Update to bsnes v028 release.

Changelog: - OpenGL (with hardware filter mode support) and SDL video drivers added to Linux port - OpenAL (with speed regulation disable support) and OSS audio drivers added to Linux port [Nach] - SDL input driver (with joypad support) added to Linux port - Emulator pause option added - Added option to select behavior of bsnes when idle: allow input, ignore input or pause emulator - Added support to remap common GUI actions to key/joypad presses on the "Input Configuration" screen - bsnes will now clamp the video output size when it is larger than the screen resolution - GUI library has been enhanced, and renamed to hiro - Fullscreen mode now always centers video, rather than approximates - Fullscreen mode now works correctly on Linux/Openbox - Extra layer of abstraction in src/ui has been removed, as GUI lib unifies all ports anyway - Video, audio and input drivers unified into standard library, named ruby - All custom headers have been merged into a new template library, named nall - Makefile rewritten, vastly improved. Allows quick toggling of compiled-in drivers - Makefile: all object files now placed in /src/obj, binary placed in / - libco greatly enhanced, no longer requires an assembler to build [byuu, blargg, Nach] - libco SJLJ driver added; bsnes should now build on any Unix-derivative now (Solaris, OS X, PS3, etc) [Nach] - Fixed register $213e.d4 PPU1 open bus behavior [zones] - Windows port will not activate screensaver while bsnes is running [Nightcrawler] - Visual C++ target no longer requires stdint.h - And lots more -- mostly code refactoring related
Update to bsnes v027r14? release.
2026-11-10 01:11:44 -10:00 · 2008-02-04 16:16:34 +00:00 · 2008-02-03 10:12:00 +00:00 · 2008-02-02 11:58:00 +00:00 · 2008-02-01 11:46:00 +00:00 · 2008-01-29 07:42:00 +00:00
492 changed files with 27296 additions and 17099 deletions
@@ -1,35 +1,86 @@
-bsnes License:
--------------
-You are free to redistribute this software, and its source code; provided
-there is no charge for the software, nor any charge for the medium used to
-distribute the software. You are also free to use and modify the source code
-as you desire for personal use only. No publically-released derivative works
-of this program nor its source code are permitted without my permission,
-though I will likely grant you permission if you ask me. You must also abide
-by the terms of any additional source code licenses contained within this
-program.
+bsnes (TM) Reference License
+Copyright (C) 2004 - 2008 byuu
+All rights reserved

-Simple DirectMedia Layer License:
---------------------------------
-The Simple DirectMedia Layer (SDL for short) is a cross-platform library
-designed to make it easy to write multi-media software, such as games and
-emulators.
+1. Definitions

-The Simple DirectMedia Layer library source code is available from:
-http://www.libsdl.org/
+The terms "reproduce", "reproduction", "distribute" and "distribution" have the
+same meaning here as under U.S. copyright law.

-This library is distributed under the terms of the GNU LGPL:
-http://www.gnu.org/copyleft/lesser.html
+"The software" means this software package as a whole, including, but not
+limited to, this license, binaries, source code, documentation, and data.

-JMA License:
------------
-JMA is licensed under the GNU GPL. I have received special exemption from
-Nach to use this library in bsnes.
+"You" means the licensee of the software.

-Licensing Exemptions:
---------------------
-libco, the cooperative multithreading library used by bsnes, is public domain.
-You may obtain the latest version at: http://byuu.org/
+"The licensor" means the copyright holder of the software, byuu.

-Richard Bannister has asked for and received my permission to distribute
-a binary-only port of bsnes on the Mac OS X platform.
+2. Grant of Rights
+
+Subject to the terms of this license, the licensor grants you a
+non-transferable, non-exclusive, worldwide, royalty-free copyright license to
+reproduce the software for non-commercial use only, provided the software
+remains unmodified, and there is no charge for the software itself, its' use,
+nor for the medium upon which the software is distributed. The reproduction of
+modified or derivative works of the software is strictly prohibited, except when
+transmitted solely to the licensor.
+
+3. Limitations
+
+This license does not grant you any rights to use the licensor's name, logo or
+trademarks.
+
+The software is provided "as is", and any express or implied warranties,
+including, but not limited to, the implied warranties of merchantability and
+fitness for a particular purpose are disclaimed. In no event shall the licensor
+be liable for any direct, indirect, incidental, special, exemplary, or
+consequential damages (including, but not limited to, procurement of substitute
+goods or services; loss of use, data, or profits; or business interruption)
+however caused and on any theory of liability, whether in contract, strict
+liability, or tort (including negligence or otherwise) arising in any way out of
+the use of the software, even if advised of the possibility of such damage.
+
+In the event that this license is determined to be invalid or unenforceable, the
+Grant of Rights will become null and void, and no rights shall be granted to the
+licensee, within the scope of U.S. copyright law.
+
+4. Exemptions
+
+The software includes the work of other copyright holders, which is licensed
+under different agreements, and exempt from this license. Below is a complete
+list of all such software, and their respective copyright holders and licenses.
+Further, respective source code files are labeled with their correct licensing
+information in the header. The lack of such a header indicates said file falls
+under the bsnes license.
+
+HQ2x filter, author: MaxST, license: LGPL
+JMA decompressor, author: NSRT Team, license: GPL (*)
+NTSC filter, author: blargg, license: LGPL
+zlib decompressor, license: zlib license
+
+(*) bsnes has received an exemption from the copyright holder to use this work.
+
+The software also includes works which have been released to the public domain,
+which are not bound to any licensing agreements. Below is a complete list of all
+such software.
+
+libco, author: byuu
+libui, author: byuu
+OBC-1 emu, author: byuu
+S-DD1 emu, author: Andreas Naive
+S-RTC emu, author: byuu
+
+Any software listed above as exemptions may be relicensed individually from
+bsnes under their respective terms. However, no bsnes licensed portions can be
+combined with such a derivative work.
+
+The software also includes the work of other copyright holders, which is
+licensed under the terms of the bsnes license, with permission to do so from the
+respective authors. Below is a complete list of all such software.
+
+Cx4 emu, authors: anomie, Overload, zsKnight, Nach
+DSP-1 emu, authors: Overload, John Weidman, Neviksti, Andreas Naive
+DSP-2 emu, author: Overload
+DSP-3 emu, authors: John Weidman, Kris Bleakley, Lancer, z80 gaiden
+DSP-4 emu, authors: Dreamer Nom, John Weidman, Kris Bleakley, Nach, z80 gaiden
+S-DSP emu, author: blargg
+ST-010 emu, authors: John Weidman, Matthew Kendora, Overload, Feather
@@ -1,10 +1,10 @@
 bsnes
-Version 0.019
+Version: 0.028
 Author: byuu

-
-General
-------
+--------
+General:
+--------
 bsnes is a Super Nintendo / Super Famicom emulator that began on
 October 14th, 2004.

@@ -13,19 +13,16 @@ http://byuu.org/

 Please see license.txt for important licensing information.

-
-Known Limitations
-----------------
+------------------
+Known Limitations:
+------------------
 S-CPU
- Invalid DMA / HDMA transfers (eg WRAM<>WRAM) not fully emulated
+- Invalid DMA / HDMA transfers not fully emulated
 - Multiply / Divide register delays not implemented

-S-SMP
- Cycle breakdown of opcodes is theoretical, but mostly correct
-
 S-PPU
- Uses scanline-based renderer. This is very inaccurate, but very
-  few games rely on mid-scanline writes to function correctly
+- Uses scanline-based renderer. This is very inaccurate, but few (if any)
+  games rely on mid-scanline writes to function correctly
 - Does not support FirstSprite+Y priority
 - OAM / CGRAM accesses during active display not supported correctly
 - RTO flags are not calculated on frames that are skipped when frameskipping
@@ -33,18 +30,13 @@ S-PPU
  in games that test these flags, eg the SNES Test Program Electronics Test.
  Turning frameskipping off will allow RTO flag calculation on every frame

-S-DSP
- Runs at 32khz. Hardware S-DSP likely runs at 1.024mhz to perform
-  multiple reads / writes per sample. Sound is still output at 32khz,
-  of course
-
 Hardware Bugs
- CPUr1 HDMA crashing bug not emulated
- CPU<>APU communication bus conflicts not emulated
+- S-CPU.r1 HDMA crashing bug not emulated
+- S-CPU<>S-SMP communication bus conflicts not emulated

-
-Unsupported Hardware
--------------------
+---------------------
+Unsupported Hardware:
+---------------------
 SA-1
 Coprocessor used in many popular games, including:
 - Dragon Ball Z Hyper Dimension
@@ -68,31 +60,19 @@ Coprocessor used only by the following games:
 - Momotarou Densetsu Happy
 - Super Power League 4

-DSP-3
-Coprocessor used only by SD Gundam GX
+ST-011
+SETA DSP used only by Quick-move Shogi Match with Nidan Rank-holder Morita

-DSP-4
-Coprocessor used only by Top Gear 3000
-
-ST010 / ST011 / ST018
-SETA coprocessors used by very few games
-
-BS-X (Broadcast Satellite)
-Add-on unit sold only in Japan that played specially-made games that
-were downloaded via satellite
-
-BS-X Flashcart
-Flash cartridge used by BS-X, as well as some standalone games by
-Asciisoft
+ST-018
+SETA RISC CPU used only by Quick-move Shogi Match with Nidan Rank-holder Morita 2

 Super Gameboy
 Cartridge passthrough used for playing Gameboy games

-
-Unsupported controllers
-----------------------
+------------------------
+Unsupported Controllers:
+------------------------
 Mouse
 Super Scope
 Justifier
-Multitap (4-port)
-Multitap (5-port)
+Multitap (4-port and 5-port)
@@ -0,0 +1,303 @@
+include lib/nall/Makefile.string
+
+prefix = /usr/local
+arch = ARCH_LSB
+
+################
+### compiler ###
+################
+
+ifneq ($(findstring gcc,$(compiler)),) # GCC family
+  flags = -O3 -fomit-frame-pointer -Ilib
+  c = $(compiler) $(flags)
+  cpp = $(subst cc,++,$(compiler)) $(flags)
+  obj = o
+  rule = -c $< -o $@
+  link =
+  mkbin = -o$1
+  mkdef = -D$1
+  mklib = -l$1
+else ifeq ($(compiler),cl) # Visual C++
+  flags = /nologo /wd4355 /wd4996 /O2 /EHsc /Ilib
+  c = cl $(flags)
+  cpp = cl $(flags)
+  obj = obj
+  rule = /c $< /Fo$@
+  link = /link
+  mkbin = /Fe$1
+  mkdef = /D$1
+  mklib = $1.lib
+else
+  unknown_compiler: help;
+endif
+
+##########
+### os ###
+##########
+
+ifeq ($(platform),x) # X11
+  ruby = video.glx video.xv video.sdl audio.openal audio.oss audio.ao input.sdl input.x
+  arch += PLATFORM_X
+  link += `pkg-config --libs gtk+-2.0`
+  delete = rm -f $1
+else ifeq ($(platform),win) # Windows
+  ruby = video.direct3d video.directdraw video.gdi audio.directsound input.directinput
+  arch += PLATFORM_WIN
+  link += $(if $(findstring mingw,$(compiler)),-mwindows)
+  link += $(call mklib,uuid)
+  link += $(call mklib,kernel32)
+  link += $(call mklib,user32)
+  link += $(call mklib,gdi32)
+  link += $(call mklib,shell32)
+  link += $(call mklib,winmm)
+  link += $(call mklib,comdlg32)
+  link += $(call mklib,comctl32)
+  delete = $(if $(findstring i586-mingw-gcc,$(compiler)),rm -f $1,del $(subst /,\,$1))
+else
+  unknown_platform: help;
+endif
+
+############
+### ruby ###
+############
+
+link += $(if $(findstring video.direct3d,$(ruby)),$(call mklib,d3d9))
+link += $(if $(findstring video.directdraw,$(ruby)),$(call mklib,ddraw))
+link += $(if $(findstring video.glx,$(ruby)),$(call mklib,GL))
+link += $(if $(findstring video.xv,$(ruby)),$(call mklib,Xv))
+link += $(if $(findstring audio.ao,$(ruby)),$(call mklib,ao))
+link += $(if $(findstring audio.directsound,$(ruby)),$(call mklib,dsound))
+link += $(if $(findstring audio.openal,$(ruby)),$(call mklib,openal) $(call mklib,alut))
+link += $(if $(findstring input.directinput,$(ruby)),$(call mklib,dinput8) $(call mklib,dxguid))
+link += $(if $(findstring input.sdl,$(ruby)),`sdl-config --libs`)
+
+####################################
+### main target and dependencies ###
+####################################
+
+objects = main libco hiro ruby $(ruby) string reader cart cheat \
+  memory smemory cpu scpu smp ssmp bdsp ppu bppu snes \
+  bsx srtc sdd1 cx4 dsp1 dsp2 dsp3 dsp4 obc1 st010
+
+ifeq ($(enable_gzip),true)
+  objects += adler32 compress crc32 deflate gzio inffast inflate inftrees ioapi trees unzip zip zutil
+  flags += $(call mkdef,GZIP_SUPPORT)
+endif
+
+ifeq ($(enable_jma),true)
+  objects += jma jcrc32 lzmadec 7zlzma iiostrm inbyte lzma winout
+  flags += $(call mkdef,JMA_SUPPORT)
+endif
+
+arch := $(patsubst %,$(call mkdef,%),$(arch))
+objects := $(patsubst %,obj/%.$(obj),$(objects))
+rubydef := $(foreach c,$(subst .,_,$(call strupper,$(ruby))),$(call mkdef,$c))
+
+# Windows resource file
+ifeq ($(platform),win)
+  ifeq ($(compiler),cl)
+    objects += obj/bsnes.res
+  else ifneq ($(findstring gcc,$(compiler)),)
+    objects += obj/bsnesrc.$(obj)
+  endif
+endif
+
+################
+### implicit ###
+################
+
+compile = \
+  $(strip \
+    $(if $(filter %.c,$<), \
+      $(c) $1 $(rule), \
+      $(if $(filter %.cpp,$<), \
+        $(cpp) $1 $(rule) \
+      ) \
+    ) \
+  )
+
+%.$(obj): $<; $(call compile)
+
+all: build;
+
+############
+### main ###
+############
+
+obj/main.$(obj): ui/main.cpp config/* lib/nall/* lib/ruby/* ui/* ui/loader/* ui/settings/*
+	$(call compile,$(arch))
+
+obj/bsnes.res     : ui/bsnes.rc; rc /r /foobj/bsnes.res ui/bsnes.rc
+obj/bsnesrc.$(obj): ui/bsnes.rc; windres -I data ui/bsnes.rc obj/bsnesrc.$(obj)
+
+############
+### ruby ###
+############
+
+obj/ruby.$(obj)             : lib/ruby/ruby.cpp lib/ruby/*
+	$(call compile,$(rubydef))
+obj/video.direct3d.$(obj)   : lib/ruby/video/direct3d.cpp lib/ruby/video/direct3d.*
+obj/video.directdraw.$(obj) : lib/ruby/video/directdraw.cpp lib/ruby/video/directdraw.*
+obj/video.gdi.$(obj)        : lib/ruby/video/gdi.cpp lib/ruby/video/gdi.*
+obj/video.glx.$(obj)        : lib/ruby/video/glx.cpp lib/ruby/video/glx.*
+obj/video.sdl.$(obj)        : lib/ruby/video/sdl.cpp lib/ruby/video/sdl.*
+	$(call compile,`sdl-config --cflags`)
+obj/video.xv.$(obj)         : lib/ruby/video/xv.cpp lib/ruby/video/xv.*
+obj/audio.ao.$(obj)         : lib/ruby/audio/ao.cpp lib/ruby/audio/ao.*
+obj/audio.directsound.$(obj): lib/ruby/audio/directsound.cpp lib/ruby/audio/directsound.*
+obj/audio.openal.$(obj)     : lib/ruby/audio/openal.cpp lib/ruby/audio/openal.*
+obj/audio.oss.$(obj)        : lib/ruby/audio/oss.cpp lib/ruby/audio/oss.*
+obj/input.directinput.$(obj): lib/ruby/input/directinput.cpp lib/ruby/input/directinput.*
+obj/input.sdl.$(obj)        : lib/ruby/input/sdl.cpp lib/ruby/input/sdl.*
+	$(call compile,`sdl-config --cflags`)
+obj/input.x.$(obj)          : lib/ruby/input/x.cpp lib/ruby/input/x.*
+
+############
+### hiro ###
+############
+
+obj/hiro.$(obj): lib/hiro.cpp lib/hiro.* lib/hiro_gtk/* lib/hiro_win/*
+	$(call compile,$(if $(call streq,$(platform),x),`pkg-config --cflags gtk+-2.0`))
+
+#################
+### libraries ###
+#################
+
+obj/libco.$(obj): lib/libco.c lib/libco.* lib/libco/*
+obj/string.$(obj): lib/nall/string.cpp lib/nall/*
+
+#################
+### utilities ###
+#################
+
+obj/reader.$(obj): reader/reader.cpp reader/*
+obj/cart.$(obj)  : cart/cart.cpp cart/*
+obj/cheat.$(obj) : cheat/cheat.cpp cheat/*
+
+##############
+### memory ###
+##############
+
+obj/memory.$(obj) : memory/memory.cpp memory/*
+obj/bmemory.$(obj): memory/bmemory/bmemory.cpp memory/bmemory/* memory/bmemory/mapper/*
+obj/smemory.$(obj): memory/smemory/smemory.cpp memory/smemory/* memory/smemory/mapper/*
+
+###########
+### cpu ###
+###########
+
+obj/cpu.$(obj) : cpu/cpu.cpp cpu/*
+obj/scpu.$(obj): cpu/scpu/scpu.cpp cpu/scpu/* cpu/scpu/core/* cpu/scpu/dma/* cpu/scpu/memory/* cpu/scpu/mmio/* cpu/scpu/timing/*
+
+###########
+### smp ###
+###########
+
+obj/smp.$(obj) : smp/smp.cpp smp/*
+obj/ssmp.$(obj): smp/ssmp/ssmp.cpp smp/ssmp/* smp/ssmp/core/* smp/ssmp/memory/* smp/ssmp/timing/*
+
+###########
+### dsp ###
+###########
+
+obj/adsp.$(obj): dsp/adsp/adsp.cpp dsp/adsp/*
+obj/bdsp.$(obj): dsp/bdsp/bdsp.cpp dsp/bdsp/*
+
+###########
+### ppu ###
+###########
+
+obj/ppu.$(obj) : ppu/ppu.cpp ppu/*
+obj/bppu.$(obj): ppu/bppu/bppu.cpp ppu/bppu/*
+
+############
+### snes ###
+############
+
+obj/snes.$(obj): snes/snes.cpp snes/* snes/scheduler/* snes/video/* snes/audio/* snes/input/*
+
+#####################
+### special chips ###
+#####################
+
+obj/bsx.$(obj)  : chip/bsx/bsx.cpp chip/bsx/*
+obj/srtc.$(obj) : chip/srtc/srtc.cpp chip/srtc/*
+obj/sdd1.$(obj) : chip/sdd1/sdd1.cpp chip/sdd1/*
+obj/cx4.$(obj)  : chip/cx4/cx4.cpp chip/cx4/*
+obj/dsp1.$(obj) : chip/dsp1/dsp1.cpp chip/dsp1/*
+obj/dsp2.$(obj) : chip/dsp2/dsp2.cpp chip/dsp2/*
+obj/dsp3.$(obj) : chip/dsp3/dsp3.cpp chip/dsp3/*
+obj/dsp4.$(obj) : chip/dsp4/dsp4.cpp chip/dsp4/*
+obj/obc1.$(obj) : chip/obc1/obc1.cpp chip/obc1/*
+obj/st010.$(obj): chip/st010/st010.cpp chip/st010/*
+
+############
+### zlib ###
+############
+
+obj/adler32.$(obj) : reader/zlib/adler32.c reader/zlib/*
+obj/compress.$(obj): reader/zlib/compress.c reader/zlib/*
+obj/crc32.$(obj)   : reader/zlib/crc32.c reader/zlib/*
+obj/deflate.$(obj) : reader/zlib/deflate.c reader/zlib/*
+obj/gzio.$(obj)    : reader/zlib/gzio.c reader/zlib/*
+obj/inffast.$(obj) : reader/zlib/inffast.c reader/zlib/*
+obj/inflate.$(obj) : reader/zlib/inflate.c reader/zlib/*
+obj/inftrees.$(obj): reader/zlib/inftrees.c reader/zlib/*
+obj/ioapi.$(obj)   : reader/zlib/ioapi.c reader/zlib/*
+obj/trees.$(obj)   : reader/zlib/trees.c reader/zlib/*
+obj/unzip.$(obj)   : reader/zlib/unzip.c reader/zlib/*
+obj/zip.$(obj)     : reader/zlib/zip.c reader/zlib/*
+obj/zutil.$(obj)   : reader/zlib/zutil.c reader/zlib/*
+
+###########
+### jma ###
+###########
+
+obj/jma.$(obj)    : reader/jma/jma.cpp reader/jma/*
+obj/jcrc32.$(obj) : reader/jma/jcrc32.cpp reader/jma/*
+obj/lzmadec.$(obj): reader/jma/lzmadec.cpp reader/jma/*
+obj/7zlzma.$(obj) : reader/jma/7zlzma.cpp reader/jma/*
+obj/iiostrm.$(obj): reader/jma/iiostrm.cpp reader/jma/*
+obj/inbyte.$(obj) : reader/jma/inbyte.cpp reader/jma/*
+obj/lzma.$(obj)   : reader/jma/lzma.cpp reader/jma/*
+obj/winout.$(obj) : reader/jma/winout.cpp reader/jma/*
+
+###############
+### targets ###
+###############
+
+build: $(objects)
+	$(strip $(cpp) $(call mkbin,../bsnes) $(objects) $(link))
+
+install:
+	install -m 755 ../bsnes $(prefix)/bin/bsnes
+	install -m 644 data/bsnes.png $(prefix)/share/icons/bsnes.png
+
+clean:
+	-@$(call delete,obj/*.$(obj))
+	-@$(call delete,*.res)
+	-@$(call delete,*.pgd)
+	-@$(call delete,*.pgc)
+	-@$(call delete,*.ilk)
+	-@$(call delete,*.pdb)
+	-@$(call delete,*.manifest)
+
+help:
+	@echo "Usage: $(MAKE) platform=(os) compiler=(cc) [options]"
+	@echo ""
+	@echo "Supported platforms:"
+	@echo "  x   - Linux / BSD (x86, x86-64)"
+	@echo "  win - Windows (x86, x86-64)"
+	@echo ""
+	@echo "Supported compilers:"
+	@echo "  gcc              - GCC compiler"
+	@echo "  mingw32-gcc      - MinGW compiler"
+	@echo "  i586-mingw32-gcc - MinGW cross compiler"
+	@echo "  cl               - Visual C++"
+	@echo ""
+	@echo "Available options:"
+	@echo "  enable_gzip=[true|false] - Enable ZIP / GZ support (default=false)"
+	@echo "  enable_jma=[true|false]  - Enable JMA support (default=false)"
+	@echo ""
+	@echo "Example: $(MAKE) platform=x compiler=gcc enable_gzip=true"
+	@echo ""
@@ -1,72 +1,55 @@
-#define BSNES_VERSION "0.019"
-#define BSNES_TITLE   "bsnes v" BSNES_VERSION
-
-#define MEMCORE bMemBus
-#define CPUCORE sCPU
-#define SMPCORE sSMP
-#define DSPCORE bDSP
-#define PPUCORE bPPU
-
-//#define FAVOR_ACCURACY
-#define FAVOR_SPEED
-
-//game genie + pro action replay code support (~1-3% speed hit)
-#define CHEAT_SYSTEM
-
-//enable GZ, ZIP format support
-//#define GZIP_SUPPORT
-
-//enable JMA support
-//#define JMA_SUPPORT
-
-//snes core polymorphism
-//(allow runtime cpu/smp/dsp/ppu/bus selection, ~10% speed hit)
-//#define POLYMORPHISM
-
-#if defined(PROCESSOR_X86)
-  #define ARCH_LSB
-#elif defined(PROCESSOR_X86_64)
-  #define ARCH_LSB
-#elif defined(PROCESSOR_G5)
-  #define ARCH_MSB
-#else
-  #error "unsupported processor"
-#endif
-
-#include "lib/libbase.h"
-#include "lib/libsort.h"
-#include "lib/libco_x86.h"
-#include "lib/libarray.h"
-#include "lib/libvector.h"
-#include "lib/libfile.h"
-#include "lib/libups.h"
-#include "lib/libstring.h"
-#include "lib/libconfig.h"
-
-inline uint16 read16(uint8 *addr, uint pos) {
-#ifdef ARCH_LSB
-  return *((uint16*)(addr + pos));
-#else
-  return (addr[pos]) | (addr[pos + 1] << 8);
-#endif
-}
-
-//platform-specific global functions
-void alert(char *, ...);
-void dprintf(char *, ...);
-void dprintf(uint, char *, ...);
-
-namespace source {
-  enum {
-    none = 0,
-    debug,
-    cpu,
-    ppu,
-    smp,
-    dsp,
-    bus,
-  };
-};
-
-//various class interfaces
-#include "interface.h"
+#define BSNES_VERSION "0.028"
+#define BSNES_TITLE   "bsnes v" BSNES_VERSION
+
+#define BUSCORE sBus
+#define CPUCORE sCPU
+#define SMPCORE sSMP
+#define DSPCORE bDSP
+#define PPUCORE bPPU
+
+//FAVOR_ACCURACY calculates RTO during frameskip, whereas FAVOR_SPEED does not
+//frameskip offers near-zero speedup if RTO is calculated
+//accuracy is not affected by this define when frameskipping is off
+
+//#define FAVOR_ACCURACY
+#define FAVOR_SPEED
+
+//game genie + pro action replay code support (~1-3% speed hit)
+#define CHEAT_SYSTEM
+
+#if !defined(ARCH_LSB) && !defined(ARCH_MSB)
+  #define ARCH_LSB //guess
+#endif
+
+#include <nall/algorithm.hpp>
+#include <nall/array.hpp>
+#include <nall/bit.hpp>
+#include <nall/config.hpp>
+#include <nall/function.hpp>
+#include <nall/new.hpp>
+#include <nall/sort.hpp>
+#include <nall/string.hpp>
+#include <nall/vector.hpp>
+using namespace nall;
+
+#include <libco.h>
+#include <bbase.h>
+
+//platform-specific global functions
+void alert(const char*, ...);
+void dprintf(const char*, ...);
+void dprintf(uint, const char*, ...);
+
+namespace source {
+  enum {
+    none = 0,
+    debug,
+    cpu,
+    ppu,
+    smp,
+    dsp,
+    bus,
+  };
+};
+
+#include "interface.h"
@@ -1,156 +1,135 @@
 #include "../base.h"
-#include "database.cpp"
+
+#include "cart_normal.cpp"
+#include "cart_bsx.cpp"
+#include "cart_bsc.cpp"
+#include "cart_st.cpp"

 #include "cart_file.cpp"
 #include "cart_header.cpp"

+namespace memory {
+  MappedRAM cartrom, cartram;
+  MappedRAM bscram;
+  MappedRAM stArom, stAram;
+  MappedRAM stBrom, stBram;
+};
+
 Cartridge cartridge;

-#include "cart_normal.cpp"
-#include "cart_st.cpp"
-#include "cart_stdual.cpp"
+Cartridge::MemoryMapper Cartridge::mapper() { return info.mapper; }
+Cartridge::Region Cartridge::region() { return info.region; }

-void Cartridge::load_begin(uint cart_type) {
-  if(loaded() == true)return;
+bool Cartridge::loaded() { return cart.loaded; }
+
+void Cartridge::load_begin(CartridgeType cart_type) {
+  cart.rom = cart.ram = 0;
+  bs.ram   = 0;
+  stA.rom  = stA.ram  = 0;
+  stB.rom  = stB.ram  = 0;
+
+  cart.rom_size = cart.ram_size = 0;
+  bs.ram_size   = 0;
+  stA.rom_size  = stA.ram_size  = 0;
+  stB.rom_size  = stB.ram_size  = 0;

  info.type = cart_type;

-  info.srtc = false;
-  info.sdd1 = false;
-  info.c4   = false;
-  info.dsp1 = false;
-  info.dsp2 = false;
-  info.obc1 = false;
+  info.bsxbase  = false;
+  info.bsxcart  = false;
+  info.bsxflash = false;
+  info.st       = false;

-  info.dsp1_mapper = 0;
+  info.superfx = false;
+  info.sa1     = false;
+  info.srtc    = false;
+  info.sdd1    = false;
+  info.cx4     = false;
+  info.dsp1    = false;
+  info.dsp2    = false;
+  info.dsp3    = false;
+  info.dsp4    = false;
+  info.obc1    = false;
+  info.st010   = false;
+  info.st011   = false;
+  info.st018   = false;
+
+  info.dsp1_mapper = DSP1Unmapped;

  info.header_index = 0xffc0;
-  info.mapper = PCB;
-  strcpy(info.name, "");
-  strcpy(info.pcb,  "");
+  info.mapper = LoROM;
+  info.name[0] = 0;
  info.region = NTSC;
-  info.cart_mmio = false;

  info.rom_size = 0;
  info.ram_size = 0;
-
-  file.count = 0;
-  for(int i = 0; i < 8; i++) {
-    strcpy(file.rom_name[i], "");
-    strcpy(file.ram_name[i], "");
-    file.rom_size[i] = 0;
-    file.ram_size[i] = 0;
-    file.rom_data[i] = 0;
-    file.ram_data[i] = 0;
-  }
 }

-void Cartridge::load(const char *rom_fn) {
-  if(!rom_fn || !*rom_fn)return;
+void Cartridge::load_end() {
+  memory::cartrom.map(cart.rom, cart.rom_size);
+  memory::cartram.map(cart.ram, cart.ram_size);
+  memory::bscram.map(bs.ram, bs.ram_size);
+  memory::stArom.map(stA.rom, stA.rom_size);
+  memory::stAram.map(stA.ram, stA.ram_size);
+  memory::stBrom.map(stB.rom, stB.rom_size);
+  memory::stBram.map(stB.ram, stB.ram_size);

-char fn[4096], ram_fn[4096];
-  strcpy(fn, rom_fn);
-//correct folder slashes
-  for(int i = strlen(fn) - 1; i >= 0; i--) {
-    if(fn[i] == '\\')fn[i] = '/';
-  }
+  memory::cartrom.write_protect(true);
+  memory::cartram.write_protect(false);
+  memory::bscram.write_protect(true);
+  memory::stArom.write_protect(true);
+  memory::stAram.write_protect(false);
+  memory::stBrom.write_protect(true);
+  memory::stBram.write_protect(false);

-uint i = file.count++;
-  strcpy(file.rom_name[i], fn);
-
-  strcpy(fn, rom_fn);
-//remove ROM extension
-  for(int i = strlen(fn) - 1; i >= 0; i--) {
-    if(fn[i] == '.') {
-      fn[i] = 0;
-      break;
-    }
-  }
-
-  if(i == 0) {
-    strcpy(file.patch_name, fn);
-    strcat(file.patch_name, ".ups");
-  }
-  strcpy(fn, strptr(config::file_updatepath(fn, config::path.save)));
-  if(i == 0) {
-    strcpy(file.cheat_name, fn);
-    strcat(file.cheat_name, ".cht");
-  }
-  strcpy(file.ram_name[i], fn);
-  strcat(file.ram_name[i], ".");
-  strcat(file.ram_name[i], config::path.save_ext);
-}
-
-bool Cartridge::load_end() {
-  for(int i = 0; i < file.count; i++) {
-    load_file(file.rom_name[i], file.rom_data[i], file.rom_size[i]);
-  }
-
-  if(fexists(file.cheat_name) == true) {
+char fn[PATH_MAX];
+  strcpy(fn, cart.fn);
+  modify_extension(fn, "cht");
+  if(fexists(fn)) {
    cheat.clear();
-    cheat.load(file.cheat_name);
+    cheat.load(fn);
  }

-  switch(info.type) {
-  case CART_NORMAL: {
-    load_rom_normal();
-    load_ram_normal();
-  } break;
-  case CART_ST: {
-    load_rom_st();
-    load_ram_st();
-  } break;
-  case CART_STDUAL: {
-    load_rom_stdual();
-    load_ram_stdual();
-  } break;
-  }
-
-  cart_loaded = true;
-  r_mem->load_cart();
-  return true;
+  cart.loaded = true;
+  bus.load_cart();
 }

 bool Cartridge::unload() {
-  if(cart_loaded == false)return false;
+  if(cart.loaded == false) return false;

-  r_mem->unload_cart();
+  bus.unload_cart();

  switch(info.type) {
-  case CART_NORMAL: {
-    save_ram_normal();
-  } break;
-  case CART_ST: {
-    save_ram_st();
-  } break;
-  case CART_STDUAL: {
-    save_ram_stdual();
-  } break;
+    case CartridgeNormal: unload_cart_normal(); break;
+    case CartridgeBSX: unload_cart_bsx(); break;
+    case CartridgeBSC: unload_cart_bsc(); break;
+    case CartridgeSufamiTurbo: unload_cart_st(); break;
  }

-  SafeFree(rom);
-  SafeFree(ram);
+  safe_free(cart.rom);
+  safe_free(cart.ram);
+  safe_free(bs.ram);
+  safe_free(stA.rom);
+  safe_free(stA.ram);
+  safe_free(stB.rom);
+  safe_free(stB.ram);

-  if(cheat.count() > 0 || fexists(file.cheat_name) == true) {
-    cheat.save(file.cheat_name);
+char fn[PATH_MAX];
+  strcpy(fn, cart.fn);
+  modify_extension(fn, "cht");
+  if(cheat.count() > 0 || fexists(fn)) {
+    cheat.save(fn);
    cheat.clear();
  }

-  cart_loaded = false;
+  cart.loaded = false;
  return true;
 }

 Cartridge::Cartridge() {
-  load_database();
-
-  cart_loaded = false;
-
-  rom = 0;
-  ram = 0;
+  cart.loaded = false;
 }

 Cartridge::~Cartridge() {
-  if(cart_loaded == true) {
-    unload();
-  }
+  if(cart.loaded == true) unload();
 }
@@ -1,125 +1,142 @@
 class Cartridge {
 public:
+  enum CartridgeType {
+    CartridgeNormal,
+    CartridgeBSX,
+    CartridgeBSC,
+    CartridgeSufamiTurbo,
+  };

-/*****
- * cart database
- *****/
+  enum HeaderField {
+    CART_NAME = 0x00,
+    MAPPER    = 0x15,
+    ROM_TYPE  = 0x16,
+    ROM_SIZE  = 0x17,
+    RAM_SIZE  = 0x18,
+    REGION    = 0x19,
+    COMPANY   = 0x1a,
+    VERSION   = 0x1b,
+    ICKSUM    = 0x1c,
+    CKSUM     = 0x1e,
+    RESL      = 0x3c,
+    RESH      = 0x3d,
+  };

-#include "db/db.h"
-db_item dbi;
-  uint8 *database;
-  uint   database_size;
-  uint   database_blocksize;
-  void   load_database();
-  bool   read_database();
+  enum Region {
+    NTSC,
+    PAL,
+  };

-//
+  enum MemoryMapper {
+    LoROM,
+    HiROM,
+    ExLoROM,
+    ExHiROM,
+    BSXROM,
+    BSCLoROM,
+    BSCHiROM,
+    STROM,
+  };

-enum {
-  CART_NORMAL,
-  CART_ST,
-  CART_STDUAL,
-};
+  enum DSP1MemoryMapper {
+    DSP1Unmapped,
+    DSP1LoROM1MB,
+    DSP1LoROM2MB,
+    DSP1HiROM,
+  };

-bool cart_loaded;
+  struct {
+    bool loaded;
+    char fn[PATH_MAX];
+    uint8 *rom, *ram;
+    uint rom_size, ram_size;
+  } cart;

-uint8 rom_header[512], *rom, *ram;
+  struct {
+    char fn[PATH_MAX];
+    uint8 *ram;
+    uint ram_size;
+  } bs;

-enum {
-//header fields
-  CART_NAME = 0x00,
-  MAPPER    = 0x15,
-  ROM_TYPE  = 0x16,
-  ROM_SIZE  = 0x17,
-  RAM_SIZE  = 0x18,
-  REGION    = 0x19,
-  LICENSE   = 0x1a,
-  VERSION   = 0x1b,
-  ICKSUM    = 0x1c,
-  CKSUM     = 0x1e,
-  RESL      = 0x3c,
-  RESH      = 0x3d,
+  struct {
+    char fn[PATH_MAX];
+    uint8 *rom, *ram;
+    uint rom_size, ram_size;
+  } stA, stB;

-//regions
-  NTSC = 0,
-  PAL  = 1,
+  struct {
+    CartridgeType type;

-//memory mappers
-  PCB     = 0x00,
-  LOROM   = 0x20,
-  HIROM   = 0x21,
-  EXLOROM = 0x22,
-  EXHIROM = 0x25,
+    uint32 crc32;
+    char name[128];

-//special chip memory mappers
-  DSP1_LOROM_1MB = 1,
-  DSP1_LOROM_2MB = 2,
-  DSP1_HIROM     = 3,
-};
+    Region region;
+    MemoryMapper mapper;
+    uint rom_size;
+    uint ram_size;

-struct {
-  uint   count;
-  char   cheat_name[4096], patch_name[4096];
-  char   rom_name[8][4096], ram_name[8][4096];
-  uint   rom_size[8],  ram_size[8];
-  uint8 *rom_data[8], *ram_data[8];
-} file;
+    bool bsxbase;
+    bool bsxcart;
+    bool bsxflash;
+    bool st;
+    bool superfx;
+    bool sa1;
+    bool srtc;
+    bool sdd1;
+    bool cx4;
+    bool dsp1;
+    bool dsp2;
+    bool dsp3;
+    bool dsp4;
+    bool obc1;
+    bool st010;
+    bool st011;
+    bool st018;

-struct {
-  uint   type;
+    DSP1MemoryMapper dsp1_mapper;

-//cart information
-  uint32 crc32;
-  char   name[128];
-  char   pcb[32];
+    uint header_index;
+  } info;

-  uint   region;
-  uint   mapper;
-  uint   rom_size;
-  uint   ram_size;
+  MemoryMapper mapper();
+  Region region();

-//set to true for games that need cart MMIO mapping (c4, dsp-n, ...),
-//for games that map outside the standard MMIO range of $2000-$5fff
-  bool   cart_mmio;
-  bool   srtc;
-  bool   sdd1;
-  bool   c4;
-  bool   dsp1;
-  bool   dsp2;
-  bool   obc1;
+  void load_cart_normal(const char*);
+  void load_cart_bsx(const char*, const char*);
+  void load_cart_bsc(const char*, const char*);
+  void load_cart_st(const char*, const char*, const char*);

-  uint   dsp1_mapper;
+  void unload_cart_normal();
+  void unload_cart_bsx();
+  void unload_cart_bsc();
+  void unload_cart_st();

-//HiROM / LoROM specific code
-  uint   header_index;
-} info;
-
-  bool load_file(const char *fn, uint8 *&data, uint &size);
-  bool save_file(const char *fn, uint8 *data, uint size);
-
-  void load_rom_normal();
-  void load_ram_normal();
-  void save_ram_normal();
-
-  void load_rom_st();
-  void load_ram_st();
-  void save_ram_st();
-
-  void load_rom_stdual();
-  void load_ram_stdual();
-  void save_ram_stdual();
+  bool loaded();
+  void load_begin(CartridgeType);
+  void load_end();
+  bool unload();

  void find_header();
  void read_header();
+  void read_extended_header();

-  bool loaded() { return cart_loaded; }
-  void load_begin(uint cart_type);
-  void load(const char *rom_fn);
-  bool load_end();
-  bool unload();
+  bool load_file(const char *fn, uint8 *&data, uint &size);
+  bool save_file(const char *fn, uint8 *data, uint size);
+  char* modify_extension(char *filename, const char *extension);
+  char* get_save_filename(const char *source, const char *extension);

  Cartridge();
  ~Cartridge();
+
+private:
+  char savefn[PATH_MAX];
+};
+
+namespace memory {
+  extern MappedRAM cartrom, cartram;
+  extern MappedRAM bscram;
+  extern MappedRAM stArom, stAram;
+  extern MappedRAM stBrom, stBram;
 };

 extern Cartridge cartridge;
@@ -0,0 +1,41 @@
+void Cartridge::load_cart_bsc(const char *base, const char *slot) {
+  if(!base || !*base) return;
+
+  strcpy(cart.fn, base);
+  strcpy(bs.fn, slot ? slot : "");
+  load_begin(CartridgeBSC);
+
+uint8 *data;
+uint size;
+  load_file(cart.fn, data, size);
+  cart.rom = data, cart.rom_size = size;
+
+  if(*bs.fn) {
+    if(load_file(bs.fn, data, size) == true) {
+      info.bsxflash = true;
+      bs.ram = data, bs.ram_size = size;
+    }
+  }
+
+  find_header();
+  read_header();
+
+  info.mapper = cartridge.info.header_index == 0x7fc0 ? BSCLoROM : BSCHiROM;
+  info.region = NTSC;
+
+  if(info.ram_size > 0) {
+    cart.ram = (uint8*)malloc(cart.ram_size = info.ram_size);
+    memset(cart.ram, 0xff, cart.ram_size);
+
+    if(load_file(get_save_filename(cart.fn, "srm"), data, size) == true) {
+      memcpy(cart.ram, data, min(size, cart.ram_size));
+      safe_free(data);
+    }
+  }
+
+  load_end();
+}
+
+void Cartridge::unload_cart_bsc() {
+  if(cart.ram) save_file(get_save_filename(cart.fn, "srm"), cart.ram, cart.ram_size);
+}
@@ -0,0 +1,45 @@
+void Cartridge::load_cart_bsx(const char *base, const char *slot) {
+  if(!base || !*base) return;
+
+  strcpy(cart.fn, base);
+  strcpy(bs.fn, slot ? slot : "");
+
+  load_begin(CartridgeBSX);
+  info.bsxbase = true;
+  info.bsxcart = true;
+  info.mapper = BSXROM;
+  info.region = NTSC;
+
+uint8 *data;
+uint size;
+  load_file(cart.fn, data, size);
+  cart.rom = data, cart.rom_size = size;
+  cart.ram = 0, cart.ram_size = 0;
+
+  memset(bsxcart.sram.handle (), 0x00, bsxcart.sram.size ());
+  memset(bsxcart.psram.handle(), 0x00, bsxcart.psram.size());
+
+  if(load_file(get_save_filename(cart.fn, "srm"), data, size) == true) {
+    memcpy(bsxcart.sram.handle (), data, min(bsxcart.sram.size (), size));
+    safe_free(data);
+  }
+
+  if(load_file(get_save_filename(cart.fn, "psr"), data, size) == true) {
+    memcpy(bsxcart.psram.handle(), data, min(bsxcart.psram.size(), size));
+    safe_free(data);
+  }
+
+  if(*bs.fn) {
+    if(load_file(bs.fn, data, size) == true) {
+      info.bsxflash = true;
+      bs.ram = data, bs.ram_size = size;
+    }
+  }
+
+  load_end();
+}
+
+void Cartridge::unload_cart_bsx() {
+  save_file(get_save_filename(cart.fn, "srm"), bsxcart.sram.handle (), bsxcart.sram.size ());
+  save_file(get_save_filename(cart.fn, "psr"), bsxcart.psram.handle(), bsxcart.psram.size());
+}
@@ -1,53 +1,99 @@
+#include "../reader/filereader.h"
+
+#if defined(GZIP_SUPPORT)
+  #include "../reader/gzreader.h"
+  #include "../reader/zipreader.h"
+#endif
+
+#if defined(JMA_SUPPORT)
+  #include "../reader/jmareader.h"
+#endif
+
+char* Cartridge::modify_extension(char *filename, const char *extension) {
+int i;
+  for(i = strlen(filename); i >= 0; i--) {
+    if(filename[i] == '.') break;
+    if(filename[i] == '/') break;
+    if(filename[i] == '\\') break;
+  }
+  if(i > 0 && filename[i] == '.') filename[i] = 0;
+  strcat(filename, ".");
+  strcat(filename, extension);
+  return filename;
+}
+
+char* Cartridge::get_save_filename(const char *source, const char *extension) {
+  strcpy(savefn, source);
+  for(char *p = savefn; *p; p++) { if(*p == '\\') *p = '/'; }
+  modify_extension(savefn, extension);
+
+//override path with user-specified folder, if one was defined
+  if(config::path.save != "") {
+  lstring part;
+    split(part, "/", savefn);
+  string fn = (const char*)config::path.save;
+    if(strend(fn, "/") == false) strcat(fn, "/");
+    strcat(fn, part[count(part) - 1]);
+    strcpy(savefn, fn);
+
+  //resolve relative path, if found
+    if(strbegin(fn, "./") == true) {
+      ltrim(fn, "./");
+      strcpy(savefn, config::path.base);
+      strcat(savefn, fn);
+    }
+  }
+
+  return savefn;
+}
+
 bool Cartridge::load_file(const char *fn, uint8 *&data, uint &size) {
  dprintf("* Loading \"%s\"...", fn);

