Update to bsnes v014 release.

This version adds speed regulation, greatly improves PPU rendering, and increases speed by ~30% over the previous version.
Changelog:
    - Rewrote offset-per-tile mode emulation, should be correct now. Fixes Chrono Trigger, Contra III, Tetris Attack, etc.
    - Fixed a bug with HDMA occuring during interrupts. Fixes Tales of Phantasia souond test screen
    - Updated compiler to Visual Studio 2005, and enabled profile guided optimizations
    - Added conditional compilation of debugging functions (faster without them)
    - Added conditional compilation of core classes as pointers (allowing polymorphism) or objects (allowing inlining). The latter results in a speed increase
    - Small fixes to BG and OAM rendering routines
    - Corrected sprite tile bounds wrapping
    - Corrected sprite rendering in hires video modes
    - Rewrote color add/sub routines, should be correct now. Fixes Illusion of Gaia menu, etc.
    - Optimized video blitting routines, will temporarilly break mixed video mode screenshots
    - Prevented selecting menu options via return key from being recognized as keypresses by the emulator
    - Added system speed regulation (60hz/NTSC or 50hz/PAL)! Many thanks to kode54, GIGO, and Richard Bannister for their assistance
I disabled the debugger and polymorphism, and enabled profile guided optimizations for this build, to maximize speed. The debugger and polymorphism can be re-enabled via uncommenting the respective #defines in src/base.h and recompiling, or bsnes v0.013 can be used. I may start releasing two separate builds in the future... not sure yet.

.gitignore

@@ -1,3 +0,0 @@
-purify/*.o
-purify/purify
-purify/analyze-gba

bsnes.cfg

@@ -0,0 +1,139 @@
+# Applies contrast adjust filter to video output when enabled
+# Works by lowering the brightness of darker colors,
+# while leaving brighter colors alone; thus reducing saturation
+# (default = true)
+snes.video_color_curve = true
+
+# Selects color adjustment filter for video output
+#   0 = Normal (no filter, rgb555)
+#   1 = Grayscale mode (l5)
+#   2 = VGA mode (rgb332)
+#   3 = Genesis mode (rgb333)
+# (default = 0)
+snes.video_color_adjust_mode = 0
+
+# Mutes SNES audio output when enabled
+# (default = true)
+snes.mute = false
+
+# Regulate speed to 60hz (NTSC) / 50hz (PAL)
+# (default = true)
+system.regulate_speed = true
+
+# Video mode
+#   0 = 256x224w
+#   1 = 512x448w
+#   2 = 960x720w
+#   3 = 640x480f
+#   4 = 1024x768f
+# (default = 1)
+video.mode = 1
+
+# Use Video RAM instead of System RAM
+# (default = true)
+video.use_vram = true
+
+# Wait for vertical retrace when updating screen
+# (default = false)
+video.vblank = false
+
+# Show framerate in window title
+# (default = true)
+gui.show_fps = true
+
+# Joypad1 up
+# (default = 0x26)
+input.joypad1.up = 0x26
+
+# Joypad1 down
+# (default = 0x28)
+input.joypad1.down = 0x28
+
+# Joypad1 left
+# (default = 0x25)
+input.joypad1.left = 0x25
+
+# Joypad1 right
+# (default = 0x27)
+input.joypad1.right = 0x27
+
+# Joypad1 A
+# (default = 0x58)
+input.joypad1.a = 0x58
+
+# Joypad1 B
+# (default = 0x5a)
+input.joypad1.b = 0x5a
+
+# Joypad1 X
+# (default = 0x53)
+input.joypad1.x = 0x53
+
+# Joypad1 Y
+# (default = 0x41)
+input.joypad1.y = 0x41
+
+# Joypad1 L
+# (default = 0x44)
+input.joypad1.l = 0x44
+
+# Joypad1 R
+# (default = 0x43)
+input.joypad1.r = 0x43
+
+# Joypad1 select
+# (default = 0x10)
+input.joypad1.select = 0x10
+
+# Joypad1 start
+# (default = 0xd)
+input.joypad1.start = 0xd
+
+# Joypad2 up
+# (default = 0x54)
+input.joypad2.up = 0x54
+
+# Joypad2 down
+# (default = 0x47)
+input.joypad2.down = 0x47
+
+# Joypad2 left
+# (default = 0x46)
+input.joypad2.left = 0x46
+
+# Joypad2 right
+# (default = 0x48)
+input.joypad2.right = 0x48
+
+# Joypad2 A
+# (default = 0x4b)
+input.joypad2.a = 0x4b
+
+# Joypad2 B
+# (default = 0x4a)
+input.joypad2.b = 0x4a
+
+# Joypad2 X
+# (default = 0x49)
+input.joypad2.x = 0x49
+
+# Joypad2 Y
+# (default = 0x55)
+input.joypad2.y = 0x55
+
+# Joypad2 L
+# (default = 0x4f)
+input.joypad2.l = 0x4f
+
+# Joypad2 R
+# (default = 0x4c)
+input.joypad2.r = 0x4c
+
+# Joypad2 select
+# (default = 0x5b)
+input.joypad2.select = 0x5b
+
+# Joypad2 start
+# (default = 0x5d)
+input.joypad2.start = 0x5d
+

bsnes/Makefile

@@ -1,111 +0,0 @@
-include nall/Makefile
-
-fc  := fc
-sfc := sfc
-gb  := gb
-gba := gba
-nds := nds
-
-profile := accuracy
-target  := ethos
-
-# options += debugger
-# arch := win32
-# console := true
-
-# compiler
-c       := $(compiler) -std=gnu99
-cpp     := $(subst cc,++,$(compiler)) -std=gnu++0x
-flags   := -I. -O3 -fomit-frame-pointer
-link    := -s
-objects := libco
-
-# profile-guided optimization mode
-# pgo := instrument
-# pgo := optimize
-
-ifeq ($(pgo),instrument)
-  flags += -fprofile-generate
-  link += -lgcov
-else ifeq ($(pgo),optimize)
-  flags += -fprofile-use
-endif
-
-# platform
-ifeq ($(platform),x)
-  flags += -march=native
-  link += -ldl -lX11 -lXext
-else ifeq ($(platform),osx)
-else ifeq ($(platform),win)
-  ifeq ($(arch),win32)
-    flags += -m32
-    link += -m32
-  endif
-  ifeq ($(console),true)
-    link += -mconsole
-  else
-    link += -mwindows
-  endif
-  link += -mthreads -luuid -lkernel32 -luser32 -lgdi32 -lcomctl32 -lcomdlg32 -lshell32 -lole32
-  link += -Wl,-enable-auto-import -Wl,-enable-runtime-pseudo-reloc
-else
-  unknown_platform: help;
-endif
-
-ui := target-$(target)
-
-# implicit rules
-compile = \
-  $(strip \
-    $(if $(filter %.c,$<), \
-      $(c) $(flags) $1 -c $< -o $@, \
-      $(if $(filter %.cpp,$<), \
-        $(cpp) $(flags) $1 -c $< -o $@ \
-      ) \
-    ) \
-  )
-
-%.o: $<; $(call compile)
-
-all: build;
-
-obj/libco.o: libco/libco.c libco/*
-
-include $(ui)/Makefile
-flags := $(flags) $(foreach o,$(call strupper,$(options)),-D$o)
-
-# targets
-clean:
-	-@$(call delete,obj/*.o)
-	-@$(call delete,obj/*.a)
-	-@$(call delete,obj/*.so)
-	-@$(call delete,obj/*.dylib)
-	-@$(call delete,obj/*.dll)
-	-@$(call delete,*.res)
-	-@$(call delete,*.pgd)
-	-@$(call delete,*.pgc)
-	-@$(call delete,*.ilk)
-	-@$(call delete,*.pdb)
-	-@$(call delete,*.manifest)
-
-sync:
-	if [ -d ./libco ]; then rm -r ./libco; fi
-	if [ -d ./nall ]; then rm -r ./nall; fi
-	if [ -d ./ruby ]; then rm -r ./ruby; fi
-	if [ -d ./phoenix ]; then rm -r ./phoenix; fi
-	cp -r ../libco ./libco
-	cp -r ../nall ./nall
-	cp -r ../ruby ./ruby
-	cp -r ../phoenix ./phoenix
-	rm -r libco/doc
-	rm -r libco/test
-	rm -r nall/test
-	rm -r ruby/_test
-	rm -r phoenix/nall
-	rm -r phoenix/test
-
-archive:
-	if [ -f bsnes.tar.xz ]; then rm bsnes.tar.xz; fi
-	tar -cJf bsnes.tar.xz `ls`
-
-help:;

bsnes/data/bsnes.Manifest

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
-  <assemblyIdentity type="win32" name="bsnes" version="1.0.0.0" processorArchitecture="*"/>
-  <dependency>
-    <dependentAssembly>
-      <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="*" publicKeyToken="6595b64144ccf1df" language="*"/>
-    </dependentAssembly>
-  </dependency>
-</assembly>

bsnes/data/bsnes.desktop

@@ -1,8 +0,0 @@
-[Desktop Entry]
-Name=bsnes
-Comment=SNES emulator
-Exec=bsnes
-Icon=bsnes
-Terminal=false
-Type=Application
-Categories=Game;Emulator;

bsnes/emulator/emulator.hpp

@@ -1,137 +0,0 @@
-#ifndef EMULATOR_HPP
-#define EMULATOR_HPP
-
-namespace Emulator {
-  static const char Name[] = "bsnes";
-  static const char Version[] = "090";
-  static const char Author[] = "byuu";
-  static const char License[] = "GPLv3";
-}
-
-#include <nall/platform.hpp>
-#include <nall/algorithm.hpp>
-#include <nall/directory.hpp>
-#include <nall/dl.hpp>
-#include <nall/dsp.hpp>
-#include <nall/endian.hpp>
-#include <nall/file.hpp>
-#include <nall/function.hpp>
-#include <nall/priority-queue.hpp>
-#include <nall/property.hpp>
-#include <nall/random.hpp>
-#include <nall/serializer.hpp>
-#include <nall/sha256.hpp>
-#include <nall/stdint.hpp>
-#include <nall/string.hpp>
-#include <nall/utility.hpp>
-#include <nall/varint.hpp>
-#include <nall/vector.hpp>
-#include <nall/stream/memory.hpp>
-#include <nall/stream/vector.hpp>
-using namespace nall;
-
-#include "interface.hpp"
-
-//debugging function hook:
-//no overhead (and no debugger invocation) if not compiled with -DDEBUGGER
-//wraps testing of function to allow invocation without a defined callback
-template<typename T> struct hook;
-template<typename R, typename... P> struct hook<R (P...)> {
-  function<R (P...)> callback;
-
-  R operator()(P... p) const {
-    #if defined(DEBUGGER)
-    if(callback) return callback(std::forward<P>(p)...);
-    #endif
-    return R();
-  }
-
-  hook() {}
-  hook(const hook &hook) { callback = hook.callback; }
-  hook(void *function) { callback = function; }
-  hook(R (*function)(P...)) { callback = function; }
-  template<typename C> hook(R (C::*function)(P...), C *object) { callback = {function, object}; }
-  template<typename C> hook(R (C::*function)(P...) const, C *object) { callback = {function, object}; }
-  template<typename L> hook(const L& function) { callback = function; }
-
-  hook& operator=(const hook& hook) { callback = hook.callback; return *this; }
-};
-
-#if defined(DEBUGGER)
-  #define privileged public
-#else
-  #define privileged private
-#endif
-
-typedef  int1_t  int1;
-typedef  int2_t  int2;
-typedef  int3_t  int3;
-typedef  int4_t  int4;
-typedef  int5_t  int5;
-typedef  int6_t  int6;
-typedef  int7_t  int7;
-typedef  int8_t  int8;
-typedef  int9_t  int9;
-typedef int10_t int10;
-typedef int11_t int11;
-typedef int12_t int12;
-typedef int13_t int13;
-typedef int14_t int14;
-typedef int15_t int15;
-typedef int16_t int16;
-typedef int17_t int17;
-typedef int18_t int18;
-typedef int19_t int19;
-typedef int20_t int20;
-typedef int21_t int21;
-typedef int22_t int22;
-typedef int23_t int23;
-typedef int24_t int24;
-typedef int25_t int25;
-typedef int26_t int26;
-typedef int27_t int27;
-typedef int28_t int28;
-typedef int29_t int29;
-typedef int30_t int30;
-typedef int31_t int31;
-typedef int32_t int32;
-typedef int64_t int64;
-
-typedef  uint1_t  uint1;
-typedef  uint2_t  uint2;
-typedef  uint3_t  uint3;
-typedef  uint4_t  uint4;
-typedef  uint5_t  uint5;
-typedef  uint6_t  uint6;
-typedef  uint7_t  uint7;
-typedef  uint8_t  uint8;
-typedef  uint9_t  uint9;
-typedef uint10_t uint10;
-typedef uint11_t uint11;
-typedef uint12_t uint12;
-typedef uint13_t uint13;
-typedef uint14_t uint14;
-typedef uint15_t uint15;
-typedef uint16_t uint16;
-typedef uint17_t uint17;
-typedef uint18_t uint18;
-typedef uint19_t uint19;
-typedef uint20_t uint20;
-typedef uint21_t uint21;
-typedef uint22_t uint22;
-typedef uint23_t uint23;
-typedef uint24_t uint24;
-typedef uint25_t uint25;
-typedef uint26_t uint26;
-typedef uint27_t uint27;
-typedef uint28_t uint28;
-typedef uint29_t uint29;
-typedef uint30_t uint30;
-typedef uint31_t uint31;
-typedef uint32_t uint32;
-typedef uint_t<33> uint33;
-typedef uint64_t uint64;
-
-typedef varuint_t<unsigned> varuint;
-
-#endif

bsnes/emulator/interface.hpp

@@ -1,118 +0,0 @@
-#ifndef EMULATOR_INTERFACE_HPP
-#define EMULATOR_INTERFACE_HPP
-
-namespace Emulator {
-
-struct Interface {
-  struct Information {
-    string name;
-    unsigned width;
-    unsigned height;
-    bool overscan;
-    double aspectRatio;
-    bool resettable;
-    struct Capability {
-      bool states;
-      bool cheats;
-    } capability;
-  } information;
-
-  struct Media {
-    unsigned id;
-    string name;
-    string type;
-    string load;
-  };
-
-  vector<Media> media;
-
-  struct Device {
-    unsigned id;
-    unsigned portmask;
-    string name;
-    struct Input {
-      unsigned id;
-      unsigned type;  //0 = digital, 1 = analog (relative), 2 = analog (absolute)
-      string name;
-      unsigned guid;
-    };
-    vector<Input> input;
-    vector<unsigned> order;
-  };
-
-  struct Port {
-    unsigned id;
-    string name;
-    vector<Device> device;
-  };
-  vector<Port> port;
-
-  struct Bind {
-    virtual void loadRequest(unsigned, const string&, const string&) {}
-    virtual void loadRequest(unsigned, const string&) {}
-    virtual void saveRequest(unsigned, const string&) {}
-    virtual uint32_t videoColor(unsigned, uint16_t, uint16_t, uint16_t) { return 0u; }
-    virtual void videoRefresh(const uint32_t*, unsigned, unsigned, unsigned) {}
-    virtual void audioSample(int16_t, int16_t) {}
-    virtual int16_t inputPoll(unsigned, unsigned, unsigned) { return 0; }
-    virtual unsigned dipSettings(const XML::Node&) { return 0; }
-    virtual string path(unsigned) { return ""; }
-    virtual void notify(const string &text) { print(text, "\n"); }
-  } *bind;
-
-  //callback bindings (provided by user interface)
-  void loadRequest(unsigned id, const string &name, const string &type) { return bind->loadRequest(id, name, type); }
-  void loadRequest(unsigned id, const string &path) { return bind->loadRequest(id, path); }
-  void saveRequest(unsigned id, const string &path) { return bind->saveRequest(id, path); }
-  uint32_t videoColor(unsigned source, uint16_t red, uint16_t green, uint16_t blue) { return bind->videoColor(source, red, green, blue); }
-  void videoRefresh(const uint32_t *data, unsigned pitch, unsigned width, unsigned height) { return bind->videoRefresh(data, pitch, width, height); }
-  void audioSample(int16_t lsample, int16_t rsample) { return bind->audioSample(lsample, rsample); }
-  int16_t inputPoll(unsigned port, unsigned device, unsigned input) { return bind->inputPoll(port, device, input); }
-  unsigned dipSettings(const XML::Node &node) { return bind->dipSettings(node); }
-  string path(unsigned group) { return bind->path(group); }
-  template<typename... Args> void notify(Args&... args) { return bind->notify({std::forward<Args>(args)...}); }
-
-  //information
-  virtual double videoFrequency() = 0;
-  virtual double audioFrequency() = 0;
-
-  //media interface
-  virtual bool loaded() { return false; }
-  virtual string sha256() { return ""; }
-  virtual unsigned group(unsigned id) = 0;
-  virtual void load(unsigned id, const string &manifest) {}
-  virtual void save() {}
-  virtual void load(unsigned id, const stream &memory, const string &markup = "") {}
-  virtual void save(unsigned id, const stream &memory) {}
-  virtual void unload() {}
-
-  //system interface
-  virtual void connect(unsigned port, unsigned device) {}
-  virtual void power() {}
-  virtual void reset() {}
-  virtual void run() {}
-
-  //time functions
-  virtual bool rtc() { return false; }
-  virtual void rtcsync() {}
-
-  //state functions
-  virtual serializer serialize() = 0;
-  virtual bool unserialize(serializer&) = 0;
-
-  //cheat functions
-  virtual void cheatSet(const lstring& = lstring{}) {}
-
-  //utility functions
-  virtual void paletteUpdate() {}
-
-  //debugger functions
-  virtual bool tracerEnable(bool) { return false; }
-  virtual void exportMemory() {}
-
-  Interface() : bind(nullptr) {}
-};
-
-}
-
-#endif

bsnes/fc/Makefile

@@ -1,16 +0,0 @@
-fc_objects := fc-interface fc-system fc-scheduler fc-input
-fc_objects += fc-memory fc-cartridge fc-cpu fc-apu fc-ppu
-fc_objects += fc-cheat fc-video
-objects += $(fc_objects)
-
-obj/fc-interface.o: $(fc)/interface/interface.cpp $(call rwildcard,$(fc)/interface/)
-obj/fc-system.o: $(fc)/system/system.cpp $(call rwildcard,$(fc)/system/)
-obj/fc-scheduler.o: $(fc)/scheduler/scheduler.cpp $(call rwildcard,$(fc)/scheduler/)
-obj/fc-input.o: $(fc)/input/input.cpp $(call rwildcard,$(fc)/input/)
-obj/fc-memory.o: $(fc)/memory/memory.cpp $(call rwildcard,$(fc)/memory/)
-obj/fc-cartridge.o: $(fc)/cartridge/cartridge.cpp $(call rwildcard,$(fc)/cartridge/)
-obj/fc-cpu.o: $(fc)/cpu/cpu.cpp $(call rwildcard,$(fc)/cpu/)
-obj/fc-apu.o: $(fc)/apu/apu.cpp $(call rwildcard,$(fc)/apu/)
-obj/fc-ppu.o: $(fc)/ppu/ppu.cpp $(call rwildcard,$(fc)/ppu/)
-obj/fc-cheat.o: $(fc)/cheat/cheat.cpp $(call rwildcard,$(fc)/cheat/)
-obj/fc-video.o: $(fc)/video/video.cpp $(call rwildcard,$(fc)/video/)

bsnes/fc/apu/apu.cpp

@@ -1,329 +0,0 @@
-#include <fc/fc.hpp>
-
-namespace Famicom {
-
-#include "envelope.cpp"
-#include "sweep.cpp"
-#include "pulse.cpp"
-#include "triangle.cpp"
-#include "noise.cpp"
-#include "dmc.cpp"
-#include "serialization.cpp"
-APU apu;
-
-const uint8 APU::length_counter_table[32] = {
-  0x0a, 0xfe, 0x14, 0x02, 0x28, 0x04, 0x50, 0x06, 0xa0, 0x08, 0x3c, 0x0a, 0x0e, 0x0c, 0x1a, 0x0e,
-  0x0c, 0x10, 0x18, 0x12, 0x30, 0x14, 0x60, 0x16, 0xc0, 0x18, 0x48, 0x1a, 0x10, 0x1c, 0x20, 0x1e,
-};
-
-const uint16 APU::ntsc_noise_period_table[16] = {
-  4, 8, 16, 32, 64, 96, 128, 160, 202, 254, 380, 508, 762, 1016, 2034, 4068,
-};
-
-const uint16 APU::pal_noise_period_table[16] = {
-  4, 7, 14, 30, 60, 88, 118, 148, 188, 236, 354, 472, 708,  944, 1890, 3778,
-};
-
-const uint16 APU::ntsc_dmc_period_table[16] = {
-  428, 380, 340, 320, 286, 254, 226, 214, 190, 160, 142, 128, 106, 84, 72, 54,
-};
-
-const uint16 APU::pal_dmc_period_table[16] = {
-  398, 354, 316, 298, 276, 236, 210, 198, 176, 148, 132, 118,  98, 78, 66, 50,
-};
-
-void APU::Main() {
-  apu.main();
-}
-
-void APU::main() {
-  while(true) {
-    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
-      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
-    }
-
-    unsigned pulse_output, triangle_output, noise_output, dmc_output;
-
-    pulse_output  = pulse[0].clock();
-    pulse_output += pulse[1].clock();
-    triangle_output = triangle.clock();
-    noise_output = noise.clock();
-    dmc_output = dmc.clock();
-
-    clock_frame_counter_divider();
-
-    signed output = pulse_dac[pulse_output] + dmc_triangle_noise_dac[dmc_output][triangle_output][noise_output];
-
-    output  = filter.run_hipass_strong(output);
-    output += cartridge_sample;
-    output  = filter.run_hipass_weak(output);
-  //output  = filter.run_lopass(output);
-    output  = sclamp<16>(output);
-
-    interface->audioSample(output, output);
-
-    tick();
-  }
-}
-
-void APU::tick() {
-  clock += 12;
-  if(clock >= 0 && scheduler.sync != Scheduler::SynchronizeMode::All) co_switch(cpu.thread);
-}
-
-void APU::set_irq_line() {
-  cpu.set_irq_apu_line(frame.irq_pending || dmc.irq_pending);
-}
-
-void APU::set_sample(int16 sample) {
-  cartridge_sample = sample;
-}
-
-void APU::power() {
-  filter.hipass_strong = 0;
-  filter.hipass_weak = 0;
-  filter.lopass = 0;
-
-  pulse[0].power();
-  pulse[1].power();
-  triangle.power();
-  noise.power();
-  dmc.power();
-}
-
-void APU::reset() {
-  create(APU::Main, 21477272);
-
-  pulse[0].reset();
-  pulse[1].reset();
-  triangle.reset();
-  noise.reset();
-  dmc.reset();
-
-  frame.irq_pending = 0;
-
-  frame.mode = 0;
-  frame.counter = 0;
-  frame.divider = 1;
-
-  enabled_channels = 0;
-  cartridge_sample = 0;
-
-  set_irq_line();
-}
-
-uint8 APU::read(uint16 addr) {
-  if(addr == 0x4015) {
-    uint8 result = 0x00;
-    result |= pulse[0].length_counter ? 0x01 : 0;
-    result |= pulse[1].length_counter ? 0x02 : 0;
-    result |= triangle.length_counter ? 0x04 : 0;
-    result |=    noise.length_counter ? 0x08 : 0;
-    result |=      dmc.length_counter ? 0x10 : 0;
-    result |=       frame.irq_pending ? 0x40 : 0;
-    result |=         dmc.irq_pending ? 0x80 : 0;
-
-    frame.irq_pending = false;
-    set_irq_line();
-
-    return result;
-  }
-
-  return cpu.mdr();
-}
-
-void APU::write(uint16 addr, uint8 data) {
-  const unsigned n = (addr >> 2) & 1;  //pulse#
-
-  switch(addr) {
-  case 0x4000: case 0x4004:
-    pulse[n].duty = data >> 6;
-    pulse[n].envelope.loop_mode = data & 0x20;
-    pulse[n].envelope.use_speed_as_volume = data & 0x10;
-    pulse[n].envelope.speed = data & 0x0f;
-    break;
-
-  case 0x4001: case 0x4005:
-    pulse[n].sweep.enable = data & 0x80;
-    pulse[n].sweep.period = (data & 0x70) >> 4;
-    pulse[n].sweep.decrement = data & 0x08;
-    pulse[n].sweep.shift = data & 0x07;
-    pulse[n].sweep.reload = true;
-    break;
-
-  case 0x4002: case 0x4006:
-    pulse[n].period = (pulse[n].period & 0x0700) | (data << 0);
-    pulse[n].sweep.pulse_period = (pulse[n].sweep.pulse_period & 0x0700) | (data << 0);
-    break;
-
-  case 0x4003: case 0x4007:
-    pulse[n].period = (pulse[n].period & 0x00ff) | (data << 8);
-    pulse[n].sweep.pulse_period = (pulse[n].sweep.pulse_period & 0x00ff) | (data << 8);
-
-    pulse[n].duty_counter = 7;
-    pulse[n].envelope.reload_decay = true;
-
-    if(enabled_channels & (1 << n)) {
-      pulse[n].length_counter = length_counter_table[(data >> 3) & 0x1f];
-    }
-    break;
-
-  case 0x4008:
-    triangle.halt_length_counter = data & 0x80;
-    triangle.linear_length = data & 0x7f;
-    break;
-
-  case 0x400a:
-    triangle.period = (triangle.period & 0x0700) | (data << 0);
-    break;
-
-  case 0x400b:
-    triangle.period = (triangle.period & 0x00ff) | (data << 8);
-
-    triangle.reload_linear = true;
-
-    if(enabled_channels & (1 << 2)) {
-      triangle.length_counter = length_counter_table[(data >> 3) & 0x1f];
-    }
-    break;
-
-  case 0x400c:
-    noise.envelope.loop_mode = data & 0x20;
-    noise.envelope.use_speed_as_volume = data & 0x10;
-    noise.envelope.speed = data & 0x0f;
-    break;
-
-  case 0x400e:
-    noise.short_mode = data & 0x80;
-    noise.period = data & 0x0f;
-    break;
-
-  case 0x400f:
-    noise.envelope.reload_decay = true;
-
-    if(enabled_channels & (1 << 3)) {
-      noise.length_counter = length_counter_table[(data >> 3) & 0x1f];
-    }
-    break;
-
-  case 0x4010:
-    dmc.irq_enable = data & 0x80;
-    dmc.loop_mode = data & 0x40;
-    dmc.period = data & 0x0f;
-
-    dmc.irq_pending = dmc.irq_pending && dmc.irq_enable && !dmc.loop_mode;
-    set_irq_line();
-    break;
-
-  case 0x4011:
-    dmc.dac_latch = data & 0x7f;
-    break;
-
-  case 0x4012:
-    dmc.addr_latch = data;
-    break;
-
-  case 0x4013:
-    dmc.length_latch = data;
-    break;
-
-  case 0x4015:
-    if((data & 0x01) == 0) pulse[0].length_counter = 0;
-    if((data & 0x02) == 0) pulse[1].length_counter = 0;
-    if((data & 0x04) == 0) triangle.length_counter = 0;
-    if((data & 0x08) == 0)    noise.length_counter = 0;
-
-    (data & 0x10) ? dmc.start() : dmc.stop();
-    dmc.irq_pending = false;
-
-    set_irq_line();
-    enabled_channels = data & 0x1f;
-    break;
-
-  case 0x4017:
-    frame.mode = data >> 6;
-
-    frame.counter = 0;
-    if(frame.mode & 2) clock_frame_counter();
-    if(frame.mode & 1) {
-      frame.irq_pending = false;
-      set_irq_line();
-    }
-    frame.divider = FrameCounter::NtscPeriod;
-    break;
-  }
-}
-
-signed APU::Filter::run_hipass_strong(signed sample) {
-  hipass_strong += ((((int64)sample << 16) - (hipass_strong >> 16)) * HiPassStrong) >> 16;
-  return sample - (hipass_strong >> 32);
-}
-
-signed APU::Filter::run_hipass_weak(signed sample) {
-  hipass_weak += ((((int64)sample << 16) - (hipass_weak >> 16)) * HiPassWeak) >> 16;
-  return sample - (hipass_weak >> 32);
-}
-
-signed APU::Filter::run_lopass(signed sample) {
-  lopass += ((((int64)sample << 16) - (lopass >> 16)) * LoPass) >> 16;
-  return (lopass >> 32);
-}
-
-void APU::clock_frame_counter() {
-  frame.counter++;
-
-  if(frame.counter & 1) {
-    pulse[0].clock_length();
-    pulse[0].sweep.clock(0);
-    pulse[1].clock_length();
-    pulse[1].sweep.clock(1);
-    triangle.clock_length();
-    noise.clock_length();
-  }
-
-  pulse[0].envelope.clock();
-  pulse[1].envelope.clock();
-  triangle.clock_linear_length();
-  noise.envelope.clock();
-
-  if(frame.counter == 0) {
-    if(frame.mode & 2) frame.divider += FrameCounter::NtscPeriod;
-    if(frame.mode == 0) {
-      frame.irq_pending = true;
-      set_irq_line();
-    }
-  }
-}
-
-void APU::clock_frame_counter_divider() {
-  frame.divider -= 2;
-  if(frame.divider <= 0) {
-    clock_frame_counter();
-    frame.divider += FrameCounter::NtscPeriod;
-  }
-}
-
-APU::APU() {
-  for(unsigned amp = 0; amp < 32; amp++) {
-    if(amp == 0) {
-      pulse_dac[amp] = 0;
-    } else {
-      pulse_dac[amp] = 16384.0 * 95.88 / (8128.0 / amp + 100.0);
-    }
-  }
-
-  for(unsigned dmc_amp = 0; dmc_amp < 128; dmc_amp++) {
-    for(unsigned triangle_amp = 0; triangle_amp < 16; triangle_amp++) {
-      for(unsigned noise_amp = 0; noise_amp < 16; noise_amp++) {
-        if(dmc_amp == 0 && triangle_amp == 0 && noise_amp == 0) {
-          dmc_triangle_noise_dac[dmc_amp][triangle_amp][noise_amp] = 0;
-        } else {
-          dmc_triangle_noise_dac[dmc_amp][triangle_amp][noise_amp]
-          = 16384.0 * 159.79 / (100.0 + 1.0 / (triangle_amp / 8227.0 + noise_amp / 12241.0 + dmc_amp / 22638.0));
-        }
-      }
-    }
-  }
-}
-
-}

