HuC6280::instructionImplied(fp alu, uint8& data) -> void {
L idle();
data = ALU(data);
}
auto HuC6280::instructionIndirectRead(fp alu, uint8& data, uint8 index) -> void {
auto zeropage = operand();
idle();
uint16 absolute = load8(zeropage + index + 0);
absolute |= load8(zeropage + index + 1) << 8;
idle();
L data = ALU(load16(absolute));
}
auto HuC6280::instructionIndirectReadMemory(fp alu, uint8 index) -> void {
auto a = A;
A = load8(X);
auto zeropage = operand();
idle();
uint16 absolute = load8(zeropage + index + 0);
absolute |= load8(zeropage + index + 1) << 8;
idle();
A = ALU(load16(absolute));
L store8(X, A);
A = a;
}
auto HuC6280::instructionIndirectWrite(uint8 data, uint8 index) -> void {
auto zeropage = operand();
idle();
uint16 absolute = load8(zeropage + index + 0);
absolute |= load8(zeropage + index + 1) << 8;
idle();
L store16(absolute, data);
}
auto HuC6280::instructionIndirectYRead(fp alu, uint8& data) -> void {
auto zeropage = operand();
idle();
uint16 absolute = load8(zeropage + 0);
absolute |= load8(zeropage + 1) << 8;
idle();
L data = ALU(load16(absolute + Y));
}
auto HuC6280::instructionIndirectYReadMemory(fp alu) -> void {
auto a = A;
A = load8(X);
auto zeropage = operand();
idle();
uint16 absolute = load8(zeropage + 0);
absolute |= load8(zeropage + 1) << 8;
idle();
A = ALU(load16(absolute + Y));
L store8(X, A);
A = a;
}
auto HuC6280::instructionIndirectYWrite(uint8 data) -> void {
auto zeropage = operand();
idle();
uint16 absolute = load8(zeropage + 0);
absolute |= load8(zeropage + 1) << 8;
idle();
L store16(absolute + Y, data);
}
auto HuC6280::instructionJumpAbsolute() -> void {
uint16 address = operand();
address |= operand() << 8;
L idle();
PC = address;
}
auto HuC6280::instructionJumpIndirect(uint8 index) -> void {
uint16 address = operand();
address |= operand() << 8;
idle();
idle();
PC.byte(0) = load16(address + index + 0);
L PC.byte(1) = load16(address + index + 1);
}
auto HuC6280::instructionNoOperation() -> void {
L idle();
}
auto HuC6280::instructionPull(uint8& data) -> void {
idle();
idle();
L data = pull();
Z = data == 0;
N = data.bit(7);
}
auto HuC6280::instructionPullP() -> void {
idle();
idle();
L P = pull() | 0x10; //B flag is set
}
auto HuC6280::instructionPush(uint8 data) -> void {
idle();
L push(data);
}
auto HuC6280::instructionResetMemoryBit(uint3 index) -> void {
auto zeropage = operand();
idle();
idle();
idle();
auto data = load8(zeropage);
data.bit(index) = 0;
L store8(zeropage, data);
}
auto HuC6280::instructionReturnInterrupt() -> void {
idle();
idle();
idle();
P = pull();
PC.byte(0) = pull();
L PC.byte(1) = pull();
}
auto HuC6280::instructionReturnSubroutine() -> void {
idle();
idle();
idle();
PC.byte(0) = pull();
PC.byte(1) = pull();
L idle();
PC++;
}
auto HuC6280::instructionSet(bool& flag) -> void {
L idle();
flag = 1;
}
auto HuC6280::instructionSetMemoryBit(uint3 index) -> void {
auto zeropage = operand();
idle();
idle();
idle();
auto data = load8(zeropage);
data.bit(index) = 1;
L store8(zeropage, data);
}
auto HuC6280::instructionStoreImplied(uint2 index) -> void {
auto data = operand();
idle();
idle();
L store(index, data);
}
auto HuC6280::instructionSwap(uint8& lhs, uint8& rhs) -> void {
idle();
L idle();
swap(lhs, rhs);
}
auto HuC6280::instructionTestAbsolute(uint8 index) -> void {
auto mask = operand();
uint16 absolute = operand();
absolute |= operand() << 8;
idle();
idle();
idle();
L uint8 data = load16(absolute + index);
Z = (data & mask) == 0;
V = data.bit(6);
N = data.bit(7);
}
auto HuC6280::instructionTestZeroPage(uint8 index) -> void {
auto mask = operand();
auto zeropage = operand();
idle();
idle();
idle();
L uint8 data = load8(zeropage + index);
Z = (data & mask) == 0;
V = data.bit(6);
N = data.bit(7);
}
auto HuC6280::instructionTransfer(uint8& source, uint8& target) -> void {
L idle();
target = source;
Z = target == 0;
N = target.bit(7);
}
auto HuC6280::instructionTransferAccumulatorToMPR() -> void {
auto mask = operand();
idle();
idle();
L idle();
for(uint index : range(8)) {
if(mask.bit(index)) MPR[index] = MPL = A;
}
}
auto HuC6280::instructionTransferMPRToAccumulator() -> void {
auto mask = operand();
idle();
L idle();
if(mask) MPL = ~0;
for(uint index : range(8)) {
//exact logic if multiple bits are set is unknown; but it is combinatorial
if(mask.bit(index)) MPL &= MPR[index];
}
//in the event no bits are set, A is loaded with the previously latched value
A = MPL;
}
auto HuC6280::instructionTransferXS() -> void {
L idle();
S = X;
}
auto HuC6280::instructionZeroPageModify(fp alu, uint8 index) -> void {
auto zeropage = operand();
idle();
idle();
auto data = ALU(load8(zeropage + index));
L store8(zeropage + index, data);
}
auto HuC6280::instructionZeroPageRead(fp alu, uint8& data, uint8 index) -> void {
auto zeropage = operand();
idle();
L data = ALU(load8(zeropage + index));
}
auto HuC6280::instructionZeroPageReadMemory(fp alu, uint8 index) -> void {
auto a = A;
A = load8(X);
auto zeropage = operand();
idle();
A = ALU(load8(zeropage + index));
L store8(X, A);
A = a;
}
auto HuC6280::instructionZeroPageWrite(uint8 data, uint8 index) -> void {
auto zeropage = operand();
idle();
L store8(zeropage + index, data);
}
@@ -1,45 +0,0 @@
auto HuC6280::load8(uint8 address) -> uint8 {
step(CS);
return read(MPR[1], address);
}
auto HuC6280::load16(uint16 address) -> uint8 {
step(CS);
return read(MPR[address >> 13], (uint13)address);
}
auto HuC6280::store8(uint8 address, uint8 data) -> void {
step(CS);
return write(MPR[1], address, data);
}
auto HuC6280::store16(uint16 address, uint8 data) -> void {
step(CS);
return write(MPR[address >> 13], (uint13)address, data);
}
//
auto HuC6280::idle() -> void {
step(CS);
}
auto HuC6280::opcode() -> uint8 {
return load16(PC++);
}
auto HuC6280::operand() -> uint8 {
return load16(PC++);
}
//
auto HuC6280::push(uint8 data) -> void {
step(CS);
write(MPR[1], 0x0100 | S--, data);
}
auto HuC6280::pull() -> uint8 {
step(CS);
return read(MPR[1], 0x0100 | ++S);
}
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