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beetle-gba-libretro/libretro.cpp

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Initial commit.
2012-06-03 15:48:14 +00:00
#include "mednafen/mednafen.h"
Cleanup mednafen.cpp - leave only what we need
2012-11-29 22:21:44 +00:00
#include "mednafen/mempatcher.h"
Initial commit.
2012-06-03 15:48:14 +00:00
#include "mednafen/git.h"
#include "mednafen/general.h"
Update MD5 checksum correctly.
2013-04-27 14:40:24 +00:00
#include "mednafen/md5.h"
Get rid of everything Minifen will handle for us
2012-11-16 14:12:25 +00:00
#ifdef NEED_DEINTERLACER
#include "mednafen/video/Deinterlacer.h"
#endif
Initial commit.
2012-06-03 15:48:14 +00:00
#include "libretro.h"
static MDFNGI *game;
Reimplement cputest.c for libretro
2014-04-21 22:25:50 +00:00
struct retro_perf_callback perf_cb;
retro_get_cpu_features_t perf_get_cpu_features_cb = NULL;
Add logging
2014-04-20 14:32:46 +00:00
retro_log_printf_t log_cb;
Initial commit.
2012-06-03 15:48:14 +00:00
static retro_video_refresh_t video_cb;
static retro_audio_sample_t audio_cb;
static retro_audio_sample_batch_t audio_batch_cb;
static retro_environment_t environ_cb;
static retro_input_poll_t input_poll_cb;
static retro_input_state_t input_state_cb;
Add rumble support. Use dualshock instead of dualanalog. Hopefully won't break. :)
2013-09-26 11:42:08 +00:00
static retro_rumble_interface rumble;
Implement optional overscan cropping for PSX.
2013-02-25 19:39:39 +00:00
static bool overscan;
Get rid of everything Minifen will handle for us
2012-11-16 14:12:25 +00:00
static double last_sound_rate;
static MDFN_PixelFormat last_pixel_format;
Initial commit.
2012-06-03 15:48:14 +00:00
static MDFN_Surface *surf;
Avoid using configs. Requires system dir.
2012-06-15 23:00:17 +00:00
static bool failed_init;
Initial commit.
2012-06-03 15:48:14 +00:00
- fixed previous commit so it doesn't modify anything on settings.cpp nor settings.h - now you can change controllers on the fly
2014-01-20 23:19:08 +00:00
static void hookup_ports(bool force);
static bool initial_ports_hookup = false;
Updates to 0.9.25.
2012-10-13 13:31:49 +00:00
std::string retro_base_directory;
std::string retro_base_name;
Fix: forgot to define retro_save_directory
2014-02-07 07:16:01 +00:00
std::string retro_save_directory;
Updates to 0.9.25.
2012-10-13 13:31:49 +00:00
Integrate GBA.cpp into libretro.cpp
2014-06-22 21:46:54 +00:00
// VisualBoyAdvance - Nintendo Gameboy/GameboyAdvance (TM) emulator.
// Copyright (C) 1999-2003 Forgotten
// Copyright (C) 2005 Forgotten and the VBA development team
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or(at your option)
// any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software Foundation,
// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#include "mednafen/gba/GBA.h"
#include "mednafen/general.h"
#include "mednafen/file.h"
#include "mednafen/state.h"
#include "mednafen/mempatcher.h"
#include "mednafen/md5.h"
#include "mednafen/gba/GBAinline.h"
#include "mednafen/gba/Globals.h"
#include "mednafen/gba/Gfx.h"
#include "mednafen/gba/eeprom.h"
#include "mednafen/gba/flash.h"
#include "mednafen/gba/Sound.h"
#include "mednafen/gba/sram.h"
#include "mednafen/gba/bios.h"
#include "mednafen/gba/Port.h"
#include "mednafen/gba/arm.h"
#include "mednafen/gba/thumb.h"
#include <stdarg.h>
#include <string.h>
#include <errno.h>
#include "mednafen/FileStream.h"
#include "scrc32.h"
static bool CPUInit(const std::string bios_fn) MDFN_COLD;
static void CPUReset(void) MDFN_COLD;
static void CPUUpdateRender(void);
#define UPDATE_REG(address, value)\
{\
WRITE16LE(((uint16 *)&ioMem[address]),value);\
}\
#ifdef __GNUC__
#define _stricmp strcasecmp
#endif
RTC *GBA_RTC = NULL;
int SWITicks = 0;
int IRQTicks = 0;
int layerEnableDelay = 0;
bool busPrefetch = false;
bool busPrefetchEnable = false;
uint32 busPrefetchCount = 0;
int cpuDmaTicksToUpdate = 0;
int cpuDmaCount = 0;
bool cpuDmaHack = false;
uint32 cpuDmaLast = 0;
int dummyAddress = 0;
bool cpuBreakLoop = false;
int cpuNextEvent = 0;
static bool intState = false;
static bool stopState = false;
static bool holdState = false;
static int holdType = 0;
static bool FlashSizeSet; // Set to TRUE if explicitly set by the user
bool cpuSramEnabled;
bool cpuFlashEnabled;
bool cpuEEPROMEnabled;
bool cpuEEPROMSensorEnabled;
uint32 cpuPrefetch[2];
int cpuTotalTicks = 0;
static int lcdTicks;
uint8 timerOnOffDelay = 0;
GBATimer timers[4];
uint32 dmaSource[4] = {0};
uint32 dmaDest[4] = {0};
void (*renderLine)() = mode0RenderLine;
bool fxOn = false;
bool windowOn = false;
static const int TIMER_TICKS[4] =
{
0,
6,
8,
10
};
const uint32 objTilesAddress [3] = {0x010000, 0x014000, 0x014000};
const uint8 gamepakRamWaitState[4] = { 4, 3, 2, 8 };
const uint8 gamepakWaitState[4] = { 4, 3, 2, 8 };
const uint8 gamepakWaitState0[2] = { 2, 1 };
const uint8 gamepakWaitState1[2] = { 4, 1 };
const uint8 gamepakWaitState2[2] = { 8, 1 };
const bool isInRom [16]=
{ false, false, false, false, false, false, false, false,
true, true, true, true, true, true, false, false };
uint8 memoryWait[16] =
{ 0, 0, 2, 0, 0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 0 };
uint8 memoryWait32[16] =
{ 0, 0, 5, 0, 0, 1, 1, 0, 7, 7, 9, 9, 13, 13, 4, 0 };
uint8 memoryWaitSeq[16] =
{ 0, 0, 2, 0, 0, 0, 0, 0, 2, 2, 4, 4, 8, 8, 4, 0 };
uint8 memoryWaitSeq32[16] =
{ 0, 0, 5, 0, 0, 1, 1, 0, 5, 5, 9, 9, 17, 17, 4, 0 };
// The videoMemoryWait constants are used to add some waitstates
// if the opcode access video memory data outside of vblank/hblank
// It seems to happen on only one ticks for each pixel.
// Not used for now (too problematic with current code).
//const uint8 videoMemoryWait[16] =
// {0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0};
uint8 biosProtected[4];
static const uint32 myROM[] =
{
(MSVC 2010) Fix MSVC 2010 PC build
2014-07-11 18:54:47 +00:00
#include "mednafen/gba/myrom.h"
Integrate GBA.cpp into libretro.cpp
2014-06-22 21:46:54 +00:00
};
union SysCM
{
uint32 v32[65536];
uint16 v16[65536];
};
static SysCM* systemColorMap = NULL;
static uint8 *CustomColorMap = NULL; // 32768 * 3
static int romSize = 0x2000000;
static INLINE int CPUUpdateTicks()
{
int cpuLoopTicks = lcdTicks;
if(timers[0].On && (timers[0].Ticks < cpuLoopTicks)) {
cpuLoopTicks = timers[0].Ticks;
}
if(timers[1].On && !(timers[1].CNT & 4) && (timers[1].Ticks < cpuLoopTicks)) {
cpuLoopTicks = timers[1].Ticks;
}
if(timers[2].On && !(timers[2].CNT & 4) && (timers[2].Ticks < cpuLoopTicks)) {
cpuLoopTicks = timers[2].Ticks;
}
if(timers[3].On && !(timers[3].CNT & 4) && (timers[3].Ticks < cpuLoopTicks)) {
cpuLoopTicks = timers[3].Ticks;
}
if (SWITicks) {
if (SWITicks < cpuLoopTicks)
cpuLoopTicks = SWITicks;
}
if (IRQTicks) {
if (IRQTicks < cpuLoopTicks)
cpuLoopTicks = IRQTicks;
}
return cpuLoopTicks;
}
void CPUUpdateWindow0()
{
int x00 = WIN0H>>8;
int x01 = WIN0H & 255;
if(x00 <= x01) {
for(int i = 0; i < 240; i++) {
gfxInWin0[i] = (i >= x00 && i < x01);
}
} else {
for(int i = 0; i < 240; i++) {
gfxInWin0[i] = (i >= x00 || i < x01);
}
}
}
void CPUUpdateWindow1()
{
int x00 = WIN1H>>8;
int x01 = WIN1H & 255;
if(x00 <= x01) {
for(int i = 0; i < 240; i++) {
gfxInWin1[i] = (i >= x00 && i < x01);
}
} else {
for(int i = 0; i < 240; i++) {
gfxInWin1[i] = (i >= x00 || i < x01);
}
}
}
#define CLEAR_ARRAY(a) \
{\
uint32 *array = (a);\
for(int i = 0; i < 240; i++) {\
*array++ = 0x80000000;\
}\
}\
void CPUUpdateRenderBuffers(bool force)
{
if(!(layerEnable & 0x0100) || force) {
CLEAR_ARRAY(line0);
}
if(!(layerEnable & 0x0200) || force) {
CLEAR_ARRAY(line1);
}
if(!(layerEnable & 0x0400) || force) {
CLEAR_ARRAY(line2);
}
if(!(layerEnable & 0x0800) || force) {
CLEAR_ARRAY(line3);
}
}
extern SFORMAT eepromSaveData[];
static uint16 padbufblah;
static SFORMAT Joy_StateRegs[] =
{
SFVAR( padbufblah),
SFEND
};
Cleanups
2016-08-09 17:34:33 +00:00
int StateAction(StateMem *sm, int load, int data_only)
Integrate GBA.cpp into libretro.cpp
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{
int ret = 1;
SFORMAT StateRegs[] =
{
// Type-cast to uint32* so the macro will work(they really are 32-bit elements, just wrapped up in a union)
SFARRAY32N((uint32 *)reg, sizeof(reg) / sizeof(reg_pair), "reg"),
SFVAR(busPrefetch),
SFVAR(busPrefetchEnable),
SFVAR(busPrefetchCount),
SFVAR(cpuDmaHack),
SFVAR(cpuDmaLast),
SFVAR(cpuDmaTicksToUpdate),
SFVAR(cpuDmaCount),
SFVAR(stopState),
SFVAR(intState),
SFVAR(DISPCNT),
SFVAR(DISPSTAT),
SFVAR(VCOUNT),
SFVAR(BG0CNT),
SFVAR(BG1CNT),
SFVAR(BG2CNT),
SFVAR(BG3CNT),
SFARRAY16(BGHOFS, 4),
SFARRAY16(BGVOFS, 4),
SFVAR(BG2PA),
SFVAR(BG2PB),
SFVAR(BG2PC),
SFVAR(BG2PD),
SFVAR(BG2X_L),
SFVAR(BG2X_H),
SFVAR(BG2Y_L),
SFVAR(BG2Y_H),
SFVAR(BG3PA),
SFVAR(BG3PB),
SFVAR(BG3PC),
SFVAR(BG3PD),
SFVAR(BG3X_L),
SFVAR(BG3X_H),
SFVAR(BG3Y_L),
SFVAR(BG3Y_H),
SFVAR(WIN0H),
SFVAR(WIN1H),
SFVAR(WIN0V),
SFVAR(WIN1V),
SFVAR(WININ),
SFVAR(WINOUT),
SFVAR(MOSAIC),
SFVAR(BLDMOD),
SFVAR(COLEV),
SFVAR(COLY),
SFARRAY16(DMSAD_L, 4),
SFARRAY16(DMSAD_H, 4),
SFARRAY16(DMDAD_L, 4),
SFARRAY16(DMDAD_H, 4),
SFARRAY16(DMCNT_L, 4),
SFARRAY16(DMCNT_H, 4),
SFVAR(timers[0].D),
SFVAR(timers[0].CNT),
SFVAR(timers[1].D),
SFVAR(timers[1].CNT),
SFVAR(timers[2].D),
SFVAR(timers[2].CNT),
SFVAR(timers[3].D),
SFVAR(timers[3].CNT),
SFVAR(P1),
SFVAR(IE),
SFVAR(IF),
SFVAR(IME),
SFVAR(holdState),
SFVAR(holdType),
SFVAR(lcdTicks),
SFVAR(timers[0].On),
SFVAR(timers[0].Ticks),
SFVAR(timers[0].Reload),
SFVAR(timers[0].ClockReload),
SFVAR(timers[1].On),
SFVAR(timers[1].Ticks),
SFVAR(timers[1].Reload),
SFVAR(timers[1].ClockReload),
SFVAR(timers[2].On),
SFVAR(timers[2].Ticks),
SFVAR(timers[2].Reload),
SFVAR(timers[2].ClockReload),
SFVAR(timers[3].On),
SFVAR(timers[3].Ticks),
SFVAR(timers[3].Reload),
SFVAR(timers[3].ClockReload),
SFARRAY32(dmaSource, 4),
SFARRAY32(dmaDest, 4),
SFVAR(fxOn),
SFVAR(windowOn),
SFVAR(N_FLAG),
SFVAR(C_FLAG),
SFVAR(Z_FLAG),
SFVAR(V_FLAG),
SFVAR(armState),
SFVAR(armIrqEnable),
SFVAR(armNextPC),
SFVAR(armMode),
SFVAR(cpuSramEnabled),
SFVAR(cpuFlashEnabled),
SFVAR(cpuEEPROMEnabled),
SFVAR(cpuEEPROMSensorEnabled),
SFEND
};
ret &= MDFNSS_StateAction(sm, load, data_only, StateRegs, "MAIN");
SFORMAT RAMState[] =
{
SFARRAY(internalRAM, 0x8000),
SFARRAY(paletteRAM, 0x400),
SFARRAY(workRAM, 0x40000),
SFARRAY(vram, 0x20000),
SFARRAY(oam, 0x400),
SFARRAY(ioMem, 0x400),
SFEND
};
ret &= MDFNSS_StateAction(sm, load, data_only, RAMState, "RAM");
if(cpuEEPROMEnabled)
ret &= MDFNSS_StateAction(sm, load, data_only, eepromSaveData, "EEPR");
ret &= GBA_Flash_StateAction(sm, load, data_only);
if(GBA_RTC)
ret &= GBA_RTC->StateAction(sm, load, data_only);
ret &= MDFNSS_StateAction(sm, load, data_only, Joy_StateRegs, "JOY");
ret &= MDFNGBASOUND_StateAction(sm, load, data_only);
if(load)
{
// set pointers!