bsnes/fc/apu/apu.hpp

@@ -1,65 +0,0 @@
-struct APU : Thread {
-  static void Main();
-  void main();
-  void tick();
-  void set_irq_line();
-  void set_sample(int16 sample);
-
-  void power();
-  void reset();
-
-  uint8 read(uint16 addr);
-  void write(uint16 addr, uint8 data);
-
-  void serialize(serializer&);
-  APU();
-
-  struct Filter {
-    enum : signed { HiPassStrong = 225574, HiPassWeak = 57593, LoPass = 86322413 };
-
-    int64 hipass_strong;
-    int64 hipass_weak;
-    int64 lopass;
-
-    signed run_hipass_strong(signed sample);
-    signed run_hipass_weak(signed sample);
-    signed run_lopass(signed sample);
-    void serialize(serializer&);
-  } filter;
-
-  #include "envelope.hpp"
-  #include "sweep.hpp"
-  #include "pulse.hpp"
-  #include "triangle.hpp"
-  #include "noise.hpp"
-  #include "dmc.hpp"
-
-  struct FrameCounter {
-    enum : unsigned { NtscPeriod = 14915 };  //~(21.477MHz / 6 / 240hz)
-
-    bool irq_pending;
-
-    uint2 mode;
-    uint2 counter;
-    signed divider;
-
-    void serialize(serializer&);
-  } frame;
-
-  void clock_frame_counter();
-  void clock_frame_counter_divider();
-
-  uint8 enabled_channels;
-  int16 cartridge_sample;
-
-  int16 pulse_dac[32];
-  int16 dmc_triangle_noise_dac[128][16][16];
-
-  static const uint8 length_counter_table[32];
-  static const uint16 ntsc_dmc_period_table[16];
-  static const uint16 pal_dmc_period_table[16];
-  static const uint16 ntsc_noise_period_table[16];
-  static const uint16 pal_noise_period_table[16];
-};
-
-extern APU apu;

bsnes/fc/apu/dmc.cpp

@@ -1,117 +0,0 @@
-void APU::DMC::start() {
-  if(length_counter == 0) {
-    read_addr = 0x4000 + (addr_latch << 6);
-    length_counter = (length_latch << 4) + 1;
-  }
-}
-
-void APU::DMC::stop() {
-  length_counter = 0;
-  dma_delay_counter = 0;
-  cpu.set_rdy_line(1);
-  cpu.set_rdy_addr({ false, 0u });
-}
-
-uint8 APU::DMC::clock() {
-  uint8 result = dac_latch;
-
-  if(dma_delay_counter > 0) {
-    dma_delay_counter--;
-
-    if(dma_delay_counter == 1) {
-      cpu.set_rdy_addr({ true, uint16(0x8000 | read_addr) });
-    } else if(dma_delay_counter == 0) {
-      cpu.set_rdy_line(1);
-      cpu.set_rdy_addr({ false, 0u });
-
-      dma_buffer = cpu.mdr();
-      have_dma_buffer = true;
-      length_counter--;
-      read_addr++;
-
-      if(length_counter == 0) {
-        if(loop_mode) {
-          start();
-        } else if(irq_enable) {
-          irq_pending = true;
-          apu.set_irq_line();
-        }
-      }
-    }
-  }
-
-  if(--period_counter == 0) {
-    if(have_sample) {
-      signed delta = (((sample >> bit_counter) & 1) << 2) - 2;
-      unsigned data = dac_latch + delta;
-      if((data & 0x80) == 0) dac_latch = data;
-    }
-
-    if(++bit_counter == 0) {
-      if(have_dma_buffer) {
-        have_sample = true;
-        sample = dma_buffer;
-        have_dma_buffer = false;
-      } else {
-        have_sample = false;
-      }
-    }
-
-    period_counter = ntsc_dmc_period_table[period];
-  }
-
-  if(length_counter > 0 && have_dma_buffer == false && dma_delay_counter == 0) {
-    cpu.set_rdy_line(0);
-    dma_delay_counter = 4;
-  }
-
-  return result;
-}
-
-void APU::DMC::power() {
-}
-
-void APU::DMC::reset() {
-  length_counter = 0;
-  irq_pending = 0;
-
-  period = 0;
-  period_counter = ntsc_dmc_period_table[0];
-  irq_enable = 0;
-  loop_mode = 0;
-  dac_latch = 0;
-  addr_latch = 0;
-  length_latch = 0;
-  read_addr = 0;
-  dma_delay_counter = 0;
-  bit_counter = 0;
-  have_dma_buffer = 0;
-  dma_buffer = 0;
-  have_sample = 0;
-  sample = 0;
-}
-
-void APU::DMC::serialize(serializer &s) {
-  s.integer(length_counter);
-  s.integer(irq_pending);
-
-  s.integer(period);
-  s.integer(period_counter);
-
-  s.integer(irq_enable);
-  s.integer(loop_mode);
-
-  s.integer(dac_latch);
-  s.integer(addr_latch);
-  s.integer(length_latch);
-
-  s.integer(read_addr);
-  s.integer(dma_delay_counter);
-
-  s.integer(bit_counter);
-  s.integer(have_dma_buffer);
-  s.integer(dma_buffer);
-
-  s.integer(have_sample);
-  s.integer(sample);
-}

bsnes/fc/apu/dmc.hpp

@@ -1,32 +0,0 @@
-struct DMC {
-  unsigned length_counter;
-  bool irq_pending;
-
-  uint4 period;
-  unsigned period_counter;
-
-  bool irq_enable;
-  bool loop_mode;
-
-  uint8 dac_latch;
-  uint8 addr_latch;
-  uint8 length_latch;
-
-  uint15 read_addr;
-  unsigned dma_delay_counter;
-
-  uint3 bit_counter;
-  bool have_dma_buffer;
-  uint8 dma_buffer;
-
-  bool have_sample;
-  uint8 sample;
-
-  void start();
-  void stop();
-  uint8 clock();
-
-  void power();
-  void reset();
-  void serialize(serializer&);
-} dmc;

bsnes/fc/apu/envelope.cpp

@@ -1,39 +0,0 @@
-unsigned APU::Envelope::volume() const {
-  return use_speed_as_volume ? speed : decay_volume;
-}
-
-void APU::Envelope::clock() {
-  if(reload_decay) {
-    reload_decay = false;
-    decay_volume = 0x0f;
-    decay_counter = speed + 1;
-    return;
-  }
-
-  if(--decay_counter == 0) {
-    decay_counter = speed + 1;
-    if(decay_volume || loop_mode) decay_volume--;
-  }
-}
-
-void APU::Envelope::power() {
-}
-
-void APU::Envelope::reset() {
-  speed = 0;
-  use_speed_as_volume = 0;
-  loop_mode = 0;
-  reload_decay = 0;
-  decay_counter = 0;
-  decay_volume = 0;
-}
-
-void APU::Envelope::serialize(serializer &s) {
-  s.integer(speed);
-  s.integer(use_speed_as_volume);
-  s.integer(loop_mode);
-
-  s.integer(reload_decay);
-  s.integer(decay_counter);
-  s.integer(decay_volume);
-}

bsnes/fc/apu/envelope.hpp

@@ -1,16 +0,0 @@
-struct Envelope {
-  uint4 speed;
-  bool use_speed_as_volume;
-  bool loop_mode;
-
-  bool reload_decay;
-  uint8 decay_counter;
-  uint4 decay_volume;
-
-  unsigned volume() const;
-  void clock();
-
-  void power();
-  void reset();
-  void serialize(serializer&);
-};

bsnes/fc/apu/noise.cpp

@@ -1,57 +0,0 @@
-void APU::Noise::clock_length() {
-  if(envelope.loop_mode == 0) {
-    if(length_counter > 0) length_counter--;
-  }
-}
-
-uint8 APU::Noise::clock() {
-  if(length_counter == 0) return 0;
-
-  uint8 result = (lfsr & 1) ? envelope.volume() : 0;
-
-  if(--period_counter == 0) {
-    unsigned feedback;
-
-    if(short_mode) {
-      feedback = ((lfsr >> 0) & 1) ^ ((lfsr >> 6) & 1);
-    } else {
-      feedback = ((lfsr >> 0) & 1) ^ ((lfsr >> 1) & 1);
-    }
-
-    lfsr = (lfsr >> 1) | (feedback << 14);
-    period_counter = apu.ntsc_noise_period_table[period];
-  }
-
-  return result;
-}
-
-void APU::Noise::power() {
-}
-
-void APU::Noise::reset() {
-  length_counter = 0;
-
-  envelope.speed = 0;
-  envelope.use_speed_as_volume = 0;
-  envelope.loop_mode = 0;
-  envelope.reload_decay = 0;
-  envelope.decay_counter = 0;
-  envelope.decay_volume = 0;
-
-  period = 0;
-  period_counter = 1;
-  short_mode = 0;
-  lfsr = 1;
-}
-
-void APU::Noise::serialize(serializer &s) {
-  s.integer(length_counter);
-
-  envelope.serialize(s);
-
-  s.integer(period);
-  s.integer(period_counter);
-
-  s.integer(short_mode);
-  s.integer(lfsr);
-}

bsnes/fc/apu/noise.hpp

@@ -1,18 +0,0 @@
-struct Noise {
-  unsigned length_counter;
-
-  Envelope envelope;
-
-  uint4 period;
-  unsigned period_counter;
-
-  bool short_mode;
-  uint15 lfsr;
-
-  void clock_length();
-  uint8 clock();
-
-  void power();
-  void reset();
-  void serialize(serializer&);
-} noise;

bsnes/fc/apu/pulse.cpp

@@ -1,51 +0,0 @@
-void APU::Pulse::clock_length() {
-  if(envelope.loop_mode == 0) {
-    if(length_counter) length_counter--;
-  }
-}
-
-uint8 APU::Pulse::clock() {
-  if(sweep.check_period() == false) return 0;
-  if(length_counter == 0) return 0;
-
-  static const unsigned duty_table[] = { 1, 2, 4, 6 };
-  uint8 result = (duty_counter < duty_table[duty]) ? envelope.volume() : 0;
-  if(sweep.pulse_period < 0x008) result = 0;
-
-  if(--period_counter == 0) {
-    period_counter = (sweep.pulse_period + 1) * 2;
-    duty_counter++;
-  }
-
-  return result;
-}
-
-void APU::Pulse::power() {
-  envelope.power();
-  sweep.power();
-}
-
-void APU::Pulse::reset() {
-  envelope.reset();
-  sweep.reset();
-
-  length_counter = 0;
-
-  duty = 0;
-  duty_counter = 0;
-  period = 0;
-  period_counter = 1;
-}
-
-void APU::Pulse::serialize(serializer &s) {
-  s.integer(length_counter);
-
-  envelope.serialize(s);
-  sweep.serialize(s);
-
-  s.integer(duty);
-  s.integer(duty_counter);
-
-  s.integer(period);
-  s.integer(period_counter);
-}

bsnes/fc/apu/pulse.hpp

@@ -1,20 +0,0 @@
-struct Pulse {
-  unsigned length_counter;
-
-  Envelope envelope;
-  Sweep sweep;
-
-  uint2 duty;
-  uint3 duty_counter;
-
-  uint11 period;
-  unsigned period_counter;
-
-  void clock_length();
-  bool check_period();
-  uint8 clock();
-
-  void power();
-  void reset();
-  void serialize(serializer&);
-} pulse[2];

bsnes/fc/apu/serialization.cpp

@@ -1,28 +0,0 @@
-void APU::serialize(serializer &s) {
-  Thread::serialize(s);
-
-  filter.serialize(s);
-
-  pulse[0].serialize(s);
-  pulse[1].serialize(s);
-  triangle.serialize(s);
-  dmc.serialize(s);
-  frame.serialize(s);
-
-  s.integer(enabled_channels);
-  s.integer(cartridge_sample);
-}
-
-void APU::Filter::serialize(serializer &s) {
-  s.integer(hipass_strong);
-  s.integer(hipass_weak);
-  s.integer(lopass);
-}
-
-void APU::FrameCounter::serialize(serializer &s) {
-  s.integer(irq_pending);
-
-  s.integer(mode);
-  s.integer(counter);
-  s.integer(divider);
-}

bsnes/fc/apu/sweep.cpp

@@ -1,53 +0,0 @@
-bool APU::Sweep::check_period() {
-  if(pulse_period > 0x7ff) return false;
-
-  if(decrement == 0) {
-    if((pulse_period + (pulse_period >> shift)) & 0x800) return false;
-  }
-
-  return true;
-}
-
-void APU::Sweep::clock(unsigned channel) {
-  if(--counter == 0) {
-    counter = period + 1;
-    if(enable && shift && pulse_period > 8) {
-      signed delta = pulse_period >> shift;
-
-      if(decrement) {
-        pulse_period -= delta;
-        if(channel == 0) pulse_period--;
-      } else if((pulse_period + delta) < 0x800) {
-        pulse_period += delta;
-      }
-    }
-  }
-
-  if(reload) {
-    reload = false;
-    counter = period + 1;
-  }
-}
-
-void APU::Sweep::power() {
-  shift = 0;
-  decrement = 0;
-  period = 0;
-  counter = 1;
-  enable = 0;
-  reload = 0;
-  pulse_period = 0;
-}
-
-void APU::Sweep::reset() {
-}
-
-void APU::Sweep::serialize(serializer &s) {
-  s.integer(shift);
-  s.integer(decrement);
-  s.integer(period);
-  s.integer(counter);
-  s.integer(enable);
-  s.integer(reload);
-  s.integer(pulse_period);
-}

bsnes/fc/apu/sweep.hpp

@@ -1,16 +0,0 @@
-struct Sweep {
-  uint8 shift;
-  bool decrement;
-  uint3 period;
-  uint8 counter;
-  bool enable;
-  bool reload;
-  uint11 pulse_period;
-
-  bool check_period();
-  void clock(unsigned channel);
-
-  void power();
-  void reset();
-  void serialize(serializer&);
-};

bsnes/fc/apu/triangle.cpp

@@ -1,58 +0,0 @@
-void APU::Triangle::clock_length() {
-  if(halt_length_counter == 0) {
-    if(length_counter > 0) length_counter--;
-  }
-}
-
-void APU::Triangle::clock_linear_length() {
-  if(reload_linear) {
-    linear_length_counter = linear_length;
-  } else if(linear_length_counter) {
-    linear_length_counter--;
-  }
-
-  if(halt_length_counter == 0) reload_linear = false;
-}
-
-uint8 APU::Triangle::clock() {
-  uint8 result = step_counter & 0x0f;
-  if((step_counter & 0x10) == 0) result ^= 0x0f;
-  if(length_counter == 0 || linear_length_counter == 0) return result;
-
-  if(--period_counter == 0) {
-    step_counter++;
-    period_counter = period + 1;
-  }
-
-  return result;
-}
-
-void APU::Triangle::power() {
-  reset();
-}
-
-void APU::Triangle::reset() {
-  length_counter = 0;
-
-  linear_length = 0;
-  halt_length_counter = 0;
-  period = 0;
-  period_counter = 1;
-  step_counter = 0;
-  linear_length_counter = 0;
-  reload_linear = 0;
-}
-
-void APU::Triangle::serialize(serializer &s) {
-  s.integer(length_counter);
-
-  s.integer(linear_length);
-  s.integer(halt_length_counter);
-
-  s.integer(period);
-  s.integer(period_counter);
-
-  s.integer(step_counter);
-  s.integer(linear_length_counter);
-  s.integer(reload_linear);
-}

bsnes/fc/apu/triangle.hpp

@@ -1,21 +0,0 @@
-struct Triangle {
-  unsigned length_counter;
-
-  uint8 linear_length;
-  bool halt_length_counter;
-
-  uint11 period;
-  unsigned period_counter;
-
-  uint5 step_counter;
-  uint8 linear_length_counter;
-  bool reload_linear;
-
-  void clock_length();
-  void clock_linear_length();
-  uint8 clock();
-
-  void power();
-  void reset();
-  void serialize(serializer&);
-} triangle;

bsnes/fc/cartridge/board/bandai-fcg.cpp

@@ -1,117 +0,0 @@
-//BANDAI-FCG
-
-struct BandaiFCG : Board {
-
-uint8 chr_bank[8];
-uint8 prg_bank;
-uint2 mirror;
-bool irq_counter_enable;
-uint16 irq_counter;
-uint16 irq_latch;
-
-void main() {
-  while(true) {
-    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
-      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
-    }
-
-    if(irq_counter_enable) {
-      if(--irq_counter == 0xffff) {
-        cpu.set_irq_line(1);
-        irq_counter_enable = false;
-      }
-    }
-
-    tick();
-  }
-}
-
-unsigned ciram_addr(unsigned addr) const {
-  switch(mirror) {
-  case 0: return ((addr & 0x0400) >> 0) | (addr & 0x03ff);
-  case 1: return ((addr & 0x0800) >> 1) | (addr & 0x03ff);
-  case 2: return 0x0000 | (addr & 0x03ff);
-  case 3: return 0x0400 | (addr & 0x03ff);
-  }
-}
-
-uint8 prg_read(unsigned addr) {
-  if(addr & 0x8000) {
-    bool region = addr & 0x4000;
-    unsigned bank = (region == 0 ? prg_bank : 0x0f);
-    return prgrom.read((bank << 14) | (addr & 0x3fff));
-  }
-  return cpu.mdr();
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if(addr >= 0x6000) {
-    switch(addr & 15) {
-    case 0x00: case 0x01: case 0x02: case 0x03:
-    case 0x04: case 0x05: case 0x06: case 0x07:
-      chr_bank[addr & 7] = data;
-      break;
-    case 0x08:
-      prg_bank = data & 0x0f;
-      break;
-    case 0x09:
-      mirror = data & 0x03;
-      break;
-    case 0x0a:
-      cpu.set_irq_line(0);
-      irq_counter_enable = data & 0x01;
-      irq_counter = irq_latch;
-      break;
-    case 0x0b:
-      irq_latch = (irq_latch & 0xff00) | (data << 0);
-      break;
-    case 0x0c:
-      irq_latch = (irq_latch & 0x00ff) | (data << 8);
-      break;
-    case 0x0d:
-      //TODO: serial EEPROM support
-      break;
-    }
-  }
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) return ppu.ciram_read(ciram_addr(addr));
-  addr = (chr_bank[addr >> 10] << 10) | (addr & 0x03ff);
-  return Board::chr_read(addr);
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) return ppu.ciram_write(ciram_addr(addr), data);
-  addr = (chr_bank[addr >> 10] << 10) | (addr & 0x03ff);
-  return Board::chr_write(addr, data);
-}
-
-void power() {
-  reset();
-}
-
-void reset() {
-  for(auto &n : chr_bank) n = 0;
-  prg_bank = 0;
-  mirror = 0;
-  irq_counter_enable = 0;
-  irq_counter = 0;
-  irq_latch = 0;
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-
-  s.array(chr_bank);
-  s.integer(prg_bank);
-  s.integer(mirror);
-  s.integer(irq_counter_enable);
-  s.integer(irq_counter);
-  s.integer(irq_latch);
-}
-
-BandaiFCG(XML::Document &document) : Board(document) {
-}
-
-};

bsnes/fc/cartridge/board/board.cpp

@@ -1,174 +0,0 @@
-#include "bandai-fcg.cpp"
-#include "konami-vrc1.cpp"
-#include "konami-vrc2.cpp"
-#include "konami-vrc3.cpp"
-#include "konami-vrc4.cpp"
-#include "konami-vrc6.cpp"
-#include "konami-vrc7.cpp"
-#include "nes-axrom.cpp"
-#include "nes-bnrom.cpp"
-#include "nes-cnrom.cpp"
-#include "nes-exrom.cpp"
-#include "nes-fxrom.cpp"
-#include "nes-gxrom.cpp"
-#include "nes-hkrom.cpp"
-#include "nes-nrom.cpp"
-#include "nes-pxrom.cpp"
-#include "nes-sxrom.cpp"
-#include "nes-txrom.cpp"
-#include "nes-uxrom.cpp"
-#include "sunsoft-5b.cpp"
-
-uint8 Board::Memory::read(unsigned addr) const {
-  return data[mirror(addr, size)];
-}
-
-void Board::Memory::write(unsigned addr, uint8 byte) {
-  if(writable) data[mirror(addr, size)] = byte;
-}
-
-unsigned Board::mirror(unsigned addr, unsigned size) {
-  unsigned base = 0;
-  if(size) {
-    unsigned mask = 1 << 23;
-    while(addr >= size) {
-      while(!(addr & mask)) mask >>= 1;
-      addr -= mask;
-      if(size > mask) {
-        size -= mask;
-        base += mask;
-      }
-      mask >>= 1;
-    }
-    base += addr;
-  }
-  return base;
-}
-
-void Board::main() {
-  while(true) {
-    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
-      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
-    }
-
-    cartridge.clock += 12 * 4095;
-    tick();
-  }
-}
-
-void Board::tick() {
-  cartridge.clock += 12;
-  if(cartridge.clock >= 0 && scheduler.sync != Scheduler::SynchronizeMode::All) co_switch(cpu.thread);
-}
-
-uint8 Board::chr_read(unsigned addr) {
-  if(chrram.size) return chrram.data[mirror(addr, chrram.size)];
-  if(chrrom.size) return chrrom.data[mirror(addr, chrrom.size)];
-  return 0u;
-}
-
-void Board::chr_write(unsigned addr, uint8 data) {
-  if(chrram.size) chrram.data[mirror(addr, chrram.size)] = data;
-}
-
-void Board::power() {
-}
-
-void Board::reset() {
-}
-
-void Board::serialize(serializer &s) {
-  if(prgram.size) s.array(prgram.data, prgram.size);
-  if(chrram.size) s.array(chrram.data, chrram.size);
-}
-
-Board::Board(XML::Document &document) {
-  cartridge.board = this;
-  auto &cartridge = document["cartridge"];
-
-  information.type = cartridge["board"]["type"].data;
-  information.battery = cartridge["prg"]["ram"]["nonvolatile"].data == "true";
-
-  auto &prom = cartridge["prg"]["rom"];
-  auto &pram = cartridge["prg"]["ram"];
-  auto &crom = cartridge["chr"]["rom"];
-  auto &cram = cartridge["chr"]["ram"];
-
-  prgrom.size = numeral(prom["size"].data);
-  prgram.size = numeral(pram["size"].data);
-  chrrom.size = numeral(crom["size"].data);
-  chrram.size = numeral(cram["size"].data);
-
-  if(prgrom.size) prgrom.data = new uint8[prgrom.size]();
-  if(prgram.size) prgram.data = new uint8[prgram.size]();
-  if(chrrom.size) chrrom.data = new uint8[chrrom.size]();
-  if(chrram.size) chrram.data = new uint8[chrram.size]();
-
-  if(prom["name"].data) interface->loadRequest(ID::ProgramROM, prom["name"].data);
-  if(pram["name"].data) interface->loadRequest(ID::ProgramRAM, pram["name"].data);
-  if(crom["name"].data) interface->loadRequest(ID::CharacterROM, crom["name"].data);
-  if(cram["name"].data) interface->loadRequest(ID::CharacterRAM, cram["name"].data);
-
-  if(pram["name"].data) Famicom::cartridge.memory.append({ID::ProgramRAM, pram["name"].data});
-  if(cram["name"].data) Famicom::cartridge.memory.append({ID::CharacterRAM, cram["name"].data});
-
-  prgram.writable = true;
-  chrram.writable = true;
-}
-
-Board::~Board() {
-}
-
-Board* Board::load(const string &manifest) {
-  XML::Document document(manifest);
-  string type = document["cartridge"]["board"]["type"].data;
-
-  if(type == "BANDAI-FCG"  ) return new BandaiFCG(document);
-
-  if(type == "KONAMI-VRC-1") return new KonamiVRC1(document);
-  if(type == "KONAMI-VRC-2") return new KonamiVRC2(document);
-  if(type == "KONAMI-VRC-3") return new KonamiVRC3(document);
-  if(type == "KONAMI-VRC-4") return new KonamiVRC4(document);
-  if(type == "KONAMI-VRC-6") return new KonamiVRC6(document);
-  if(type == "KONAMI-VRC-7") return new KonamiVRC7(document);
-
-  if(type == "NES-AMROM"   ) return new NES_AxROM(document);
-  if(type == "NES-ANROM"   ) return new NES_AxROM(document);
-  if(type == "NES-AN1ROM"  ) return new NES_AxROM(document);
-  if(type == "NES-AOROM"   ) return new NES_AxROM(document);
-
-  if(type == "NES-BNROM"   ) return new NES_BNROM(document);
-
-  if(type == "NES-CNROM"   ) return new NES_CNROM(document);
-
-  if(type == "NES-EKROM"   ) return new NES_ExROM(document);
-  if(type == "NES-ELROM"   ) return new NES_ExROM(document);
-  if(type == "NES-ETROM"   ) return new NES_ExROM(document);
-  if(type == "NES-EWROM"   ) return new NES_ExROM(document);
-
-  if(type == "NES-FJROM"   ) return new NES_FxROM(document);
-  if(type == "NES-FKROM"   ) return new NES_FxROM(document);
-
-  if(type == "NES-GNROM"   ) return new NES_GxROM(document);
-  if(type == "NES-MHROM"   ) return new NES_GxROM(document);
-
-  if(type == "NES-HKROM"   ) return new NES_HKROM(document);
-
-  if(type == "NES-NROM-128") return new NES_NROM(document);
-  if(type == "NES-NROM-256") return new NES_NROM(document);
-
-  if(type == "NES-PEEOROM" ) return new NES_PxROM(document);
-  if(type == "NES-PNROM"   ) return new NES_PxROM(document);
-
-  if(type == "NES-SNROM"   ) return new NES_SxROM(document);
-  if(type == "NES-SXROM"   ) return new NES_SxROM(document);
-
-  if(type == "NES-TLROM"   ) return new NES_TxROM(document);
-
-  if(type == "NES-UNROM"   ) return new NES_UxROM(document);
-  if(type == "NES-UOROM"   ) return new NES_UxROM(document);
-
-  if(type == "SUNSOFT-5B"  ) return new Sunsoft5B(document);
-
-  return nullptr;
-}

bsnes/fc/cartridge/board/board.hpp

@@ -1,46 +0,0 @@
-struct Board {
-  struct Memory {
-    uint8_t *data;
-    unsigned size;
-    bool writable;
-
-    inline uint8 read(unsigned addr) const;
-    inline void write(unsigned addr, uint8 data);
-
-    inline Memory(uint8_t *data, unsigned size) : data(data), size(size) {}
-    inline Memory() : data(nullptr), size(0u), writable(false) {}
-    inline ~Memory() { if(data) delete[] data; }
-  };
-
-  static unsigned mirror(unsigned addr, unsigned size);
-
-  virtual void main();
-  virtual void tick();
-
-  virtual uint8 prg_read(unsigned addr) = 0;
-  virtual void prg_write(unsigned addr, uint8 data) = 0;
-
-  virtual uint8 chr_read(unsigned addr);
-  virtual void chr_write(unsigned addr, uint8 data);
-
-  virtual inline void scanline(unsigned y) {}
-
-  virtual void power();
-  virtual void reset();
-
-  virtual void serialize(serializer&);
-  Board(XML::Document &document);
-  virtual ~Board();
-
-  static Board* load(const string &manifest);
-
-  struct Information {
-    string type;
-    bool battery;
-  } information;
-
-  Memory prgrom;
-  Memory prgram;
-  Memory chrrom;
-  Memory chrram;
-};

bsnes/fc/cartridge/board/konami-vrc1.cpp

@@ -1,40 +0,0 @@
-struct KonamiVRC1 : Board {
-
-VRC1 vrc1;
-
-uint8 prg_read(unsigned addr) {
-  if(addr & 0x8000) return prgrom.read(vrc1.prg_addr(addr));
-  return cpu.mdr();
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if(addr & 0x8000) return vrc1.reg_write(addr, data);
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) return ppu.ciram_read(vrc1.ciram_addr(addr));
-  return Board::chr_read(vrc1.chr_addr(addr));
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) return ppu.ciram_write(vrc1.ciram_addr(addr), data);
-  return Board::chr_write(vrc1.chr_addr(addr), data);
-}
-
-void power() {
-  vrc1.power();
-}
-
-void reset() {
-  vrc1.reset();
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-  vrc1.serialize(s);
-}
-
-KonamiVRC1(XML::Document &document) : Board(document), vrc1(*this) {
-}
-
-};

bsnes/fc/cartridge/board/konami-vrc2.cpp

@@ -1,57 +0,0 @@
-struct KonamiVRC2 : Board {
-
-struct Settings {
-  struct Pinout {
-    unsigned a0;
-    unsigned a1;
-  } pinout;
-} settings;
-
-VRC2 vrc2;
-
-uint8 prg_read(unsigned addr) {
-  if(addr < 0x6000) return cpu.mdr();
-  if(addr < 0x8000) return vrc2.ram_read(addr);
-  return prgrom.read(vrc2.prg_addr(addr));
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if(addr < 0x6000) return;
-  if(addr < 0x8000) return vrc2.ram_write(addr, data);
-
-  bool a0 = (addr & settings.pinout.a0);
-  bool a1 = (addr & settings.pinout.a1);
-  addr &= 0xfff0;
-  addr |= (a0 << 0) | (a1 << 1);
-  return vrc2.reg_write(addr, data);
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) return ppu.ciram_read(vrc2.ciram_addr(addr));
-  return Board::chr_read(vrc2.chr_addr(addr));
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) return ppu.ciram_write(vrc2.ciram_addr(addr), data);
-  return Board::chr_write(vrc2.chr_addr(addr), data);
-}
-
-void power() {
-  vrc2.power();
-}
-
-void reset() {
-  vrc2.reset();
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-  vrc2.serialize(s);
-}
-
-KonamiVRC2(XML::Document &document) : Board(document), vrc2(*this) {
-  settings.pinout.a0 = 1 << decimal(document["cartridge"]["chip"]["pinout"]["a0"].data);
-  settings.pinout.a1 = 1 << decimal(document["cartridge"]["chip"]["pinout"]["a1"].data);
-}
-
-};