-  if(fexists(fn) == false) {
-    return false;
-  }
+  if(fexists(fn) == false) return false;

  switch(Reader::detect(fn)) {
+    default:
+    case Reader::RF_NORMAL: {
+    FileReader ff(fn);
+      if(!ff.ready()) {
+        alert("Error loading image file (%s)!", fn);
+        return false;
+      }
+      size = ff.size();
+      data = ff.read();
+    } break;

-  case Reader::RF_NORMAL: {
-  FileReader ff(fn);
-    if(!ff.ready()) {
-      alert("Error loading image file (%s)!", fn);
-      return false;
-    }
-    size = ff.size();
-    data = ff.read();
-  } break;
+  #ifdef GZIP_SUPPORT
+    case Reader::RF_GZ: {
+    GZReader gf(fn);
+      if(!gf.ready()) {
+        alert("Error loading image file (%s)!", fn);
+        return false;
+      }
+      size = gf.size();
+      data = gf.read();
+    } break;

-#ifdef GZIP_SUPPORT
-  case Reader::RF_GZ: {
-  GZReader gf(fn);
-    if(!gf.ready()) {
-      alert("Error loading image file (%s)!", fn);
-      return false;
-    }
-    size = gf.size();
-    data = gf.read();
-  } break;
-
-  case Reader::RF_ZIP: {
-  ZipReader zf(fn);
-    size = zf.size();
-    data = zf.read();
-  } break;
-#endif
-
-#ifdef JMA_SUPPORT
-  case Reader::RF_JMA: {
-    try {
-    JMAReader jf(fn);
-      size = jf.size();
-      data = jf.read();
-    } catch(JMA::jma_errors jma_error) {
-      alert("Error loading image file (%s)!", fn);
-      return false;
-    }
-  } break;
-#endif
+    case Reader::RF_ZIP: {
+    ZipReader zf(fn);
+      size = zf.size();
+      data = zf.read();
+    } break;
+  #endif

+  #ifdef JMA_SUPPORT
+    case Reader::RF_JMA: {
+      try {
+      JMAReader jf(fn);
+        size = jf.size();
+        data = jf.read();
+      } catch(JMA::jma_errors jma_error) {
+        alert("Error loading image file (%s)!", fn);
+        return false;
+      }
+    } break;
+  #endif
  }

  return true;
@@ -1,32 +1,46 @@
 void Cartridge::read_header() {
-  info.srtc = false;
-  info.sdd1 = false;
-  info.c4   = false;
-  info.dsp1 = false;
-  info.dsp2 = false;
-  info.obc1 = false;
+uint8 *rom = cart.rom;
+uint index = info.header_index;
+uint8 mapper   = rom[index + MAPPER];
+uint8 rom_type = rom[index + ROM_TYPE];
+uint8 company  = rom[index + COMPANY];
+uint8 region   = rom[index + REGION] & 0x7f;

-  info.dsp1_mapper = 0;
+//detect presence of BS-X flash cartridge connector (reads extended header information)
+bool has_bsxflash = false;
+  if(rom[index - 14] == 'Z') {
+    if(rom[index - 11] == 'J') {
+    uint8 n13 = rom[index - 13];
+      if((n13 >= 'A' && n13 <= 'Z') || (n13 >= '0' && n13 <= '9')) {
+        if(company == 0x33 || (rom[index - 10] == 0x00 && rom[index - 4] == 0x00)) {
+          has_bsxflash = true;
+        }
+      }
+    }
+  }

-  if(info.header_index == 0x7fc0 && info.rom_size >= 0x401000) {
-    info.mapper = EXLOROM;
-    strcpy(info.pcb, "UNL-EXLOROM");
-  } else if(info.header_index == 0x7fc0 && rom[info.header_index + MAPPER] == 0x32) {
-    info.mapper = EXLOROM;
-    strcpy(info.pcb, "UNL-EXLOROM");
-  } else if(info.header_index == 0x7fc0) {
-    info.mapper = LOROM;
-    strcpy(info.pcb, "UNL-LOROM");
-  } else if(info.header_index == 0xffc0) {
-    info.mapper = HIROM;
-    strcpy(info.pcb, "UNL-HIROM");
-  } else { //info.header_index == 0x40ffc0
-    info.mapper = EXHIROM;
-    strcpy(info.pcb, "UNL-EXHIROM");
+  if(has_bsxflash == true) {
+    info.mapper = index == 0x7fc0 ? BSCLoROM : BSCHiROM;
+  } else if(index == 0x7fc0 && cart.rom_size >= 0x401000) {
+    info.mapper = ExLoROM;
+  } else if(index == 0x7fc0 && mapper == 0x32) {
+    info.mapper = ExLoROM;
+  } else if(index == 0x7fc0) {
+    info.mapper = LoROM;
+  } else if(index == 0xffc0) {
+    info.mapper = HiROM;
+  } else { //index == 0x40ffc0
+    info.mapper = ExHiROM;
+  }
+
+  if(mapper == 0x20 && (rom_type == 0x13 || rom_type == 0x14 || rom_type == 0x15 || rom_type == 0x1a)) {
+    info.superfx = true;
+  }
+
+  if(mapper == 0x23 && (rom_type == 0x34 || rom_type == 0x35)) {
+    info.sa1 = true;
  }

-uint8 mapper   = rom[info.header_index + MAPPER];
-uint8 rom_type = rom[info.header_index + ROM_TYPE];
  if(mapper == 0x35 && rom_type == 0x55) {
    info.srtc = true;
  }
@@ -36,14 +50,14 @@ uint8 rom_type = rom[info.header_index + ROM_TYPE];
  }

  if(mapper == 0x20 && rom_type == 0xf3) {
-    info.c4 = true;
+    info.cx4 = true;
  }

  if((mapper == 0x20 || mapper == 0x21) && rom_type == 0x03) {
    info.dsp1 = true;
  }

-  if(mapper == 0x30 && rom_type == 0x05) {
+  if(mapper == 0x30 && rom_type == 0x05 && company != 0xb2) {
    info.dsp1 = true;
  }

@@ -52,12 +66,12 @@ uint8 rom_type = rom[info.header_index + ROM_TYPE];
  }

  if(info.dsp1 == true) {
-    if((mapper & 0x2f) == 0x20 && info.rom_size <= 0x100000) {
-      info.dsp1_mapper = DSP1_LOROM_1MB;
+    if((mapper & 0x2f) == 0x20 && cart.rom_size <= 0x100000) {
+      info.dsp1_mapper = DSP1LoROM1MB;
    } else if((mapper & 0x2f) == 0x20) {
-      info.dsp1_mapper = DSP1_LOROM_2MB;
+      info.dsp1_mapper = DSP1LoROM2MB;
    } else if((mapper & 0x2f) == 0x21) {
-      info.dsp1_mapper = DSP1_HIROM;
+      info.dsp1_mapper = DSP1HiROM;
    }
  }

@@ -65,11 +79,28 @@ uint8 rom_type = rom[info.header_index + ROM_TYPE];
    info.dsp2 = true;
  }

+  if(mapper == 0x30 && rom_type == 0x05 && company == 0xb2) {
+    info.dsp3 = true;
+  }
+
+  if(mapper == 0x30 && rom_type == 0x03) {
+    info.dsp4 = true;
+  }
+
  if(mapper == 0x30 && rom_type == 0x25) {
    info.obc1 = true;
  }

-  info.cart_mmio = info.c4 | info.dsp1 | info.dsp2 | info.obc1;
+  if(mapper == 0x30 && rom_type == 0xf6) {
+  //TODO: both ST010 and ST011 share the same mapper + rom_type
+  //need way to determine which is which
+  //for now, default to supported ST010
+    info.st010 = true;
+  }
+
+  if(mapper == 0x30 && rom_type == 0xf5) {
+    info.st018 = true;
+  }

  if(rom[info.header_index + RAM_SIZE] & 7) {
    info.ram_size = 1024 << (rom[info.header_index + RAM_SIZE] & 7);
@@ -77,6 +108,9 @@ uint8 rom_type = rom[info.header_index + ROM_TYPE];
    info.ram_size = 0;
  }

+//0, 1, 13 = NTSC; 2 - 12 = PAL
+  info.region = (region <= 1 || region >= 13) ? NTSC : PAL;
+
  memcpy(&info.name, &rom[info.header_index + CART_NAME], 21);
  info.name[21] = 0;

@@ -91,8 +125,9 @@ void Cartridge::find_header() {
 int32 score_lo = 0,
      score_hi = 0,
      score_ex = 0;
+uint8 *rom = cart.rom;

-  if(info.rom_size < 0x010000) {
+  if(cart.rom_size < 0x010000) {
  //cart too small to be anything but lorom
    info.header_index = 0x007fc0;
    return;
@@ -113,8 +148,8 @@ int32 score_lo = 0,
  if(rom[0x7fc0 + REGION] < 14)score_lo++;
  if(rom[0xffc0 + REGION] < 14)score_hi++;

-  if(rom[0x7fc0 + LICENSE] < 3)score_lo++;
-  if(rom[0xffc0 + LICENSE] < 3)score_hi++;
+  if(rom[0x7fc0 + COMPANY] < 3)score_lo++;
+  if(rom[0xffc0 + COMPANY] < 3)score_hi++;

  if(rom[0x7fc0 + RESH] & 0x80)score_lo += 2;
  if(rom[0xffc0 + RESH] & 0x80)score_hi += 2;
@@ -132,7 +167,7 @@ uint16 cksum, icksum;
    score_hi += 8;
  }

-  if(info.rom_size < 0x401000) {
+  if(cart.rom_size < 0x401000) {
    score_ex = 0;
  } else {
    if(rom[0x7fc0 + MAPPER] == 0x32)score_lo++;
@@ -1,66 +1,41 @@
-void Cartridge::load_rom_normal() {
-uint size = 0;
-  for(int i = 0; i < file.count; i++) {
-    size += file.rom_size[i] - (((file.rom_size[i] & 0x7fff) == 512) ? 512 : 0);
-  }
-
-  info.rom_size = size;
-  rom = (uint8*)malloc(info.rom_size);
-  memset(rom, 0, info.rom_size);
-
-uint offset = 0;
-  for(int i = 0; i < file.count; i++) {
-  uint8 *data = file.rom_data[i] + (((file.rom_size[i] & 0x7fff) == 512) ? 512 : 0);
-  uint   size = file.rom_size[i] - (((file.rom_size[i] & 0x7fff) == 512) ? 512 : 0);
-    memcpy(rom + offset, data, size);
-    offset += size;
-    safe_free(file.rom_data[i]);
-  }
-
-  info.crc32 = crc32_calculate(rom, info.rom_size);
-
-  if(read_database() == true) {
-    info.srtc = false;
-    info.sdd1 = false;
-    info.c4   = false;
-    info.dsp1 = false;
-    info.dsp2 = false;
-    info.obc1 = false;
-
-    info.dsp1_mapper = 0;
-
-    info.header_index = 0xffc0;
-    info.mapper = PCB;
-    strcpy(info.name, dbi.name);
-    strcpy(info.pcb,  dbi.pcb);
-    info.region = NTSC;
-    info.cart_mmio = false;
-
-    info.rom_size = dbi.rom;
-    info.ram_size = dbi.ram;
-  } else {
-    find_header();
-    read_header();
-  }
-}
-
-void Cartridge::load_ram_normal() {
-  if(info.ram_size == 0) {
-    ram = 0;
-    return;
-  }
-
-  ram = (uint8*)malloc(info.ram_size);
-  memset(ram, 0xff, info.ram_size);
-
-  if(load_file(file.ram_name[0], file.ram_data[0], file.ram_size[0]) == true) {
-    memcpy(ram, file.ram_data[0], min(info.ram_size, file.ram_size[0]));
-    safe_free(file.ram_data[0]);
-  }
-}
-
-void Cartridge::save_ram_normal() {
-  if(info.ram_size == 0)return;
-
-  save_file(file.ram_name[0], ram, info.ram_size);
-}
+void Cartridge::load_cart_normal(const char *filename) {
+  if(!filename || !*filename) return;
+
+uint8 *data;
+uint size;
+  if(load_file(filename, data, size) == false) return;
+  strcpy(cart.fn, filename);
+
+  load_begin(CartridgeNormal);
+
+//load ROM data, ignore 512-byte header if detected
+  if((size & 0x7fff) != 512) {
+    cart.rom = (uint8*)malloc(cart.rom_size = size);
+    memcpy(cart.rom, data, size);
+  } else {
+    cart.rom = (uint8*)malloc(cart.rom_size = size - 512);
+    memcpy(cart.rom, data + 512, size - 512);
+  }
+  safe_free(data);
+
+  info.crc32 = crc32_calculate(cart.rom, cart.rom_size);
+
+  find_header();
+  read_header();
+
+  if(info.ram_size > 0) {
+    cart.ram = (uint8*)malloc(cart.ram_size = info.ram_size);
+    memset(cart.ram, 0xff, cart.ram_size);
+
+    if(load_file(get_save_filename(cart.fn, "srm"), data, size) == true) {
+      memcpy(cart.ram, data, min(size, cart.ram_size));
+      safe_free(data);
+    }
+  }
+
+  load_end();
+}
+
+void Cartridge::unload_cart_normal() {
+  if(cart.ram) save_file(get_save_filename(cart.fn, "srm"), cart.ram, cart.ram_size);
+}
@@ -1,45 +1,59 @@
-void Cartridge::load_rom_st() {
-uint8 *data;
-uint   size;
-string bios = config::file_updatepath("stbios.bin", config::path.bios);
-  info.rom_size = 0x200000;
-  rom = (uint8*)malloc(info.rom_size);
-  memset(rom, 0, info.rom_size);
-
-  load_file(strptr(bios), data, size);
-  memcpy(rom, data, min(size, 0x040000));
-  safe_free(data);
-
-  memcpy(rom + 0x100000, file.rom_data[0], min(file.rom_size[0], 0x100000));
-  safe_free(file.rom_data[0]);
-
-//
-  strcpy(info.name, "???");
-  strcpy(info.pcb,  "STC-SOLO");
-
-  info.mapper = PCB;
-  info.region = NTSC;
-
-  info.rom_size = 0x200000;
-  info.ram_size = 0x020000;
-//
-
-  info.crc32 = crc32_calculate(rom + 0x100000, file.rom_size[0]);
-  if(read_database() == true) {
-    strcpy(info.name, dbi.name);
-  }
-}
-
-void Cartridge::load_ram_st() {
-  ram = (uint8*)malloc(info.ram_size);
-  memset(ram, 0xff, info.ram_size);
-
-  if(load_file(file.ram_name[0], file.ram_data[0], file.ram_size[0]) == true) {
-    memcpy(ram, file.ram_data[0], min(file.ram_size[0], 0x020000));
-    safe_free(file.ram_data[0]);
-  }
-}
-
-void Cartridge::save_ram_st() {
-  save_file(file.ram_name[0], ram, 0x020000);
-}
+void Cartridge::load_cart_st(const char *base, const char *slotA, const char *slotB) {
+  if(!base || !*base) return;
+
+  strcpy(cart.fn, base);
+  strcpy(stA.fn, slotA ? slotA : "");
+  strcpy(stB.fn, slotB ? slotB : "");
+
+  load_begin(CartridgeSufamiTurbo);
+  info.st = true;
+  info.mapper = STROM;
+  info.region = NTSC;
+
+uint8 *data;
+uint size;
+  if(load_file(cart.fn, data, size) == true) {
+    cart.rom = (uint8*)malloc(cart.rom_size = 0x040000);
+    memcpy(cart.rom, data, min(size, cart.rom_size));
+    safe_free(data);
+  }
+
+  if(*stA.fn) {
+    if(load_file(stA.fn, data, size) == true) {
+      stA.rom = (uint8*)malloc(stA.rom_size = 0x100000);
+      memcpy(stA.rom, data, min(size, stA.rom_size));
+      safe_free(data);
+
+      stA.ram = (uint8*)malloc(stA.ram_size = 0x020000);
+      memset(stA.ram, 0xff, stA.ram_size);
+
+      if(load_file(get_save_filename(stA.fn, "srm"), data, size) == true) {
+        memcpy(stA.ram, data, min(size, 0x020000U));
+        safe_free(data);
+      }
+    }
+  }
+
+  if(*stB.fn) {
+    if(load_file(stB.fn, data, size) == true) {
+      stB.rom = (uint8*)malloc(stB.rom_size = 0x100000);
+      memcpy(stB.rom, data, min(size, stB.rom_size));
+      safe_free(data);
+
+      stB.ram = (uint8*)malloc(stB.ram_size = 0x020000);
+      memset(stB.ram, 0xff, stB.ram_size);
+
+      if(load_file(get_save_filename(stB.fn, "srm"), data, size) == true) {
+        memcpy(stB.ram, data, min(size, 0x020000U));
+        safe_free(data);
+      }
+    }
+  }
+
+  load_end();
+}
+
+void Cartridge::unload_cart_st() {
+  if(stA.ram) save_file(get_save_filename(stA.fn, "srm"), stA.ram, stA.ram_size);
+  if(stB.ram) save_file(get_save_filename(stB.fn, "srm"), stB.ram, stB.ram_size);
+}
@@ -1,66 +0,0 @@
-void Cartridge::load_rom_stdual() {
-uint8 *data;
-uint   size;
-string bios = config::file_updatepath("stbios.bin", config::path.bios);
-  info.rom_size = 0x300000;
-  rom = (uint8*)malloc(info.rom_size);
-  memset(rom, 0, info.rom_size);
-
-  load_file(strptr(bios), data, size);
-  memcpy(rom, data, min(size, 0x040000));
-  safe_free(data);
-
-  memcpy(rom + 0x100000, file.rom_data[0], min(file.rom_size[0], 0x100000));
-  safe_free(file.rom_data[0]);
-
-  memcpy(rom + 0x200000, file.rom_data[1], min(file.rom_size[1], 0x100000));
-  safe_free(file.rom_data[1]);
-
-char name_a[4096], name_b[4096];
-  strcpy(name_a, "???");
-  strcpy(name_b, "???");
-//
-  info.mapper = PCB;
-  info.region = NTSC;
-
-  info.rom_size = 0x300000;
-  info.ram_size = 0x040000;
-//
-
-  info.crc32 = crc32_calculate(rom + 0x100000, file.rom_size[0]);
-  if(read_database() == true) {
-    strcpy(name_a, dbi.name);
-  }
-
-  info.crc32 = crc32_calculate(rom + 0x200000, file.rom_size[1]);
-  if(read_database() == true) {
-    strcpy(name_b, dbi.name);
-  }
-
-//
-  info.crc32 = 0;
-  strcpy(info.name, name_a);
-  strcat(info.name, " + ");
-  strcat(info.name, name_b);
-  strcpy(info.pcb, "STC-DUAL");
-}
-
-void Cartridge::load_ram_stdual() {
-  ram = (uint8*)malloc(info.ram_size);
-  memset(ram, 0xff, info.ram_size);
-
-  if(load_file(file.ram_name[0], file.ram_data[0], file.ram_size[0]) == true) {
-    memcpy(ram + 0x000000, file.ram_data[0], min(file.ram_size[0], 0x020000));
-    safe_free(file.ram_data[0]);
-  }
-
-  if(load_file(file.ram_name[1], file.ram_data[1], file.ram_size[1]) == true) {
-    memcpy(ram + 0x020000, file.ram_data[1], min(file.ram_size[1], 0x020000));
-    safe_free(file.ram_data[1]);
-  }
-}
-
-void Cartridge::save_ram_stdual() {
-  save_file(file.ram_name[0], ram + 0x000000, 0x020000);
-  save_file(file.ram_name[1], ram + 0x020000, 0x020000);
-}
@@ -1,37 +0,0 @@
-void Cartridge::load_database() {
-  database      = 0;
-  database_size = 0;
-
-FILE *fp;
-  fp = fopen("cart.db", "rb");
-  if(!fp)return;
-
-uint size = fsize(fp);
-  if(size < 8) {
-    fclose(fp);
-    return;
-  }
-
-  database = (uint8*)malloc(size);
-  fread(database, 1, size, fp);
-  fclose(fp);
-
-  database_blocksize = (database[6] << 0) | (database[7] << 8);
-  database_size      = (size - 8) / database_blocksize;
-}
-
-bool Cartridge::read_database() {
-uint i, crc32;
-  for(i = 0; i < database_size; i++) {
-  uint8 *p = database + 8 + (i * database_blocksize);
-    crc32  = *(p++) <<  0;
-    crc32 |= *(p++) <<  8;
-    crc32 |= *(p++) << 16;
-    crc32 |= *(p++) << 24;
-    if(crc32 == cartridge.info.crc32)break;
-  }
-  if(i >= database_size)return false;
-
-  db_read(dbi, database + 8 + (i * database_blocksize));
-  return true;
-}
@@ -1,113 +0,0 @@
-[0xbb5c4238]
-name = "Bishoujo Senshi Sailor Moon Sailor Stars - Fuwa Fuwa Panic 2 (Japan)"
-pcb  = "STC-????"
-rom  =  8mbit
-ram  = 32kbit
-
-[0x8eb753f3]
-name = "Crayon Shin-chan - Nagagutsu Dobon!! (Japan)"
-pcb  = "STC-????"
-rom  = 4mbit
-ram  = 8kbit
-
-[0x7aedd703]
-name = "Der Langrisser (Japan) [!]"
-pcb  = "SHVC-1A3M-30"
-rom  = 16mbit
-ram  = 64kbit
-
-[0x19bdcb19]
-name = "Derby Stallion '96 (Japan) [!]"
-pcb  = "BSC-1A5M-01"
-rom  =  24mbit
-ram  = 256kbit
-
-[0x4296500d]
-name = "Gegege no Kitarou - Youkai Donjara (Japan)"
-pcb  = "STC-????"
-rom  =  4mbit
-ram  = 16kbit
-
-[0x14c66fca]
-name = "Gekisou Sentai Car Rangers (Japan)"
-pcb  = "STC-????"
-rom  = 4mbit
-ram  = 8kbit
-
-[0x32b2b3dd]
-name = "Poi Poi Ninja World (Japan)"
-pcb  = "STC-????"
-rom  = 4mbit
-ram  = 8kbit
-
-[0x9684526d]
-name = "Romancing SaGa (Japan) (V1.1) [!]"
-pcb  = "SHVC-1A3B-12"
-rom  =  8mbit
-ram  = 64kbit
-
-[0xafd74dcb]
-name = "SD Gundam Generation A - Ichinen Sensouki (Japan)"
-pcb  = "STC-????"
-rom  = 4mbit
-ram  = 8kbit
-
-[0x48ecae44]
-name = "SD Gundam Generation B - Grips Senki (Japan)"
-pcb  = "STC-????"
-rom  = 4mbit
-ram  = 8kbit
-
-[0x72b4235f]
-name = "SD Gundam Generation C - Axis Senki (Japan)"
-pcb  = "STC-????"
-rom  = 4mbit
-ram  = 8kbit
-
-[0x792d884c]
-name = "SD Gundam Generation D - Babylonia Kenkoku Senki (Japan)"
-pcb  = "STC-????"
-rom  = 4mbit
-ram  = 8kbit
-
-[0xefd3a865]
-name = "SD Gundam Generation E - Zanskar Senki (Japan)"
-pcb  = "STC-????"
-rom  = 4mbit
-ram  = 8kbit
-
-[0xc5dfa8fd]
-name = "SD Gundam Generation F - Colony Kakutouki (Japan)"
-pcb  = "STC-????"
-rom  = 4mbit
-ram  = 8kbit
-
-[0x43ad5a45]
-name = "SD Ultra Battle - Seven Densetsu (Japan)"
-pcb  = "STC-????"
-rom  = 4mbit
-ram  = 8kbit
-
-[0x04939d14]
-name = "SD Ultra Battle - Ultra Densetsu (Japan)"
-pcb  = "STC-????"
-rom  = 4mbit
-ram  = 8kbit
-
-[0xa5c0045e]
-name = "Secret of Evermore (USA) [!]"
-pcb  = "SHVC-1J3M-20"
-rom  = 32mbit
-ram  = 64kbit
-
-[0x5ebf7246]
-name = "Sound Novel Tsukuru (Japan) [!]"
-pcb  = "BSC-1A7M-10"
-rom  =  24mbit
-ram  = 512kbit
-
-[0x64a91e64]
-name = "Wanderers from Ys (USA) [!]"
-pcb  = "SHVC-1A3B-12"
-rom  =  8mbit
-ram  = 64kbit
@@ -1,3 +0,0 @@
-cl /nologo /O2 dbcreate.cpp
-@pause
-@del *.obj
@@ -1 +0,0 @@
-@del *.exe
@@ -1,2 +0,0 @@
-dbcreate
-@copy cart.db ..\..\..\cart.db
@@ -1,47 +0,0 @@
-struct db_item {
-  uint32 crc32;
-  char   name[128];
-  char   pcb [32];
-  uint32 rom;
-  uint32 ram;
-};
-
-void db_write(FILE *fp, db_item &dbi) {
-  fputc(dbi.crc32 >>  0, fp);
-  fputc(dbi.crc32 >>  8, fp);
-  fputc(dbi.crc32 >> 16, fp);
-  fputc(dbi.crc32 >> 24, fp);
-
-  fwrite(dbi.name, 1, 128, fp);
-  fwrite(dbi.pcb,  1,  32, fp);
-
-  fputc(dbi.rom >>  0, fp);
-  fputc(dbi.rom >>  8, fp);
-  fputc(dbi.rom >> 16, fp);
-  fputc(dbi.rom >> 24, fp);
-
-  fputc(dbi.ram >>  0, fp);
-  fputc(dbi.ram >>  8, fp);
-  fputc(dbi.ram >> 16, fp);
-  fputc(dbi.ram >> 24, fp);
-}
-
-void db_read(db_item &dbi, uint8 *data) {
-  dbi.crc32  = (*data++) <<  0;
-  dbi.crc32 |= (*data++) <<  8;
-  dbi.crc32 |= (*data++) << 16;
-  dbi.crc32 |= (*data++) << 24;
-
-  memcpy(dbi.name, data, 128); dbi.name[127] = 0; data += 128;
-  memcpy(dbi.pcb,  data,  32); dbi.pcb [ 31] = 0; data +=  32;
-
-  dbi.rom  = (*data++) <<  0;
-  dbi.rom |= (*data++) <<  8;
-  dbi.rom |= (*data++) << 16;
-  dbi.rom |= (*data++) << 24;
-
-  dbi.ram  = (*data++) <<  0;
-  dbi.ram |= (*data++) <<  8;
-  dbi.ram |= (*data++) << 16;
-  dbi.ram |= (*data++) << 24;
-}
@@ -1,117 +0,0 @@
-#include "../../lib/libbase.h"
-#include "../../lib/libvector.h"
-#include "../../lib/libstring.h"
-
-#include "../../lib/libstring.cpp"
-
-#include "db.h"
-
-FILE *fp;
-
-uint decode_size(string &str) {
-//hex encoding
-  if(strbegin(str, "0x")) {
-    strltrim(str, "0x");
-    return strhex(str);
-  }
-
-//mbit encoding
-  if(strend(str, "mbit")) {
-    strrtrim(str, "mbit");
-    return strdec(str) * 1024 * 1024 / 8;
-  }
-
-//kbit encoding
-  if(strend(str, "kbit")) {
-    strrtrim(str, "kbit");
-    return strdec(str) * 1024 / 8;
-  }
-
-//decimal encoding
-  return strdec(str);
-}
-
-void build_block(string &block) {
-stringarray line, hashpart, part;
-  split(line, "\n", block);
-
-  if(strbegin(line[0], "[") == false) {
-    printf("error: invalid block detected: '%s'\n", strptr(line[0]));
-    return;
-  }
-
-  strltrim(line[0], "[");
-  strrtrim(line[0], "]");
-  replace(line[0], "0x", "");
-  split(hashpart, ",", line[0]);
-
-db_item dbi;
-  dbi.crc32 = 0;
- *dbi.name  = 0;
- *dbi.pcb   = 0;
-  dbi.rom   = 0;
-  dbi.ram   = 0;
-
-  for(int i = 1; i < count(line); i++) {
-  uint pos;
-    if(strpos(line[i], ";", pos) == true) {
-      strset(line[i], pos, 0);
-    }
-
-    if(line[i] == "")continue;
-
-    split(part, "=", line[i]);
-    strunquote(part[1]);
-
-    if(part[0] == "name") {
-      strncpy(dbi.name, strptr(part[1]), 128);
-      dbi.name[128] = 0;
-    }
-
-    if(part[0] == "pcb") {
-      strncpy(dbi.pcb, strptr(part[1]), 32);
-      dbi.pcb[31] = 0;
-    }
-
-    if(part[0] == "rom") {
-      dbi.rom = decode_size(part[1]);
-    }
-
-    if(part[0] == "ram") {
-      dbi.ram = decode_size(part[1]);
-    }
-  }
-
-  for(int i = 0; i < count(hashpart); i++) {
-    dbi.crc32 = strhex(hashpart[i]);
-    db_write(fp, dbi);
-  }
-}
-
-void build_database() {
-stringarray data, block;
-  if(strfread(data, "cartdb.txt") == false)return;
-
-  fp = fopen("cart.db", "wb");
-  fprintf(fp, "SNESDB");
-
-uint blocksize = 4 + 128 + 32 + 4 + 4;
-  fputc(blocksize >> 0, fp);
-  fputc(blocksize >> 8, fp);
-
-  replace (data, "\r", "");
-  qreplace(data, " ",  "");
-  qreplace(data, "\t", "");
-  split(block, "\n\n", data);
-
-  for(int i = 0; i < count(block); i++) {
-    build_block(block[i]);
-  }
-
-  fclose(fp);
-}
-
-int main() {
-  build_database();
-  return 0;
-}
@@ -0,0 +1,3 @@
+@make platform=win compiler=mingw32-gcc
+::@make platform=win compiler=mingw32-gcc enable_gzip=true enable_jma=true
+@pause
@@ -0,0 +1,2 @@
+make platform=x compiler=gcc
+#make platform=x compiler=gcc enable_gzip=true enable_jma=true
@@ -1,4 +1,5 @@
 #include "../base.h"
+#include "../reader/filereader.h"

 Cheat cheat;

@@ -9,21 +10,21 @@ Cheat cheat;
 *****/

 bool Cheat::decode(char *str, uint32 &addr, uint8 &data, uint8 &type) {
-stringarray t, part;
+string t, part;
  strcpy(t, str);
-  strlower(t);
-  if(strlen(t) == 8 || (strlen(t) == 9 && strptr(t)[6] == ':')) {
+  strlower(t());
+  if(strlen(t) == 8 || (strlen(t) == 9 && t()[6] == ':')) {
    type = CT_PRO_ACTION_REPLAY;
    replace(t, ":", "");
-  uint32 r = strhex(t);
+  uint32 r = strhex((const char*)t);
    addr = r >> 8;
    data = r & 0xff;
    return true;
-  } else if(strlen(t) == 9 && strptr(t)[4] == '-') {
+  } else if(strlen(t) == 9 && t()[4] == '-') {
    type = CT_GAME_GENIE;
    replace(t, "-", "");
    strtr(t, "df4709156bc8a23e", "0123456789abcdef");
-  uint32 r = strhex(t);
+  uint32 r = strhex((const char*)t);
  //8421 8421 8421 8421 8421 8421
  //abcd efgh ijkl mnop qrst uvwx
  //ijkl qrst opab cduv wxef ghmn
@@ -268,51 +269,40 @@ void Cheat::disable(uint32 n) {
 * cheat file manipulation routines
 *****/

+/* file format: */
+/* nnnn-nnnn = status, "description" \r\n */
+/* ... */
+
 bool Cheat::load(const char *fn) {
-FileReader rf(fn);
-  if(!rf.ready())return false;
-
-uint8 *raw_data = rf.read();
-stringarray data, line;
-  raw_data[rf.size()] = 0;
-  strcpy(data, (char*)raw_data);
-  SafeFree(raw_data);
+string data;
+  if(!fread(data, fn)) return false;
  replace(data, "\r\n", "\n");
+  qreplace(data, "=", ",");
+  qreplace(data, " ", "");

+lstring line;
  split(line, "\n", data);
  for(int i = 0; i < ::count(line); i++) {
-  stringarray part;
-  uint8  en = *(strptr(line[i]));
-    if(en == '+') {
-      strltrim(line[i], "+");
-    } else if(en == '-') {
-      strltrim(line[i], "-");
-    } else {
-      continue;
-    }
-    qreplace(line[i], " ", "");
-    qsplit(part, ",", line[i]);
-    if(::count(part) != 2)continue;
-    strunquote(part[1]);
-    add(en == '+', strptr(part[0]), strptr(part[1]));
+  lstring part;
+    split(part, ",", line[i]);
+    if(::count(part) != 3) continue;
+    trim(part[2], "\"");
+    add(part[1] == "enabled", part[0](), part[2]());
  }

  return true;
 }

 bool Cheat::save(const char *fn) {
-FileWriter wf(fn);
-  if(!wf.ready())return false;
-
-string data;
-char   t[4096];
-  strcpy(data, "");
+FILE *fp = fopen(fn, "wb");
+  if(!fp) return false;
  for(int i = 0; i < cheat_count; i++) {
-    sprintf(t, "%c%s, \"%s\"\r\n", index[i].enabled ? '+' : '-', index[i].code, index[i].desc);
-    strcat(data, t);
+    fprintf(fp, "%9s = %8s, \"%s\"\r\n",
+      index[i].code,
+      index[i].enabled ? "enabled" : "disabled",
+      index[i].desc);
  }
-
-  wf.write((uint8*)strptr(data), strlen(data));
+  fclose(fp);
  return true;
 }

@@ -322,12 +312,12 @@ char   t[4096];

 void Cheat::clear() {
  cheat_enabled = false;
-  cheat_count   = 0;
+  cheat_count = 0;
  memset(mask, 0, 0x200000);
-  for(int i = 0; i < CHEAT_LIMIT + 1; i++) {
+  for(int i = 0; i <= CHEAT_LIMIT; i++) {
    index[i].enabled = false;
-    index[i].addr    = 0x000000;
-    index[i].data    = 0x00;
+    index[i].addr = 0x000000;
+    index[i].data = 0x00;
    strcpy(index[i].code, "");
    strcpy(index[i].desc, "");
  }
@@ -2,18 +2,22 @@

 class Cheat {
 public:
-enum { CT_PRO_ACTION_REPLAY, CT_GAME_GENIE };
+  enum {
+    CT_PRO_ACTION_REPLAY,
+    CT_GAME_GENIE
+  };

-struct CheatIndex {
-  bool   enabled;
-  uint32 addr;
-  uint8  data;
-  char   code[ 16 + 1];
-  char   desc[128 + 1];
-} index[CHEAT_LIMIT + 1];
-bool   cheat_enabled;
-uint32 cheat_count;
-uint8  mask[0x200000];
+  struct CheatIndex {
+    bool   enabled;
+    uint32 addr;
+    uint8  data;
+    char   code[ 16 + 1];
+    char   desc[128 + 1];
+  } index[CHEAT_LIMIT + 1];
+
+  bool   cheat_enabled;
+  uint32 cheat_count;
+  uint8  mask[0x200000];

  inline bool enabled() { return cheat_enabled; }
  inline uint count() { return cheat_count; }
@@ -22,12 +26,6 @@ uint8  mask[0x200000];
  bool  decode(char *str, uint32 &addr, uint8 &data, uint8 &type);
  bool  encode(char *str, uint32  addr, uint8  data, uint8  type);

-private:
-  uint  mirror_address(uint addr);
-  void  set(uint32 addr);
-  void  clear(uint32 addr);
-public:
-
  bool  read(uint32 addr, uint8 &data);

  void  update_cheat_status();
@@ -42,7 +40,12 @@ public:
  bool  save(const char *fn);
  void  clear();

-  Cheat();
+  Cheat();
+
+private:
+  uint  mirror_address(uint addr);
+  void  set(uint32 addr);
+  void  clear(uint32 addr);
 };

 extern Cheat cheat;
@@ -0,0 +1,5 @@
+#include "../../base.h"
+
+#include "bsx_base.cpp"
+#include "bsx_cart.cpp"
+#include "bsx_flash.cpp"
@@ -0,0 +1,77 @@
+class BSXBase : public MMIO {
+public:
+  void init();
+  void enable();
+  void power();
+  void reset();
+
+  uint8 mmio_read(uint addr);
+  void mmio_write(uint addr, uint8 data);
+
+private:
+  struct {
+    uint8 r2188, r2189, r218a, r218b;
+    uint8 r218c, r218d, r218e, r218f;
+    uint8 r2190, r2191, r2192, r2193;
+    uint8 r2194, r2195, r2196, r2197;
+    uint8 r2198, r2199, r219a, r219b;
+    uint8 r219c, r219d, r219e, r219f;
+
+    uint8 r2192_counter;
+    uint8 r2192_hour, r2192_minute, r2192_second;
+  } regs;
+};
+
+class BSXCart : public MMIO {
+public:
+  void init();
+  void enable();
+  void power();
+  void reset();
+
+  uint8 mmio_read(uint addr);
+  void mmio_write(uint addr, uint8 data);
+
+  MappedRAM sram;
+  MappedRAM psram;
+
+  BSXCart();
+  ~BSXCart();
+
+private:
+  uint8 *sram_data;  //256kbit SRAM
+  uint8 *psram_data; //  4mbit PSRAM
+
+  struct {
+    uint8 r[16];
+  } regs;
+
+  void update_memory_map();
+};
+
+class BSXFlash : public Memory {
+public:
+  void init();
+  void enable();
+  void power();
+  void reset();
+
+  uint size();
+  uint8 read(uint addr);
+  void write(uint addr, uint8 data);
+
+private:
+  struct {
+    uint command;
+    uint8 write_old;
+    uint8 write_new;
+
+    bool flash_enable;
+    bool read_enable;
+    bool write_enable;
+  } regs;
+};
+
+extern BSXBase  bsxbase;
+extern BSXCart  bsxcart;
+extern BSXFlash bsxflash;
@@ -0,0 +1,133 @@
+void BSXBase::init() {
+}
+
+void BSXBase::enable() {
+  for(uint16 i = 0x2188; i <= 0x219f; i++) memory::mmio.map(i, *this);
+}
+
+void BSXBase::power() {
+  reset();
+}
+
+void BSXBase::reset() {
+  memset(&regs, 0x00, sizeof regs);
+}
+
+uint8 BSXBase::mmio_read(uint addr) {
+  addr &= 0xffff;
+
+  switch(addr) {
+    case 0x2188: return regs.r2188;
+    case 0x2189: return regs.r2189;
+    case 0x218a: return regs.r218a;
+    case 0x218c: return regs.r218c;
+    case 0x218e: return regs.r218e;
+    case 0x218f: return regs.r218f;
+    case 0x2190: return regs.r2190;
+
+    case 0x2192: {
+    uint counter = regs.r2192_counter++;
+      if(regs.r2192_counter >= 18) regs.r2192_counter = 0;
+
+      if(counter == 0) {
+      time_t rawtime;
+        time(&rawtime);
+      tm *t = localtime(&rawtime);
+
+        regs.r2192_hour   = t->tm_hour;
+        regs.r2192_minute = t->tm_min;
+        regs.r2192_second = t->tm_sec;
+      }
+
+      switch(counter) {
+        case  0: return 0x00; //???
+        case  1: return 0x00; //???
+        case  2: return 0x00; //???
+        case  3: return 0x00; //???
+        case  4: return 0x00; //???
+        case  5: return 0x01;
+        case  6: return 0x01;
+        case  7: return 0x00;
+        case  8: return 0x00;
+        case  9: return 0x00;
+        case 10: return regs.r2192_second;
+        case 11: return regs.r2192_minute;
+        case 12: return regs.r2192_hour;
+        case 13: return 0x00; //???
+        case 14: return 0x00; //???
+        case 15: return 0x00; //???
+        case 16: return 0x00; //???
+        case 17: return 0x00; //???
+      }
+    } break;
+
+    case 0x2193: return regs.r2193 & ~0x0c;
+    case 0x2194: return regs.r2194;
+    case 0x2196: return regs.r2196;
+    case 0x2197: return regs.r2197;
+    case 0x2199: return regs.r2199;
+  }
+
+  return cpu.regs.mdr;
+}
+
+void BSXBase::mmio_write(uint addr, uint8 data) {
+  addr &= 0xffff;
+
+  switch(addr) {
+    case 0x2188: {
+      regs.r2188 = data;
+    } break;
+
+    case 0x2189: {
+      regs.r2189 = data;
+    } break;
+
+    case 0x218a: {
+      regs.r218a = data;
+    } break;
+
+    case 0x218b: {
+      regs.r218b = data;
+    } break;
+
+    case 0x218c: {
+      regs.r218c = data;
+    } break;
+
+    case 0x218e: {
+      regs.r218e = data;
+    } break;
+
+    case 0x218f: {
+      regs.r218e >>= 1;
+      regs.r218e = regs.r218f - regs.r218e;
+      regs.r218f >>= 1;
+    } break;
+
+    case 0x2191: {
+      regs.r2191 = data;
+      regs.r2192_counter = 0;
+    } break;
+
+    case 0x2192: {
+      regs.r2190 = 0x80;
+    } break;
+
+    case 0x2193: {
+      regs.r2193 = data;
+    } break;
+
+    case 0x2194: {
+      regs.r2194 = data;
+    } break;
+
+    case 0x2197: {
+      regs.r2197 = data;
+    } break;
+
+    case 0x2199: {
+      regs.r2199 = data;
+    } break;
+  }
+}
@@ -0,0 +1,95 @@
+void BSXCart::init() {
+}
+
+void BSXCart::enable() {
+  for(uint16 i = 0x5000; i <= 0x5fff; i++) memory::mmio.map(i, *this);
+}
+
+void BSXCart::power() {
+  reset();
+}
+
+void BSXCart::reset() {
+  for(uint i = 0; i < 16; i++) regs.r[i] = 0x00;
+  regs.r[0x07] = 0x80;
+  regs.r[0x08] = 0x80;
+
+  update_memory_map();
+}
+
+void BSXCart::update_memory_map() {
+Memory &cart = (regs.r[0x01] & 0x80) == 0x00 ? (Memory&)bsxflash : (Memory&)psram;
+
+  if((regs.r[0x02] & 0x80) == 0x00) { //LoROM mapping
+    bus.map(Bus::MapLinear, 0x00, 0x7d, 0x8000, 0xffff, cart);
+    bus.map(Bus::MapLinear, 0x80, 0xff, 0x8000, 0xffff, cart);
+  } else { //HiROM mapping
+    bus.map(Bus::MapShadow, 0x00, 0x3f, 0x8000, 0xffff, cart);
+    bus.map(Bus::MapLinear, 0x40, 0x7d, 0x0000, 0xffff, cart);
+    bus.map(Bus::MapShadow, 0x80, 0xbf, 0x8000, 0xffff, cart);
+    bus.map(Bus::MapLinear, 0xc0, 0xff, 0x0000, 0xffff, cart);
+  }
+
+  if(regs.r[0x03] & 0x80) {
+    bus.map(Bus::MapLinear, 0x60, 0x6f, 0x0000, 0xffff, psram);
+  //bus.map(Bus::MapLinear, 0x70, 0x77, 0x0000, 0xffff, psram);
+  }
+
+  if((regs.r[0x05] & 0x80) == 0x00) {
+    bus.map(Bus::MapLinear, 0x40, 0x4f, 0x0000, 0xffff, psram);
+  }
+
+  if((regs.r[0x06] & 0x80) == 0x00) {
+    bus.map(Bus::MapLinear, 0x50, 0x5f, 0x0000, 0xffff, psram);
+  }
+
+  if(regs.r[0x07] & 0x80) {
+    bus.map(Bus::MapLinear, 0x00, 0x1f, 0x8000, 0xffff, memory::cartrom);
+  }
+
+  if(regs.r[0x08] & 0x80) {
+    bus.map(Bus::MapLinear, 0x80, 0x9f, 0x8000, 0xffff, memory::cartrom);
+  }
+
+  bus.map(Bus::MapShadow, 0x20, 0x3f, 0x6000, 0x7fff, psram);
+  bus.map(Bus::MapLinear, 0x70, 0x77, 0x0000, 0xffff, psram);
+}
+
+uint8 BSXCart::mmio_read(uint addr) {
+  if((addr & 0xf0ffff) == 0x005000) { //$[00-0f]:5000 MMIO
+  uint8 n = (addr >> 16) & 15;
+    return regs.r[n];
+  }
+
+  if((addr & 0xf8f000) == 0x105000) { //$[10-17]:[5000-5fff] SRAM
+    return sram.read(((addr >> 16) & 7) * 0x1000 + (addr & 0xfff));
+  }
+
+  return 0x00;
+}
+
+void BSXCart::mmio_write(uint addr, uint8 data) {
+  if((addr & 0xf0ffff) == 0x005000) { //$[00-0f]:5000 MMIO
+  uint8 n = (addr >> 16) & 15;
+    regs.r[n] = data;
+    if(n == 0x0e && data & 0x80) update_memory_map();
+    return;
+  }
+
+  if((addr & 0xf8f000) == 0x105000) { //$[10-17]:[5000-5fff] SRAM
+    return sram.write(((addr >> 16) & 7) * 0x1000 + (addr & 0xfff), data);
+  }
+}
+
+BSXCart::BSXCart() {
+  sram_data  = (uint8*)malloc( 32 * 1024);
+  psram_data = (uint8*)malloc(512 * 1024);
+
+  sram.map (sram_data,   32 * 1024);
+  psram.map(psram_data, 512 * 1024);
+}
+
+BSXCart::~BSXCart() {
+  safe_free(sram_data);
+  safe_free(psram_data);
+}
@@ -0,0 +1,109 @@
+void BSXFlash::init() {}
+void BSXFlash::enable() {}
+
+void BSXFlash::power() {
+  reset();
+}
+
+void BSXFlash::reset() {
+  regs.command   = 0;
+  regs.write_old = 0x00;
+  regs.write_new = 0x00;
+
+  regs.flash_enable = false;
+  regs.read_enable  = false;
+  regs.write_enable = false;
+}
+
+uint BSXFlash::size() {
+  return memory::bscram.size();
+}
+
+uint8 BSXFlash::read(uint addr) {
+  if(addr == 0x0002) {
+    if(regs.flash_enable) return 0x80;
+  }
+
+  if(addr == 0x5555) {
+    if(regs.flash_enable) return 0x80;
+  }
+
+  if(regs.read_enable && addr >= 0xff00 && addr <= 0xff13) {
+  //read flash cartridge vendor information
+    switch(addr - 0xff00) {
+      case 0x00: return 0x4d;
+      case 0x01: return 0x00;
+      case 0x02: return 0x50;
+      case 0x03: return 0x00;
+      case 0x04: return 0x00;
+      case 0x05: return 0x00;
+      case 0x06: return 0x2a; //0x2a = 8mbit, 0x2b = 16mbit (not known to exist, though BIOS recognizes ID)
+      case 0x07: return 0x00;
+      default:   return 0x00;
+    }
+  }
+
+  return memory::bscram.read(addr);
+}
+
+void BSXFlash::write(uint addr, uint8 data) {
+//there exist both read-only and read-write BS-X flash cartridges ...
+//unfortunately, the vendor info is not stored inside memory dumps
+//of BS-X flashcarts, so it is impossible to determine whether a
+//given flashcart is writeable.
+//however, it has been observed that LoROM-mapped BS-X carts always
+//use read-write flashcarts, and HiROM-mapped BS-X carts always use
+//read-only flashcarts.
+//below is an unfortunately necessary workaround to this problem.
+  if(cartridge.mapper() == Cartridge::BSCHiROM) return;
+
+  if((addr & 0xff0000) == 0) {
+    regs.write_old = regs.write_new;
+    regs.write_new = data;
+
+    if(regs.write_enable && regs.write_old == regs.write_new) {
+      return memory::bscram.write(addr, data);
+    }
+  } else {
+    if(regs.write_enable) {
+      return memory::bscram.write(addr, data);
+    }
+  }
+
+  if(addr == 0x0000) {
+    regs.command <<= 8;
+    regs.command  |= data;
+
+    if((regs.command & 0xffff) == 0x38d0) {
+      regs.flash_enable = true;
+      regs.read_enable  = true;
+    }
+  }
+
+  if(addr == 0x2aaa) {
+    regs.command <<= 8;
+    regs.command  |= data;
+  }
+
+  if(addr == 0x5555) {
+    regs.command <<= 8;
+    regs.command  |= data;
+
+    if((regs.command & 0xffffff) == 0xaa5570) {
+      regs.write_enable = false;
+    }
+
+    if((regs.command & 0xffffff) == 0xaa55a0) {
+      regs.write_old = 0x00;
+      regs.write_new = 0x00;
+      regs.flash_enable = true;
+      regs.write_enable = true;
+    }
+
+    if((regs.command & 0xffffff) == 0xaa55f0) {
+      regs.flash_enable = false;
+      regs.read_enable  = false;
+      regs.write_enable = false;
+    }
+  }
+}
@@ -0,0 +1,10 @@
+#include "bsx/bsx.h"
+#include "srtc/srtc.h"
+#include "sdd1/sdd1.h"
+#include "cx4/cx4.h"
+#include "dsp1/dsp1.h"
+#include "dsp2/dsp2.h"
+#include "dsp3/dsp3.h"
+#include "dsp4/dsp4.h"
+#include "obc1/obc1.h"
+#include "st010/st010.h"
@@ -7,29 +7,27 @@