layerEnable = layerSettings & DISPCNT;
CPUUpdateRender();
CPUUpdateRenderBuffers(true);
CPUUpdateWindow0();
CPUUpdateWindow1();
if(armState) {
ARM_PREFETCH;
} else {
THUMB_PREFETCH;
}
CPUUpdateRegister(0x204, CPUReadHalfWordQuick(0x4000204));
}
return(ret);
}
static bool CPUWriteBatteryFile(const char *filename) MDFN_COLD;
static bool CPUWriteBatteryFile(const char *filename)
{
if(cpuSramEnabled || cpuFlashEnabled)
{
if(cpuSramEnabled)
{
if(!MDFN_DumpToFile(filename, 6, flashSaveMemory, 0x10000))
return(0);
}
else if(cpuFlashEnabled)
{
if(!MDFN_DumpToFile(filename, 6, flashSaveMemory, flashSize))
return(0);
}
return(TRUE);
}
return(FALSE);
}
static bool CPUReadBatteryFile(const char *filename) MDFN_COLD;
static bool CPUReadBatteryFile(const char *filename)
{
FILE *gp = gzopen(filename, "rb");
long size;
if(!gp)
return(FALSE);
size = 0;
while(gzgetc(gp) != EOF)
size++;
if(size == 512 || size == 0x2000) // Load the file as EEPROM for Mednafen < 0.8.2
{
gzclose(gp);
if(cpuEEPROMEnabled)
{
puts("note: Loading sav file as eeprom data");
GBA_EEPROM_LoadFile(filename);
}
return(FALSE);
}
gzseek(gp, 0, SEEK_SET);
if(size == 0x20000)
{
if(gzread(gp, flashSaveMemory, 0x20000) != 0x20000)
{
gzclose(gp);
return(FALSE);
}
if(!FlashSizeSet)
{
flashSetSize(0x20000);
FlashSizeSet = TRUE;
}
}
else
{
if(gzread(gp, flashSaveMemory, 0x10000) != 0x10000)
{
gzclose(gp);
return(FALSE);
}
if(!FlashSizeSet)
{
flashSetSize(0x10000);
FlashSizeSet = TRUE;
}
}
gzclose(gp);
return(TRUE);
}
static void CPUCleanUp(void) MDFN_COLD;
static void CPUCleanUp(void)
{
if(rom)
{
Cleanups
2015-07-24 13:34:06 +00:00
free(rom);
Integrate GBA.cpp into libretro.cpp
2014-06-22 21:46:54 +00:00
rom = NULL;
}
if(vram)
{
Cleanups
2015-07-24 13:34:06 +00:00
free(vram);
Integrate GBA.cpp into libretro.cpp
2014-06-22 21:46:54 +00:00
vram = NULL;
}
if(paletteRAM)
{
Cleanups
2015-07-24 13:34:06 +00:00
free(paletteRAM);
Integrate GBA.cpp into libretro.cpp
2014-06-22 21:46:54 +00:00
paletteRAM = NULL;
}
if(internalRAM)
{
Cleanups
2015-07-24 13:34:06 +00:00
free(internalRAM);
Integrate GBA.cpp into libretro.cpp
2014-06-22 21:46:54 +00:00
internalRAM = NULL;
}
if(workRAM)
{
Cleanups
2015-07-24 13:34:06 +00:00
free(workRAM);
Integrate GBA.cpp into libretro.cpp
2014-06-22 21:46:54 +00:00
workRAM = NULL;
}
if(bios)
{
Cleanups
2015-07-24 13:34:06 +00:00
free(bios);
Integrate GBA.cpp into libretro.cpp
2014-06-22 21:46:54 +00:00
bios = NULL;
}
if(pix)
{
Cleanups
2015-07-24 13:34:06 +00:00
free(pix);
Integrate GBA.cpp into libretro.cpp
2014-06-22 21:46:54 +00:00
pix = NULL;
}
if(oam)
{
Cleanups
2015-07-24 13:34:06 +00:00
free(oam);
Integrate GBA.cpp into libretro.cpp
2014-06-22 21:46:54 +00:00
oam = NULL;
}
if(ioMem)
{
Cleanups
2015-07-24 13:34:06 +00:00
free(ioMem);
Integrate GBA.cpp into libretro.cpp
2014-06-22 21:46:54 +00:00
ioMem = NULL;
}
if(systemColorMap)
{
Cleanups
2015-07-24 13:34:06 +00:00
free(systemColorMap);
Integrate GBA.cpp into libretro.cpp
2014-06-22 21:46:54 +00:00
systemColorMap = NULL;
}
GBA_Flash_Kill();
if(GBA_RTC)
{
delete GBA_RTC;
GBA_RTC = NULL;
}
}
static void CloseGame(void)
{
GBA_EEPROM_SaveFile(MDFN_MakeFName(MDFNMKF_SAV, 0, "eep").c_str());
CPUWriteBatteryFile(MDFN_MakeFName(MDFNMKF_SAV, 0, "sav").c_str());
// Call CPUCleanUp() to deallocate memory AFTER the backup memory is saved.
CPUCleanUp();
}
static bool LoadCPalette(const char *syspalname, uint8 **ptr, uint32 num_entries) MDFN_COLD;
static bool LoadCPalette(const char *syspalname, uint8 **ptr, uint32 num_entries)
{
std::string colormap_fn = MDFN_MakeFName(MDFNMKF_PALETTE, 0, syspalname).c_str();
MDFN_printf(_("Loading custom palette from \"%s\"...\n"), colormap_fn.c_str());
MDFN_indent(1);
*ptr = NULL;
try
{
FileStream fp(colormap_fn.c_str(), FileStream::MODE_READ);
Cleanups
2015-07-24 13:34:06 +00:00
if(!(*ptr = (uint8 *)malloc(num_entries * 3)))
Integrate GBA.cpp into libretro.cpp
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{
MDFN_indent(-1);
return(false);
}
fp.read(*ptr, num_entries * 3);
}
catch(MDFN_Error &e)
{
if(*ptr)
{
Cleanups
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free(*ptr);
Integrate GBA.cpp into libretro.cpp
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*ptr = NULL;
}
MDFN_printf(_("Error: %s\n"), e.what());
MDFN_indent(-1);
return(e.GetErrno() == ENOENT); // Return fatal error if it's an error other than the file not being found.
}
catch(std::exception &e)
{
if(*ptr)
{
Cleanups
2015-07-24 13:34:06 +00:00
free(*ptr);
Integrate GBA.cpp into libretro.cpp
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*ptr = NULL;
}
MDFN_printf(_("Error: %s\n"), e.what());
MDFN_indent(-1);
return(false);
}
MDFN_indent(-1);
return(true);
}
static void RedoColorMap(const MDFN_PixelFormat &format) MDFN_COLD;
static void RedoColorMap(const MDFN_PixelFormat &format)
{
for(int x = 0; x < 65536; x++)
{
int r, g, b;
if(CustomColorMap)
{
r = CustomColorMap[(x & 0x7FFF) * 3 + 0];
g = CustomColorMap[(x & 0x7FFF) * 3 + 1];
b = CustomColorMap[(x & 0x7FFF) * 3 + 2];
}
else
{
r = (x & 0x1F);
g = ((x & 0x3E0) >> 5);
b = ((x & 0x7C00) >> 10);
if(format.bpp == 16)
{
r = (r * 255 + 15) / 31;
g = (g * 255 + 15) / 31;
b = (b * 255 + 15) / 31;
}
else
{
r = (r << 3); // | (r >> 2);
g = (g << 3); // | (g >> 2);
b = (b << 3); // | (b >> 2);
}
}
if(format.bpp == 32)
systemColorMap->v32[x] = format.MakeColor(r, g, b);
else
systemColorMap->v16[x] = format.MakeColor(r, g, b);
}
#if 0
for(unsigned i = 0; i < 32; i++)
{
printf("%u %u\n", i, format.MakeColor(0, 0, (i * 255 + 15) / 31));
}
#endif
}
static bool TestMagic(const char *name, MDFNFILE *fp) MDFN_COLD;
static bool TestMagic(const char *name, MDFNFILE *fp)
{
if(!memcmp(GET_FDATA_PTR(fp), "PSF\x22", 4))
return(TRUE);
if(!strcasecmp(GET_FEXTS_PTR(fp), "gba") || !strcasecmp(GET_FEXTS_PTR(fp), "agb"))
return(TRUE);
if(GET_FSIZE_PTR(fp) >= 192 && !strcasecmp(GET_FEXTS_PTR(fp), "bin"))
{
if((GET_FDATA_PTR(fp)[0xb2] == 0x96 && GET_FDATA_PTR(fp)[0xb3] == 0x00) ||
(GET_FDATA_PTR(fp)[0] == 0x2E && GET_FDATA_PTR(fp)[3] == 0xEA))
return(TRUE);
}
return(FALSE);
}
static int Load(const char *name, MDFNFILE *fp) MDFN_COLD;
static int Load(const char *name, MDFNFILE *fp)
{
layerSettings = 0xFF00;
Cleanups
2015-07-24 13:34:06 +00:00
if(!(rom = (uint8 *)malloc(0x2000000)))
Integrate GBA.cpp into libretro.cpp
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return(0);
memset(rom, 0xFF, 0x2000000);
Cleanups
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if(!(workRAM = (uint8 *)calloc(1, 0x40000)))
Integrate GBA.cpp into libretro.cpp
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{
Cleanups
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free(rom);
Integrate GBA.cpp into libretro.cpp
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return(0);
}
{
uint32 size = GET_FSIZE_PTR(fp);
uint8 *whereToLoad;
if(cpuIsMultiBoot)
{
whereToLoad = workRAM;
if(size > 0x40000)
size = 0x40000;
}
else
{
whereToLoad = rom;
if(size > 0x2000000)
size = 0x2000000;
}
memcpy(whereToLoad, GET_FDATA_PTR(fp), size);
md5_context md5;
md5.starts();
md5.update(GET_FDATA_PTR(fp), size);
md5.finish(MDFNGameInfo->MD5);
MDFN_printf(_("ROM: %dKiB\n"), (size + 1023) / 1024);
MDFN_printf(_("ROM CRC32: 0x%08x\n"), (unsigned int)crc32(0, GET_FDATA_PTR(fp), size));
MDFN_printf(_("ROM MD5: 0x%s\n"), md5_context::asciistr(MDFNGameInfo->MD5, 0).c_str());
uint16 *temp = (uint16 *)(rom+((size+1)&~1));
int i;
for(i = (size+1)&~1; i < 0x2000000; i+=2)
{
WRITE16LE(temp, (i >> 1) & 0xFFFF);
temp++;
}
}
Cleanups
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if(!(bios = (uint8 *)calloc(1, 0x4000)))
Integrate GBA.cpp into libretro.cpp
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{
CPUCleanUp();
return 0;
}
Cleanups
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if(!(internalRAM = (uint8 *)calloc(1, 0x8000)))
Integrate GBA.cpp into libretro.cpp
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{
CPUCleanUp();
return 0;
}
Cleanups
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if(!(paletteRAM = (uint8 *)calloc(1, 0x400)))
Integrate GBA.cpp into libretro.cpp
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{
CPUCleanUp();
return 0;
}
Cleanups
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if(!(vram = (uint8 *)calloc(1, 0x20000)))
Integrate GBA.cpp into libretro.cpp
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{
CPUCleanUp();
return 0;
}
Cleanups
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if(!(oam = (uint8 *)calloc(1, 0x400)))
Integrate GBA.cpp into libretro.cpp
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{
CPUCleanUp();
return 0;
}
Cleanups
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if(!(ioMem = (uint8 *)calloc(1, 0x400)))
Integrate GBA.cpp into libretro.cpp
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{
CPUCleanUp();
return 0;
}
Cleanups
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if(!(systemColorMap = (SysCM*)malloc(sizeof(SysCM))))
Integrate GBA.cpp into libretro.cpp
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{
CPUCleanUp();
return(0);
}
CPUUpdateRenderBuffers(true);
MDFNGameInfo->GameSetMD5Valid = FALSE;
MDFNGBASOUND_Init();
{
MDFNMP_Init(0x8000, (1 << 28) / 0x8000);
MDFNMP_AddRAM(0x40000, 0x2 << 24, workRAM);
MDFNMP_AddRAM(0x08000, 0x3 << 24, internalRAM);
}
if(!CPUInit(MDFN_GetSettingS("gba.bios")))
{
CPUCleanUp();
return(0);
}
CPUReset();
GBA_Flash_Init();
eepromInit();
{
// EEPROM might be loaded from within CPUReadBatteryFile for support for Mednafen < 0.8.2, so call before GBA_EEPROM_LoadFile(), which
// is more specific...kinda.