bsnes/fc/cartridge/board/konami-vrc3.cpp

@@ -1,57 +0,0 @@
-struct KonamiVRC3 : Board {
-
-struct Settings {
-  bool mirror;  //0 = horizontal, 1 = vertical
-} settings;
-
-VRC3 vrc3;
-
-void main() {
-  vrc3.main();
-}
-
-uint8 prg_read(unsigned addr) {
-  if((addr & 0xe000) == 0x6000) return prgram.read(addr & 0x1fff);
-  if(addr & 0x8000) return prgrom.read(vrc3.prg_addr(addr));
-  return cpu.mdr();
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if((addr & 0xe000) == 0x6000) return prgram.write(addr & 0x1fff, data);
-  if(addr & 0x8000) return vrc3.reg_write(addr, data);
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) {
-    if(settings.mirror == 0) addr = ((addr & 0x0800) >> 1) | (addr & 0x03ff);
-    return ppu.ciram_read(addr & 0x07ff);
-  }
-  return chrram.read(addr);
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) {
-    if(settings.mirror == 0) addr = ((addr & 0x0800) >> 1) | (addr & 0x03ff);
-    return ppu.ciram_write(addr & 0x07ff, data);
-  }
-  return chrram.write(addr, data);
-}
-
-void power() {
-  vrc3.power();
-}
-
-void reset() {
-  vrc3.reset();
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-  vrc3.serialize(s);
-}
-
-KonamiVRC3(XML::Document &document) : Board(document), vrc3(*this) {
-  settings.mirror = document["cartridge"]["mirror"]["mode"].data == "vertical" ? 1 : 0;
-}
-
-};

bsnes/fc/cartridge/board/konami-vrc4.cpp

@@ -1,61 +0,0 @@
-struct KonamiVRC4 : Board {
-
-struct Settings {
-  struct Pinout {
-    unsigned a0;
-    unsigned a1;
-  } pinout;
-} settings;
-
-VRC4 vrc4;
-
-void main() {
-  return vrc4.main();
-}
-
-uint8 prg_read(unsigned addr) {
-  if(addr < 0x6000) return cpu.mdr();
-  if(addr < 0x8000) return prgram.read(addr);
-  return prgrom.read(vrc4.prg_addr(addr));
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if(addr < 0x6000) return;
-  if(addr < 0x8000) return prgram.write(addr, data);
-
-  bool a0 = (addr & settings.pinout.a0);
-  bool a1 = (addr & settings.pinout.a1);
-  addr &= 0xfff0;
-  addr |= (a1 << 1) | (a0 << 0);
-  return vrc4.reg_write(addr, data);
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) return ppu.ciram_read(vrc4.ciram_addr(addr));
-  return Board::chr_read(vrc4.chr_addr(addr));
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) return ppu.ciram_write(vrc4.ciram_addr(addr), data);
-  return Board::chr_write(vrc4.chr_addr(addr), data);
-}
-
-void power() {
-  vrc4.power();
-}
-
-void reset() {
-  vrc4.reset();
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-  vrc4.serialize(s);
-}
-
-KonamiVRC4(XML::Document &document) : Board(document), vrc4(*this) {
-  settings.pinout.a0 = 1 << decimal(document["cartridge"]["chip"]["pinout"]["a0"].data);
-  settings.pinout.a1 = 1 << decimal(document["cartridge"]["chip"]["pinout"]["a1"].data);
-}
-
-};

bsnes/fc/cartridge/board/konami-vrc6.cpp

@@ -1,42 +0,0 @@
-struct KonamiVRC6 : Board {
-
-VRC6 vrc6;
-
-uint8 prg_read(unsigned addr) {
-  if((addr & 0xe000) == 0x6000) return vrc6.ram_read(addr);
-  if(addr & 0x8000) return prgrom.read(vrc6.prg_addr(addr));
-  return cpu.mdr();
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if((addr & 0xe000) == 0x6000) return vrc6.ram_write(addr, data);
-  if(addr & 0x8000) {
-    addr = (addr & 0xf003);
-    if(prgram.size) addr = (addr & ~3) | ((addr & 2) >> 1) | ((addr & 1) << 1);
-    return vrc6.reg_write(addr, data);
-  }
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) return ppu.ciram_read(vrc6.ciram_addr(addr));
-  return Board::chr_read(vrc6.chr_addr(addr));
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) return ppu.ciram_write(vrc6.ciram_addr(addr), data);
-  return Board::chr_write(vrc6.chr_addr(addr), data);
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-  vrc6.serialize(s);
-}
-
-void main() { vrc6.main(); }
-void power() { vrc6.power(); }
-void reset() { vrc6.reset(); }
-
-KonamiVRC6(XML::Document &document) : Board(document), vrc6(*this) {
-}
-
-};

bsnes/fc/cartridge/board/konami-vrc7.cpp

@@ -1,47 +0,0 @@
-struct KonamiVRC7 : Board {
-
-VRC7 vrc7;
-
-void main() {
-  return vrc7.main();
-}
-
-uint8 prg_read(unsigned addr) {
-  if(addr < 0x6000) return cpu.mdr();
-  if(addr < 0x8000) return prgram.read(addr);
-  return prgrom.read(vrc7.prg_addr(addr));
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if(addr < 0x6000) return;
-  if(addr < 0x8000) return prgram.write(addr, data);
-  return vrc7.reg_write(addr, data);
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) return ppu.ciram_read(vrc7.ciram_addr(addr));
-  return chrram.read(vrc7.chr_addr(addr));
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) return ppu.ciram_write(vrc7.ciram_addr(addr), data);
-  return chrram.write(vrc7.chr_addr(addr), data);
-}
-
-void power() {
-  vrc7.power();
-}
-
-void reset() {
-  vrc7.reset();
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-  vrc7.serialize(s);
-}
-
-KonamiVRC7(XML::Document &document) : Board(document), vrc7(*this) {
-}
-
-};

bsnes/fc/cartridge/board/nes-axrom.cpp

@@ -1,51 +0,0 @@
-//NES-AMROM
-//NES-ANROM
-//NES-AN1ROM
-//NES-AOROM
-
-struct NES_AxROM : Board {
-
-uint4 prg_bank;
-bool mirror_select;
-
-uint8 prg_read(unsigned addr) {
-  if(addr & 0x8000) return prgrom.read((prg_bank << 15) | (addr & 0x7fff));
-  return cpu.mdr();
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if(addr & 0x8000) {
-    prg_bank = data & 0x0f;
-    mirror_select = data & 0x10;
-  }
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) return ppu.ciram_read((mirror_select << 10) | (addr & 0x03ff));
-  return Board::chr_read(addr);
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) return ppu.ciram_write((mirror_select << 10) | (addr & 0x03ff), data);
-  return Board::chr_write(addr, data);
-}
-
-void power() {
-}
-
-void reset() {
-  prg_bank = 0x0f;
-  mirror_select = 0;
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-
-  s.integer(prg_bank);
-  s.integer(mirror_select);
-}
-
-NES_AxROM(XML::Document &document) : Board(document) {
-}
-
-};

bsnes/fc/cartridge/board/nes-bnrom.cpp

@@ -1,52 +0,0 @@
-//NES-BN-ROM-01
-
-struct NES_BNROM : Board {
-
-struct Settings {
-  bool mirror;  //0 = horizontal, 1 = vertical
-} settings;
-
-uint2 prg_bank;
-
-uint8 prg_read(unsigned addr) {
-  if(addr & 0x8000) return prgrom.read((prg_bank << 15) | (addr & 0x7fff));
-  return cpu.mdr();
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if(addr & 0x8000) prg_bank = data & 0x03;
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) {
-    if(settings.mirror == 0) addr = ((addr & 0x0800) >> 1) | (addr & 0x03ff);
-    return ppu.ciram_read(addr);
-  }
-  return Board::chr_read(addr);
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) {
-    if(settings.mirror == 0) addr = ((addr & 0x0800) >> 1) | (addr & 0x03ff);
-    return ppu.ciram_write(addr, data);
-  }
-  return Board::chr_write(addr, data);
-}
-
-void power() {
-}
-
-void reset() {
-  prg_bank = 0;
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-  s.integer(prg_bank);
-}
-
-NES_BNROM(XML::Document &document) : Board(document) {
-  settings.mirror = document["cartridge"]["mirror"]["mode"].data == "vertical" ? 1 : 0;
-}
-
-};

bsnes/fc/cartridge/board/nes-cnrom.cpp

@@ -1,54 +0,0 @@
-//NES-CNROM
-
-struct NES_CNROM : Board {
-
-struct Settings {
-  bool mirror;  //0 = horizontal, 1 = vertical
-} settings;
-
-uint2 chr_bank;
-
-uint8 prg_read(unsigned addr) {
-  if(addr & 0x8000) return prgrom.read(addr & 0x7fff);
-  return cpu.mdr();
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if(addr & 0x8000) chr_bank = data & 0x03;
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) {
-    if(settings.mirror == 0) addr = ((addr & 0x0800) >> 1) | (addr & 0x03ff);
-    return ppu.ciram_read(addr & 0x07ff);
-  }
-  addr = (chr_bank * 0x2000) + (addr & 0x1fff);
-  return Board::chr_read(addr);
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) {
-    if(settings.mirror == 0) addr = ((addr & 0x0800) >> 1) | (addr & 0x03ff);
-    return ppu.ciram_write(addr & 0x07ff, data);
-  }
-  addr = (chr_bank * 0x2000) + (addr & 0x1fff);
-  Board::chr_write(addr, data);
-}
-
-void power() {
-}
-
-void reset() {
-  chr_bank = 0;
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-  s.integer(chr_bank);
-}
-
-NES_CNROM(XML::Document &document) : Board(document) {
-  settings.mirror = document["cartridge"]["mirror"]["mode"].data == "vertical" ? 1 : 0;
-}
-
-};

bsnes/fc/cartridge/board/nes-exrom.cpp

@@ -1,53 +0,0 @@
-struct NES_ExROM : Board {
-
-enum class Revision : unsigned {
-  EKROM,
-  ELROM,
-  ETROM,
-  EWROM,
-} revision;
-
-MMC5 mmc5;
-
-void main() {
-  mmc5.main();
-}
-
-uint8 prg_read(unsigned addr) {
-  return mmc5.prg_read(addr);
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  mmc5.prg_write(addr, data);
-}
-
-uint8 chr_read(unsigned addr) {
-  return mmc5.chr_read(addr);
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  mmc5.chr_write(addr, data);
-}
-
-void scanline(unsigned y) {
-  mmc5.scanline(y);
-}
-
-void power() {
-  mmc5.power();
-}
-
-void reset() {
-  mmc5.reset();
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-  mmc5.serialize(s);
-}
-
-NES_ExROM(XML::Document &document) : Board(document), mmc5(*this) {
-  revision = Revision::ELROM;
-}
-
-};

bsnes/fc/cartridge/board/nes-fxrom.cpp

@@ -1,91 +0,0 @@
-//MMC4
-
-struct NES_FxROM : Board {
-
-enum Revision : unsigned {
-  FJROM,
-  FKROM,
-} revision;
-
-uint4 prg_bank;
-uint5 chr_bank[2][2];
-bool mirror;
-bool latch[2];
-
-uint8 prg_read(unsigned addr) {
-  if(addr < 0x6000) return cpu.mdr();
-  if(addr < 0x8000) return prgram.read(addr);
-  unsigned bank = addr < 0xc000 ? prg_bank : (uint4)0x0f;
-  return prgrom.read((bank * 0x4000) | (addr & 0x3fff));
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if(addr < 0x6000) return;
-  if(addr < 0x8000) return prgram.write(addr, data);
-
-  switch(addr & 0xf000) {
-  case 0xa000: prg_bank = data & 0x0f; break;
-  case 0xb000: chr_bank[0][0] = data & 0x1f; break;
-  case 0xc000: chr_bank[0][1] = data & 0x1f; break;
-  case 0xd000: chr_bank[1][0] = data & 0x1f; break;
-  case 0xe000: chr_bank[1][1] = data & 0x1f; break;
-  case 0xf000: mirror = data & 0x01; break;
-  }
-}
-
-unsigned ciram_addr(unsigned addr) const {
-  switch(mirror) {
-  case 0: return ((addr & 0x0400) >> 0) | (addr & 0x03ff);  //vertical mirroring
-  case 1: return ((addr & 0x0800) >> 1) | (addr & 0x03ff);  //horizontal mirroring
-  }
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) return ppu.ciram_read(ciram_addr(addr));
-  bool region = addr & 0x1000;
-  unsigned bank = chr_bank[region][latch[region]];
-  if((addr & 0x0ff8) == 0x0fd8) latch[region] = 0;
-  if((addr & 0x0ff8) == 0x0fe8) latch[region] = 1;
-  return Board::chr_read((bank * 0x1000) | (addr & 0x0fff));
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) return ppu.ciram_write(ciram_addr(addr), data);
-  bool region = addr & 0x1000;
-  unsigned bank = chr_bank[region][latch[region]];
-  if((addr & 0x0ff8) == 0x0fd8) latch[region] = 0;
-  if((addr & 0x0ff8) == 0x0fe8) latch[region] = 1;
-  return Board::chr_write((bank * 0x1000) | (addr & 0x0fff), data);
-}
-
-void power() {
-}
-
-void reset() {
-  prg_bank = 0;
-  chr_bank[0][0] = 0;
-  chr_bank[0][1] = 0;
-  chr_bank[1][0] = 0;
-  chr_bank[1][1] = 0;
-  mirror = 0;
-  latch[0] = 0;
-  latch[1] = 0;
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-
-  s.integer(prg_bank);
-  s.integer(chr_bank[0][0]);
-  s.integer(chr_bank[0][1]);
-  s.integer(chr_bank[1][0]);
-  s.integer(chr_bank[1][1]);
-  s.integer(mirror);
-  s.array(latch);
-}
-
-NES_FxROM(XML::Document &document) : Board(document) {
-  revision = Revision::FKROM;
-}
-
-};

bsnes/fc/cartridge/board/nes-gxrom.cpp

@@ -1,61 +0,0 @@
-//NES-GNROM
-//NES-MHROM
-
-struct NES_GxROM : Board {
-
-struct Settings {
-  bool mirror;  //0 = horizontal, 1 = vertical
-} settings;
-
-uint2 prg_bank;
-uint2 chr_bank;
-
-uint8 prg_read(unsigned addr) {
-  if(addr & 0x8000) return prgrom.read((prg_bank << 15) | (addr & 0x7fff));
-  return cpu.mdr();
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if(addr & 0x8000) {
-    prg_bank = (data & 0x30) >> 4;
-    chr_bank = (data & 0x03) >> 0;
-  }
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) {
-    if(settings.mirror == 0) addr = ((addr & 0x0800) >> 1) | (addr & 0x03ff);
-    return ppu.ciram_read(addr & 0x07ff);
-  }
-  addr = (chr_bank * 0x2000) + (addr & 0x1fff);
-  return Board::chr_read(addr);
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) {
-    if(settings.mirror == 0) addr = ((addr & 0x0800) >> 1) | (addr & 0x03ff);
-    return ppu.ciram_write(addr & 0x07ff, data);
-  }
-  addr = (chr_bank * 0x2000) + (addr & 0x1fff);
-  Board::chr_write(addr, data);
-}
-
-void power() {
-}
-
-void reset() {
-  prg_bank = 0;
-  chr_bank = 0;
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-  s.integer(prg_bank);
-  s.integer(chr_bank);
-}
-
-NES_GxROM(XML::Document &document) : Board(document) {
-  settings.mirror = document["cartridge"]["mirror"]["mode"].data == "vertical" ? 1 : 0;
-}
-
-};

bsnes/fc/cartridge/board/nes-hkrom.cpp

@@ -1,48 +0,0 @@
-struct NES_HKROM : Board {
-
-MMC6 mmc6;
-
-void main() {
-  mmc6.main();
-}
-
-uint8 prg_read(unsigned addr) {
-  if((addr & 0xf000) == 0x7000) return mmc6.ram_read(addr);
-  if(addr & 0x8000) return prgrom.read(mmc6.prg_addr(addr));
-  return cpu.mdr();
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if((addr & 0xf000) == 0x7000) return mmc6.ram_write(addr, data);
-  if(addr & 0x8000) return mmc6.reg_write(addr, data);
-}
-
-uint8 chr_read(unsigned addr) {
-  mmc6.irq_test(addr);
-  if(addr & 0x2000) return ppu.ciram_read(mmc6.ciram_addr(addr));
-  return Board::chr_read(mmc6.chr_addr(addr));
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  mmc6.irq_test(addr);
-  if(addr & 0x2000) return ppu.ciram_write(mmc6.ciram_addr(addr), data);
-  return Board::chr_write(mmc6.chr_addr(addr), data);
-}
-
-void power() {
-  mmc6.power();
-}
-
-void reset() {
-  mmc6.reset();
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-  mmc6.serialize(s);
-}
-
-NES_HKROM(XML::Document &document) : Board(document), mmc6(*this) {
-}
-
-};

bsnes/fc/cartridge/board/nes-nrom.cpp

@@ -1,43 +0,0 @@
-//NES-NROM-128
-//NES-NROM-256
-
-struct NES_NROM : Board {
-
-struct Settings {
-  bool mirror;  //0 = horizontal, 1 = vertical
-} settings;
-
-uint8 prg_read(unsigned addr) {
-  if(addr & 0x8000) return prgrom.read(addr);
-  return cpu.mdr();
-}
-
-void prg_write(unsigned addr, uint8 data) {
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) {
-    if(settings.mirror == 0) addr = ((addr & 0x0800) >> 1) | (addr & 0x03ff);
-    return ppu.ciram_read(addr & 0x07ff);
-  }
-  if(chrram.size) return chrram.read(addr);
-  return chrrom.read(addr);
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) {
-    if(settings.mirror == 0) addr = ((addr & 0x0800) >> 1) | (addr & 0x03ff);
-    return ppu.ciram_write(addr & 0x07ff, data);
-  }
-  if(chrram.size) return chrram.write(addr, data);
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-}
-
-NES_NROM(XML::Document &document) : Board(document) {
-  settings.mirror = document["cartridge"]["mirror"]["mode"].data == "vertical" ? 1 : 0;
-}
-
-};

bsnes/fc/cartridge/board/nes-pxrom.cpp

@@ -1,97 +0,0 @@
-//MMC2
-
-struct NES_PxROM : Board {
-
-enum Revision : unsigned {
-  PEEOROM,
-  PNROM,
-} revision;
-
-uint4 prg_bank;
-uint5 chr_bank[2][2];
-bool mirror;
-bool latch[2];
-
-uint8 prg_read(unsigned addr) {
-  if(addr < 0x6000) return cpu.mdr();
-  if(addr < 0x8000) return prgram.read(addr);
-  unsigned bank = 0;
-  switch((addr / 0x2000) & 3) {
-  case 0: bank = prg_bank; break;
-  case 1: bank = 0x0d; break;
-  case 2: bank = 0x0e; break;
-  case 3: bank = 0x0f; break;
-  }
-  return prgrom.read((bank * 0x2000) | (addr & 0x1fff));
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if(addr < 0x6000) return;
-  if(addr < 0x8000) return prgram.write(addr, data);
-
-  switch(addr & 0xf000) {
-  case 0xa000: prg_bank = data & 0x0f; break;
-  case 0xb000: chr_bank[0][0] = data & 0x1f; break;
-  case 0xc000: chr_bank[0][1] = data & 0x1f; break;
-  case 0xd000: chr_bank[1][0] = data & 0x1f; break;
-  case 0xe000: chr_bank[1][1] = data & 0x1f; break;
-  case 0xf000: mirror = data & 0x01; break;
-  }
-}
-
-unsigned ciram_addr(unsigned addr) const {
-  switch(mirror) {
-  case 0: return ((addr & 0x0400) >> 0) | (addr & 0x03ff);  //vertical mirroring
-  case 1: return ((addr & 0x0800) >> 1) | (addr & 0x03ff);  //horizontal mirroring
-  }
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) return ppu.ciram_read(ciram_addr(addr));
-  bool region = addr & 0x1000;
-  unsigned bank = chr_bank[region][latch[region]];
-  if((addr & 0x0ff8) == 0x0fd8) latch[region] = 0;
-  if((addr & 0x0ff8) == 0x0fe8) latch[region] = 1;
-  return Board::chr_read((bank * 0x1000) | (addr & 0x0fff));
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) return ppu.ciram_write(ciram_addr(addr), data);
-  bool region = addr & 0x1000;
-  unsigned bank = chr_bank[region][latch[region]];
-  if((addr & 0x0ff8) == 0x0fd8) latch[region] = 0;
-  if((addr & 0x0ff8) == 0x0fe8) latch[region] = 1;
-  return Board::chr_write((bank * 0x1000) | (addr & 0x0fff), data);
-}
-
-void power() {
-}
-
-void reset() {
-  prg_bank = 0;
-  chr_bank[0][0] = 0;
-  chr_bank[0][1] = 0;
-  chr_bank[1][0] = 0;
-  chr_bank[1][1] = 0;
-  mirror = 0;
-  latch[0] = 0;
-  latch[1] = 0;
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-
-  s.integer(prg_bank);
-  s.integer(chr_bank[0][0]);
-  s.integer(chr_bank[0][1]);
-  s.integer(chr_bank[1][0]);
-  s.integer(chr_bank[1][1]);
-  s.integer(mirror);
-  s.array(latch);
-}
-
-NES_PxROM(XML::Document &document) : Board(document) {
-  revision = Revision::PNROM;
-}
-
-};

bsnes/fc/cartridge/board/nes-sxrom.cpp

@@ -1,101 +0,0 @@
-struct NES_SxROM : Board {
-
-enum class Revision : unsigned {
-  SAROM,
-  SBROM,
-  SCROM,
-  SC1ROM,
-  SEROM,
-  SFROM,
-  SGROM,
-  SHROM,
-  SH1ROM,
-  SIROM,
-  SJROM,
-  SKROM,
-  SLROM,
-  SL1ROM,
-  SL2ROM,
-  SL3ROM,
-  SLRROM,
-  SMROM,
-  SNROM,
-  SOROM,
-  SUROM,
-  SXROM,
-} revision;
-
-MMC1 mmc1;
-
-void main() {
-  return mmc1.main();
-}
-
-unsigned ram_addr(unsigned addr) {
-  unsigned bank = 0;
-  if(revision == Revision::SOROM) bank = (mmc1.chr_bank[0] & 0x08) >> 3;
-  if(revision == Revision::SUROM) bank = (mmc1.chr_bank[0] & 0x0c) >> 2;
-  if(revision == Revision::SXROM) bank = (mmc1.chr_bank[0] & 0x0c) >> 2;
-  return (bank << 13) | (addr & 0x1fff);
-}
-
-uint8 prg_read(unsigned addr) {
-  if((addr & 0xe000) == 0x6000) {
-    if(revision == Revision::SNROM) {
-      if(mmc1.chr_bank[0] & 0x10) return cpu.mdr();
-    }
-    if(mmc1.ram_disable) return 0x00;
-    return prgram.read(ram_addr(addr));
-  }
-
-  if(addr & 0x8000) {
-    addr = mmc1.prg_addr(addr);
-    if(revision == Revision::SXROM) {
-      addr |= ((mmc1.chr_bank[0] & 0x10) >> 4) << 18;
-    }
-    return prgrom.read(addr);
-  }
-
-  return cpu.mdr();
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if((addr & 0xe000) == 0x6000) {
-    if(revision == Revision::SNROM) {
-      if(mmc1.chr_bank[0] & 0x10) return;
-    }
-    if(mmc1.ram_disable) return;
-    return prgram.write(ram_addr(addr), data);
-  }
-
-  if(addr & 0x8000) return mmc1.mmio_write(addr, data);
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) return ppu.ciram_read(mmc1.ciram_addr(addr));
-  return Board::chr_read(mmc1.chr_addr(addr));
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) return ppu.ciram_write(mmc1.ciram_addr(addr), data);
-  return Board::chr_write(mmc1.chr_addr(addr), data);
-}
-
-void power() {
-  mmc1.power();
-}
-
-void reset() {
-  mmc1.reset();
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-  mmc1.serialize(s);
-}
-
-NES_SxROM(XML::Document &document) : Board(document), mmc1(*this) {
-  revision = Revision::SXROM;
-}
-
-};

bsnes/fc/cartridge/board/nes-txrom.cpp

@@ -1,67 +0,0 @@
-struct NES_TxROM : Board {
-
-enum class Revision : unsigned {
-  TBROM,
-  TEROM,
-  TFROM,
-  TGROM,
-  TKROM,
-  TKSROM,
-  TLROM,
-  TL1ROM,
-  TL2ROM,
-  TLSROM,
-  TNROM,
-  TQROM,
-  TR1ROM,
-  TSROM,
-  TVROM,
-} revision;
-
-MMC3 mmc3;
-
-void main() {
-  mmc3.main();
-}
-
-uint8 prg_read(unsigned addr) {
-  if((addr & 0xe000) == 0x6000) return mmc3.ram_read(addr);
-  if(addr & 0x8000) return prgrom.read(mmc3.prg_addr(addr));
-  return cpu.mdr();
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if((addr & 0xe000) == 0x6000) return mmc3.ram_write(addr, data);
-  if(addr & 0x8000) return mmc3.reg_write(addr, data);
-}
-
-uint8 chr_read(unsigned addr) {
-  mmc3.irq_test(addr);
-  if(addr & 0x2000) return ppu.ciram_read(mmc3.ciram_addr(addr));
-  return Board::chr_read(mmc3.chr_addr(addr));
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  mmc3.irq_test(addr);
-  if(addr & 0x2000) return ppu.ciram_write(mmc3.ciram_addr(addr), data);
-  return Board::chr_write(mmc3.chr_addr(addr), data);
-}
-
-void power() {
-  mmc3.power();
-}
-
-void reset() {
-  mmc3.reset();
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-  mmc3.serialize(s);
-}
-
-NES_TxROM(XML::Document &document) : Board(document), mmc3(*this) {
-  revision = Revision::TLROM;
-}
-
-};

bsnes/fc/cartridge/board/nes-uxrom.cpp

@@ -1,55 +0,0 @@
-//NES-UNROM
-//NES-UOROM
-
-struct NES_UxROM : Board {
-
-struct Settings {
-  bool mirror;  //0 = horizontal, 1 = vertical
-} settings;
-
-uint4 prg_bank;
-
-uint8 prg_read(unsigned addr) {
-  if((addr & 0xc000) == 0x8000) return prgrom.read((prg_bank << 14) | (addr & 0x3fff));
-  if((addr & 0xc000) == 0xc000) return prgrom.read((    0x0f << 14) | (addr & 0x3fff));
-  return cpu.mdr();
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if(addr & 0x8000) prg_bank = data & 0x0f;
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) {
-    if(settings.mirror == 0) addr = ((addr & 0x0800) >> 1) | (addr & 0x03ff);
-    return ppu.ciram_read(addr);
-  }
-  return Board::chr_read(addr);
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) {
-    if(settings.mirror == 0) addr = ((addr & 0x0800) >> 1) | (addr & 0x03ff);
-    return ppu.ciram_write(addr, data);
-  }
-  return Board::chr_write(addr, data);
-}
-
-void power() {
-}
-
-void reset() {
-  prg_bank = 0;
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-
-  s.integer(prg_bank);
-}
-
-NES_UxROM(XML::Document &document) : Board(document) {
-  settings.mirror = document["cartridge"]["mirror"]["mode"].data == "vertical" ? 1 : 0;
-}
-
-};