 #include "../../base.h"

-C4 *c4;
+#include "cx4data.cpp"
+#include "cx4fn.cpp"
+#include "cx4oam.cpp"
+#include "cx4ops.cpp"

-#include "c4data.cpp"
-#include "c4fn.cpp"
-#include "c4oam.cpp"
-#include "c4ops.cpp"
+void Cx4::init() {}
+void Cx4::enable() {}

-void C4::init() {}
-void C4::enable() {}
-
-uint32 C4::ldr(uint8 r) {
+uint32 Cx4::ldr(uint8 r) {
 uint16 addr = 0x0080 + (r * 3);
  return (reg[addr]) | (reg[addr + 1] << 8) | (reg[addr + 2] << 16);
 }

-void C4::str(uint8 r, uint32 data) {
+void Cx4::str(uint8 r, uint32 data) {
 uint16 addr = 0x0080 + (r * 3);
  reg[addr    ] = (data);
  reg[addr + 1] = (data >> 8);
  reg[addr + 2] = (data >> 16);
 }

-void C4::mul(uint32 x, uint32 y, uint32 &rl, uint32 &rh) {
+void Cx4::mul(uint32 x, uint32 y, uint32 &rl, uint32 &rh) {
 int64 rx = x & 0xffffff;
 int64 ry = y & 0xffffff;
  if(rx & 0x800000)rx |= ~0x7fffff;
@@ -41,7 +39,7 @@ int64 ry = y & 0xffffff;
  rh = (rx >> 24) & 0xffffff;
 }

-uint32 C4::sin(uint32 rx) {
+uint32 Cx4::sin(uint32 rx) {
  r0 = rx & 0x1ff;
  if(r0 & 0x100)r0 ^= 0x1ff;
  if(r0 & 0x080)r0 ^= 0x0ff;
@@ -52,13 +50,13 @@ uint32 C4::sin(uint32 rx) {
  }
 }

-uint32 C4::cos(uint32 rx) {
+uint32 Cx4::cos(uint32 rx) {
  return sin(rx + 0x080);
 }

-void C4::immediate_reg(uint32 start) {
+void Cx4::immediate_reg(uint32 start) {
  r0 = ldr(0);
-  for(uint32 i=start;i<48;i++) {
+  for(uint32 i = start; i < 48; i++) {
    if((r0 & 0x0fff) < 0x0c00) {
      ram[r0 & 0x0fff] = immediate_data[i];
    }
@@ -67,7 +65,7 @@ void C4::immediate_reg(uint32 start) {
  str(0, r0);
 }

-void C4::transfer_data() {
+void Cx4::transfer_data() {
 uint32 src;
 uint16 dest, count;
  src   = (reg[0x40]) | (reg[0x41] << 8) | (reg[0x42] << 16);
@@ -75,11 +73,11 @@ uint16 dest, count;
  dest  = (reg[0x45]) | (reg[0x46] << 8);

  for(uint32 i=0;i<count;i++) {
-    write(dest++, r_mem->read(src++));
+    write(dest++, bus.read(src++));
  }
 }

-void C4::write(uint16 addr, uint8 data) {
+void Cx4::write(uint addr, uint8 data) {
  addr &= 0x1fff;

  if(addr < 0x0c00) {
@@ -111,57 +109,57 @@ void C4::write(uint16 addr, uint8 data) {
    }

    switch(data) {
-    case 0x00:op00();break;
-    case 0x01:op01();break;
-    case 0x05:op05();break;
-    case 0x0d:op0d();break;
-    case 0x10:op10();break;
-    case 0x13:op13();break;
-    case 0x15:op15();break;
-    case 0x1f:op1f();break;
-    case 0x22:op22();break;
-    case 0x25:op25();break;
-    case 0x2d:op2d();break;
-    case 0x40:op40();break;
-    case 0x54:op54();break;
-    case 0x5c:op5c();break;
-    case 0x5e:op5e();break;
-    case 0x60:op60();break;
-    case 0x62:op62();break;
-    case 0x64:op64();break;
-    case 0x66:op66();break;
-    case 0x68:op68();break;
-    case 0x6a:op6a();break;
-    case 0x6c:op6c();break;
-    case 0x6e:op6e();break;
-    case 0x70:op70();break;
-    case 0x72:op72();break;
-    case 0x74:op74();break;
-    case 0x76:op76();break;
-    case 0x78:op78();break;
-    case 0x7a:op7a();break;
-    case 0x7c:op7c();break;
-    case 0x89:op89();break;
+      case 0x00: op00(); break;
+      case 0x01: op01(); break;
+      case 0x05: op05(); break;
+      case 0x0d: op0d(); break;
+      case 0x10: op10(); break;
+      case 0x13: op13(); break;
+      case 0x15: op15(); break;
+      case 0x1f: op1f(); break;
+      case 0x22: op22(); break;
+      case 0x25: op25(); break;
+      case 0x2d: op2d(); break;
+      case 0x40: op40(); break;
+      case 0x54: op54(); break;
+      case 0x5c: op5c(); break;
+      case 0x5e: op5e(); break;
+      case 0x60: op60(); break;
+      case 0x62: op62(); break;
+      case 0x64: op64(); break;
+      case 0x66: op66(); break;
+      case 0x68: op68(); break;
+      case 0x6a: op6a(); break;
+      case 0x6c: op6c(); break;
+      case 0x6e: op6e(); break;
+      case 0x70: op70(); break;
+      case 0x72: op72(); break;
+      case 0x74: op74(); break;
+      case 0x76: op76(); break;
+      case 0x78: op78(); break;
+      case 0x7a: op7a(); break;
+      case 0x7c: op7c(); break;
+      case 0x89: op89(); break;
    }
  }
 }

-void C4::writeb(uint16 addr, uint8 data) {
+void Cx4::writeb(uint16 addr, uint8 data) {
  write(addr,     data);
 }

-void C4::writew(uint16 addr, uint16 data) {
+void Cx4::writew(uint16 addr, uint16 data) {
  write(addr,     data);
  write(addr + 1, data >> 8);
 }

-void C4::writel(uint16 addr, uint32 data) {
+void Cx4::writel(uint16 addr, uint32 data) {
  write(addr,     data);
  write(addr + 1, data >>  8);
  write(addr + 2, data >> 16);
 }

-uint8 C4::read(uint16 addr) {
+uint8 Cx4::read(uint addr) {
  addr &= 0x1fff;

  if(addr < 0x0c00) {
@@ -172,28 +170,26 @@ uint8 C4::read(uint16 addr) {
    return reg[addr & 0xff];
  }

-  return r_cpu->regs.mdr;
+  return cpu.regs.mdr;
 }

-uint8 C4::readb(uint16 addr) {
+uint8 Cx4::readb(uint16 addr) {
  return read(addr);
 }

-uint16 C4::readw(uint16 addr) {
+uint16 Cx4::readw(uint16 addr) {
  return read(addr) | (read(addr + 1) << 8);
 }

-uint32 C4::readl(uint16 addr) {
+uint32 Cx4::readl(uint16 addr) {
  return read(addr) | (read(addr + 1) << 8) + (read(addr + 2) << 16);
 }

-void C4::power() {
+void Cx4::power() {
  reset();
 }

-void C4::reset() {
+void Cx4::reset() {
  memset(ram, 0, 0x0c00);
  memset(reg, 0, 0x0100);
 }
-
-C4::C4() {}
@@ -1,29 +1,29 @@
-class C4 {
+class Cx4 : public Memory {
 private:
-uint8  ram[0x0c00];
-uint8  reg[0x0100];
-uint32 r0, r1, r2,  r3,  r4,  r5,  r6,  r7,
-       r8, r9, r10, r11, r12, r13, r14, r15;
+  uint8  ram[0x0c00];
+  uint8  reg[0x0100];
+  uint32 r0, r1, r2,  r3,  r4,  r5,  r6,  r7,
+         r8, r9, r10, r11, r12, r13, r14, r15;

-static const uint8  immediate_data[48];
-static const uint16 wave_data[40];
-static const uint32 sin_table[256];
+  static const uint8  immediate_data[48];
+  static const uint16 wave_data[40];
+  static const uint32 sin_table[256];

-static const int16 SinTable[512];
-static const int16 CosTable[512];
+  static const int16 SinTable[512];
+  static const int16 CosTable[512];

-int16 C4WFXVal, C4WFYVal, C4WFZVal, C4WFX2Val, C4WFY2Val, C4WFDist, C4WFScale;
-int16 C41FXVal, C41FYVal, C41FAngleRes, C41FDist, C41FDistVal;
+  int16 C4WFXVal, C4WFYVal, C4WFZVal, C4WFX2Val, C4WFY2Val, C4WFDist, C4WFScale;
+  int16 C41FXVal, C41FYVal, C41FAngleRes, C41FDist, C41FDistVal;

-double tanval;
-double c4x,c4y,c4z, c4x2,c4y2,c4z2;
+  double tanval;
+  double c4x,c4y,c4z, c4x2,c4y2,c4z2;

-void C4TransfWireFrame();
-void C4TransfWireFrame2();
-void C4CalcWireFrame();
-void C4DrawLine(int32 X1, int32 Y1, int16 Z1, int32 X2, int32 Y2, int16 Z2, uint8 Color);
-void C4DrawWireFrame();
-void C4DoScaleRotate(int row_padding);
+  void C4TransfWireFrame();
+  void C4TransfWireFrame2();
+  void C4CalcWireFrame();
+  void C4DrawLine(int32 X1, int32 Y1, int16 Z1, int32 X2, int32 Y2, int16 Z2, uint8 Color);
+  void C4DrawWireFrame();
+  void C4DoScaleRotate(int row_padding);

 public:
  uint32 ldr(uint8 r);
@@ -75,22 +75,23 @@ public:
  void   op7c();
  void   op89();

+  uint8  readb(uint16 addr);
+  uint16 readw(uint16 addr);
+  uint32 readl(uint16 addr);
+
+  void   writeb(uint16 addr, uint8 data);
+  void   writew(uint16 addr, uint16 data);
+  void   writel(uint16 addr, uint32 data);
+
+//
+
  void   init();
  void   enable();
  void   power();
  void   reset();

-  void   write (uint16 addr, uint8 data);
-  void   writeb(uint16 addr, uint8 data);
-  void   writew(uint16 addr, uint16 data);
-  void   writel(uint16 addr, uint32 data);
-
-  uint8  read (uint16 addr);
-  uint8  readb(uint16 addr);
-  uint16 readw(uint16 addr);
-  uint32 readl(uint16 addr);
-
-  C4();
+  uint8  read (uint addr);
+  void   write(uint addr, uint8 data);
 };

-extern C4 *c4;
+extern Cx4 cx4;
@@ -1,11 +1,11 @@
-const uint8 C4::immediate_data[48] = {
+const uint8 Cx4::immediate_data[48] = {
  0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00, 0xff,
  0xff, 0xff, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x80, 0xff, 0xff, 0x7f,
  0x00, 0x80, 0x00, 0xff, 0x7f, 0x00, 0xff, 0x7f, 0xff, 0x7f, 0xff, 0xff,
  0x00, 0x00, 0x01, 0xff, 0xff, 0xfe, 0x00, 0x01, 0x00, 0xff, 0xfe, 0x00
 };

-const uint16 C4::wave_data[40] = {
+const uint16 Cx4::wave_data[40] = {
  0x0000, 0x0002, 0x0004, 0x0006, 0x0008, 0x000a, 0x000c, 0x000e,
  0x0200, 0x0202, 0x0204, 0x0206, 0x0208, 0x020a, 0x020c, 0x020e,
  0x0400, 0x0402, 0x0404, 0x0406, 0x0408, 0x040a, 0x040c, 0x040e,
@@ -13,7 +13,7 @@ const uint16 C4::wave_data[40] = {
  0x0800, 0x0802, 0x0804, 0x0806, 0x0808, 0x080a, 0x080c, 0x080e
 };

-const uint32 C4::sin_table[256] = {
+const uint32 Cx4::sin_table[256] = {
  0x000000, 0x000324, 0x000648, 0x00096c, 0x000c8f, 0x000fb2, 0x0012d5, 0x0015f6,
  0x001917, 0x001c37, 0x001f56, 0x002273, 0x002590, 0x0028aa, 0x002bc4, 0x002edb,
  0x0031f1, 0x003505, 0x003817, 0x003b26, 0x003e33, 0x00413e, 0x004447, 0x00474d,
@@ -48,7 +48,7 @@ const uint32 C4::sin_table[256] = {
  0xff013b, 0xff00f1, 0xff00b1, 0xff007b, 0xff004e, 0xff002c, 0xff0013, 0xff0004
 };

-const int16 C4::SinTable[512] = {
+const int16 Cx4::SinTable[512] = {
       0,    402,    804,   1206,   1607,   2009,   2410,   2811,
    3211,   3611,   4011,   4409,   4808,   5205,   5602,   5997,
    6392,   6786,   7179,   7571,   7961,   8351,   8739,   9126,
@@ -115,7 +115,7 @@ const int16 C4::SinTable[512] = {
   -3211,  -2811,  -2410,  -2009,  -1607,  -1206,   -804,   -402
 };

-const int16 C4::CosTable[512] = {
+const int16 Cx4::CosTable[512] = {
   32767,  32765,  32758,  32745,  32728,  32706,  32679,  32647,
   32610,  32568,  32521,  32469,  32413,  32351,  32285,  32214,
   32138,  32057,  31971,  31881,  31785,  31685,  31581,  31471,
@@ -7,7 +7,7 @@
 #define PI 3.1415926535897932384626433832795

 //Wireframe Helpers
-void C4::C4TransfWireFrame() {
+void Cx4::C4TransfWireFrame() {
  c4x = (double)C4WFXVal;
  c4y = (double)C4WFYVal;
  c4z = (double)C4WFZVal - 0x95;
@@ -32,7 +32,7 @@ void C4::C4TransfWireFrame() {
  C4WFYVal = (int16)(c4y * C4WFScale / (0x90 * (c4z + 0x95)) * 0x95);
 }

-void C4::C4CalcWireFrame() {
+void Cx4::C4CalcWireFrame() {
  C4WFXVal = C4WFX2Val - C4WFXVal;
  C4WFYVal = C4WFY2Val - C4WFYVal;

@@ -49,7 +49,7 @@ void C4::C4CalcWireFrame() {
  }
 }

-void C4::C4TransfWireFrame2() {
+void Cx4::C4TransfWireFrame2() {
  c4x = (double)C4WFXVal;
  c4y = (double)C4WFYVal;
  c4z = (double)C4WFZVal;
@@ -74,34 +74,34 @@ void C4::C4TransfWireFrame2() {
  C4WFYVal = (int16)(c4y * C4WFScale / 0x100);
 }

-void C4::C4DrawWireFrame() {
+void Cx4::C4DrawWireFrame() {
 uint32 line = readl(0x1f80);
 uint32 point1, point2;
 int16 X1, Y1, Z1;
 int16 X2, Y2, Z2;
 uint8 Color;
  for(int32 i = ram[0x0295]; i > 0; i--, line += 5) {
-    if(r_mem->read(line) == 0xff && r_mem->read(line + 1) == 0xff) {
+    if(bus.read(line) == 0xff && bus.read(line + 1) == 0xff) {
    int32 tmp = line - 5;
-      while(r_mem->read(tmp + 2) == 0xff && r_mem->read(tmp + 3) == 0xff && (tmp + 2) >= 0) { tmp -= 5; }
-      point1 = (read(0x1f82) << 16) | (r_mem->read(tmp + 2) << 8) | r_mem->read(tmp + 3);
+      while(bus.read(tmp + 2) == 0xff && bus.read(tmp + 3) == 0xff && (tmp + 2) >= 0) { tmp -= 5; }
+      point1 = (read(0x1f82) << 16) | (bus.read(tmp + 2) << 8) | bus.read(tmp + 3);
    } else {
-      point1 = (read(0x1f82) << 16) | (r_mem->read(line) << 8) | r_mem->read(line + 1);
+      point1 = (read(0x1f82) << 16) | (bus.read(line) << 8) | bus.read(line + 1);
    }
-    point2 = (read(0x1f82) << 16) | (r_mem->read(line + 2) << 8) | r_mem->read(line + 3);
+    point2 = (read(0x1f82) << 16) | (bus.read(line + 2) << 8) | bus.read(line + 3);

-    X1=(r_mem->read(point1 + 0) << 8) | r_mem->read(point1 + 1);
-    Y1=(r_mem->read(point1 + 2) << 8) | r_mem->read(point1 + 3);
-    Z1=(r_mem->read(point1 + 4) << 8) | r_mem->read(point1 + 5);
-    X2=(r_mem->read(point2 + 0) << 8) | r_mem->read(point2 + 1);
-    Y2=(r_mem->read(point2 + 2) << 8) | r_mem->read(point2 + 3);
-    Z2=(r_mem->read(point2 + 4) << 8) | r_mem->read(point2 + 5);
-    Color = r_mem->read(line + 4);
+    X1=(bus.read(point1 + 0) << 8) | bus.read(point1 + 1);
+    Y1=(bus.read(point1 + 2) << 8) | bus.read(point1 + 3);
+    Z1=(bus.read(point1 + 4) << 8) | bus.read(point1 + 5);
+    X2=(bus.read(point2 + 0) << 8) | bus.read(point2 + 1);
+    Y2=(bus.read(point2 + 2) << 8) | bus.read(point2 + 3);
+    Z2=(bus.read(point2 + 4) << 8) | bus.read(point2 + 5);
+    Color = bus.read(line + 4);
    C4DrawLine(X1, Y1, Z1, X2, Y2, Z2, Color);
  }
 }

-void C4::C4DrawLine(int32 X1, int32 Y1, int16 Z1, int32 X2, int32 Y2, int16 Z2, uint8 Color) {
+void Cx4::C4DrawLine(int32 X1, int32 Y1, int16 Z1, int32 X2, int32 Y2, int16 Z2, uint8 Color) {
 //Transform coordinates
  C4WFXVal  = (int16)X1;
  C4WFYVal  = (int16)Y1;
@@ -145,7 +145,7 @@ void C4::C4DrawLine(int32 X1, int32 Y1, int16 Z1, int32 X2, int32 Y2, int16 Z2,
  }
 }

-void C4::C4DoScaleRotate(int row_padding) {
+void Cx4::C4DoScaleRotate(int row_padding) {
 int16 A, B, C, D;

 //Calculate matrix
@@ -1,5 +1,5 @@
 //Build OAM
-void C4::op00_00() {
+void Cx4::op00_00() {
 uint32 oamptr = ram[0x626] << 2;
  for(int32 i = 0x1fd; i > oamptr && i >= 0; i -= 4) {
  //clear oam-to-be
@@ -27,28 +27,28 @@ uint32 srcptr = 0x220;
    sprattr = ram[srcptr + 4] | ram[srcptr + 6];

  uint32 spraddr = readl(srcptr + 7);
-    if(r_mem->read(spraddr)) {
+    if(bus.read(spraddr)) {
    int16 x, y;
-      for(int sprcnt = r_mem->read(spraddr++); sprcnt > 0 && sprcount > 0; sprcnt--, spraddr += 4) {
-        x = (int8)r_mem->read(spraddr + 1);
+      for(int sprcnt = bus.read(spraddr++); sprcnt > 0 && sprcount > 0; sprcnt--, spraddr += 4) {
+        x = (int8)bus.read(spraddr + 1);
        if(sprattr & 0x40) {
-          x = -x - ((r_mem->read(spraddr) & 0x20) ? 16 : 8);
+          x = -x - ((bus.read(spraddr) & 0x20) ? 16 : 8);
        }
        x += sprx;
        if(x >= -16 && x <= 272) {
-          y = (int8)r_mem->read(spraddr + 2);
+          y = (int8)bus.read(spraddr + 2);
          if(sprattr & 0x80) {
-            y = -y - ((r_mem->read(spraddr) & 0x20) ? 16 : 8);
+            y = -y - ((bus.read(spraddr) & 0x20) ? 16 : 8);
          }
          y += spry;
          if(y >= -16 && y <= 224) {
            ram[oamptr    ] = (uint8)x;
            ram[oamptr + 1] = (uint8)y;
-            ram[oamptr + 2] = sprname + r_mem->read(spraddr + 3);
-            ram[oamptr + 3] = sprattr ^ (r_mem->read(spraddr) & 0xc0);
+            ram[oamptr + 2] = sprname + bus.read(spraddr + 3);
+            ram[oamptr + 3] = sprattr ^ (bus.read(spraddr) & 0xc0);
            ram[oamptr2] &= ~(3 << offset);
            if(x & 0x100)ram[oamptr2] |= 1 << offset;
-            if(r_mem->read(spraddr) & 0x20)ram[oamptr2] |= 2 << offset;
+            if(bus.read(spraddr) & 0x20)ram[oamptr2] |= 2 << offset;
            oamptr += 4;
            sprcount--;
            offset = (offset + 2) & 6;
@@ -73,12 +73,12 @@ uint32 srcptr = 0x220;
 }

 //Scale and Rotate
-void C4::op00_03() {
+void Cx4::op00_03() {
  C4DoScaleRotate(0);
 }

 //Transform Lines
-void C4::op00_05() {
+void Cx4::op00_05() {
  C4WFX2Val = read(0x1f83);
  C4WFY2Val = read(0x1f86);
  C4WFDist  = read(0x1f89);
@@ -119,17 +119,17 @@ uint32 ptr2 = 0;
 }

 //Scale and Rotate
-void C4::op00_07() {
+void Cx4::op00_07() {
  C4DoScaleRotate(64);
 }

 //Draw Wireframe
-void C4::op00_08() {
+void Cx4::op00_08() {
  C4DrawWireFrame();
 }

 //Disintegrate
-void C4::op00_0b() {
+void Cx4::op00_0b() {
 uint8  width, height;
 uint32 startx, starty;
 uint32 srcptr;
@@ -169,7 +169,7 @@ int32  i, j;
 }

 //Bitplane Wave
-void C4::op00_0c() {
+void Cx4::op00_0c() {
 uint32 destptr = 0;
 uint32 waveptr = read(0x1f83);
 uint16 mask1   = 0xc0c0;
@@ -1,5 +1,5 @@
 //Sprite Functions
-void C4::op00() {
+void Cx4::op00() {
  switch(reg[0x4d]) {
  case 0x00:op00_00();break;
  case 0x03:op00_03();break;
@@ -12,13 +12,13 @@ void C4::op00() {
 }

 //Draw Wireframe
-void C4::op01() {
+void Cx4::op01() {
  memset(ram + 0x300, 0, 2304);
  C4DrawWireFrame();
 }

 //Propulsion
-void C4::op05() {
+void Cx4::op05() {
 int32 temp = 0x10000;
  if(readw(0x1f83)) {
    temp = sar((temp / readw(0x1f83)) * readw(0x1f81), 8);
@@ -27,7 +27,7 @@ int32 temp = 0x10000;
 }

 //Set Vector length
-void C4::op0d() {
+void Cx4::op0d() {
  C41FXVal    = readw(0x1f80);
  C41FYVal    = readw(0x1f83);
  C41FDistVal = readw(0x1f86);
@@ -40,7 +40,7 @@ void C4::op0d() {
 }

 //Triangle
-void C4::op10() {
+void Cx4::op10() {
  r0 = ldr(0);
  r1 = ldr(1);

@@ -64,7 +64,7 @@ void C4::op10() {
 }

 //Triangle
-void C4::op13() {
+void Cx4::op13() {
  r0 = ldr(0);
  r1 = ldr(1);

@@ -87,7 +87,7 @@ void C4::op13() {
 }

 //Pythagorean
-void C4::op15() {
+void Cx4::op15() {
  C41FXVal = readw(0x1f80);
  C41FYVal = readw(0x1f83);
  C41FDist = (int16)sqrt((double)C41FXVal * (double)C41FXVal + (double)C41FYVal * (double)C41FYVal);
@@ -95,7 +95,7 @@ void C4::op15() {
 }

 //Calculate distance
-void C4::op1f() {
+void Cx4::op1f() {
  C41FXVal = readw(0x1f80);
  C41FYVal = readw(0x1f83);
  if(!C41FXVal) {
@@ -113,7 +113,7 @@ void C4::op1f() {
 }

 //Trapezoid
-void C4::op22() {
+void Cx4::op22() {
 int16 angle1 = readw(0x1f8c) & 0x1ff;
 int16 angle2 = readw(0x1f8f) & 0x1ff;
 int32 tan1 = Tan(angle1);
@@ -152,7 +152,7 @@ int16 left, right;
 }

 //Multiply
-void C4::op25() {
+void Cx4::op25() {
  r0 = ldr(0);
  r1 = ldr(1);
  mul(r0, r1, r0, r1);
@@ -161,7 +161,7 @@ void C4::op25() {
 }

 //Transform Coords
-void C4::op2d() {
+void Cx4::op2d() {
  C4WFXVal  = readw(0x1f81);
  C4WFYVal  = readw(0x1f84);
  C4WFZVal  = readw(0x1f87);
@@ -175,7 +175,7 @@ void C4::op2d() {
 }

 //Sum
-void C4::op40() {
+void Cx4::op40() {
  r0 = 0;
  for(uint32 i=0;i<0x800;i++) {
    r0 += ram[i];
@@ -184,7 +184,7 @@ void C4::op40() {
 }

 //Square
-void C4::op54() {
+void Cx4::op54() {
  r0 = ldr(0);
  mul(r0, r0, r1, r2);
  str(1, r1);
@@ -192,31 +192,31 @@ void C4::op54() {
 }

 //Immediate Register
-void C4::op5c() {
+void Cx4::op5c() {
  str(0, 0x000000);
  immediate_reg(0);
 }

 //Immediate Register (Multiple)
-void C4::op5e() { immediate_reg( 0); }
-void C4::op60() { immediate_reg( 3); }
-void C4::op62() { immediate_reg( 6); }
-void C4::op64() { immediate_reg( 9); }
-void C4::op66() { immediate_reg(12); }
-void C4::op68() { immediate_reg(15); }
-void C4::op6a() { immediate_reg(18); }
-void C4::op6c() { immediate_reg(21); }
-void C4::op6e() { immediate_reg(24); }
-void C4::op70() { immediate_reg(27); }
-void C4::op72() { immediate_reg(30); }
-void C4::op74() { immediate_reg(33); }
-void C4::op76() { immediate_reg(36); }
-void C4::op78() { immediate_reg(39); }
-void C4::op7a() { immediate_reg(42); }
-void C4::op7c() { immediate_reg(45); }
+void Cx4::op5e() { immediate_reg( 0); }
+void Cx4::op60() { immediate_reg( 3); }
+void Cx4::op62() { immediate_reg( 6); }
+void Cx4::op64() { immediate_reg( 9); }
+void Cx4::op66() { immediate_reg(12); }
+void Cx4::op68() { immediate_reg(15); }
+void Cx4::op6a() { immediate_reg(18); }
+void Cx4::op6c() { immediate_reg(21); }
+void Cx4::op6e() { immediate_reg(24); }
+void Cx4::op70() { immediate_reg(27); }
+void Cx4::op72() { immediate_reg(30); }
+void Cx4::op74() { immediate_reg(33); }
+void Cx4::op76() { immediate_reg(36); }
+void Cx4::op78() { immediate_reg(39); }
+void Cx4::op7a() { immediate_reg(42); }
+void Cx4::op7c() { immediate_reg(45); }

 //Immediate ROM
-void C4::op89() {
+void Cx4::op89() {
  str(0, 0x054336);
  str(1, 0xffffff);
 }
@@ -1,7 +1,5 @@
 #include "../../base.h"

-DSP1 *dsp1;
-
 #include "dsp1emu.cpp"

 void DSP1::init() {}
@@ -28,29 +26,30 @@ void DSP1::reset() {
 *****/
 bool DSP1::addr_decode(uint16 addr) {
  switch(cartridge.info.dsp1_mapper) {
+    case Cartridge::DSP1LoROM1MB: {
+    //$[20-3f]:[8000-bfff] = DR, $[20-3f]:[c000-ffff] = SR
+      return (addr >= 0xc000);
+    }

-  case Cartridge::DSP1_LOROM_1MB:
-  //$[20-3f]:[8000-bfff] = DR, $[20-3f]:[c000-ffff] = SR
-    return (addr >= 0xc000);
-
-  case Cartridge::DSP1_LOROM_2MB:
-  //$[60-6f]:[0000-3fff] = DR, $[60-6f]:[4000-7fff] = SR
-    return (addr >= 0x4000);
-
-  case Cartridge::DSP1_HIROM:
-  //$[00-1f]:[6000-6fff] = DR, $[00-1f]:[7000-7fff] = SR
-    return (addr >= 0x7000);
+    case Cartridge::DSP1LoROM2MB: {
+    //$[60-6f]:[0000-3fff] = DR, $[60-6f]:[4000-7fff] = SR
+      return (addr >= 0x4000);
+    }

+    case Cartridge::DSP1HiROM: {
+    //$[00-1f]:[6000-6fff] = DR, $[00-1f]:[7000-7fff] = SR
+      return (addr >= 0x7000);
+    }
  }

  return 0;
 }

-uint8 DSP1::read(uint16 addr) {
+uint8 DSP1::read(uint addr) {
  return (addr_decode(addr) == 0) ? dsp1.getDr() : dsp1.getSr();
 }

-void DSP1::write(uint16 addr, uint8 data) {
+void DSP1::write(uint addr, uint8 data) {
  if(addr_decode(addr) == 0) {
    dsp1.setDr(data);
  }
@@ -1,18 +1,18 @@
 #include "dsp1emu.h"

-class DSP1 {
+class DSP1 : public Memory {
 private:
-Dsp1 dsp1;
+  Dsp1 dsp1;
+  bool addr_decode(uint16 addr);

 public:
-  void   init();
-  void   enable();
-  void   power();
-  void   reset();
+  void init();
+  void enable();
+  void power();
+  void reset();

-  bool   addr_decode(uint16 addr);
-  uint8  read (uint16 addr);
-  void   write(uint16 addr, uint8 data);
+  uint8 read(uint addr);
+  void write(uint addr, uint8 data);
 };

-extern DSP1 *dsp1;
+extern DSP1 dsp1;
@@ -1,7 +1,5 @@
 #include "../../base.h"

-DSP2 *dsp2;
-
 #include "dsp2_op.cpp"

 void DSP2::init() {}
@@ -30,7 +28,7 @@ void DSP2::reset() {
  status.op0dinlen       = 0;
 }

-uint8 DSP2::read(uint16 addr) {
+uint8 DSP2::read(uint addr) {
 uint8 r = 0xff;
  if(status.out_count) {
    r = status.output[status.out_index++];
@@ -42,7 +40,7 @@ uint8 r = 0xff;
  return r;
 }

-void DSP2::write(uint16 addr, uint8 data) {
+void DSP2::write(uint addr, uint8 data) {
  if(status.waiting_for_command) {
    status.command  = data;
    status.in_index = 0;
@@ -1,43 +1,44 @@
-class DSP2 {
+class DSP2 : public Memory {
 public:
-struct {
-  bool   waiting_for_command;
-  uint   command;
-  uint   in_count,  in_index;
-  uint   out_count, out_index;
+  struct {
+    bool   waiting_for_command;
+    uint   command;
+    uint   in_count,  in_index;
+    uint   out_count, out_index;

-  uint8  parameters[512];
-  uint8  output[512];
+    uint8  parameters[512];
+    uint8  output[512];

-  uint8  op05transparent;
-  bool   op05haslen;
-  int    op05len;
-  bool   op06haslen;
-  int    op06len;
-  uint16 op09word1;
-  uint16 op09word2;
-  bool   op0dhaslen;
-  int    op0doutlen;
-  int    op0dinlen;
-} status;
+    uint8  op05transparent;
+    bool   op05haslen;
+    int    op05len;
+    bool   op06haslen;
+    int    op06len;
+    uint16 op09word1;
+    uint16 op09word2;
+    bool   op0dhaslen;
+    int    op0doutlen;
+    int    op0dinlen;
+  } status;

-  void   init();
-  void   enable();
-  void   power();
-  void   reset();
+  void init();
+  void enable();
+  void power();
+  void reset();

-  void   op01();
-  void   op03();
-  void   op05();
-  void   op06();
-  void   op09();
-  void   op0d();
-
-  uint8  read (uint16 addr);
-  void   write(uint16 addr, uint8 data);
+  uint8 read(uint addr);
+  void write(uint addr, uint8 data);

  DSP2();
  ~DSP2();
+
+protected:
+  void op01();
+  void op03();
+  void op05();
+  void op06();
+  void op09();
+  void op0d();
 };

-extern DSP2 *dsp2;
+extern DSP2 dsp2;
@@ -0,0 +1,33 @@
+#include "../../base.h"
+
+namespace DSP3i {
+  #define bool8 uint8
+  #include "dsp3emu.c"
+  #undef bool8
+};
+
+void DSP3::init() {
+}
+
+void DSP3::enable() {
+}
+
+void DSP3::power() {
+  reset();
+}
+
+void DSP3::reset() {
+  DSP3i::DSP3_Reset();
+}
+
+uint8 DSP3::read(uint addr) {
+  DSP3i::dsp3_address = addr & 0xffff;
+  DSP3i::DSP3GetByte();
+  return DSP3i::dsp3_byte;
+}
+
+void DSP3::write(uint addr, uint8 data) {
+  DSP3i::dsp3_address = addr & 0xffff;
+  DSP3i::dsp3_byte = data;
+  DSP3i::DSP3SetByte();
+}
@@ -0,0 +1,12 @@
+class DSP3 : public Memory {
+public:
+  void init();
+  void enable();
+  void power();
+  void reset();
+
+  uint8 read (uint addr);
+  void  write(uint addr, uint8 data);
+};
+
+extern DSP3 dsp3;
@@ -0,0 +1,53 @@
+#include "../../base.h"
+
+namespace DSP4i {
+  inline uint16 READ_WORD(uint8 *addr) {
+    return (addr[0]) + (addr[1] << 8);
+  }
+
+  inline uint32 READ_DWORD(uint8 *addr) {
+    return (addr[0]) + (addr[1] << 8) + (addr[2] << 16) + (addr[3] << 24);
+  }
+
+  inline void WRITE_WORD(uint8 *addr, uint16 data) {
+    addr[0] = data;
+    addr[1] = data >> 8;
+  }
+
+  #define bool8 uint8
+  #include "dsp4emu.c"
+  #undef bool8
+};
+
+void DSP4::init() {
+}
+
+void DSP4::enable() {
+}
+
+void DSP4::power() {
+  reset();
+}
+
+void DSP4::reset() {
+  DSP4i::InitDSP4();
+}
+
+uint8 DSP4::read(uint addr) {
+  addr &= 0xffff;
+  if(addr < 0xc000) {
+    DSP4i::dsp4_address = addr;
+    DSP4i::DSP4GetByte();
+    return DSP4i::dsp4_byte;
+  }
+  return 0x80;
+}
+
+void DSP4::write(uint addr, uint8 data) {
+  addr &= 0xffff;
+  if(addr < 0xc000) {
+    DSP4i::dsp4_address = addr;
+    DSP4i::dsp4_byte = data;
+    DSP4i::DSP4SetByte();
+  }
+}
@@ -0,0 +1,12 @@
+class DSP4 : public Memory {
+public:
+  void init();
+  void enable();
+  void power();
+  void reset();
+
+  uint8 read (uint addr);
+  void  write(uint addr, uint8 data);
+};
+
+extern DSP4 dsp4;
@@ -0,0 +1,108 @@
+//DSP-4 emulator code
+//Copyright (c) 2004-2006 Dreamer Nom, John Weidman, Kris Bleakley, Nach, z80 gaiden
+
+#ifndef DSP4EMU_H
+#define DSP4EMU_H
+
+#undef TRUE
+#undef FALSE
+#define TRUE  true
+#define FALSE false
+
+struct DSP4_t
+{
+  bool8 waiting4command;
+  bool8 half_command;
+  uint16 command;
+  uint32 in_count;
+  uint32 in_index;
+  uint32 out_count;
+  uint32 out_index;
+  uint8 parameters[512];
+  uint8 output[512];
+};
+
+extern struct DSP4_t DSP4;
+
+struct DSP4_vars_t
+{
+  // op control
+  int8 DSP4_Logic;            // controls op flow
+
+
+  // projection format
+  int16 lcv;                  // loop-control variable
+  int16 distance;             // z-position into virtual world
+  int16 raster;               // current raster line
+  int16 segments;             // number of raster lines drawn
+
+  // 1.15.16 or 1.15.0 [sign, integer, fraction]
+  int32 world_x;              // line of x-projection in world
+  int32 world_y;              // line of y-projection in world
+  int32 world_dx;             // projection line x-delta
+  int32 world_dy;             // projection line y-delta
+  int16 world_ddx;            // x-delta increment
+  int16 world_ddy;            // y-delta increment
+  int32 world_xenv;           // world x-shaping factor
+  int16 world_yofs;           // world y-vertical scroll
+
+  int16 view_x1;              // current viewer-x
+  int16 view_y1;              // current viewer-y
+  int16 view_x2;              // future viewer-x
+  int16 view_y2;              // future viewer-y
+  int16 view_dx;              // view x-delta factor
+  int16 view_dy;              // view y-delta factor
+  int16 view_xofs1;           // current viewer x-vertical scroll
+  int16 view_yofs1;           // current viewer y-vertical scroll
+  int16 view_xofs2;           // future viewer x-vertical scroll
+  int16 view_yofs2;           // future viewer y-vertical scroll
+  int16 view_yofsenv;         // y-scroll shaping factor
+  int16 view_turnoff_x;       // road turnoff data
+  int16 view_turnoff_dx;      // road turnoff delta factor
+
+
+  // drawing area
+
+  int16 viewport_cx;          // x-center of viewport window
+  int16 viewport_cy;          // y-center of render window
+  int16 viewport_left;        // x-left of viewport
+  int16 viewport_right;       // x-right of viewport
+  int16 viewport_top;         // y-top of viewport
+  int16 viewport_bottom;      // y-bottom of viewport
+
+
+  // sprite structure
+
+  int16 sprite_x;             // projected x-pos of sprite
+  int16 sprite_y;             // projected y-pos of sprite
+  int16 sprite_attr;          // obj attributes
+  bool8 sprite_size;          // sprite size: 8x8 or 16x16
+  int16 sprite_clipy;         // visible line to clip pixels off
+  int16 sprite_count;
+
+  // generic projection variables designed for
+  // two solid polygons + two polygon sides
+
+  int16 poly_clipLf[2][2];    // left clip boundary
+  int16 poly_clipRt[2][2];    // right clip boundary
+  int16 poly_ptr[2][2];       // HDMA structure pointers
+  int16 poly_raster[2][2];    // current raster line below horizon
+  int16 poly_top[2][2];       // top clip boundary
+  int16 poly_bottom[2][2];    // bottom clip boundary
+  int16 poly_cx[2][2];        // center for left/right points
+  int16 poly_start[2];        // current projection points
+  int16 poly_plane[2];        // previous z-plane distance
+
+
+  // OAM
+  int16 OAM_attr[16];         // OAM (size,MSB) data
+  int16 OAM_index;            // index into OAM table
+  int16 OAM_bits;             // offset into OAM table
+
+  int16 OAM_RowMax;           // maximum number of tiles per 8 aligned pixels (row)
+  int16 OAM_Row[32];          // current number of tiles per row
+};
+
+extern struct DSP4_vars_t DSP4_vars;
+
+#endif
@@ -1,7 +1,5 @@
 #include "../../base.h"