if(cpuSramEnabled || cpuFlashEnabled)
CPUReadBatteryFile(MDFN_MakeFName(MDFNMKF_SAV, 0, "sav").c_str());
if(cpuEEPROMEnabled)
GBA_EEPROM_LoadFile(MDFN_MakeFName(MDFNMKF_SAV, 0, "eep").c_str());
}
if(!LoadCPalette(NULL, &CustomColorMap, 32768))
{
CPUCleanUp();
return(0);
}
return(1);
}
void doMirroring (bool b)
{
uint32 mirroredRomSize = (((romSize)>>20) & 0x3F)<<20;
uint32 mirroredRomAddress = romSize;
if ((mirroredRomSize <=0x800000) && (b))
{
mirroredRomAddress = mirroredRomSize;
if (mirroredRomSize==0)
mirroredRomSize=0x100000;
while (mirroredRomAddress<0x01000000)
{
memcpy ((uint16 *)(rom+mirroredRomAddress), (uint16 *)(rom), mirroredRomSize);
mirroredRomAddress+=mirroredRomSize;
}
}
}
static void CPUUpdateRender(void)
{
switch(DISPCNT & 7) {
case 0:
if((!fxOn && !windowOn && !(layerEnable & 0x8000)) ||
cpuDisableSfx)
renderLine = mode0RenderLine;
else if(fxOn && !windowOn && !(layerEnable & 0x8000))
renderLine = mode0RenderLineNoWindow;
else
renderLine = mode0RenderLineAll;
break;
case 1:
if((!fxOn && !windowOn && !(layerEnable & 0x8000)) ||
cpuDisableSfx)
renderLine = mode1RenderLine;
else if(fxOn && !windowOn && !(layerEnable & 0x8000))
renderLine = mode1RenderLineNoWindow;
else
renderLine = mode1RenderLineAll;
break;
case 2:
if((!fxOn && !windowOn && !(layerEnable & 0x8000)) ||
cpuDisableSfx)
renderLine = mode2RenderLine;
else if(fxOn && !windowOn && !(layerEnable & 0x8000))
renderLine = mode2RenderLineNoWindow;
else
renderLine = mode2RenderLineAll;
break;
case 3:
if((!fxOn && !windowOn && !(layerEnable & 0x8000)) ||
cpuDisableSfx)
renderLine = mode3RenderLine;
else if(fxOn && !windowOn && !(layerEnable & 0x8000))
renderLine = mode3RenderLineNoWindow;
else
renderLine = mode3RenderLineAll;
break;
case 4:
if((!fxOn && !windowOn && !(layerEnable & 0x8000)) ||
cpuDisableSfx)
renderLine = mode4RenderLine;
else if(fxOn && !windowOn && !(layerEnable & 0x8000))
renderLine = mode4RenderLineNoWindow;
else
renderLine = mode4RenderLineAll;
break;
case 5:
if((!fxOn && !windowOn && !(layerEnable & 0x8000)) ||
cpuDisableSfx)
renderLine = mode5RenderLine;
else if(fxOn && !windowOn && !(layerEnable & 0x8000))
renderLine = mode5RenderLineNoWindow;
else
renderLine = mode5RenderLineAll;
default:
break;
}
}
void CPUUpdateCPSR()
{
uint32 CPSR = reg[16].I & 0x40;
if(N_FLAG)
CPSR |= 0x80000000;
if(Z_FLAG)
CPSR |= 0x40000000;
if(C_FLAG)
CPSR |= 0x20000000;
if(V_FLAG)
CPSR |= 0x10000000;
if(!armState)
CPSR |= 0x00000020;
if(!armIrqEnable)
CPSR |= 0x80;
CPSR |= (armMode & 0x1F);
reg[16].I = CPSR;
}
void CPUUpdateFlags(bool breakLoop)
{
uint32 CPSR = reg[16].I;
N_FLAG = (CPSR & 0x80000000) ? true: false;
Z_FLAG = (CPSR & 0x40000000) ? true: false;
C_FLAG = (CPSR & 0x20000000) ? true: false;
V_FLAG = (CPSR & 0x10000000) ? true: false;
armState = (CPSR & 0x20) ? false : true;
armIrqEnable = (CPSR & 0x80) ? false : true;
if(breakLoop) {
if (armIrqEnable && (IF & IE) && (IME & 1))
cpuNextEvent = cpuTotalTicks;
}
}
void CPUUpdateFlags()
{
CPUUpdateFlags(true);
}
Don't depend on LSB_FIRST
2015-07-23 20:56:09 +00:00
#ifdef MSB_FIRST
Integrate GBA.cpp into libretro.cpp
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static void CPUSwap(volatile uint32 *a, volatile uint32 *b)
{
volatile uint32 c = *b;
*b = *a;
*a = c;
}
#else
static void CPUSwap(uint32 *a, uint32 *b)
{
uint32 c = *b;
*b = *a;
*a = c;
}
#endif
void CPUSwitchMode(int mode, bool saveState, bool breakLoop)
{
// if(armMode == mode)
// return;
CPUUpdateCPSR();
switch(armMode) {
case 0x10:
case 0x1F:
reg[R13_USR].I = reg[13].I;
reg[R14_USR].I = reg[14].I;
reg[17].I = reg[16].I;
break;
case 0x11:
CPUSwap(&reg[R8_FIQ].I, &reg[8].I);
CPUSwap(&reg[R9_FIQ].I, &reg[9].I);
CPUSwap(&reg[R10_FIQ].I, &reg[10].I);
CPUSwap(&reg[R11_FIQ].I, &reg[11].I);
CPUSwap(&reg[R12_FIQ].I, &reg[12].I);
reg[R13_FIQ].I = reg[13].I;
reg[R14_FIQ].I = reg[14].I;
reg[SPSR_FIQ].I = reg[17].I;
break;
case 0x12:
reg[R13_IRQ].I = reg[13].I;
reg[R14_IRQ].I = reg[14].I;
reg[SPSR_IRQ].I = reg[17].I;
break;
case 0x13:
reg[R13_SVC].I = reg[13].I;
reg[R14_SVC].I = reg[14].I;
reg[SPSR_SVC].I = reg[17].I;
break;
case 0x17:
reg[R13_ABT].I = reg[13].I;
reg[R14_ABT].I = reg[14].I;
reg[SPSR_ABT].I = reg[17].I;
break;
case 0x1b:
reg[R13_UND].I = reg[13].I;
reg[R14_UND].I = reg[14].I;
reg[SPSR_UND].I = reg[17].I;
break;
}
uint32 CPSR = reg[16].I;
uint32 SPSR = reg[17].I;
switch(mode) {
case 0x10:
case 0x1F:
reg[13].I = reg[R13_USR].I;
reg[14].I = reg[R14_USR].I;
reg[16].I = SPSR;
break;
case 0x11:
CPUSwap(&reg[8].I, &reg[R8_FIQ].I);
CPUSwap(&reg[9].I, &reg[R9_FIQ].I);
CPUSwap(&reg[10].I, &reg[R10_FIQ].I);
CPUSwap(&reg[11].I, &reg[R11_FIQ].I);
CPUSwap(&reg[12].I, &reg[R12_FIQ].I);
reg[13].I = reg[R13_FIQ].I;
reg[14].I = reg[R14_FIQ].I;
if(saveState)
reg[17].I = CPSR;
else
reg[17].I = reg[SPSR_FIQ].I;
break;
case 0x12:
reg[13].I = reg[R13_IRQ].I;
reg[14].I = reg[R14_IRQ].I;
reg[16].I = SPSR;
if(saveState)
reg[17].I = CPSR;
else
reg[17].I = reg[SPSR_IRQ].I;
break;
case 0x13:
reg[13].I = reg[R13_SVC].I;
reg[14].I = reg[R14_SVC].I;
reg[16].I = SPSR;
if(saveState)
reg[17].I = CPSR;
else
reg[17].I = reg[SPSR_SVC].I;
break;
case 0x17:
reg[13].I = reg[R13_ABT].I;
reg[14].I = reg[R14_ABT].I;
reg[16].I = SPSR;
if(saveState)
reg[17].I = CPSR;
else
reg[17].I = reg[SPSR_ABT].I;
break;
case 0x1b:
reg[13].I = reg[R13_UND].I;
reg[14].I = reg[R14_UND].I;
reg[16].I = SPSR;
if(saveState)
reg[17].I = CPSR;
else
reg[17].I = reg[SPSR_UND].I;
break;
default:
//systemMessage(MSG_UNSUPPORTED_ARM_MODE, N_("Unsupported ARM mode %02x"), mode);
break;
}
armMode = mode;
CPUUpdateFlags(breakLoop);
CPUUpdateCPSR();
}
void CPUSwitchMode(int mode, bool saveState)
{
CPUSwitchMode(mode, saveState, true);
}
void CPUUndefinedException()
{
uint32 PC = reg[15].I;
bool savedArmState = armState;
CPUSwitchMode(0x1b, true, false);
reg[14].I = PC - (savedArmState ? 4 : 2);
reg[15].I = 0x04;
armState = true;
armIrqEnable = false;
armNextPC = 0x04;
ARM_PREFETCH;
reg[15].I += 4;
}
void CPUSoftwareInterrupt()
{
uint32 PC = reg[15].I;
bool savedArmState = armState;
CPUSwitchMode(0x13, true, false);
reg[14].I = PC - (savedArmState ? 4 : 2);
reg[15].I = 0x08;
armState = true;
armIrqEnable = false;
armNextPC = 0x08;
ARM_PREFETCH;
reg[15].I += 4;
}
void CPUSoftwareInterrupt(int comment)
{
static bool disableMessage = false;
if(armState) comment >>= 16;
if(comment == 0xfa) {
return;
}
if(useBios) {
CPUSoftwareInterrupt();
return;
}
// This would be correct, but it causes problems if uncommented
// else {
// biosProtected = 0xe3a02004;
// }
switch(comment) {
case 0x00:
BIOS_SoftReset();
ARM_PREFETCH;
break;
case 0x01:
BIOS_RegisterRamReset();
break;
case 0x02:
holdState = true;
holdType = -1;
cpuNextEvent = cpuTotalTicks;
break;
case 0x03:
holdState = true;
holdType = -1;
stopState = true;
cpuNextEvent = cpuTotalTicks;
break;
case 0x04:
CPUSoftwareInterrupt();
break;
case 0x05:
CPUSoftwareInterrupt();
break;
case 0x06:
CPUSoftwareInterrupt();
break;
case 0x07:
CPUSoftwareInterrupt();
break;
case 0x08:
BIOS_Sqrt();
break;
case 0x09:
BIOS_ArcTan();
break;
case 0x0A:
BIOS_ArcTan2();
break;
case 0x0B:
{
int len = (reg[2].I & 0x1FFFFF) >>1;
if (!(((reg[0].I & 0xe000000) == 0) ||
((reg[0].I + len) & 0xe000000) == 0))
{
if ((reg[2].I >> 24) & 1)
{
if ((reg[2].I >> 26) & 1)
SWITicks = (7 + memoryWait32[(reg[1].I>>24) & 0xF]) * (len>>1);
else
SWITicks = (8 + memoryWait[(reg[1].I>>24) & 0xF]) * (len);
}
else
{
if ((reg[2].I >> 26) & 1)
SWITicks = (10 + memoryWait32[(reg[0].I>>24) & 0xF] +
memoryWait32[(reg[1].I>>24) & 0xF]) * (len>>1);
else
SWITicks = (11 + memoryWait[(reg[0].I>>24) & 0xF] +
memoryWait[(reg[1].I>>24) & 0xF]) * len;
}
}
}
BIOS_CpuSet();
break;
case 0x0C:
{
int len = (reg[2].I & 0x1FFFFF) >>5;
if (!(((reg[0].I & 0xe000000) == 0) ||
((reg[0].I + len) & 0xe000000) == 0))
{
if ((reg[2].I >> 24) & 1)
SWITicks = (6 + memoryWait32[(reg[1].I>>24) & 0xF] +
7 * (memoryWaitSeq32[(reg[1].I>>24) & 0xF] + 1)) * len;
else
SWITicks = (9 + memoryWait32[(reg[0].I>>24) & 0xF] +
memoryWait32[(reg[1].I>>24) & 0xF] +
7 * (memoryWaitSeq32[(reg[0].I>>24) & 0xF] +
memoryWaitSeq32[(reg[1].I>>24) & 0xF] + 2)) * len;
}
}
BIOS_CpuFastSet();
break;
case 0x0E:
BIOS_BgAffineSet();
break;
case 0x0F:
BIOS_ObjAffineSet();
break;
case 0x10:
{
int len = CPUReadHalfWord(reg[2].I);
if (!(((reg[0].I & 0xe000000) == 0) ||
((reg[0].I + len) & 0xe000000) == 0))
SWITicks = (32 + memoryWait[(reg[0].I>>24) & 0xF]) * len;
}
BIOS_BitUnPack();
break;
case 0x11:
{
uint32 len = CPUReadMemory(reg[0].I) >> 8;
if(!(((reg[0].I & 0xe000000) == 0) ||
((reg[0].I + (len & 0x1fffff)) & 0xe000000) == 0))
SWITicks = (9 + memoryWait[(reg[1].I>>24) & 0xF]) * len;
}
BIOS_LZ77UnCompWram();
break;
case 0x12:
{
uint32 len = CPUReadMemory(reg[0].I) >> 8;
if(!(((reg[0].I & 0xe000000) == 0) ||
((reg[0].I + (len & 0x1fffff)) & 0xe000000) == 0))
SWITicks = (19 + memoryWait[(reg[1].I>>24) & 0xF]) * len;
}
BIOS_LZ77UnCompVram();
break;
case 0x13:
{
uint32 len = CPUReadMemory(reg[0].I) >> 8;
if(!(((reg[0].I & 0xe000000) == 0) ||
((reg[0].I + (len & 0x1fffff)) & 0xe000000) == 0))
SWITicks = (29 + (memoryWait[(reg[0].I>>24) & 0xF]<<1)) * len;
}
BIOS_HuffUnComp();
break;
case 0x14:
{
uint32 len = CPUReadMemory(reg[0].I) >> 8;
if(!(((reg[0].I & 0xe000000) == 0) ||
((reg[0].I + (len & 0x1fffff)) & 0xe000000) == 0))
SWITicks = (11 + memoryWait[(reg[0].I>>24) & 0xF] +
memoryWait[(reg[1].I>>24) & 0xF]) * len;
}
BIOS_RLUnCompWram();
break;
case 0x15:
{
uint32 len = CPUReadMemory(reg[0].I) >> 9;
if(!(((reg[0].I & 0xe000000) == 0) ||
((reg[0].I + (len & 0x1fffff)) & 0xe000000) == 0))
SWITicks = (34 + (memoryWait[(reg[0].I>>24) & 0xF] << 1) +
memoryWait[(reg[1].I>>24) & 0xF]) * len;
}
BIOS_RLUnCompVram();
break;
case 0x16:
{
uint32 len = CPUReadMemory(reg[0].I) >> 8;
if(!(((reg[0].I & 0xe000000) == 0) ||
((reg[0].I + (len & 0x1fffff)) & 0xe000000) == 0))
SWITicks = (13 + memoryWait[(reg[0].I>>24) & 0xF] +
memoryWait[(reg[1].I>>24) & 0xF]) * len;
}
BIOS_Diff8bitUnFilterWram();
break;
case 0x17:
{
uint32 len = CPUReadMemory(reg[0].I) >> 9;
if(!(((reg[0].I & 0xe000000) == 0) ||
((reg[0].I + (len & 0x1fffff)) & 0xe000000) == 0))
SWITicks = (39 + (memoryWait[(reg[0].I>>24) & 0xF]<<1) +
memoryWait[(reg[1].I>>24) & 0xF]) * len;
}
BIOS_Diff8bitUnFilterVram();
break;
case 0x18:
{