bsnes/fc/cartridge/board/sunsoft-5b.cpp

@@ -1,226 +0,0 @@
-//SUNSOFT-5B
-
-struct Sunsoft5B : Board {
-
-uint4 mmu_port;
-uint4 apu_port;
-
-uint8 prg_bank[4];
-uint8 chr_bank[8];
-uint2 mirror;
-bool irq_enable;
-bool irq_counter_enable;
-uint16 irq_counter;
-
-int16 dac[16];
-
-struct Pulse {
-  bool disable;
-  uint12 frequency;
-  uint4 volume;
-
-  uint16 counter;  //12-bit countdown + 4-bit phase
-  uint1 duty;
-  uint4 output;
-
-  void clock() {
-    if(--counter == 0) {
-      counter = frequency << 4;
-      duty ^= 1;
-    }
-    output = duty ? volume : (uint4)0;
-    if(disable) output = 0;
-  }
-
-  void reset() {
-    disable = 1;
-    frequency = 1;
-    volume = 0;
-
-    counter = 0;
-    duty = 0;
-    output = 0;
-  }
-
-  void serialize(serializer &s) {
-    s.integer(disable);
-    s.integer(frequency);
-    s.integer(volume);
-
-    s.integer(counter);
-    s.integer(duty);
-    s.integer(output);
-  }
-} pulse[3];
-
-void main() {
-  while(true) {
-    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
-      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
-    }
-
-    if(irq_counter_enable) {
-      if(--irq_counter == 0xffff) {
-        cpu.set_irq_line(irq_enable);
-      }
-    }
-
-    pulse[0].clock();
-    pulse[1].clock();
-    pulse[2].clock();
-    int16 output = dac[pulse[0].output] + dac[pulse[1].output] + dac[pulse[2].output];
-    apu.set_sample(-output);
-
-    tick();
-  }
-}
-
-uint8 prg_read(unsigned addr) {
-  if(addr < 0x6000) return cpu.mdr();
-
-  uint8 bank = 0x3f;  //((addr & 0xe000) == 0xe000
-  if((addr & 0xe000) == 0x6000) bank = prg_bank[0];
-  if((addr & 0xe000) == 0x8000) bank = prg_bank[1];
-  if((addr & 0xe000) == 0xa000) bank = prg_bank[2];
-  if((addr & 0xe000) == 0xc000) bank = prg_bank[3];
-
-  bool ram_enable = bank & 0x80;
-  bool ram_select = bank & 0x40;
-  bank &= 0x3f;
-
-  if(ram_select) {
-    if(ram_enable == false) return cpu.mdr();
-    return prgram.data[addr & 0x1fff];
-  }
-
-  addr = (bank << 13) | (addr & 0x1fff);
-  return prgrom.read(addr);
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if((addr & 0xe000) == 0x6000) {
-    prgram.data[addr & 0x1fff] = data;
-  }
-
-  if(addr == 0x8000) {
-    mmu_port = data & 0x0f;
-  }
-
-  if(addr == 0xa000) {
-    switch(mmu_port) {
-    case  0: chr_bank[0] = data; break;
-    case  1: chr_bank[1] = data; break;
-    case  2: chr_bank[2] = data; break;
-    case  3: chr_bank[3] = data; break;
-    case  4: chr_bank[4] = data; break;
-    case  5: chr_bank[5] = data; break;
-    case  6: chr_bank[6] = data; break;
-    case  7: chr_bank[7] = data; break;
-    case  8: prg_bank[0] = data; break;
-    case  9: prg_bank[1] = data; break;
-    case 10: prg_bank[2] = data; break;
-    case 11: prg_bank[3] = data; break;
-    case 12: mirror = data & 3; break;
-    case 13:
-      irq_enable = data & 0x80;
-      irq_counter_enable = data & 0x01;
-      if(irq_enable == 0) cpu.set_irq_line(0);
-      break;
-    case 14: irq_counter = (irq_counter & 0xff00) | (data << 0); break;
-    case 15: irq_counter = (irq_counter & 0x00ff) | (data << 8); break;
-    }
-  }
-
-  if(addr == 0xc000) {
-    apu_port = data & 0x0f;
-  }
-
-  if(addr == 0xe000) {
-    switch(apu_port) {
-    case  0: pulse[0].frequency = (pulse[0].frequency & 0xff00) | (data << 0); break;
-    case  1: pulse[0].frequency = (pulse[0].frequency & 0x00ff) | (data << 8); break;
-    case  2: pulse[1].frequency = (pulse[1].frequency & 0xff00) | (data << 0); break;
-    case  3: pulse[1].frequency = (pulse[1].frequency & 0x00ff) | (data << 8); break;
-    case  4: pulse[2].frequency = (pulse[2].frequency & 0xff00) | (data << 0); break;
-    case  5: pulse[2].frequency = (pulse[2].frequency & 0x00ff) | (data << 8); break;
-    case  7:
-      pulse[0].disable = data & 0x01;
-      pulse[1].disable = data & 0x02;
-      pulse[2].disable = data & 0x04;
-      break;
-    case  8: pulse[0].volume = data & 0x0f; break;
-    case  9: pulse[1].volume = data & 0x0f; break;
-    case 10: pulse[2].volume = data & 0x0f; break;
-    }
-  }
-}
-
-unsigned chr_addr(unsigned addr) {
-  uint8 bank = (addr >> 10) & 7;
-  return (chr_bank[bank] << 10) | (addr & 0x03ff);
-}
-
-unsigned ciram_addr(unsigned addr) {
-  switch(mirror) {
-  case 0: return ((addr & 0x0400) >> 0) | (addr & 0x03ff);  //vertical
-  case 1: return ((addr & 0x0800) >> 1) | (addr & 0x03ff);  //horizontal
-  case 2: return 0x0000 | (addr & 0x03ff);  //first
-  case 3: return 0x0400 | (addr & 0x03ff);  //second
-  }
-}
-
-uint8 chr_read(unsigned addr) {
-  if(addr & 0x2000) return ppu.ciram_read(ciram_addr(addr));
-  return Board::chr_read(chr_addr(addr));
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) return ppu.ciram_write(ciram_addr(addr), data);
-  return Board::chr_write(chr_addr(addr), data);
-}
-
-void power() {
-  for(signed n = 0; n < 16; n++) {
-    double volume = 1.0 / pow(2, 1.0 / 2 * (15 - n));
-    dac[n] = volume * 8192.0;
-  }
-}
-
-void reset() {
-  mmu_port = 0;
-  apu_port = 0;
-
-  for(auto &n : prg_bank) n = 0;
-  for(auto &n : chr_bank) n = 0;
-  mirror = 0;
-  irq_enable = 0;
-  irq_counter_enable = 0;
-  irq_counter = 0;
-
-  pulse[0].reset();
-  pulse[1].reset();
-  pulse[2].reset();
-}
-
-void serialize(serializer &s) {
-  Board::serialize(s);
-
-  s.integer(mmu_port);
-  s.integer(apu_port);
-
-  s.array(prg_bank);
-  s.array(chr_bank);
-  s.integer(mirror);
-  s.integer(irq_enable);
-  s.integer(irq_counter_enable);
-  s.integer(irq_counter);
-
-  pulse[0].serialize(s);
-  pulse[1].serialize(s);
-  pulse[2].serialize(s);
-}
-
-Sunsoft5B(XML::Document &document) : Board(document) {
-}
-
-};

bsnes/fc/cartridge/cartridge.cpp

@@ -1,82 +0,0 @@
-#include <fc/fc.hpp>
-
-namespace Famicom {
-
-#include "chip/chip.cpp"
-#include "board/board.cpp"
-Cartridge cartridge;
-
-void Cartridge::Main() {
-  cartridge.main();
-}
-
-void Cartridge::main() {
-  board->main();
-}
-
-void Cartridge::load(const string &manifest) {
-  information.markup = manifest;
-
-  Board::load(manifest);  //this call will set Cartridge::board if successful
-  if(board == nullptr) return;
-
-  sha256_ctx sha;
-  uint8 hash[32];
-  sha256_init(&sha);
-  sha256_chunk(&sha, board->prgrom.data, board->prgrom.size);
-  sha256_chunk(&sha, board->chrrom.data, board->chrrom.size);
-  sha256_final(&sha);
-  sha256_hash(&sha, hash);
-  string result;
-  for(auto &byte : hash) result.append(hex<2>(byte));
-  sha256 = result;
-
-  system.load();
-  loaded = true;
-}
-
-void Cartridge::unload() {
-  if(loaded == false) return;
-  loaded = false;
-  memory.reset();
-}
-
-void Cartridge::power() {
-  board->power();
-}
-
-void Cartridge::reset() {
-  create(Cartridge::Main, 21477272);
-  board->reset();
-}
-
-Cartridge::Cartridge() {
-  loaded = false;
-}
-
-uint8 Cartridge::prg_read(unsigned addr) {
-  return board->prg_read(addr);
-}
-
-void Cartridge::prg_write(unsigned addr, uint8 data) {
-  return board->prg_write(addr, data);
-}
-
-uint8 Cartridge::chr_read(unsigned addr) {
-  return board->chr_read(addr);
-}
-
-void Cartridge::chr_write(unsigned addr, uint8 data) {
-  return board->chr_write(addr, data);
-}
-
-void Cartridge::scanline(unsigned y) {
-  return board->scanline(y);
-}
-
-void Cartridge::serialize(serializer &s) {
-  Thread::serialize(s);
-  return board->serialize(s);
-}
-
-}

bsnes/fc/cartridge/cartridge.hpp

@@ -1,44 +0,0 @@
-#include "chip/chip.hpp"
-#include "board/board.hpp"
-
-struct Cartridge : Thread, property<Cartridge> {
-  static void Main();
-  void main();
-
-  void load(const string &manifest);
-  void unload();
-
-  void power();
-  void reset();
-
-  readonly<bool> loaded;
-  readonly<string> sha256;
-
-  struct Information {
-    string markup;
-  } information;
-
-  struct Memory {
-    unsigned id;
-    string name;
-  };
-  vector<Memory> memory;
-
-  void serialize(serializer&);
-  Cartridge();
-
-//privileged:
-  Board *board;
-
-  uint8 prg_read(unsigned addr);
-  void prg_write(unsigned addr, uint8 data);
-
-  uint8 chr_read(unsigned addr);
-  void chr_write(unsigned addr, uint8 data);
-
-  //scanline() is for debugging purposes only:
-  //boards must detect scanline edges on their own
-  void scanline(unsigned y);
-};
-
-extern Cartridge cartridge;

bsnes/fc/cartridge/chip/chip.cpp

@@ -1,17 +0,0 @@
-#include "mmc1.cpp"
-#include "mmc3.cpp"
-#include "mmc5.cpp"
-#include "mmc6.cpp"
-#include "vrc1.cpp"
-#include "vrc2.cpp"
-#include "vrc3.cpp"
-#include "vrc4.cpp"
-#include "vrc6.cpp"
-#include "vrc7.cpp"
-
-void Chip::tick() {
-  board.tick();
-}
-
-Chip::Chip(Board &board) : board(board) {
-}

bsnes/fc/cartridge/chip/chip.hpp

@@ -1,7 +0,0 @@
-struct Board;
-
-struct Chip {
-  Board &board;
-  void tick();
-  Chip(Board &board);
-};

bsnes/fc/cartridge/chip/mmc1.cpp

@@ -1,136 +0,0 @@
-struct MMC1 : Chip {
-
-enum class Revision : unsigned {
-  MMC1,
-  MMC1A,
-  MMC1B1,
-  MMC1B2,
-  MMC1B3,
-  MMC1C,
-} revision;
-
-unsigned writedelay;
-unsigned shiftaddr;
-unsigned shiftdata;
-
-bool chr_mode;
-bool prg_size;  //0 = 32K, 1 = 16K
-bool prg_mode;
-uint2 mirror;  //0 = first, 1 = second, 2 = vertical, 3 = horizontal
-uint5 chr_bank[2];
-bool ram_disable;
-uint4 prg_bank;
-
-void main() {
-  while(true) {
-    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
-      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
-    }
-
-    if(writedelay) writedelay--;
-    tick();
-  }
-}
-
-unsigned prg_addr(unsigned addr) {
-  bool region = addr & 0x4000;
-  unsigned bank = (prg_bank & ~1) + region;
-
-  if(prg_size) {
-    bank = (region == 0 ? 0x0 : 0xf);
-    if(region != prg_mode) bank = prg_bank;
-  }
-
-  return (bank << 14) | (addr & 0x3fff);
-}
-
-unsigned chr_addr(unsigned addr) {
-  bool region = addr & 0x1000;
-  unsigned bank = chr_bank[region];
-  if(chr_mode == 0) bank = (chr_bank[0] & ~1) | region;
-  return (bank << 12) | (addr & 0x0fff);
-}
-
-unsigned ciram_addr(unsigned addr) {
-  switch(mirror) {
-  case 0: return 0x0000 | (addr & 0x03ff);
-  case 1: return 0x0400 | (addr & 0x03ff);
-  case 2: return ((addr & 0x0400) >> 0) | (addr & 0x03ff);
-  case 3: return ((addr & 0x0800) >> 1) | (addr & 0x03ff);
-  }
-}
-
-void mmio_write(unsigned addr, uint8 data) {
-  if(writedelay) return;
-  writedelay = 2;
-
-  if(data & 0x80) {
-    shiftaddr = 0;
-    prg_size = 1;
-    prg_mode = 1;
-  } else {
-    shiftdata = ((data & 1) << 4) | (shiftdata >> 1);
-    if(++shiftaddr == 5) {
-      shiftaddr = 0;
-      switch((addr >> 13) & 3) {
-      case 0:
-        chr_mode = (shiftdata & 0x10);
-        prg_size = (shiftdata & 0x08);
-        prg_mode = (shiftdata & 0x04);
-        mirror = (shiftdata & 0x03);
-        break;
-
-      case 1:
-        chr_bank[0] = (shiftdata & 0x1f);
-        break;
-
-      case 2:
-        chr_bank[1] = (shiftdata & 0x1f);
-        break;
-
-      case 3:
-        ram_disable = (shiftdata & 0x10);
-        prg_bank = (shiftdata & 0x0f);
-        break;
-      }
-    }
-  }
-}
-
-void power() {
-}
-
-void reset() {
-  writedelay = 0;
-  shiftaddr = 0;
-  shiftdata = 0;
-
-  chr_mode = 0;
-  prg_size = 1;
-  prg_mode = 1;
-  mirror = 0;
-  chr_bank[0] = 0;
-  chr_bank[1] = 1;
-  ram_disable = 0;
-  prg_bank = 0;
-}
-
-void serialize(serializer &s) {
-  s.integer(writedelay);
-  s.integer(shiftaddr);
-  s.integer(shiftdata);
-
-  s.integer(chr_mode);
-  s.integer(prg_size);
-  s.integer(prg_mode);
-  s.integer(mirror);
-  s.array(chr_bank);
-  s.integer(ram_disable);
-  s.integer(prg_bank);
-}
-
-MMC1(Board &board) : Chip(board) {
-  revision = Revision::MMC1B2;
-}
-
-};

bsnes/fc/cartridge/chip/mmc3.cpp

@@ -1,189 +0,0 @@
-struct MMC3 : Chip {
-
-bool chr_mode;
-bool prg_mode;
-uint3 bank_select;
-uint8 prg_bank[2];
-uint8 chr_bank[6];
-bool mirror;
-bool ram_enable;
-bool ram_write_protect;
-uint8 irq_latch;
-uint8 irq_counter;
-bool irq_enable;
-unsigned irq_delay;
-bool irq_line;
-
-uint16 chr_abus;
-
-void main() {
-  while(true) {
-    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
-      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
-    }
-
-    if(irq_delay) irq_delay--;
-    cpu.set_irq_line(irq_line);
-    tick();
-  }
-}
-
-void irq_test(unsigned addr) {
-  if(!(chr_abus & 0x1000) && (addr & 0x1000)) {
-    if(irq_delay == 0) {
-      if(irq_counter == 0) {
-        irq_counter = irq_latch;
-      } else if(--irq_counter == 0) {
-        if(irq_enable) irq_line = 1;
-      }
-    }
-    irq_delay = 6;
-  }
-  chr_abus = addr;
-}
-
-unsigned prg_addr(unsigned addr) const {
-  switch((addr >> 13) & 3) {
-  case 0:
-    if(prg_mode == 1) return (0x3e << 13) | (addr & 0x1fff);
-    return (prg_bank[0] << 13) | (addr & 0x1fff);
-  case 1:
-    return (prg_bank[1] << 13) | (addr & 0x1fff);
-  case 2:
-    if(prg_mode == 0) return (0x3e << 13) | (addr & 0x1fff);
-    return (prg_bank[0] << 13) | (addr & 0x1fff);
-  case 3:
-    return (0x3f << 13) | (addr & 0x1fff);
-  }
-}
-
-unsigned chr_addr(unsigned addr) const {
-  if(chr_mode == 0) {
-    if(addr <= 0x07ff) return (chr_bank[0] << 10) | (addr & 0x07ff);
-    if(addr <= 0x0fff) return (chr_bank[1] << 10) | (addr & 0x07ff);
-    if(addr <= 0x13ff) return (chr_bank[2] << 10) | (addr & 0x03ff);
-    if(addr <= 0x17ff) return (chr_bank[3] << 10) | (addr & 0x03ff);
-    if(addr <= 0x1bff) return (chr_bank[4] << 10) | (addr & 0x03ff);
-    if(addr <= 0x1fff) return (chr_bank[5] << 10) | (addr & 0x03ff);
-  } else {
-    if(addr <= 0x03ff) return (chr_bank[2] << 10) | (addr & 0x03ff);
-    if(addr <= 0x07ff) return (chr_bank[3] << 10) | (addr & 0x03ff);
-    if(addr <= 0x0bff) return (chr_bank[4] << 10) | (addr & 0x03ff);
-    if(addr <= 0x0fff) return (chr_bank[5] << 10) | (addr & 0x03ff);
-    if(addr <= 0x17ff) return (chr_bank[0] << 10) | (addr & 0x07ff);
-    if(addr <= 0x1fff) return (chr_bank[1] << 10) | (addr & 0x07ff);
-  }
-}
-
-unsigned ciram_addr(unsigned addr) const {
-  if(mirror == 0) return ((addr & 0x0400) >> 0) | (addr & 0x03ff);
-  if(mirror == 1) return ((addr & 0x0800) >> 1) | (addr & 0x03ff);
-}
-
-uint8 ram_read(unsigned addr) {
-  if(ram_enable) return board.prgram.data[addr & 0x1fff];
-  return 0x00;
-}
-
-void ram_write(unsigned addr, uint8 data) {
-  if(ram_enable && !ram_write_protect) board.prgram.data[addr & 0x1fff] = data;
-}
-
-void reg_write(unsigned addr, uint8 data) {
-  switch(addr & 0xe001) {
-  case 0x8000:
-    chr_mode = data & 0x80;
-    prg_mode = data & 0x40;
-    bank_select = data & 0x07;
-    break;
-
-  case 0x8001:
-    switch(bank_select) {
-    case 0: chr_bank[0] = data & ~1; break;
-    case 1: chr_bank[1] = data & ~1; break;
-    case 2: chr_bank[2] = data; break;
-    case 3: chr_bank[3] = data; break;
-    case 4: chr_bank[4] = data; break;
-    case 5: chr_bank[5] = data; break;
-    case 6: prg_bank[0] = data & 0x3f; break;
-    case 7: prg_bank[1] = data & 0x3f; break;
-    }
-    break;
-
-  case 0xa000:
-    mirror = data & 0x01;
-    break;
-
-  case 0xa001:
-    ram_enable = data & 0x80;
-    ram_write_protect = data & 0x40;
-    break;
-
-  case 0xc000:
-    irq_latch = data;
-    break;
-
-  case 0xc001:
-    irq_counter = 0;
-    break;
-
-  case 0xe000:
-    irq_enable = false;
-    irq_line = 0;
-    break;
-
-  case 0xe001:
-    irq_enable = true;
-    break;
-  }
-}
-
-void power() {
-}
-
-void reset() {
-  chr_mode = 0;
-  prg_mode = 0;
-  bank_select = 0;
-  prg_bank[0] = 0;
-  prg_bank[1] = 0;
-  chr_bank[0] = 0;
-  chr_bank[1] = 0;
-  chr_bank[2] = 0;
-  chr_bank[3] = 0;
-  chr_bank[4] = 0;
-  chr_bank[5] = 0;
-  mirror = 0;
-  ram_enable = 1;
-  ram_write_protect = 0;
-  irq_latch = 0;
-  irq_counter = 0;
-  irq_enable = false;
-  irq_delay = 0;
-  irq_line = 0;
-
-  chr_abus = 0;
-}
-
-void serialize(serializer &s) {
-  s.integer(chr_mode);
-  s.integer(prg_mode);
-  s.integer(bank_select);
-  s.array(prg_bank);
-  s.array(chr_bank);
-  s.integer(mirror);
-  s.integer(ram_enable);
-  s.integer(ram_write_protect);
-  s.integer(irq_latch);
-  s.integer(irq_counter);
-  s.integer(irq_enable);
-  s.integer(irq_delay);
-  s.integer(irq_line);
-
-  s.integer(chr_abus);
-}
-
-MMC3(Board &board) : Chip(board) {
-}
-
-};

bsnes/fc/cartridge/chip/mmc5.cpp

@@ -1,497 +0,0 @@
-struct MMC5 : Chip {
-
-enum class Revision : unsigned {
-  MMC5,
-  MMC5B,
-} revision;
-
-uint8 exram[1024];
-
-//programmable registers
-
-uint2 prg_mode;  //$5100
-uint2 chr_mode;  //$5101
-
-uint2 prgram_write_protect[2];  //$5102,$5103
-
-uint2 exram_mode;         //$5104
-uint2 nametable_mode[4];  //$5105
-uint8 fillmode_tile;      //$5106
-uint8 fillmode_color;     //$5107
-
-bool ram_select;            //$5113
-uint2 ram_bank;             //$5113
-uint8 prg_bank[4];          //$5114-5117
-uint10 chr_sprite_bank[8];  //$5120-5127
-uint10 chr_bg_bank[4];      //$5128-512b
-uint2 chr_bank_hi;          //$5130
-
-bool vs_enable;      //$5200
-bool vs_side;        //$5200
-uint5 vs_tile;       //$5200
-uint8 vs_scroll;     //$5201
-uint8 vs_bank;       //$5202
-
-uint8 irq_line;      //$5203
-bool irq_enable;     //$5204
-
-uint8 multiplicand;  //$5205
-uint8 multiplier;    //$5206
-
-//status registers
-
-unsigned cpu_cycle_counter;
-unsigned irq_counter;
-bool irq_pending;
-bool in_frame;
-
-unsigned vcounter;
-unsigned hcounter;
-uint16 chr_access[4];
-bool chr_active;
-bool sprite_8x16;
-
-uint8 exbank;
-uint8 exattr;
-
-bool vs_fetch;
-uint8 vs_vpos;
-uint8 vs_hpos;
-
-void main() {
-  while(true) {
-    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
-      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
-    }
-
-    //scanline() resets this; if no scanlines detected, enter video blanking period
-    if(++cpu_cycle_counter >= 200) blank();  //113-114 normal; ~2500 across Vblank period
-
-    cpu.set_irq_line(irq_enable && irq_pending);
-    tick();
-  }
-}
-
-void scanline(unsigned y) {
-//used for testing only, to verify MMC5 scanline detection is accurate:
-//if(y != vcounter && y <= 240) print(y, " vs ", vcounter, "\n");
-}
-
-uint8 prg_access(bool write, unsigned addr, uint8 data = 0x00) {
-  unsigned bank;
-
-  if((addr & 0xe000) == 0x6000) {
-    bank = (ram_select << 2) | ram_bank;
-    addr &= 0x1fff;
-  } else if(prg_mode == 0) {
-    bank = prg_bank[3] & ~3;
-    addr &= 0x7fff;
-  } else if(prg_mode == 1) {
-    if((addr & 0xc000) == 0x8000) bank = (prg_bank[1] & ~1);
-    if((addr & 0xe000) == 0xc000) bank = (prg_bank[3] & ~1);
-    addr &= 0x3fff;
-  } else if(prg_mode == 2) {
-    if((addr & 0xe000) == 0x8000) bank = (prg_bank[1] & ~1) | 0;
-    if((addr & 0xe000) == 0xa000) bank = (prg_bank[1] & ~1) | 1;
-    if((addr & 0xe000) == 0xc000) bank = (prg_bank[2]);
-    if((addr & 0xe000) == 0xe000) bank = (prg_bank[3]);
-    addr &= 0x1fff;
-  } else if(prg_mode == 3) {
-    if((addr & 0xe000) == 0x8000) bank = prg_bank[0];
-    if((addr & 0xe000) == 0xa000) bank = prg_bank[1];
-    if((addr & 0xe000) == 0xc000) bank = prg_bank[2];
-    if((addr & 0xe000) == 0xe000) bank = prg_bank[3];
-    addr &= 0x1fff;
-  }
-
-  bool rom = bank & 0x80;
-  bank &= 0x7f;
-
-  if(write == false) {
-    if(rom) {
-      return board.prgrom.read((bank << 13) | addr);
-    } else {
-      return board.prgram.read((bank << 13) | addr);
-    }
-  } else {
-    if(rom) {
-      board.prgrom.write((bank << 13) | addr, data);
-    } else {
-      if(prgram_write_protect[0] == 2 && prgram_write_protect[1] == 1) {
-        board.prgram.write((bank << 13) | addr, data);
-      }
-    }
-    return 0x00;
-  }
-}
-
-uint8 prg_read(unsigned addr) {
-  if((addr & 0xfc00) == 0x5c00) {
-    if(exram_mode >= 2) return exram[addr & 0x03ff];
-    return cpu.mdr();
-  }
-
-  if(addr >= 0x6000) {
-    return prg_access(0, addr);
-  }
-
-  switch(addr) {
-  case 0x5204: {
-    uint8 result = (irq_pending << 7) | (in_frame << 6);
-    irq_pending = false;
-    return result;
-  }
-  case 0x5205: return (multiplier * multiplicand) >> 0;
-  case 0x5206: return (multiplier * multiplicand) >> 8;
-  }
-}
-
-void prg_write(unsigned addr, uint8 data) {
-  if((addr & 0xfc00) == 0x5c00) {
-    //writes 0x00 *during* Vblank (not during screen rendering ...)
-    if(exram_mode == 0 || exram_mode == 1) exram[addr & 0x03ff] = in_frame ? data : 0x00;
-    if(exram_mode == 2) exram[addr & 0x03ff] = data;
-    return;
-  }
-
-  if(addr >= 0x6000) {
-    prg_access(1, addr, data);
-    return;
-  }
-
-  switch(addr) {
-  case 0x2000:
-    sprite_8x16 = data & 0x20;
-    break;
-
-  case 0x2001:
-    //if BG+sprites are disabled; enter video blanking period
-    if((data & 0x18) == 0) blank();
-    break;
-
-  case 0x5100: prg_mode = data & 3; break;
-  case 0x5101: chr_mode = data & 3; break;
-
-  case 0x5102: prgram_write_protect[0] = data & 3; break;
-  case 0x5103: prgram_write_protect[1] = data & 3; break;
-
-  case 0x5104:
-    exram_mode = data & 3;
-    break;
-
-  case 0x5105:
-    nametable_mode[0] = (data & 0x03) >> 0;
-    nametable_mode[1] = (data & 0x0c) >> 2;
-    nametable_mode[2] = (data & 0x30) >> 4;
-    nametable_mode[3] = (data & 0xc0) >> 6;
-    break;
-
-  case 0x5106:
-    fillmode_tile = data;
-    break;
-
-  case 0x5107:
-    fillmode_color = data & 3;
-    fillmode_color |= fillmode_color << 2;
-    fillmode_color |= fillmode_color << 4;
-    break;
-
-  case 0x5113:
-    ram_select = data & 0x04;
-    ram_bank = data & 0x03;
-    break;
-
-  case 0x5114: prg_bank[0] = data; break;
-  case 0x5115: prg_bank[1] = data; break;
-  case 0x5116: prg_bank[2] = data; break;
-  case 0x5117: prg_bank[3] = data | 0x80; break;
-
-  case 0x5120: chr_sprite_bank[0] = (chr_bank_hi << 8) | data; chr_active = 0; break;
-  case 0x5121: chr_sprite_bank[1] = (chr_bank_hi << 8) | data; chr_active = 0; break;
-  case 0x5122: chr_sprite_bank[2] = (chr_bank_hi << 8) | data; chr_active = 0; break;
-  case 0x5123: chr_sprite_bank[3] = (chr_bank_hi << 8) | data; chr_active = 0; break;
-  case 0x5124: chr_sprite_bank[4] = (chr_bank_hi << 8) | data; chr_active = 0; break;
-  case 0x5125: chr_sprite_bank[5] = (chr_bank_hi << 8) | data; chr_active = 0; break;
-  case 0x5126: chr_sprite_bank[6] = (chr_bank_hi << 8) | data; chr_active = 0; break;
-  case 0x5127: chr_sprite_bank[7] = (chr_bank_hi << 8) | data; chr_active = 0; break;
-
-  case 0x5128: chr_bg_bank[0] = (chr_bank_hi << 8) | data; chr_active = 1; break;
-  case 0x5129: chr_bg_bank[1] = (chr_bank_hi << 8) | data; chr_active = 1; break;
-  case 0x512a: chr_bg_bank[2] = (chr_bank_hi << 8) | data; chr_active = 1; break;
-  case 0x512b: chr_bg_bank[3] = (chr_bank_hi << 8) | data; chr_active = 1; break;
-
-  case 0x5130:
-    chr_bank_hi = data & 3;
-    break;
-
-  case 0x5200:
-    vs_enable = data & 0x80;
-    vs_side = data & 0x40;
-    vs_tile = data & 0x1f;
-    break;
-
-  case 0x5201:
-    vs_scroll = data;
-    break;
-
-  case 0x5202:
-    vs_bank = data;
-    break;
-
-  case 0x5203:
-    irq_line = data;
-    break;
-
-  case 0x5204:
-    irq_enable = data & 0x80;
-    break;
-
-  case 0x5205:
-    multiplicand = data;
-    break;
-
-  case 0x5206:
-    multiplier = data;
-    break;
-  }
-}
-
-unsigned chr_sprite_addr(unsigned addr) {
-  if(chr_mode == 0) {
-    auto bank = chr_sprite_bank[7];
-    return (bank * 0x2000) + (addr & 0x1fff);
-  }
-
-  if(chr_mode == 1) {
-    auto bank = chr_sprite_bank[(addr / 0x1000) * 4 + 3];
-    return (bank * 0x1000) + (addr & 0x0fff);
-  }
-
-  if(chr_mode == 2) {
-    auto bank = chr_sprite_bank[(addr / 0x0800) * 2 + 1];
-    return (bank * 0x0800) + (addr & 0x07ff);
-  }
-
-  if(chr_mode == 3) {
-    auto bank = chr_sprite_bank[(addr / 0x0400)];
-    return (bank * 0x0400) + (addr & 0x03ff);
-  }
-}
-
-unsigned chr_bg_addr(unsigned addr) {
-  addr &= 0x0fff;
-
-  if(chr_mode == 0) {
-    auto bank = chr_bg_bank[3];
-    return (bank * 0x2000) + (addr & 0x0fff);
-  }
-
-  if(chr_mode == 1) {
-    auto bank = chr_bg_bank[3];
-    return (bank * 0x1000) + (addr & 0x0fff);
-  }
-
-  if(chr_mode == 2) {
-    auto bank = chr_bg_bank[(addr / 0x0800) * 2 + 1];
-    return (bank * 0x0800) + (addr & 0x07ff);
-  }
-
-  if(chr_mode == 3) {
-    auto bank = chr_bg_bank[(addr / 0x0400)];
-    return (bank * 0x0400) + (addr & 0x03ff);
-  }
-}
-
-unsigned chr_vs_addr(unsigned addr) {
-  return (vs_bank * 0x1000) + (addr & 0x0ff8) + (vs_vpos & 7);
-}
-
-void blank() {
-  in_frame = false;
-}
-
-void scanline() {
-  hcounter = 0;
-
-  if(in_frame == false) {
-    in_frame = true;
-    irq_pending = false;
-    vcounter = 0;
-  } else {
-    if(vcounter == irq_line) irq_pending = true;
-    vcounter++;
-  }
-
-  cpu_cycle_counter = 0;
-}
-
-uint8 ciram_read(unsigned addr) {
-  if(vs_fetch && (hcounter & 2) == 0) return exram[vs_vpos / 8 * 32 + vs_hpos / 8];
-  if(vs_fetch && (hcounter & 2) != 0) return exram[vs_vpos / 32 * 8 + vs_hpos / 32 + 0x03c0];
-
-  switch(nametable_mode[(addr >> 10) & 3]) {
-  case 0: return ppu.ciram_read(0x0000 | (addr & 0x03ff));
-  case 1: return ppu.ciram_read(0x0400 | (addr & 0x03ff));
-  case 2: return exram_mode < 2 ? exram[addr & 0x03ff] : 0x00;
-  case 3: return (hcounter & 2) == 0 ? fillmode_tile : fillmode_color;
-  }
-}
-
-uint8 chr_read(unsigned addr) {
-  chr_access[0] = chr_access[1];
-  chr_access[1] = chr_access[2];
-  chr_access[2] = chr_access[3];
-  chr_access[3] = addr;
-
-  //detect two unused nametable fetches at end of each scanline
-  if((chr_access[0] & 0x2000) == 0
-  && (chr_access[1] & 0x2000)
-  && (chr_access[2] & 0x2000)
-  && (chr_access[3] & 0x2000)) scanline();
-
-  if(in_frame == false) {
-    vs_fetch = false;
-    if(addr & 0x2000) return ciram_read(addr);
-    return board.chrrom.read(chr_active ? chr_bg_addr(addr) : chr_sprite_addr(addr));
-  }
-
-  bool bg_fetch = (hcounter < 256 || hcounter >= 320);
-  uint8 result = 0x00;
-
-  if((hcounter & 7) == 0) {
-    vs_hpos  = hcounter >= 320 ? hcounter - 320 : hcounter + 16;
-    vs_vpos  = vcounter + vs_scroll;
-    vs_fetch = vs_enable && bg_fetch && exram_mode < 2
-    && (vs_side ? vs_hpos / 8 >= vs_tile : vs_hpos / 8 < vs_tile);
-    if(vs_vpos >= 240) vs_vpos -= 240;
-
-    result = ciram_read(addr);
-
-    exbank = (chr_bank_hi << 6) | (exram[addr & 0x03ff] & 0x3f);
-    exattr = exram[addr & 0x03ff] >> 6;
-    exattr |= exattr << 2;
-    exattr |= exattr << 4;
-  } else if((hcounter & 7) == 2) {
-    result = ciram_read(addr);
-    if(bg_fetch && exram_mode == 1) result = exattr;
-  } else {
-    if(vs_fetch) result = board.chrrom.read(chr_vs_addr(addr));
-    else if(sprite_8x16 ? bg_fetch : chr_active) result = board.chrrom.read(chr_bg_addr(addr));
-    else result = board.chrrom.read(chr_sprite_addr(addr));
-    if(bg_fetch && exram_mode == 1) result = board.chrrom.read(exbank * 0x1000 + (addr & 0x0fff));
-  }
-
-  hcounter += 2;
-  return result;
-}
-
-void chr_write(unsigned addr, uint8 data) {
-  if(addr & 0x2000) {
-    switch(nametable_mode[(addr >> 10) & 3]) {
-    case 0: return ppu.ciram_write(0x0000 | (addr & 0x03ff), data);
-    case 1: return ppu.ciram_write(0x0400 | (addr & 0x03ff), data);
-    case 2: exram[addr & 0x03ff] = data; break;
-    }
-  }
-}
-
-void power() {
-}
-
-void reset() {
-  for(auto &n : exram) n = 0xff;
-
-  prg_mode = 3;
-  chr_mode = 0;
-  for(auto &n : prgram_write_protect) n = 0;
-  exram_mode = 0;
-  for(auto &n : nametable_mode) n = 0;
-  fillmode_tile = 0;
-  fillmode_color = 0;
-  ram_select = 0;
-  ram_bank = 0;
-  prg_bank[0] = 0x00;
-  prg_bank[1] = 0x00;
-  prg_bank[2] = 0x00;
-  prg_bank[3] = 0xff;
-  for(auto &n : chr_sprite_bank) n = 0;
-  for(auto &n : chr_bg_bank) n = 0;
-  chr_bank_hi = 0;
-  vs_enable = 0;
-  vs_side = 0;
-  vs_tile = 0;
-  vs_scroll = 0;
-  vs_bank = 0;
-  irq_line = 0;
-  irq_enable = 0;
-  multiplicand = 0;
-  multiplier = 0;
-
-  cpu_cycle_counter = 0;
-  irq_counter = 0;
-  irq_pending = 0;
-  in_frame = 0;
-  vcounter = 0;
-  hcounter = 0;
-  for(auto &n : chr_access) n = 0;
-  chr_active = 0;
-  sprite_8x16 = 0;
-
-  exbank = 0;
-  exattr = 0;
-
-  vs_fetch = 0;
-  vs_vpos = 0;
-  vs_hpos = 0;
-}
-
-void serialize(serializer &s) {
-  s.array(exram);
-
-  s.integer(prg_mode);
-  s.integer(chr_mode);
-  for(auto &n : prgram_write_protect) s.integer(n);
-  s.integer(exram_mode);
-  for(auto &n : nametable_mode) s.integer(n);
-  s.integer(fillmode_tile);
-  s.integer(fillmode_color);
-  s.integer(ram_select);
-  s.integer(ram_bank);
-  for(auto &n : prg_bank) s.integer(n);
-  for(auto &n : chr_sprite_bank) s.integer(n);
-  for(auto &n : chr_bg_bank) s.integer(n);
-  s.integer(chr_bank_hi);
-  s.integer(vs_enable);
-  s.integer(vs_side);
-  s.integer(vs_tile);
-  s.integer(vs_scroll);
-  s.integer(vs_bank);
-  s.integer(irq_line);
-  s.integer(irq_enable);
-  s.integer(multiplicand);
-  s.integer(multiplier);
-
-  s.integer(cpu_cycle_counter);
-  s.integer(irq_counter);
-  s.integer(irq_pending);
-  s.integer(in_frame);
-
-  s.integer(vcounter);
-  s.integer(hcounter);
-  for(auto &n : chr_access) s.integer(n);
-  s.integer(chr_active);
-  s.integer(sprite_8x16);
-
-  s.integer(exbank);
-  s.integer(exattr);
-
-  s.integer(vs_fetch);
-  s.integer(vs_vpos);
-  s.integer(vs_hpos);
-}
-
-MMC5(Board &board) : Chip(board) {
-  revision = Revision::MMC5;
-}
-
-};