-OBC1 *obc1;
-
 void OBC1::init() {}
 void OBC1::enable() {}

@@ -10,81 +8,82 @@ void OBC1::power() {
 }

 void OBC1::reset() {
-  memset(cartridge.ram, 0xff, 0x2000);
-  status.baseptr = (cartridge.ram[0x1ff5] & 1) ? 0x1800 : 0x1c00;
-  status.address = (cartridge.ram[0x1ff6] & 0x7f);
-  status.shift   = (cartridge.ram[0x1ff6] & 3) << 1;
+  for(uint i = 0x0000; i <= 0x1fff; i++) ram_write(i, 0xff);
+
+  status.baseptr = (ram_read(0x1ff5) & 1) ? 0x1800 : 0x1c00;
+  status.address = (ram_read(0x1ff6) & 0x7f);
+  status.shift   = (ram_read(0x1ff6) & 3) << 1;
 }

-uint8 OBC1::read(uint16 addr) {
+uint8 OBC1::read(uint addr) {
  addr &= 0x1fff;
-
-  if((addr & 0x1ff8) != 0x1ff0) {
-    return cartridge.ram[addr];
-  }
+  if((addr & 0x1ff8) != 0x1ff0) return ram_read(addr);

  switch(addr) {
  case 0x1ff0:
-    return cartridge.ram[status.baseptr + (status.address << 2) + 0];
+    return ram_read(status.baseptr + (status.address << 2) + 0);
  case 0x1ff1:
-    return cartridge.ram[status.baseptr + (status.address << 2) + 1];
+    return ram_read(status.baseptr + (status.address << 2) + 1);
  case 0x1ff2:
-    return cartridge.ram[status.baseptr + (status.address << 2) + 2];
+    return ram_read(status.baseptr + (status.address << 2) + 2);
  case 0x1ff3:
-    return cartridge.ram[status.baseptr + (status.address << 2) + 3];
+    return ram_read(status.baseptr + (status.address << 2) + 3);
  case 0x1ff4:
-    return cartridge.ram[status.baseptr + (status.address >> 2) + 0x200];
+    return ram_read(status.baseptr + (status.address >> 2) + 0x200);
  case 0x1ff5:
  case 0x1ff6:
  case 0x1ff7:
-    return cartridge.ram[addr];
+    return ram_read(addr);
  }

-//never used, blocks compiler warning
-  return 0x00;
+  return 0x00; //never used, avoids compiler warning
 }

-void OBC1::write(uint16 addr, uint8 data) {
+void OBC1::write(uint addr, uint8 data) {
  addr &= 0x1fff;
-
-  if((addr & 0x1ff8) != 0x1ff0) {
-    cartridge.ram[addr] = data;
-    return;
-  }
+  if((addr & 0x1ff8) != 0x1ff0) return ram_write(addr, data);

  switch(addr) {
  case 0x1ff0:
-    cartridge.ram[status.baseptr + (status.address << 2) + 0] = data;
+    ram_write(status.baseptr + (status.address << 2) + 0, data);
    break;
  case 0x1ff1:
-    cartridge.ram[status.baseptr + (status.address << 2) + 1] = data;
+    ram_write(status.baseptr + (status.address << 2) + 1, data);
    break;
  case 0x1ff2:
-    cartridge.ram[status.baseptr + (status.address << 2) + 2] = data;
+    ram_write(status.baseptr + (status.address << 2) + 2, data);
    break;
  case 0x1ff3:
-    cartridge.ram[status.baseptr + (status.address << 2) + 3] = data;
+    ram_write(status.baseptr + (status.address << 2) + 3, data);
    break;
  case 0x1ff4: {
  uint8 temp;
-    temp = cartridge.ram[status.baseptr + (status.address >> 2) + 0x200];
+    temp = ram_read(status.baseptr + (status.address >> 2) + 0x200);
    temp = (temp & ~(3 << status.shift)) | ((data & 3) << status.shift);
-    cartridge.ram[status.baseptr + (status.address >> 2) + 0x200] = temp;
+    ram_write(status.baseptr + (status.address >> 2) + 0x200, temp);
  } break;
  case 0x1ff5:
    status.baseptr = (data & 1) ? 0x1800 : 0x1c00;
-    cartridge.ram[addr] = data;
+    ram_write(addr, data);
    break;
  case 0x1ff6:
    status.address = (data & 0x7f);
    status.shift   = (data & 3) << 1;
-    cartridge.ram[addr] = data;
+    ram_write(addr, data);
    break;
  case 0x1ff7:
-    cartridge.ram[addr] = data;
+    ram_write(addr, data);
    break;
  }
 }

+uint8 OBC1::ram_read(uint addr) {
+  return memory::cartram.read(addr & 0x1fff);
+}
+
+void OBC1::ram_write(uint addr, uint8 data) {
+  memory::cartram.write(addr & 0x1fff, data);
+}
+
 OBC1::OBC1() {}
 OBC1::~OBC1() {}
@@ -1,20 +1,25 @@
-class OBC1 {
+class OBC1 : public Memory {
 public:
-struct {
-  uint16 address;
-  uint16 baseptr;
-  uint16 shift;
-} status;
-  void   init();
-  void   enable();
-  void   power();
-  void   reset();
+  void init();
+  void enable();
+  void power();
+  void reset();

-  uint8  read (uint16 addr);
-  void   write(uint16 addr, uint8 data);
+  uint8 read(uint addr);
+  void write(uint addr, uint8 data);

  OBC1();
  ~OBC1();
+
+private:
+  uint8 ram_read(uint addr);
+  void ram_write(uint addr, uint8 data);
+
+  struct {
+    uint16 address;
+    uint16 baseptr;
+    uint16 shift;
+  } status;
 };

-extern OBC1 *obc1;
+extern OBC1 obc1;
@@ -1,15 +1,11 @@
 #include "../../base.h"

-SDD1 *sdd1;
-
 #include "sdd1emu.cpp"

 void SDD1::init() {}

 void SDD1::enable() {
-  for(int i = 0x4800; i <= 0x4807; i++) {
-    r_mem->set_mmio_mapper(i, this);
-  }
+  for(int i = 0x4800; i <= 0x4807; i++) memory::mmio.map(i, *this);
 }

 void SDD1::power() {
@@ -17,59 +13,80 @@ void SDD1::power() {
 }

 void SDD1::reset() {
-  sdd1.index[0] = 0x000000;
-  sdd1.index[1] = 0x100000;
-  sdd1.index[2] = 0x200000;
-  sdd1.index[3] = 0x300000;
-
-  for(int i=0;i<8;i++) {
-    sdd1.active[i] = false;
-  }
-
  sdd1.dma_active = false;
+
+  regs.r4800 = 0x00;
+  regs.r4801 = 0x00;
+
+  regs.r4804 = 0x00;
+  regs.r4805 = 0x01;
+  regs.r4806 = 0x02;
+  regs.r4807 = 0x03;
+
+  bus.map(Bus::MapLinear, 0xc0, 0xcf, 0x0000, 0xffff, memory::cartrom, (regs.r4804 & 7) << 20);
+  bus.map(Bus::MapLinear, 0xd0, 0xdf, 0x0000, 0xffff, memory::cartrom, (regs.r4805 & 7) << 20);
+  bus.map(Bus::MapLinear, 0xe0, 0xef, 0x0000, 0xffff, memory::cartrom, (regs.r4806 & 7) << 20);
+  bus.map(Bus::MapLinear, 0xf0, 0xff, 0x0000, 0xffff, memory::cartrom, (regs.r4807 & 7) << 20);
 }

-uint32 SDD1::offset(uint32 addr) {
-uint8 b = (addr >> 16) & 0xff;
-  if(b <= 0xbf)return 0;
-
-  b  -= 0xc0; //b = 0x00-0x3f
-  b >>= 4;    //b = 0-3
-  b  &= 3;    //bitmask
-
-  return sdd1.index[b] + (addr & 0x0fffff);
-}
-
-uint8 SDD1::mmio_read(uint16 addr) {
-  switch(addr) {
-  //>>20 == 0x100000 == 1mb
-  case 0x4804:return (sdd1.index[0] >> 20) & 7;
-  case 0x4805:return (sdd1.index[1] >> 20) & 7;
-  case 0x4806:return (sdd1.index[2] >> 20) & 7;
-  case 0x4807:return (sdd1.index[3] >> 20) & 7;
+uint8 SDD1::mmio_read(uint addr) {
+  switch(addr & 0xffff) {
+    case 0x4804: return regs.r4804;
+    case 0x4805: return regs.r4805;
+    case 0x4806: return regs.r4806;
+    case 0x4807: return regs.r4807;
  }

-  return r_cpu->regs.mdr;
+  return cpu.regs.mdr;
 }

-void SDD1::mmio_write(uint16 addr, uint8 data) {
-  switch(addr) {
-  case 0x4801:
-    for(int i = 0; i < 8; i++) {
-      sdd1.active[i] = !!(data & (1 << i));
-    }
-    break;
-  //<<20 == 0x100000 == 1mb
-  case 0x4804:sdd1.index[0] = (data & 7) << 20;break;
-  case 0x4805:sdd1.index[1] = (data & 7) << 20;break;
-  case 0x4806:sdd1.index[2] = (data & 7) << 20;break;
-  case 0x4807:sdd1.index[3] = (data & 7) << 20;break;
+void SDD1::mmio_write(uint addr, uint8 data) {
+  switch(addr & 0xffff) {
+    case 0x4800: {
+      regs.r4800 = data;
+    } break;
+
+    case 0x4801: {
+      regs.r4801 = data;
+    } break;
+
+    case 0x4804: {
+      if(regs.r4804 != data) {
+        regs.r4804 = data;
+        bus.map(Bus::MapLinear, 0xc0, 0xcf, 0x0000, 0xffff,
+          memory::cartrom, (regs.r4804 & 7) << 20);
+      }
+    } break;
+
+    case 0x4805: {
+      if(regs.r4805 != data) {
+        regs.r4805 = data;
+        bus.map(Bus::MapLinear, 0xd0, 0xdf, 0x0000, 0xffff,
+          memory::cartrom, (regs.r4805 & 7) << 20);
+      }
+    } break;
+
+    case 0x4806: {
+      if(regs.r4806 != data) {
+        regs.r4806 = data;
+        bus.map(Bus::MapLinear, 0xe0, 0xef, 0x0000, 0xffff,
+          memory::cartrom, (regs.r4806 & 7) << 20);
+      }
+    } break;
+
+    case 0x4807: {
+      if(regs.r4807 != data) {
+        regs.r4807 = data;
+        bus.map(Bus::MapLinear, 0xf0, 0xff, 0x0000, 0xffff,
+          memory::cartrom, (regs.r4807 & 7) << 20);
+      }
+    } break;
  }
 }

 void SDD1::dma_begin(uint8 channel, uint32 addr, uint16 length) {
-  if(sdd1.active[channel] == true) {
-    sdd1.active[channel] = false;
+  if(regs.r4800 & (1 << channel) && regs.r4801 & (1 << channel)) {
+    regs.r4801 &= ~(1 << channel);
    sdd1.dma_active   = true;
    sdd1.buffer_index = 0;
    sdd1.buffer_size  = length;
@@ -82,9 +99,7 @@ bool SDD1::dma_active() {
 }

 uint8 SDD1::dma_read() {
-  if(--sdd1.buffer_size == 0) {
-    sdd1.dma_active = false;
-  }
+  if(--sdd1.buffer_size == 0) sdd1.dma_active = false;

 //sdd1.buffer[] is 65536 bytes, and sdd1.buffer_index
 //is of type uint16, so no buffer overflow is possible
@@ -2,31 +2,38 @@

 class SDD1 : public MMIO {
 public:
-SDD1emu sdd1emu;
+  void init();
+  void enable();
+  void power();
+  void reset();

-struct {
-  uint32 index[4];      //memory mapping registers
-  uint8  buffer[65536]; //pointer to decompressed S-DD1 data,
-                        //max. DMA length is 65536
-  uint16 buffer_index;  //DMA read index into S-DD1 decompression buffer
-  uint16 buffer_size;
-  bool   active[8];     //true when DMA channel should pass through S-DD1
-  bool   dma_active;
-} sdd1;
-  void   init();
-  void   enable();
-  void   power();
-  void   reset();
-  uint32 offset(uint32 addr);
+  uint8 mmio_read (uint addr);
+  void  mmio_write(uint addr, uint8 data);

-  void   dma_begin(uint8 channel, uint32 addr, uint16 length);
-  bool   dma_active();
-  uint8  dma_read();
-
-  uint8  mmio_read (uint16 addr);
-  void   mmio_write(uint16 addr, uint8 data);
+  void  dma_begin(uint8 channel, uint32 addr, uint16 length);
+  bool  dma_active();
+  uint8 dma_read();

  SDD1();
+
+private:
+  SDD1emu sdd1emu;
+
+  struct {
+    uint8  buffer[65536]; //pointer to decompressed S-DD1 data, max DMA length is 65536
+    uint16 buffer_index;  //DMA read index into S-DD1 decompression buffer
+    uint16 buffer_size;
+    bool   dma_active;
+  } sdd1;
+
+  struct {
+    uint8 r4800;
+    uint8 r4801;
+    uint8 r4804;
+    uint8 r4805;
+    uint8 r4806;
+    uint8 r4807;
+  } regs;
 };

-extern SDD1 *sdd1;
+extern SDD1 sdd1;
@@ -28,7 +28,7 @@ understood.

 ************************************************************************/

-#define SDD1_read(__addr) (r_mem->read(__addr))
+#define SDD1_read(__addr) (bus.read(__addr))

 ////////////////////////////////////////////////////

@@ -28,6 +28,7 @@ understood.

 ************************************************************************/

+typedef uint8_t bool8;

 class SDD1_IM {  //Input Manager

@@ -52,8 +52,6 @@

 #include "../../base.h"

-SRTC *srtc;
-
 void SRTC::set_time() {
 time_t rawtime;
 tm *t;
@@ -79,8 +77,8 @@ tm *t;
 void SRTC::init() {}

 void SRTC::enable() {
-  r_mem->set_mmio_mapper(0x2800, this);
-  r_mem->set_mmio_mapper(0x2801, this);
+  memory::mmio.map(0x2800, *this);
+  memory::mmio.map(0x2801, *this);
 }

 void SRTC::power() {
@@ -93,8 +91,8 @@ void SRTC::reset() {
  srtc.mode  = SRTC_READ;
 }

-uint8 SRTC::mmio_read(uint16 addr) {
-  switch(addr) {
+uint8 SRTC::mmio_read(uint addr) {
+  switch(addr & 0xffff) {

  case 0x2800: {
    if(srtc.mode == SRTC_READ) {
@@ -118,7 +116,7 @@ uint8 SRTC::mmio_read(uint16 addr) {

  }

-  return r_cpu->regs.mdr;
+  return cpu.regs.mdr;
 }

 //Please see notes above about the implementation of the S-RTC
@@ -126,8 +124,8 @@ uint8 SRTC::mmio_read(uint16 addr) {
 //as reads will refresh the data array with the current system
 //time. The write method is only here for the sake of faux
 //emulation of the real hardware.
-void SRTC::mmio_write(uint16 addr, uint8 data) {
-  switch(addr) {
+void SRTC::mmio_write(uint addr, uint8 data) {
+  switch(addr & 0xffff) {

  case 0x2800: {
  } break;
@@ -43,10 +43,10 @@ struct {
  void  power();
  void  reset();

-  uint8 mmio_read (uint16 addr);
-  void  mmio_write(uint16 addr, uint8 data);
+  uint8 mmio_read (uint addr);
+  void  mmio_write(uint addr, uint8 data);

  SRTC();
 };

-extern SRTC *srtc;
+extern SRTC srtc;
@@ -0,0 +1,84 @@
+#include "../../base.h"
+#include "st010_data.h"
+#include "st010_op.cpp"
+
+int16 ST010::sin(int16 theta) {
+  return sin_table[(theta >> 8) & 0xff];
+}
+
+int16 ST010::cos(int16 theta) {
+  return sin_table[((theta + 0x4000) >> 8) & 0xff];
+}
+
+uint8 ST010::readb(uint16 addr) {
+  return ram[addr & 0xfff];
+}
+
+uint16 ST010::readw(uint16 addr) {
+  return (readb(addr + 0) <<  0) |
+         (readb(addr + 1) <<  8);
+}
+
+uint32 ST010::readd(uint16 addr) {
+  return (readb(addr + 0) <<  0) |
+         (readb(addr + 1) <<  8) |
+         (readb(addr + 2) << 16) |
+         (readb(addr + 3) << 24);
+}
+
+void ST010::writeb(uint16 addr, uint8 data) {
+  ram[addr & 0xfff] = data;
+}
+
+void ST010::writew(uint16 addr, uint16 data) {
+  writeb(addr + 0, data);
+  writeb(addr + 1, data >> 8);
+}
+
+void ST010::writed(uint16 addr, uint32 data) {
+  writeb(addr + 0, data);
+  writeb(addr + 1, data >> 8);
+  writeb(addr + 2, data >> 16);
+  writeb(addr + 3, data >> 24);
+}
+
+//
+
+void ST010::init() {
+}
+
+void ST010::enable() {
+}
+
+void ST010::power() {
+  reset();
+}
+
+void ST010::reset() {
+  memset(ram, 0x00, sizeof ram);
+}
+
+//
+
+uint8 ST010::read(uint addr) {
+  return readb(addr);
+}
+
+void ST010::write(uint addr, uint8 data) {
+  writeb(addr, data);
+
+  if((addr & 0xfff) == 0x0021 && (data & 0x80)) {
+    switch(ram[0x0020]) {
+      case 0x01: op_01(); break;
+      case 0x02: op_02(); break;
+      case 0x03: op_03(); break;
+      case 0x04: op_04(); break;
+      case 0x05: op_05(); break;
+      case 0x06: op_06(); break;
+      case 0x07: op_07(); break;
+      case 0x08: op_08(); break;
+    }
+
+    ram[0x0021] &= ~0x80;
+  }
+}
@@ -0,0 +1,42 @@
+class ST010 : public Memory {
+public:
+  void init();
+  void enable();
+  void power();
+  void reset();
+
+  uint8 read (uint addr);
+  void  write(uint addr, uint8 data);
+
+private:
+  uint8 ram[0x1000];
+  static const int16 sin_table[256];
+  static const int16 mode7_scale[176];
+  static const uint8 arctan[32][32];
+
+//interfaces to sin table
+  int16 sin(int16 theta);
+  int16 cos(int16 theta);
+
+//interfaces to ram buffer
+  uint8  readb (uint16 addr);
+  uint16 readw (uint16 addr);
+  uint32 readd (uint16 addr);
+  void   writeb(uint16 addr, uint8  data);
+  void   writew(uint16 addr, uint16 data);
+  void   writed(uint16 addr, uint32 data);
+
+//opcodes
+  void op_01();
+  void op_02();
+  void op_03();
+  void op_04();
+  void op_05();
+  void op_06();
+  void op_07();
+  void op_08();
+
+  void op_01(int16 x0, int16 y0, int16 &x1, int16 &y1, int16 &quadrant, int16 &theta);
+};
+
+extern ST010 st010;
@@ -0,0 +1,126 @@
+const int16 ST010::sin_table[256] = {
+   0x0000,  0x0324,  0x0648,  0x096a,  0x0c8c,  0x0fab,  0x12c8,  0x15e2,
+   0x18f9,  0x1c0b,  0x1f1a,  0x2223,  0x2528,  0x2826,  0x2b1f,  0x2e11,
+   0x30fb,  0x33df,  0x36ba,  0x398c,  0x3c56,  0x3f17,  0x41ce,  0x447a,
+   0x471c,  0x49b4,  0x4c3f,  0x4ebf,  0x5133,  0x539b,  0x55f5,  0x5842,
+   0x5a82,  0x5cb3,  0x5ed7,  0x60eb,  0x62f1,  0x64e8,  0x66cf,  0x68a6,
+   0x6a6d,  0x6c23,  0x6dc9,  0x6f5e,  0x70e2,  0x7254,  0x73b5,  0x7504,
+   0x7641,  0x776b,  0x7884,  0x7989,  0x7a7c,  0x7b5c,  0x7c29,  0x7ce3,
+   0x7d89,  0x7e1d,  0x7e9c,  0x7f09,  0x7f61,  0x7fa6,  0x7fd8,  0x7ff5,
+   0x7fff,  0x7ff5,  0x7fd8,  0x7fa6,  0x7f61,  0x7f09,  0x7e9c,  0x7e1d,
+   0x7d89,  0x7ce3,  0x7c29,  0x7b5c,  0x7a7c,  0x7989,  0x7884,  0x776b,
+   0x7641,  0x7504,  0x73b5,  0x7254,  0x70e2,  0x6f5e,  0x6dc9,  0x6c23,
+   0x6a6d,  0x68a6,  0x66cf,  0x64e8,  0x62f1,  0x60eb,  0x5ed7,  0x5cb3,
+   0x5a82,  0x5842,  0x55f5,  0x539b,  0x5133,  0x4ebf,  0x4c3f,  0x49b4,
+   0x471c,  0x447a,  0x41ce,  0x3f17,  0x3c56,  0x398c,  0x36ba,  0x33df,
+   0x30fb,  0x2e11,  0x2b1f,  0x2826,  0x2528,  0x2223,  0x1f1a,  0x1c0b,
+   0x18f8,  0x15e2,  0x12c8,  0x0fab,  0x0c8c,  0x096a,  0x0648,  0x0324,
+   0x0000, -0x0324, -0x0648, -0x096b, -0x0c8c, -0x0fab, -0x12c8, -0x15e2,
+  -0x18f9, -0x1c0b, -0x1f1a, -0x2223, -0x2528, -0x2826, -0x2b1f, -0x2e11,
+  -0x30fb, -0x33df, -0x36ba, -0x398d, -0x3c56, -0x3f17, -0x41ce, -0x447a,
+  -0x471c, -0x49b4, -0x4c3f, -0x4ebf, -0x5133, -0x539b, -0x55f5, -0x5842,
+  -0x5a82, -0x5cb3, -0x5ed7, -0x60ec, -0x62f1, -0x64e8, -0x66cf, -0x68a6,
+  -0x6a6d, -0x6c23, -0x6dc9, -0x6f5e, -0x70e2, -0x7254, -0x73b5, -0x7504,
+  -0x7641, -0x776b, -0x7884, -0x7989, -0x7a7c, -0x7b5c, -0x7c29, -0x7ce3,
+  -0x7d89, -0x7e1d, -0x7e9c, -0x7f09, -0x7f61, -0x7fa6, -0x7fd8, -0x7ff5,
+  -0x7fff, -0x7ff5, -0x7fd8, -0x7fa6, -0x7f61, -0x7f09, -0x7e9c, -0x7e1d,
+  -0x7d89, -0x7ce3, -0x7c29, -0x7b5c, -0x7a7c, -0x7989, -0x7883, -0x776b,
+  -0x7641, -0x7504, -0x73b5, -0x7254, -0x70e2, -0x6f5e, -0x6dc9, -0x6c23,
+  -0x6a6d, -0x68a6, -0x66cf, -0x64e8, -0x62f1, -0x60eb, -0x5ed7, -0x5cb3,
+  -0x5a82, -0x5842, -0x55f5, -0x539a, -0x5133, -0x4ebf, -0x4c3f, -0x49b3,
+  -0x471c, -0x447a, -0x41cd, -0x3f17, -0x3c56, -0x398c, -0x36b9, -0x33de,
+  -0x30fb, -0x2e10, -0x2b1f, -0x2826, -0x2527, -0x2223, -0x1f19, -0x1c0b,
+  -0x18f8, -0x15e2, -0x12c8, -0x0fab, -0x0c8b, -0x096a, -0x0647, -0x0324
+};
+
+const int16 ST010::mode7_scale[176] = {
+  0x0380,  0x0325,  0x02da,  0x029c,  0x0268,  0x023b,  0x0215,  0x01f3,
+  0x01d5,  0x01bb,  0x01a3,  0x018e,  0x017b,  0x016a,  0x015a,  0x014b,
+  0x013e,  0x0132,  0x0126,  0x011c,  0x0112,  0x0109,  0x0100,  0x00f8,
+  0x00f0,  0x00e9,  0x00e3,  0x00dc,  0x00d6,  0x00d1,  0x00cb,  0x00c6,
+  0x00c1,  0x00bd,  0x00b8,  0x00b4,  0x00b0,  0x00ac,  0x00a8,  0x00a5,
+  0x00a2,  0x009e,  0x009b,  0x0098,  0x0095,  0x0093,  0x0090,  0x008d,
+  0x008b,  0x0088,  0x0086,  0x0084,  0x0082,  0x0080,  0x007e,  0x007c,
+  0x007a,  0x0078,  0x0076,  0x0074,  0x0073,  0x0071,  0x006f,  0x006e,
+  0x006c,  0x006b,  0x0069,  0x0068,  0x0067,  0x0065,  0x0064,  0x0063,
+  0x0062,  0x0060,  0x005f,  0x005e,  0x005d,  0x005c,  0x005b,  0x005a,
+  0x0059,  0x0058,  0x0057,  0x0056,  0x0055,  0x0054,  0x0053,  0x0052,
+  0x0051,  0x0051,  0x0050,  0x004f,  0x004e,  0x004d,  0x004d,  0x004c,
+  0x004b,  0x004b,  0x004a,  0x0049,  0x0048,  0x0048,  0x0047,  0x0047,
+  0x0046,  0x0045,  0x0045,  0x0044,  0x0044,  0x0043,  0x0042,  0x0042,
+  0x0041,  0x0041,  0x0040,  0x0040,  0x003f,  0x003f,  0x003e,  0x003e,
+  0x003d,  0x003d,  0x003c,  0x003c,  0x003b,  0x003b,  0x003a,  0x003a,
+  0x003a,  0x0039,  0x0039,  0x0038,  0x0038,  0x0038,  0x0037,  0x0037,
+  0x0036,  0x0036,  0x0036,  0x0035,  0x0035,  0x0035,  0x0034,  0x0034,
+  0x0034,  0x0033,  0x0033,  0x0033,  0x0032,  0x0032,  0x0032,  0x0031,
+  0x0031,  0x0031,  0x0030,  0x0030,  0x0030,  0x0030,  0x002f,  0x002f,
+  0x002f,  0x002e,  0x002e,  0x002e,  0x002e,  0x002d,  0x002d,  0x002d,
+  0x002d,  0x002c,  0x002c,  0x002c,  0x002c,  0x002b,  0x002b,  0x002b
+};
+
+const uint8 ST010::arctan[32][32] = {
+  { 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+    0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80 },
+  { 0x80, 0xa0, 0xad, 0xb3, 0xb6, 0xb8, 0xb9, 0xba, 0xbb, 0xbb, 0xbc, 0xbc, 0xbd, 0xbd, 0xbd, 0xbd,
+    0xbd, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbf, 0xbf, 0xbf, 0xbf },
+  { 0x80, 0x93, 0xa0, 0xa8, 0xad, 0xb0, 0xb3, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xb9, 0xba, 0xba, 0xbb,
+    0xbb, 0xbb, 0xbb, 0xbc, 0xbc, 0xbc, 0xbc, 0xbc, 0xbd, 0xbd, 0xbd, 0xbd, 0xbd, 0xbd, 0xbd, 0xbd },
+  { 0x80, 0x8d, 0x98, 0xa0, 0xa6, 0xaa, 0xad, 0xb0, 0xb1, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb7, 0xb8,
+    0xb8, 0xb9, 0xb9, 0xba, 0xba, 0xba, 0xba, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbc, 0xbc, 0xbc, 0xbc },
+  { 0x80, 0x8a, 0x93, 0x9a, 0xa0, 0xa5, 0xa8, 0xab, 0xad, 0xaf, 0xb0, 0xb2, 0xb3, 0xb4, 0xb5, 0xb5,
+    0xb6, 0xb7, 0xb7, 0xb8, 0xb8, 0xb8, 0xb9, 0xb9, 0xb9, 0xba, 0xba, 0xba, 0xba, 0xba, 0xbb, 0xbb },
+  { 0x80, 0x88, 0x90, 0x96, 0x9b, 0xa0, 0xa4, 0xa7, 0xa9, 0xab, 0xad, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3,
+    0xb4, 0xb4, 0xb5, 0xb6, 0xb6, 0xb6, 0xb7, 0xb7, 0xb8, 0xb8, 0xb8, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9 },
+  { 0x80, 0x87, 0x8d, 0x93, 0x98, 0x9c, 0xa0, 0xa3, 0xa6, 0xa8, 0xaa, 0xac, 0xad, 0xae, 0xb0, 0xb0,
+    0xb1, 0xb2, 0xb3, 0xb4, 0xb4, 0xb5, 0xb5, 0xb6, 0xb6, 0xb6, 0xb7, 0xb7, 0xb7, 0xb8, 0xb8, 0xb8 },
+  { 0x80, 0x86, 0x8b, 0x90, 0x95, 0x99, 0x9d, 0xa0, 0xa3, 0xa5, 0xa7, 0xa9, 0xaa, 0xac, 0xad, 0xae,
+    0xaf, 0xb0, 0xb1, 0xb2, 0xb2, 0xb3, 0xb3, 0xb4, 0xb4, 0xb5, 0xb5, 0xb6, 0xb6, 0xb6, 0xb7, 0xb7 },
+  { 0x80, 0x85, 0x8a, 0x8f, 0x93, 0x97, 0x9a, 0x9d, 0xa0, 0xa2, 0xa5, 0xa6, 0xa8, 0xaa, 0xab, 0xac,
+    0xad, 0xae, 0xaf, 0xb0, 0xb0, 0xb1, 0xb2, 0xb2, 0xb3, 0xb3, 0xb4, 0xb4, 0xb5, 0xb5, 0xb5, 0xb5 },
+  { 0x80, 0x85, 0x89, 0x8d, 0x91, 0x95, 0x98, 0x9b, 0x9e, 0xa0, 0xa0, 0xa4, 0xa6, 0xa7, 0xa9, 0xaa,
+    0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb0, 0xb1, 0xb1, 0xb2, 0xb2, 0xb3, 0xb3, 0xb4, 0xb4, 0xb4 },
+  { 0x80, 0x84, 0x88, 0x8c, 0x90, 0x93, 0x96, 0x99, 0x9b, 0x9e, 0xa0, 0xa2, 0xa4, 0xa5, 0xa7, 0xa8,
+    0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xaf, 0xb0, 0xb0, 0xb1, 0xb2, 0xb2, 0xb2, 0xb3, 0xb3 },
+  { 0x80, 0x84, 0x87, 0x8b, 0x8e, 0x91, 0x94, 0x97, 0x9a, 0x9c, 0x9e, 0xa0, 0xa2, 0xa3, 0xa5, 0xa6,
+    0xa7, 0xa9, 0xaa, 0xab, 0xac, 0xac, 0xad, 0xae, 0xae, 0xaf, 0xb0, 0xb0, 0xb1, 0xb1, 0xb2, 0xb2 },
+  { 0x80, 0x83, 0x87, 0x8a, 0x8d, 0x90, 0x93, 0x96, 0x98, 0x9a, 0x9c, 0x9e, 0xa0, 0xa2, 0xa3, 0xa5,
+    0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xac, 0xad, 0xae, 0xae, 0xaf, 0xb0, 0xb0, 0xb0, 0xb1 },
+  { 0x80, 0x83, 0x86, 0x89, 0x8c, 0x8f, 0x92, 0x94, 0x96, 0x99, 0x9b, 0x9d, 0x9e, 0xa0, 0xa2, 0xa3,
+    0xa4, 0xa5, 0xa7, 0xa8, 0xa9, 0xa9, 0xaa, 0xab, 0xac, 0xac, 0xad, 0xae, 0xae, 0xaf, 0xaf, 0xb0 },
+  { 0x80, 0x83, 0x86, 0x89, 0x8b, 0x8e, 0x90, 0x93, 0x95, 0x97, 0x99, 0x9b, 0x9d, 0x9e, 0xa0, 0xa1,
+    0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xaa, 0xab, 0xac, 0xad, 0xad, 0xae, 0xae, 0xaf },
+  { 0x80, 0x83, 0x85, 0x88, 0x8b, 0x8d, 0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9b, 0x9d, 0x9f, 0xa0,
+    0xa1, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa8, 0xa9, 0xaa, 0xab, 0xab, 0xac, 0xad, 0xad, 0xae },
+  { 0x80, 0x83, 0x85, 0x88, 0x8a, 0x8c, 0x8f, 0x91, 0x93, 0x95, 0x97, 0x99, 0x9a, 0x9c, 0x9d, 0x9f,
+    0xa0, 0xa1, 0xa2, 0xa3, 0xa5, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xaa, 0xab, 0xab, 0xac, 0xad },
+  { 0x80, 0x82, 0x85, 0x87, 0x89, 0x8c, 0x8e, 0x90, 0x92, 0x94, 0x96, 0x97, 0x99, 0x9b, 0x9c, 0x9d,
+    0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa8, 0xa9, 0xaa, 0xaa, 0xab, 0xac },
+  { 0x80, 0x82, 0x85, 0x87, 0x89, 0x8b, 0x8d, 0x8f, 0x91, 0x93, 0x95, 0x96, 0x98, 0x99, 0x9b, 0x9c,
+    0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa7, 0xa8, 0xa9, 0xa9, 0xaa, 0xab },
+  { 0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c, 0x8e, 0x90, 0x92, 0x94, 0x95, 0x97, 0x98, 0x9a, 0x9b,
+    0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa6, 0xa7, 0xa8, 0xa8, 0xa9, 0xaa },
+  { 0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c, 0x8e, 0x90, 0x91, 0x93, 0x94, 0x96, 0x97, 0x99, 0x9a,
+    0x9b, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa5, 0xa6, 0xa7, 0xa7, 0xa8, 0xa9 },
+  { 0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8b, 0x8d, 0x8f, 0x90, 0x92, 0x94, 0x95, 0x97, 0x98, 0x99,
+    0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa4, 0xa5, 0xa6, 0xa6, 0xa7, 0xa8 },
+  { 0x80, 0x82, 0x84, 0x86, 0x87, 0x89, 0x8b, 0x8d, 0x8e, 0x90, 0x91, 0x93, 0x94, 0x96, 0x97, 0x98,
+    0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa3, 0xa4, 0xa5, 0xa6, 0xa6, 0xa7 },
+  { 0x80, 0x82, 0x84, 0x85, 0x87, 0x89, 0x8a, 0x8c, 0x8e, 0x8f, 0x91, 0x92, 0x94, 0x95, 0x96, 0x98,
+    0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa2, 0xa3, 0xa4, 0xa5, 0xa5, 0xa6 },
+  { 0x80, 0x82, 0x83, 0x85, 0x87, 0x88, 0x8a, 0x8c, 0x8d, 0x8f, 0x90, 0x92, 0x93, 0x94, 0x96, 0x97,
+    0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa2, 0xa3, 0xa4, 0xa5, 0xa5 },
+  { 0x80, 0x82, 0x83, 0x85, 0x86, 0x88, 0x8a, 0x8b, 0x8d, 0x8e, 0x90, 0x91, 0x92, 0x94, 0x95, 0x96,
+    0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa2, 0xa3, 0xa4, 0xa4 },
+  { 0x80, 0x82, 0x83, 0x85, 0x86, 0x88, 0x89, 0x8b, 0x8c, 0x8e, 0x8f, 0x90, 0x92, 0x93, 0x94, 0x95,
+    0x96, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa2, 0xa3, 0xa4 },
+  { 0x80, 0x82, 0x83, 0x85, 0x86, 0x87, 0x89, 0x8a, 0x8c, 0x8d, 0x8e, 0x90, 0x91, 0x92, 0x93, 0x95,
+    0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9e, 0x9f, 0xa0, 0xa1, 0xa1, 0xa2, 0xa3 },
+  { 0x80, 0x81, 0x83, 0x84, 0x86, 0x87, 0x89, 0x8a, 0x8b, 0x8d, 0x8e, 0x8f, 0x90, 0x92, 0x93, 0x94,
+    0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9e, 0x9f, 0xa0, 0xa1, 0xa1, 0xa2 },
+  { 0x80, 0x81, 0x83, 0x84, 0x86, 0x87, 0x88, 0x8a, 0x8b, 0x8c, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93,
+    0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0x9f, 0xa0, 0xa1, 0xa1 },
+  { 0x80, 0x81, 0x83, 0x84, 0x85, 0x87, 0x88, 0x89, 0x8b, 0x8c, 0x8d, 0x8e, 0x90, 0x91, 0x92, 0x93,
+    0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0x9f, 0xa0, 0xa1 },
+  { 0x80, 0x81, 0x83, 0x84, 0x85, 0x87, 0x88, 0x89, 0x8a, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92,
+    0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9c, 0x9d, 0x9e, 0x9f, 0x9f, 0xa0 }
+};
@@ -0,0 +1,257 @@
+//ST-010 emulation code - Copyright (C) 2003 The Dumper, Matthew Kendora, Overload, Feather
+//bsnes port - Copyright (C) 2007 byuu
+
+void ST010::op_01(int16 x0, int16 y0, int16 &x1, int16 &y1, int16 &quadrant, int16 &theta) {
+  if((x0 < 0) && (y0 < 0)) {
+    x1 = -x0;
+    y1 = -y0;
+    quadrant = -0x8000;
+  } else if(x0 < 0) {
+    x1 = y0;
+    y1 = -x0;
+    quadrant = -0x4000;
+  } else if(y0 < 0) {
+    x1 = -y0;
+    y1 = x0;
+    quadrant = 0x4000;
+  } else {
+    x1 = x0;
+    y1 = y0;
+    quadrant = 0x0000;
+  }
+
+  while((x1 > 0x1f) || (y1 > 0x1f)) {
+    if(x1 > 1) { x1 >>= 1; }
+    if(y1 > 1) { y1 >>= 1; }
+  }
+
+  if(y1 == 0) { quadrant += 0x4000; }
+
+  theta = (arctan[y1][x1] << 8) ^ quadrant;
+}
+
+//
+
+void ST010::op_01() {
+int16 x0 = readw(0x0000);
+int16 y0 = readw(0x0002);
+int16 x1, y1, quadrant, theta;
+
+  op_01(x0, y0, x1, y1, quadrant, theta);
+
+  writew(0x0000, x1);
+  writew(0x0002, y1);
+  writew(0x0004, quadrant);
+//writew(0x0006, y0); //Overload's docs note this write occurs, SNES9x disagrees
+  writew(0x0010, theta);
+}
+
+void ST010::op_02() {
+int16 positions = readw(0x0024);
+uint16 *places  = (uint16*)(ram + 0x0040);
+uint16 *drivers = (uint16*)(ram + 0x0080);
+
+bool sorted;
+uint16 temp;
+  if(positions > 1) {
+    do {
+      sorted = true;
+      for(int i = 0; i < positions - 1; i++) {
+        if(places[i] < places[i + 1]) {
+          temp = places[i + 1];
+          places[i + 1] = places[i];
+          places[i] = temp;
+
+          temp = drivers[i + 1];
+          drivers[i + 1] = drivers[i];
+          drivers[i] = temp;
+
+          sorted = false;
+        }
+      }
+      positions--;
+    } while(!sorted);
+  }
+}
+
+void ST010::op_03() {
+int16 x0 = readw(0x0000);
+int16 y0 = readw(0x0002);
+int16 multiplier = readw(0x0004);
+int32 x1, y1;
+
+  x1 = x0 * multiplier << 1;
+  y1 = y0 * multiplier << 1;
+
+  writed(0x0010, x1);
+  writed(0x0014, y1);
+}
+
+void ST010::op_04() {
+int16 x = readw(0x0000);
+int16 y = readw(0x0002);
+int16 square;
+//calculate the vector length of (x,y)
+  square = (int16)sqrt((double)(y * y + x * x));
+
+  writew(0x0010, square);
+}
+
+void ST010::op_05() {
+int32 dx, dy;
+int16 a1, b1, c1;
+uint16 o1;
+bool wrap = false;
+
+//target (x,y) coordinates
+int16 ypos_max = readw(0x00c0);
+int16 xpos_max = readw(0x00c2);
+
+//current coordinates and direction
+int32 ypos = readd(0x00c4);
+int32 xpos = readd(0x00c8);
+uint16 rot = readw(0x00cc);
+
+//physics
+uint16 speed = readw(0x00d4);
+uint16 accel = readw(0x00d6);
+uint16 speed_max = readw(0x00d8);
+
+//special condition acknowledgement
+int16 system = readw(0x00da);
+int16 flags = readw(0x00dc);
+
+//new target coordinates
+int16 ypos_new = readw(0x00de);
+int16 xpos_new = readw(0x00e0);
+
+//mask upper bit
+  xpos_new &= 0x7fff;
+
+//get the current distance
+  dx = xpos_max - (xpos >> 16);
+  dy = ypos_max - (ypos >> 16);
+
+//quirk: clear and move in9
+  writew(0x00d2, 0xffff);
+  writew(0x00da, 0x0000);
+
+//grab the target angle
+  op_01(dy, dx, a1, b1, c1, (int16&)o1);
+
+//check for wrapping
+  if(abs(o1 - rot) > 0x8000) {
+    o1 += 0x8000;
+    rot += 0x8000;
+    wrap = true;
+  }
+
+uint16 old_speed = speed;
+
+//special case
+  if(abs(o1 - rot) == 0x8000) {
+    speed = 0x100;
+  }
+
+//slow down for sharp curves
+  else if(abs(o1 - rot) >= 0x1000) {
+  uint32 slow = abs(o1 - rot);
+    slow >>= 4; //scaling
+    speed -= slow;
+  }
+
+//otherwise accelerate
+  else {
+    speed += accel;
+    if(speed > speed_max) {
+      speed = speed_max; //clip speed
+    }
+  }
+
+//prevent negative/positive overflow
+  if(abs(old_speed - speed) > 0x8000) {
+    if(old_speed < speed) { speed = 0; }
+    else speed = 0xff00;
+  }
+
+//adjust direction by so many degrees
+//be careful of negative adjustments
+  if((o1 > rot && (o1 - rot) > 0x80) || (o1 < rot && (rot - o1) >= 0x80)) {
+    if(o1 < rot) { rot -= 0x280; }
+    else if(o1 > rot) { rot += 0x280; }
+  }
+
+//turn of wrapping
+  if(wrap) { rot -= 0x8000; }
+
+//now check the distances (store for later)
+  dx = (xpos_max << 16) - xpos;
+  dy = (ypos_max << 16) - ypos;
+  dx >>= 16;
+  dy >>= 16;
+
+//if we're in so many units of the target, signal it
+  if((system && (dy <= 6 && dy >= -8) && (dx <= 126 && dx >= -128)) || (!system && (dx <= 6 && dx >= -8) && (dy <= 126 && dy >= -128))) {
+  //announce our new destination and flag it
+    xpos_max = xpos_new & 0x7fff;
+    ypos_max = ypos_new;
+    flags |= 0x08;
+  }
+
+//update position
+  xpos -= (cos(rot) * 0x400 >> 15) * (speed >> 8) << 1;
+  ypos -= (sin(rot) * 0x400 >> 15) * (speed >> 8) << 1;
+
+//quirk: mask upper byte
+  xpos &= 0x1fffffff;
+  ypos &= 0x1fffffff;
+
+  writew(0x00c0, ypos_max);
+  writew(0x00c2, xpos_max);
+  writed(0x00c4, ypos);
+  writed(0x00c8, xpos);
+  writew(0x00cc, rot);
+  writew(0x00d4, speed);
+  writew(0x00dc, flags);
+}
+
+void ST010::op_06() {
+int16 multiplicand = readw(0x0000);
+int16 multiplier = readw(0x0002);
+int32 product;
+
+  product = multiplicand * multiplier << 1;
+
+  writed(0x0010, product);
+}
+
+void ST010::op_07() {
+int16 theta = readw(0x0000);
+
+int16 data;
+  for(int i = 0, offset = 0; i < 176; i++) {
+    data = mode7_scale[i] * cos(theta) >> 15;
+    writew(0x00f0 + offset, data);
+    writew(0x0510 + offset, data);
+
+    data = mode7_scale[i] * sin(theta) >> 15;
+    writew(0x0250 + offset, data);
+    if(data) { data = ~data; }
+    writew(0x03b0 + offset, data);
+
+    offset += 2;
+  }
+}
+
+void ST010::op_08() {
+int16 x0 = readw(0x0000);
+int16 y0 = readw(0x0002);
+int16 theta = readw(0x0004);
+int16 x1, y1;
+
+  x1 = (y0 * sin(theta) >> 15) + (x0 * cos(theta) >> 15);
+  y1 = (y0 * cos(theta) >> 15) - (x0 * sin(theta) >> 15);
+
+  writew(0x0010, x1);
+  writew(0x0012, y1);
+}
@@ -0,0 +1 @@
+@make platform=win compiler=mingw32-gcc clean
@@ -0,0 +1 @@
+make platform=x compiler=gcc clean
@@ -1,7 +1,10 @@
-Config config_file;
-
 namespace config {