uint32 len = CPUReadMemory(reg[0].I) >> 9;
if(!(((reg[0].I & 0xe000000) == 0) ||
((reg[0].I + (len & 0x1fffff)) & 0xe000000) == 0))
SWITicks = (13 + memoryWait[(reg[0].I>>24) & 0xF] +
memoryWait[(reg[1].I>>24) & 0xF]) * len;
}
BIOS_Diff16bitUnFilter();
break;
case 0x19:
//if(reg[0].I)
// systemSoundPause();
//else
// systemSoundResume();
break;
case 0x1F:
BIOS_MidiKey2Freq();
break;
case 0x2A:
BIOS_SndDriverJmpTableCopy();
// let it go, because we don't really emulate this function
default:
if(!disableMessage) {
MDFN_PrintError(_("Unsupported BIOS function %02x called from %08x. A BIOS file is needed in order to get correct behaviour."),
comment,
armMode ? armNextPC - 4: armNextPC - 2);
disableMessage = true;
}
break;
}
}
void CPUCompareVCOUNT()
{
if(VCOUNT == (DISPSTAT >> 8)) {
DISPSTAT |= 4;
UPDATE_REG(0x04, DISPSTAT);
if(DISPSTAT & 0x20) {
IF |= 4;
UPDATE_REG(0x202, IF);
}
} else {
DISPSTAT &= 0xFFFB;
UPDATE_REG(0x4, DISPSTAT);
}
if (layerEnableDelay>0)
{
layerEnableDelay--;
if (layerEnableDelay==1)
layerEnable = layerSettings & DISPCNT;
}
}
#define doDMA(s, d, _si, _di, _c, _transfer32) \
{ \
uint32 si = _si; \
uint32 di = _di; \
uint32 c = _c; \
int sm = s >> 24; \
int dm = d >> 24; \
int sw = 0; \
int dw = 0; \
int sc = c; \
cpuDmaCount = c; \
if (sm>15) \
sm=15; \
if (dm>15) \
dm=15; \
if(_transfer32) { \
s &= 0xFFFFFFFC; \
if(s < 0x02000000 && (reg[15].I >> 24)) { \
while(c != 0) { \
CPUWriteMemory(d, 0); \
d += di; \
c--; \
} \
} else { \
while(c != 0) { \
cpuDmaLast = CPUReadMemory(s); \
CPUWriteMemory(d, cpuDmaLast); \
d += di; \
s += si; \
c--; \
} \
} \
} else { \
s &= 0xFFFFFFFE; \
si = (int)si >> 1; \
di = (int)di >> 1; \
if(s < 0x02000000 && (reg[15].I >> 24)) { \
while(c != 0) { \
CPUWriteHalfWord(d, 0); \
d += di; \
c--; \
} \
} else { \
while(c != 0) { \
cpuDmaLast = CPUReadHalfWord(s); \
CPUWriteHalfWord(d, cpuDmaLast); \
cpuDmaLast |= (cpuDmaLast<<16); \
d += di; \
s += si; \
c--; \
} \
} \
} \
cpuDmaCount = 0; \
int totalTicks = 0; \
if(_transfer32) { \
sw =1+memoryWaitSeq32[sm & 15]; \
dw =1+memoryWaitSeq32[dm & 15]; \
totalTicks = (sw+dw)*(sc-1) + 6 + memoryWait32[sm & 15] + \
memoryWaitSeq32[dm & 15]; \
} \
else \
{ \
sw = 1+memoryWaitSeq[sm & 15]; \
dw = 1+memoryWaitSeq[dm & 15]; \
totalTicks = (sw+dw)*(sc-1) + 6 + memoryWait[sm & 15] + \
memoryWaitSeq[dm & 15]; \
} \
cpuDmaTicksToUpdate += totalTicks; \
}
void CPUCheckDMA(int reason, int dmamask)
{
// DMA 0
if((DMCNT_H[0] & 0x8000) && (dmamask & 1)) {
if(((DMCNT_H[0] >> 12) & 3) == reason) {
uint32 sourceIncrement = 4;
uint32 destIncrement = 4;
switch((DMCNT_H[0] >> 7) & 3) {
case 0:
break;
case 1:
sourceIncrement = (uint32)-4;
break;
case 2:
sourceIncrement = 0;
break;
}
switch((DMCNT_H[0] >> 5) & 3) {
case 0:
break;
case 1:
destIncrement = (uint32)-4;
break;
case 2:
destIncrement = 0;
break;
}
doDMA(dmaSource[0], dmaDest[0], sourceIncrement, destIncrement,
DMCNT_L[0] ? DMCNT_L[0] : 0x4000,
DMCNT_H[0] & 0x0400);
cpuDmaHack = true;
if(DMCNT_H[0] & 0x4000) {
IF |= 0x0100;
UPDATE_REG(0x202, IF);
cpuNextEvent = cpuTotalTicks;
}
if(((DMCNT_H[0] >> 5) & 3) == 3) {
dmaDest[0] = DMDAD_L[0] | (DMDAD_H[0] << 16);
}
if(!(DMCNT_H[0] & 0x0200) || (reason == 0)) {
DMCNT_H[0] &= 0x7FFF;
UPDATE_REG(0xBA, DMCNT_H[0]);
}
}
}
// DMA 1
if((DMCNT_H[1] & 0x8000) && (dmamask & 2)) {
if(((DMCNT_H[1] >> 12) & 3) == reason) {
uint32 sourceIncrement = 4;
uint32 destIncrement = 4;
switch((DMCNT_H[1] >> 7) & 3) {
case 0:
break;
case 1:
sourceIncrement = (uint32)-4;
break;
case 2:
sourceIncrement = 0;
break;
}
switch((DMCNT_H[1] >> 5) & 3) {
case 0:
break;
case 1:
destIncrement = (uint32)-4;
break;
case 2:
destIncrement = 0;
break;
}
if(reason == 3) {
doDMA(dmaSource[1], dmaDest[1], sourceIncrement, 0, 4,
0x0400);
} else {
doDMA(dmaSource[1], dmaDest[1], sourceIncrement, destIncrement,
DMCNT_L[1] ? DMCNT_L[1] : 0x4000,
DMCNT_H[1] & 0x0400);
}
cpuDmaHack = true;
if(DMCNT_H[1] & 0x4000) {
IF |= 0x0200;
UPDATE_REG(0x202, IF);
cpuNextEvent = cpuTotalTicks;
}
if(((DMCNT_H[1] >> 5) & 3) == 3) {
dmaDest[1] = DMDAD_L[1] | (DMDAD_H[1] << 16);
}
if(!(DMCNT_H[1] & 0x0200) || (reason == 0)) {
DMCNT_H[1] &= 0x7FFF;
UPDATE_REG(0xC6, DMCNT_H[1]);
}
}
}
// DMA 2
if((DMCNT_H[2] & 0x8000) && (dmamask & 4)) {
if(((DMCNT_H[2] >> 12) & 3) == reason) {
uint32 sourceIncrement = 4;
uint32 destIncrement = 4;
switch((DMCNT_H[2] >> 7) & 3) {
case 0:
break;
case 1:
sourceIncrement = (uint32)-4;
break;
case 2:
sourceIncrement = 0;
break;
}
switch((DMCNT_H[2] >> 5) & 3) {
case 0:
break;
case 1:
destIncrement = (uint32)-4;
break;
case 2:
destIncrement = 0;
break;
}
if(reason == 3) {
doDMA(dmaSource[2], dmaDest[2], sourceIncrement, 0, 4,
0x0400);
} else {
doDMA(dmaSource[2], dmaDest[2], sourceIncrement, destIncrement,
DMCNT_L[2] ? DMCNT_L[2] : 0x4000,
DMCNT_H[2] & 0x0400);
}
cpuDmaHack = true;
if(DMCNT_H[2] & 0x4000) {
IF |= 0x0400;
UPDATE_REG(0x202, IF);
cpuNextEvent = cpuTotalTicks;
}
if(((DMCNT_H[2] >> 5) & 3) == 3) {
dmaDest[2] = DMDAD_L[2] | (DMDAD_H[2] << 16);
}
if(!(DMCNT_H[2] & 0x0200) || (reason == 0)) {
DMCNT_H[2] &= 0x7FFF;
UPDATE_REG(0xD2, DMCNT_H[2]);
}
}
}
// DMA 3
if((DMCNT_H[3] & 0x8000) && (dmamask & 8)) {
if(((DMCNT_H[3] >> 12) & 3) == reason) {
uint32 sourceIncrement = 4;
uint32 destIncrement = 4;
switch((DMCNT_H[3] >> 7) & 3) {
case 0:
break;
case 1:
sourceIncrement = (uint32)-4;
break;
case 2:
sourceIncrement = 0;
break;
}
switch((DMCNT_H[3] >> 5) & 3) {
case 0:
break;
case 1:
destIncrement = (uint32)-4;
break;
case 2:
destIncrement = 0;
break;
}
doDMA(dmaSource[3], dmaDest[3], sourceIncrement, destIncrement,
DMCNT_L[3] ? DMCNT_L[3] : 0x10000,
DMCNT_H[3] & 0x0400);
if(DMCNT_H[3] & 0x4000) {
IF |= 0x0800;
UPDATE_REG(0x202, IF);
cpuNextEvent = cpuTotalTicks;
}
if(((DMCNT_H[3] >> 5) & 3) == 3) {
dmaDest[3] = DMDAD_L[3] | (DMDAD_H[3] << 16);
}
if(!(DMCNT_H[3] & 0x0200) || (reason == 0)) {
DMCNT_H[3] &= 0x7FFF;
UPDATE_REG(0xDE, DMCNT_H[3]);
}
}
}
}
void CPUUpdateRegister(uint32 address, uint16 value)
{
switch(address)
{
case 0x00:
{
if ((value & 7) >5)
DISPCNT = (value &7);
bool change = ((DISPCNT ^ value) & 0x80) ? true : false;
bool changeBG = ((DISPCNT ^ value) & 0x0F00) ? true : false;
uint16 changeBGon = (((~DISPCNT) & value) & 0x0F00);
DISPCNT = (value & 0xFFF7);
UPDATE_REG(0x00, DISPCNT);
if (changeBGon)
{
layerEnableDelay=4;
layerEnable = layerSettings & value & (~changeBGon);
}
else
layerEnable = layerSettings & value;
// CPUUpdateTicks();
windowOn = (layerEnable & 0x6000) ? true : false;
if(change && !((value & 0x80))) {
if(!(DISPSTAT & 1)) {
lcdTicks = 1008;
// VCOUNT = 0;
// UPDATE_REG(0x06, VCOUNT);
DISPSTAT &= 0xFFFC;
UPDATE_REG(0x04, DISPSTAT);
CPUCompareVCOUNT();
}
// (*renderLine)();
}
CPUUpdateRender();
// we only care about changes in BG0-BG3
if(changeBG)
CPUUpdateRenderBuffers(false);
}
break;
case 0x04:
DISPSTAT = (value & 0xFF38) | (DISPSTAT & 7);
UPDATE_REG(0x04, DISPSTAT);
break;
case 0x06:
// not writable
break;
case 0x08:
BG0CNT = (value & 0xDFCF);
UPDATE_REG(0x08, BG0CNT);
break;
case 0x0A:
BG1CNT = (value & 0xDFCF);
UPDATE_REG(0x0A, BG1CNT);
break;
case 0x0C:
BG2CNT = (value & 0xFFCF);
UPDATE_REG(0x0C, BG2CNT);
break;
case 0x0E:
BG3CNT = (value & 0xFFCF);
UPDATE_REG(0x0E, BG3CNT);
break;
case 0x10:
BGHOFS[0] = value & 511;
UPDATE_REG(0x10, BGHOFS[0]);
break;
case 0x12:
BGVOFS[0] = value & 511;
UPDATE_REG(0x12, BGVOFS[0]);
break;
case 0x14:
BGHOFS[1] = value & 511;
UPDATE_REG(0x14, BGHOFS[1]);
break;
case 0x16:
BGVOFS[1] = value & 511;
UPDATE_REG(0x16, BGVOFS[1]);
break;
case 0x18:
BGHOFS[2] = value & 511;
UPDATE_REG(0x18, BGHOFS[2]);
break;
case 0x1A:
BGVOFS[2] = value & 511;
UPDATE_REG(0x1A, BGVOFS[2]);
break;
case 0x1C:
BGHOFS[3] = value & 511;
UPDATE_REG(0x1C, BGHOFS[3]);
break;
case 0x1E:
BGVOFS[3] = value & 511;
UPDATE_REG(0x1E, BGVOFS[3]);
break;
case 0x20:
BG2PA = value;
UPDATE_REG(0x20, BG2PA);
break;
case 0x22:
BG2PB = value;
UPDATE_REG(0x22, BG2PB);
break;
case 0x24:
BG2PC = value;
UPDATE_REG(0x24, BG2PC);
break;
case 0x26:
BG2PD = value;
UPDATE_REG(0x26, BG2PD);
break;
case 0x28:
BG2X_L = value;
UPDATE_REG(0x28, BG2X_L);
gfxBG2Changed |= 1;
break;
case 0x2A:
BG2X_H = (value & 0xFFF);
UPDATE_REG(0x2A, BG2X_H);
gfxBG2Changed |= 1;
break;
case 0x2C:
BG2Y_L = value;
UPDATE_REG(0x2C, BG2Y_L);
gfxBG2Changed |= 2;
break;
case 0x2E:
BG2Y_H = value & 0xFFF;
UPDATE_REG(0x2E, BG2Y_H);
gfxBG2Changed |= 2;
break;
case 0x30:
BG3PA = value;
UPDATE_REG(0x30, BG3PA);
break;
case 0x32:
BG3PB = value;
UPDATE_REG(0x32, BG3PB);
break;
case 0x34:
BG3PC = value;
UPDATE_REG(0x34, BG3PC);
break;
case 0x36:
BG3PD = value;
UPDATE_REG(0x36, BG3PD);
break;
case 0x38:
BG3X_L = value;
UPDATE_REG(0x38, BG3X_L);
gfxBG3Changed |= 1;
break;
case 0x3A:
BG3X_H = value & 0xFFF;
UPDATE_REG(0x3A, BG3X_H);
gfxBG3Changed |= 1;
break;
case 0x3C:
BG3Y_L = value;
UPDATE_REG(0x3C, BG3Y_L);
gfxBG3Changed |= 2;
break;
case 0x3E:
BG3Y_H = value & 0xFFF;
UPDATE_REG(0x3E, BG3Y_H);
gfxBG3Changed |= 2;
break;
case 0x40:
WIN0H = value;
UPDATE_REG(0x40, WIN0H);
CPUUpdateWindow0();
break;
case 0x42:
WIN1H = value;
UPDATE_REG(0x42, WIN1H);
CPUUpdateWindow1();
break;
case 0x44:
WIN0V = value;
UPDATE_REG(0x44, WIN0V);
break;
case 0x46:
WIN1V = value;
UPDATE_REG(0x46, WIN1V);
break;
case 0x48:
WININ = value & 0x3F3F;
UPDATE_REG(0x48, WININ);
break;
case 0x4A:
WINOUT = value & 0x3F3F;
UPDATE_REG(0x4A, WINOUT);
break;
case 0x4C:
MOSAIC = value;
UPDATE_REG(0x4C, MOSAIC);
break;
case 0x50:
BLDMOD = value & 0x3FFF;
UPDATE_REG(0x50, BLDMOD);
fxOn = ((BLDMOD>>6)&3) != 0;
CPUUpdateRender();
break;
case 0x52:
COLEV = value & 0x1F1F;
UPDATE_REG(0x52, COLEV);
break;
case 0x54:
COLY = value & 0x1F;
UPDATE_REG(0x54, COLY);
break;
case 0x60:
case 0x62:
case 0x64:
case 0x68:
case 0x6c:
case 0x70:
case 0x72:
case 0x74:
case 0x78:
case 0x7c:
case 0x80:
case 0x84:
soundEvent(address&0xFF, (uint8)(value & 0xFF));
soundEvent((address&0xFF)+1, (uint8)(value>>8));
break;
case 0x82:
case 0x88:
case 0xa0:
case 0xa2:
case 0xa4:
case 0xa6:
case 0x90:
case 0x92:
case 0x94:
case 0x96:
case 0x98:
case 0x9a:
case 0x9c:
case 0x9e:
soundEvent(address&0xFF, value);
break;
case 0xB0:
DMSAD_L[0] = value;
UPDATE_REG(0xB0, DMSAD_L[0]);
break;
case 0xB2:
DMSAD_H[0] = value & 0x07FF;
UPDATE_REG(0xB2, DMSAD_H[0]);
break;
case 0xB4:
DMDAD_L[0] = value;
UPDATE_REG(0xB4, DMDAD_L[0]);
break;