bsnes/fc/cartridge/chip/mmc6.cpp

@@ -1,200 +0,0 @@
-struct MMC6 : Chip {
-
-bool chr_mode;
-bool prg_mode;
-bool ram_enable;
-uint3 bank_select;
-uint8 prg_bank[2];
-uint8 chr_bank[6];
-bool mirror;
-bool ram_readable[2];
-bool ram_writable[2];
-uint8 irq_latch;
-uint8 irq_counter;
-bool irq_enable;
-unsigned irq_delay;
-bool irq_line;
-
-uint16 chr_abus;
-
-void main() {
-  while(true) {
-    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
-      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
-    }
-
-    if(irq_delay) irq_delay--;
-    cpu.set_irq_line(irq_line);
-    tick();
-  }
-}
-
-void irq_test(unsigned addr) {
-  if(!(chr_abus & 0x1000) && (addr & 0x1000)) {
-    if(irq_delay == 0) {
-      if(irq_counter == 0) {
-        irq_counter = irq_latch;
-      } else if(--irq_counter == 0) {
-        if(irq_enable) irq_line = 1;
-      }
-    }
-    irq_delay = 6;
-  }
-  chr_abus = addr;
-}
-
-unsigned prg_addr(unsigned addr) const {
-  switch((addr >> 13) & 3) {
-  case 0:
-    if(prg_mode == 1) return (0x3e << 13) | (addr & 0x1fff);
-    return (prg_bank[0] << 13) | (addr & 0x1fff);
-  case 1:
-    return (prg_bank[1] << 13) | (addr & 0x1fff);
-  case 2:
-    if(prg_mode == 0) return (0x3e << 13) | (addr & 0x1fff);
-    return (prg_bank[0] << 13) | (addr & 0x1fff);
-  case 3:
-    return (0x3f << 13) | (addr & 0x1fff);
-  }
-}
-
-unsigned chr_addr(unsigned addr) const {
-  if(chr_mode == 0) {
-    if(addr <= 0x07ff) return (chr_bank[0] << 10) | (addr & 0x07ff);
-    if(addr <= 0x0fff) return (chr_bank[1] << 10) | (addr & 0x07ff);
-    if(addr <= 0x13ff) return (chr_bank[2] << 10) | (addr & 0x03ff);
-    if(addr <= 0x17ff) return (chr_bank[3] << 10) | (addr & 0x03ff);
-    if(addr <= 0x1bff) return (chr_bank[4] << 10) | (addr & 0x03ff);
-    if(addr <= 0x1fff) return (chr_bank[5] << 10) | (addr & 0x03ff);
-  } else {
-    if(addr <= 0x03ff) return (chr_bank[2] << 10) | (addr & 0x03ff);
-    if(addr <= 0x07ff) return (chr_bank[3] << 10) | (addr & 0x03ff);
-    if(addr <= 0x0bff) return (chr_bank[4] << 10) | (addr & 0x03ff);
-    if(addr <= 0x0fff) return (chr_bank[5] << 10) | (addr & 0x03ff);
-    if(addr <= 0x17ff) return (chr_bank[0] << 10) | (addr & 0x07ff);
-    if(addr <= 0x1fff) return (chr_bank[1] << 10) | (addr & 0x07ff);
-  }
-}
-
-unsigned ciram_addr(unsigned addr) const {
-  if(mirror == 0) return ((addr & 0x0400) >> 0) | (addr & 0x03ff);
-  if(mirror == 1) return ((addr & 0x0800) >> 1) | (addr & 0x03ff);
-}
-
-uint8 ram_read(unsigned addr) {
-  if(ram_enable == false) return cpu.mdr();
-  if(ram_readable[0] == false && ram_readable[1] == false) return cpu.mdr();
-  bool region = addr & 0x0200;
-  if(ram_readable[region] == false) return 0x00;
-  return board.prgram.read((region * 0x0200) + (addr & 0x01ff));
-}
-
-void ram_write(unsigned addr, uint8 data) {
-  if(ram_enable == false) return;
-  bool region = addr & 0x0200;
-  if(ram_writable[region] == false) return;
-  return board.prgram.write((region * 0x0200) + (addr & 0x01ff), data);
-}
-
-void reg_write(unsigned addr, uint8 data) {
-  switch(addr & 0xe001) {
-  case 0x8000:
-    chr_mode = data & 0x80;
-    prg_mode = data & 0x40;
-    ram_enable = data & 0x20;
-    bank_select = data & 0x07;
-    if(ram_enable == false) {
-      for(auto &n : ram_readable) n = false;
-      for(auto &n : ram_writable) n = false;
-    }
-    break;
-
-  case 0x8001:
-    switch(bank_select) {
-    case 0: chr_bank[0] = data & ~1; break;
-    case 1: chr_bank[1] = data & ~1; break;
-    case 2: chr_bank[2] = data; break;
-    case 3: chr_bank[3] = data; break;
-    case 4: chr_bank[4] = data; break;
-    case 5: chr_bank[5] = data; break;
-    case 6: prg_bank[0] = data & 0x3f; break;
-    case 7: prg_bank[1] = data & 0x3f; break;
-    }
-    break;
-
-  case 0xa000:
-    mirror = data & 0x01;
-    break;
-
-  case 0xa001:
-    if(ram_enable == false) break;
-    ram_readable[1] = data & 0x80;
-    ram_writable[1] = data & 0x40;
-    ram_readable[0] = data & 0x20;
-    ram_writable[0] = data & 0x10;
-    break;
-
-  case 0xc000:
-    irq_latch = data;
-    break;
-
-  case 0xc001:
-    irq_counter = 0;
-    break;
-
-  case 0xe000:
-    irq_enable = false;
-    irq_line = 0;
-    break;
-
-  case 0xe001:
-    irq_enable = true;
-    break;
-  }
-}
-
-void power() {
-}
-
-void reset() {
-  chr_mode = 0;
-  prg_mode = 0;
-  ram_enable = 0;
-  bank_select = 0;
-  for(auto &n : prg_bank) n = 0;
-  for(auto &n : chr_bank) n = 0;
-  mirror = 0;
-  for(auto &n : ram_readable) n = 0;
-  for(auto &n : ram_writable) n = 0;
-  irq_latch = 0;
-  irq_counter = 0;
-  irq_enable = 0;
-  irq_delay = 0;
-  irq_line = 0;
-
-  chr_abus = 0;
-}
-
-void serialize(serializer &s) {
-  s.integer(chr_mode);
-  s.integer(prg_mode);
-  s.integer(ram_enable);
-  s.integer(bank_select);
-  for(auto &n : prg_bank) s.integer(n);
-  for(auto &n : chr_bank) s.integer(n);
-  s.integer(mirror);
-  for(auto &n : ram_readable) s.integer(n);
-  for(auto &n : ram_writable) s.integer(n);
-  s.integer(irq_latch);
-  s.integer(irq_counter);
-  s.integer(irq_enable);
-  s.integer(irq_delay);
-  s.integer(irq_line);
-
-  s.integer(chr_abus);
-}
-
-MMC6(Board &board) : Chip(board) {
-}
-
-};

bsnes/fc/cartridge/chip/vrc1.cpp

@@ -1,80 +0,0 @@
-struct VRC1 : Chip {
-
-uint4 prg_bank[3];
-uint4 chr_banklo[2];
-bool chr_bankhi[2];
-bool mirror;
-
-unsigned prg_addr(unsigned addr) const {
-  unsigned bank = 0x0f;
-  if((addr & 0xe000) == 0x8000) bank = prg_bank[0];
-  if((addr & 0xe000) == 0xa000) bank = prg_bank[1];
-  if((addr & 0xe000) == 0xc000) bank = prg_bank[2];
-  return (bank * 0x2000) + (addr & 0x1fff);
-}
-
-unsigned chr_addr(unsigned addr) const {
-  unsigned bank = chr_banklo[(bool)(addr & 0x1000)];
-  bank |= chr_bankhi[(bool)(addr & 0x1000)] << 4;
-  return (bank * 0x1000) + (addr & 0x0fff);  
-}
-
-unsigned ciram_addr(unsigned addr) const {
-  switch(mirror) {
-  case 0: return ((addr & 0x0400) >> 0) | (addr & 0x03ff);  //vertical mirroring
-  case 1: return ((addr & 0x0800) >> 1) | (addr & 0x03ff);  //horizontal mirroring
-  }
-  throw;
-}
-
-void reg_write(unsigned addr, uint8 data) {
-  switch(addr & 0xf000) {
-  case 0x8000:
-    prg_bank[0] = data & 0x0f;
-    break;
-
-  case 0x9000:
-    chr_bankhi[1] = data & 0x04;
-    chr_bankhi[0] = data & 0x02;
-    mirror = data & 0x01;
-    break;
-
-  case 0xa000:
-    prg_bank[1] = data & 0x0f;
-    break;
-
-  case 0xc000:
-    prg_bank[2] = data & 0x0f;
-    break;
-
-  case 0xe000:
-    chr_banklo[0] = data & 0x0f;
-    break;
-
-  case 0xf000:
-    chr_banklo[1] = data & 0x0f;
-    break;
-  }
-}
-
-void power() {
-}
-
-void reset() {
-  for(auto &n : prg_bank) n = 0;
-  for(auto &n : chr_banklo) n = 0;
-  for(auto &n : chr_bankhi) n = 0;
-  mirror = 0;
-}
-
-void serialize(serializer &s) {
-  for(auto &n : prg_bank) s.integer(n);
-  for(auto &n : chr_banklo) s.integer(n);
-  for(auto &n : chr_bankhi) s.integer(n);
-  s.integer(mirror);
-}
-
-VRC1(Board &board) : Chip(board) {
-}
-
-};

bsnes/fc/cartridge/chip/vrc2.cpp

@@ -1,110 +0,0 @@
-struct VRC2 : Chip {
-
-uint5 prg_bank[2];
-uint8 chr_bank[8];
-uint2 mirror;
-bool latch;
-
-unsigned prg_addr(unsigned addr) const {
-  unsigned bank;
-  switch(addr & 0xe000) {
-  case 0x8000: bank = prg_bank[0]; break;
-  case 0xa000: bank = prg_bank[1]; break;
-  case 0xc000: bank = 0x1e; break;
-  case 0xe000: bank = 0x1f; break;
-  }
-  return (bank * 0x2000) + (addr & 0x1fff);
-}
-
-unsigned chr_addr(unsigned addr) const {
-  unsigned bank = chr_bank[addr / 0x0400];
-  return (bank * 0x0400) + (addr & 0x03ff);
-}
-
-unsigned ciram_addr(unsigned addr) const {
-  switch(mirror) {
-  case 0: return ((addr & 0x0400) >> 0) | (addr & 0x03ff);  //vertical mirroring
-  case 1: return ((addr & 0x0800) >> 1) | (addr & 0x03ff);  //horizontal mirroring
-  case 2: return 0x0000 | (addr & 0x03ff);                  //one-screen mirroring (first)
-  case 3: return 0x0400 | (addr & 0x03ff);                  //one-screen mirroring (second)
-  }
-  throw;
-}
-
-uint8 ram_read(unsigned addr) {
-  if(board.prgram.size == 0) {
-    if((addr & 0xf000) == 0x6000) return cpu.mdr() | latch;
-    return cpu.mdr();
-  }
-  return board.prgram.read(addr & 0x1fff);
-}
-
-void ram_write(unsigned addr, uint8 data) {
-  if(board.prgram.size == 0) {
-    if((addr & 0xf000) == 0x6000) latch = data & 0x01;
-    return;
-  }
-  return board.prgram.write(addr & 0x1fff, data);
-}
-
-void reg_write(unsigned addr, uint8 data) {
-  switch(addr) {
-  case 0x8000: case 0x8001: case 0x8002: case 0x8003:
-    prg_bank[0] = data & 0x1f;
-    break;
-
-  case 0x9000: case 0x9001: case 0x9002: case 0x9003:
-    mirror = data & 0x03;
-    break;
-
-  case 0xa000: case 0xa001: case 0xa002: case 0xa003:
-    prg_bank[1] = data & 0x1f;
-    break;
-
-  case 0xb000: chr_bank[0] = (chr_bank[0] & 0xf0) | ((data & 0x0f) << 0); break;
-  case 0xb001: chr_bank[0] = (chr_bank[0] & 0x0f) | ((data & 0x0f) << 4); break;
-
-  case 0xb002: chr_bank[1] = (chr_bank[1] & 0xf0) | ((data & 0x0f) << 0); break;
-  case 0xb003: chr_bank[1] = (chr_bank[1] & 0x0f) | ((data & 0x0f) << 4); break;
-
-  case 0xc000: chr_bank[2] = (chr_bank[2] & 0xf0) | ((data & 0x0f) << 0); break;
-  case 0xc001: chr_bank[2] = (chr_bank[2] & 0x0f) | ((data & 0x0f) << 4); break;
-
-  case 0xc002: chr_bank[3] = (chr_bank[3] & 0xf0) | ((data & 0x0f) << 0); break;
-  case 0xc003: chr_bank[3] = (chr_bank[3] & 0x0f) | ((data & 0x0f) << 4); break;
-
-  case 0xd000: chr_bank[4] = (chr_bank[4] & 0xf0) | ((data & 0x0f) << 0); break;
-  case 0xd001: chr_bank[4] = (chr_bank[4] & 0x0f) | ((data & 0x0f) << 4); break;
-
-  case 0xd002: chr_bank[5] = (chr_bank[5] & 0xf0) | ((data & 0x0f) << 0); break;
-  case 0xd003: chr_bank[5] = (chr_bank[5] & 0x0f) | ((data & 0x0f) << 4); break;
-
-  case 0xe000: chr_bank[6] = (chr_bank[6] & 0xf0) | ((data & 0x0f) << 0); break;
-  case 0xe001: chr_bank[6] = (chr_bank[6] & 0x0f) | ((data & 0x0f) << 4); break;
-
-  case 0xe002: chr_bank[7] = (chr_bank[7] & 0xf0) | ((data & 0x0f) << 0); break;
-  case 0xe003: chr_bank[7] = (chr_bank[7] & 0x0f) | ((data & 0x0f) << 4); break;
-  }
-}
-
-void power() {
-}
-
-void reset() {
-  for(auto &n : prg_bank) n = 0;
-  for(auto &n : chr_bank) n = 0;
-  mirror = 0;
-  latch = 0;
-}
-
-void serialize(serializer &s) {
-  for(auto &n : prg_bank) s.integer(n);
-  for(auto &n : chr_bank) s.integer(n);
-  s.integer(mirror);
-  s.integer(latch);
-}
-
-VRC2(Board &board) : Chip(board) {
-}
-
-};

bsnes/fc/cartridge/chip/vrc3.cpp

@@ -1,100 +0,0 @@
-struct VRC3 : Chip {
-
-uint4 prg_bank;
-bool irq_mode;
-bool irq_enable;
-bool irq_acknowledge;
-uint16 irq_latch;
-struct {
-  union {
-    uint16 w;
-    struct { uint8 order_lsb2(l, h); };
-  };
-} irq_counter;
-bool irq_line;
-
-void main() {
-  while(true) {
-    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
-      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
-    }
-
-    if(irq_enable) {
-      if(irq_mode == 0) {  //16-bit
-        if(++irq_counter.w == 0) {
-          irq_line = 1;
-          irq_enable = irq_acknowledge;
-          irq_counter.w = irq_latch;
-        }
-      }
-      if(irq_mode == 1) {  //8-bit
-        if(++irq_counter.l == 0) {
-          irq_line = 1;
-          irq_enable = irq_acknowledge;
-          irq_counter.l = irq_latch;
-        }
-      }
-    }
-
-    cpu.set_irq_line(irq_line);
-    tick();
-  }
-}
-
-unsigned prg_addr(unsigned addr) const {
-  unsigned bank = (addr < 0xc000 ? (unsigned)prg_bank : 0x0f);
-  return (bank * 0x4000) + (addr & 0x3fff);
-}
-
-void reg_write(unsigned addr, uint8 data) {
-  switch(addr & 0xf000) {
-  case 0x8000: irq_latch = (irq_latch & 0xfff0) | ((data & 0x0f) <<  0); break;
-  case 0x9000: irq_latch = (irq_latch & 0xff0f) | ((data & 0x0f) <<  4); break;
-  case 0xa000: irq_latch = (irq_latch & 0xf0ff) | ((data & 0x0f) <<  8); break;
-  case 0xb000: irq_latch = (irq_latch & 0x0fff) | ((data & 0x0f) << 12); break;
-
-  case 0xc000:
-    irq_mode = data & 0x04;
-    irq_enable = data & 0x02;
-    irq_acknowledge = data & 0x01;
-    if(irq_enable) irq_counter.w = irq_latch;
-    break;
-
-  case 0xd000:
-    irq_line = 0;
-    irq_enable = irq_acknowledge;
-    break;
-
-  case 0xf000:
-    prg_bank = data & 0x0f;
-    break;
-  }
-}
-
-void power() {
-}
-
-void reset() {
-  prg_bank = 0;
-  irq_mode = 0;
-  irq_enable = 0;
-  irq_acknowledge = 0;
-  irq_latch = 0;
-  irq_counter.w = 0;
-  irq_line = 0;
-}
-
-void serialize(serializer &s) {
-  s.integer(prg_bank);
-  s.integer(irq_mode);
-  s.integer(irq_enable);
-  s.integer(irq_acknowledge);
-  s.integer(irq_latch);
-  s.integer(irq_counter.w);
-  s.integer(irq_line);
-}
-
-VRC3(Board &board) : Chip(board) {
-}
-
-};

bsnes/fc/cartridge/chip/vrc4.cpp

@@ -1,184 +0,0 @@
-struct VRC4 : Chip {
-
-bool prg_mode;
-uint5 prg_bank[2];
-uint2 mirror;
-uint8 chr_bank[8];
-
-uint8 irq_latch;
-bool irq_mode;
-bool irq_enable;
-bool irq_acknowledge;
-
-uint8 irq_counter;
-signed irq_scalar;
-bool irq_line;
-
-void main() {
-  while(true) {
-    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
-      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
-    }
-
-    if(irq_enable) {
-      if(irq_mode == 0) {
-        irq_scalar -= 3;
-        if(irq_scalar <= 0) {
-          irq_scalar += 341;
-          if(irq_counter == 0xff) {
-            irq_counter = irq_latch;
-            irq_line = 1;
-          } else {
-            irq_counter++;
-          }
-        }
-      }
-
-      if(irq_mode == 1) {
-        if(irq_counter == 0xff) {
-          irq_counter = irq_latch;
-          irq_line = 1;
-        } else {
-          irq_counter++;
-        }
-      }
-    }
-
-    cpu.set_irq_line(irq_line);
-    tick();
-  }
-}
-
-unsigned prg_addr(unsigned addr) const {
-  unsigned bank = 0, banks = board.prgrom.size / 0x2000;
-  switch(addr & 0xe000) {
-  case 0x8000: bank = prg_mode == 0 ? (unsigned)prg_bank[0] : banks - 2; break;
-  case 0xa000: bank = prg_bank[1]; break;
-  case 0xc000: bank = prg_mode == 0 ? banks - 2 : (unsigned)prg_bank[0]; break;
-  case 0xe000: bank = banks - 1; break;
-  }
-  return (bank * 0x2000) + (addr & 0x1fff);
-}
-
-unsigned chr_addr(unsigned addr) const {
-  unsigned bank = chr_bank[addr / 0x0400];
-  return (bank * 0x0400) + (addr & 0x03ff);
-}
-
-unsigned ciram_addr(unsigned addr) const {
-  switch(mirror) {
-  case 0: return ((addr & 0x0400) >> 0) | (addr & 0x03ff);  //vertical mirroring
-  case 1: return ((addr & 0x0800) >> 1) | (addr & 0x03ff);  //horizontal mirroring
-  case 2: return 0x0000 | (addr & 0x03ff);                  //one-screen mirroring (first)
-  case 3: return 0x0400 | (addr & 0x03ff);                  //one-screen mirroring (second)
-  }
-  throw;
-}
-
-void reg_write(unsigned addr, uint8 data) {
-  switch(addr) {
-  case 0x8000: case 0x8001: case 0x8002: case 0x8003:
-    prg_bank[0] = data & 0x1f;
-    break;
-
-  case 0x9000: case 0x9001:
-    mirror = data & 0x03;
-    break;
-
-  case 0x9002: case 0x9003:
-    prg_mode = data & 0x02;
-    break;
-
-  case 0xa000: case 0xa001: case 0xa002: case 0xa003:
-    prg_bank[1] = data & 0x1f;
-    break;
-
-  case 0xb000: chr_bank[0] = (chr_bank[0] & 0xf0) | ((data & 0x0f) << 0); break;
-  case 0xb001: chr_bank[0] = (chr_bank[0] & 0x0f) | ((data & 0x0f) << 4); break;
-
-  case 0xb002: chr_bank[1] = (chr_bank[1] & 0xf0) | ((data & 0x0f) << 0); break;
-  case 0xb003: chr_bank[1] = (chr_bank[1] & 0x0f) | ((data & 0x0f) << 4); break;
-
-  case 0xc000: chr_bank[2] = (chr_bank[2] & 0xf0) | ((data & 0x0f) << 0); break;
-  case 0xc001: chr_bank[2] = (chr_bank[2] & 0x0f) | ((data & 0x0f) << 4); break;
-
-  case 0xc002: chr_bank[3] = (chr_bank[3] & 0xf0) | ((data & 0x0f) << 0); break;
-  case 0xc003: chr_bank[3] = (chr_bank[3] & 0x0f) | ((data & 0x0f) << 4); break;
-
-  case 0xd000: chr_bank[4] = (chr_bank[4] & 0xf0) | ((data & 0x0f) << 0); break;
-  case 0xd001: chr_bank[4] = (chr_bank[4] & 0x0f) | ((data & 0x0f) << 4); break;
-
-  case 0xd002: chr_bank[5] = (chr_bank[5] & 0xf0) | ((data & 0x0f) << 0); break;
-  case 0xd003: chr_bank[5] = (chr_bank[5] & 0x0f) | ((data & 0x0f) << 4); break;
-
-  case 0xe000: chr_bank[6] = (chr_bank[6] & 0xf0) | ((data & 0x0f) << 0); break;
-  case 0xe001: chr_bank[6] = (chr_bank[6] & 0x0f) | ((data & 0x0f) << 4); break;
-
-  case 0xe002: chr_bank[7] = (chr_bank[7] & 0xf0) | ((data & 0x0f) << 0); break;
-  case 0xe003: chr_bank[7] = (chr_bank[7] & 0x0f) | ((data & 0x0f) << 4); break;
-
-  case 0xf000:
-    irq_latch = (irq_latch & 0xf0) | ((data & 0x0f) << 0);
-    break;
-
-  case 0xf001:
-    irq_latch = (irq_latch & 0x0f) | ((data & 0x0f) << 4);
-    break;
-
-  case 0xf002:
-    irq_mode = data & 0x04;
-    irq_enable = data & 0x02;
-    irq_acknowledge = data & 0x01;
-    if(irq_enable) {
-      irq_counter = irq_latch;
-      irq_scalar = 341;
-    }
-    irq_line = 0;
-    break;
-
-  case 0xf003:
-    irq_enable = irq_acknowledge;
-    irq_line = 0;
-    break;
-  }
-}
-
-void power() {
-}
-
-void reset() {
-  prg_mode = 0;
-  for(auto &n : prg_bank) n = 0;
-  mirror = 0;
-  for(auto &n : chr_bank) n = 0;
-
-  irq_latch = 0;
-  irq_mode = 0;
-  irq_enable = 0;
-  irq_acknowledge = 0;
-
-  irq_counter = 0;
-  irq_scalar = 0;
-  irq_line = 0;
-}
-
-void serialize(serializer &s) {
-  s.integer(prg_mode);
-  for(auto &n : prg_bank) s.integer(n);
-  s.integer(mirror);
-  for(auto &n : chr_bank) s.integer(n);
-
-  s.integer(irq_latch);
-  s.integer(irq_mode);
-  s.integer(irq_enable);
-  s.integer(irq_acknowledge);
-
-  s.integer(irq_counter);
-  s.integer(irq_scalar);
-  s.integer(irq_line);
-}
-
-VRC4(Board &board) : Chip(board) {
-}
-
-};