+configuration& config() {
+static configuration config;
+  return config;
+}
+
 string file_updatepath(const char *req_file, const char *req_path) {
 string file(req_file);
  replace(file, "\\", "/");
@@ -12,96 +15,115 @@ string path(req_path);
  if(!strend(path, "/")) { strcat(path, "/"); }

  if(strbegin(path, "./")) {
-    strltrim(path, "./");
+    ltrim(path(), "./");
  string temp;
    strcpy(temp, config::path.base);
    strcat(temp, path);
    strcpy(path, temp);
  }

-stringarray part;
+lstring part;
  split(part, "/", file);
  strcat(path, part[count(part) - 1]);
  return path;
 }

-Setting Path::base(0, "fs.base_path",
+string_setting Path::base("path.base",
  "Path that bsnes resides in", "");
-Setting Path::rom(&config_file, "path.rom",
+string_setting Path::rom(config(), "path.rom",
  "Default path to look for ROM files in (\"\" = use default directory)", "");
-Setting Path::save(&config_file, "path.save",
+string_setting Path::save(config(), "path.save",
  "Default path for all save RAM and cheat files (\"\" = use current directory)", "");
-Setting Path::bios(&config_file, "path.bios",
-  "Path where BIOS file(s) are located\n"
-  "Supported BIOS files:\n"
-  "stbios.bin - Bandai Sufami Turbo"
-  "", "./bios");
+string_setting Path::bsx(config(), "path.bsx", "", "");
+string_setting Path::st(config(), "path.st", "", "");

-Setting Path::save_ext(&config_file, "path.save_ext",
-  "Extension to be used for all save RAM files", "srm");
+integral_setting SNES::gamma_ramp(config(), "snes.colorfilter.gamma_ramp",
+  "Use precalculated TV-style gamma ramp", integral_setting::boolean, true);
+integral_setting SNES::sepia(config(), "snes.colorfilter.sepia",
+  "Convert color to sepia tone", integral_setting::boolean, false);
+integral_setting SNES::grayscale(config(), "snes.colorfilter.grayscale",
+  "Convert color to grayscale tone", integral_setting::boolean, false);
+integral_setting SNES::invert(config(), "snes.colorfilter.invert",
+  "Invert output image colors", integral_setting::boolean, false);
+integral_setting SNES::contrast(config(), "snes.colorfilter.contrast",
+  "Contrast", integral_setting::decimal, 0);
+integral_setting SNES::brightness(config(), "snes.colorfilter.brightness",
+  "Brightness", integral_setting::decimal, 0);
+integral_setting SNES::gamma(config(), "snes.colorfilter.gamma",
+  "Gamma", integral_setting::decimal, 80);

-Setting SNES::gamma_ramp(&config_file, "snes.colorfilter.gamma_ramp",
-  "Use precalculated TV-style gamma ramp", true, Setting::BOOL);
-Setting SNES::sepia(&config_file, "snes.colorfilter.sepia",
-  "Convert color to sepia tone", false, Setting::BOOL);
-Setting SNES::grayscale(&config_file, "snes.colorfilter.grayscale",
-  "Convert color to grayscale tone", false, Setting::BOOL);
-Setting SNES::invert(&config_file, "snes.colorfilter.invert",
-  "Invert output image colors", false, Setting::BOOL);
-Setting SNES::contrast(&config_file, "snes.colorfilter.contrast",
-  "Contrast", 0,  Setting::DEC);
-Setting SNES::brightness(&config_file, "snes.colorfilter.brightness",
-  "Brightness", 0, Setting::DEC);
-Setting SNES::gamma(&config_file, "snes.colorfilter.gamma",
-  "Gamma", 80, Setting::DEC);
-
-Setting SNES::ntsc_merge_fields(&config_file, "snes.ntsc_merge_fields",
+integral_setting SNES::ntsc_merge_fields(config(), "snes.ntsc_merge_fields",
  "Merge fields in NTSC video filter\n"
  "Set to true if using filter at any refresh rate other than 60hz\n"
-  "", true, Setting::BOOL);
+  "", integral_setting::boolean, true);

-Setting SNES::mute(&config_file, "snes.mute", "Mutes SNES audio output when enabled",
-  false, Setting::BOOL);
+integral_setting SNES::controller_port0(config(), "snes.controller_port_1",
+  "Controller attached to SNES port 1", integral_setting::decimal, ::SNES::DEVICEID_JOYPAD1);
+integral_setting SNES::controller_port1(config(), "snes.controller_port_2",
+  "Controller attached to SNES port 2", integral_setting::decimal, ::SNES::DEVICEID_JOYPAD2);

-Setting SNES::controller_port0(&config_file, "snes.controller_port_1",
-  "Controller attached to SNES port 1", ::SNES::DEVICEID_JOYPAD1, Setting::DEC);
-Setting SNES::controller_port1(&config_file, "snes.controller_port_2",
-  "Controller attached to SNES port 2", ::SNES::DEVICEID_JOYPAD2, Setting::DEC);
+integral_setting CPU::ntsc_clock_rate(config(), "cpu.ntsc_clock_rate",
+  "NTSC S-CPU clock rate (in hz)", integral_setting::decimal, 21477272);
+integral_setting CPU::pal_clock_rate(config(), "cpu.pal_clock_rate",
+  "PAL S-CPU clock rate (in hz)", integral_setting::decimal, 21281370);
+integral_setting CPU::wram_init_value(config(), "cpu.wram_init_value",
+  "Value to initialize 128k WRAM to upon power cycle.\n"
+  "Note that on real hardware, this value is undefined; meaning it can vary\n"
+  "per power-on, and per SNES unit. Such randomness is undesirable for an\n"
+  "emulator, so a static value is needed. There is also some form of pattern\n"
+  "to the randomness that has yet to be determined, which some games rely upon.\n"
+  "A value of 0x55 is safe for all known commercial software, and should be used.\n"
+  "However, some software written for SNES copiers, or backup units, relies on\n"
+  "WRAM being initialized to 0x00; which was a side-effect of the BIOS program\n"
+  "which executed on these copiers. Using 0x00 will therefore fix many homebrew\n"
+  "programs, but *will* break some poorly programmed commercial software titles,\n"
+  "which do not properly initialize WRAM upon power cycle.\n",
+  integral_setting::hex, 0x55);

-Setting CPU::ntsc_clock_rate(&config_file, "cpu.ntsc_clock_rate",
-  "NTSC S-CPU clock rate (in hz)", 21477272, Setting::DEC);
-Setting CPU::pal_clock_rate(&config_file, "cpu.pal_clock_rate",
-  "PAL S-CPU clock rate (in hz)", 21281370, Setting::DEC);
+integral_setting CPU::hdma_enable("cpu.hdma_enable",
+  "Enable HDMA effects", integral_setting::boolean, true);

-Setting CPU::hdma_enable(0, "cpu.hdma_enable",
-  "Enable HDMA effects", true, Setting::BOOL);
+integral_setting SMP::ntsc_clock_rate(config(), "smp.ntsc_clock_rate",
+  "NTSC S-SMP clock rate (in hz)", integral_setting::decimal, 24606720);
+integral_setting SMP::pal_clock_rate(config(), "smp.pal_clock_rate",
+  "PAL S-SMP clock rate (in hz)", integral_setting::decimal, 24606720);

-Setting SMP::ntsc_clock_rate(&config_file, "smp.ntsc_clock_rate",
-  "NTSC S-SMP clock rate (in hz)", 24606720, Setting::DEC);
-Setting SMP::pal_clock_rate(&config_file, "smp.pal_clock_rate",
-  "PAL S-SMP clock rate (in hz)", 24606720, Setting::DEC);
-
-Setting PPU::Hack::render_scanline_position(&config_file, "ppu.hack.render_scanline_position",
+integral_setting PPU::Hack::render_scanline_position(config(), "ppu.hack.render_scanline_position",
  "Approximate HCLOCK position to render at for scanline-based renderers",
-  512, Setting::DEC);
-Setting PPU::Hack::obj_cache(&config_file, "ppu.hack.obj_cache",
+  integral_setting::decimal, 512);
+integral_setting PPU::Hack::obj_cache(config(), "ppu.hack.obj_cache",
  "Cache OAM OBJ attributes one scanline before rendering\n"
  "This is technically closer to the actual operation of the SNES,\n"
-  "but can cause problems in many games if enabled",
-  false, Setting::BOOL);
+  "but can cause problems in some games if enabled",
+  integral_setting::boolean, false);
+integral_setting PPU::Hack::oam_address_invalidation(config(), "ppu.hack.oam_address_invalidation",
+  "OAM access address changes during active display, as the S-PPU reads\n"
+  "data to render the display. Thusly, the address retrieved when accessing\n"
+  "OAM during active display is unpredictable. Unfortunately, the exact\n"
+  "algorithm for this is completely unknown at this time. It is more hardware\n"
+  "accurate to enable this setting, but one must *not* rely on the actual\n"
+  "address to match hardware under emulation.",
+  integral_setting::boolean, true);
+integral_setting PPU::Hack::cgram_address_invalidation(config(), "ppu.hack.cgram_address_invalidation",
+  "CGRAM access address changes during active display (excluding hblank), as\n"
+  "the S-PPU reads data to render the display. Thusly, as with OAM, the access\n"
+  "address is unpredictable. Again, enabling this setting is more hardware\n"
+  "accurate, but one must *not* rely on the actual address to match hardware\n"
+  "under emulation.",
+  integral_setting::boolean, true);

-Setting PPU::opt_enable(0, "ppu.opt_enable", "Enable offset-per-tile effects", true, Setting::BOOL);
-Setting PPU::bg1_pri0_enable(0, "ppu.bg1_pri0_enable", "Enable BG1 Priority 0", true, Setting::BOOL);
-Setting PPU::bg1_pri1_enable(0, "ppu.bg1_pri1_enable", "Enable BG1 Priority 1", true, Setting::BOOL);
-Setting PPU::bg2_pri0_enable(0, "ppu.bg2_pri0_enable", "Enable BG2 Priority 0", true, Setting::BOOL);
-Setting PPU::bg2_pri1_enable(0, "ppu.bg2_pri1_enable", "Enable BG2 Priority 1", true, Setting::BOOL);
-Setting PPU::bg3_pri0_enable(0, "ppu.bg3_pri0_enable", "Enable BG3 Priority 0", true, Setting::BOOL);
-Setting PPU::bg3_pri1_enable(0, "ppu.bg3_pri1_enable", "Enable BG3 Priority 1", true, Setting::BOOL);
-Setting PPU::bg4_pri0_enable(0, "ppu.bg4_pri0_enable", "Enable BG4 Priority 0", true, Setting::BOOL);
-Setting PPU::bg4_pri1_enable(0, "ppu.bg4_pri1_enable", "Enable BG4 Priority 1", true, Setting::BOOL);
-Setting PPU::oam_pri0_enable(0, "ppu.oam_pri0_enable", "Enable OAM Priority 0", true, Setting::BOOL);
-Setting PPU::oam_pri1_enable(0, "ppu.oam_pri1_enable", "Enable OAM Priority 1", true, Setting::BOOL);
-Setting PPU::oam_pri2_enable(0, "ppu.oam_pri2_enable", "Enable OAM Priority 2", true, Setting::BOOL);
-Setting PPU::oam_pri3_enable(0, "ppu.oam_pri3_enable", "Enable OAM Priority 3", true, Setting::BOOL);
+integral_setting PPU::opt_enable("ppu.opt_enable", "Enable offset-per-tile effects", integral_setting::boolean, true);
+integral_setting PPU::bg1_pri0_enable("ppu.bg1_pri0_enable", "Enable BG1 Priority 0", integral_setting::boolean, true);
+integral_setting PPU::bg1_pri1_enable("ppu.bg1_pri1_enable", "Enable BG1 Priority 1", integral_setting::boolean, true);
+integral_setting PPU::bg2_pri0_enable("ppu.bg2_pri0_enable", "Enable BG2 Priority 0", integral_setting::boolean, true);
+integral_setting PPU::bg2_pri1_enable("ppu.bg2_pri1_enable", "Enable BG2 Priority 1", integral_setting::boolean, true);
+integral_setting PPU::bg3_pri0_enable("ppu.bg3_pri0_enable", "Enable BG3 Priority 0", integral_setting::boolean, true);
+integral_setting PPU::bg3_pri1_enable("ppu.bg3_pri1_enable", "Enable BG3 Priority 1", integral_setting::boolean, true);
+integral_setting PPU::bg4_pri0_enable("ppu.bg4_pri0_enable", "Enable BG4 Priority 0", integral_setting::boolean, true);
+integral_setting PPU::bg4_pri1_enable("ppu.bg4_pri1_enable", "Enable BG4 Priority 1", integral_setting::boolean, true);
+integral_setting PPU::oam_pri0_enable("ppu.oam_pri0_enable", "Enable OAM Priority 0", integral_setting::boolean, true);
+integral_setting PPU::oam_pri1_enable("ppu.oam_pri1_enable", "Enable OAM Priority 1", integral_setting::boolean, true);
+integral_setting PPU::oam_pri2_enable("ppu.oam_pri2_enable", "Enable OAM Priority 2", integral_setting::boolean, true);
+integral_setting PPU::oam_pri3_enable("ppu.oam_pri3_enable", "Enable OAM Priority 3", integral_setting::boolean, true);

 };
@@ -1,44 +1,46 @@
-extern Config config_file;
-
 namespace config {

+extern configuration& config();
+
 string file_updatepath(const char *, const char *);

 extern struct Path {
-  static Setting base, rom, save, bios;
-  static Setting save_ext;
+  static string_setting base, rom, save;
+  static string_setting bsx, st;
 } path;

 extern struct SNES {
-  static Setting gamma_ramp, sepia, grayscale, invert, contrast, brightness, gamma;
-  static Setting ntsc_merge_fields;
-  static Setting mute;
-  static Setting controller_port0;
-  static Setting controller_port1;
+  static integral_setting gamma_ramp, sepia, grayscale, invert, contrast, brightness, gamma;
+  static integral_setting ntsc_merge_fields;
+  static integral_setting controller_port0;
+  static integral_setting controller_port1;
 } snes;

 extern struct CPU {
-  static Setting ntsc_clock_rate, pal_clock_rate;
-  static Setting hdma_enable;
+  static integral_setting ntsc_clock_rate, pal_clock_rate;
+  static integral_setting wram_init_value;
+  static integral_setting hdma_enable;
 } cpu;

 extern struct SMP {
-  static Setting ntsc_clock_rate, pal_clock_rate;
+  static integral_setting ntsc_clock_rate, pal_clock_rate;
 } smp;

 extern struct PPU {
  struct Hack {
-    static Setting render_scanline_position;
-    static Setting obj_cache;
+    static integral_setting render_scanline_position;
+    static integral_setting obj_cache;
+    static integral_setting oam_address_invalidation;
+    static integral_setting cgram_address_invalidation;
  } hack;

-  static Setting opt_enable;
-  static Setting bg1_pri0_enable, bg1_pri1_enable;
-  static Setting bg2_pri0_enable, bg2_pri1_enable;
-  static Setting bg3_pri0_enable, bg3_pri1_enable;
-  static Setting bg4_pri0_enable, bg4_pri1_enable;
-  static Setting oam_pri0_enable, oam_pri1_enable;
-  static Setting oam_pri2_enable, oam_pri3_enable;
+  static integral_setting opt_enable;
+  static integral_setting bg1_pri0_enable, bg1_pri1_enable;
+  static integral_setting bg2_pri0_enable, bg2_pri1_enable;
+  static integral_setting bg3_pri0_enable, bg3_pri1_enable;
+  static integral_setting bg4_pri0_enable, bg4_pri1_enable;
+  static integral_setting oam_pri0_enable, oam_pri1_enable;
+  static integral_setting oam_pri2_enable, oam_pri3_enable;
 } ppu;

 };
@@ -3,7 +3,7 @@ public:
 union {
  uint8 data;
  struct {
-    uint8 order_msb8(n:1, v:1, m:1, x:1, d:1, i:1, z:1, c:1);
+    bool order_msb8(n:1, v:1, m:1, x:1, d:1, i:1, z:1, c:1);
  };
 };

@@ -4,7 +4,7 @@ uint8  CPU::dreadb(uint32 addr) {
  //do not read MMIO registers within debugger
    return 0x00;
  }
-  return r_mem->read(addr);
+  return bus.read(addr);
 }

 uint16 CPU::dreadw(uint32 addr) {
@@ -1,33 +1,31 @@
 #include "opfn.cpp"

-void sCPU::enter() {
-  for(;;) {
-    if(event.irq) {
-      event.irq = false;
-      if(status.nmi_pending == true) {
-        status.nmi_pending = false;
-        event.irq_vector = (regs.e == false) ? 0xffea : 0xfffa;
-      } else if(status.irq_pending == true) {
-        status.irq_pending = false;
-        event.irq_vector = (regs.e == false) ? 0xffee : 0xfffe;
-      }
-      op_irq();
+#include "op_read.cpp"
+#include "op_write.cpp"
+#include "op_rmw.cpp"
+#include "op_pc.cpp"
+#include "op_misc.cpp"
+
+void sCPU::enter() { loop:
+  if(event.irq) {
+    event.irq = false;
+    if(status.nmi_pending == true) {
+      status.nmi_pending = false;
+      event.irq_vector = (regs.e == false) ? 0xffea : 0xfffa;
+    } else if(status.irq_pending == true) {
+      status.irq_pending = false;
+      event.irq_vector = (regs.e == false) ? 0xffee : 0xfffe;
    }
-
-    tracer.trace_cpuop(); //traces CPU opcode (only if tracer is enabled)
-
-    status.in_opcode = true;
-
-    switch(op_readpc()) {
-      #include "op_read.cpp"
-      #include "op_write.cpp"
-      #include "op_rmw.cpp"
-      #include "op_pc.cpp"
-      #include "op_misc.cpp"
-    }
-
-    status.in_opcode = false;
+    op_irq();
  }
+
+  tracer.trace_cpuop(); //traces CPU opcode (only if tracer is enabled)
+
+  status.in_opcode = true;
+  (this->*optbl[op_readpc()])();
+  status.in_opcode = false;
+
+  goto loop;
 }

 void sCPU::op_irq() {
@@ -1,4 +1,4 @@
-//void (sCPU::*optbl[256])();
+void (sCPU::*optbl[256])();

 CPUReg24 aa, rd;
 uint8    dp, sp;
@@ -54,4 +54,4 @@ uint8    dp, sp;
  void   op_io_cond4(uint16 x, uint16 y);
  void   op_io_cond6(uint16 addr);

-//#include "op.h"
+#include "op.h"
@@ -0,0 +1,256 @@
+void op_adc_const();
+void op_and_const();
+void op_cmp_const();
+void op_cpx_const();
+void op_cpy_const();
+void op_eor_const();
+void op_lda_const();
+void op_ldx_const();
+void op_ldy_const();
+void op_ora_const();
+void op_sbc_const();
+void op_adc_addr();
+void op_and_addr();
+void op_bit_addr();
+void op_cmp_addr();
+void op_cpx_addr();
+void op_cpy_addr();
+void op_eor_addr();
+void op_lda_addr();
+void op_ldx_addr();
+void op_ldy_addr();
+void op_ora_addr();
+void op_sbc_addr();
+void op_adc_addrx();
+void op_and_addrx();
+void op_bit_addrx();
+void op_cmp_addrx();
+void op_eor_addrx();
+void op_lda_addrx();
+void op_ldy_addrx();
+void op_ora_addrx();
+void op_sbc_addrx();
+void op_adc_addry();
+void op_and_addry();
+void op_cmp_addry();
+void op_eor_addry();
+void op_lda_addry();
+void op_ldx_addry();
+void op_ora_addry();
+void op_sbc_addry();
+void op_adc_long();
+void op_and_long();
+void op_cmp_long();
+void op_eor_long();
+void op_lda_long();
+void op_ora_long();
+void op_sbc_long();
+void op_adc_longx();
+void op_and_longx();
+void op_cmp_longx();
+void op_eor_longx();
+void op_lda_longx();
+void op_ora_longx();
+void op_sbc_longx();
+void op_adc_dp();
+void op_and_dp();
+void op_bit_dp();
+void op_cmp_dp();
+void op_cpx_dp();
+void op_cpy_dp();
+void op_eor_dp();
+void op_lda_dp();
+void op_ldx_dp();
+void op_ldy_dp();
+void op_ora_dp();
+void op_sbc_dp();
+void op_adc_dpx();
+void op_and_dpx();
+void op_bit_dpx();
+void op_cmp_dpx();
+void op_eor_dpx();
+void op_lda_dpx();
+void op_ldy_dpx();
+void op_ora_dpx();
+void op_sbc_dpx();
+void op_ldx_dpy();
+void op_adc_idp();
+void op_and_idp();
+void op_cmp_idp();
+void op_eor_idp();
+void op_lda_idp();
+void op_ora_idp();
+void op_sbc_idp();
+void op_adc_idpx();
+void op_and_idpx();
+void op_cmp_idpx();
+void op_eor_idpx();
+void op_lda_idpx();
+void op_ora_idpx();
+void op_sbc_idpx();
+void op_adc_idpy();
+void op_and_idpy();
+void op_cmp_idpy();
+void op_eor_idpy();
+void op_lda_idpy();
+void op_ora_idpy();
+void op_sbc_idpy();
+void op_adc_ildp();
+void op_and_ildp();
+void op_cmp_ildp();
+void op_eor_ildp();
+void op_lda_ildp();
+void op_ora_ildp();
+void op_sbc_ildp();
+void op_adc_ildpy();
+void op_and_ildpy();
+void op_cmp_ildpy();
+void op_eor_ildpy();
+void op_lda_ildpy();
+void op_ora_ildpy();
+void op_sbc_ildpy();
+void op_adc_sr();
+void op_and_sr();
+void op_cmp_sr();
+void op_eor_sr();
+void op_lda_sr();
+void op_ora_sr();
+void op_sbc_sr();
+void op_adc_isry();
+void op_and_isry();
+void op_cmp_isry();
+void op_eor_isry();
+void op_lda_isry();
+void op_ora_isry();
+void op_sbc_isry();
+void op_bit_const();
+void op_sta_addr();
+void op_stx_addr();
+void op_sty_addr();
+void op_stz_addr();
+void op_sta_addrx();
+void op_stz_addrx();
+void op_sta_addry();
+void op_sta_long();
+void op_sta_longx();
+void op_sta_dp();
+void op_stx_dp();
+void op_sty_dp();
+void op_stz_dp();
+void op_sta_dpx();
+void op_sty_dpx();
+void op_stz_dpx();
+void op_stx_dpy();
+void op_sta_idp();
+void op_sta_ildp();
+void op_sta_idpx();
+void op_sta_idpy();
+void op_sta_ildpy();
+void op_sta_sr();
+void op_sta_isry();
+void op_inc();
+void op_inx();
+void op_iny();
+void op_dec();
+void op_dex();
+void op_dey();
+void op_asl();
+void op_lsr();
+void op_rol();
+void op_ror();
+void op_inc_addr();
+void op_dec_addr();
+void op_asl_addr();
+void op_lsr_addr();
+void op_rol_addr();
+void op_ror_addr();
+void op_trb_addr();
+void op_tsb_addr();
+void op_inc_addrx();
+void op_dec_addrx();
+void op_asl_addrx();
+void op_lsr_addrx();
+void op_rol_addrx();
+void op_ror_addrx();
+void op_inc_dp();
+void op_dec_dp();
+void op_asl_dp();
+void op_lsr_dp();
+void op_rol_dp();
+void op_ror_dp();
+void op_trb_dp();
+void op_tsb_dp();
+void op_inc_dpx();
+void op_dec_dpx();
+void op_asl_dpx();
+void op_lsr_dpx();
+void op_rol_dpx();
+void op_ror_dpx();
+void op_bcc();
+void op_bcs();
+void op_bne();
+void op_beq();
+void op_bpl();
+void op_bmi();
+void op_bvc();
+void op_bvs();
+void op_bra();
+void op_brl();
+void op_jmp_addr();
+void op_jmp_long();
+void op_jmp_iaddr();
+void op_jmp_iaddrx();
+void op_jmp_iladdr();
+void op_jsr_addr();
+void op_jsr_long();
+void op_jsr_iaddrx();
+void op_rti();
+void op_rts();
+void op_rtl();
+void op_nop();
+void op_wdm();
+void op_xba();
+void op_mvn();
+void op_mvp();
+void op_brk();
+void op_cop();
+void op_stp();
+void op_wai();
+void op_xce();
+void op_clc();
+void op_cld();
+void op_cli();
+void op_clv();
+void op_sec();
+void op_sed();
+void op_sei();
+void op_rep();
+void op_sep();
+void op_tax();
+void op_tay();
+void op_txa();
+void op_txy();
+void op_tya();
+void op_tyx();
+void op_tcd();
+void op_tcs();
+void op_tdc();
+void op_tsc();
+void op_tsx();
+void op_txs();
+void op_pha();
+void op_phx();
+void op_phy();
+void op_phd();
+void op_phb();
+void op_phk();
+void op_php();
+void op_pla();
+void op_plx();
+void op_ply();
+void op_pld();
+void op_plb();
+void op_plp();
+void op_pea();
+void op_pei();
+void op_per();
@@ -62,14 +62,14 @@ stp(0xdb) {
 }

 wai(0xcb) {
-1:op_io();
-  event.wai = true;
-2:last_cycle();
-  op_io();
-3:while(event.wai) {
+//last_cycle() will set event.wai to false
+//once an NMI / IRQ edge is reached
+1:event.wai = true;
+  while(event.wai) {
    last_cycle();
    op_io();
  }
+2:op_io();
 }

 xce(0xfb) {
@@ -1,17 +1,14 @@
-//nop
-case 0xea: {
+void sCPU::op_nop() {
  last_cycle();
  op_io();
-} break;
+}

-//wdm
-case 0x42: {
+void sCPU::op_wdm() {
  last_cycle();
  op_readpc();
-} break;
+}

-//xba
-case 0xeb: {
+void sCPU::op_xba() {
  op_io();
  last_cycle();
  op_io();
@@ -20,10 +17,9 @@ case 0xeb: {
  regs.a.l ^= regs.a.h;
  regs.p.n = !!(regs.a.l & 0x80);
  regs.p.z = (regs.a.l == 0);
-} break;
+}

-//mvn
-case 0x54: {
+void sCPU::op_mvn() {
  dp = op_readpc();
  sp = op_readpc();
  regs.db = dp;
@@ -40,10 +36,9 @@ case 0x54: {
  last_cycle();
  op_io();
  if(regs.a.w--)regs.pc.w -= 3;
-} break;
+}

-//mvp
-case 0x44: {
+void sCPU::op_mvp() {
  dp = op_readpc();
  sp = op_readpc();
  regs.db = dp;
@@ -60,10 +55,9 @@ case 0x44: {
  last_cycle();
  op_io();
  if(regs.a.w--)regs.pc.w -= 3;
-} break;
+}

-//brk
-case 0x00: {
+void sCPU::op_brk() {
  op_readpc();
  if(!regs.e)op_writestack(regs.pc.b);
  op_writestack(regs.pc.h);
@@ -76,10 +70,9 @@ case 0x00: {
  last_cycle();
  rd.h = op_readlong((regs.e) ? 0xffff : 0xffe7);
  regs.pc.w = rd.w;
-} break;
+}

-//cop
-case 0x02: {
+void sCPU::op_cop() {
  op_readpc();
  if(!regs.e)op_writestack(regs.pc.b);
  op_writestack(regs.pc.h);
@@ -92,29 +85,26 @@ case 0x02: {
  last_cycle();
  rd.h = op_readlong((regs.e) ? 0xfff5 : 0xffe5);
  regs.pc.w = rd.w;
-} break;
+}

-//stp
-case 0xdb: {
+void sCPU::op_stp() {
  op_io();
  last_cycle();
  while(1) { op_io(); }
-} break;
+}

-//wai
-case 0xcb: {
-  op_io();
+void sCPU::op_wai() {
+  //last_cycle() will set event.wai to false
+//once an NMI / IRQ edge is reached
  event.wai = true;
-  last_cycle();
-  op_io();
  while(event.wai) {
    last_cycle();
    op_io();
  }
-} break;
+  op_io();
+}

-//xce
-case 0xfb: {
+void sCPU::op_xce() {
  last_cycle();
  op_io();
 bool carry = regs.p.c;
@@ -128,59 +118,51 @@ bool carry = regs.p.c;
    regs.x.h = 0x00;
    regs.y.h = 0x00;
  }
-} break;
+}

-//clc
-case 0x18: {
+void sCPU::op_clc() {
  last_cycle();
  op_io();
  regs.p.c = 0;
-} break;
+}

-//cld
-case 0xd8: {
+void sCPU::op_cld() {
  last_cycle();
  op_io();
  regs.p.d = 0;
-} break;
+}

-//cli
-case 0x58: {
+void sCPU::op_cli() {
  last_cycle();
  op_io();
  regs.p.i = 0;
-} break;
+}

-//clv
-case 0xb8: {
+void sCPU::op_clv() {
  last_cycle();
  op_io();
  regs.p.v = 0;
-} break;
+}

-//sec
-case 0x38: {
+void sCPU::op_sec() {
  last_cycle();
  op_io();
  regs.p.c = 1;
-} break;
+}

-//sed
-case 0xf8: {
+void sCPU::op_sed() {
  last_cycle();
  op_io();
  regs.p.d = 1;
-} break;
+}

-//sei
-case 0x78: {
+void sCPU::op_sei() {
  last_cycle();
  op_io();
  regs.p.i = 1;
-} break;
+}

-//rep
-case 0xc2: {
+void sCPU::op_rep() {
  rd.l = op_readpc();
  last_cycle();
  op_io();
@@ -190,10 +172,9 @@ case 0xc2: {
    regs.x.h = 0x00;
    regs.y.h = 0x00;
  }
-} break;
+}

-//sep
-case 0xe2: {
+void sCPU::op_sep() {
  rd.l = op_readpc();
  last_cycle();
  op_io();
@@ -203,10 +184,9 @@ case 0xe2: {
    regs.x.h = 0x00;
    regs.y.h = 0x00;
  }
-} break;
+}

-//tax
-case 0xaa: {
+void sCPU::op_tax() {
  last_cycle();
  op_io();
  if(regs.p.x) {
@@ -218,10 +198,9 @@ case 0xaa: {
    regs.p.n = !!(regs.x.w & 0x8000);
    regs.p.z = (regs.x.w == 0);
  }
-} break;
+}

-//tay
-case 0xa8: {
+void sCPU::op_tay() {
  last_cycle();
  op_io();
  if(regs.p.x) {
@@ -233,10 +212,9 @@ case 0xa8: {
    regs.p.n = !!(regs.y.w & 0x8000);
    regs.p.z = (regs.y.w == 0);
  }
-} break;
+}

-//txa
-case 0x8a: {
+void sCPU::op_txa() {
  last_cycle();
  op_io();
  if(regs.p.m) {
@@ -248,10 +226,9 @@ case 0x8a: {
    regs.p.n = !!(regs.a.w & 0x8000);
    regs.p.z = (regs.a.w == 0);
  }
-} break;
+}

-//txy
-case 0x9b: {
+void sCPU::op_txy() {
  last_cycle();
  op_io();
  if(regs.p.x) {
@@ -263,10 +240,9 @@ case 0x9b: {
    regs.p.n = !!(regs.y.w & 0x8000);
    regs.p.z = (regs.y.w == 0);
  }
-} break;
+}

-//tya
-case 0x98: {
+void sCPU::op_tya() {
  last_cycle();
  op_io();
  if(regs.p.m) {
@@ -278,10 +254,9 @@ case 0x98: {
    regs.p.n = !!(regs.a.w & 0x8000);
    regs.p.z = (regs.a.w == 0);
  }
-} break;
+}

-//tyx
-case 0xbb: {
+void sCPU::op_tyx() {
  last_cycle();
  op_io();
  if(regs.p.x) {
@@ -293,36 +268,32 @@ case 0xbb: {
    regs.p.n = !!(regs.x.w & 0x8000);
    regs.p.z = (regs.x.w == 0);
  }
-} break;
+}

-//tcd
-case 0x5b: {
+void sCPU::op_tcd() {
  last_cycle();
  op_io();
  regs.d.w = regs.a.w;
  regs.p.n = !!(regs.d.w & 0x8000);
  regs.p.z = (regs.d.w == 0);
-} break;
+}

-//tcs
-case 0x1b: {
+void sCPU::op_tcs() {
  last_cycle();
  op_io();
  regs.s.w = regs.a.w;
  if(regs.e)regs.s.h = 0x01;
-} break;
+}

-//tdc
-case 0x7b: {
+void sCPU::op_tdc() {
  last_cycle();
  op_io();
  regs.a.w = regs.d.w;
  regs.p.n = !!(regs.a.w & 0x8000);
  regs.p.z = (regs.a.w == 0);
-} break;
+}

-//tsc
-case 0x3b: {
+void sCPU::op_tsc() {
  last_cycle();
  op_io();
  regs.a.w = regs.s.w;
@@ -333,10 +304,9 @@ case 0x3b: {
    regs.p.n = !!(regs.a.w & 0x8000);
    regs.p.z = (regs.a.w == 0);
  }
-} break;
+}

-//tsx
-case 0xba: {
+void sCPU::op_tsx() {
  last_cycle();
  op_io();
  if(regs.p.x) {
@@ -348,10 +318,9 @@ case 0xba: {
    regs.p.n = !!(regs.x.w & 0x8000);
    regs.p.z = (regs.x.w == 0);
  }
-} break;
+}

-//txs
-case 0x9a: {
+void sCPU::op_txs() {
  last_cycle();
  op_io();
  if(regs.e) {
@@ -359,64 +328,56 @@ case 0x9a: {
  } else {
    regs.s.w = regs.x.w;
  }
-} break;
+}

-//pha
-case 0x48: {
+void sCPU::op_pha() {
  op_io();
  if(!regs.p.m)op_writestack(regs.a.h);
  last_cycle();
  op_writestack(regs.a.l);
-} break;
+}

-//phx
-case 0xda: {
+void sCPU::op_phx() {
  op_io();
  if(!regs.p.x)op_writestack(regs.x.h);
  last_cycle();
  op_writestack(regs.x.l);
-} break;
+}

-//phy
-case 0x5a: {
+void sCPU::op_phy() {
  op_io();
  if(!regs.p.x)op_writestack(regs.y.h);
  last_cycle();
  op_writestack(regs.y.l);
-} break;
+}

-//phd
-case 0x0b: {
+void sCPU::op_phd() {
  op_io();
  op_writestackn(regs.d.h);
  last_cycle();
  op_writestackn(regs.d.l);
  if(regs.e)regs.s.h = 0x01;
-} break;
+}

-//phb
-case 0x8b: {
+void sCPU::op_phb() {
  op_io();
  last_cycle();
  op_writestack(regs.db);
-} break;
+}

-//phk
-case 0x4b: {
+void sCPU::op_phk() {
  op_io();
  last_cycle();
  op_writestack(regs.pc.b);
-} break;
+}

-//php
-case 0x08: {
+void sCPU::op_php() {
  op_io();
  last_cycle();
  op_writestack(regs.p);
-} break;
+}

-//pla
-case 0x68: {
+void sCPU::op_pla() {
  op_io();
  op_io();
  if(regs.p.m)last_cycle();
@@ -424,16 +385,15 @@ case 0x68: {
  if(regs.p.m) {
    regs.p.n = !!(regs.a.l & 0x80);
    regs.p.z = (regs.a.l == 0);
-    break;
+    return;
  }
  last_cycle();
  regs.a.h = op_readstack();
  regs.p.n = !!(regs.a.w & 0x8000);
  regs.p.z = (regs.a.w == 0);
-} break;
+}

-//plx
-case 0xfa: {
+void sCPU::op_plx() {
  op_io();
  op_io();
  if(regs.p.x)last_cycle();
@@ -441,16 +401,15 @@ case 0xfa: {
  if(regs.p.x) {
    regs.p.n = !!(regs.x.l & 0x80);
    regs.p.z = (regs.x.l == 0);
-    break;
+    return;
  }
  last_cycle();
  regs.x.h = op_readstack();
  regs.p.n = !!(regs.x.w & 0x8000);
  regs.p.z = (regs.x.w == 0);
-} break;
+}

-//ply
-case 0x7a: {
+void sCPU::op_ply() {
  op_io();
  op_io();
  if(regs.p.x)last_cycle();
@@ -458,16 +417,15 @@ case 0x7a: {
  if(regs.p.x) {
    regs.p.n = !!(regs.y.l & 0x80);
    regs.p.z = (regs.y.l == 0);
-    break;
+    return;
  }
  last_cycle();
  regs.y.h = op_readstack();
  regs.p.n = !!(regs.y.w & 0x8000);
  regs.p.z = (regs.y.w == 0);
-} break;
+}

-//pld
-case 0x2b: {
+void sCPU::op_pld() {
  op_io();
  op_io();
  regs.d.l = op_readstackn();
@@ -476,20 +434,18 @@ case 0x2b: {
  regs.p.n = !!(regs.d.w & 0x8000);
  regs.p.z = (regs.d.w == 0);
  if(regs.e)regs.s.h = 0x01;
-} break;
+}

-//plb
-case 0xab: {
+void sCPU::op_plb() {
  op_io();
  op_io();
  last_cycle();
  regs.db = op_readstack();
  regs.p.n = !!(regs.db & 0x80);
  regs.p.z = (regs.db == 0);
-} break;
+}

-//plp
-case 0x28: {
+void sCPU::op_plp() {
  op_io();
  op_io();
  last_cycle();
@@ -499,20 +455,18 @@ case 0x28: {
    regs.x.h = 0x00;
    regs.y.h = 0x00;
  }
-} break;
+}

-//pea
-case 0xf4: {
+void sCPU::op_pea() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  op_writestackn(aa.h);
  last_cycle();
  op_writestackn(aa.l);
  if(regs.e)regs.s.h = 0x01;
-} break;
+}

-//pei
-case 0xd4: {
+void sCPU::op_pei() {
  dp = op_readpc();
  op_io_cond2();
  aa.l = op_readdp(dp);
@@ -521,10 +475,9 @@ case 0xd4: {
  last_cycle();
  op_writestackn(aa.l);
  if(regs.e)regs.s.h = 0x01;
-} break;
+}

-//per
-case 0x62: {
+void sCPU::op_per() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  op_io();
@@ -533,5 +486,5 @@ case 0x62: {
  last_cycle();
  op_writestackn(rd.l);
  if(regs.e)regs.s.h = 0x01;
-} break;
+}

@@ -1,171 +1,157 @@
-//bcc
-case 0x90: {
+void sCPU::op_bcc() {
  if(!!regs.p.c)last_cycle();
  rd.l = op_readpc();
  if(!regs.p.c) {
    aa.w = regs.pc.d + (int8)rd.l;
    regs.pc.w = aa.w;
  } else {
-    break;
+    return;
  }
  op_io_cond6(aa.w);
  last_cycle();
  op_io();
-} break;
+}

-//bcs
-case 0xb0: {
+void sCPU::op_bcs() {
  if(!regs.p.c)last_cycle();
  rd.l = op_readpc();
  if(regs.p.c) {
    aa.w = regs.pc.d + (int8)rd.l;
    regs.pc.w = aa.w;
  } else {
-    break;
+    return;
  }
  op_io_cond6(aa.w);
  last_cycle();
  op_io();
-} break;
+}

-//bne
-case 0xd0: {
+void sCPU::op_bne() {
  if(!!regs.p.z)last_cycle();
  rd.l = op_readpc();
  if(!regs.p.z) {
    aa.w = regs.pc.d + (int8)rd.l;
    regs.pc.w = aa.w;
  } else {
-    break;
+    return;
  }
  op_io_cond6(aa.w);
  last_cycle();
  op_io();
-} break;
+}

-//beq
-case 0xf0: {
+void sCPU::op_beq() {
  if(!regs.p.z)last_cycle();
  rd.l = op_readpc();
  if(regs.p.z) {
    aa.w = regs.pc.d + (int8)rd.l;
    regs.pc.w = aa.w;
  } else {
-    break;
+    return;
  }
  op_io_cond6(aa.w);
  last_cycle();
  op_io();
-} break;
+}

-//bpl
-case 0x10: {
+void sCPU::op_bpl() {
  if(!!regs.p.n)last_cycle();
  rd.l = op_readpc();
  if(!regs.p.n) {
    aa.w = regs.pc.d + (int8)rd.l;
    regs.pc.w = aa.w;
  } else {
-    break;
+    return;
  }
  op_io_cond6(aa.w);
  last_cycle();
  op_io();
-} break;
+}

-//bmi
-case 0x30: {
+void sCPU::op_bmi() {
  if(!regs.p.n)last_cycle();
  rd.l = op_readpc();
  if(regs.p.n) {
    aa.w = regs.pc.d + (int8)rd.l;
    regs.pc.w = aa.w;
  } else {
-    break;
+    return;
  }
  op_io_cond6(aa.w);
  last_cycle();
  op_io();
-} break;
+}

-//bvc
-case 0x50: {
+void sCPU::op_bvc() {
  if(!!regs.p.v)last_cycle();
  rd.l = op_readpc();
  if(!regs.p.v) {
    aa.w = regs.pc.d + (int8)rd.l;
    regs.pc.w = aa.w;
  } else {
-    break;
+    return;
  }
  op_io_cond6(aa.w);
  last_cycle();
  op_io();
-} break;
+}

-//bvs
-case 0x70: {
+void sCPU::op_bvs() {
  if(!regs.p.v)last_cycle();
  rd.l = op_readpc();
  if(regs.p.v) {
    aa.w = regs.pc.d + (int8)rd.l;
    regs.pc.w = aa.w;
  } else {
-    break;
+    return;
  }
  op_io_cond6(aa.w);
  last_cycle();
  op_io();
-} break;
+}

-//bra
-case 0x80: {
+void sCPU::op_bra() {
  rd.l = op_readpc();
  aa.w = regs.pc.d + (int8)rd.l;
  regs.pc.w = aa.w;
  op_io_cond6(aa.w);
  last_cycle();
  op_io();
-} break;
+}

-//brl
-case 0x82: {
+void sCPU::op_brl() {
  rd.l = op_readpc();
  rd.h = op_readpc();
  last_cycle();
  op_io();
  regs.pc.w = regs.pc.d + (int16)rd.w;
-} break;
+}