case 0xB6:
DMDAD_H[0] = value & 0x07FF;
UPDATE_REG(0xB6, DMDAD_H[0]);
break;
case 0xB8:
DMCNT_L[0] = value & 0x3FFF;
UPDATE_REG(0xB8, 0);
break;
case 0xBA:
{
bool start = ((DMCNT_H[0] ^ value) & 0x8000) ? true : false;
value &= 0xF7E0;
DMCNT_H[0] = value;
UPDATE_REG(0xBA, DMCNT_H[0]);
if(start && (value & 0x8000)) {
dmaSource[0] = DMSAD_L[0] | (DMSAD_H[0] << 16);
dmaDest[0] = DMDAD_L[0] | (DMDAD_H[0] << 16);
CPUCheckDMA(0, 1);
}
}
break;
case 0xBC:
DMSAD_L[1] = value;
UPDATE_REG(0xBC, DMSAD_L[1]);
break;
case 0xBE:
DMSAD_H[1] = value & 0x0FFF;
UPDATE_REG(0xBE, DMSAD_H[1]);
break;
case 0xC0:
DMDAD_L[1] = value;
UPDATE_REG(0xC0, DMDAD_L[1]);
break;
case 0xC2:
DMDAD_H[1] = value & 0x07FF;
UPDATE_REG(0xC2, DMDAD_H[1]);
break;
case 0xC4:
DMCNT_L[1] = value & 0x3FFF;
UPDATE_REG(0xC4, 0);
break;
case 0xC6:
{
bool start = ((DMCNT_H[1] ^ value) & 0x8000) ? true : false;
value &= 0xF7E0;
DMCNT_H[1] = value;
UPDATE_REG(0xC6, DMCNT_H[1]);
if(start && (value & 0x8000)) {
dmaSource[1] = DMSAD_L[1] | (DMSAD_H[1] << 16);
dmaDest[1] = DMDAD_L[1] | (DMDAD_H[1] << 16);
CPUCheckDMA(0, 2);
}
}
break;
case 0xC8:
DMSAD_L[2] = value;
UPDATE_REG(0xC8, DMSAD_L[2]);
break;
case 0xCA:
DMSAD_H[2] = value & 0x0FFF;
UPDATE_REG(0xCA, DMSAD_H[2]);
break;
case 0xCC:
DMDAD_L[2] = value;
UPDATE_REG(0xCC, DMDAD_L[2]);
break;
case 0xCE:
DMDAD_H[2] = value & 0x07FF;
UPDATE_REG(0xCE, DMDAD_H[2]);
break;
case 0xD0:
DMCNT_L[2] = value & 0x3FFF;
UPDATE_REG(0xD0, 0);
break;
case 0xD2:
{
bool start = ((DMCNT_H[2] ^ value) & 0x8000) ? true : false;
value &= 0xF7E0;
DMCNT_H[2] = value;
UPDATE_REG(0xD2, DMCNT_H[2]);
if(start && (value & 0x8000)) {
dmaSource[2] = DMSAD_L[2] | (DMSAD_H[2] << 16);
dmaDest[2] = DMDAD_L[2] | (DMDAD_H[2] << 16);
CPUCheckDMA(0, 4);
}
}
break;
case 0xD4:
DMSAD_L[3] = value;
UPDATE_REG(0xD4, DMSAD_L[3]);
break;
case 0xD6:
DMSAD_H[3] = value & 0x0FFF;
UPDATE_REG(0xD6, DMSAD_H[3]);
break;
case 0xD8:
DMDAD_L[3] = value;
UPDATE_REG(0xD8, DMDAD_L[3]);
break;
case 0xDA:
DMDAD_H[3] = value & 0x0FFF;
UPDATE_REG(0xDA, DMDAD_H[3]);
break;
case 0xDC:
DMCNT_L[3] = value;
UPDATE_REG(0xDC, 0);
break;
case 0xDE:
{
bool start = ((DMCNT_H[3] ^ value) & 0x8000) ? true : false;
value &= 0xFFE0;
DMCNT_H[3] = value;
UPDATE_REG(0xDE, DMCNT_H[3]);
if(start && (value & 0x8000)) {
dmaSource[3] = DMSAD_L[3] | (DMSAD_H[3] << 16);
dmaDest[3] = DMDAD_L[3] | (DMDAD_H[3] << 16);
CPUCheckDMA(0,8);
}
}
break;
case 0x100:
timers[0].Reload = value;
break;
case 0x102:
timers[0].Value = value;
timerOnOffDelay|=1;
cpuNextEvent = cpuTotalTicks;
break;
case 0x104:
timers[1].Reload = value;
break;
case 0x106:
timers[1].Value = value;
timerOnOffDelay|=2;
cpuNextEvent = cpuTotalTicks;
break;
case 0x108:
timers[2].Reload = value;
break;
case 0x10A:
timers[2].Value = value;
timerOnOffDelay|=4;
cpuNextEvent = cpuTotalTicks;
break;
case 0x10C:
timers[3].Reload = value;
break;
case 0x10E:
timers[3].Value = value;
timerOnOffDelay|=8;
cpuNextEvent = cpuTotalTicks;
break;
case 0x128:
if(value & 0x80) {
value &= 0xff7f;
if(value & 1 && (value & 0x4000)) {
UPDATE_REG(0x12a, 0xFF);
IF |= 0x80;
UPDATE_REG(0x202, IF);
value &= 0x7f7f;
}
}
UPDATE_REG(0x128, value);
break;
case 0x130:
P1 |= (value & 0x3FF);
UPDATE_REG(0x130, P1);
break;
case 0x132:
UPDATE_REG(0x132, value & 0xC3FF);
break;
case 0x200:
IE = value & 0x3FFF;
UPDATE_REG(0x200, IE);
if ((IME & 1) && (IF & IE) && armIrqEnable)
cpuNextEvent = cpuTotalTicks;
break;
case 0x202:
IF ^= (value & IF);
UPDATE_REG(0x202, IF);
break;
case 0x204:
{
memoryWait[0x0e] = memoryWaitSeq[0x0e] = gamepakRamWaitState[value & 3];
memoryWait[0x08] = memoryWait[0x09] = gamepakWaitState[(value >> 2) & 3];
memoryWaitSeq[0x08] = memoryWaitSeq[0x09] =
gamepakWaitState0[(value >> 4) & 1];
memoryWait[0x0a] = memoryWait[0x0b] = gamepakWaitState[(value >> 5) & 3];
memoryWaitSeq[0x0a] = memoryWaitSeq[0x0b] =
gamepakWaitState1[(value >> 7) & 1];
memoryWait[0x0c] = memoryWait[0x0d] = gamepakWaitState[(value >> 8) & 3];
memoryWaitSeq[0x0c] = memoryWaitSeq[0x0d] =
gamepakWaitState2[(value >> 10) & 1];
for(int i = 8; i < 15; i++) {
memoryWait32[i] = memoryWait[i] + memoryWaitSeq[i] + 1;
memoryWaitSeq32[i] = memoryWaitSeq[i]*2 + 1;
}
if((value & 0x4000) == 0x4000) {
busPrefetchEnable = true;
busPrefetch = false;
busPrefetchCount = 0;
} else {
busPrefetchEnable = false;
busPrefetch = false;
busPrefetchCount = 0;
}
UPDATE_REG(0x204, value & 0x7FFF);
}
break;
case 0x208:
IME = value & 1;
UPDATE_REG(0x208, IME);
if ((IME & 1) && (IF & IE) && armIrqEnable)
cpuNextEvent = cpuTotalTicks;
break;
case 0x300:
if(value != 0)
value &= 0xFFFE;
UPDATE_REG(0x300, value);
break;
default:
UPDATE_REG(address&0x3FE, value);
break;
}
}
void applyTimer ()
{
if (timerOnOffDelay & 1)
{
timers[0].ClockReload = TIMER_TICKS[timers[0].Value & 3];
if(!timers[0].On && (timers[0].Value & 0x80)) {
// reload the counter
timers[0].D = timers[0].Reload;
timers[0].Ticks = (0x10000 - timers[0].D) << timers[0].ClockReload;
UPDATE_REG(0x100, timers[0].D);
}
timers[0].On = timers[0].Value & 0x80 ? true : false;
timers[0].CNT = timers[0].Value & 0xC7;
UPDATE_REG(0x102, timers[0].CNT);
// CPUUpdateTicks();
}
if (timerOnOffDelay & 2)
{
timers[1].ClockReload = TIMER_TICKS[timers[1].Value & 3];
if(!timers[1].On && (timers[1].Value & 0x80)) {
// reload the counter
timers[1].D = timers[1].Reload;
timers[1].Ticks = (0x10000 - timers[1].D) << timers[1].ClockReload;
UPDATE_REG(0x104, timers[1].D);
}
timers[1].On = timers[1].Value & 0x80 ? true : false;
timers[1].CNT = timers[1].Value & 0xC7;
UPDATE_REG(0x106, timers[1].CNT);
}
if (timerOnOffDelay & 4)
{
timers[2].ClockReload = TIMER_TICKS[timers[2].Value & 3];
if(!timers[2].On && (timers[2].Value & 0x80)) {
// reload the counter
timers[2].D = timers[2].Reload;
timers[2].Ticks = (0x10000 - timers[2].D) << timers[2].ClockReload;
UPDATE_REG(0x108, timers[2].D);
}
timers[2].On = timers[2].Value & 0x80 ? true : false;
timers[2].CNT = timers[2].Value & 0xC7;
UPDATE_REG(0x10A, timers[2].CNT);
}
if (timerOnOffDelay & 8)
{
timers[3].ClockReload = TIMER_TICKS[timers[3].Value & 3];
if(!timers[3].On && (timers[3].Value & 0x80)) {
// reload the counter
timers[3].D = timers[3].Reload;
timers[3].Ticks = (0x10000 - timers[3].D) << timers[3].ClockReload;
UPDATE_REG(0x10C, timers[3].D);
}
timers[3].On = timers[3].Value & 0x80 ? true : false;
timers[3].CNT = timers[3].Value & 0xC7;
UPDATE_REG(0x10E, timers[3].CNT);
}
cpuNextEvent = CPUUpdateTicks();
timerOnOffDelay = 0;
}
static void FLASH_SRAM_Write(uint32 A, uint32 V)
{
// printf("%08x %08x\n", A, V);
if(cpuFlashEnabled && cpuSramEnabled)
{
if((A & 0xFFFF) == 0x5555 && (V & 0xFF) == 0xAA)
cpuSramEnabled = FALSE;
else if((A & 0xFFFF) != 0x2AAA)
cpuFlashEnabled = FALSE;
if(!cpuFlashEnabled || !cpuSramEnabled)
printf("%s emulation disabled by write to: %08x %08x\n", cpuSramEnabled ? "FLASH" : "SRAM", A, V);
}
if(cpuSramEnabled)
sramWrite(A, V);
if(cpuFlashEnabled)
flashWrite(A, V);
}
void CPUWriteMemory(uint32 address, uint32 value)
{
switch(address >> 24)
{
case 0x02:
WRITE32LE(((uint32 *)&workRAM[address & 0x3FFFC]), value);
break; \
case 0x03: \
WRITE32LE(((uint32 *)&internalRAM[address & 0x7ffC]), value); \
break; \
case 0x04: \
if(address < 0x4000400) { \
CPUUpdateRegister((address & 0x3FC), value & 0xFFFF); \
CPUUpdateRegister((address & 0x3FC) + 2, (value >> 16)); \
} \
break; \
case 0x05: \
WRITE32LE(((uint32 *)&paletteRAM[address & 0x3FC]), value); \
break; \
case 0x06: \
address = (address & 0x1fffc);
if (((DISPCNT & 7) >2) && ((address & 0x1C000) == 0x18000))
return;
if ((address & 0x18000) == 0x18000)
address &= 0x17fff;
WRITE32LE(((uint32 *)&vram[address]), value);
break; \
case 0x07:
WRITE32LE(((uint32 *)&oam[address & 0x3fc]), value);
break;
case 0x0D:
if(cpuEEPROMEnabled)
{
eepromWrite(address, value);
break;
}
break;
case 0x0E:
FLASH_SRAM_Write(address, value);
break;
default: break;
}
}
void CPUWriteHalfWord(uint32 address, uint16 value)
{
switch(address >> 24)
{
case 2:
WRITE16LE(((uint16 *)&workRAM[address & 0x3FFFE]),value);
break;
case 3:
WRITE16LE(((uint16 *)&internalRAM[address & 0x7ffe]), value);
break;
case 4:
if(address < 0x4000400)
CPUUpdateRegister(address & 0x3fe, value);
else goto unwritable;
break;
case 5:
WRITE16LE(((uint16 *)&paletteRAM[address & 0x3fe]), value);
break;
case 6:
address = (address & 0x1fffe);
if (((DISPCNT & 7) >2) && ((address & 0x1C000) == 0x18000))
return;
if ((address & 0x18000) == 0x18000)
address &= 0x17fff;
WRITE16LE(((uint16 *)&vram[address]), value);
break;
case 7:
WRITE16LE(((uint16 *)&oam[address & 0x3fe]), value);
break;
case 8:
case 9:
if(GBA_RTC && (address == 0x80000c4 || address == 0x80000c6 || address == 0x80000c8))
GBA_RTC->Write(address, value);
else
goto unwritable;
break;
case 13:
if(cpuEEPROMEnabled)
{
eepromWrite(address, (uint8)value);
break;
}
goto unwritable;
case 0x0E:
FLASH_SRAM_Write(address, value);
break;
default:
unwritable:
break;
}
}
void CPUWriteByte(uint32 address, uint8 b)
{
switch(address >> 24)
{
case 2:
workRAM[address & 0x3FFFF] = b;
break;
case 3:
internalRAM[address & 0x7fff] = b;
break;
case 4:
if(address < 0x4000400)
{
switch(address & 0x3FF)
{
case 0x301:
if(b == 0x80)
stopState = true;
holdState = 1;
holdType = -1;
cpuNextEvent = cpuTotalTicks;
break;
case 0x60:
case 0x61:
case 0x62:
case 0x63:
case 0x64:
case 0x65:
case 0x68:
case 0x69:
case 0x6c:
case 0x6d:
case 0x70:
case 0x71:
case 0x72:
case 0x73:
case 0x74:
case 0x75:
case 0x78:
case 0x79:
case 0x7c:
case 0x7d:
case 0x80:
case 0x81:
case 0x84:
case 0x85:
case 0x90:
case 0x91:
case 0x92:
case 0x93:
case 0x94:
case 0x95:
case 0x96:
case 0x97:
case 0x98:
case 0x99:
case 0x9a:
case 0x9b:
case 0x9c:
case 0x9d:
case 0x9e:
case 0x9f:
soundEvent(address&0xFF, b);
break;
default:
if(address & 1)
CPUUpdateRegister(address & 0x3fe,
((READ16LE(((uint16 *)&ioMem[address & 0x3fe])))
& 0x00FF) |
b<<8);
else
CPUUpdateRegister(address & 0x3fe,
((READ16LE(((uint16 *)&ioMem[address & 0x3fe])) & 0xFF00) | b));
}
break;
} else goto unwritable;
break;
case 5:
// no need to switch
*((uint16 *)&paletteRAM[address & 0x3FE]) = (b << 8) | b;
break;
case 6:
address = (address & 0x1fffe);
if (((DISPCNT & 7) >2) && ((address & 0x1C000) == 0x18000))
return;
if ((address & 0x18000) == 0x18000)
address &= 0x17fff;
// no need to switch