bsnes/fc/cartridge/chip/vrc6.cpp

@@ -1,321 +0,0 @@
-struct VRC6 : Chip {
-
-uint8 prg_bank[2];
-uint8 chr_bank[8];
-uint2 mirror;
-uint8 irq_latch;
-bool irq_mode;
-bool irq_enable;
-bool irq_acknowledge;
-
-uint8 irq_counter;
-signed irq_scalar;
-bool irq_line;
-
-struct Pulse {
-  bool mode;
-  uint3 duty;
-  uint4 volume;
-  bool enable;
-  uint12 frequency;
-
-  uint12 divider;
-  uint4 cycle;
-  uint4 output;
-
-  void clock() {
-    if(--divider == 0) {
-      divider = frequency + 1;
-      cycle++;
-      output = (mode == 1 || cycle > duty) ? volume : (uint4)0;
-    }
-
-    if(enable == false) output = 0;
-  }
-
-  void serialize(serializer &s) {
-    s.integer(mode);
-    s.integer(duty);
-    s.integer(volume);
-    s.integer(enable);
-    s.integer(frequency);
-
-    s.integer(divider);
-    s.integer(cycle);
-    s.integer(output);
-  }
-} pulse1, pulse2;
-
-struct Sawtooth {
-  uint6 rate;
-  bool enable;
-  uint12 frequency;
-
-  uint12 divider;
-  uint1 phase;
-  uint3 stage;
-  uint8 accumulator;
-  uint5 output;
-
-  void clock() {
-    if(--divider == 0) {
-      divider = frequency + 1;
-      if(++phase == 0) {
-        accumulator += rate;
-        if(++stage == 7) {
-          stage = 0;
-          accumulator = 0;
-        }
-      }
-    }
-
-    output = accumulator >> 3;
-    if(enable == false) output = 0;
-  }
-
-  void serialize(serializer &s) {
-    s.integer(rate);
-    s.integer(enable);
-    s.integer(frequency);
-
-    s.integer(divider);
-    s.integer(phase);
-    s.integer(stage);
-    s.integer(accumulator);
-    s.integer(output);
-  }
-} sawtooth;
-
-void main() {
-  while(true) {
-    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
-      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
-    }
-
-    if(irq_enable) {
-      if(irq_mode == 0) {
-        irq_scalar -= 3;
-        if(irq_scalar <= 0) {
-          irq_scalar += 341;
-          if(irq_counter == 0xff) {
-            irq_counter = irq_latch;
-            irq_line = 1;
-          } else {
-            irq_counter++;
-          }
-        }
-      }
-
-      if(irq_mode == 1) {
-        if(irq_counter == 0xff) {
-          irq_counter = irq_latch;
-          irq_line = 1;
-        } else {
-          irq_counter++;
-        }
-      }
-    }
-    cpu.set_irq_line(irq_line);
-
-    pulse1.clock();
-    pulse2.clock();
-    sawtooth.clock();
-    signed output = (pulse1.output + pulse2.output + sawtooth.output) << 7;
-    apu.set_sample(-output);
-
-    tick();
-  }
-}
-
-unsigned prg_addr(unsigned addr) const {
-  if((addr & 0xc000) == 0x8000) return (prg_bank[0] << 14) | (addr & 0x3fff);
-  if((addr & 0xe000) == 0xc000) return (prg_bank[1] << 13) | (addr & 0x1fff);
-  if((addr & 0xe000) == 0xe000) return (       0xff << 13) | (addr & 0x1fff);
-}
-
-unsigned chr_addr(unsigned addr) const {
-  unsigned bank = chr_bank[(addr >> 10) & 7];
-  return (bank << 10) | (addr & 0x03ff);
-}
-
-unsigned ciram_addr(unsigned addr) const {
-  switch(mirror) {
-  case 0: return ((addr & 0x0400) >> 0) | (addr & 0x03ff);  //vertical mirroring
-  case 1: return ((addr & 0x0800) >> 1) | (addr & 0x03ff);  //horizontal mirroring
-  case 2: return 0x0000 | (addr & 0x03ff);                  //one-screen mirroring (first)
-  case 3: return 0x0400 | (addr & 0x03ff);                  //one-screen mirroring (second)
-  }
-}
-
-uint8 ram_read(unsigned addr) {
-  return board.prgram.data[addr & 0x1fff];
-}
-
-void ram_write(unsigned addr, uint8 data) {
-  board.prgram.data[addr & 0x1fff] = data;
-}
-
-void reg_write(unsigned addr, uint8 data) {
-  switch(addr) {
-  case 0x8000: case 0x8001: case 0x8002: case 0x8003:
-    prg_bank[0] = data;
-    break;
-
-  case 0x9000:
-    pulse1.mode = data & 0x80;
-    pulse1.duty = (data & 0x70) >> 4;
-    pulse1.volume = data & 0x0f;
-    break;
-
-  case 0x9001:
-    pulse1.frequency = (pulse1.frequency & 0x0f00) | ((data & 0xff) << 0);
-    break;
-
-  case 0x9002:
-    pulse1.frequency = (pulse1.frequency & 0x00ff) | ((data & 0x0f) << 8);
-    pulse1.enable = data & 0x80;
-    break;
-
-  case 0xa000:
-    pulse2.mode = data & 0x80;
-    pulse2.duty = (data & 0x70) >> 4;
-    pulse2.volume = data & 0x0f;
-    break;
-
-  case 0xa001:
-    pulse2.frequency = (pulse2.frequency & 0x0f00) | ((data & 0xff) << 0);
-    break;
-
-  case 0xa002:
-    pulse2.frequency = (pulse2.frequency & 0x00ff) | ((data & 0x0f) << 8);
-    pulse2.enable = data & 0x80;
-    break;
-
-  case 0xb000:
-    sawtooth.rate = data & 0x3f;
-    break;
-
-  case 0xb001:
-    sawtooth.frequency = (sawtooth.frequency & 0x0f00) | ((data & 0xff) << 0);
-    break;
-
-  case 0xb002:
-    sawtooth.frequency = (sawtooth.frequency & 0x00ff) | ((data & 0x0f) << 8);
-    sawtooth.enable = data & 0x80;
-    break;
-
-  case 0xb003:
-    mirror = (data >> 2) & 3;
-    break;
-
-  case 0xc000: case 0xc001: case 0xc002: case 0xc003:
-    prg_bank[1] = data;
-    break;
-
-  case 0xd000: case 0xd001: case 0xd002: case 0xd003:
-    chr_bank[0 + (addr & 3)] = data;
-    break;
-
-  case 0xe000: case 0xe001: case 0xe002: case 0xe003:
-    chr_bank[4 + (addr & 3)] = data;
-    break;
-
-  case 0xf000:
-    irq_latch = data;
-    break;
-
-  case 0xf001:
-    irq_mode = data & 0x04;
-    irq_enable = data & 0x02;
-    irq_acknowledge = data & 0x01;
-    if(irq_enable) {
-      irq_counter = irq_latch;
-      irq_scalar = 341;
-    }
-    irq_line = 0;
-    break;
-
-  case 0xf002:
-    irq_enable = irq_acknowledge;
-    irq_line = 0;
-    break;
-  }
-}
-
-void power() {
-}
-
-void reset() {
-  prg_bank[0] = 0;
-  prg_bank[1] = 0;
-  chr_bank[0] = 0;
-  chr_bank[1] = 0;
-  chr_bank[2] = 0;
-  chr_bank[3] = 0;
-  chr_bank[4] = 0;
-  chr_bank[5] = 0;
-  chr_bank[6] = 0;
-  chr_bank[7] = 0;
-  mirror = 0;
-  irq_latch = 0;
-  irq_mode = 0;
-  irq_enable = 0;
-  irq_acknowledge = 0;
-
-  irq_counter = 0;
-  irq_scalar = 0;
-  irq_line = 0;
-
-  pulse1.mode = 0;
-  pulse1.duty = 0;
-  pulse1.volume = 0;
-  pulse1.enable = 0;
-  pulse1.frequency = 0;
-
-  pulse1.divider = 1;
-  pulse1.cycle = 0;
-  pulse1.output = 0;
-
-  pulse2.mode = 0;
-  pulse2.duty = 0;
-  pulse2.volume = 0;
-  pulse2.enable = 0;
-  pulse2.frequency = 0;
-
-  pulse2.divider = 1;
-  pulse2.cycle = 0;
-  pulse2.output = 0;
-
-  sawtooth.rate = 0;
-  sawtooth.enable = 0;
-  sawtooth.frequency = 0;
-
-  sawtooth.divider = 1;
-  sawtooth.phase = 0;
-  sawtooth.stage = 0;
-  sawtooth.accumulator = 0;
-  sawtooth.output = 0;
-}
-
-void serialize(serializer &s) {
-  pulse1.serialize(s);
-  pulse2.serialize(s);
-  sawtooth.serialize(s);
-
-  s.array(prg_bank);
-  s.array(chr_bank);
-  s.integer(mirror);
-  s.integer(irq_latch);
-  s.integer(irq_mode);
-  s.integer(irq_enable);
-  s.integer(irq_acknowledge);
-
-  s.integer(irq_counter);
-  s.integer(irq_scalar);
-  s.integer(irq_line);
-}
-
-VRC6(Board &board) : Chip(board) {
-}
-
-};

bsnes/fc/cartridge/chip/vrc7.cpp

@@ -1,154 +0,0 @@
-//Konami VRC7
-//Yamaha YM2413 OPLL audio - not emulated
-
-struct VRC7 : Chip {
-
-uint8 prg_bank[3];
-uint8 chr_bank[8];
-uint2 mirror;
-
-uint8 irq_latch;
-bool irq_mode;
-bool irq_enable;
-bool irq_acknowledge;
-
-uint8 irq_counter;
-signed irq_scalar;
-bool irq_line;
-
-void main() {
-  while(true) {
-    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
-      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
-    }
-
-    if(irq_enable) {
-      if(irq_mode == 0) {
-        irq_scalar -= 3;
-        if(irq_scalar <= 0) {
-          irq_scalar += 341;
-          if(irq_counter == 0xff) {
-            irq_counter = irq_latch;
-            irq_line = 1;
-          } else {
-            irq_counter++;
-          }
-        }
-      }
-
-      if(irq_mode == 1) {
-        if(irq_counter == 0xff) {
-          irq_counter = irq_latch;
-          irq_line = 1;
-        } else {
-          irq_counter++;
-        }
-      }
-    }
-    cpu.set_irq_line(irq_line);
-
-    tick();
-  }
-}
-
-void reg_write(unsigned addr, uint8 data) {
-  switch(addr) {
-  case 0x8000: prg_bank[0] = data; break;
-  case 0x8010: prg_bank[1] = data; break;
-  case 0x9000: prg_bank[2] = data; break;
-  case 0x9010: break;  //APU addr port
-  case 0x9030: break;  //APU data port
-  case 0xa000: chr_bank[0] = data; break;
-  case 0xa010: chr_bank[1] = data; break;
-  case 0xb000: chr_bank[2] = data; break;
-  case 0xb010: chr_bank[3] = data; break;
-  case 0xc000: chr_bank[4] = data; break;
-  case 0xc010: chr_bank[5] = data; break;
-  case 0xd000: chr_bank[6] = data; break;
-  case 0xd010: chr_bank[7] = data; break;
-  case 0xe000: mirror = data & 0x03; break;
-
-  case 0xe010:
-    irq_latch = data;
-    break;
-
-  case 0xf000:
-    irq_mode = data & 0x04;
-    irq_enable = data & 0x02;
-    irq_acknowledge = data & 0x01;
-    if(irq_enable) {
-      irq_counter = irq_latch;
-      irq_scalar = 341;
-    }
-    irq_line = 0;
-    break;
-
-  case 0xf010:
-    irq_enable = irq_acknowledge;
-    irq_line = 0;
-    break;
-  }
-}
-
-unsigned prg_addr(unsigned addr) const {
-  unsigned bank = 0;
-  switch(addr & 0xe000) {
-  case 0x8000: bank = prg_bank[0]; break;
-  case 0xa000: bank = prg_bank[1]; break;
-  case 0xc000: bank = prg_bank[2]; break;
-  case 0xe000: bank = 0xff; break;
-  }
-  return (bank * 0x2000) + (addr & 0x1fff);
-}
-
-unsigned chr_addr(unsigned addr) const {
-  unsigned bank = chr_bank[addr / 0x0400];
-  return (bank * 0x0400) + (addr & 0x03ff);
-}
-
-unsigned ciram_addr(unsigned addr) const {
-  switch(mirror) {
-  case 0: return ((addr & 0x0400) >> 0) | (addr & 0x03ff);  //vertical mirroring
-  case 1: return ((addr & 0x0800) >> 1) | (addr & 0x03ff);  //horizontal mirroring
-  case 2: return 0x0000 | (addr & 0x03ff);                  //one-screen mirroring (first)
-  case 3: return 0x0400 | (addr & 0x03ff);                  //one-screen mirroring (second)
-  }
-}
-
-void power() {
-}
-
-void reset() {
-  for(auto &n : prg_bank) n = 0;
-  for(auto &n : chr_bank) n = 0;
-  mirror = 0;
-
-  irq_latch = 0;
-  irq_mode = 0;
-  irq_enable = 0;
-  irq_acknowledge = 0;
-
-  irq_counter = 0;
-  irq_scalar = 0;
-  irq_line = 0;
-}
-
-void serialize(serializer &s) {
-  s.array(prg_bank);
-  s.array(chr_bank);
-  s.integer(mirror);
-
-  s.integer(irq_latch);
-  s.integer(irq_mode);
-  s.integer(irq_enable);
-  s.integer(irq_acknowledge);
-
-  s.integer(irq_counter);
-  s.integer(irq_scalar);
-  s.integer(irq_line);
-}
-
-VRC7(Board &board) : Chip(board) {
-}
-
-};

bsnes/fc/cheat/cheat.cpp

@@ -1,88 +0,0 @@
-#include <fc/fc.hpp>
-
-namespace Famicom {
-
-Cheat cheat;
-
-bool Cheat::decode(const string &code_, unsigned &addr, unsigned &data, unsigned &comp) {
-  static bool initialize = false;
-  static uint8 mapProActionReplay[256], mapGameGenie[256];
-
-  if(initialize == false) {
-    initialize = true;
-
-    for(auto &n : mapProActionReplay) n = ~0;
-    mapProActionReplay['0'] =  0; mapProActionReplay['1'] =  1; mapProActionReplay['2'] =  2; mapProActionReplay['3'] =  3;
-    mapProActionReplay['4'] =  4; mapProActionReplay['5'] =  5; mapProActionReplay['6'] =  6; mapProActionReplay['7'] =  7;
-    mapProActionReplay['8'] =  8; mapProActionReplay['9'] =  9; mapProActionReplay['A'] = 10; mapProActionReplay['B'] = 11;
-    mapProActionReplay['C'] = 12; mapProActionReplay['D'] = 13; mapProActionReplay['E'] = 14; mapProActionReplay['F'] = 15;
-
-    for(auto &n : mapGameGenie) n = ~0;
-    mapGameGenie['A'] =  0; mapGameGenie['P'] =  1; mapGameGenie['Z'] =  2; mapGameGenie['L'] =  3;
-    mapGameGenie['G'] =  4; mapGameGenie['I'] =  5; mapGameGenie['T'] =  6; mapGameGenie['Y'] =  7;
-    mapGameGenie['E'] =  8; mapGameGenie['O'] =  9; mapGameGenie['X'] = 10; mapGameGenie['U'] = 11;
-    mapGameGenie['K'] = 12; mapGameGenie['S'] = 13; mapGameGenie['V'] = 14; mapGameGenie['N'] = 15;
-  }
-
-  string code = code_;
-  code.upper();
-  unsigned length = code.length(), bits = 0;
-
-  if(code.wildcard("????:??")) {
-    code = { substr(code, 0, 4), substr(code, 5, 2) };
-    for(unsigned n = 0; n < 6; n++) if(mapProActionReplay[code[n]] > 15) return false;
-    bits = hex(code);
-    addr = (bits >> 8) & 0xffff;
-    data = (bits >> 0) & 0xff;
-    comp = ~0;
-    return true;
-  }
-
-  if(code.wildcard("????:??:??")) {
-    code = { substr(code, 0, 4), substr(code, 5, 2), substr(code, 8, 2) };
-    for(unsigned n = 0; n < 8; n++) if(mapProActionReplay[code[n]] > 15) return false;
-    bits = hex(code);
-    addr = (bits >> 16) & 0xffff;
-    data = (bits >>  8) & 0xff;
-    comp = (bits >>  0) & 0xff;
-    return true;
-  }
-
-  if(length == 6) {
-    for(unsigned n = 0; n < 6; n++) if(mapGameGenie[code[n]] > 15) return false;
-    for(unsigned n = 0; n < 6; n++) bits |= mapGameGenie[code[n]] << (20 - n * 4);
-    unsigned addrTable[] = { 10, 9, 8, 7, 2, 1, 0, 19, 14, 13, 12, 11, 6, 5, 4 };
-    unsigned dataTable[] = { 23, 18, 17, 16, 3, 22, 21, 20 };
-
-    addr = 0x8000, data = 0x00, comp = ~0;
-    for(unsigned n = 0; n < 15; n++) addr |= bits & (1 << addrTable[n]) ? 0x4000 >> n : 0;
-    for(unsigned n = 0; n <  8; n++) data |= bits & (1 << dataTable[n]) ?   0x80 >> n : 0;
-    return true;
-  }
-
-  if(length == 8) {
-    for(unsigned n = 0; n < 8; n++) if(mapGameGenie[code[n]] > 15) return false;
-    for(unsigned n = 0; n < 8; n++) bits |= mapGameGenie[code[n]] << (28 - n * 4);
-    unsigned addrTable[] = { 18, 17, 16, 15, 10, 9, 8, 27, 22, 21, 20, 19, 14, 13, 12 };
-    unsigned dataTable[] = { 31, 26, 25, 24, 3, 30, 29, 28 };
-    unsigned compTable[] = { 7, 2, 1, 0, 11, 6, 5,4 };
-
-    addr = 0x8000, data = 0x00, comp = 0x00;
-    for(unsigned n = 0; n < 15; n++) addr |= bits & (1 << addrTable[n]) ? 0x4000 >> n : 0;
-    for(unsigned n = 0; n <  8; n++) data |= bits & (1 << dataTable[n]) ?   0x80 >> n : 0;
-    for(unsigned n = 0; n <  8; n++) comp |= bits & (1 << compTable[n]) ?   0x80 >> n : 0;
-    return true;
-  }
-
-  return false;
-}
-
-void Cheat::synchronize() {
-  for(auto &n : override) n = false;
-
-  for(unsigned n = 0; n < size(); n++) {
-    override[operator[](n).addr] = true;
-  }
-}
-
-}

bsnes/fc/cheat/cheat.hpp

@@ -1,14 +0,0 @@
-struct CheatCode {
-  unsigned addr;
-  unsigned data;
-  unsigned comp;
-};
-
-struct Cheat : public vector<CheatCode> {
-  static bool decode(const string &code, unsigned &addr, unsigned &data, unsigned &comp);
-
-  void synchronize();
-  bool override[65536];
-};
-
-extern Cheat cheat;

bsnes/fc/cpu/cpu.cpp

@@ -1,110 +0,0 @@
-#include <fc/fc.hpp>
-
-namespace Famicom {
-
-#include "timing.cpp"
-#include "serialization.cpp"
-CPU cpu;
-
-void CPU::Enter() {
-  while(true) {
-    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
-      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
-    }
-
-    cpu.main();
-  }
-}
-
-void CPU::main() {
-  if(status.interrupt_pending) {
-    interrupt();
-    return;
-  }
-
-  exec();
-}
-
-void CPU::add_clocks(unsigned clocks) {
-  apu.clock -= clocks;
-  if(apu.clock < 0 && scheduler.sync != Scheduler::SynchronizeMode::All) co_switch(apu.thread);
-
-  ppu.clock -= clocks;
-  if(ppu.clock < 0 && scheduler.sync != Scheduler::SynchronizeMode::All) co_switch(ppu.thread);
-
-  cartridge.clock -= clocks;
-  if(cartridge.clock < 0 && scheduler.sync != Scheduler::SynchronizeMode::All) co_switch(cartridge.thread);
-}
-
-void CPU::power() {
-  R6502::power();
-
-  for(unsigned addr = 0; addr < 0x0800; addr++) ram[addr] = 0xff;
-  ram[0x0008] = 0xf7;
-  ram[0x0009] = 0xef;
-  ram[0x000a] = 0xdf;
-  ram[0x000f] = 0xbf;
-}
-
-void CPU::reset() {
-  R6502::reset();
-  create(CPU::Enter, 21477272);
-
-  regs.pc  = bus.read(0xfffc) << 0;
-  regs.pc |= bus.read(0xfffd) << 8;
-
-  status.interrupt_pending = false;
-  status.nmi_pending = false;
-  status.nmi_line = 0;
-  status.irq_line = 0;
-  status.irq_apu_line = 0;
-
-  status.rdy_line = 1;
-  status.rdy_addr = { false, 0x0000 };
-
-  status.oam_dma_pending = false;
-  status.oam_dma_page = 0x00;
-
-  status.controller_latch = false;
-  status.controller_port0 = 0;
-  status.controller_port1 = 0;
-}
-
-uint8 CPU::debugger_read(uint16 addr) {
-  return bus.read(addr);
-}
-
-uint8 CPU::ram_read(uint16 addr) {
-  return ram[addr & 0x07ff];
-}
-
-void CPU::ram_write(uint16 addr, uint8 data) {
-  ram[addr & 0x07ff] = data;
-}
-
-uint8 CPU::read(uint16 addr) {
-  if(addr == 0x4016) {
-    return (mdr() & 0xc0) | input.data(0);
-  }
-
-  if(addr == 0x4017) {
-    return (mdr() & 0xc0) | input.data(1);
-  }
-
-  return apu.read(addr);
-}
-
-void CPU::write(uint16 addr, uint8 data) {
-  if(addr == 0x4014) {
-    status.oam_dma_page = data;
-    status.oam_dma_pending = true;
-  }
-
-  if(addr == 0x4016) {
-    input.latch(data & 0x01);
-  }
-
-  return apu.write(addr, data);
-}
-
-}

bsnes/fc/cpu/cpu.hpp

@@ -1,55 +0,0 @@
-struct CPU : Processor::R6502, Thread {
-  uint8 ram[0x0800];
-
-  struct Status {
-    bool interrupt_pending;
-    bool nmi_pending;
-    bool nmi_line;
-    bool irq_line;
-    bool irq_apu_line;
-
-    bool rdy_line;
-    optional<uint16> rdy_addr;
-
-    bool oam_dma_pending;
-    uint8 oam_dma_page;
-
-    bool controller_latch;
-    unsigned controller_port0;
-    unsigned controller_port1;
-  } status;
-
-  static void Enter();
-  void main();
-  void add_clocks(unsigned clocks);
-
-  void power();
-  void reset();
-
-  uint8 debugger_read(uint16 addr);
-
-  uint8 ram_read(uint16 addr);
-  void ram_write(uint16 addr, uint8 data);
-
-  uint8 read(uint16 addr);
-  void write(uint16 addr, uint8 data);
-
-  void serialize(serializer&);
-
-  //timing.cpp
-  uint8 op_read(uint16 addr);
-  void op_write(uint16 addr, uint8 data);
-  void last_cycle();
-  void nmi(uint16 &vector);
-
-  void oam_dma();
-
-  void set_nmi_line(bool);
-  void set_irq_line(bool);
-  void set_irq_apu_line(bool);
-
-  void set_rdy_line(bool);
-  void set_rdy_addr(optional<uint16>);
-};
-
-extern CPU cpu;

bsnes/fc/cpu/serialization.cpp

@@ -1,23 +0,0 @@
-void CPU::serialize(serializer &s) {
-  R6502::serialize(s);
-  Thread::serialize(s);
-
-  s.array(ram);
-
-  s.integer(status.interrupt_pending);
-  s.integer(status.nmi_pending);
-  s.integer(status.nmi_line);
-  s.integer(status.irq_line);
-  s.integer(status.irq_apu_line);
-
-  s.integer(status.rdy_line);
-  s.integer(status.rdy_addr.valid);
-  s.integer(status.rdy_addr.value);
-
-  s.integer(status.oam_dma_pending);
-  s.integer(status.oam_dma_page);
-
-  s.integer(status.controller_latch);
-  s.integer(status.controller_port0);
-  s.integer(status.controller_port1);
-}

bsnes/fc/cpu/timing.cpp

@@ -1,63 +0,0 @@
-uint8 CPU::op_read(uint16 addr) {
-  if(status.oam_dma_pending) {
-    status.oam_dma_pending = false;
-    op_read(addr);
-    oam_dma();
-  }
-
-  while(status.rdy_line == 0) {
-    regs.mdr = bus.read(status.rdy_addr ? status.rdy_addr() : addr);
-    add_clocks(12);
-  }
-
-  regs.mdr = bus.read(addr);
-  add_clocks(12);
-  return regs.mdr;
-}
-
-void CPU::op_write(uint16 addr, uint8 data) {
-  bus.write(addr, regs.mdr = data);
-  add_clocks(12);
-}
-
-void CPU::last_cycle() {
-  status.interrupt_pending = ((status.irq_line | status.irq_apu_line) & ~regs.p.i) | status.nmi_pending;
-}
-
-void CPU::nmi(uint16 &vector) {
-  if(status.nmi_pending) {
-    status.nmi_pending = false;
-    vector = 0xfffa;
-  }
-}
-
-void CPU::oam_dma() {
-  for(unsigned n = 0; n < 256; n++) {
-    uint8 data = op_read((status.oam_dma_page << 8) + n);
-    op_write(0x2004, data);
-  }
-}
-
-void CPU::set_nmi_line(bool line) {
-  //edge-sensitive (0->1)
-  if(!status.nmi_line && line) status.nmi_pending = true;
-  status.nmi_line = line;
-}
-
-void CPU::set_irq_line(bool line) {
-  //level-sensitive
-  status.irq_line = line;
-}
-
-void CPU::set_irq_apu_line(bool line) {
-  //level-sensitive
-  status.irq_apu_line = line;
-}
-
-void CPU::set_rdy_line(bool line) {
-  status.rdy_line = line;
-}
-
-void CPU::set_rdy_addr(optional<uint16> addr) {
-  status.rdy_addr = addr;
-}

bsnes/fc/fc.hpp

@@ -1,62 +0,0 @@
-#ifndef FC_HPP
-#define FC_HPP
-
-#include <emulator/emulator.hpp>
-#include <processor/r6502/r6502.hpp>
-
-namespace Famicom {
-  namespace Info {
-    static const char Name[] = "bnes";
-    static const unsigned SerializerVersion = 2;
-  }
-}
-
-/*
-  bnes - Famicom emulator
-  authors: byuu, Ryphecha
-  license: GPLv3
-  project started: 2011-09-05
-*/
-
-#include <libco/libco.h>
-
-namespace Famicom {
-  struct Thread {
-    cothread_t thread;
-    unsigned frequency;
-    int64 clock;
-
-    inline void create(void (*entrypoint)(), unsigned frequency) {
-      if(thread) co_delete(thread);
-      thread = co_create(65536 * sizeof(void*), entrypoint);
-      this->frequency = frequency;
-      clock = 0;
-    }
-
-    inline void serialize(serializer &s) {
-      s.integer(frequency);
-      s.integer(clock);
-    }
-
-    inline Thread() : thread(nullptr) {
-    }
-
-    inline ~Thread() {
-      if(thread) co_delete(thread);
-    }
-  };
-
-  #include <fc/system/system.hpp>
-  #include <fc/scheduler/scheduler.hpp>
-  #include <fc/input/input.hpp>
-  #include <fc/memory/memory.hpp>
-  #include <fc/cartridge/cartridge.hpp>
-  #include <fc/cpu/cpu.hpp>
-  #include <fc/apu/apu.hpp>
-  #include <fc/ppu/ppu.hpp>
-  #include <fc/cheat/cheat.hpp>
-  #include <fc/video/video.hpp>
-  #include <fc/interface/interface.hpp>
-}
-
-#endif

bsnes/fc/input/input.cpp

@@ -1,53 +0,0 @@
-#include <fc/fc.hpp>
-
-namespace Famicom {
-
-#include "serialization.cpp"
-Input input;
-
-void Input::latch(bool data) {
-  latchdata = data;
-
-  if(latchdata == 1) {
-    counter1 = 0;
-    counter2 = 0;
-  }
-}
-
-bool Input::data(bool port) {
-  bool result = 0;
-
-  if(port == 0) {
-    if(port1 == Device::Joypad) {
-      if(counter1 >= 8) return 1;
-      result = interface->inputPoll(0, 0u, counter1);
-      if(latchdata == 0) counter1++;
-    }
-  }
-
-  if(port == 1) {
-    if(port2 == Device::Joypad) {
-      if(counter2 >= 8) return 1;
-      result = interface->inputPoll(1, 0u, counter2);
-      if(latchdata == 0) counter2++;
-    }
-  }
-
-  return result;
-}
-
-void Input::connect(bool port, Device device) {
-  if(port == 0) port1 = device, counter1 = 0;
-  if(port == 1) port2 = device, counter2 = 0;
-}
-
-void Input::power() {
-}
-
-void Input::reset() {
-  latchdata = 0;
-  counter1 = 0;
-  counter2 = 0;
-}
-
-}

bsnes/fc/input/input.hpp

@@ -1,25 +0,0 @@
-struct Input {
-  enum class Device : unsigned {
-    Joypad,
-    None,
-  };
-
-  void latch(bool data);
-  bool data(bool port);
-  void connect(bool port, Device device);
-
-  void power();
-  void reset();
-
-  void serialize(serializer &s);
-
-private:
-  Device port1;
-  Device port2;
-
-  bool latchdata;
-  unsigned counter1;
-  unsigned counter2;
-};
-
-extern Input input;

bsnes/fc/input/serialization.cpp

@@ -1,8 +0,0 @@
-void Input::serialize(serializer &s) {
-  s.integer((unsigned&)port1);
-  s.integer((unsigned&)port2);
-
-  s.integer(latchdata);
-  s.integer(counter1);
-  s.integer(counter2);
-}