-//jmp_addr
-case 0x4c: {
+void sCPU::op_jmp_addr() {
  rd.l = op_readpc();
  last_cycle();
  rd.h = op_readpc();
  regs.pc.w = rd.w;
-} break;
+}

-//jmp_long
-case 0x5c: {
+void sCPU::op_jmp_long() {
  rd.l = op_readpc();
  rd.h = op_readpc();
  last_cycle();
  rd.b = op_readpc();
  regs.pc.d = rd.d & 0xffffff;
-} break;
+}

-//jmp_iaddr
-case 0x6c: {
+void sCPU::op_jmp_iaddr() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  rd.l = op_readaddr(aa.w);
  last_cycle();
  rd.h = op_readaddr(aa.w + 1);
  regs.pc.w = rd.w;
-} break;
+}

-//jmp_iaddrx
-case 0x7c: {
+void sCPU::op_jmp_iaddrx() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  op_io();
@@ -173,10 +159,9 @@ case 0x7c: {
  last_cycle();
  rd.h = op_readpbr(aa.w + regs.x.w + 1);
  regs.pc.w = rd.w;
-} break;
+}

-//jmp_iladdr
-case 0xdc: {
+void sCPU::op_jmp_iladdr() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  rd.l = op_readaddr(aa.w);
@@ -184,10 +169,9 @@ case 0xdc: {
  last_cycle();
  rd.b = op_readaddr(aa.w + 2);
  regs.pc.d = rd.d & 0xffffff;
-} break;
+}

-//jsr_addr
-case 0x20: {
+void sCPU::op_jsr_addr() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  op_io();
@@ -196,10 +180,9 @@ case 0x20: {
  last_cycle();
  op_writestack(regs.pc.l);
  regs.pc.w = aa.w;
-} break;
+}

-//jsr_long
-case 0x22: {
+void sCPU::op_jsr_long() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  op_writestackn(regs.pc.b);
@@ -211,10 +194,9 @@ case 0x22: {
  op_writestackn(regs.pc.l);
  regs.pc.d = aa.d & 0xffffff;
  if(regs.e)regs.s.h = 0x01;
-} break;
+}

-//jsr_iaddrx
-case 0xfc: {
+void sCPU::op_jsr_iaddrx() {
  aa.l = op_readpc();
  op_writestackn(regs.pc.h);
  op_writestackn(regs.pc.l);
@@ -225,10 +207,9 @@ case 0xfc: {
  rd.h = op_readpbr(aa.w + regs.x.w + 1);
  regs.pc.w = rd.w;
  if(regs.e)regs.s.h = 0x01;
-} break;
+}

-//rti
-case 0x40: {
+void sCPU::op_rti() {
  op_io();
  op_io();
  regs.p = op_readstack();
@@ -242,15 +223,14 @@ case 0x40: {
  rd.h = op_readstack();
  if(regs.e) {
    regs.pc.w = rd.w;
-    break;
+    return;
  }
  last_cycle();
  rd.b = op_readstack();
  regs.pc.d = rd.d & 0xffffff;
-} break;
+}

-//rts
-case 0x60: {
+void sCPU::op_rts() {
  op_io();
  op_io();
  rd.l = op_readstack();
@@ -259,10 +239,9 @@ case 0x60: {
  op_io();
  regs.pc.w = rd.w;
  regs.pc.w++;
-} break;
+}

-//rtl
-case 0x6b: {
+void sCPU::op_rtl() {
  op_io();
  op_io();
  rd.l = op_readstackn();
@@ -272,5 +251,5 @@ case 0x6b: {
  regs.pc.d = rd.d & 0xffffff;
  regs.pc.w++;
  if(regs.e)regs.s.h = 0x01;
-} break;
+}

@@ -1,5 +1,4 @@
-//inc
-case 0x1a: {
+void sCPU::op_inc() {
  last_cycle();
  op_io();
  if(regs.p.m) {
@@ -11,10 +10,9 @@ case 0x1a: {
    regs.p.n = !!(regs.a.w & 0x8000);
    regs.p.z = (regs.a.w == 0);
  }
-} break;
+}

-//inx
-case 0xe8: {
+void sCPU::op_inx() {
  last_cycle();
  op_io();
  if(regs.p.x) {
@@ -26,10 +24,9 @@ case 0xe8: {
    regs.p.n = !!(regs.x.w & 0x8000);
    regs.p.z = (regs.x.w == 0);
  }
-} break;
+}

-//iny
-case 0xc8: {
+void sCPU::op_iny() {
  last_cycle();
  op_io();
  if(regs.p.x) {
@@ -41,10 +38,9 @@ case 0xc8: {
    regs.p.n = !!(regs.y.w & 0x8000);
    regs.p.z = (regs.y.w == 0);
  }
-} break;
+}

-//dec
-case 0x3a: {
+void sCPU::op_dec() {
  last_cycle();
  op_io();
  if(regs.p.m) {
@@ -56,10 +52,9 @@ case 0x3a: {
    regs.p.n = !!(regs.a.w & 0x8000);
    regs.p.z = (regs.a.w == 0);
  }
-} break;
+}

-//dex
-case 0xca: {
+void sCPU::op_dex() {
  last_cycle();
  op_io();
  if(regs.p.x) {
@@ -71,10 +66,9 @@ case 0xca: {
    regs.p.n = !!(regs.x.w & 0x8000);
    regs.p.z = (regs.x.w == 0);
  }
-} break;
+}

-//dey
-case 0x88: {
+void sCPU::op_dey() {
  last_cycle();
  op_io();
  if(regs.p.x) {
@@ -86,10 +80,9 @@ case 0x88: {
    regs.p.n = !!(regs.y.w & 0x8000);
    regs.p.z = (regs.y.w == 0);
  }
-} break;
+}

-//asl
-case 0x0a: {
+void sCPU::op_asl() {
  last_cycle();
  op_io();
  if(regs.p.m) {
@@ -103,10 +96,9 @@ case 0x0a: {
    regs.p.n = !!(regs.a.w & 0x8000);
    regs.p.z = (regs.a.w == 0);
  }
-} break;
+}

-//lsr
-case 0x4a: {
+void sCPU::op_lsr() {
  last_cycle();
  op_io();
  if(regs.p.m) {
@@ -120,10 +112,9 @@ case 0x4a: {
    regs.p.n = !!(regs.a.w & 0x8000);
    regs.p.z = (regs.a.w == 0);
  }
-} break;
+}

-//rol
-case 0x2a: {
+void sCPU::op_rol() {
  last_cycle();
  op_io();
  uint16 c = regs.p.c;
@@ -140,10 +131,9 @@ case 0x2a: {
    regs.p.n = !!(regs.a.w & 0x8000);
    regs.p.z = (regs.a.w == 0);
  }
-} break;
+}

-//ror
-case 0x6a: {
+void sCPU::op_ror() {
  last_cycle();
  op_io();
  uint16 c;
@@ -162,10 +152,9 @@ case 0x6a: {
    regs.p.n = !!(regs.a.w & 0x8000);
    regs.p.z = (regs.a.w == 0);
  }
-} break;
+}

-//inc_addr
-case 0xee: {
+void sCPU::op_inc_addr() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  rd.l = op_readdbr(aa.w);
@@ -176,10 +165,9 @@ case 0xee: {
  op_writedbr(aa.w + 1, rd.h); }
  last_cycle();
  op_writedbr(aa.w,     rd.l);
-} break;
+}

-//dec_addr
-case 0xce: {
+void sCPU::op_dec_addr() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  rd.l = op_readdbr(aa.w);
@@ -190,10 +178,9 @@ case 0xce: {
  op_writedbr(aa.w + 1, rd.h); }
  last_cycle();
  op_writedbr(aa.w,     rd.l);
-} break;
+}

-//asl_addr
-case 0x0e: {
+void sCPU::op_asl_addr() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  rd.l = op_readdbr(aa.w);
@@ -204,10 +191,9 @@ case 0x0e: {
  op_writedbr(aa.w + 1, rd.h); }
  last_cycle();
  op_writedbr(aa.w,     rd.l);
-} break;
+}

-//lsr_addr
-case 0x4e: {
+void sCPU::op_lsr_addr() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  rd.l = op_readdbr(aa.w);
@@ -218,10 +204,9 @@ case 0x4e: {
  op_writedbr(aa.w + 1, rd.h); }
  last_cycle();
  op_writedbr(aa.w,     rd.l);
-} break;
+}

-//rol_addr
-case 0x2e: {
+void sCPU::op_rol_addr() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  rd.l = op_readdbr(aa.w);
@@ -232,10 +217,9 @@ case 0x2e: {
  op_writedbr(aa.w + 1, rd.h); }
  last_cycle();
  op_writedbr(aa.w,     rd.l);
-} break;
+}

-//ror_addr
-case 0x6e: {
+void sCPU::op_ror_addr() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  rd.l = op_readdbr(aa.w);
@@ -246,10 +230,9 @@ case 0x6e: {
  op_writedbr(aa.w + 1, rd.h); }
  last_cycle();
  op_writedbr(aa.w,     rd.l);
-} break;
+}

-//trb_addr
-case 0x1c: {
+void sCPU::op_trb_addr() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  rd.l = op_readdbr(aa.w);
@@ -260,10 +243,9 @@ case 0x1c: {
  op_writedbr(aa.w + 1, rd.h); }
  last_cycle();
  op_writedbr(aa.w,     rd.l);
-} break;
+}

-//tsb_addr
-case 0x0c: {
+void sCPU::op_tsb_addr() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  rd.l = op_readdbr(aa.w);
@@ -274,10 +256,9 @@ case 0x0c: {
  op_writedbr(aa.w + 1, rd.h); }
  last_cycle();
  op_writedbr(aa.w,     rd.l);
-} break;
+}

-//inc_addrx
-case 0xfe: {
+void sCPU::op_inc_addrx() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  op_io();
@@ -289,10 +270,9 @@ case 0xfe: {
  op_writedbr(aa.w + regs.x.w + 1, rd.h); }
  last_cycle();
  op_writedbr(aa.w + regs.x.w,     rd.l);
-} break;
+}

-//dec_addrx
-case 0xde: {
+void sCPU::op_dec_addrx() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  op_io();
@@ -304,10 +284,9 @@ case 0xde: {
  op_writedbr(aa.w + regs.x.w + 1, rd.h); }
  last_cycle();
  op_writedbr(aa.w + regs.x.w,     rd.l);
-} break;
+}

-//asl_addrx
-case 0x1e: {
+void sCPU::op_asl_addrx() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  op_io();
@@ -319,10 +298,9 @@ case 0x1e: {
  op_writedbr(aa.w + regs.x.w + 1, rd.h); }
  last_cycle();
  op_writedbr(aa.w + regs.x.w,     rd.l);
-} break;
+}

-//lsr_addrx
-case 0x5e: {
+void sCPU::op_lsr_addrx() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  op_io();
@@ -334,10 +312,9 @@ case 0x5e: {
  op_writedbr(aa.w + regs.x.w + 1, rd.h); }
  last_cycle();
  op_writedbr(aa.w + regs.x.w,     rd.l);
-} break;
+}

-//rol_addrx
-case 0x3e: {
+void sCPU::op_rol_addrx() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  op_io();
@@ -349,10 +326,9 @@ case 0x3e: {
  op_writedbr(aa.w + regs.x.w + 1, rd.h); }
  last_cycle();
  op_writedbr(aa.w + regs.x.w,     rd.l);
-} break;
+}

-//ror_addrx
-case 0x7e: {
+void sCPU::op_ror_addrx() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  op_io();
@@ -364,10 +340,9 @@ case 0x7e: {
  op_writedbr(aa.w + regs.x.w + 1, rd.h); }
  last_cycle();
  op_writedbr(aa.w + regs.x.w,     rd.l);
-} break;
+}

-//inc_dp
-case 0xe6: {
+void sCPU::op_inc_dp() {
  dp = op_readpc();
  op_io_cond2();
  rd.l = op_readdp(dp);
@@ -378,10 +353,9 @@ case 0xe6: {
  op_writedp(dp + 1, rd.h); }
  last_cycle();
  op_writedp(dp,     rd.l);
-} break;
+}

-//dec_dp
-case 0xc6: {
+void sCPU::op_dec_dp() {
  dp = op_readpc();
  op_io_cond2();
  rd.l = op_readdp(dp);
@@ -392,10 +366,9 @@ case 0xc6: {
  op_writedp(dp + 1, rd.h); }
  last_cycle();
  op_writedp(dp,     rd.l);
-} break;
+}

-//asl_dp
-case 0x06: {
+void sCPU::op_asl_dp() {
  dp = op_readpc();
  op_io_cond2();
  rd.l = op_readdp(dp);
@@ -406,10 +379,9 @@ case 0x06: {
  op_writedp(dp + 1, rd.h); }
  last_cycle();
  op_writedp(dp,     rd.l);
-} break;
+}

-//lsr_dp
-case 0x46: {
+void sCPU::op_lsr_dp() {
  dp = op_readpc();
  op_io_cond2();
  rd.l = op_readdp(dp);
@@ -420,10 +392,9 @@ case 0x46: {
  op_writedp(dp + 1, rd.h); }
  last_cycle();
  op_writedp(dp,     rd.l);
-} break;
+}

-//rol_dp
-case 0x26: {
+void sCPU::op_rol_dp() {
  dp = op_readpc();
  op_io_cond2();
  rd.l = op_readdp(dp);
@@ -434,10 +405,9 @@ case 0x26: {
  op_writedp(dp + 1, rd.h); }
  last_cycle();
  op_writedp(dp,     rd.l);
-} break;
+}

-//ror_dp
-case 0x66: {
+void sCPU::op_ror_dp() {
  dp = op_readpc();
  op_io_cond2();
  rd.l = op_readdp(dp);
@@ -448,10 +418,9 @@ case 0x66: {
  op_writedp(dp + 1, rd.h); }
  last_cycle();
  op_writedp(dp,     rd.l);
-} break;
+}

-//trb_dp
-case 0x14: {
+void sCPU::op_trb_dp() {
  dp = op_readpc();
  op_io_cond2();
  rd.l = op_readdp(dp);
@@ -462,10 +431,9 @@ case 0x14: {
  op_writedp(dp + 1, rd.h); }
  last_cycle();
  op_writedp(dp,     rd.l);
-} break;
+}

-//tsb_dp
-case 0x04: {
+void sCPU::op_tsb_dp() {
  dp = op_readpc();
  op_io_cond2();
  rd.l = op_readdp(dp);
@@ -476,10 +444,9 @@ case 0x04: {
  op_writedp(dp + 1, rd.h); }
  last_cycle();
  op_writedp(dp,     rd.l);
-} break;
+}

-//inc_dpx
-case 0xf6: {
+void sCPU::op_inc_dpx() {
  dp = op_readpc();
  op_io_cond2();
  op_io();
@@ -491,10 +458,9 @@ case 0xf6: {
  op_writedp(dp + regs.x.w + 1, rd.h); }
  last_cycle();
  op_writedp(dp + regs.x.w,     rd.l);
-} break;
+}

-//dec_dpx
-case 0xd6: {
+void sCPU::op_dec_dpx() {
  dp = op_readpc();
  op_io_cond2();
  op_io();
@@ -506,10 +472,9 @@ case 0xd6: {
  op_writedp(dp + regs.x.w + 1, rd.h); }
  last_cycle();
  op_writedp(dp + regs.x.w,     rd.l);
-} break;
+}

-//asl_dpx
-case 0x16: {
+void sCPU::op_asl_dpx() {
  dp = op_readpc();
  op_io_cond2();
  op_io();
@@ -521,10 +486,9 @@ case 0x16: {
  op_writedp(dp + regs.x.w + 1, rd.h); }
  last_cycle();
  op_writedp(dp + regs.x.w,     rd.l);
-} break;
+}

-//lsr_dpx
-case 0x56: {
+void sCPU::op_lsr_dpx() {
  dp = op_readpc();
  op_io_cond2();
  op_io();
@@ -536,10 +500,9 @@ case 0x56: {
  op_writedp(dp + regs.x.w + 1, rd.h); }
  last_cycle();
  op_writedp(dp + regs.x.w,     rd.l);
-} break;
+}

-//rol_dpx
-case 0x36: {
+void sCPU::op_rol_dpx() {
  dp = op_readpc();
  op_io_cond2();
  op_io();
@@ -551,10 +514,9 @@ case 0x36: {
  op_writedp(dp + regs.x.w + 1, rd.h); }
  last_cycle();
  op_writedp(dp + regs.x.w,     rd.l);
-} break;
+}

-//ror_dpx
-case 0x76: {
+void sCPU::op_ror_dpx() {
  dp = op_readpc();
  op_io_cond2();
  op_io();
@@ -566,5 +528,5 @@ case 0x76: {
  op_writedp(dp + regs.x.w + 1, rd.h); }
  last_cycle();
  op_writedp(dp + regs.x.w,     rd.l);
-} break;
+}

@@ -1,214 +1,195 @@
-//sta_addr
-case 0x8d: {
+void sCPU::op_sta_addr() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  if(regs.p.m)last_cycle();
  op_writedbr(aa.w,     regs.a.w);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writedbr(aa.w + 1, regs.a.w >> 8);
-} break;
+}

-//stx_addr
-case 0x8e: {
+void sCPU::op_stx_addr() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  if(regs.p.x)last_cycle();
  op_writedbr(aa.w,     regs.x.w);
-  if(regs.p.x)break;
+  if(regs.p.x)return;
  last_cycle();
  op_writedbr(aa.w + 1, regs.x.w >> 8);
-} break;
+}

-//sty_addr
-case 0x8c: {
+void sCPU::op_sty_addr() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  if(regs.p.x)last_cycle();
  op_writedbr(aa.w,     regs.y.w);
-  if(regs.p.x)break;
+  if(regs.p.x)return;
  last_cycle();
  op_writedbr(aa.w + 1, regs.y.w >> 8);
-} break;
+}

-//stz_addr
-case 0x9c: {
+void sCPU::op_stz_addr() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  if(regs.p.m)last_cycle();
  op_writedbr(aa.w,     0x0000);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writedbr(aa.w + 1, 0x0000 >> 8);
-} break;
+}

-//sta_addrx
-case 0x9d: {
+void sCPU::op_sta_addrx() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  op_io();
  if(regs.p.m)last_cycle();
  op_writedbr(aa.w + regs.x.w,     regs.a.w);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writedbr(aa.w + regs.x.w + 1, regs.a.w >> 8);
-} break;
+}

-//stz_addrx
-case 0x9e: {
+void sCPU::op_stz_addrx() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  op_io();
  if(regs.p.m)last_cycle();
  op_writedbr(aa.w + regs.x.w,     0x0000);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writedbr(aa.w + regs.x.w + 1, 0x0000 >> 8);
-} break;
+}

-//sta_addry
-case 0x99: {
+void sCPU::op_sta_addry() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  op_io();
  if(regs.p.m)last_cycle();
  op_writedbr(aa.w + regs.y.w,     regs.a.l);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writedbr(aa.w + regs.y.w + 1, regs.a.h);
-} break;
+}

-//sta_long
-case 0x8f: {
+void sCPU::op_sta_long() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  aa.b = op_readpc();
  if(regs.p.m)last_cycle();
  op_writelong(aa.d,     regs.a.l);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writelong(aa.d + 1, regs.a.h);
-} break;
+}

-//sta_longx
-case 0x9f: {
+void sCPU::op_sta_longx() {
  aa.l = op_readpc();
  aa.h = op_readpc();
  aa.b = op_readpc();
  if(regs.p.m)last_cycle();
  op_writelong(aa.d + regs.x.w,     regs.a.l);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writelong(aa.d + regs.x.w + 1, regs.a.h);
-} break;
+}

-//sta_dp
-case 0x85: {
+void sCPU::op_sta_dp() {
  dp = op_readpc();
  op_io_cond2();
  if(regs.p.m)last_cycle();
  op_writedp(dp,     regs.a.w);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writedp(dp + 1, regs.a.w >> 8);
-} break;
+}

-//stx_dp
-case 0x86: {
+void sCPU::op_stx_dp() {
  dp = op_readpc();
  op_io_cond2();
  if(regs.p.x)last_cycle();
  op_writedp(dp,     regs.x.w);
-  if(regs.p.x)break;
+  if(regs.p.x)return;
  last_cycle();
  op_writedp(dp + 1, regs.x.w >> 8);
-} break;
+}

-//sty_dp
-case 0x84: {
+void sCPU::op_sty_dp() {
  dp = op_readpc();
  op_io_cond2();
  if(regs.p.x)last_cycle();
  op_writedp(dp,     regs.y.w);
-  if(regs.p.x)break;
+  if(regs.p.x)return;
  last_cycle();
  op_writedp(dp + 1, regs.y.w >> 8);
-} break;
+}

-//stz_dp
-case 0x64: {
+void sCPU::op_stz_dp() {
  dp = op_readpc();
  op_io_cond2();
  if(regs.p.m)last_cycle();
  op_writedp(dp,     0x0000);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writedp(dp + 1, 0x0000 >> 8);
-} break;
+}

-//sta_dpx
-case 0x95: {
+void sCPU::op_sta_dpx() {
  dp = op_readpc();
  op_io_cond2();
  op_io();
  if(regs.p.m)last_cycle();
  op_writedp(dp + regs.x.w,     regs.a.w);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writedp(dp + regs.x.w + 1, regs.a.w >> 8);
-} break;
+}

-//sty_dpx
-case 0x94: {
+void sCPU::op_sty_dpx() {
  dp = op_readpc();
  op_io_cond2();
  op_io();
  if(regs.p.x)last_cycle();
  op_writedp(dp + regs.x.w,     regs.y.w);
-  if(regs.p.x)break;
+  if(regs.p.x)return;
  last_cycle();
  op_writedp(dp + regs.x.w + 1, regs.y.w >> 8);
-} break;
+}

-//stz_dpx
-case 0x74: {
+void sCPU::op_stz_dpx() {
  dp = op_readpc();
  op_io_cond2();
  op_io();
  if(regs.p.m)last_cycle();
  op_writedp(dp + regs.x.w,     0x0000);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writedp(dp + regs.x.w + 1, 0x0000 >> 8);
-} break;
+}

-//stx_dpy
-case 0x96: {
+void sCPU::op_stx_dpy() {
  dp = op_readpc();
  op_io_cond2();
  op_io();
  if(regs.p.x)last_cycle();
  op_writedp(dp + regs.y.w,     regs.x.l);
-  if(regs.p.x)break;
+  if(regs.p.x)return;
  last_cycle();
  op_writedp(dp + regs.y.w + 1, regs.x.h);
-} break;
+}

-//sta_idp
-case 0x92: {
+void sCPU::op_sta_idp() {
  dp = op_readpc();
  op_io_cond2();
  aa.l = op_readdp(dp);
  aa.h = op_readdp(dp + 1);
  if(regs.p.m)last_cycle();
  op_writedbr(aa.w,     regs.a.l);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writedbr(aa.w + 1, regs.a.h);
-} break;
+}

-//sta_ildp
-case 0x87: {
+void sCPU::op_sta_ildp() {
  dp = op_readpc();
  op_io_cond2();
  aa.l = op_readdp(dp);
@@ -216,13 +197,12 @@ case 0x87: {
  aa.b = op_readdp(dp + 2);
  if(regs.p.m)last_cycle();
  op_writelong(aa.d,     regs.a.l);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writelong(aa.d + 1, regs.a.h);
-} break;
+}

-//sta_idpx
-case 0x81: {
+void sCPU::op_sta_idpx() {
  dp = op_readpc();
  op_io_cond2();
  op_io();
@@ -230,13 +210,12 @@ case 0x81: {
  aa.h = op_readdp(dp + regs.x.w + 1);
  if(regs.p.m)last_cycle();
  op_writedbr(aa.w,     regs.a.l);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writedbr(aa.w + 1, regs.a.h);
-} break;
+}

-//sta_idpy
-case 0x91: {
+void sCPU::op_sta_idpy() {
  dp = op_readpc();
  op_io_cond2();
  aa.l = op_readdp(dp);
@@ -244,13 +223,12 @@ case 0x91: {
  op_io();
  if(regs.p.m)last_cycle();
  op_writedbr(aa.w + regs.y.w,     regs.a.l);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writedbr(aa.w + regs.y.w + 1, regs.a.h);
-} break;
+}

-//sta_ildpy
-case 0x97: {
+void sCPU::op_sta_ildpy() {
  dp = op_readpc();
  op_io_cond2();
  aa.l = op_readdp(dp);
@@ -258,24 +236,22 @@ case 0x97: {
  aa.b = op_readdp(dp + 2);
  if(regs.p.m)last_cycle();
  op_writelong(aa.d + regs.y.w,     regs.a.l);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writelong(aa.d + regs.y.w + 1, regs.a.h);
-} break;
+}

-//sta_sr
-case 0x83: {
+void sCPU::op_sta_sr() {
  sp = op_readpc();
  op_io();
  if(regs.p.m)last_cycle();
  op_writesp(sp,     regs.a.l);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writesp(sp + 1, regs.a.h);
-} break;
+}

-//sta_isry
-case 0x93: {
+void sCPU::op_sta_isry() {
  sp = op_readpc();
  op_io();
  aa.l = op_readsp(sp);
@@ -283,8 +259,8 @@ case 0x93: {
  op_io();
  if(regs.p.m)last_cycle();
  op_writedbr(aa.w + regs.y.w,     regs.a.l);
-  if(regs.p.m)break;
+  if(regs.p.m)return;
  last_cycle();
  op_writedbr(aa.w + regs.y.w + 1, regs.a.h);
-} break;
+}

@@ -0,0 +1,256 @@
+optbl[0x69] = &sCPU::op_adc_const;
+optbl[0x29] = &sCPU::op_and_const;
+optbl[0xc9] = &sCPU::op_cmp_const;
+optbl[0xe0] = &sCPU::op_cpx_const;
+optbl[0xc0] = &sCPU::op_cpy_const;
+optbl[0x49] = &sCPU::op_eor_const;
+optbl[0xa9] = &sCPU::op_lda_const;
+optbl[0xa2] = &sCPU::op_ldx_const;
+optbl[0xa0] = &sCPU::op_ldy_const;
+optbl[0x09] = &sCPU::op_ora_const;
+optbl[0xe9] = &sCPU::op_sbc_const;
+optbl[0x6d] = &sCPU::op_adc_addr;
+optbl[0x2d] = &sCPU::op_and_addr;
+optbl[0x2c] = &sCPU::op_bit_addr;
+optbl[0xcd] = &sCPU::op_cmp_addr;
+optbl[0xec] = &sCPU::op_cpx_addr;
+optbl[0xcc] = &sCPU::op_cpy_addr;
+optbl[0x4d] = &sCPU::op_eor_addr;
+optbl[0xad] = &sCPU::op_lda_addr;
+optbl[0xae] = &sCPU::op_ldx_addr;
+optbl[0xac] = &sCPU::op_ldy_addr;
+optbl[0x0d] = &sCPU::op_ora_addr;
+optbl[0xed] = &sCPU::op_sbc_addr;
+optbl[0x7d] = &sCPU::op_adc_addrx;
+optbl[0x3d] = &sCPU::op_and_addrx;
+optbl[0x3c] = &sCPU::op_bit_addrx;
+optbl[0xdd] = &sCPU::op_cmp_addrx;
+optbl[0x5d] = &sCPU::op_eor_addrx;
+optbl[0xbd] = &sCPU::op_lda_addrx;
+optbl[0xbc] = &sCPU::op_ldy_addrx;
+optbl[0x1d] = &sCPU::op_ora_addrx;
+optbl[0xfd] = &sCPU::op_sbc_addrx;
+optbl[0x79] = &sCPU::op_adc_addry;
+optbl[0x39] = &sCPU::op_and_addry;
+optbl[0xd9] = &sCPU::op_cmp_addry;
+optbl[0x59] = &sCPU::op_eor_addry;
+optbl[0xb9] = &sCPU::op_lda_addry;
+optbl[0xbe] = &sCPU::op_ldx_addry;
+optbl[0x19] = &sCPU::op_ora_addry;
+optbl[0xf9] = &sCPU::op_sbc_addry;
+optbl[0x6f] = &sCPU::op_adc_long;
+optbl[0x2f] = &sCPU::op_and_long;
+optbl[0xcf] = &sCPU::op_cmp_long;
+optbl[0x4f] = &sCPU::op_eor_long;
+optbl[0xaf] = &sCPU::op_lda_long;
+optbl[0x0f] = &sCPU::op_ora_long;
+optbl[0xef] = &sCPU::op_sbc_long;
+optbl[0x7f] = &sCPU::op_adc_longx;
+optbl[0x3f] = &sCPU::op_and_longx;
+optbl[0xdf] = &sCPU::op_cmp_longx;
+optbl[0x5f] = &sCPU::op_eor_longx;
+optbl[0xbf] = &sCPU::op_lda_longx;
+optbl[0x1f] = &sCPU::op_ora_longx;
+optbl[0xff] = &sCPU::op_sbc_longx;
+optbl[0x65] = &sCPU::op_adc_dp;
+optbl[0x25] = &sCPU::op_and_dp;
+optbl[0x24] = &sCPU::op_bit_dp;
+optbl[0xc5] = &sCPU::op_cmp_dp;
+optbl[0xe4] = &sCPU::op_cpx_dp;
+optbl[0xc4] = &sCPU::op_cpy_dp;
+optbl[0x45] = &sCPU::op_eor_dp;
+optbl[0xa5] = &sCPU::op_lda_dp;
+optbl[0xa6] = &sCPU::op_ldx_dp;
+optbl[0xa4] = &sCPU::op_ldy_dp;
+optbl[0x05] = &sCPU::op_ora_dp;
+optbl[0xe5] = &sCPU::op_sbc_dp;
+optbl[0x75] = &sCPU::op_adc_dpx;
+optbl[0x35] = &sCPU::op_and_dpx;
+optbl[0x34] = &sCPU::op_bit_dpx;
+optbl[0xd5] = &sCPU::op_cmp_dpx;
+optbl[0x55] = &sCPU::op_eor_dpx;
+optbl[0xb5] = &sCPU::op_lda_dpx;
+optbl[0xb4] = &sCPU::op_ldy_dpx;
+optbl[0x15] = &sCPU::op_ora_dpx;
+optbl[0xf5] = &sCPU::op_sbc_dpx;
+optbl[0xb6] = &sCPU::op_ldx_dpy;
+optbl[0x72] = &sCPU::op_adc_idp;
+optbl[0x32] = &sCPU::op_and_idp;
+optbl[0xd2] = &sCPU::op_cmp_idp;
+optbl[0x52] = &sCPU::op_eor_idp;
+optbl[0xb2] = &sCPU::op_lda_idp;
+optbl[0x12] = &sCPU::op_ora_idp;
+optbl[0xf2] = &sCPU::op_sbc_idp;
+optbl[0x61] = &sCPU::op_adc_idpx;
+optbl[0x21] = &sCPU::op_and_idpx;
+optbl[0xc1] = &sCPU::op_cmp_idpx;
+optbl[0x41] = &sCPU::op_eor_idpx;
+optbl[0xa1] = &sCPU::op_lda_idpx;
+optbl[0x01] = &sCPU::op_ora_idpx;
+optbl[0xe1] = &sCPU::op_sbc_idpx;
+optbl[0x71] = &sCPU::op_adc_idpy;
+optbl[0x31] = &sCPU::op_and_idpy;
+optbl[0xd1] = &sCPU::op_cmp_idpy;
+optbl[0x51] = &sCPU::op_eor_idpy;
+optbl[0xb1] = &sCPU::op_lda_idpy;
+optbl[0x11] = &sCPU::op_ora_idpy;
+optbl[0xf1] = &sCPU::op_sbc_idpy;
+optbl[0x67] = &sCPU::op_adc_ildp;
+optbl[0x27] = &sCPU::op_and_ildp;
+optbl[0xc7] = &sCPU::op_cmp_ildp;
+optbl[0x47] = &sCPU::op_eor_ildp;
+optbl[0xa7] = &sCPU::op_lda_ildp;
+optbl[0x07] = &sCPU::op_ora_ildp;
+optbl[0xe7] = &sCPU::op_sbc_ildp;
+optbl[0x77] = &sCPU::op_adc_ildpy;
+optbl[0x37] = &sCPU::op_and_ildpy;
+optbl[0xd7] = &sCPU::op_cmp_ildpy;
+optbl[0x57] = &sCPU::op_eor_ildpy;
+optbl[0xb7] = &sCPU::op_lda_ildpy;
+optbl[0x17] = &sCPU::op_ora_ildpy;
+optbl[0xf7] = &sCPU::op_sbc_ildpy;
+optbl[0x63] = &sCPU::op_adc_sr;
+optbl[0x23] = &sCPU::op_and_sr;
+optbl[0xc3] = &sCPU::op_cmp_sr;
+optbl[0x43] = &sCPU::op_eor_sr;
+optbl[0xa3] = &sCPU::op_lda_sr;
+optbl[0x03] = &sCPU::op_ora_sr;
+optbl[0xe3] = &sCPU::op_sbc_sr;
+optbl[0x73] = &sCPU::op_adc_isry;
+optbl[0x33] = &sCPU::op_and_isry;
+optbl[0xd3] = &sCPU::op_cmp_isry;
+optbl[0x53] = &sCPU::op_eor_isry;
+optbl[0xb3] = &sCPU::op_lda_isry;
+optbl[0x13] = &sCPU::op_ora_isry;
+optbl[0xf3] = &sCPU::op_sbc_isry;
+optbl[0x89] = &sCPU::op_bit_const;
+optbl[0x8d] = &sCPU::op_sta_addr;
+optbl[0x8e] = &sCPU::op_stx_addr;
+optbl[0x8c] = &sCPU::op_sty_addr;
+optbl[0x9c] = &sCPU::op_stz_addr;
+optbl[0x9d] = &sCPU::op_sta_addrx;
+optbl[0x9e] = &sCPU::op_stz_addrx;
+optbl[0x99] = &sCPU::op_sta_addry;
+optbl[0x8f] = &sCPU::op_sta_long;
+optbl[0x9f] = &sCPU::op_sta_longx;
+optbl[0x85] = &sCPU::op_sta_dp;
+optbl[0x86] = &sCPU::op_stx_dp;
+optbl[0x84] = &sCPU::op_sty_dp;
+optbl[0x64] = &sCPU::op_stz_dp;
+optbl[0x95] = &sCPU::op_sta_dpx;
+optbl[0x94] = &sCPU::op_sty_dpx;
+optbl[0x74] = &sCPU::op_stz_dpx;
+optbl[0x96] = &sCPU::op_stx_dpy;
+optbl[0x92] = &sCPU::op_sta_idp;
+optbl[0x87] = &sCPU::op_sta_ildp;
+optbl[0x81] = &sCPU::op_sta_idpx;
+optbl[0x91] = &sCPU::op_sta_idpy;
+optbl[0x97] = &sCPU::op_sta_ildpy;
+optbl[0x83] = &sCPU::op_sta_sr;
+optbl[0x93] = &sCPU::op_sta_isry;
+optbl[0x1a] = &sCPU::op_inc;
+optbl[0xe8] = &sCPU::op_inx;
+optbl[0xc8] = &sCPU::op_iny;
+optbl[0x3a] = &sCPU::op_dec;
+optbl[0xca] = &sCPU::op_dex;
+optbl[0x88] = &sCPU::op_dey;
+optbl[0x0a] = &sCPU::op_asl;
+optbl[0x4a] = &sCPU::op_lsr;
+optbl[0x2a] = &sCPU::op_rol;
+optbl[0x6a] = &sCPU::op_ror;
+optbl[0xee] = &sCPU::op_inc_addr;
+optbl[0xce] = &sCPU::op_dec_addr;
+optbl[0x0e] = &sCPU::op_asl_addr;
+optbl[0x4e] = &sCPU::op_lsr_addr;
+optbl[0x2e] = &sCPU::op_rol_addr;
+optbl[0x6e] = &sCPU::op_ror_addr;
+optbl[0x1c] = &sCPU::op_trb_addr;
+optbl[0x0c] = &sCPU::op_tsb_addr;
+optbl[0xfe] = &sCPU::op_inc_addrx;
+optbl[0xde] = &sCPU::op_dec_addrx;
+optbl[0x1e] = &sCPU::op_asl_addrx;
+optbl[0x5e] = &sCPU::op_lsr_addrx;
+optbl[0x3e] = &sCPU::op_rol_addrx;
+optbl[0x7e] = &sCPU::op_ror_addrx;
+optbl[0xe6] = &sCPU::op_inc_dp;
+optbl[0xc6] = &sCPU::op_dec_dp;
+optbl[0x06] = &sCPU::op_asl_dp;
+optbl[0x46] = &sCPU::op_lsr_dp;
+optbl[0x26] = &sCPU::op_rol_dp;
+optbl[0x66] = &sCPU::op_ror_dp;
+optbl[0x14] = &sCPU::op_trb_dp;
+optbl[0x04] = &sCPU::op_tsb_dp;
+optbl[0xf6] = &sCPU::op_inc_dpx;
+optbl[0xd6] = &sCPU::op_dec_dpx;
+optbl[0x16] = &sCPU::op_asl_dpx;
+optbl[0x56] = &sCPU::op_lsr_dpx;
+optbl[0x36] = &sCPU::op_rol_dpx;
+optbl[0x76] = &sCPU::op_ror_dpx;
+optbl[0x90] = &sCPU::op_bcc;
+optbl[0xb0] = &sCPU::op_bcs;
+optbl[0xd0] = &sCPU::op_bne;
+optbl[0xf0] = &sCPU::op_beq;
+optbl[0x10] = &sCPU::op_bpl;
+optbl[0x30] = &sCPU::op_bmi;
+optbl[0x50] = &sCPU::op_bvc;
+optbl[0x70] = &sCPU::op_bvs;
+optbl[0x80] = &sCPU::op_bra;
+optbl[0x82] = &sCPU::op_brl;
+optbl[0x4c] = &sCPU::op_jmp_addr;
+optbl[0x5c] = &sCPU::op_jmp_long;
+optbl[0x6c] = &sCPU::op_jmp_iaddr;
+optbl[0x7c] = &sCPU::op_jmp_iaddrx;
+optbl[0xdc] = &sCPU::op_jmp_iladdr;
+optbl[0x20] = &sCPU::op_jsr_addr;
+optbl[0x22] = &sCPU::op_jsr_long;
+optbl[0xfc] = &sCPU::op_jsr_iaddrx;
+optbl[0x40] = &sCPU::op_rti;
+optbl[0x60] = &sCPU::op_rts;
+optbl[0x6b] = &sCPU::op_rtl;
+optbl[0xea] = &sCPU::op_nop;
+optbl[0x42] = &sCPU::op_wdm;
+optbl[0xeb] = &sCPU::op_xba;
+optbl[0x54] = &sCPU::op_mvn;
+optbl[0x44] = &sCPU::op_mvp;
+optbl[0x00] = &sCPU::op_brk;
+optbl[0x02] = &sCPU::op_cop;
+optbl[0xdb] = &sCPU::op_stp;
+optbl[0xcb] = &sCPU::op_wai;
+optbl[0xfb] = &sCPU::op_xce;
+optbl[0x18] = &sCPU::op_clc;
+optbl[0xd8] = &sCPU::op_cld;
+optbl[0x58] = &sCPU::op_cli;
+optbl[0xb8] = &sCPU::op_clv;
+optbl[0x38] = &sCPU::op_sec;
+optbl[0xf8] = &sCPU::op_sed;
+optbl[0x78] = &sCPU::op_sei;
+optbl[0xc2] = &sCPU::op_rep;
+optbl[0xe2] = &sCPU::op_sep;
+optbl[0xaa] = &sCPU::op_tax;
+optbl[0xa8] = &sCPU::op_tay;
+optbl[0x8a] = &sCPU::op_txa;
+optbl[0x9b] = &sCPU::op_txy;
+optbl[0x98] = &sCPU::op_tya;
+optbl[0xbb] = &sCPU::op_tyx;
+optbl[0x5b] = &sCPU::op_tcd;
+optbl[0x1b] = &sCPU::op_tcs;
+optbl[0x7b] = &sCPU::op_tdc;
+optbl[0x3b] = &sCPU::op_tsc;
+optbl[0xba] = &sCPU::op_tsx;
+optbl[0x9a] = &sCPU::op_txs;
+optbl[0x48] = &sCPU::op_pha;
+optbl[0xda] = &sCPU::op_phx;
+optbl[0x5a] = &sCPU::op_phy;
+optbl[0x0b] = &sCPU::op_phd;
+optbl[0x8b] = &sCPU::op_phb;
+optbl[0x4b] = &sCPU::op_phk;
+optbl[0x08] = &sCPU::op_php;
+optbl[0x68] = &sCPU::op_pla;
+optbl[0xfa] = &sCPU::op_plx;
+optbl[0x7a] = &sCPU::op_ply;
+optbl[0x2b] = &sCPU::op_pld;
+optbl[0xab] = &sCPU::op_plb;
+optbl[0x28] = &sCPU::op_plp;
+optbl[0xf4] = &sCPU::op_pea;
+optbl[0xd4] = &sCPU::op_pei;
+optbl[0x62] = &sCPU::op_per;
@@ -1,9 +1,9 @@
 #define CLASS_NAME "sCPU"
-#include "../../../lib/opgen_s.cpp"
+#include "../../../lib/opgen_so.cpp"

 int main() {
-//fph = fopen("op.h", "wb");
-//fpt = fopen("optable.cpp", "wb");
+  fph = fopen("op.h", "wb");
+  fpt = fopen("optable.cpp", "wb");

  generate("op_read.cpp",  "op_read.b");
  generate("op_write.cpp", "op_write.b");
@@ -11,8 +11,8 @@ int main() {
  generate("op_pc.cpp",    "op_pc.b");
  generate("op_misc.cpp",  "op_misc.b");

-//fclose(fph);
-//fclose(fpt);
+  fclose(fph);
+  fclose(fpt);

  return 0;
 }
@@ -19,19 +19,19 @@ uint8 r;
       (abus & 0x40ffff) == 0x420b || (abus & 0x40ffff) == 0x420c) {
      r = regs.mdr;
    } else {
-      r = r_mem->read(abus);
+      r = bus.read(abus);
    }
-    r_mem->write(0x2100 | bbus, r);
+    bus.write(0x2100 | bbus, r);
  } else { //b->a
    if(bbus == 0x80 && ((abus & 0x7e0000) == 0x7e0000 || (abus & 0x40e000) == 0x0000)) {
    //prevent WRAM->WRAM transfers
      r = regs.mdr;
    } else {
-      r = r_mem->read(0x2100 | bbus);
+      r = bus.read(0x2100 | bbus);
    }
    if((abus & 0x40ff00) == 0x2100 || (abus & 0x40ff80) == 0x4300 ||
       (abus & 0x40ffff) == 0x420b || (abus & 0x40ffff) == 0x420c)return;
-    r_mem->write(abus, r);
+    bus.write(abus, r);
  }

  dma_add_clocks(8);
@@ -83,8 +83,8 @@ inline uint32 sCPU::hdma_iaddr(uint8 i) {
 *****/

 void sCPU::dma_transfertobusb(uint8 i, uint8 bbus) {
-  if(cartridge.info.sdd1 == true && sdd1->dma_active() == true) {
-    r_mem->write(0x2100 | bbus, sdd1->dma_read());
+  if(cartridge.info.sdd1 == true && sdd1.dma_active() == true) {
+    bus.write(0x2100 | bbus, sdd1.dma_read());
  } else {
    dma_transfer(0, bbus, dma_addr(i));
  }
@@ -111,8 +111,7 @@ void sCPU::dma_run() {
    dma_add_clocks(8);

    if(cartridge.info.sdd1 == true) {
-      sdd1->dma_begin(i, (channel[i].srcbank << 16) | (channel[i].srcaddr),
-        channel[i].xfersize);
+      sdd1.dma_begin(i, (channel[i].srcbank << 16) | (channel[i].srcaddr), channel[i].xfersize);
    }

    if(tracer.enabled() == true && tracer.cpudma_enabled() == true) {
@@ -168,19 +167,19 @@ uint8 r = 0;
 }

 void sCPU::hdma_update(uint8 i) {
-  channel[i].hdma_line_counter = r_mem->read(hdma_addr(i));
+  channel[i].hdma_line_counter = bus.read(hdma_addr(i));
  dma_add_clocks(8);

  channel[i].hdma_completed   = (channel[i].hdma_line_counter == 0);
  channel[i].hdma_do_transfer = !channel[i].hdma_completed;

  if(channel[i].hdma_indirect) {
-    channel[i].hdma_iaddr = r_mem->read(hdma_addr(i)) << 8;
+    channel[i].hdma_iaddr = bus.read(hdma_addr(i)) << 8;
    dma_add_clocks(8);

    if(!channel[i].hdma_completed || hdma_active_after(i)) {
      channel[i].hdma_iaddr >>= 8;
-      channel[i].hdma_iaddr  |= r_mem->read(hdma_addr(i)) << 8;
+      channel[i].hdma_iaddr  |= bus.read(hdma_addr(i)) << 8;
      dma_add_clocks(8);
    }
  }
@@ -14,21 +14,21 @@ void sCPU::op_io() {
 }

 uint8 sCPU::op_read(uint32 addr) {
-  status.clock_count = r_mem->speed(addr);
+  status.clock_count = bus.speed(addr);
  precycle_edge();
  add_clocks(status.clock_count - 4);
-  regs.mdr = r_mem->read(addr);
+  regs.mdr = bus.read(addr);
  add_clocks(4);
  cycle_edge();
  return regs.mdr;
 }

 void sCPU::op_write(uint32 addr, uint8 data) {
-  status.clock_count = r_mem->speed(addr);
+  status.clock_count = bus.speed(addr);
  precycle_edge();
  add_clocks(status.clock_count);
  regs.mdr = data;
-  r_mem->write(addr, regs.mdr);
+  bus.write(addr, regs.mdr);
  cycle_edge();
 }