// byte writes to OBJ VRAM are ignored
if ((address) < objTilesAddress[((DISPCNT&7)+1)>>2])
*((uint16 *)&vram[address]) = (b << 8) | b;
break;
case 7:
// no need to switch
// byte writes to OAM are ignored
// *((uint16 *)&oam[address & 0x3FE]) = (b << 8) | b;
break;
case 0xD:
if(cpuEEPROMEnabled) {
eepromWrite(address, b);
break;
}
goto unwritable;
case 0xE:
FLASH_SRAM_Write(address, b);
break;
// default
default:
unwritable:
break;
}
}
uint8 cpuBitsSet[256];
uint8 cpuLowestBitSet[256];
static bool CPUInit(const std::string bios_fn)
{
FILE *memfp;
FlashSizeSet = FALSE;
memfp = fopen(MDFN_MakeFName(MDFNMKF_SAV, 0, "type").c_str(), "rb");
if(memfp)
{
char linebuffer[256];
cpuSramEnabled = FALSE;
cpuFlashEnabled = FALSE;
cpuEEPROMEnabled = FALSE;
cpuEEPROMSensorEnabled = FALSE;
while(fgets(linebuffer, 256, memfp))
{
char args[2][256];
Remove trio
2016-06-06 00:53:13 +00:00
int acount = sscanf(linebuffer, "%255s %255s", args[0], args[1]);
Integrate GBA.cpp into libretro.cpp
2014-06-22 21:46:54 +00:00
if(acount < 1)
continue;
//MDFN_printf(_("Backup memory type override: %s %s\n"), linebuffer, (acount > 1) ? args[1] : "");
if(!strcasecmp(args[0], "sram"))
{
cpuSramEnabled = TRUE;
}
else if(!strcasecmp(args[0], "flash"))
{
cpuFlashEnabled = TRUE;
if(acount == 2)
{
int size_temp = atoi(args[1]);
if(size_temp == 0x10000 || size_temp == 0x20000)
{
flashSetSize(size_temp);
FlashSizeSet = TRUE;
}
else if(size_temp == 64 || size_temp == 128)
{
flashSetSize(size_temp * 1024);
FlashSizeSet = TRUE;
}
else
puts("Flash size error");
}
}
else if(!strcasecmp(args[0], "eeprom"))
cpuEEPROMEnabled = TRUE;
else if(!strcasecmp(args[0], "sensor"))
cpuEEPROMSensorEnabled = TRUE;
else if(!strcasecmp(args[0], "rtc"))
GBA_RTC = new RTC();
}
fclose(memfp);
}
else
{
cpuSramEnabled = true;
cpuFlashEnabled = true;
cpuEEPROMEnabled = true;
cpuEEPROMSensorEnabled = true;
}
useBios = false;
if(bios_fn != "" && bios_fn != "0" && bios_fn != "none")
{
static const FileExtensionSpecStruct KnownBIOSExtensions[] =
{
Cleanups
2016-08-12 16:53:27 +00:00
{ ".gba", "GameBoy Advance ROM Image" },
{ ".agb", "GameBoy Advance ROM Image" },
{ ".bin", "GameBoy Advance ROM Image" },
{ ".bios", "BIOS Image" },
Integrate GBA.cpp into libretro.cpp
2014-06-22 21:46:54 +00:00
{ NULL, NULL }
};
MDFNFILE bios_fp;
if(!bios_fp.Open(MDFN_MakeFName(MDFNMKF_FIRMWARE, 0, bios_fn.c_str()), KnownBIOSExtensions, _("GBA BIOS")))
{
return(0);
}
if(GET_FSIZE(bios_fp) != 0x4000)
{
MDFN_PrintError(_("Invalid BIOS file size"));
bios_fp.Close();
return(0);
}
memcpy(bios, GET_FDATA(bios_fp), 0x4000);
bios_fp.Close();
useBios = true;
}
if(!useBios)
{
memcpy(bios, myROM, sizeof(myROM));
Endian_A32_NE_to_LE(bios, sizeof(myROM) / 4);
}
int i = 0;
biosProtected[0] = 0x00;
biosProtected[1] = 0xf0;
biosProtected[2] = 0x29;
biosProtected[3] = 0xe1;
for(i = 0; i < 256; i++) {
int count = 0;
int j;
for(j = 0; j < 8; j++)
if(i & (1 << j))
count++;
cpuBitsSet[i] = count;
for(j = 0; j < 8; j++)
if(i & (1 << j))
break;
cpuLowestBitSet[i] = j;
}
for(i = 0; i < 0x400; i++)
ioReadable[i] = true;
for(i = 0x10; i < 0x48; i++)
ioReadable[i] = false;
for(i = 0x4c; i < 0x50; i++)
ioReadable[i] = false;
for(i = 0x54; i < 0x60; i++)
ioReadable[i] = false;
for(i = 0x8c; i < 0x90; i++)
ioReadable[i] = false;
for(i = 0xa0; i < 0xb8; i++)
ioReadable[i] = false;
for(i = 0xbc; i < 0xc4; i++)
ioReadable[i] = false;
for(i = 0xc8; i < 0xd0; i++)
ioReadable[i] = false;
for(i = 0xd4; i < 0xdc; i++)
ioReadable[i] = false;
for(i = 0xe0; i < 0x100; i++)
ioReadable[i] = false;
for(i = 0x110; i < 0x120; i++)
ioReadable[i] = false;
for(i = 0x12c; i < 0x130; i++)
ioReadable[i] = false;
for(i = 0x138; i < 0x140; i++)
ioReadable[i] = false;
for(i = 0x144; i < 0x150; i++)
ioReadable[i] = false;
for(i = 0x15c; i < 0x200; i++)
ioReadable[i] = false;
for(i = 0x20c; i < 0x300; i++)
ioReadable[i] = false;
for(i = 0x304; i < 0x400; i++)
ioReadable[i] = false;
if(romSize < 0x1fe2000) {
*((uint16 *)&rom[0x1fe209c]) = 0xdffa; // SWI 0xFA
*((uint16 *)&rom[0x1fe209e]) = 0x4770; // BX LR
} else {
}
return(1);
}
static void CPUReset(void) MDFN_COLD;
static void CPUReset(void)
{
if(GBA_RTC)
GBA_RTC->Reset();
// clean registers
memset(&reg[0], 0, sizeof(reg));
// clean OAM
memset(oam, 0, 0x400);
// clean palette
memset(paletteRAM, 0, 0x400);
// clean vram
memset(vram, 0, 0x20000);
// clean io memory
memset(ioMem, 0, 0x400);
DISPCNT = 0x0080;
DISPSTAT = 0x0000;
VCOUNT = (useBios && !skipBios) ? 0 :0x007E;
BG0CNT = 0x0000;
BG1CNT = 0x0000;
BG2CNT = 0x0000;
BG3CNT = 0x0000;
for(int i = 0; i < 4; i++)
{
BGHOFS[i] = 0;
BGVOFS[i] = 0;
}
BG2PA = 0x0100;
BG2PB = 0x0000;
BG2PC = 0x0000;
BG2PD = 0x0100;
BG2X_L = 0x0000;
BG2X_H = 0x0000;
BG2Y_L = 0x0000;
BG2Y_H = 0x0000;
BG3PA = 0x0100;
BG3PB = 0x0000;
BG3PC = 0x0000;
BG3PD = 0x0100;
BG3X_L = 0x0000;
BG3X_H = 0x0000;
BG3Y_L = 0x0000;
BG3Y_H = 0x0000;
WIN0H = 0x0000;
WIN1H = 0x0000;
WIN0V = 0x0000;
WIN1V = 0x0000;
WININ = 0x0000;
WINOUT = 0x0000;
MOSAIC = 0x0000;
BLDMOD = 0x0000;
COLEV = 0x0000;
COLY = 0x0000;
for(int i = 0; i < 4; i++)
DMSAD_L[i] = DMSAD_H[i] = 0;
for(int i = 0; i < 4; i++)
{
timers[i].D = 0;
timers[i].CNT = 0;
}
P1 = 0x03FF;
IE = 0x0000;
IF = 0x0000;
IME = 0x0000;
armMode = 0x1F;
if(cpuIsMultiBoot) {
reg[13].I = 0x03007F00;
reg[15].I = 0x02000000;
reg[16].I = 0x00000000;
reg[R13_IRQ].I = 0x03007FA0;
reg[R13_SVC].I = 0x03007FE0;
armIrqEnable = true;
} else {
if(useBios && !skipBios) {
reg[15].I = 0x00000000;
armMode = 0x13;
armIrqEnable = false;
} else {
reg[13].I = 0x03007F00;
reg[15].I = 0x08000000;
reg[16].I = 0x00000000;
reg[R13_IRQ].I = 0x03007FA0;
reg[R13_SVC].I = 0x03007FE0;
armIrqEnable = true;
}
}
armState = true;
C_FLAG = false;
V_FLAG = false;
N_FLAG = false;
Z_FLAG = false;
UPDATE_REG(0x00, DISPCNT);
UPDATE_REG(0x06, VCOUNT);
UPDATE_REG(0x20, BG2PA);
UPDATE_REG(0x26, BG2PD);
UPDATE_REG(0x30, BG3PA);
UPDATE_REG(0x36, BG3PD);
UPDATE_REG(0x130, P1);
UPDATE_REG(0x88, 0x200);
// disable FIQ
reg[16].I |= 0x40;
CPUUpdateCPSR();
armNextPC = reg[15].I;
reg[15].I += 4;
// reset internal state
holdState = false;
holdType = 0;
biosProtected[0] = 0x00;
biosProtected[1] = 0xf0;
biosProtected[2] = 0x29;
biosProtected[3] = 0xe1;
lcdTicks = (useBios && !skipBios) ? 1008 : 208;
for(int i = 0; i < 4; i++)
{
timers[i].On = false;
timers[i].Ticks = 0;
timers[i].Reload = 0;
timers[i].ClockReload = 0;
}
dmaSource[0] = 0;
dmaDest[0] = 0;
dmaSource[1] = 0;
dmaDest[1] = 0;
dmaSource[2] = 0;
dmaDest[2] = 0;
dmaSource[3] = 0;
dmaDest[3] = 0;
renderLine = mode0RenderLine;
fxOn = false;
windowOn = false;
saveType = 0;
layerEnable = DISPCNT & layerSettings;
CPUUpdateRenderBuffers(true);
for(int i = 0; i < 256; i++) {
map[i].address = (uint8 *)&dummyAddress;
map[i].mask = 0;
}
map[0].address = bios;
map[0].mask = 0x3FFF;
map[2].address = workRAM;
map[2].mask = 0x3FFFF;
map[3].address = internalRAM;
map[3].mask = 0x7FFF;
map[4].address = ioMem;
map[4].mask = 0x3FF;
map[5].address = paletteRAM;
map[5].mask = 0x3FF;
map[6].address = vram;
map[6].mask = 0x1FFFF;
map[7].address = oam;
map[7].mask = 0x3FF;
map[8].address = rom;
map[8].mask = 0x1FFFFFF;
map[9].address = rom;
map[9].mask = 0x1FFFFFF;
map[10].address = rom;
map[10].mask = 0x1FFFFFF;
map[12].address = rom;
map[12].mask = 0x1FFFFFF;
map[14].address = flashSaveMemory;
map[14].mask = 0xFFFF;
eepromReset();
GBA_Flash_Reset();
soundReset();
CPUUpdateWindow0();
CPUUpdateWindow1();
// make sure registers are correctly initialized if not using BIOS
if(!useBios) {
if(cpuIsMultiBoot)
BIOS_RegisterRamReset(0xfe);
else
BIOS_RegisterRamReset(0xff);
} else {
if(cpuIsMultiBoot)
BIOS_RegisterRamReset(0xfe);
}
ARM_PREFETCH;
cpuDmaHack = false;
SWITicks = 0;
}
void CPUInterrupt()
{
uint32 PC = reg[15].I;
bool savedState = armState;
CPUSwitchMode(0x12, true, false);
reg[14].I = PC;
if(!savedState)
reg[14].I += 2;
reg[15].I = 0x18;
armState = true;
armIrqEnable = false;
armNextPC = reg[15].I;
reg[15].I += 4;
ARM_PREFETCH;
// if(!holdState)
biosProtected[0] = 0x02;
biosProtected[1] = 0xc0;
biosProtected[2] = 0x5e;
biosProtected[3] = 0xe5;
}
unsigned int soundTS = 0;
static uint8 *padq;
static void SetInput(int port, const char *type, void *ptr)
{
padq = (uint8*)ptr;
}
int32 MDFNGBA_GetTimerPeriod(int which)
{
int32 ret = ((0x10000 - timers[which].Reload) << timers[which].ClockReload);
// printf("%d, %08x\n", ret, timers[which].Reload);
return(ret);
}
static int frameready;
static int HelloSkipper;
static void CPULoop(EmulateSpecStruct* espec, int ticks)
{
MDFN_Surface* surface = espec->surface;
int clockTicks;
int timerOverflow = 0;
// variable used by the CPU core
cpuTotalTicks = 0;
cpuBreakLoop = false;
cpuNextEvent = CPUUpdateTicks();
if(cpuNextEvent > ticks)
cpuNextEvent = ticks;
for(;;) {
if(!holdState && !SWITicks) {
if(armState) {
clockTicks = RunARM();
} else {
clockTicks = RunTHUMB();
}
} else
clockTicks = CPUUpdateTicks();
cpuTotalTicks += clockTicks;
if(cpuTotalTicks >= cpuNextEvent) {
int remainingTicks = cpuTotalTicks - cpuNextEvent;
if (SWITicks)
{
SWITicks-=clockTicks;
if (SWITicks<0)
SWITicks = 0;
}
clockTicks = cpuNextEvent;
cpuTotalTicks = 0;
cpuDmaHack = false;
updateLoop:
if (IRQTicks)
{
IRQTicks -= clockTicks;
if (IRQTicks<0)
IRQTicks = 0;
}
soundTS += clockTicks;
lcdTicks -= clockTicks;
if(lcdTicks <= 0) {
if(DISPSTAT & 1) { // V-BLANK
// if in V-Blank mode, keep computing...
if(DISPSTAT & 2) {
lcdTicks += 1008;
VCOUNT++;
UPDATE_REG(0x06, VCOUNT);
DISPSTAT &= 0xFFFD;
UPDATE_REG(0x04, DISPSTAT);
CPUCompareVCOUNT();
} else {
lcdTicks += 224;
DISPSTAT |= 2;
UPDATE_REG(0x04, DISPSTAT);
if(DISPSTAT & 16) {
IF |= 2;
UPDATE_REG(0x202, IF);
}
}
if(VCOUNT >= 228) { //Reaching last line
DISPSTAT &= 0xFFFC;
UPDATE_REG(0x04, DISPSTAT);
VCOUNT = 0;
UPDATE_REG(0x06, VCOUNT);
CPUCompareVCOUNT();
}
} else {
if(DISPSTAT & 2) {
// if in H-Blank, leave it and move to drawing mode
VCOUNT++;
UPDATE_REG(0x06, VCOUNT);
lcdTicks += 1008;
DISPSTAT &= 0xFFFD;
if(VCOUNT == 160)
{
//ticks = 0;
//puts("VBlank");
uint32 joy = padbufblah;
P1 = 0x03FF ^ (joy & 0x3FF);
//if(cpuEEPROMSensorEnabled)
//systemUpdateMotionSensor();
UPDATE_REG(0x130, P1);
uint16 P1CNT = READ16LE(((uint16 *)&ioMem[0x132]));
// this seems wrong, but there are cases where the game
// can enter the stop state without requesting an IRQ from
// the joypad.