bsnes/fc/interface/interface.cpp

@@ -1,155 +0,0 @@
-#include <fc/fc.hpp>
-
-namespace Famicom {
-
-Interface *interface = nullptr;
-
-double Interface::videoFrequency() {
-  return 21477272.0 / (262.0 * 1364.0 - 4.0);
-}
-
-double Interface::audioFrequency() {
-  return 21477272.0 / 12.0;
-}
-
-bool Interface::loaded() {
-  return cartridge.loaded();
-}
-
-string Interface::sha256() {
-  return cartridge.sha256();
-}
-
-unsigned Interface::group(unsigned id) {
-  switch(id) {
-  case ID::ProgramROM:
-  case ID::ProgramRAM:
-  case ID::CharacterROM:
-  case ID::CharacterRAM:
-    return 1;
-  }
-
-  throw;
-}
-
-void Interface::load(unsigned id, const string &manifest) {
-  cartridge.load(manifest);
-}
-
-void Interface::save() {
-  for(auto &memory : cartridge.memory) {
-    saveRequest(memory.id, memory.name);
-  }
-}
-
-void Interface::load(unsigned id, const stream &stream, const string &manifest) {
-  if(id == ID::ProgramROM) {
-    stream.read(cartridge.board->prgrom.data, min(cartridge.board->prgrom.size, stream.size()));
-  }
-
-  if(id == ID::ProgramRAM) {
-    stream.read(cartridge.board->prgram.data, min(cartridge.board->prgram.size, stream.size()));
-  }
-
-  if(id == ID::CharacterROM) {
-    stream.read(cartridge.board->chrrom.data, min(cartridge.board->chrrom.size, stream.size()));
-  }
-
-  if(id == ID::CharacterRAM) {
-    stream.read(cartridge.board->chrram.data, min(cartridge.board->chrram.size, stream.size()));
-  }
-}
-
-void Interface::save(unsigned id, const stream &stream) {
-  if(id == ID::ProgramRAM) {
-    stream.write(cartridge.board->prgram.data, cartridge.board->prgram.size);
-  }
-
-  if(id == ID::CharacterRAM) {
-    stream.write(cartridge.board->chrram.data, cartridge.board->chrram.size);
-  }
-}
-
-void Interface::unload() {
-  save();
-  cartridge.unload();
-}
-
-void Interface::power() {
-  system.power();
-}
-
-void Interface::reset() {
-  system.reset();
-}
-
-void Interface::run() {
-  system.run();
-}
-
-serializer Interface::serialize() {
-  system.runtosave();
-  return system.serialize();
-}
-
-bool Interface::unserialize(serializer &s) {
-  return system.unserialize(s);
-}
-
-void Interface::cheatSet(const lstring &list) {
-  cheat.reset();
-  for(auto &code : list) {
-    lstring codelist = code.split("+");
-    for(auto &part : codelist) {
-      unsigned addr, data, comp;
-      if(Cheat::decode(part, addr, data, comp)) cheat.append({addr, data, comp});
-    }
-  }
-  cheat.synchronize();
-}
-
-void Interface::paletteUpdate() {
-  video.generate_palette();
-}
-
-Interface::Interface() {
-  interface = this;
-
-  information.name        = "Famicom";
-  information.width       = 256;
-  information.height      = 240;
-  information.overscan    = true;
-  information.aspectRatio = 8.0 / 7.0;
-  information.resettable  = true;
-  information.capability.states = true;
-  information.capability.cheats = true;
-
-  media.append({ID::Famicom, "Famicom", "fc"});
-
-  {
-    Device device{0, ID::Port1 | ID::Port2, "Controller"};
-    device.input.append({0, 0, "A"     });
-    device.input.append({1, 0, "B"     });
-    device.input.append({2, 0, "Select"});
-    device.input.append({3, 0, "Start" });
-    device.input.append({4, 0, "Up"    });
-    device.input.append({5, 0, "Down"  });
-    device.input.append({6, 0, "Left"  });
-    device.input.append({7, 0, "Right" });
-    device.order = {4, 5, 6, 7, 1, 0, 2, 3};
-    this->device.append(device);
-  }
-
-  port.append({0, "Port 1"});
-  port.append({1, "Port 2"});
-
-  for(auto &device : this->device) {
-    for(auto &port : this->port) {
-      if(device.portmask & (1 << port.id)) {
-        port.device.append(device);
-      }
-    }
-  }
-}
-
-}

bsnes/fc/interface/interface.hpp

@@ -1,58 +0,0 @@
-#ifndef FC_HPP
-namespace Famicom {
-#endif
-
-struct ID {
-  enum : unsigned {
-    System,
-    Famicom,
-  };
-
-  enum : unsigned {
-    ProgramROM,
-    ProgramRAM,
-    CharacterROM,
-    CharacterRAM,
-  };
-
-  enum : unsigned {
-    Port1 = 1,
-    Port2 = 2,
-  };
-};
-
-struct Interface : Emulator::Interface {
-  double videoFrequency();
-  double audioFrequency();
-
-  bool loaded();
-  string sha256();
-  unsigned group(unsigned id);
-  void load(unsigned id, const string &manifest);
-  void save();
-  void load(unsigned id, const stream &stream, const string &manifest = "");
-  void save(unsigned id, const stream &stream);
-  void unload();
-
-  void power();
-  void reset();
-  void run();
-
-  serializer serialize();
-  bool unserialize(serializer&);
-
-  void cheatSet(const lstring&);
-
-  void paletteUpdate();
-
-  Interface();
-
-private:
-  vector<Device> device;
-};
-
-extern Interface *interface;
-
-#ifndef FC_HPP
-}
-#endif

bsnes/fc/memory/memory.cpp

@@ -1,41 +0,0 @@
-#include <fc/fc.hpp>
-
-namespace Famicom {
-
-Bus bus;
-
-//$0000-07ff = RAM (2KB)
-//$0800-1fff = RAM (mirror)
-//$2000-2007 = PPU
-//$2008-3fff = PPU (mirror)
-//$4000-4017 = APU + I/O
-//$4018-ffff = Cartridge
-
-uint8 Bus::read(uint16 addr) {
-  uint8 data = cartridge.prg_read(addr);
-       if(addr <= 0x1fff) data = cpu.ram_read(addr);
-  else if(addr <= 0x3fff) data = ppu.read(addr);
-  else if(addr <= 0x4017) data = cpu.read(addr);
-
-  if(cheat.override[addr]) {
-    for(unsigned n = 0; n < cheat.size(); n++) {
-      if(cheat[n].addr == addr) {
-        if(cheat[n].comp > 255 || cheat[n].comp == data) {
-          data = cheat[n].data;
-          break;
-        }
-      }
-    }
-  }
-
-  return data;
-}
-
-void Bus::write(uint16 addr, uint8 data) {
-  cartridge.prg_write(addr, data);
-  if(addr <= 0x1fff) return cpu.ram_write(addr, data);
-  if(addr <= 0x3fff) return ppu.write(addr, data);
-  if(addr <= 0x4017) return cpu.write(addr, data);
-}
-
-}

bsnes/fc/memory/memory.hpp

@@ -1,6 +0,0 @@
-struct Bus {
-  uint8 read(uint16 addr);
-  void write(uint16 addr, uint8 data);
-};
-
-extern Bus bus;

bsnes/fc/ppu/ppu.cpp

@@ -1,487 +0,0 @@
-#include <fc/fc.hpp>
-
-namespace Famicom {
-
-#include "serialization.cpp"
-PPU ppu;
-
-void PPU::Main() {
-  ppu.main();
-}
-
-void PPU::main() {
-  while(true) {
-    if(scheduler.sync == Scheduler::SynchronizeMode::PPU) {
-      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
-    }
-
-    raster_scanline();
-  }
-}
-
-void PPU::tick() {
-  if(status.ly == 240 && status.lx == 340) status.nmi_hold = 1;
-  if(status.ly == 241 && status.lx ==   0) status.nmi_flag = status.nmi_hold;
-  if(status.ly == 241 && status.lx ==   2) cpu.set_nmi_line(status.nmi_enable && status.nmi_flag);
-
-  if(status.ly == 260 && status.lx == 340) status.sprite_zero_hit = 0, status.sprite_overflow = 0;
-
-  if(status.ly == 260 && status.lx == 340) status.nmi_hold = 0;
-  if(status.ly == 261 && status.lx ==   0) status.nmi_flag = status.nmi_hold;
-  if(status.ly == 261 && status.lx ==   2) cpu.set_nmi_line(status.nmi_enable && status.nmi_flag);
-
-  clock += 4;
-  if(clock >= 0) co_switch(cpu.thread);
-
-  status.lx++;
-}
-
-void PPU::scanline() {
-  status.lx = 0;
-  if(++status.ly == 262) {
-    status.ly = 0;
-    frame();
-  }
-  cartridge.scanline(status.ly);
-}
-
-void PPU::frame() {
-  status.field ^= 1;
-  scheduler.exit(Scheduler::ExitReason::FrameEvent);
-}
-
-void PPU::power() {
-}
-
-void PPU::reset() {
-  create(PPU::Main, 21477272);
-
-  status.mdr = 0x00;
-  status.field = 0;
-  status.ly = 0;
-  status.bus_data = 0x00;
-  status.address_latch = 0;
-
-  status.vaddr = 0x0000;
-  status.taddr = 0x0000;
-  status.xaddr = 0x00;
-
-  status.nmi_hold = 0;
-  status.nmi_flag = 0;
-
-  //$2000
-  status.nmi_enable = false;
-  status.master_select = 0;
-  status.sprite_size = 0;
-  status.bg_addr = 0x0000;
-  status.sprite_addr = 0x0000;
-  status.vram_increment = 1;
-
-  //$2001
-  status.emphasis = 0;
-  status.sprite_enable = false;
-  status.bg_enable = false;
-  status.sprite_edge_enable = false;
-  status.bg_edge_enable = false;
-  status.grayscale = false;
-
-  //$2002
-  status.sprite_zero_hit = false;
-  status.sprite_overflow = false;
-
-  //$2003
-  status.oam_addr = 0x00;
-
-  for(auto &n : buffer) n = 0;
-  for(auto &n : ciram ) n = 0;
-  for(auto &n : cgram ) n = 0;
-  for(auto &n : oam   ) n = 0;
-}
-
-uint8 PPU::read(uint16 addr) {
-  uint8 result = 0x00;
-
-  switch(addr & 7) {
-  case 2:  //PPUSTATUS
-    result |= status.nmi_flag << 7;
-    result |= status.sprite_zero_hit << 6;
-    result |= status.sprite_overflow << 5;
-    result |= status.mdr & 0x1f;
-    status.address_latch = 0;
-    status.nmi_hold = 0;
-    cpu.set_nmi_line(status.nmi_flag = 0);
-    break;
-  case 4:  //OAMDATA
-    result = oam[status.oam_addr];
-    if((status.oam_addr & 3) == 3) result &= 0xe3;
-    break;
-  case 7:  //PPUDATA
-    if(raster_enable() && (status.ly <= 240 || status.ly == 261)) return 0x00;
-
-    addr = status.vaddr & 0x3fff;
-    if(addr <= 0x1fff) {
-      result = status.bus_data;
-      status.bus_data = cartridge.chr_read(addr);
-    } else if(addr <= 0x3eff) {
-      result = status.bus_data;
-      status.bus_data = cartridge.chr_read(addr);
-    } else if(addr <= 0x3fff) {
-      result = cgram_read(addr);
-      status.bus_data = cartridge.chr_read(addr);
-    }
-    status.vaddr += status.vram_increment;
-    break;
-  }
-
-  return result;
-}
-
-void PPU::write(uint16 addr, uint8 data) {
-  status.mdr = data;
-
-  switch(addr & 7) {
-  case 0:  //PPUCTRL
-    status.nmi_enable = data & 0x80;
-    status.master_select = data & 0x40;
-    status.sprite_size = data & 0x20;
-    status.bg_addr = (data & 0x10) ? 0x1000 : 0x0000;
-    status.sprite_addr = (data & 0x08) ? 0x1000 : 0x0000;
-    status.vram_increment = (data & 0x04) ? 32 : 1;
-    status.taddr = (status.taddr & 0x73ff) | ((data & 0x03) << 10);
-    cpu.set_nmi_line(status.nmi_enable && status.nmi_hold && status.nmi_flag);
-    return;
-  case 1:  //PPUMASK
-    status.emphasis = data >> 5;
-    status.sprite_enable = data & 0x10;
-    status.bg_enable = data & 0x08;
-    status.sprite_edge_enable = data & 0x04;
-    status.bg_edge_enable = data & 0x02;
-    status.grayscale = data & 0x01;
-    return;
-  case 2:  //PPUSTATUS
-    return;
-  case 3:  //OAMADDR
-    status.oam_addr = data;
-    return;
-  case 4:  //OAMDATA
-    oam[status.oam_addr++] = data;
-    return;
-  case 5:  //PPUSCROLL
-    if(status.address_latch == 0) {
-      status.xaddr = data & 0x07;
-      status.taddr = (status.taddr & 0x7fe0) | (data >> 3);
-    } else {
-      status.taddr = (status.taddr & 0x0c1f) | ((data & 0x07) << 12) | ((data >> 3) << 5);
-    }
-    status.address_latch ^= 1;
-    return;
-  case 6:  //PPUADDR
-    if(status.address_latch == 0) {
-      status.taddr = (status.taddr & 0x00ff) | ((data & 0x3f) << 8);
-    } else {
-      status.taddr = (status.taddr & 0x7f00) | data;
-      status.vaddr = status.taddr;
-    }
-    status.address_latch ^= 1;
-    return;
-  case 7:  //PPUDATA
-    if(raster_enable() && (status.ly <= 240 || status.ly == 261)) return;
-
-    addr = status.vaddr & 0x3fff;
-    if(addr <= 0x1fff) {
-      cartridge.chr_write(addr, data);
-    } else if(addr <= 0x3eff) {
-      cartridge.chr_write(addr, data);
-    } else if(addr <= 0x3fff) {
-      cgram_write(addr, data);
-    }
-    status.vaddr += status.vram_increment;
-    return;
-  }
-}
-
-uint8 PPU::ciram_read(uint16 addr) {
-  return ciram[addr & 0x07ff];
-}
-
-void PPU::ciram_write(uint16 addr, uint8 data) {
-  ciram[addr & 0x07ff] = data;
-}
-
-uint8 PPU::cgram_read(uint16 addr) {
-  if((addr & 0x13) == 0x10) addr &= ~0x10;
-  uint8 data = cgram[addr & 0x1f];
-  if(status.grayscale) data &= 0x30;
-  return data;
-}
-
-void PPU::cgram_write(uint16 addr, uint8 data) {
-  if((addr & 0x13) == 0x10) addr &= ~0x10;
-  cgram[addr & 0x1f] = data;
-}
-
-//
-
-//vaddr = 0yyy VHYY  YYYX XXXX
-//yyy = fine Yscroll (y:d0-d2)
-//V = V nametable (y:d8)
-//H = H nametable (x:d8)
-//YYYYY = Y nametable (y:d3-d7)
-//XXXXX = X nametable (x:d3-d7)
-
-bool PPU::raster_enable() const {
-  return (status.bg_enable || status.sprite_enable);
-}
-
-unsigned PPU::nametable_addr() const {
-  return 0x2000 + (status.vaddr & 0x0c00);
-}
-
-unsigned PPU::scrollx() const {
-  return ((status.vaddr & 0x1f) << 3) | status.xaddr;
-}
-
-unsigned PPU::scrolly() const {
-  return (((status.vaddr >> 5) & 0x1f) << 3) | ((status.vaddr >> 12) & 7);
-}
-
-unsigned PPU::sprite_height() const {
-  return status.sprite_size == 0 ? 8 : 16;
-}
-
-//
-
-uint8 PPU::chr_load(uint16 addr) {
-  if(raster_enable() == false) return 0x00;
-  return cartridge.chr_read(addr);
-}
-
-//
-
-void PPU::scrollx_increment() {
-  if(raster_enable() == false) return;
-  status.vaddr = (status.vaddr & 0x7fe0) | ((status.vaddr + 0x0001) & 0x001f);
-  if((status.vaddr & 0x001f) == 0x0000) {
-    status.vaddr ^= 0x0400;
-  }
-}
-
-void PPU::scrolly_increment() {
-  if(raster_enable() == false) return;
-  status.vaddr = (status.vaddr & 0x0fff) | ((status.vaddr + 0x1000) & 0x7000);
-  if((status.vaddr & 0x7000) == 0x0000) {
-    status.vaddr = (status.vaddr & 0x7c1f) | ((status.vaddr + 0x0020) & 0x03e0);
-    if((status.vaddr & 0x03e0) == 0x03c0) {  //0x03c0 == 30 << 5; 30 * 8 = 240
-      status.vaddr &= 0x7c1f;
-      status.vaddr ^= 0x0800;
-    }
-  }
-}
-
-//
-
-void PPU::raster_pixel() {
-  uint32 *output = buffer + status.ly * 256;
-
-  unsigned mask = 0x8000 >> (status.xaddr + (status.lx & 7));
-  unsigned palette = 0, object_palette = 0;
-  bool object_priority = 0;
-  palette |= (raster.tiledatalo & mask) ? 1 : 0;
-  palette |= (raster.tiledatahi & mask) ? 2 : 0;
-  if(palette) {
-    unsigned attr = raster.attribute;
-    if(mask >= 256) attr >>= 2;
-    palette |= (attr & 3) << 2;
-  }
-
-  if(status.bg_enable == false) palette = 0;
-  if(status.bg_edge_enable == false && status.lx < 8) palette = 0;
-
-  if(status.sprite_enable == true)
-  for(signed sprite = 7; sprite >= 0; sprite--) {
-    if(status.sprite_edge_enable == false && status.lx < 8) continue;
-    if(raster.oam[sprite].id == 64) continue;
-
-    unsigned spritex = status.lx - raster.oam[sprite].x;
-    if(spritex >= 8) continue;
-
-    if(raster.oam[sprite].attr & 0x40) spritex ^= 7;
-    unsigned mask = 0x80 >> spritex;
-    unsigned sprite_palette = 0;
-    sprite_palette |= (raster.oam[sprite].tiledatalo & mask) ? 1 : 0;
-    sprite_palette |= (raster.oam[sprite].tiledatahi & mask) ? 2 : 0;
-    if(sprite_palette == 0) continue;
-
-    if(raster.oam[sprite].id == 0 && palette && status.lx != 255) status.sprite_zero_hit = 1;
-    sprite_palette |= (raster.oam[sprite].attr & 3) << 2;
-
-    object_priority = raster.oam[sprite].attr & 0x20;
-    object_palette = 16 + sprite_palette;
-  }
-
-  if(object_palette) {
-    if(palette == 0 || object_priority == 0) palette = object_palette;
-  }
-
-  if(raster_enable() == false) palette = 0;
-  output[status.lx] = video.palette[(status.emphasis << 6) | cgram_read(palette)];
-}
-
-void PPU::raster_sprite() {
-  if(raster_enable() == false) return;
-
-  unsigned n = raster.oam_iterator++;
-  signed ly = (status.ly == 261 ? -1 : status.ly);
-  unsigned y = ly - oam[(n * 4) + 0];
-
-  if(y >= sprite_height()) return;
-  if(raster.oam_counter == 8) {
-    status.sprite_overflow = 1;
-    return;
-  }
-
-  raster.soam[raster.oam_counter].id   = n;
-  raster.soam[raster.oam_counter].y    = oam[(n * 4) + 0];
-  raster.soam[raster.oam_counter].tile = oam[(n * 4) + 1];
-  raster.soam[raster.oam_counter].attr = oam[(n * 4) + 2];
-  raster.soam[raster.oam_counter].x    = oam[(n * 4) + 3];
-  raster.oam_counter++;
-}
-
-void PPU::raster_scanline() {
-  if((status.ly >= 240 && status.ly <= 260)) {
-    for(unsigned x = 0; x < 341; x++) tick();
-    return scanline();
-  }
-
-  raster.oam_iterator = 0;
-  raster.oam_counter = 0;
-
-  for(unsigned n = 0; n < 8; n++) {
-    raster.soam[n].id   = 64;
-    raster.soam[n].y    = 0xff;
-    raster.soam[n].tile = 0xff;
-    raster.soam[n].attr = 0xff;
-    raster.soam[n].x    = 0xff;
-    raster.soam[n].tiledatalo = 0;
-    raster.soam[n].tiledatahi = 0;
-  }
-
-  for(unsigned tile = 0; tile < 32; tile++) {  //  0-255
-    unsigned nametable = chr_load(0x2000 | (status.vaddr & 0x0fff));
-    unsigned tileaddr = status.bg_addr + (nametable << 4) + (scrolly() & 7);
-    raster_pixel();
-    tick();
-
-    raster_pixel();
-    tick();
-
-    unsigned attribute = chr_load(0x23c0 | (status.vaddr & 0x0fc0) | ((scrolly() >> 5) << 3) | (scrollx() >> 5));
-    if(scrolly() & 16) attribute >>= 4;
-    if(scrollx() & 16) attribute >>= 2;
-    raster_pixel();
-    tick();
-
-    scrollx_increment();
-    if(tile == 31) scrolly_increment();
-    raster_pixel();
-    raster_sprite();
-    tick();
-
-    unsigned tiledatalo = chr_load(tileaddr + 0);
-    raster_pixel();
-    tick();
-
-    raster_pixel();
-    tick();
-
-    unsigned tiledatahi = chr_load(tileaddr + 8);
-    raster_pixel();
-    tick();
-
-    raster_pixel();
-    raster_sprite();
-    tick();
-
-    raster.nametable = (raster.nametable << 8) | nametable;
-    raster.attribute = (raster.attribute << 2) | (attribute & 3);
-    raster.tiledatalo = (raster.tiledatalo << 8) | tiledatalo;
-    raster.tiledatahi = (raster.tiledatahi << 8) | tiledatahi;
-  }
-
-  for(unsigned n = 0; n < 8; n++) raster.oam[n] = raster.soam[n];
-
-  for(unsigned sprite = 0; sprite < 8; sprite++) {  //256-319
-    unsigned nametable = chr_load(0x2000 | (status.vaddr & 0x0fff));
-    tick();
-
-    if(raster_enable() && sprite == 0) status.vaddr = (status.vaddr & 0x7be0) | (status.taddr & 0x041f);  //257
-    tick();
-
-    unsigned attribute = chr_load(0x23c0 | (status.vaddr & 0x0fc0) | ((scrolly() >> 5) << 3) | (scrollx() >> 5));
-    unsigned tileaddr = (sprite_height() == 8)
-    ? status.sprite_addr + raster.oam[sprite].tile * 16
-    : ((raster.oam[sprite].tile & ~1) * 16) + ((raster.oam[sprite].tile & 1) * 0x1000);
-    tick();
-    tick();
-
-    unsigned spritey = (status.ly - raster.oam[sprite].y) & (sprite_height() - 1);
-    if(raster.oam[sprite].attr & 0x80) spritey ^= (sprite_height() - 1);
-    tileaddr += spritey + (spritey & 8);
-
-    raster.oam[sprite].tiledatalo = chr_load(tileaddr + 0);
-    tick();
-    tick();
-
-    raster.oam[sprite].tiledatahi = chr_load(tileaddr + 8);
-    tick();
-    tick();
-
-    if(raster_enable() && sprite == 6 && status.ly == 261) status.vaddr = status.taddr;  //304
-  }
-
-  for(unsigned tile = 0; tile < 2; tile++) {  //320-335
-    unsigned nametable = chr_load(0x2000 | (status.vaddr & 0x0fff));
-    unsigned tileaddr = status.bg_addr + (nametable << 4) + (scrolly() & 7);
-    tick();
-    tick();
-
-    unsigned attribute = chr_load(0x23c0 | (status.vaddr & 0x0fc0) | ((scrolly() >> 5) << 3) | (scrollx() >> 5));
-    if(scrolly() & 16) attribute >>= 4;
-    if(scrollx() & 16) attribute >>= 2;
-    tick();
-
-    scrollx_increment();
-    tick();
-
-    unsigned tiledatalo = chr_load(tileaddr + 0);
-    tick();
-    tick();
-
-    unsigned tiledatahi = chr_load(tileaddr + 8);
-    tick();
-    tick();
-
-    raster.nametable = (raster.nametable << 8) | nametable;
-    raster.attribute = (raster.attribute << 2) | (attribute & 3);
-    raster.tiledatalo = (raster.tiledatalo << 8) | tiledatalo;
-    raster.tiledatahi = (raster.tiledatahi << 8) | tiledatahi;
-  }
-
-  //336-339
-  chr_load(0x2000 | (status.vaddr & 0x0fff));
-  tick();
-  bool skip = (raster_enable() && status.field == 1 && status.ly == 261);
-  tick();
-
-  chr_load(0x2000 | (status.vaddr & 0x0fff));
-  tick();
-  tick();
-
-  //340
-  if(skip == false) tick();
-
-  return scanline();
-}
-
-}

bsnes/fc/ppu/ppu.hpp

@@ -1,107 +0,0 @@
-struct PPU : Thread {
-  static void Main();
-  void main();
-  void tick();
-
-  void scanline();
-  void frame();
-
-  void power();
-  void reset();
-
-  uint8 read(uint16 addr);
-  void write(uint16 addr, uint8 data);
-
-  uint8 ciram_read(uint16 addr);
-  void ciram_write(uint16 addr, uint8 data);
-
-  uint8 cgram_read(uint16 addr);
-  void cgram_write(uint16 addr, uint8 data);
-
-  bool raster_enable() const;
-  unsigned nametable_addr() const;
-  unsigned scrollx() const;
-  unsigned scrolly() const;
-  unsigned sprite_height() const;
-
-  uint8 chr_load(uint16 addr);
-
-  void scrollx_increment();
-  void scrolly_increment();
-
-  void raster_pixel();
-  void raster_sprite();
-  void raster_scanline();
-
-  void serialize(serializer&);
-
-  struct Status {
-    uint8 mdr;
-
-    bool field;
-    unsigned lx;
-    unsigned ly;
-
-    uint8 bus_data;
-
-    bool address_latch;
-
-    uint15 vaddr;
-    uint15 taddr;
-    uint8 xaddr;
-
-    bool nmi_hold;
-    bool nmi_flag;
-
-    //$2000
-    bool nmi_enable;
-    bool master_select;
-    bool sprite_size;
-    unsigned bg_addr;
-    unsigned sprite_addr;
-    unsigned vram_increment;
-
-    //$2001
-    uint3 emphasis;
-    bool sprite_enable;
-    bool bg_enable;
-    bool sprite_edge_enable;
-    bool bg_edge_enable;
-    bool grayscale;
-
-    //$2002
-    bool sprite_zero_hit;
-    bool sprite_overflow;
-
-    //$2003
-    uint8 oam_addr;
-  } status;
-
-  struct Raster {
-    uint16 nametable;
-    uint16 attribute;
-    uint16 tiledatalo;
-    uint16 tiledatahi;
-
-    unsigned oam_iterator;
-    unsigned oam_counter;
-
-    struct OAM {
-      uint8 id;
-      uint8 y;
-      uint8 tile;
-      uint8 attr;
-      uint8 x;
-
-      uint8 tiledatalo;
-      uint8 tiledatahi;
-    } oam[8], soam[8];
-  } raster;
-
-  uint32 buffer[256 * 262];
-  uint8 ciram[2048];
-  uint8 cgram[32];
-  uint8 oam[256];
-};
-
-extern PPU ppu;

bsnes/fc/ppu/serialization.cpp

@@ -1,74 +0,0 @@
-void PPU::serialize(serializer &s) {
-  Thread::serialize(s);
-
-  s.integer(status.mdr);
-
-  s.integer(status.field);
-  s.integer(status.lx);
-  s.integer(status.ly);
-
-  s.integer(status.bus_data);
-
-  s.integer(status.address_latch);
-
-  s.integer(status.vaddr);
-  s.integer(status.taddr);
-  s.integer(status.xaddr);
-
-  s.integer(status.nmi_hold);
-  s.integer(status.nmi_flag);
-
-  s.integer(status.nmi_enable);
-  s.integer(status.master_select);
-  s.integer(status.sprite_size);
-  s.integer(status.bg_addr);
-  s.integer(status.sprite_addr);
-  s.integer(status.vram_increment);
-
-  s.integer(status.emphasis);
-  s.integer(status.sprite_enable);
-  s.integer(status.bg_enable);
-  s.integer(status.sprite_edge_enable);
-  s.integer(status.bg_edge_enable);
-  s.integer(status.grayscale);
-
-  s.integer(status.sprite_zero_hit);
-  s.integer(status.sprite_overflow);
-
-  s.integer(status.oam_addr);
-
-  s.integer(raster.nametable);
-  s.integer(raster.attribute);
-  s.integer(raster.tiledatalo);
-  s.integer(raster.tiledatahi);
-
-  s.integer(raster.oam_iterator);
-  s.integer(raster.oam_counter);
-
-  for(unsigned n = 0; n < 8; n++) {
-    s.integer(raster.oam[n].id);
-    s.integer(raster.oam[n].y);
-    s.integer(raster.oam[n].tile);
-    s.integer(raster.oam[n].attr);
-    s.integer(raster.oam[n].x);
-
-    s.integer(raster.oam[n].tiledatalo);
-    s.integer(raster.oam[n].tiledatahi);
-  }
-
-  for(unsigned n = 0; n < 8; n++) {
-    s.integer(raster.soam[n].id);
-    s.integer(raster.soam[n].y);
-    s.integer(raster.soam[n].tile);
-    s.integer(raster.soam[n].attr);
-    s.integer(raster.soam[n].x);
-
-    s.integer(raster.soam[n].tiledatalo);
-    s.integer(raster.soam[n].tiledatahi);
-  }
-
-  s.array(buffer);
-  s.array(ciram);
-  s.array(cgram);
-  s.array(oam);
-}

bsnes/fc/scheduler/scheduler.cpp

@@ -1,28 +0,0 @@
-#include <fc/fc.hpp>
-
-namespace Famicom {
-
-Scheduler scheduler;
-
-void Scheduler::enter() {
-  host_thread = co_active();
-  co_switch(thread);
-}
-
-void Scheduler::exit(ExitReason reason) {
-  exit_reason = reason;
-  thread = co_active();
-  co_switch(host_thread);
-}
-
-void Scheduler::power() {
-}
-
-void Scheduler::reset() {
-  host_thread = co_active();
-  thread = cpu.thread;
-  sync = SynchronizeMode::None;
-  exit_reason = ExitReason::UnknownEvent;
-}
-
-}

bsnes/fc/scheduler/scheduler.hpp

@@ -1,16 +0,0 @@
-struct Scheduler : property<Scheduler> {
-  enum class SynchronizeMode : unsigned { None, PPU, All } sync;
-  enum class ExitReason : unsigned { UnknownEvent, FrameEvent, SynchronizeEvent };
-  readonly<ExitReason> exit_reason;
-
-  cothread_t host_thread;  //program thread (used to exit emulation)
-  cothread_t thread;       //active emulation thread (used to enter emulation)
-
-  void enter();
-  void exit(ExitReason);
-
-  void power();
-  void reset();
-};
-
-extern Scheduler scheduler;

bsnes/fc/system/serialization.cpp

@@ -1,60 +0,0 @@
-serializer System::serialize() {
-  serializer s(serialize_size);
-
-  unsigned signature = 0x31545342, version = Info::SerializerVersion;
-  char hash[64], description[512];
-  memcpy(&hash, (const char*)cartridge.sha256(), 64);
-  memset(&description, 0, sizeof description);
-
-  s.integer(signature);
-  s.integer(version);
-  s.array(hash);
-  s.array(description);
-
-  serialize_all(s);
-  return s;
-}
-
-bool System::unserialize(serializer &s) {
-  unsigned signature, version;
-  char hash[64], description[512];
-
-  s.integer(signature);
-  s.integer(version);
-  s.array(hash);
-  s.array(description);
-
-  if(signature != 0x31545342) return false;
-  if(version != Info::SerializerVersion) return false;
-
-  power();
-  serialize_all(s);
-  return true;
-}
-
-void System::serialize(serializer &s) {
-}
-
-void System::serialize_all(serializer &s) {
-  system.serialize(s);
-  input.serialize(s);
-  cartridge.serialize(s);
-  cpu.serialize(s);
-  apu.serialize(s);
-  ppu.serialize(s);
-}
-
-void System::serialize_init() {
-  serializer s;
-
-  unsigned signature = 0, version = 0;
-  char hash[64], description[512];
-
-  s.integer(signature);
-  s.integer(version);
-  s.array(hash);
-  s.array(description);
-
-  serialize_all(s);
-  serialize_size = s.size();
-}