@@ -4,14 +4,14 @@ uint8 sCPU::pio_status() {

 //WMDATA
 uint8 sCPU::mmio_r2180() {
-uint8 r = r_mem->read(0x7e0000 | status.wram_addr);
+uint8 r = bus.read(0x7e0000 | status.wram_addr);
  status.wram_addr = (status.wram_addr + 1) & 0x01ffff;
  return r;
 }

 //WMDATA
 void sCPU::mmio_w2180(uint8 data) {
-  r_mem->write(0x7e0000 | status.wram_addr, data);
+  bus.write(0x7e0000 | status.wram_addr, data);
  status.wram_addr = (status.wram_addr + 1) & 0x01ffff;
 }

@@ -76,7 +76,7 @@ void sCPU::mmio_w4200(uint8 data) {
 //WRIO
 void sCPU::mmio_w4201(uint8 data) {
  if((status.pio & 0x80) && !(data & 0x80)) {
-    r_ppu->latch_counters();
+    ppu.latch_counters();
  }
  status.pio = data;
 }
@@ -159,7 +159,7 @@ void sCPU::mmio_w420c(uint8 data) {

 //MEMSEL
 void sCPU::mmio_w420d(uint8 data) {
-  r_mem->set_speed(data & 1);
+  bus.set_speed(data & 1);
 }

 //RDNMI
@@ -419,11 +419,13 @@ void sCPU::mmio_reset() {
  status.joy4h = 0x00;
 }

-uint8 sCPU::mmio_read(uint16 addr) {
+uint8 sCPU::mmio_read(uint addr) {
+  addr &= 0xffff;
+
 //APU
  if((addr & 0xffc0) == 0x2140) { //$2140-$217f
    scheduler.sync_cpusmp();
-    return r_smp->port_read(addr & 3);
+    return smp.port_read(addr & 3);
  }

 //DMA
@@ -474,7 +476,9 @@ uint8 sCPU::mmio_read(uint16 addr) {
  return regs.mdr;
 }

-void sCPU::mmio_write(uint16 addr, uint8 data) {
+void sCPU::mmio_write(uint addr, uint8 data) {
+  addr &= 0xffff;
+
 //APU
  if((addr & 0xffc0) == 0x2140) { //$2140-$217f
    scheduler.sync_cpusmp();
@@ -1,7 +1,7 @@
  void   mmio_power();
  void   mmio_reset();
-  uint8  mmio_read (uint16 addr);
-  void   mmio_write(uint16 addr, uint8 data);
+  uint8  mmio_read (uint addr);
+  void   mmio_write(uint addr, uint8 data);

  uint8  pio_status();

@@ -21,8 +21,8 @@ void sCPU::power() {

 void sCPU::reset() {
  regs.pc.d = 0x000000;
-  regs.pc.l = r_mem->read(0xfffc);
-  regs.pc.h = r_mem->read(0xfffd);
+  regs.pc.l = bus.read(0xfffc);
+  regs.pc.h = bus.read(0xfffd);

 //note: some registers are not fully reset by SNES
  regs.x.h  = 0x00;
@@ -48,5 +48,9 @@ void sCPU::reset() {
  apu_port[3] = 0x00;
 }

-sCPU::sCPU() {}
-sCPU::~sCPU() {}
+sCPU::sCPU() {
+  #include "core/optable.cpp"
+}
+
+sCPU::~sCPU() {
+}
@@ -1,8 +1,6 @@
-class sCPU : public CPU {
-public:
+class sCPU : public CPU { public:
  void enter();

-public:
 #include "core/core.h"
 #include "dma/dma.h"
 #include "memory/memory.h"
@@ -90,7 +90,7 @@ void sCPU::scanline() {
  status.line_rendered  = false;
  status.hdma_triggered = (status.vcounter <= (!overscan() ? 224 : 239)) ? false : true;

-  r_ppu->scanline();
+  ppu.scanline();
  snes.scanline();

  update_interrupts();
@@ -117,7 +117,7 @@ void sCPU::frame() {
    status.hdmainit_trigger_position = 12 + dma_counter();
  }

-  r_ppu->frame();
+  ppu.frame();
  snes.frame();
 }

@@ -143,7 +143,7 @@ void sCPU::cycle_edge() {
  if(status.line_rendered == false) {
    if(status.hclock >= status.line_render_position) {
      status.line_rendered = true;
-      r_ppu->render_scanline();
+      ppu.render_scanline();
    }
  }

@@ -172,7 +172,7 @@ void sCPU::cycle_edge() {
      status.hdmainit_triggered = true;
      hdma_init_reset();
      if(hdma_enabled_channels()) {
-        add_clocks(12);
+        add_clocks(18);
        hdma_init();
      //if(status.dma_state == DMASTATE_INACTIVE) {
      //  status.dma_state = DMASTATE_DMASYNC;
@@ -188,7 +188,7 @@ void sCPU::cycle_edge() {
    if(status.hclock >= 1106) {
      status.hdma_triggered = true;
      if(hdma_active_channels()) {
-        add_clocks(12);
+        add_clocks(18);
        hdma_run();
      //if(status.dma_state == DMASTATE_INACTIVE) {
      //  status.dma_state = DMASTATE_DMASYNC;
@@ -250,7 +250,7 @@ void sCPU::timing_reset() {
  status.prev_line_clocks = 1364;

  status.line_rendered        = false;
-  status.line_render_position = minmax<0, 1112>((uint16)config::ppu.hack.render_scanline_position);
+  status.line_render_position = min(1112U, (uint)config::ppu.hack.render_scanline_position);

  status.dram_refreshed        = false;
  status.dram_refresh_position = (cpu_version == 1) ? 530 : 538;
@@ -283,7 +283,7 @@ void sCPU::timing_reset() {
 //initial latch values for $213c/$213d
 //[x]0035 : [y]0000 (53.0 -> 212) [lda $2137]
 //[x]0038 : [y]0000 (56.5 -> 226) [nop : lda $2137]
-  add_clocks(186);
+//add_clocks(186);
 }

 #undef ntsc_color_burst_phase_shift_scanline
@@ -0,0 +1,586 @@
+#include "../../base.h"
+#include "adsp_tables.cpp"
+
+void aDSP::enter() { loop:
+  run();
+  goto loop;
+}
+
+uint8 aDSP::readb(uint16 addr) {
+  return spcram[addr];
+}
+
+void aDSP::writeb(uint16 addr, uint8 data) {
+  spcram[addr] = data;
+}
+
+uint16 aDSP::readw(uint16 addr) {
+  return (readb(addr + 0)) | (readb(addr + 1) << 8);
+}
+
+void aDSP::writew(uint16 addr, uint16 data) {
+  writeb(addr + 0, data);
+  writeb(addr + 1, data >> 8);
+}
+
+uint8 aDSP::read(uint8 addr) {
+  addr &= 127;
+int v = addr >> 4;
+int n = addr & 15;
+
+  switch(addr) {
+  case 0x00: case 0x10: case 0x20: case 0x30:
+  case 0x40: case 0x50: case 0x60: case 0x70:
+    return voice[v].VOLL;
+  case 0x01: case 0x11: case 0x21: case 0x31:
+  case 0x41: case 0x51: case 0x61: case 0x71:
+    return voice[v].VOLR;
+  case 0x02: case 0x12: case 0x22: case 0x32:
+  case 0x42: case 0x52: case 0x62: case 0x72:
+    return voice[v].PITCH;
+  case 0x03: case 0x13: case 0x23: case 0x33:
+  case 0x43: case 0x53: case 0x63: case 0x73:
+    return voice[v].PITCH >> 8;
+  case 0x04: case 0x14: case 0x24: case 0x34:
+  case 0x44: case 0x54: case 0x64: case 0x74:
+    return voice[v].SRCN;
+  case 0x05: case 0x15: case 0x25: case 0x35:
+  case 0x45: case 0x55: case 0x65: case 0x75:
+    return voice[v].ADSR1;
+  case 0x06: case 0x16: case 0x26: case 0x36:
+  case 0x46: case 0x56: case 0x66: case 0x76:
+    return voice[v].ADSR2;
+  case 0x07: case 0x17: case 0x27: case 0x37:
+  case 0x47: case 0x57: case 0x67: case 0x77:
+    return voice[v].GAIN;
+  case 0x08: case 0x18: case 0x28: case 0x38:
+  case 0x48: case 0x58: case 0x68: case 0x78:
+    return voice[v].ENVX;
+  case 0x09: case 0x19: case 0x29: case 0x39:
+  case 0x49: case 0x59: case 0x69: case 0x79:
+    return voice[v].OUTX;
+
+  case 0x0f: case 0x1f: case 0x2f: case 0x3f:
+  case 0x4f: case 0x5f: case 0x6f: case 0x7f:
+    return status.FIR[v];
+
+  case 0x0c: return status.MVOLL;
+  case 0x1c: return status.MVOLR;
+  case 0x2c: return status.EVOLL;
+  case 0x3c: return status.EVOLR;
+  case 0x4c: return status.KON;
+  case 0x5c: return status.KOFF;
+  case 0x6c: return status.FLG;
+  case 0x7c: return status.ENDX;
+
+  case 0x0d: return status.EFB;
+  case 0x2d: return status.PMON;
+  case 0x3d: return status.NON;
+  case 0x4d: return status.EON;
+  case 0x5d: return status.DIR;
+  case 0x6d: return status.ESA;
+  case 0x7d: return status.EDL;
+  }
+
+  return dspram[addr];
+}
+
+void aDSP::write(uint8 addr, uint8 data) {
+//0x80-0xff is a read-only mirror of 0x00-0x7f
+  if(addr & 0x80)return;
+
+int v = addr >> 4;
+int n = addr & 15;
+
+  switch(addr) {
+  case 0x00: case 0x10: case 0x20: case 0x30:
+  case 0x40: case 0x50: case 0x60: case 0x70:
+    voice[v].VOLL = data;
+    break;
+  case 0x01: case 0x11: case 0x21: case 0x31:
+  case 0x41: case 0x51: case 0x61: case 0x71:
+    voice[v].VOLR = data;
+    break;
+  case 0x02: case 0x12: case 0x22: case 0x32:
+  case 0x42: case 0x52: case 0x62: case 0x72:
+    voice[v].PITCH &= 0xff00;
+    voice[v].PITCH |= data;
+    break;
+  case 0x03: case 0x13: case 0x23: case 0x33:
+  case 0x43: case 0x53: case 0x63: case 0x73:
+    voice[v].PITCH &= 0x00ff;
+    voice[v].PITCH |= data << 8;
+    break;
+  case 0x04: case 0x14: case 0x24: case 0x34:
+  case 0x44: case 0x54: case 0x64: case 0x74:
+    voice[v].SRCN = data;
+    break;
+  case 0x05: case 0x15: case 0x25: case 0x35:
+  case 0x45: case 0x55: case 0x65: case 0x75:
+    voice[v].ADSR1 = data;
+    voice[v].AdjustEnvelope();
+    break;
+  case 0x06: case 0x16: case 0x26: case 0x36:
+  case 0x46: case 0x56: case 0x66: case 0x76:
+    voice[v].ADSR2 = data;
+  //sustain_level = 0-7, 7 is a special case handled by ATTACK envx mode
+    voice[v].env_sustain = (voice[v].ADSR_sus_level() + 1) << 8;
+    voice[v].AdjustEnvelope();
+    break;
+  case 0x07: case 0x17: case 0x27: case 0x37:
+  case 0x47: case 0x57: case 0x67: case 0x77:
+    voice[v].GAIN = data;
+    voice[v].AdjustEnvelope();
+    break;
+  case 0x08: case 0x18: case 0x28: case 0x38:
+  case 0x48: case 0x58: case 0x68: case 0x78:
+    voice[v].ENVX = data;
+    break;
+  case 0x09: case 0x19: case 0x29: case 0x39:
+  case 0x49: case 0x59: case 0x69: case 0x79:
+    voice[v].OUTX = data;
+    break;
+
+  case 0x0f: case 0x1f: case 0x2f: case 0x3f:
+  case 0x4f: case 0x5f: case 0x6f: case 0x7f:
+    status.FIR[v] = data;
+    break;
+
+  case 0x0c: status.MVOLL = data; break;
+  case 0x1c: status.MVOLR = data; break;
+  case 0x2c: status.EVOLL = data; break;
+  case 0x3c: status.EVOLR = data; break;
+
+  case 0x4c:
+    status.KON = data;
+    status.kon = data;
+    break;
+  case 0x5c:
+    status.KOFF = data;
+    break;
+  case 0x6c:
+    status.FLG = data;
+    status.noise_rate = rate_table[data & 0x1f];
+    break;
+
+  case 0x7c:
+  //read-only register, writes clear all bits of ENDX
+    status.ENDX = 0;
+    break;
+
+  case 0x0d: status.EFB  = data; break;
+  case 0x2d: status.PMON = data; break;
+  case 0x3d: status.NON  = data; break;
+  case 0x4d: status.EON  = data; break;
+  case 0x5d: status.DIR  = data; break;
+  case 0x6d: status.ESA  = data; break;
+  case 0x7d: status.EDL  = data; break;
+  }
+
+  dspram[addr] = data;
+}
+
+void aDSP::power() {
+  spcram = r_smp->get_spcram_handle();
+  memset(dspram, 0x00, 128);
+
+  for(int v = 0; v < 8; v++) {
+    voice[v].VOLL  = 0;
+    voice[v].VOLR  = 0;
+    voice[v].PITCH = 0;
+    voice[v].SRCN  = 0;
+    voice[v].ADSR1 = 0;
+    voice[v].ADSR2 = 0;
+    voice[v].GAIN  = 0;
+
+    status.FIR[v]  = 0;
+  }
+
+  status.FLG   = 0xe0;
+  status.MVOLL = status.MVOLR = 0;
+  status.EVOLL = status.EVOLR = 0;
+  status.ENDX  = 0;
+  status.EFB   = 0;
+  status.PMON  = 0;
+  status.NON   = 0;
+  status.EON   = 0;
+  status.DIR   = 0;
+  status.ESA   = 0;
+  status.EDL   = 0;
+
+  status.echo_length = 0;
+
+  reset();
+}
+
+void aDSP::reset() {
+  status.KON   = 0x00;
+  status.KOFF  = 0x00;
+  status.FLG  |= 0xe0;
+
+  status.kon = 0x00;
+  status.esa = 0x00;
+
+  status.noise_ctr    = 0;
+  status.noise_rate   = 0;
+  status.noise_sample = 0x4000;
+
+  status.echo_index       = 0;
+  status.fir_buffer_index = 0;
+
+  for(int v = 0; v < 8; v++) {
+    voice[v].ENVX = 0;
+    voice[v].OUTX = 0;
+
+    voice[v].pitch_ctr = 0;
+
+    voice[v].brr_index      = 0;
+    voice[v].brr_ptr        = readw((status.DIR << 8) + (voice[v].SRCN << 2));
+    voice[v].brr_looped     = false;
+    voice[v].brr_data[0]    = 0;
+    voice[v].brr_data[1]    = 0;
+    voice[v].brr_data[2]    = 0;
+    voice[v].brr_data[3]    = 0;
+    voice[v].brr_data_index = 0;
+
+    voice[v].envx      = 0;
+    voice[v].env_ctr   = 0;
+    voice[v].env_rate  = 0;
+    voice[v].env_state = SILENCE;
+    voice[v].env_mode  = DIRECT;
+
+    status.fir_buffer[0][v] = 0;
+    status.fir_buffer[1][v] = 0;
+  }
+
+  dsp_counter = 0;
+}
+
+void aDSP::run() {
+uint8 pmon;
+int32 sample;
+int32 msamplel, msampler;
+int32 esamplel, esampler;
+int32 fir_samplel, fir_sampler;
+  pmon = status.PMON & ~status.NON & ~1;
+
+  if((dsp_counter++ & 1) == 0) {
+    for(uint v = 0; v < 8; v++) {
+      if(status.soft_reset()) {
+        if(voice[v].env_state != SILENCE) {
+          voice[v].env_state = SILENCE;
+          voice[v].AdjustEnvelope();
+        }
+      }
+      if(status.KOFF & (1 << v)) {
+        if(voice[v].env_state != SILENCE && voice[v].env_state != RELEASE) {
+          voice[v].env_state = RELEASE;
+          voice[v].AdjustEnvelope();
+        }
+      }
+      if(status.kon & (1 << v)) {
+        voice[v].brr_ptr     = readw((status.DIR << 8) + (voice[v].SRCN << 2));
+        voice[v].brr_index   = -9;
+        voice[v].brr_looped  = false;
+        voice[v].brr_data[0] = 0;
+        voice[v].brr_data[1] = 0;
+        voice[v].brr_data[2] = 0;
+        voice[v].brr_data[3] = 0;
+        voice[v].envx        = 0;
+        voice[v].env_state   = ATTACK;
+        voice[v].AdjustEnvelope();
+      }
+    }
+    status.ENDX &= ~status.kon;
+    status.kon = 0;
+  }
+
+/*****
+ * update noise
+ *****/
+  status.noise_ctr += status.noise_rate;
+  if(status.noise_ctr >= 0x7800) {
+    status.noise_ctr   -= 0x7800;
+    status.noise_sample = (status.noise_sample >> 1) | (((status.noise_sample << 14) ^ (status.noise_sample << 13)) & 0x4000);
+  }
+
+  msamplel = msampler = 0;
+  esamplel = esampler = 0;
+
+/*****
+ * process voice channels
+ *****/
+  for(int v = 0; v < 8; v++) {
+    if(voice[v].brr_index < -1) {
+      voice[v].brr_index++;
+      voice[v].OUTX = voice[v].outx = 0;
+      voice[v].ENVX = 0;
+      continue;
+    }
+
+    if(voice[v].brr_index >= 0) {
+      if(pmon & (1 << v)) {
+        voice[v].pitch_ctr += (voice[v].pitch_rate() * (voice[v - 1].outx + 0x8000)) >> 15;
+      } else {
+        voice[v].pitch_ctr += voice[v].pitch_rate();
+      }
+    } else {
+      voice[v].pitch_ctr = 0x3000;
+      voice[v].brr_index = 0;
+    }
+
+  /*****
+   * decode BRR samples
+   *****/
+    while(voice[v].pitch_ctr >= 0) {
+      voice[v].pitch_ctr -= 0x1000;
+
+      voice[v].brr_data_index++;
+      voice[v].brr_data_index &= 3;
+
+      if(voice[v].brr_index == 0) {
+        voice[v].brr_header = readb(voice[v].brr_ptr);
+
+        if(voice[v].brr_header_flags() == BRR_END) {
+          status.ENDX |= (1 << v);
+          voice[v].env_state = SILENCE;
+          voice[v].AdjustEnvelope();
+        }
+      }
+
+#define S(x) voice[v].brr_data[(voice[v].brr_data_index + (x)) & 3]
+      if(voice[v].env_state != SILENCE) {
+        sample = readb(voice[v].brr_ptr + 1 + (voice[v].brr_index >> 1));
+        if(voice[v].brr_index & 1) {
+          sample = sclip<4>(sample);
+        } else {
+          sample = sclip<4>(sample >> 4);
+        }
+
+        if(voice[v].brr_header_shift() <= 12) {
+          sample = (sample << voice[v].brr_header_shift() >> 1);
+        } else {
+          sample &= ~0x7ff;
+        }
+
+        switch(voice[v].brr_header_filter()) {
+        case 0: //direct
+          break;
+        case 1: //15/16
+          sample += S(-1) + ((-S(-1)) >> 4);
+          break;
+        case 2: //61/32 - 15/16
+          sample += (S(-1) << 1) + ((-((S(-1) << 1) + S(-1))) >> 5)
+                  - S(-2) + (S(-2) >> 4);
+          break;
+        case 3: //115/64 - 13/16
+          sample += (S(-1) << 1) + ((-(S(-1) + (S(-1) << 2) + (S(-1) << 3))) >> 6)
+                  - S(-2) + (((S(-2) << 1) + S(-2)) >> 4);
+          break;
+        }
+
+        S(0) = sample = sclip<15>(sclamp<16>(sample));
+      } else {
+        S(0) = sample = 0;
+      }
+
+      if(++voice[v].brr_index > 15) {
+        voice[v].brr_index = 0;
+        if(voice[v].brr_header_flags() & BRR_END) {
+          if(voice[v].brr_header_flags() & BRR_LOOP) {
+            status.ENDX |= (1 << v);
+          }
+          voice[v].brr_ptr    = readw((status.DIR << 8) + (voice[v].SRCN << 2) + 2);
+          voice[v].brr_looped = true;
+        } else {
+          voice[v].brr_ptr   += 9;
+        }
+      }
+    }
+
+  /*****
+   * volume envelope adjust
+   *****/
+    voice[v].env_ctr += voice[v].env_rate;
+
+    if(voice[v].env_ctr >= 0x7800) {
+      voice[v].env_ctr -= 0x7800;
+      switch(voice[v].env_mode) {
+      case DIRECT:
+        voice[v].env_rate = 0;
+        break;
+      case LINEAR_DEC:
+        voice[v].envx -= 32;
+        if(voice[v].envx <= 0) {
+          voice[v].envx     = 0;
+          voice[v].env_rate = 0;
+          voice[v].env_mode = DIRECT;
+        }
+        break;
+      case LINEAR_INC:
+        voice[v].envx += 32;
+        if(voice[v].envx >= 0x7ff) {
+          voice[v].envx     = 0x7ff;
+          voice[v].env_rate = 0;
+          voice[v].env_mode = DIRECT;
+          if(voice[v].ADSR_enabled() && voice[v].env_state == ATTACK) {
+            voice[v].env_state = ((voice[v].env_sustain == 0x800) ? SUSTAIN : DECAY);
+            voice[v].AdjustEnvelope();
+          }
+        }
+        break;
+      case EXP_DEC:
+      //multiply by 255/256ths
+        voice[v].envx -= ((voice[v].envx - 1) >> 8) + 1;
+        if(voice[v].ADSR_enabled() && voice[v].env_state == DECAY && voice[v].envx <= voice[v].env_sustain) {
+          voice[v].env_state = SUSTAIN;
+          voice[v].AdjustEnvelope();
+        } else if(voice[v].envx <= 0) {
+          voice[v].envx     = 0;
+          voice[v].env_rate = 0;
+          voice[v].env_mode = DIRECT;
+        }
+        break;
+      case BENT_INC:
+        if(voice[v].envx < 0x600) {
+          voice[v].envx += 32;
+        } else {
+          voice[v].envx += 8;
+
+          if(voice[v].envx >= 0x7ff) {
+            voice[v].envx     = 0x7ff;
+            voice[v].env_rate = 0;
+            voice[v].env_mode = DIRECT;
+          }
+        }
+        break;
+      case FAST_ATTACK:
+        voice[v].envx += 0x400;
+        if(voice[v].envx >= 0x7ff) {
+          voice[v].envx = 0x7ff;
+
+        //attack raises to max envx. if sustain is also set to max envx, skip decay phase
+          voice[v].env_state = ((voice[v].env_sustain == 0x800) ? SUSTAIN : DECAY);
+          voice[v].AdjustEnvelope();
+        }
+        break;
+      case RELEASE_DEC:
+        voice[v].envx -= 8;
+        if(voice[v].envx <= 0) {
+          voice[v].env_state = SILENCE;
+          voice[v].AdjustEnvelope();
+        }
+        break;
+      }
+    }
+
+    voice[v].ENVX = voice[v].envx >> 4;
+
+  /*****
+   * gaussian interpolation / noise
+   *****/
+    if(status.NON & (1 << v)) {
+      sample  = sclip<15>(status.noise_sample);
+    } else {
+    int32 d = voice[v].pitch_ctr >> 4; //-256 <= sample <= -1
+      sample  = ((gaussian_table[ -1 - d] * S(-3)) >> 11);
+      sample += ((gaussian_table[255 - d] * S(-2)) >> 11);
+      sample += ((gaussian_table[512 + d] * S(-1)) >> 11);
+      sample  = sclip <15>(sample);
+      sample += ((gaussian_table[256 + d] * S( 0)) >> 11);
+      sample  = sclamp<15>(sample);
+    }
+#undef S
+
+  /*****
+   * envelope / volume adjust
+   *****/
+    sample = (sample * voice[v].envx) >> 11;
+    voice[v].outx = sample << 1;
+    voice[v].OUTX = sample >> 7;
+
+    if(!status.mute()) {
+      msamplel += ((sample * voice[v].VOLL) >> 7) << 1;
+      msampler += ((sample * voice[v].VOLR) >> 7) << 1;
+    }
+
+    if((status.EON & (1 << v)) && status.echo_write()) {
+      esamplel += ((sample * voice[v].VOLL) >> 7) << 1;
+      esampler += ((sample * voice[v].VOLR) >> 7) << 1;
+    }
+  }
+
+/*****
+ * echo (FIR) adjust
+ *****/
+#define F(c,x) status.fir_buffer[c][(status.fir_buffer_index + (x)) & 7]
+  status.fir_buffer_index++;
+  F(0,0) = readw((status.esa << 8) + status.echo_index + 0);
+  F(1,0) = readw((status.esa << 8) + status.echo_index + 2);
+
+  fir_samplel = (F(0,-0) * status.FIR[7] +
+                 F(0,-1) * status.FIR[6] +
+                 F(0,-2) * status.FIR[5] +
+                 F(0,-3) * status.FIR[4] +
+                 F(0,-4) * status.FIR[3] +
+                 F(0,-5) * status.FIR[2] +
+                 F(0,-6) * status.FIR[1] +
+                 F(0,-7) * status.FIR[0]);
+
+  fir_sampler = (F(1,-0) * status.FIR[7] +
+                 F(1,-1) * status.FIR[6] +
+                 F(1,-2) * status.FIR[5] +
+                 F(1,-3) * status.FIR[4] +
+                 F(1,-4) * status.FIR[3] +
+                 F(1,-5) * status.FIR[2] +
+                 F(1,-6) * status.FIR[1] +
+                 F(1,-7) * status.FIR[0]);
+#undef F
+
+/*****
+ * update echo buffer
+ *****/
+  if(status.echo_write()) {
+    esamplel += (fir_samplel * status.EFB) >> 14;
+    esampler += (fir_sampler * status.EFB) >> 14;
+
+    esamplel = sclamp<16>(esamplel);
+    esampler = sclamp<16>(esampler);
+
+    writew((status.esa << 8) + status.echo_index + 0, esamplel);
+    writew((status.esa << 8) + status.echo_index + 2, esampler);
+  }
+
+  status.echo_index += 4;
+  if(status.echo_index >= status.echo_length) {
+    status.echo_index  = 0;
+    status.echo_length = (status.EDL & 0x0f) << 11;
+  }
+
+//ESA read occurs at roughly 22/32th sample
+//ESA fetch occurs at roughly 29/32th sample
+//as this is not a subsample-level S-DSP emulator,
+//simulate ~25/32th delay by caching ESA for one
+//complete sample ...
+  status.esa = status.ESA;
+
+/*****
+ * main output adjust
+ *****/
+  if(!status.mute()) {
+    msamplel  = (msamplel * status.MVOLL) >> 7;
+    msampler  = (msampler * status.MVOLR) >> 7;
+
+    msamplel += (fir_samplel * status.EVOLL) >> 14;
+    msampler += (fir_sampler * status.EVOLR) >> 14;
+
+    msamplel  = sclamp<16>(msamplel);
+    msampler  = sclamp<16>(msampler);
+  }
+
+  snes.audio_update(msamplel, msampler);
+  scheduler.addclocks_dsp(32 * 3);
+}
+
+aDSP::aDSP()  {}
+aDSP::~aDSP() {}
@@ -0,0 +1,172 @@
+class aDSP : public DSP {
+private:
+uint8 dspram[128];
+uint8 *spcram;
+
+uint32 dsp_counter;
+
+enum { BRR_END = 1, BRR_LOOP = 2 };
+
+uint8  readb (uint16 addr);
+uint16 readw (uint16 addr);
+void   writeb(uint16 addr, uint8  data);
+void   writew(uint16 addr, uint16 data);
+
+public:
+static const uint16 rate_table[32];
+static const int16  gaussian_table[512];
+
+enum EnvelopeStates {
+  ATTACK,
+  DECAY,
+  SUSTAIN,
+  RELEASE,
+  SILENCE
+};
+
+enum EnvelopeModes {
+  DIRECT,
+  LINEAR_DEC,
+  EXP_DEC,
+  LINEAR_INC,
+  BENT_INC,
+
+  FAST_ATTACK,
+  RELEASE_DEC
+};
+
+private:
+struct Status {
+//$0c,$1c
+  int8   MVOLL, MVOLR;
+//$2c,$3c
+  int8   EVOLL, EVOLR;
+//$4c,$5c
+  uint8  KON, KOFF;
+//$6c
+  uint8  FLG;
+//$7c
+  uint8  ENDX;
+//$0d
+  int8   EFB;
+//$2d,$3d,$4d
+  uint8  PMON, NON, EON;
+//$5d
+  uint8  DIR;
+//$6d,$7d
+  uint8  ESA, EDL;
+
+//$xf
+  int8   FIR[8];
+
+//internal variables
+  uint8  kon, esa;
+
+  int16  noise_ctr, noise_rate;
+  uint16 noise_sample;
+
+  uint16 echo_index, echo_length;
+  int16  fir_buffer[2][8];
+  uint8  fir_buffer_index;
+
+//functions
+  bool soft_reset() { return !!(FLG & 0x80); }
+  bool mute()       { return !!(FLG & 0x40); }
+  bool echo_write() { return  !(FLG & 0x20); }
+} status;
+
+struct Voice {
+//$x0-$x1
+  int8   VOLL, VOLR;
+//$x2-$x3
+  int16  PITCH;
+//$x4
+  uint8  SRCN;
+//$x5-$x7
+  uint8  ADSR1, ADSR2, GAIN;
+//$x8-$x9
+  uint8  ENVX, OUTX;
+
+//internal variables
+  int16  pitch_ctr;
+
+  int8   brr_index;
+  uint16 brr_ptr;
+  uint8  brr_header;
+  bool   brr_looped;
+
+  int16  brr_data[4];
+  uint8  brr_data_index;
+
+  int16  envx;
+  uint16 env_ctr, env_rate, env_sustain;
+  enum   EnvelopeStates env_state;
+  enum   EnvelopeModes  env_mode;
+
+  int16  outx;
+
+//functions
+  int16 pitch_rate()        { return PITCH & 0x3fff; }
+
+  uint8 brr_header_shift()  { return brr_header >> 4; }
+  uint8 brr_header_filter() { return (brr_header >> 2) & 3; }
+  uint8 brr_header_flags()  { return brr_header & 3; }
+
+  bool  ADSR_enabled()      { return !!(ADSR1 & 0x80); }
+  uint8 ADSR_decay()        { return (ADSR1 >> 4) & 7; }
+  uint8 ADSR_attack()       { return ADSR1 & 15; }
+  uint8 ADSR_sus_level()    { return ADSR2 >> 5; }
+  uint8 ADSR_sus_rate()     { return ADSR2 & 31; }
+
+  void  AdjustEnvelope() {
+    if(env_state == SILENCE) {
+      env_mode = DIRECT;
+      env_rate = 0;
+      envx     = 0;
+    } else if(env_state == RELEASE) {
+      env_mode = RELEASE_DEC;
+      env_rate = 0x7800;
+    } else if(ADSR_enabled()) {
+      switch(env_state) {
+      case ATTACK:
+        env_rate = rate_table[(ADSR_attack() << 1) + 1];
+        env_mode = (env_rate == 0x7800) ? FAST_ATTACK : LINEAR_INC;
+        break;
+      case DECAY:
+        env_rate = rate_table[(ADSR_decay() << 1) + 0x10];
+        env_mode = EXP_DEC;
+        break;
+      case SUSTAIN:
+        env_rate = rate_table[ADSR_sus_rate()];
+        env_mode = (env_rate == 0) ? DIRECT : EXP_DEC;
+        break;
+      }
+    } else if(GAIN & 0x80) {
+      switch(GAIN & 0x60) {
+      case 0x00: env_mode = LINEAR_DEC; break;
+      case 0x20: env_mode = EXP_DEC;    break;
+      case 0x40: env_mode = LINEAR_INC; break;
+      case 0x60: env_mode = BENT_INC;   break;
+      }
+      env_rate = rate_table[GAIN & 0x1f];
+    } else {
+      env_mode = DIRECT;
+      env_rate = 0;
+      envx     = (GAIN & 0x7f) << 4;
+    }
+  }
+} voice[8];
+
+public:
+  void   enter();
+  void   run();
+
+  uint8  read (uint8 addr);
+  void   write(uint8 addr, uint8 data);
+
+  void   power();
+  void   reset();
+
+  aDSP();
+  ~aDSP();
+};
@@ -1,11 +1,11 @@
-const uint16 bDSP::RateTable[32] = {
+const uint16 aDSP::rate_table[32] = {
  0x0000, 0x000F, 0x0014, 0x0018, 0x001E, 0x0028, 0x0030, 0x003C,
  0x0050, 0x0060, 0x0078, 0x00A0, 0x00C0, 0x00F0, 0x0140, 0x0180,
  0x01E0, 0x0280, 0x0300, 0x03C0, 0x0500, 0x0600, 0x0780, 0x0A00,
  0x0C00, 0x0F00, 0x1400, 0x1800, 0x1E00, 0x2800, 0x3C00, 0x7800
 };

-const int16 bDSP::GaussTable[512] = {
+const int16 aDSP::gaussian_table[512] = {
  0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
  0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
  0x001, 0x001, 0x001, 0x001, 0x001, 0x001, 0x001, 0x001,
@@ -1,171 +1,172 @@
 class bDSP : public DSP {
-private:
-uint8 dspram[128];
-uint8 *spcram;
+public:
+	void enter();
+	
+	uint8 read( uint8 addr );
+	void write( uint8 addr, uint8 data );

-uint32 dsp_counter;
+	void power();
+	void reset();
+	
+	bDSP();
+	~bDSP();

-enum { BRR_END = 1, BRR_LOOP = 2 };
-
-uint8  readb (uint16 addr);
-uint16 readw (uint16 addr);
-void   writeb(uint16 addr, uint8  data);
-void   writew(uint16 addr, uint16 data);
+	template<int n, typename T> inline T asr(const T x) {
+	enum { bits = (sizeof(T) << 3) - n };
+		return sclip<bits>(x >> n);
+	}

 public:
-static const uint16 RateTable[32];
-static const int16  GaussTable[512];
-
-enum EnvelopeStates {
-  ATTACK,
-  DECAY,
-  SUSTAIN,
-  RELEASE,
-  SILENCE
-};
-
-enum EnvelopeModes {
-  DIRECT,
-  LINEAR_DEC,
-  EXP_DEC,
-  LINEAR_INC,
-  BENT_INC,
-
-  FAST_ATTACK,
-  RELEASE_DEC
-};

+	enum { echo_hist_size = 8 };
+	enum { register_count = 128 };
+	enum { voice_count = 8 };
+	
+	enum env_mode_t { env_release, env_attack, env_decay, env_sustain };
+	enum { brr_buf_size = 12 };
+	struct voice_t
+	{
+		int buf [brr_buf_size*2];// decoded samples (twice the size to simplify wrap handling)
+		int buf_pos;            // place in buffer where next samples will be decoded
+		int interp_pos;         // relative fractional position in sample (0x1000 = 1.0)
+		int brr_addr;           // address of current BRR block
+		int brr_offset;         // current decoding offset in BRR block
+		uint8* regs;            // pointer to voice's DSP registers
+		int vbit;               // bitmask for voice: 0x01 for voice 0, 0x02 for voice 1, etc.
+		int kon_delay;          // KON delay/current setup phase
+		env_mode_t env_mode;
+		int env;                // current envelope level
+		int hidden_env;         // used by GAIN mode 7, very obscure quirk
+		uint8 t_envx_out;
+	};
 private:
-struct Status {
-//$0c,$1c
-  int8   MVOLL, MVOLR;
-//$2c,$3c
-  int8   EVOLL, EVOLR;
-//$4c,$5c
-  uint8  KON, KOFF;
-//$6c
-  uint8  FLG;
-//$7c
-  uint8  ENDX;
-//$0d
-  int8   EFB;
-//$2d,$3d,$4d
-  uint8  PMON, NON, EON;
-//$5d
-  uint8  DIR;
-//$6d,$7d
-  uint8  ESA, EDL;
+	
+	struct state_t
+	{
+		uint8 regs [register_count];
+		
+		// Echo history keeps most recent 8 samples
+		int echo_hist [echo_hist_size] [2];
+		int echo_hist_pos;
+		
+		int every_other_sample; // toggles every sample
+		int kon;                // KON value when last checked
+		int noise;
+		int counter;
+		int echo_offset;        // offset from ESA in echo buffer
+		int echo_length;        // number of bytes that echo_offset will stop at
+		
+		// Hidden registers also written to when main register is written to
+		int new_kon;
+		uint8 endx_buf;
+		uint8 envx_buf;
+		uint8 outx_buf;
+		
+		// Temporary state between clocks
+		
+		// read once per sample
+		int t_pmon;
+		int t_non;
+		int t_eon;
+		int t_dir;
+		int t_koff;
+		
+		// read a few clocks ahead then used
+		int t_brr_next_addr;
+		int t_adsr0;
+		int t_brr_header;
+		int t_brr_byte;
+		int t_srcn;
+		
+		// internal state that is recalculated every sample
+		int t_dir_addr;
+		int t_pitch;
+		int t_output;
+		int t_looped;
+		
+		// left/right sums
+		int t_main_out [2];
+		int t_echo_out [2];
+		
+		voice_t voices [voice_count];
+	};
+	state_t m;
+	uint8* ram;
+	
+	unsigned read_counter( int rate );
+	
+	void run_envelope( voice_t* const v );
+	void decode_brr( voice_t* v );

-//$xf
-  int8   FIR[8];
+	void voice_output( voice_t const* v, int ch );
+	void voice_V1( voice_t* const );
+	void voice_V2( voice_t* const );
+	void voice_V3( voice_t* const );
+	void voice_V3a( voice_t* const );
+	void voice_V3b( voice_t* const );
+	void voice_V3c( voice_t* const );
+	void voice_V4( voice_t* const );
+	void voice_V5( voice_t* const );
+	void voice_V6( voice_t* const );
+	void voice_V7( voice_t* const );
+	void voice_V8( voice_t* const );
+	void voice_V9( voice_t* const );
+	void voice_V7_V4_V1( voice_t* const );
+	void voice_V8_V5_V2( voice_t* const );
+	void voice_V9_V6_V3( voice_t* const );

-//internal variables
-  uint8  kon;
-  bool   key_flag;
+	int  calc_echo_output( int ch, int sample );
+	
+	// Global registers
+	enum {
+	    r_mvoll = 0x0C, r_mvolr = 0x1C,
+	    r_evoll = 0x2C, r_evolr = 0x3C,
+	    r_kon   = 0x4C, r_koff  = 0x5C,
+	    r_flg   = 0x6C, r_endx  = 0x7C,
+	    r_efb   = 0x0D, r_pmon  = 0x2D,
+	    r_non   = 0x3D, r_eon   = 0x4D,
+	    r_dir   = 0x5D, r_esa   = 0x6D,
+	    r_edl   = 0x7D,
+	    r_fir   = 0x0F // 8 coefficients at 0x0F, 0x1F ... 0x7F
+	};