if((P1CNT & 0x4000) || stopState) {
uint16 p1 = (0x3FF ^ P1) & 0x3FF;
if(P1CNT & 0x8000) {
if(p1 == (P1CNT & 0x3FF)) {
IF |= 0x1000;
UPDATE_REG(0x202, IF);
}
} else {
if(p1 & P1CNT) {
IF |= 0x1000;
UPDATE_REG(0x202, IF);
}
}
}
DISPSTAT |= 1;
DISPSTAT &= 0xFFFD;
UPDATE_REG(0x04, DISPSTAT);
if(DISPSTAT & 0x0008) {
IF |= 1;
UPDATE_REG(0x202, IF);
}
CPUCheckDMA(1, 0x0f);
}
UPDATE_REG(0x04, DISPSTAT);
CPUCompareVCOUNT();
} else {
if(!HelloSkipper)
{
//printf("RL: %d\n", VCOUNT);
const uint32 *src = lineMix;
(*renderLine)();
if(surface->format.bpp == 32)
{
const uint32* cm = systemColorMap->v32;
uint32 *dest = surface->pixels + VCOUNT * surface->pitch32;
for(int x = 120; x; x--)
{
*dest = cm[*src & 0xFFFF];
dest++;
src++;
*dest = cm[*src & 0xFFFF];
dest++;
src++;
}
}
else
{
const uint16* cm = systemColorMap->v16;
uint16* dest = surface->pixels16 + VCOUNT * surface->pitchinpix;
for(int x = 0; x < 240; x += 2)
{
dest[x + 0] = cm[(uint16)src[x + 0]];
dest[x + 1] = cm[(uint16)src[x + 1]];
}
}
MDFN_MidLineUpdate(espec, VCOUNT);
}
// entering H-Blank
DISPSTAT |= 2;
UPDATE_REG(0x04, DISPSTAT);
lcdTicks += 224;
CPUCheckDMA(2, 0x0f);
if(DISPSTAT & 16) {
IF |= 2;
UPDATE_REG(0x202, IF);
}
if(VCOUNT == 159)
{
frameready = 1;
cpuBreakLoop = 1;
}
}
}
}
if(!stopState) {
if(timers[0].On) {
timers[0].Ticks -= clockTicks;
if(timers[0].Ticks <= 0) {
timers[0].Ticks += (0x10000 - timers[0].Reload) << timers[0].ClockReload;
timerOverflow |= 1;
soundTimerOverflow(0);
if(timers[0].CNT & 0x40) {
IF |= 0x08;
UPDATE_REG(0x202, IF);
}
}
timers[0].D = 0xFFFF - (timers[0].Ticks >> timers[0].ClockReload);
UPDATE_REG(0x100, timers[0].D);
}
if(timers[1].On) {
if(timers[1].CNT & 4) {
if(timerOverflow & 1) {
timers[1].D++;
if(timers[1].D == 0) {
timers[1].D += timers[1].Reload;
timerOverflow |= 2;
soundTimerOverflow(1);
if(timers[1].CNT & 0x40) {
IF |= 0x10;
UPDATE_REG(0x202, IF);
}
}
UPDATE_REG(0x104, timers[1].D);
}
} else {
timers[1].Ticks -= clockTicks;
if(timers[1].Ticks <= 0) {
timers[1].Ticks += (0x10000 - timers[1].Reload) << timers[1].ClockReload;
timerOverflow |= 2;
soundTimerOverflow(1);
if(timers[1].CNT & 0x40) {
IF |= 0x10;
UPDATE_REG(0x202, IF);
}
}
timers[1].D = 0xFFFF - (timers[1].Ticks >> timers[1].ClockReload);
UPDATE_REG(0x104, timers[1].D);
}
}
if(timers[2].On) {
if(timers[2].CNT & 4) {
if(timerOverflow & 2) {
timers[2].D++;
if(timers[2].D == 0) {
timers[2].D += timers[2].Reload;
timerOverflow |= 4;
if(timers[2].CNT & 0x40) {
IF |= 0x20;
UPDATE_REG(0x202, IF);
}
}
UPDATE_REG(0x108, timers[2].D);
}
} else {
timers[2].Ticks -= clockTicks;
if(timers[2].Ticks <= 0) {
timers[2].Ticks += (0x10000 - timers[2].Reload) << timers[2].ClockReload;
timerOverflow |= 4;
if(timers[2].CNT & 0x40) {
IF |= 0x20;
UPDATE_REG(0x202, IF);
}
}
timers[2].D = 0xFFFF - (timers[2].Ticks >> timers[2].ClockReload);
UPDATE_REG(0x108, timers[2].D);
}
}
if(timers[3].On) {
if(timers[3].CNT & 4) {
if(timerOverflow & 4) {
timers[3].D++;
if(timers[3].D == 0) {
timers[3].D += timers[3].Reload;
if(timers[3].CNT & 0x40) {
IF |= 0x40;
UPDATE_REG(0x202, IF);
}
}
UPDATE_REG(0x10C, timers[3].D);
}
} else {
timers[3].Ticks -= clockTicks;
if(timers[3].Ticks <= 0) {
timers[3].Ticks += (0x10000 - timers[3].Reload) << timers[3].ClockReload;
if(timers[3].CNT & 0x40) {
IF |= 0x40;
UPDATE_REG(0x202, IF);
}
}
timers[3].D = 0xFFFF - (timers[3].Ticks >> timers[3].ClockReload);
UPDATE_REG(0x10C, timers[3].D);
}
}
}
timerOverflow = 0;
ticks -= clockTicks;
cpuNextEvent = CPUUpdateTicks();
if(cpuDmaTicksToUpdate > 0) {
if(cpuDmaTicksToUpdate > cpuNextEvent)
clockTicks = cpuNextEvent;
else
clockTicks = cpuDmaTicksToUpdate;
cpuDmaTicksToUpdate -= clockTicks;
if(cpuDmaTicksToUpdate < 0)
cpuDmaTicksToUpdate = 0;
cpuDmaHack = true;
goto updateLoop;
}
if(IF && (IME & 1) && armIrqEnable) {
int res = IF & IE;
if(stopState)
res &= 0x3080;
if(res) {
if (intState)
{
if (!IRQTicks)
{
CPUInterrupt();
intState = false;
holdState = false;
stopState = false;
holdType = 0;
}
}
else
{
if (!holdState)
{
intState = true;
IRQTicks=7;
if (cpuNextEvent> IRQTicks)
cpuNextEvent = IRQTicks;
}
else
{
CPUInterrupt();
holdState = false;
stopState = false;
holdType = 0;
}
}
// Stops the SWI Ticks emulation if an IRQ is executed
//(to avoid problems with nested IRQ/SWI)
if (SWITicks)
SWITicks = 0;
}
}
if(remainingTicks > 0) {
if(remainingTicks > cpuNextEvent)
clockTicks = cpuNextEvent;
else
clockTicks = remainingTicks;
remainingTicks -= clockTicks;
if(remainingTicks < 0)
remainingTicks = 0;
goto updateLoop;
}
if (timerOnOffDelay)
applyTimer();
if(cpuNextEvent > ticks)
cpuNextEvent = ticks;
if(ticks <= 0 || cpuBreakLoop)
break;
}
}
}
static void Emulate(EmulateSpecStruct *espec)
{
espec->DisplayRect.x = 0;
espec->DisplayRect.y = 0;
espec->DisplayRect.w = 240;
espec->DisplayRect.h = 160;
#if 0
{
static bool firstcat = true;
MDFN_PixelFormat nf;
nf.bpp = 16;
nf.colorspace = MDFN_COLORSPACE_RGB;
nf.Rshift = 11;
nf.Gshift = 5;
nf.Bshift = 0;
nf.Ashift = 16;
nf.Rprec = 5;
nf.Gprec = 5;
nf.Bprec = 5;
nf.Aprec = 8;
espec->surface->SetFormat(nf, false);
espec->VideoFormatChanged = firstcat;
firstcat = false;
}
#endif
if(espec->VideoFormatChanged)
RedoColorMap(espec->surface->format); //espec->surface->format.Rshift, espec->surface->format.Gshift, espec->surface->format.Bshift);
if(espec->SoundFormatChanged)
MDFNGBA_SetSoundRate(espec->SoundRate);
#if 0
int cursong = workRAM[0x2020c96- (0x2 << 24)];
static int last_song = 0;
if(cursong != last_song)
{
if(last_song == 250)
{
MDFNI_EndWaveRecord();
exit(1);
}
else
{
char wavepath[256];
if(last_song != 0)
MDFNI_EndWaveRecord();
trio_snprintf(wavepath, 256, "/meow/mother3-%d.wav", cursong);
MDFNI_BeginWaveRecord(FSettings.SndRate, 2, wavepath);
}
last_song = cursong;
}
#endif
padbufblah = padq[0] | (padq[1] << 8);
frameready = 0;
HelloSkipper = espec->skip;
MDFNMP_ApplyPeriodicCheats();
while(!frameready && (soundTS < 300000))
CPULoop(espec, 300000);
if(GBA_RTC)
GBA_RTC->AddTime(soundTS);
espec->MasterCycles = soundTS;
espec->SoundBufSize = MDFNGBASOUND_Flush(espec->SoundBuf, espec->SoundBufMaxSize);
}
static void SetLayerEnableMask(uint64 mask)
{
layerSettings = mask << 8;
layerEnable = layerSettings & DISPCNT;
CPUUpdateRender();
CPUUpdateRenderBuffers(true);
CPUUpdateWindow0();
CPUUpdateWindow1();
}
static void DoSimpleCommand(int cmd)
{
switch(cmd)
{
case MDFN_MSC_POWER:
case MDFN_MSC_RESET: CPUReset(); break;
}
}
static MDFNSetting GBASettings[] =
{
Cleanups
2016-08-12 16:53:27 +00:00
{ "gba.bios", MDFNSF_EMU_STATE, "Path to optional GBA BIOS ROM image.", NULL, MDFNST_STRING, "" },
Integrate GBA.cpp into libretro.cpp
2014-06-22 21:46:54 +00:00
{ NULL }
};
static const InputDeviceInputInfoStruct IDII[] =
{
{ "a", "A", /*VIRTB_1,*/ 7, IDIT_BUTTON_CAN_RAPID, NULL },
{ "b", "B", /*VIRTB_0,*/ 6, IDIT_BUTTON_CAN_RAPID, NULL },
{ "select", "SELECT", /*VIRTB_SELECT,*/ 4, IDIT_BUTTON, NULL },
{ "start", "START", /*VIRTB_START,*/ 5, IDIT_BUTTON, NULL },
{ "right", "RIGHT →", /*VIRTB_DP0_R,*/ 3, IDIT_BUTTON, "left" },
{ "left", "LEFT ←", /*VIRTB_DP0_L,*/ 2, IDIT_BUTTON, "right" },
{ "up", "UP ↑", /*VIRTB_DP0_U,*/ 0, IDIT_BUTTON, "down" },
{ "down", "DOWN ↓", /*VIRTB_DP0_D,*/ 1, IDIT_BUTTON, "up" },
{ "shoulder_r", "SHOULDER R", /*VIRTB_SHLDR_L,*/ 9, IDIT_BUTTON, NULL },
{ "shoulder_l", "SHOULDER L", /*VIRTB_SHLDR_R,*/ 8, IDIT_BUTTON, NULL },
};
static InputDeviceInfoStruct InputDeviceInfo[] =
{
{
"gamepad",
"Gamepad",
NULL,
NULL,
sizeof(IDII) / sizeof(InputDeviceInputInfoStruct),
IDII,
}
};
static const InputPortInfoStruct PortInfo[] =
{
{ "builtin", "Built-In", sizeof(InputDeviceInfo) / sizeof(InputDeviceInfoStruct), InputDeviceInfo, "gamepad" }
};
static InputInfoStruct InputInfo =
{
sizeof(PortInfo) / sizeof(InputPortInfoStruct),
PortInfo
};
static const FileExtensionSpecStruct KnownExtensions[] =
{
Cleanups
2016-08-12 16:53:27 +00:00
{ ".gsf", "GSF Rip" },
{ ".minigsf", "MiniGSF Rip" },
{ ".gba", "GameBoy Advance ROM Image" },
{ ".agb", "GameBoy Advance ROM Image" },
{ ".bin", "GameBoy Advance ROM Image" },
Integrate GBA.cpp into libretro.cpp
2014-06-22 21:46:54 +00:00
{ NULL, NULL }
};
MDFNGI EmulatedGBA =
{
GBASettings,
MDFN_MASTERCLOCK_FIXED(16777216),
(uint32)((double)4194304 / 70224 * 65536 * 256),
false, // Multires possible?
240, // lcm_width
160, // lcm_height
NULL, // Dummy
240, // Nominal width
160, // Nominal height
240, // Framebuffer width
160, // Framebuffer height
2, // Number of output sound channels
};
Update MD5 checksum correctly.
2013-04-27 14:40:24 +00:00
static void set_basename(const char *path)
{
const char *base = strrchr(path, '/');
if (!base)
base = strrchr(path, '\\');
if (base)
retro_base_name = base + 1;
else
retro_base_name = path;
retro_base_name = retro_base_name.substr(0, retro_base_name.find_last_of('.'));
}
Get rid of everything Minifen will handle for us
2012-11-16 14:12:25 +00:00
#ifdef NEED_DEINTERLACER
static bool PrevInterlaced;
static Deinterlacer deint;
#endif
(Mednafen GBA) Added GBA core, can compile and run
2012-11-24 07:17:18 +00:00
#define MEDNAFEN_CORE_NAME_MODULE "gba"
#define MEDNAFEN_CORE_NAME "Mednafen VBA-M"
Update to 0.9.36
2014-06-22 20:38:56 +00:00
#define MEDNAFEN_CORE_VERSION "v0.9.36"
Update Mednafen GBA core to 0.9.33.3
2014-04-30 03:05:04 +00:00
#define MEDNAFEN_CORE_EXTENSIONS "gba|agb|bin"
(Mednafen GBA) Added GBA core, can compile and run
2012-11-24 07:17:18 +00:00
#define MEDNAFEN_CORE_TIMING_FPS 59.73
#define MEDNAFEN_CORE_GEOMETRY_BASE_W (game->nominal_width)
#define MEDNAFEN_CORE_GEOMETRY_BASE_H (game->nominal_height)
#define MEDNAFEN_CORE_GEOMETRY_MAX_W 240
#define MEDNAFEN_CORE_GEOMETRY_MAX_H 160
Fix aspect ratio. According to my GBA SP and a ruler, a GBA screen is exactly 6.0 by 4.0 centimeters from the first pixel to the last. Closes #4.
2014-12-02 21:49:59 +00:00
#define MEDNAFEN_CORE_GEOMETRY_ASPECT_RATIO (3.0 / 2.0)
(Mednafen GBA) Added GBA core, can compile and run
2012-11-24 07:17:18 +00:00
#define FB_WIDTH 240
#define FB_HEIGHT 160
Fix PAL PSX crashes due to insufficient framebuffer
2013-10-01 12:28:59 +00:00
#define FB_MAX_HEIGHT FB_HEIGHT
Make threading code self-contained
2012-10-20 21:56:43 +00:00
const char *mednafen_core_str = MEDNAFEN_CORE_NAME;
Setting up fr multiple cores - to be able to compile each core as separate
2012-10-20 21:32:28 +00:00
static void check_system_specs(void)
{
(RGB565) Can now use RGB565 color format if frontend supports it (Wswan) Experimental wswan support - not yet working
2012-10-22 12:34:14 +00:00
unsigned level = 0;
environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);
Setting up fr multiple cores - to be able to compile each core as separate
2012-10-20 21:32:28 +00:00
}
Reimplement cputest.c for libretro
2014-04-21 22:25:50 +00:00
void retro_init(void)
Initial commit.
2012-06-03 15:48:14 +00:00
{
Fixup libretro logging
2014-01-02 01:50:09 +00:00
struct retro_log_callback log;
if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log))
log_cb = log.log;
else
log_cb = NULL;
Cleanup mednafen.cpp - leave only what we need
2012-11-29 22:21:44 +00:00
MDFNI_InitializeModule();
Initial commit.
2012-06-03 15:48:14 +00:00
Use RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY.
2012-06-11 23:03:09 +00:00
const char *dir = NULL;
Avoid using configs. Requires system dir.
2012-06-15 23:00:17 +00:00
Use RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY.
2012-06-11 23:03:09 +00:00
if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir)
{
Updates to 0.9.25.