bsnes/fc/system/system.cpp

@@ -1,76 +0,0 @@
-#include <fc/fc.hpp>
-
-namespace Famicom {
-
-#include "serialization.cpp"
-System system;
-
-void System::run() {
-  scheduler.enter();
-  if(scheduler.exit_reason() == Scheduler::ExitReason::FrameEvent) {
-    interface->videoRefresh(ppu.buffer, 4 * 256, 256, 240);
-  }
-}
-
-void System::runtosave() {
-  scheduler.sync = Scheduler::SynchronizeMode::PPU;
-  runthreadtosave();
-
-  scheduler.sync = Scheduler::SynchronizeMode::All;
-  scheduler.thread = cpu.thread;
-  runthreadtosave();
-
-  scheduler.sync = Scheduler::SynchronizeMode::All;
-  scheduler.thread = apu.thread;
-  runthreadtosave();
-
-  scheduler.sync = Scheduler::SynchronizeMode::All;
-  scheduler.thread = cartridge.thread;
-  runthreadtosave();
-
-  scheduler.sync = Scheduler::SynchronizeMode::None;
-}
-
-void System::runthreadtosave() {
-  while(true) {
-    scheduler.enter();
-    if(scheduler.exit_reason() == Scheduler::ExitReason::SynchronizeEvent) break;
-    if(scheduler.exit_reason() == Scheduler::ExitReason::FrameEvent) {
-      interface->videoRefresh(ppu.buffer, 4 * 256, 256, 240);
-    }
-  }
-}
-
-void System::load() {
-  serialize_init();
-}
-
-void System::power() {
-  cartridge.power();
-  cpu.power();
-  apu.power();
-  ppu.power();
-  input.reset();
-  scheduler.power();
-  reset();
-}
-
-void System::reset() {
-  cartridge.reset();
-  cpu.reset();
-  apu.reset();
-  ppu.reset();
-  input.reset();
-  scheduler.reset();
-}
-
-void System::init() {
-  assert(interface != 0);
-  input.connect(0, Input::Device::Joypad);
-  input.connect(1, Input::Device::None);
-}
-
-void System::term() {
-}
-
-}

bsnes/fc/system/system.hpp

@@ -1,22 +0,0 @@
-struct System {
-  void run();
-  void runtosave();
-  void runthreadtosave();
-
-  void load();
-  void power();
-  void reset();
-
-  void init();
-  void term();
-
-  serializer serialize();
-  bool unserialize(serializer&);
-
-  void serialize(serializer&);
-  void serialize_all(serializer&);
-  void serialize_init();
-  unsigned serialize_size;
-};
-
-extern System system;

bsnes/fc/video/video.cpp

@@ -1,68 +0,0 @@
-#include <fc/fc.hpp>
-
-#define VIDEO_CPP
-namespace Famicom {
-
-Video video;
-
-void Video::generate_palette() {
-  for(unsigned n = 0; n < (1 << 9); n++) palette[n] = generate_color(n, 2.0, 0.0, 1.0, 1.0, 1.8);
-}
-
-Video::Video() {
-  palette = new unsigned[1 << 9];
-}
-
-Video::~Video() {
-  delete[] palette;
-}
-
-uint32_t Video::generate_color(
-  unsigned n, double saturation, double hue,
-  double contrast, double brightness, double gamma
-) {
-  signed color = (n & 0x0f), level = color < 0xe ? (n >> 4) & 3 : 1;
-
-  static const double black = 0.518, white = 1.962, attenuation = 0.746;
-  static const double levels[8] = {
-    0.350, 0.518, 0.962, 1.550,
-    1.094, 1.506, 1.962, 1.962,
-  };
-
-  double lo_and_hi[2] = {
-    levels[level + 4 * (color == 0x0)],
-    levels[level + 4 * (color <  0xd)],
-  };
-
-  double y = 0.0, i = 0.0, q = 0.0;
-  auto wave = [](signed p, signed color) { return (color + p + 8) % 12 < 6; };
-  for(signed p = 0; p < 12; p++) {
-    double spot = lo_and_hi[wave(p, color)];
-
-    if(((n & 0x040) && wave(p, 12))
-    || ((n & 0x080) && wave(p,  4))
-    || ((n & 0x100) && wave(p,  8))
-    ) spot *= attenuation;
-
-    double v = (spot - black) / (white - black);
-
-    v = (v - 0.5) * contrast + 0.5;
-    v *= brightness / 12.0;
-
-    y += v;
-    i += v * std::cos((3.141592653 / 6.0) * (p + hue));
-    q += v * std::sin((3.141592653 / 6.0) * (p + hue));
-  }
-
-  i *= saturation;
-  q *= saturation;
-
-  auto gammaAdjust = [=](double f) { return f < 0.0 ? 0.0 : std::pow(f, 2.2 / gamma); };
-  unsigned r = 65535.0 * gammaAdjust(y +  0.946882 * i +  0.623557 * q);
-  unsigned g = 65535.0 * gammaAdjust(y + -0.274788 * i + -0.635691 * q);
-  unsigned b = 65535.0 * gammaAdjust(y + -1.108545 * i +  1.709007 * q);
-
-  return interface->videoColor(n, uclamp<16>(r), uclamp<16>(g), uclamp<16>(b));
-}
-
-}

bsnes/fc/video/video.hpp

@@ -1,12 +0,0 @@
-struct Video {
-  unsigned *palette;
-  void generate_palette();
-
-  Video();
-  ~Video();
-
-private:
-  uint32_t generate_color(unsigned, double, double, double, double, double);
-};
-
-extern Video video;

bsnes/gb/Makefile

@@ -1,16 +0,0 @@
-gb_objects := gb-interface gb-system gb-scheduler
-gb_objects += gb-memory gb-cartridge
-gb_objects += gb-cpu gb-ppu gb-apu
-gb_objects += gb-cheat gb-video
-objects += $(gb_objects)
-
-obj/gb-interface.o: $(gb)/interface/interface.cpp $(call rwildcard,$(gb)/interface/)
-obj/gb-system.o:    $(gb)/system/system.cpp $(call rwildcard,$(gb)/system/)
-obj/gb-scheduler.o: $(gb)/scheduler/scheduler.cpp $(call rwildcard,$(gb)/scheduler/)
-obj/gb-cartridge.o: $(gb)/cartridge/cartridge.cpp $(call rwildcard,$(gb)/cartridge/)
-obj/gb-memory.o:    $(gb)/memory/memory.cpp $(call rwildcard,$(gb)/memory/)
-obj/gb-cpu.o:       $(gb)/cpu/cpu.cpp $(call rwildcard,$(gb)/cpu/)
-obj/gb-ppu.o:       $(gb)/ppu/ppu.cpp $(call rwildcard,$(gb)/ppu/)
-obj/gb-apu.o:       $(gb)/apu/apu.cpp $(call rwildcard,$(gb)/apu/)
-obj/gb-cheat.o:     $(gb)/cheat/cheat.cpp $(call rwildcard,$(gb)/cheat/)
-obj/gb-video.o:     $(gb)/video/video.cpp $(call rwildcard,$(gb)/video/)

bsnes/gb/apu/apu.cpp

@@ -1,107 +0,0 @@
-#include <gb/gb.hpp>
-
-#define APU_CPP
-namespace GameBoy {
-
-#include "square1/square1.cpp"
-#include "square2/square2.cpp"
-#include "wave/wave.cpp"
-#include "noise/noise.cpp"
-#include "master/master.cpp"
-#include "serialization.cpp"
-APU apu;
-
-void APU::Main() {
-  apu.main();
-}
-
-void APU::main() {
-  while(true) {
-    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
-      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
-    }
-
-    if(sequencer_base == 0) {  //512hz
-      if(sequencer_step == 0 || sequencer_step == 2 || sequencer_step == 4 || sequencer_step == 6) {  //256hz
-        square1.clock_length();
-        square2.clock_length();
-        wave.clock_length();
-        noise.clock_length();
-      }
-      if(sequencer_step == 2 || sequencer_step == 6) {  //128hz
-        square1.clock_sweep();
-      }
-      if(sequencer_step == 7) {  //64hz
-        square1.clock_envelope();
-        square2.clock_envelope();
-        noise.clock_envelope();
-      }
-      sequencer_step++;
-    }
-    sequencer_base++;
-
-    square1.run();
-    square2.run();
-    wave.run();
-    noise.run();
-    master.run();
-
-    interface->audioSample(master.left, master.right);
-
-    clock += cpu.frequency;
-    if(clock >= 0 && scheduler.sync != Scheduler::SynchronizeMode::All) co_switch(scheduler.active_thread = cpu.thread);
-  }
-}
-
-void APU::power() {
-  create(Main, 4 * 1024 * 1024);
-  for(unsigned n = 0xff10; n <= 0xff3f; n++) bus.mmio[n] = this;
-
-  for(auto &n : mmio_data) n = 0x00;
-  sequencer_base = 0;
-  sequencer_step = 0;
-
-  square1.power();
-  square2.power();
-  wave.power();
-  noise.power();
-  master.power();
-}
-
-uint8 APU::mmio_read(uint16 addr) {
-  static const uint8 table[48] = {
-    0x80, 0x3f, 0x00, 0xff, 0xbf,                          //square1
-    0xff, 0x3f, 0x00, 0xff, 0xbf,                          //square2
-    0x7f, 0xff, 0x9f, 0xff, 0xbf,                          //wave
-    0xff, 0xff, 0x00, 0x00, 0xbf,                          //noise
-    0x00, 0x00, 0x70,                                      //master
-    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,  //unmapped
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,        //wave pattern
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,        //wave pattern
-  };
-
-  if(addr == 0xff26) {
-    uint8 data = master.enable << 7;
-    if(square1.enable) data |= 0x01;
-    if(square2.enable) data |= 0x02;
-    if(   wave.enable) data |= 0x04;
-    if(  noise.enable) data |= 0x08;
-    return data | table[addr - 0xff10];
-  }
-
-  if(addr >= 0xff10 && addr <= 0xff3f) return mmio_data[addr - 0xff10] | table[addr - 0xff10];
-  return 0xff;
-}
-
-void APU::mmio_write(uint16 addr, uint8 data) {
-  if(addr >= 0xff10 && addr <= 0xff3f) mmio_data[addr - 0xff10] = data;
-
-  if(addr >= 0xff10 && addr <= 0xff14) return square1.write        (addr - 0xff10, data);
-  if(addr >= 0xff15 && addr <= 0xff19) return square2.write        (addr - 0xff15, data);
-  if(addr >= 0xff1a && addr <= 0xff1e) return    wave.write        (addr - 0xff1a, data);
-  if(addr >= 0xff1f && addr <= 0xff23) return   noise.write        (addr - 0xff1f, data);
-  if(addr >= 0xff24 && addr <= 0xff26) return  master.write        (addr - 0xff24, data);
-  if(addr >= 0xff30 && addr <= 0xff3f) return    wave.write_pattern(addr - 0xff30, data);
-}
-
-}

bsnes/gb/apu/apu.hpp

@@ -1,28 +0,0 @@
-struct APU : Thread, MMIO {
-  #include "square1/square1.hpp"
-  #include "square2/square2.hpp"
-  #include "wave/wave.hpp"
-  #include "noise/noise.hpp"
-  #include "master/master.hpp"
-
-  uint8 mmio_data[48];
-  uint13 sequencer_base;
-  uint3 sequencer_step;
-
-  Square1 square1;
-  Square2 square2;
-  Wave wave;
-  Noise noise;
-  Master master;
-
-  static void Main();
-  void main();
-  void power();
-
-  uint8 mmio_read(uint16 addr);
-  void mmio_write(uint16 addr, uint8 data);
-
-  void serialize(serializer&);
-};
-
-extern APU apu;

bsnes/gb/apu/master/master.cpp

@@ -1,101 +0,0 @@
-#ifdef APU_CPP
-
-void APU::Master::run() {
-  if(enable == false) {
-    center = 0;
-    left   = 0;
-    right  = 0;
-    return;
-  }
-
-  signed sample = 0;
-  sample += apu.square1.output;
-  sample += apu.square2.output;
-  sample +=    apu.wave.output;
-  sample +=   apu.noise.output;
-  center = (sample * 512) - 16384;
-
-  sample = 0;
-  if(channel1_left_enable) sample += apu.square1.output;
-  if(channel2_left_enable) sample += apu.square2.output;
-  if(channel3_left_enable) sample +=    apu.wave.output;
-  if(channel4_left_enable) sample +=   apu.noise.output;
-  sample = (sample * 512) - 16384;
-  sample = (sample * (left_volume  + 1)) / 8;
-  left  = sample;
-
-  sample = 0;
-  if(channel1_right_enable) sample += apu.square1.output;
-  if(channel2_right_enable) sample += apu.square2.output;
-  if(channel3_right_enable) sample +=    apu.wave.output;
-  if(channel4_right_enable) sample +=   apu.noise.output;
-  sample = (sample * 512) - 16384;
-  sample = (sample * (right_volume + 1)) / 8;
-  right = sample;
-}
-
-void APU::Master::write(unsigned r, uint8 data) {
-  if(r == 0) {  //$ff24  NR50
-    left_in_enable  = data & 0x80;
-    left_volume     = (data >> 4) & 7;
-    right_in_enable = data & 0x08;
-    right_volume    = (data >> 0) & 7;
-  }
-
-  if(r == 1) {  //$ff25  NR51
-    channel4_left_enable  = data & 0x80;
-    channel3_left_enable  = data & 0x40;
-    channel2_left_enable  = data & 0x20;
-    channel1_left_enable  = data & 0x10;
-    channel4_right_enable = data & 0x08;
-    channel3_right_enable = data & 0x04;
-    channel2_right_enable = data & 0x02;
-    channel1_right_enable = data & 0x01;
-  }
-
-  if(r == 2) {  //$ff26  NR52
-    enable = data & 0x80;
-  }
-}
-
-void APU::Master::power() {
-  left_in_enable = 0;
-  left_volume = 0;
-  right_in_enable = 0;
-  right_volume = 0;
-  channel4_left_enable  = 0;
-  channel3_left_enable  = 0;
-  channel2_left_enable  = 0;
-  channel1_left_enable  = 0;
-  channel4_right_enable = 0;
-  channel3_right_enable = 0;
-  channel2_right_enable = 0;
-  channel1_right_enable = 0;
-  enable = 0;
-
-  center = 0;
-  left   = 0;
-  right  = 0;
-}
-
-void APU::Master::serialize(serializer &s) {
-  s.integer(left_in_enable);
-  s.integer(left_volume);
-  s.integer(right_in_enable);
-  s.integer(right_volume);
-  s.integer(channel4_left_enable);
-  s.integer(channel3_left_enable);
-  s.integer(channel2_left_enable);
-  s.integer(channel1_left_enable);
-  s.integer(channel4_right_enable);
-  s.integer(channel3_right_enable);
-  s.integer(channel2_right_enable);
-  s.integer(channel1_right_enable);
-  s.integer(enable);
-
-  s.integer(center);
-  s.integer(left);
-  s.integer(right);
-}
-
-#endif

bsnes/gb/apu/master/master.hpp

@@ -1,24 +0,0 @@
-struct Master {
-  bool left_in_enable;
-  uint3 left_volume;
-  bool right_in_enable;
-  uint3 right_volume;
-  bool channel4_left_enable;
-  bool channel3_left_enable;
-  bool channel2_left_enable;
-  bool channel1_left_enable;
-  bool channel4_right_enable;
-  bool channel3_right_enable;
-  bool channel2_right_enable;
-  bool channel1_right_enable;
-  bool enable;
-
-  int16 center;
-  int16 left;
-  int16 right;
-
-  void run();
-  void write(unsigned r, uint8 data);
-  void power();
-  void serialize(serializer&);
-};

bsnes/gb/apu/noise/noise.cpp

@@ -1,112 +0,0 @@
-#ifdef APU_CPP
-
-bool APU::Noise::dac_enable() {
-  return (envelope_volume || envelope_direction);
-}
-
-void APU::Noise::run() {
-  if(period && --period == 0) {
-    period = divisor << frequency;
-    if(frequency < 14) {
-      bool bit = (lfsr ^ (lfsr >> 1)) & 1;
-      lfsr = (lfsr >> 1) ^ (bit << (narrow_lfsr ? 6 : 14));
-    }
-  }
-
-  uint4 sample = (lfsr & 1) ? (uint4)0 : volume;
-  if(enable == false) sample = 0;
-
-  output = sample;
-}
-
-void APU::Noise::clock_length() {
-//if(counter && length) {
-//  if(--length == 0) enable = false;
-//}
-  if(enable && counter) {
-    if(++length == 0) enable = false;
-  }
-}
-
-void APU::Noise::clock_envelope() {
-  if(enable && envelope_frequency && --envelope_period == 0) {
-    envelope_period = envelope_frequency;
-    if(envelope_direction == 0 && volume >  0) volume--;
-    if(envelope_direction == 1 && volume < 15) volume++;
-  }
-}
-
-void APU::Noise::write(unsigned r, uint8 data) {
-  if(r == 1) {  //$ff20  NR41
-  //length = 64 - (data & 0x3f);
-    length = data & 0x3f;
-  }
-
-  if(r == 2) {  //$ff21  NR42
-    envelope_volume = data >> 4;
-    envelope_direction = data & 0x08;
-    envelope_frequency = data & 0x07;
-    if(dac_enable() == false) enable = false;
-  }
-
-  if(r == 3) {  //$ff22  NR43
-    frequency = data >> 4;
-    narrow_lfsr = data & 0x08;
-    divisor = (data & 0x07) << 4;
-    if(divisor == 0) divisor = 8;
-    period = divisor << frequency;
-  }
-
-  if(r == 4) {  //$ff34  NR44
-    bool initialize = data & 0x80;
-    counter = data & 0x40;
-
-    if(initialize) {
-      enable = dac_enable();
-      lfsr = ~0U;
-      envelope_period = envelope_frequency;
-      volume = envelope_volume;
-    //if(length == 0) length = 64;
-    }
-  }
-}
-
-void APU::Noise::power() {
-  enable = 0;
-
-  envelope_volume = 0;
-  envelope_direction = 0;
-  envelope_frequency = 0;
-  frequency = 0;
-  narrow_lfsr = 0;
-  divisor = 0;
-  counter = 0;
-
-  output = 0;
-  length = 0;
-  envelope_period = 0;
-  volume = 0;
-  period = 0;
-  lfsr = 0;
-}
-
-void APU::Noise::serialize(serializer &s) {
-  s.integer(enable);
-
-  s.integer(envelope_volume);
-  s.integer(envelope_direction);
-  s.integer(envelope_frequency);
-  s.integer(frequency);
-  s.integer(narrow_lfsr);
-  s.integer(divisor);
-  s.integer(counter);
-
-  s.integer(output);
-  s.integer(length);
-  s.integer(envelope_period);
-  s.integer(volume);
-  s.integer(period);
-  s.integer(lfsr);
-}
-
-#endif

bsnes/gb/apu/noise/noise.hpp

@@ -1,27 +0,0 @@
-struct Noise {
-  bool enable;
-
-  uint4 envelope_volume;
-  bool envelope_direction;
-  uint3 envelope_frequency;
-  uint4 frequency;
-  bool narrow_lfsr;
-  unsigned divisor;
-  bool counter;
-
-  int16 output;
-  uint6 length;
-  uint3 envelope_period;
-  uint4 volume;
-  unsigned period;
-  uint15 lfsr;
-
-  bool dac_enable();
-
-  void run();
-  void clock_length();
-  void clock_envelope();
-  void write(unsigned r, uint8 data);
-  void power();
-  void serialize(serializer&);
-};

bsnes/gb/apu/serialization.cpp

@@ -1,17 +0,0 @@
-#ifdef APU_CPP
-
-void APU::serialize(serializer &s) {
-  Thread::serialize(s);
-
-  s.array(mmio_data);
-  s.integer(sequencer_base);
-  s.integer(sequencer_step);
-
-  square1.serialize(s);
-  square2.serialize(s);
-  wave.serialize(s);
-  noise.serialize(s);
-  master.serialize(s);
-}
-
-#endif

bsnes/gb/apu/square1/square1.cpp

@@ -1,164 +0,0 @@
-#ifdef APU_CPP
-
-bool APU::Square1::dac_enable() {
-  return (envelope_volume || envelope_direction);
-}
-
-void APU::Square1::run() {
-  if(period && --period == 0) {
-    period = 4 * (2048 - frequency);
-    phase++;
-    switch(duty) {
-      case 0: duty_output = (phase == 6); break;  //______-_
-      case 1: duty_output = (phase >= 6); break;  //______--
-      case 2: duty_output = (phase >= 4); break;  //____----
-      case 3: duty_output = (phase <= 5); break;  //------__
-    }
-  }
-
-  uint4 sample = (duty_output ? volume : (uint4)0);
-  if(enable == false) sample = 0;
-
-  output = sample;
-}
-
-void APU::Square1::sweep(bool update) {
-  if(sweep_enable == false) return;
-
-  sweep_negate = sweep_direction;
-  unsigned delta = frequency_shadow >> sweep_shift;
-  signed freq = frequency_shadow + (sweep_negate ? -delta : delta);
-
-  if(freq > 2047) {
-    enable = false;
-  } else if(sweep_shift && update) {
-    frequency_shadow = freq;
-    frequency = freq & 2047;
-    period = 4 * (2048 - frequency);
-  }
-}
-
-void APU::Square1::clock_length() {
-//if(counter && length) {
-//  if(--length == 0) enable = false;
-//}
-
-  if(counter && enable) {
-    if(++length == 0) enable = false;
-  }
-}
-
-void APU::Square1::clock_sweep() {
-  if(enable && sweep_frequency && --sweep_period == 0) {
-    sweep_period = sweep_frequency;
-    sweep(1);
-    sweep(0);
-  }
-}
-
-void APU::Square1::clock_envelope() {
-  if(enable && envelope_frequency && --envelope_period == 0) {
-    envelope_period = envelope_frequency;
-    if(envelope_direction == 0 && volume >  0) volume--;
-    if(envelope_direction == 1 && volume < 15) volume++;
-  }
-}
-
-void APU::Square1::write(unsigned r, uint8 data) {
-  if(r == 0) {  //$ff10  NR10
-    if(sweep_negate && sweep_direction && !(data & 0x08)) enable = false;
-    sweep_frequency = (data >> 4) & 7;
-    sweep_direction = data & 0x08;
-    sweep_shift = data & 0x07;
-  }
-
-  if(r == 1) {  //$ff11  NR11
-    duty = data >> 6;
-  //length = 64 - (data & 0x3f);
-    length = data & 0x3f;
-  }
-
-  if(r == 2) {  //$ff12  NR12
-    envelope_volume = data >> 4;
-    envelope_direction = data & 0x08;
-    envelope_frequency = data & 0x07;
-    if(dac_enable() == false) enable = false;
-  }
-
-  if(r == 3) {  //$ff13  NR13
-    frequency = (frequency & 0x0700) | data;
-  }
-
-  if(r == 4) {  //$ff14  NR14
-    bool initialize = data & 0x80;
-    counter = data & 0x40;
-    frequency = ((data & 7) << 8) | (frequency & 0x00ff);
-
-    if(initialize) {
-      enable = dac_enable();
-      period = 4 * (2048 - frequency);
-      envelope_period = envelope_frequency;
-      volume = envelope_volume;
-      frequency_shadow = frequency;
-      sweep_period = sweep_frequency;
-      sweep_enable = sweep_period || sweep_shift;
-      sweep_negate = false;
-      if(sweep_shift) sweep(0);
-    //if(length == 0) length = 64;
-    }
-  }
-}
-
-void APU::Square1::power() {
-  enable = 0;
-
-  sweep_frequency = 0;
-  sweep_direction = 0;
-  sweep_shift = 0;
-  sweep_negate = 0;
-  duty = 0;
-  length = 0;
-  envelope_volume = 0;
-  envelope_direction = 0;
-  envelope_frequency = 0;
-  frequency = 0;
-  counter = 0;
-
-  output = 0;
-  duty_output = 0;
-  phase = 0;
-  period = 0;
-  envelope_period = 0;
-  sweep_period = 0;
-  frequency_shadow = 0;
-  sweep_enable = 0;
-  volume = 0;
-}
-
-void APU::Square1::serialize(serializer &s) {
-  s.integer(enable);
-
-  s.integer(sweep_frequency);
-  s.integer(sweep_direction);
-  s.integer(sweep_shift);
-  s.integer(sweep_negate);
-  s.integer(duty);
-  s.integer(length);
-  s.integer(envelope_volume);
-  s.integer(envelope_direction);
-  s.integer(envelope_frequency);
-  s.integer(frequency);
-  s.integer(counter);
-
-  s.integer(output);
-  s.integer(duty_output);
-  s.integer(phase);
-  s.integer(period);
-  s.integer(envelope_period);
-  s.integer(sweep_period);
-  s.integer(frequency_shadow);
-  s.integer(sweep_enable);
-  s.integer(volume);
-}
-
-#endif

bsnes/gb/apu/square1/square1.hpp

@@ -1,36 +0,0 @@
-struct Square1 {
-  bool enable;
-
-  uint3 sweep_frequency;
-  bool sweep_direction;
-  uint3 sweep_shift;
-  bool sweep_negate;
-  uint2 duty;
-  uint6 length;
-  uint4 envelope_volume;
-  bool envelope_direction;
-  uint3 envelope_frequency;
-  uint11 frequency;
-  bool counter;
-
-  int16 output;
-  bool duty_output;
-  uint3 phase;
-  unsigned period;
-  uint3 envelope_period;
-  uint3 sweep_period;
-  signed frequency_shadow;
-  bool sweep_enable;
-  uint4 volume;
-
-  bool dac_enable();
-
-  void run();
-  void sweep(bool update);
-  void clock_length();
-  void clock_sweep();
-  void clock_envelope();
-  void write(unsigned r, uint8 data);
-  void power();
-  void serialize(serializer&);
-};

bsnes/gb/apu/square2/square2.cpp

@@ -1,114 +0,0 @@
-#ifdef APU_CPP
-
-bool APU::Square2::dac_enable() {
-  return (envelope_volume || envelope_direction);
-}
-
-void APU::Square2::run() {
-  if(period && --period == 0) {
-    period = 4 * (2048 - frequency);
-    phase++;
-    switch(duty) {
-      case 0: duty_output = (phase == 6); break;  //______-_
-      case 1: duty_output = (phase >= 6); break;  //______--
-      case 2: duty_output = (phase >= 4); break;  //____----
-      case 3: duty_output = (phase <= 5); break;  //------__
-    }
-  }
-
-  uint4 sample = (duty_output ? volume : (uint4)0);
-  if(enable == false) sample = 0;
-
-  output = sample;
-}
-
-void APU::Square2::clock_length() {
-//if(counter && length) {
-//  if(--length == 0) enable = false;
-//}
-
-  if(counter && enable) {
-    if(++length == 0) enable = false;
-  }
-}
-
-void APU::Square2::clock_envelope() {
-  if(enable && envelope_frequency && --envelope_period == 0) {
-    envelope_period = envelope_frequency;
-    if(envelope_direction == 0 && volume >  0) volume--;
-    if(envelope_direction == 1 && volume < 15) volume++;
-  }
-}
-
-void APU::Square2::write(unsigned r, uint8 data) {
-  if(r == 1) {  //$ff16  NR21
-    duty = data >> 6;
-  //length = 64 - (data & 0x3f);
-    length = (data & 0x3f);
-  }
-
-  if(r == 2) {  //$ff17  NR22
-    envelope_volume = data >> 4;
-    envelope_direction = data & 0x08;
-    envelope_frequency = data & 0x07;
-    if(dac_enable() == false) enable = false;
-  }
-
-  if(r == 3) {  //$ff18  NR23
-    frequency = (frequency & 0x0700) | data;
-  }
-
-  if(r == 4) {  //$ff19  NR24
-    bool initialize = data & 0x80;
-    counter = data & 0x40;
-    frequency = ((data & 7) << 8) | (frequency & 0x00ff);
-
-    if(initialize) {
-      enable = dac_enable();
-      period = 4 * (2048 - frequency);
-      envelope_period = envelope_frequency;
-      volume = envelope_volume;
-    //if(length == 0) length = 64;
-    }
-  }
-}
-
-void APU::Square2::power() {
-  enable = 0;
-
-  duty = 0;
-  length = 0;
-  envelope_volume = 0;
-  envelope_direction = 0;
-  envelope_frequency = 0;
-  frequency = 0;
-  counter = 0;
-
-  output = 0;
-  duty_output = 0;
-  phase = 0;
-  period = 0;
-  envelope_period = 0;
-  volume = 0;
-}
-
-void APU::Square2::serialize(serializer &s) {
-  s.integer(enable);
-
-  s.integer(duty);
-  s.integer(length);
-  s.integer(envelope_volume);
-  s.integer(envelope_direction);
-  s.integer(envelope_frequency);
-  s.integer(frequency);
-  s.integer(counter);
-
-  s.integer(output);
-  s.integer(duty_output);
-  s.integer(phase);
-  s.integer(period);
-  s.integer(envelope_period);
-  s.integer(volume);
-}
-
-#endif

bsnes/gb/apu/square2/square2.hpp

@@ -1,27 +0,0 @@
-struct Square2 {
-  bool enable;
-
-  uint2 duty;
-  uint6 length;
-  uint4 envelope_volume;
-  bool envelope_direction;
-  uint3 envelope_frequency;
-  uint11 frequency;
-  bool counter;
-
-  int16 output;
-  bool duty_output;
-  uint3 phase;
-  unsigned period;
-  uint3 envelope_period;
-  uint4 volume;
-
-  bool dac_enable();
-
-  void run();
-  void clock_length();
-  void clock_envelope();
-  void write(unsigned r, uint8 data);
-  void power();
-  void serialize(serializer&);
-};