-  int16  noise_ctr, noise_rate;
-  uint16 noise_sample;
-
-  uint16 echo_index, echo_size, echo_target;
-  int16  fir_buffer[2][8];
-  uint8  fir_buffer_index;
-
-//functions
-  bool soft_reset() { return bool(FLG & 0x80); }
-  bool mute()       { return bool(FLG & 0x40); }
-  bool echo_write() { return    !(FLG & 0x20); }
-} status;
-
-struct Voice {
-//$x0-$x1
-  int8   VOLL, VOLR;
-//$x2-$x3
-  int16  PITCH;
-//$x4
-  uint8  SRCN;
-//$x5-$x7
-  uint8  ADSR1, ADSR2, GAIN;
-//$x8-$x9
-  uint8  ENVX, OUTX;
-
-//internal variables
-  int16  pitch_ctr;
-
-  int8   brr_index;
-  uint16 brr_ptr;
-  uint8  brr_header;
-  bool   brr_looped;
-
-  int16  brr_data[4];
-  uint8  brr_data_index;
-
-  int16  envx;
-  uint16 env_ctr, env_rate, env_sustain;
-  enum   EnvelopeStates env_state;
-  enum   EnvelopeModes  env_mode;
-
-  int16  outx;
-
-//functions
-  int16 pitch_rate()        { return PITCH & 0x3fff; }
-
-  uint8 brr_header_shift()  { return brr_header >> 4; }
-  uint8 brr_header_filter() { return (brr_header >> 2) & 3; }
-  uint8 brr_header_flags()  { return brr_header & 3; }
-
-  bool  ADSR_enabled()      { return bool(ADSR1 & 0x80); }
-  uint8 ADSR_decay()        { return (ADSR1 >> 4) & 7; }
-  uint8 ADSR_attack()       { return ADSR1 & 15; }
-  uint8 ADSR_sus_level()    { return ADSR2 >> 5; }
-  uint8 ADSR_sus_rate()     { return ADSR2 & 31; }
-
-  void  AdjustEnvelope() {
-    if(env_state == SILENCE) {
-      env_mode = DIRECT;
-      env_rate = 0;
-      envx     = 0;
-    } else if(env_state == RELEASE) {
-      env_mode = RELEASE_DEC;
-      env_rate = 0x7800;
-    } else if(ADSR_enabled()) {
-      switch(env_state) {
-      case ATTACK:
-        env_rate = RateTable[(ADSR_attack() << 1) + 1];
-        env_mode = (env_rate == 0x7800) ? FAST_ATTACK : LINEAR_INC;
-        break;
-      case DECAY:
-        env_rate = RateTable[(ADSR_decay() << 1) + 0x10];
-        env_mode = EXP_DEC;
-        break;
-      case SUSTAIN:
-        env_rate = RateTable[ADSR_sus_rate()];
-        env_mode = (env_rate == 0) ? DIRECT : EXP_DEC;
-        break;
-      }
-    } else if(GAIN & 0x80) {
-      switch(GAIN & 0x60) {
-      case 0x00: env_mode = LINEAR_DEC; break;
-      case 0x20: env_mode = EXP_DEC;    break;
-      case 0x40: env_mode = LINEAR_INC; break;
-      case 0x60: env_mode = BENT_INC;   break;
-      }
-      env_rate = RateTable[GAIN & 0x1f];
-    } else {
-      env_mode = DIRECT;
-      env_rate = 0;
-      envx     = (GAIN & 0x7f) << 4;
-    }
-  }
-} voice[8];
-
-public:
-  uint8  read (uint8 addr);
-  void   write(uint8 addr, uint8 data);
-
-  void   power();
-  void   reset();
-  uint32 run();
-
-  bDSP();
-  ~bDSP();
+	// Voice registers
+	enum {
+		v_voll   = 0x00, v_volr   = 0x01,
+		v_pitchl = 0x02, v_pitchh = 0x03,
+		v_srcn   = 0x04, v_adsr0  = 0x05,
+		v_adsr1  = 0x06, v_gain   = 0x07,
+		v_envx   = 0x08, v_outx   = 0x09
+	};
 };
+
+inline uint8 bDSP::read( uint8 addr )
+{
+	return m.regs [addr];
+}
+
+inline void bDSP::write( uint8 addr, uint8 data )
+{
+	m.regs [addr] = data;
+	switch ( addr & 0x0F )
+	{
+	case v_envx:
+		m.envx_buf = data;
+		break;
+		
+	case v_outx:
+		m.outx_buf = data;
+		break;
+	
+	case 0x0C:
+		if ( addr == r_kon )
+			m.new_kon = data;
+		
+		if ( addr == r_endx ) // always cleared, regardless of data written
+		{
+			m.endx_buf = 0;
+			m.regs [r_endx] = 0;
+		}
+		break;
+	}
+}
@@ -0,0 +1,32 @@
+#include "../../base.h"
+#include "spc_dsp.h"
+
+void bDSP::power() {
+  spc_dsp_init(r_smp->get_spcram_handle());
+  spc_dsp_reset();
+}
+
+void bDSP::reset() {
+  spc_dsp_soft_reset();
+}
+
+uint8 bDSP::read(uint8 addr) {
+  return spc_dsp_read(addr);
+}
+
+void bDSP::write(uint8 addr, uint8 data) {
+  spc_dsp_write(addr, data);
+}
+
+#define SPC_DSP_CUSTOM_RUN 1 //causes spc_dsp_run() to not be defined since it's huge and we don't need it
+#define SPC_DSP_OUT_HOOK(left, right) snes.audio_update(left, right);
+#include "spc_dsp.cpp"
+
+void bDSP::enter() { loop:
+#define PHASE(n) scheduler.addclocks_dsp(3);
+#include "spc_dsp_timing.h"
+  goto loop;
+}
+
+bDSP::bDSP() {}
+bDSP::~bDSP() {}
@@ -0,0 +1,10 @@
+class bDSP : public DSP { public:
+  void   enter();
+  uint8  read(uint8 addr);
+  void   write(uint8 addr, uint8 data);
+  void   power();
+  void   reset();
+
+  bDSP();
+  ~bDSP();
+};
@@ -0,0 +1,64 @@
+Overall operation
+-----------------
+This DSP emulator fundamentally emulates the different options the DSP
+performs on each clock. The pattern of operations repeats every 32
+clocks (except one minor detail, which repeats every 64 clocks instead).
+There are three main types of operations:
+
+- Miscellaneous processing
+- Voice processing
+- Echo processing
+
+Each is done over several clocks, and several operations are done on
+each clock. Each clock is defined as a separate function, then called
+from a large switch block in a loop.
+
+Many times a value is read on one clock but not used until a later
+clock, so many non-local temporary variables are used in the code to
+store these values. These are named with t_ to make it clear that they
+don't store long-term state.
+
+
+Circular buffers
+----------------
+Two circular buffers are used in the code (echo history and BRR decode).
+Both need efficient index-based access with wrap-around. Things are
+greatly simplified by repeating the contents of buffer twice, so instead
+of
+
+	0 1 2 3 4 5 6 7
+
+it stores
+
+	0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
+
+The position in this case would always be 0 to 7, so reading up to +8
+won't go outside buffer. This duplication is maintained by simply
+writing data twice when filling buffer:
+
+	0 1 2 3 4 # 6 7 0 1 2 3 4 # 6 7
+new data -----^---------------^
+
+No wrap checking needs to be done when writing either, since the above
+reasoning holds. When making a state snapshot, only the first copy needs
+to be saved. When restoring, simply duplicate the data twice.
+
+
+Code
+----
+- Currently all state is in static variables. They have either a t_ or
+m_ prefix to allow easy migration to a structure.
+
+- Static state that persists over several samples or more is prefixed
+with m_.
+
+- State which is temporary to the current sample is prefixed with t_.
+These are usually just overwritten with new data on the next sample.
+These generally correspond to temporaries/registers in actual DSP
+itself.
+
+- Minimal stdint.h included in case your system doesn't have one.
+
+
+-- 
+Shay Green <[email protected]>
@@ -0,0 +1,828 @@
+// http://www.slack.net/~ant/
+
+#include "spc_dsp.h"
+
+#include <limits.h>
+#include <string.h>
+
+/* Copyright (C) 2007 Shay Green. This module is free software; you
+can redistribute it and/or modify it under the terms of the GNU Lesser
+General Public License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version. This
+module is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+details. You should have received a copy of the GNU Lesser General Public
+License along with this module; if not, write to the Free Software Foundation,
+Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
+
+// Volume registers and efb are signed! Easy to forget int8_t cast.
+// Prefixes are to avoid accidental use of locals with same names.
+
+// Global registers
+enum {
+    r_mvoll = 0x0C, r_mvolr = 0x1C,
+    r_evoll = 0x2C, r_evolr = 0x3C,
+    r_kon   = 0x4C, r_koff  = 0x5C,
+    r_flg   = 0x6C, r_endx  = 0x7C,
+    r_efb   = 0x0D, r_pmon  = 0x2D,
+    r_non   = 0x3D, r_eon   = 0x4D,
+    r_dir   = 0x5D, r_esa   = 0x6D,
+    r_edl   = 0x7D,
+    r_fir   = 0x0F // 8 coefficients at 0x0F, 0x1F ... 0x7F
+};
+
+// Voice registers
+enum {
+	v_voll   = 0x00, v_volr   = 0x01,
+	v_pitchl = 0x02, v_pitchh = 0x03,
+	v_srcn   = 0x04, v_adsr0  = 0x05,
+	v_adsr1  = 0x06, v_gain   = 0x07,
+	v_envx   = 0x08, v_outx   = 0x09
+};
+
+// Internal envelope modes
+enum env_mode_t { env_release, env_attack, env_decay, env_sustain };
+
+// Internal voice state
+enum { brr_buf_size   = 12 };
+enum { brr_block_size =  9 };
+typedef struct voice_t
+{
+	int buf [brr_buf_size*2];// decoded samples (twice the size to simplify wrap handling)
+	int buf_pos;            // place in buffer where next samples will be decoded
+	int interp_pos;         // relative fractional position in sample (0x1000 = 1.0)
+	int brr_addr;           // address of current BRR block
+	int brr_offset;         // current decoding offset in BRR block
+	uint8_t* regs;          // pointer to voice's DSP registers
+	int vbit;               // bitmask for voice: 0x01 for voice 0, 0x02 for voice 1, etc.
+	int kon_delay;          // KON delay/current setup phase
+	enum env_mode_t env_mode;
+	int env;                // current envelope level
+	int t_envx_out;
+	int hidden_env;         // used by GAIN mode 7, very obscure quirk
+} voice_t;
+
+static voice_t m_voice_state [spc_dsp_voice_count];
+static uint8_t* m_ram; // 64K shared RAM between DSP and SMP
+spc_dsp_t m_spc_dsp;
+spc_dsp_sample_t* m_spc_dsp_out_begin;
+spc_dsp_sample_t* m_spc_dsp_out;
+spc_dsp_sample_t* m_spc_dsp_out_end;
+
+// "Member" access
+#define m           m_spc_dsp
+
+// Access global DSP register
+#define REG(n)      m.regs [r_##n]
+
+// Access voice DSP register
+#define VREG(r,n)   r [v_##n]
+
+// if ( io < -32768 ) io = -32768;
+// if ( io >  32767 ) io =  32767;
+#define CLAMP16( io )\
+{\
+	if ( (int16_t) io != io )\
+		io = 0x7FFF ^ (io >> 31);\
+}
+
+// Gaussian interpolation
+
+static short const gauss [512] =
+{
+   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
+   1,   1,   1,   1,   1,   1,   1,   1,   1,   1,   1,   2,   2,   2,   2,   2,
+   2,   2,   3,   3,   3,   3,   3,   4,   4,   4,   4,   4,   5,   5,   5,   5,
+   6,   6,   6,   6,   7,   7,   7,   8,   8,   8,   9,   9,   9,  10,  10,  10,
+  11,  11,  11,  12,  12,  13,  13,  14,  14,  15,  15,  15,  16,  16,  17,  17,
+  18,  19,  19,  20,  20,  21,  21,  22,  23,  23,  24,  24,  25,  26,  27,  27,
+  28,  29,  29,  30,  31,  32,  32,  33,  34,  35,  36,  36,  37,  38,  39,  40,
+  41,  42,  43,  44,  45,  46,  47,  48,  49,  50,  51,  52,  53,  54,  55,  56,
+  58,  59,  60,  61,  62,  64,  65,  66,  67,  69,  70,  71,  73,  74,  76,  77,
+  78,  80,  81,  83,  84,  86,  87,  89,  90,  92,  94,  95,  97,  99, 100, 102,
+ 104, 106, 107, 109, 111, 113, 115, 117, 118, 120, 122, 124, 126, 128, 130, 132,
+ 134, 137, 139, 141, 143, 145, 147, 150, 152, 154, 156, 159, 161, 163, 166, 168,
+ 171, 173, 175, 178, 180, 183, 186, 188, 191, 193, 196, 199, 201, 204, 207, 210,
+ 212, 215, 218, 221, 224, 227, 230, 233, 236, 239, 242, 245, 248, 251, 254, 257,
+ 260, 263, 267, 270, 273, 276, 280, 283, 286, 290, 293, 297, 300, 304, 307, 311,
+ 314, 318, 321, 325, 328, 332, 336, 339, 343, 347, 351, 354, 358, 362, 366, 370,
+ 374, 378, 381, 385, 389, 393, 397, 401, 405, 410, 414, 418, 422, 426, 430, 434,
+ 439, 443, 447, 451, 456, 460, 464, 469, 473, 477, 482, 486, 491, 495, 499, 504,
+ 508, 513, 517, 522, 527, 531, 536, 540, 545, 550, 554, 559, 563, 568, 573, 577,
+ 582, 587, 592, 596, 601, 606, 611, 615, 620, 625, 630, 635, 640, 644, 649, 654,
+ 659, 664, 669, 674, 678, 683, 688, 693, 698, 703, 708, 713, 718, 723, 728, 732,
+ 737, 742, 747, 752, 757, 762, 767, 772, 777, 782, 787, 792, 797, 802, 806, 811,
+ 816, 821, 826, 831, 836, 841, 846, 851, 855, 860, 865, 870, 875, 880, 884, 889,
+ 894, 899, 904, 908, 913, 918, 923, 927, 932, 937, 941, 946, 951, 955, 960, 965,
+ 969, 974, 978, 983, 988, 992, 997,1001,1005,1010,1014,1019,1023,1027,1032,1036,
+1040,1045,1049,1053,1057,1061,1066,1070,1074,1078,1082,1086,1090,1094,1098,1102,
+1106,1109,1113,1117,1121,1125,1128,1132,1136,1139,1143,1146,1150,1153,1157,1160,
+1164,1167,1170,1174,1177,1180,1183,1186,1190,1193,1196,1199,1202,1205,1207,1210,
+1213,1216,1219,1221,1224,1227,1229,1232,1234,1237,1239,1241,1244,1246,1248,1251,
+1253,1255,1257,1259,1261,1263,1265,1267,1269,1270,1272,1274,1275,1277,1279,1280,
+1282,1283,1284,1286,1287,1288,1290,1291,1292,1293,1294,1295,1296,1297,1297,1298,
+1299,1300,1300,1301,1302,1302,1303,1303,1303,1304,1304,1304,1304,1304,1305,1305,
+};
+
+static inline int interpolate( voice_t const* const v )
+{
+	// Make pointers into gaussian based on fractional position between samples
+	int offset = v->interp_pos >> 4 & 0xFF;
+	short const* fwd = gauss + 255 - offset;
+	short const* rev = gauss       + offset; // mirror left half of gaussian
+	
+	int const* in = &v->buf [(v->interp_pos >> 12) + v->buf_pos];
+	int out;
+	out  = (fwd [  0] * in [0]) >> 11;
+	out += (fwd [256] * in [1]) >> 11;
+	out += (rev [256] * in [2]) >> 11;
+	out = (int16_t) out;
+	out += (rev [  0] * in [3]) >> 11;
+	
+	CLAMP16( out );
+	out &= ~1;
+	return out;
+}
+
+
+//// Counters
+
+enum { simple_counter_range = 2048 * 5 * 3 }; // 30720
+
+static unsigned short const counter_rates [32] =
+{
+   simple_counter_range + 1, // never fires
+          2048, 1536,
+	1280, 1024,  768,
+	 640,  512,  384,
+	 320,  256,  192,
+	 160,  128,   96,
+	  80,   64,   48,
+	  40,   32,   24,
+	  20,   16,   12,
+	  10,    8,    6,
+	   5,    4,    3,
+	         2,
+	         1
+};
+
+static unsigned short const counter_offsets [32] =
+{
+	  1, 0, 1040,
+	536, 0, 1040,
+	536, 0, 1040,
+	536, 0, 1040,
+	536, 0, 1040,
+	536, 0, 1040,
+	536, 0, 1040,
+	536, 0, 1040,
+	536, 0, 1040,
+	536, 0, 1040,
+	     0,
+	     0
+};
+
+static inline void init_counters( void ) { }
+
+static inline void run_counters( void )
+{
+	if ( --m.counter < 0 )
+		m.counter = simple_counter_range - 1;
+}
+
+static inline unsigned read_counter( int rate )
+{
+	return ((unsigned) m.counter + counter_offsets [rate]) % counter_rates [rate];
+}
+
+
+//// Envelope
+
+static inline void run_envelope( voice_t* const v )
+{
+	int env = v->env;
+	if ( v->env_mode == env_release ) // 60%
+	{
+		if ( (env -= 0x8) < 0 )
+			env = 0;
+		v->env = env;
+	}
+	else
+	{
+		int rate;
+		int env_data = VREG(v->regs,adsr1);
+		if ( m.t_adsr0 & 0x80 ) // 99% ADSR
+		{
+			if ( v->env_mode >= env_decay ) // 99%
+			{
+				env--;
+				env -= env >> 8;
+				rate = env_data & 0x1F;
+				if ( v->env_mode == env_decay ) // 1%
+					rate = (m.t_adsr0 >> 3 & 0x0E) + 0x10;
+			}
+			else // env_attack
+			{
+				rate = (m.t_adsr0 & 0x0F) * 2 + 1;
+				env += rate < 31 ? 0x20 : 0x400;
+			}
+		}
+		else // GAIN
+		{
+			env_data = VREG(v->regs,gain);
+			int mode = env_data >> 5;
+			if ( mode < 4 ) // direct
+			{
+				env = env_data * 0x10;
+				rate = 31;
+			}
+			else
+			{
+				rate = env_data & 0x1F;
+				if ( mode == 4 ) // 4: linear decrease
+				{
+					env -= 0x20;
+				}
+				else if ( mode < 6 ) // 5: exponential decrease
+				{
+					env--;
+					env -= env >> 8;
+				}
+				else // 6,7: linear increase
+				{
+					env += 0x20;
+					if ( mode > 6 && (unsigned) v->hidden_env >= 0x600 )
+						env += 0x8 - 0x20; // 7: two-slope linear increase
+				}
+			}
+		}
+		
+		// Sustain level
+		if ( (env >> 8) == (env_data >> 5) && v->env_mode == env_decay )
+			v->env_mode = env_sustain;
+		
+		v->hidden_env = env;
+		
+		// unsigned cast because linear decrease going negative also triggers this
+		if ( (unsigned) env > 0x7FF )
+		{
+			env = (env < 0 ? 0 : 0x7FF);
+			if ( v->env_mode == env_attack )
+				v->env_mode = env_decay;
+		}
+		
+		if ( !read_counter( rate ) )
+			v->env = env; // nothing else is controlled by the counter
+	}
+}
+
+
+//// BRR Decoding
+
+static inline void decode_brr( voice_t* v )
+{
+	// Arrange the four input nybbles in 0xABCD order for easy decoding
+	int nybbles = m.t_brr_byte * 0x100 + m_ram [(v->brr_addr + v->brr_offset + 1) & 0xFFFF];
+	
+	int const header = m.t_brr_header;
+	
+	// 0: >>1  1: <<0  2: <<1 ... 12: <<11  13-15: >>4 <<11
+	static unsigned char const shifts [16 * 2] = {
+		13,12,12,12,12,12,12,12,12,12,12, 12, 12, 16, 16, 16,
+		 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 11, 11, 11
+	};
+	int const scale = header >> 4;
+	int const right_shift = shifts [scale];
+	int const left_shift  = shifts [scale + 16];
+	
+	// Write to next four samples in circular buffer
+	int* pos = &v->buf [v->buf_pos];
+	if ( (v->buf_pos += 4) >= brr_buf_size )
+		v->buf_pos = 0;
+	
+	// Decode four samples
+	for ( int* end = pos + 4; pos < end; pos++ )
+	{
+		// Extract upper nybble and scale appropriately
+		int s = ((int16_t) nybbles >> right_shift) << left_shift;
+		nybbles <<= 4;
+		
+		// Apply IIR filter (8 is the most commonly used)
+		int const filter = header & 0x0C;
+		int const p1 = pos [brr_buf_size - 1];
+		int const p2 = pos [brr_buf_size - 2] >> 1;
+		if ( filter >= 8 )
+		{
+			s += p1;
+			s -= p2;
+			if ( filter == 8 ) // s += p1 * 0.953125 - p2 * 0.46875
+			{
+				s += p2 >> 4;
+				s += (p1 * -3) >> 6;
+			}
+			else // s += p1 * 0.8984375 - p2 * 0.40625
+			{
+				s += (p1 * -13) >> 7;
+				s += (p2 * 3) >> 4;
+			}
+		}
+		else if ( filter ) // s += p1 * 0.46875
+		{
+			s += p1 >> 1;
+			s += (-p1) >> 5;
+		}
+		
+		// Adjust and write sample
+		CLAMP16( s );
+		s = (int16_t) (s * 2);
+		pos [brr_buf_size] = pos [0] = s; // second copy simplifies wrap-around
+	}
+}
+
+
+//// Misc
+
+#define MISC_CLOCK( n ) inline static void misc_##n( void )
+
+MISC_CLOCK( 27 )
+{
+	m.t_pmon = REG(pmon) & 0xFE; // voice 0 doesn't support PMON
+}
+MISC_CLOCK( 28 )
+{
+	m.t_non = REG(non);
+	m.t_eon = REG(eon);
+	m.t_dir = REG(dir);
+}
+MISC_CLOCK( 29 )
+{
+	if ( (m.every_other_sample ^= 1) != 0 )
+		m.new_kon &= ~m.kon; // clears KON 63 clocks after it was last read
+}
+MISC_CLOCK( 30 )
+{
+	if ( m.every_other_sample )
+	{
+		m.kon    = m.new_kon;
+		m.t_koff = REG(koff) | m.mute_mask; 
+	}
+	
+	run_counters();
+	
+	// Noise
+	if ( !read_counter( REG(flg) & 0x1F ) )
+	{
+		int feedback = (m.noise << 13) ^ (m.noise << 14);
+		m.noise = (feedback & 0x4000) ^ (m.noise >> 1);
+	}
+}
+
+
+//// Voices
+
+#define VOICE_CLOCK( n ) static void voice_##n( voice_t* const v )
+
+inline VOICE_CLOCK( V1 )
+{
+	m.t_dir_addr = m.t_dir * 0x100 + m.t_srcn * 4;
+	m.t_srcn = VREG(v->regs,srcn);
+}
+inline VOICE_CLOCK( V2 )
+{
+	// Read sample pointer (ignored if not needed)
+	uint8_t const* entry = &m_ram [m.t_dir_addr];
+	if ( !v->kon_delay )
+		entry += 2;
+	m.t_brr_next_addr = entry [1] * 0x100 + entry [0];
+	
+	m.t_adsr0 = VREG(v->regs,adsr0);
+	
+	// Read pitch, spread over two clocks
+	m.t_pitch = VREG(v->regs,pitchl);
+}
+inline VOICE_CLOCK( V3a )
+{
+	m.t_pitch += (VREG(v->regs,pitchh) & 0x3F) << 8;
+}
+inline VOICE_CLOCK( V3b )
+{
+	// Read BRR header and byte
+	m.t_brr_byte   = m_ram [(v->brr_addr + v->brr_offset) & 0xFFFF];
+	m.t_brr_header = m_ram [v->brr_addr]; // brr_addr doesn't need masking
+}
+VOICE_CLOCK( V3c )
+{
+	// Pitch modulation using previous voice's output
+	if ( m.t_pmon & v->vbit )
+		m.t_pitch += ((m.t_output >> 5) * m.t_pitch) >> 10;
+	
+	if ( v->kon_delay )
+	{
+		// Get ready to start BRR decoding on next sample
+		if ( v->kon_delay == 5 )
+		{
+			v->brr_addr    = m.t_brr_next_addr;
+			v->brr_offset  = 1;
+			v->buf_pos     = 0;
+			m.t_brr_header = 0; // header is ignored on this sample
+		}
+		
+		// Envelope is never run during KON
+		v->env        = 0;
+		v->hidden_env = 0;
+		
+		// Disable BRR decoding until last three samples
+		v->interp_pos = 0;
+		if ( --v->kon_delay & 3 )
+			v->interp_pos = 0x4000;
+		
+		// Pitch is never added during KON
+		m.t_pitch = 0;
+	}
+	
+	// Gaussian interpolation
+	int output = interpolate( v );
+	
+	// Noise
+	if ( m.t_non & v->vbit )
+		output = (int16_t) (m.noise * 2);
+	
+	// Apply envelope
+	m.t_output = (output * v->env) >> 11 & ~1;
+	v->t_envx_out = v->env >> 4;
+	
+	// Immediate silence due to end of sample or soft reset
+	if ( REG(flg) & 0x80 || (m.t_brr_header & 3) == 1 )
+	{
+		v->env_mode = env_release;
+		v->env      = 0;
+	}
+	
+	if ( m.every_other_sample )
+	{
+		// KOFF
+		if ( m.t_koff & v->vbit )
+			v->env_mode = env_release;
+		
+		// KON
+		if ( m.kon & v->vbit )
+		{
+			v->kon_delay = 5;
+			v->env_mode  = env_attack;
+		}
+	}
+	
+	// Run envelope for next sample
+	if ( !v->kon_delay )
+		run_envelope( v );
+}
+static inline void voice_output( voice_t const* v, int ch )
+{
+	// Apply left/right volume
+	int amp = (m.t_output * (int8_t) VREG(v->regs,voll + ch)) >> 7;
+	
+	// Add to output total
+	m.t_main_out [ch] += amp;
+	CLAMP16( m.t_main_out [ch] );
+	
+	// Optionally add to echo total
+	if ( m.t_eon & v->vbit )
+	{
+		m.t_echo_out [ch] += amp;
+		CLAMP16( m.t_echo_out [ch] );
+	}
+}
+VOICE_CLOCK( V4 )
+{
+	// Decode BRR
+	m.t_looped = 0;
+	if ( v->interp_pos >= 0x4000 )
+	{
+		decode_brr( v );
+		
+		if ( (v->brr_offset += 2) >= brr_block_size )
+		{
+			// Start decoding next BRR block
+			assert( v->brr_offset == brr_block_size );
+			v->brr_addr = (v->brr_addr + brr_block_size) & 0xFFFF;
+			if ( m.t_brr_header & 1 )
+			{
+				v->brr_addr = m.t_brr_next_addr;
+				m.t_looped = v->vbit;
+			}
+			v->brr_offset = 1;
+		}
+	}
+	
+	// Apply pitch
+	v->interp_pos = (v->interp_pos & 0x3FFF) + m.t_pitch;
+	
+	// Keep from getting too far ahead (when using pitch modulation)
+	if ( v->interp_pos > 0x7FFF )
+		v->interp_pos = 0x7FFF;
+	
+	// Output left
+	voice_output( v, 0 );
+}
+inline VOICE_CLOCK( V5 )
+{
+	// Output right
+	voice_output( v, 1 );
+	
+	// ENDX, OUTX, and ENVX won't update if you wrote to them 1-2 clocks earlier
+	
+	m.endx_buf = REG(endx) | m.t_looped;
+	
+	// Clear bit in ENDX if KON just began
+	if ( v->kon_delay == 5 )
+		m.endx_buf &= ~v->vbit;
+}
+inline VOICE_CLOCK( V6 )
+{
+	m.outx_buf = m.t_output >> 8;
+}
+inline VOICE_CLOCK( V7 )
+{
+	// Update ENDX
+	REG(endx) = (uint8_t) m.endx_buf;
+	
+	m.envx_buf = v->t_envx_out;
+}
+inline VOICE_CLOCK( V8 )
+{
+	// Update OUTX
+	VREG(v->regs,outx) = (uint8_t) m.outx_buf;
+}
+inline VOICE_CLOCK( V9 )
+{
+	// Update ENVX
+	VREG(v->regs,envx) = (uint8_t) m.envx_buf;
+}
+
+// Most voices do all these in one clock, so make a handy composite
+inline VOICE_CLOCK( V3 )
+{
+	voice_V3a( v );
+	voice_V3b( v );
+	voice_V3c( v );
+}
+
+// Common combinations of voice steps on different voices. This greatly reduces
+// code size and allows everything to be inlined in these functions.
+VOICE_CLOCK(V7_V4_V1) { voice_V7(v); voice_V1(v+3); voice_V4(v+1); }
+VOICE_CLOCK(V8_V5_V2) { voice_V8(v); voice_V5(v+1); voice_V2(v+2); }
+VOICE_CLOCK(V9_V6_V3) { voice_V9(v); voice_V6(v+1); voice_V3(v+2); }
+
+
+//// Echo
+
+// Current echo buffer pointer for left/right channel
+#define ECHO_PTR( ch )      (&m_ram [m.t_echo_ptr + ch * 2])
+
+// Sample in echo history buffer, where 0 is the oldest
+#define ECHO_FIR( i )       (m.echo_hist_pos [i])
+
+// Calculate FIR point for left/right channel
+#define CALC_FIR( i, ch )   ((ECHO_FIR( i + 1 ) [ch] * (int8_t) REG(fir + i * 0x10)) >> 6)
+
+#define ECHO_CLOCK( n ) inline static void echo_##n( void )
+
+static inline void echo_read( int ch )
+{
+	uint8_t const* in = ECHO_PTR( ch );
+	int s = (int8_t) in [1] * 0x100 + in [0];
+	// second copy simplifies wrap-around handling
+	ECHO_FIR( 0 ) [ch] = ECHO_FIR( 8 ) [ch] = s >> 1;
+}
+
+ECHO_CLOCK( 22 )
+{
+	// History
+	if ( ++m.echo_hist_pos >= &m.echo_hist [spc_dsp_echo_hist_size] )
+		m.echo_hist_pos = m.echo_hist;
+	
+	m.t_echo_ptr = (m.t_esa * 0x100 + m.echo_offset) & 0xFFFF;
+	echo_read( 0 );
+	
+	// FIR (using l and r temporaries below helps compiler optimize)
+	int l = CALC_FIR( 0, 0 );
+	int r = CALC_FIR( 0, 1 );
+	
+	m.t_echo_in [0] = l;
+	m.t_echo_in [1] = r;
+}
+ECHO_CLOCK( 23 )
+{
+	int l = CALC_FIR( 1, 0 ) + CALC_FIR( 2, 0 );
+	int r = CALC_FIR( 1, 1 ) + CALC_FIR( 2, 1 );
+	
+	m.t_echo_in [0] += l;
+	m.t_echo_in [1] += r;
+	
+	echo_read( 1 );
+}
+ECHO_CLOCK( 24 )
+{
+	int l = CALC_FIR( 3, 0 ) + CALC_FIR( 4, 0 ) + CALC_FIR( 5, 0 );
+	int r = CALC_FIR( 3, 1 ) + CALC_FIR( 4, 1 ) + CALC_FIR( 5, 1 );
+	
+	m.t_echo_in [0] += l;
+	m.t_echo_in [1] += r;
+}
+ECHO_CLOCK( 25 )
+{
+	int l = m.t_echo_in [0] + CALC_FIR( 6, 0 );
+	int r = m.t_echo_in [1] + CALC_FIR( 6, 1 );
+	
+	l = (int16_t) l;
+	r = (int16_t) r;
+	
+	l += (int16_t) CALC_FIR( 7, 0 );
+	r += (int16_t) CALC_FIR( 7, 1 );
+	
+	CLAMP16( l );
+	CLAMP16( r );
+	
+	m.t_echo_in [0] = l & ~1;
+	m.t_echo_in [1] = r & ~1;
+}
+static inline int echo_output( int ch )
+{
+	int out = (int16_t) ((m.t_main_out [ch] * (int8_t) REG(mvoll + ch * 0x10)) >> 7) +
+			(int16_t) ((m.t_echo_in [ch] * (int8_t) REG(evoll + ch * 0x10)) >> 7);
+	CLAMP16( out );
+	return out;
+}
+ECHO_CLOCK( 26 )
+{
+	// Left output volumes
+	// (save sample for next clock so we can output both together)
+	m.t_main_out [0] = echo_output( 0 );
+	
+	// Echo feedback
+	int l = m.t_echo_out [0] + (int16_t) ((m.t_echo_in [0] * (int8_t) REG(efb)) >> 7);
+	int r = m.t_echo_out [1] + (int16_t) ((m.t_echo_in [1] * (int8_t) REG(efb)) >> 7);
+	
+	CLAMP16( l );
+	CLAMP16( r );
+	
+	m.t_echo_out [0] = l & ~1;
+	m.t_echo_out [1] = r & ~1;
+}
+ECHO_CLOCK( 27 )
+{
+	// Output
+	int outl = m.t_main_out [0];
+	int outr = echo_output( 1 );
+	m.t_main_out [0] = 0;
+	m.t_main_out [1] = 0;
+	
+	// TODO: global muting isn't this simple (turns DAC on and off
+	// or something, causing small ~37-sample pulse when first muted)
+	if ( REG(flg) & 0x40 )
+	{
+		outl = 0;
+		outr = 0;
+	}
+	
+	// Output sample to DAC
+	#ifdef SPC_DSP_OUT_HOOK
+		SPC_DSP_OUT_HOOK( outl, outr );
+	#else
+		spc_dsp_sample_t* out = m_spc_dsp_out;
+		assert( !out || out < m_spc_dsp_out_end ); // fails if output buffer is too small
+		if ( out != m_spc_dsp_out_end )
+		{
+			out [0] = outl;
+			out [1] = outr;
+			m_spc_dsp_out = out + 2;
+		}
+	#endif
+}
+ECHO_CLOCK( 28 )
+{
+	m.t_echo_enabled = REG(flg);
+}
+static inline void echo_write( int ch )
+{
+	if ( !(m.t_echo_enabled & 0x20) )
+	{
+		uint8_t* out = ECHO_PTR( ch );
+		int s = m.t_echo_out [ch];
+		out [0] = (uint8_t) s;
+		out [1] = (uint8_t) (s >> 8);
+	}
+	m.t_echo_out [ch] = 0;
+}
+ECHO_CLOCK( 29 )
+{
+	m.t_esa = REG(esa);
+	
+	if ( !m.echo_offset )
+		m.echo_length = (REG(edl) & 0x0F) * 0x800;
+	
+	m.echo_offset += 4;
+	if ( m.echo_offset >= m.echo_length )
+		m.echo_offset = 0;
+	
+	// Write left echo
+	echo_write( 0 );
+	
+	m.t_echo_enabled = REG(flg);
+}
+ECHO_CLOCK( 30 )
+{
+	// Write right echo
+	echo_write( 1 );
+}
+
+
+//// Timing
+
+#if !SPC_DSP_CUSTOM_RUN
+
+void spc_dsp_run( int clocks_remain )
+{
+	assert( clocks_remain > 0 );
+	
+	int const phase = m.phase;
+	m.phase = (phase + clocks_remain) & 31;
+	switch ( phase )
+	{
+	loop:
+	
+		#define PHASE( n ) if ( n && !--clocks_remain ) break; case n:
+		#include "spc_dsp_timing.h"
+		#undef PHASE
+	
+		if ( --clocks_remain )
+			goto loop;
+	}
+}
+
+#endif
+
+
+//// Setup
+
+void spc_dsp_reset( void )
+{
+	// Clear everything to zero, then set things which must be non-zero
+	memset( m_voice_state, 0, sizeof m_voice_state );
+	memset( &m_spc_dsp,    0, sizeof m_spc_dsp );
+	
+	m.noise              = 1;
+	m.echo_hist_pos      = m.echo_hist;
+	m.every_other_sample = 1;
+	init_counters();
+	
+	int i;
+	for ( i = spc_dsp_voice_count; --i >= 0; )
+	{
+		voice_t* v = &m_voice_state [i];
+		v->regs       = &m.regs [i * 0x10];
+		v->vbit       = 1 << i;
+		v->brr_offset = 1;
+	}
+	
+	REG(flg) = 0xE0;
+}
+
+void spc_dsp_soft_reset( void )
+{
+	// TODO: doesn't reset everything
+	spc_dsp_reset();
+}
+
+void spc_dsp_init( void* ram_64k )
+{
+	m_ram = (uint8_t*) ram_64k;
+	spc_dsp_reset();
+	
+	#if INT_MAX < 0x7FFFFFFF
+		#error "Requires that int have at least 32 bits"
+	#endif
+	
+	#ifndef NDEBUG
+		// be sure this sign-extends
+		assert( (int16_t) 0x8000 == -0x8000 );
+		
+		// be sure right shift preserves sign
+		assert( (-1 >> 1) == -1 );
+		
+		// check clamp macro
+		int i;
+		i = +0x8000; CLAMP16( i ); assert( i == +0x7FFF );
+		i = -0x8001; CLAMP16( i ); assert( i == -0x8000 );
+	#endif
+}
+
+void spc_dsp_load( uint8_t const regs [spc_dsp_register_count] )
+{
+	int i;
+	for ( i = 0; i < 0x80; i++ )
+		spc_dsp_write( i, regs [i] );
+	m.t_esa = regs [r_esa];
+	m.t_dir = regs [r_dir];
+}
@@ -0,0 +1,162 @@
+// SNES SPC-700 DSP emulator
+
+#ifndef SPC_DSP_H
+#define SPC_DSP_H
+
+#include <assert.h>
+#include <stdint.h>
+
+//// Setup
+
+// Initializes DSP and has it use the 64K RAM provided
+void spc_dsp_init( void* ram_64k );
+
+// Restores DSP registers using supplied values
+enum { spc_dsp_register_count = 128 };
+void spc_dsp_load( uint8_t const regs [spc_dsp_register_count] );
+
+// Mutes voice n if bit 1<<b is set
+enum { spc_dsp_voice_count = 8 };
+static void spc_dsp_mute_voices( int mask );
+
+// Sets destination for output samples. If out is NULL or out_size is 0,
+// doesn't generate any.
+typedef short spc_dsp_sample_t;
+static void spc_dsp_set_output( spc_dsp_sample_t* out, int out_size );
+
+// Number of samples written to output since it was last set, always
+// a multiple of 2
+static int spc_dsp_sample_count( void );
+
+
+//// Emulation
+
+// Resets DSP to power-on state. Does not affect anything set by above functions.
+void spc_dsp_reset( void );
+
+// Emulates pressing reset switch on SNES
+void spc_dsp_soft_reset( void );
+
+// Reads/writes DSP registers. For accuracy, you must first call spc_run_dsp()
+// to catch the DSP up to present.
+static int spc_dsp_read( int addr );
+static void spc_dsp_write( int addr, int data );
+
+// Runs DSP for specified number of clocks (~1024000 per second). Every 32 clocks
+// a pair of samples will be generated.
+void spc_dsp_run( int clock_count );
+
+
+//// private
+
+enum { spc_dsp_echo_hist_size = 8 };
+
+extern spc_dsp_sample_t* m_spc_dsp_out_begin;
+extern spc_dsp_sample_t* m_spc_dsp_out;
+extern spc_dsp_sample_t* m_spc_dsp_out_end;
+
+typedef struct spc_dsp_t
+{
+	uint8_t regs [spc_dsp_register_count];
+	
+	// Echo history keeps most recent 8 samples (twice the size to simplify wrap handling)
+	int echo_hist [spc_dsp_echo_hist_size * 2] [2];
+	int (*echo_hist_pos) [2]; // &echo_hist [0 to 7]
+	int mute_mask;
+	
+	int every_other_sample; // toggles every sample
+	int kon;                // KON value when last checked
+	int noise;
+	int counter;
+	int echo_offset;        // offset from ESA in echo buffer
+	int echo_length;        // number of bytes that echo_offset will stop at
+	int phase;              // next clock cycle to run (0-31)
+	
+	// Hidden registers also written to when main register is written to
+	int new_kon;
+	int endx_buf;
+	int envx_buf;
+	int outx_buf;
+	
+	// Temporary state between clocks
+	
+	// read once per sample
+	int t_pmon;
+	int t_non;
+	int t_eon;
+	int t_dir;
+	int t_koff;
+	
+	// read a few clocks ahead then used
+	int t_brr_next_addr;
+	int t_adsr0;
+	int t_brr_header;
+	int t_brr_byte;
+	int t_srcn;
+	int t_esa;
+	int t_echo_enabled;
+	
+	// internal state that is recalculated every sample
+	int t_dir_addr;
+	int t_pitch;
+	int t_output;
+	int t_looped;
+	int t_echo_ptr;
+	
+	// left/right sums
+	int t_main_out [2];
+	int t_echo_out [2];
+	int t_echo_in  [2];
+	
+} spc_dsp_t;
+extern spc_dsp_t m_spc_dsp;
+
+static inline int spc_dsp_read( int addr )
+{
+	assert( (unsigned) addr < spc_dsp_register_count );
+	return m_spc_dsp.regs [addr];
+}
+
+static inline void spc_dsp_write( int addr, int data )
+{
+	assert( (unsigned) addr < spc_dsp_register_count );
+	
+	m_spc_dsp.regs [addr] = data;
+	switch ( addr & 0x0F )
+	{
+	case 0x08:
+		m_spc_dsp.envx_buf = data;
+		break;
+		
+	case 0x09:
+		m_spc_dsp.outx_buf = data;
+		break;
+	
+	case 0x0C:
+		if ( addr == 0x4C ) // KON
+			m_spc_dsp.new_kon = data;
+		
+		if ( addr == 0x7C ) // ENDX, write always clears it regardless of data
+		{
+			m_spc_dsp.endx_buf = 0;
+			m_spc_dsp.regs [0x7C] = 0;
+		}
+		break;
+	}
+}
+
+static inline void spc_dsp_mute_voices( int mask ) { m_spc_dsp.mute_mask = mask; }
+
+static inline void spc_dsp_set_output( spc_dsp_sample_t* out, int out_size )
+{
+	assert( out_size % 2 == 0 ); // must be even
+	m_spc_dsp_out_begin = out;
+	m_spc_dsp_out       = out;
+	if ( out )
+		out += out_size;
+	m_spc_dsp_out_end   = out;
+}
+
+static inline int spc_dsp_sample_count( void ) { return m_spc_dsp_out - m_spc_dsp_out_begin; }
+
+#endif
@@ -0,0 +1,46 @@
+// Execute clock for a particular voice
+#define V( clock, voice )   voice_##clock( &m_voice_state [voice] );
+
+/* The most common sequence of clocks uses composite operations
+for efficiency. For example, the following are equivalent to the
+individual steps on the right:
+
+V(2_31  ,2) -> V( 2,2) V(31,3)
+V(3_0_29,2) -> V( 3,2) V( 0,3) V(29,4)
+V(4_1_30,2) -> V( 4,2) V( 1,3) V(30,4) */
+
+// Voice      0      1      2      3      4      5      6      7
+PHASE( 0)  V(V5,0)V(V2,1)
+PHASE( 1)  V(V6,0)V(V3,1)
+PHASE( 2)  V(V7_V4_V1,0)
+PHASE( 3)  V(V8_V5_V2,0)
+PHASE( 4)  V(V9_V6_V3,0)
+PHASE( 5)         V(V7_V4_V1,1)
+PHASE( 6)         V(V8_V5_V2,1)
+PHASE( 7)         V(V9_V6_V3,1)
+PHASE( 8)                V(V7_V4_V1,2)
+PHASE( 9)                V(V8_V5_V2,2)
+PHASE(10)                V(V9_V6_V3,2)
+PHASE(11)                       V(V7_V4_V1,3)
+PHASE(12)                       V(V8_V5_V2,3)
+PHASE(13)                       V(V9_V6_V3,3)
+PHASE(14)                              V(V7_V4_V1,4)
+PHASE(15)                              V(V8_V5_V2,4)
+PHASE(16)                              V(V9_V6_V3,4)
+PHASE(17)  V(V1,0)                            V(V7,5)V(V4,6)
+PHASE(18)                                     V(V8_V5_V2,5)
+PHASE(19)                                     V(V9_V6_V3,5)
+PHASE(20)         V(V1,1)                            V(V7,6)V(V4,7)
+PHASE(21)                                            V(V8,6)V(V5,7)  V(V2,0) // t_brr_next_addr order dependency
+PHASE(22)  V(V3a,0)                                  V(V9,6)V(V6,7)  echo_22();
+PHASE(23)                                                   V(V7,7)  echo_23();
+PHASE(24)                                                   V(V8,7)  echo_24();
+PHASE(25)  V(V3b,0)                                         V(V9,7)  echo_25();
+PHASE(26)                                                            echo_26();
+PHASE(27) misc_27();                                                 echo_27();
+PHASE(28) misc_28();                                                 echo_28();
+PHASE(29) misc_29();                                                 echo_29();
+PHASE(30) misc_30();V(V3c,0)                                         echo_30();
+PHASE(31)  V(V4,0)       V(V1,2)
+
+#undef V
@@ -0,0 +1,43 @@
+// Byte order handling
+
+#ifndef SPC_ENDIAN_H
+#define SPC_ENDIAN_H
+
+//#include <stdint.h>
+
+static inline unsigned get_le16( void const* p )
+{
+	return  ((uint8_t const*) p) [1] * 0x100u +
+			((uint8_t const*) p) [0];
+}
+
+static inline int get_le16s( void const* p )
+{
+	return  ((int8_t const*) p) [1] * 0x100 +
+			((uint8_t const*) p) [0];
+}
+
+static inline void set_le16( void* p, unsigned n )
+{
+	((uint8_t*) p) [1] = (uint8_t) (n >> 8);
+	((uint8_t*) p) [0] = (uint8_t) n;
+}
+
+// *A versions are used where data is aligned
+// Sometimes BIG_ENDIAN is defined to 0x1234 or something, so treat values
+// other than 1 as false.
+#if BIG_ENDIAN != 1
+	#define GET_LE16A( addr )       (*(uint16_t const*) (addr))
+	#define GET_LE16SA( addr )      (*( int16_t const*) (addr))
+	#define SET_LE16A( addr, data ) (void) (*(uint16_t*) (addr) = (data))
+	
+#else
+	#define GET_LE16A( addr )       get_le16 ( addr )
+	#define GET_LE16SA( addr )      get_le16s( addr )
+	#define SET_LE16A( addr, data ) set_le16 ( addr, data )
+#endif
+
+#define GET_LE16( addr )        GET_LE16A( addr )
+#define SET_LE16( addr, data )  SET_LE16A( addr, data )
+
+#endif
@@ -1,11 +1,11 @@
-class DSP {
-public:
+class DSP { public:
+  virtual void   enter() = 0;
+
  virtual uint8  read (uint8 addr) = 0;
  virtual void   write(uint8 addr, uint8 data) = 0;

  virtual void   power() = 0;
  virtual void   reset() = 0;
-  virtual uint32 run()   = 0;

  DSP() {}
  virtual ~DSP() {}
				`@@ -0,0 +1 @@`
				`@make platform=win compiler=mingw32-gcc clean`