2012-10-13 13:31:49 +00:00
retro_base_directory = dir;
Fix up path handling for bios/memcard.
2012-11-10 01:20:13 +00:00
// Make sure that we don't have any lingering slashes, etc, as they break Windows.
Fix derpy derp.
2012-11-10 11:59:05 +00:00
size_t last = retro_base_directory.find_last_not_of("/\\");
if (last != std::string::npos)
last++;
retro_base_directory = retro_base_directory.substr(0, last);
Fix up path handling for bios/memcard.
2012-11-10 01:20:13 +00:00
MDFNI_Initialize(retro_base_directory.c_str());
Use RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY.
2012-06-11 23:03:09 +00:00
}
Avoid using configs. Requires system dir.
2012-06-15 23:00:17 +00:00
else
Use RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY.
2012-06-11 23:03:09 +00:00
{
Hook up new logging interface
2013-12-17 01:24:08 +00:00
/* TODO: Add proper fallback */
if (log_cb)
log_cb(RETRO_LOG_WARN, "System directory is not defined. Fallback on using same dir as ROM for system directory later ...\n");
Avoid using configs. Requires system dir.
2012-06-15 23:00:17 +00:00
failed_init = true;
Use RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY.
2012-06-11 23:03:09 +00:00
}
Add RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY Modify stubs.cpp so saves will go to the correct location
2014-02-07 07:07:58 +00:00
if (environ_cb(RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY, &dir) && dir)
{
Add a fallback for situations where SAVE_DIRECTORY is not defined Added color options for VB
2014-02-07 22:34:14 +00:00
// If save directory is defined use it, otherwise use system directory
retro_save_directory = *dir ? dir : retro_base_directory;
Add RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY Modify stubs.cpp so saves will go to the correct location
2014-02-07 07:07:58 +00:00
// Make sure that we don't have any lingering slashes, etc, as they break Windows.
size_t last = retro_save_directory.find_last_not_of("/\\");
if (last != std::string::npos)
last++;
retro_save_directory = retro_save_directory.substr(0, last);
}
else
{
/* TODO: Add proper fallback */
if (log_cb)
Add a fallback for situations where SAVE_DIRECTORY is not defined Added color options for VB
2014-02-07 22:34:14 +00:00
log_cb(RETRO_LOG_WARN, "Save directory is not defined. Fallback on using SYSTEM directory ...\n");
Add RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY Modify stubs.cpp so saves will go to the correct location
2014-02-07 07:07:58 +00:00
retro_save_directory = retro_base_directory;
}
Use sthread abstraction for threads.
2012-06-09 22:46:41 +00:00
(RGB565) Can now use RGB565 color format if frontend supports it (Wswan) Experimental wswan support - not yet working
2012-10-22 12:34:14 +00:00
#if defined(WANT_16BPP) && defined(FRONTEND_SUPPORTS_RGB565)
enum retro_pixel_format rgb565 = RETRO_PIXEL_FORMAT_RGB565;
Hook up new logging interface
2013-12-17 01:24:08 +00:00
if (environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &rgb565) && log_cb)
log_cb(RETRO_LOG_INFO, "Frontend supports RGB565 - will use that instead of XRGB1555.\n");
(RGB565) Can now use RGB565 color format if frontend supports it (Wswan) Experimental wswan support - not yet working
2012-10-22 12:34:14 +00:00
#endif
Reimplement cputest.c for libretro
2014-04-21 22:25:50 +00:00
if (environ_cb(RETRO_ENVIRONMENT_GET_PERF_INTERFACE, &perf_cb))
perf_get_cpu_features_cb = perf_cb.get_cpu_features;
else
perf_get_cpu_features_cb = NULL;
Setting up fr multiple cores - to be able to compile each core as separate
2012-10-20 21:32:28 +00:00
check_system_specs();
Initial commit.
2012-06-03 15:48:14 +00:00
}
Add logging
2014-04-20 14:32:46 +00:00
void retro_reset(void)
Initial commit.
2012-06-03 15:48:14 +00:00
{
Cleanups
2016-08-09 17:34:33 +00:00
DoSimpleCommand(MDFN_MSC_RESET);
Initial commit.
2012-06-03 15:48:14 +00:00
}
bool retro_load_game_special(unsigned, const struct retro_game_info *, size_t)
{
return false;
}
(Mednafen PCE Fast) Possibility to set CD speed, CDDA volume, ADPCM value
2013-05-24 15:26:57 +00:00
static void set_volume (uint32_t *ptr, unsigned number)
{
switch(number)
{
default:
*ptr = number;
break;
}
}
Add first runtime option to Mednafen core - Mednafen PCE_Fast - pce_nospritelimit
2013-04-09 02:05:18 +00:00
static void check_variables(void)
{
struct retro_variable var = {0};
Enable HLE bios by default in gba core, and add option to switch to original bios
2014-03-08 13:32:15 +00:00
var.key = "gba_hle";
Fixup check_variables
2014-06-21 02:00:59 +00:00
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
Enable HLE bios by default in gba core, and add option to switch to original bios
2014-03-08 13:32:15 +00:00
{
if (strcmp(var.value, "enabled") == 0)
setting_gba_hle = 1;
else if (strcmp(var.value, "disabled") == 0)
setting_gba_hle = 0;
}
Add first runtime option to Mednafen core - Mednafen PCE_Fast - pce_nospritelimit
2013-04-09 02:05:18 +00:00
}
Reimplement controls - don't spam SetInput on every frame - rather update pointer - will later add runtime options for changing controller types
2013-04-09 03:23:42 +00:00
#define MAX_PLAYERS 1
#define MAX_BUTTONS 11
static uint16_t input_buf;
static void hookup_ports(bool force)
{
if (initial_ports_hookup && !force)
return;
// Possible endian bug ...
Cleanups
2016-08-09 17:34:33 +00:00
SetInput(0, "gamepad", &input_buf);
Reimplement controls - don't spam SetInput on every frame - rather update pointer - will later add runtime options for changing controller types
2013-04-09 03:23:42 +00:00
initial_ports_hookup = true;
}
Initial commit.
2012-06-03 15:48:14 +00:00
bool retro_load_game(const struct retro_game_info *info)
{
Better error handling
2017-01-24 14:45:51 +00:00
if (!info || failed_init)
Avoid using configs. Requires system dir.
2012-06-15 23:00:17 +00:00
return false;
Implement input descriptors
2014-12-05 13:45:42 +00:00
struct retro_input_descriptor desc[] = {
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "A" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
{ 0 },
};
environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc);
Integrated pfce_fast now too - can compile pce_fast now in same repo
2012-10-20 23:47:02 +00:00
#ifdef WANT_32BPP
Opt-in for 24bpp.
2012-06-16 13:07:18 +00:00
enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_XRGB8888;
Fixes
2013-12-17 10:08:34 +00:00
if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt))
No more conversion to 16bpp for PSX
2012-10-21 00:37:11 +00:00
{
Hook up new logging interface
2013-12-17 01:24:08 +00:00
if (log_cb)
log_cb(RETRO_LOG_ERROR, "Pixel format XRGB8888 not supported by platform, cannot use %s.\n", MEDNAFEN_CORE_NAME);
No more conversion to 16bpp for PSX
2012-10-21 00:37:11 +00:00
return false;
}
Integrated pfce_fast now too - can compile pce_fast now in same repo
2012-10-20 23:47:02 +00:00
#endif
Opt-in for 24bpp.
2012-06-16 13:07:18 +00:00
Implement optional overscan cropping for PSX.
2013-02-25 19:39:39 +00:00
overscan = false;
environ_cb(RETRO_ENVIRONMENT_GET_OVERSCAN, &overscan);
Update MD5 checksum correctly.
2013-04-27 14:40:24 +00:00
set_basename(info->path);
Updates to 0.9.25.
2012-10-13 13:31:49 +00:00
Enable HLE bios by default in gba core, and add option to switch to original bios
2014-03-08 13:32:15 +00:00
check_variables();
Integrated pfce_fast now too - can compile pce_fast now in same repo
2012-10-20 23:47:02 +00:00
game = MDFNI_LoadGame(MEDNAFEN_CORE_NAME_MODULE, info->path);
Fix possible segfault when game fails to load.
2012-09-23 09:52:47 +00:00
if (!game)
return false;
Fix PAL emulation Also fixes overscan issues with more resolutions. Signed-off-by: Saggi Mizrahi <ficoos@gmail.com>
2012-08-22 19:38:30 +00:00
MDFN_PixelFormat pix_fmt(MDFN_COLORSPACE_RGB, 16, 8, 0, 24);
Get rid of everything Minifen will handle for us
2012-11-16 14:12:25 +00:00
memset(&last_pixel_format, 0, sizeof(MDFN_PixelFormat));
Fix PAL PSX crashes due to insufficient framebuffer
2013-10-01 12:28:59 +00:00
Take out non-GBA parts
2014-06-22 21:40:47 +00:00
surf = new MDFN_Surface(NULL, FB_WIDTH, FB_HEIGHT, FB_WIDTH, pix_fmt);
Updates to 0.9.25.
2012-10-13 13:31:49 +00:00
Get rid of everything Minifen will handle for us
2012-11-16 14:12:25 +00:00
#ifdef NEED_DEINTERLACER
PrevInterlaced = false;
deint.ClearState();
#endif
Reimplement controls - don't spam SetInput on every frame - rather update pointer - will later add runtime options for changing controller types
2013-04-09 03:23:42 +00:00
hookup_ports(true);
Putting check_variables up front in retro_load_game was causing crash issues for Mednafen NGP
2013-09-17 00:03:54 +00:00
check_variables();
Initial commit.
2012-06-03 15:48:14 +00:00
return game;
}
void retro_unload_game()
{
Remove reliance on PSS_STYLE
2013-01-19 09:22:57 +00:00
if (!game)
return;
Cleanup mednafen.cpp - leave only what we need
2012-11-29 22:21:44 +00:00
Reimplement MDFNI_CloseGame - will properly clean up CDInterfaces (and thread with it) before shutdown of libretro side
2014-04-20 19:44:56 +00:00
MDFNI_CloseGame();
Initial commit.
2012-06-03 15:48:14 +00:00
}
Reimplement controls - don't spam SetInput on every frame - rather update pointer - will later add runtime options for changing controller types
2013-04-09 03:23:42 +00:00
Add support for regular gamepad input Some games cannot work with dual analog input. (eg. Castlevania - Symphony of the Night). I reuse the mouse device because RetroArch doesn't givce plugins the ability to add "features". I choose specifically the mouse options because it's the only device type that can be specified per input port. The default is now "gamepad" because it's the most compatible option and it is the default in mednafen [1]. [1] http://mednafen.sourceforge.net/documentation/09x/psx.html Signed-off-by: Saggi Mizrahi <ficoos@gmail.com>
2012-07-25 01:17:14 +00:00
Input appears to work.
2012-06-03 16:58:46 +00:00
// Hardcoded for PSX. No reason to parse lots of structures ...
// See mednafen/psx/input/gamepad.cpp
Setting up fr multiple cores - to be able to compile each core as separate
2012-10-20 21:32:28 +00:00
static void update_input(void)
Input appears to work.
2012-06-03 16:58:46 +00:00
{
(Mednafen GBA) Added GBA core, can compile and run
2012-11-24 07:17:18 +00:00
input_buf = 0;
Fix update_input() loop boundaries Prevent the for loop to go beyond the button array's boundaries. This prevent crashes in frontends when a button number corresponding to a random value in memory is asked for its value.
2015-08-27 17:05:05 +00:00
size_t map_size = 10;
(Mednafen GBA) Added GBA core, can compile and run
2012-11-24 07:17:18 +00:00
static unsigned map[] = {
RETRO_DEVICE_ID_JOYPAD_A, //A button
RETRO_DEVICE_ID_JOYPAD_B, //B button
RETRO_DEVICE_ID_JOYPAD_SELECT,
RETRO_DEVICE_ID_JOYPAD_START,
RETRO_DEVICE_ID_JOYPAD_RIGHT,
RETRO_DEVICE_ID_JOYPAD_LEFT,
RETRO_DEVICE_ID_JOYPAD_UP,
RETRO_DEVICE_ID_JOYPAD_DOWN,
RETRO_DEVICE_ID_JOYPAD_R,
RETRO_DEVICE_ID_JOYPAD_L,
};
Fix update_input() loop boundaries Prevent the for loop to go beyond the button array's boundaries. This prevent crashes in frontends when a button number corresponding to a random value in memory is asked for its value.
2015-08-27 17:05:05 +00:00
for (unsigned i = 0; i < map_size; i++)
(Mednafen GBA) Added GBA core, can compile and run
2012-11-24 07:17:18 +00:00
input_buf |= map[i] != -1u &&
input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, map[i]) ? (1 << i) : 0;
(Mednafen GBA) input works on big-endian
2012-11-27 04:54:01 +00:00
#ifdef MSB_FIRST
union {
uint8_t b[2];
uint16_t s;
} u;
u.s = input_buf;
input_buf = u.b[0] | u.b[1] << 8;
#endif
Initial commit.
2012-06-03 15:48:14 +00:00
}
Update FPS field to reflect empirical testing.
2012-09-20 19:38:19 +00:00
static uint64_t video_frames, audio_frames;
Add first runtime option to Mednafen core - Mednafen PCE_Fast - pce_nospritelimit
2013-04-09 02:05:18 +00:00
Initial commit.
2012-06-03 15:48:14 +00:00
void retro_run()
{
input_poll_cb();
Input appears to work.
2012-06-03 16:58:46 +00:00
update_input();
Initial commit.
2012-06-03 15:48:14 +00:00
static int16_t sound_buf[0x10000];
Fix PAL PSX crashes due to insufficient framebuffer
2013-10-01 12:28:59 +00:00
static MDFN_Rect rects[FB_MAX_HEIGHT];
Opt-in for 24bpp.
2012-06-16 13:07:18 +00:00
rects[0].w = ~0;
Initial commit.
2012-06-03 15:48:14 +00:00
Add support for regular gamepad input Some games cannot work with dual analog input. (eg. Castlevania - Symphony of the Night). I reuse the mouse device because RetroArch doesn't givce plugins the ability to add "features". I choose specifically the mouse options because it's the only device type that can be specified per input port. The default is now "gamepad" because it's the most compatible option and it is the default in mednafen [1]. [1] http://mednafen.sourceforge.net/documentation/09x/psx.html Signed-off-by: Saggi Mizrahi <ficoos@gmail.com>
2012-07-25 01:17:14 +00:00
EmulateSpecStruct spec = {0};
Initial commit.
2012-06-03 15:48:14 +00:00
spec.surface = surf;
spec.SoundRate = 44100;
spec.SoundBuf = sound_buf;
spec.LineWidths = rects;
spec.SoundBufMaxSize = sizeof(sound_buf) / 2;
spec.SoundVolume = 1.0;
spec.soundmultiplier = 1.0;
Get rid of everything Minifen will handle for us
2012-11-16 14:12:25 +00:00
spec.SoundBufSize = 0;
spec.VideoFormatChanged = false;
spec.SoundFormatChanged = false;
Remove reliance on PSS_STYLE
2013-01-19 09:22:57 +00:00
if (memcmp(&last_pixel_format, &spec.surface->format, sizeof(MDFN_PixelFormat)))
Get rid of everything Minifen will handle for us
2012-11-16 14:12:25 +00:00
{
spec.VideoFormatChanged = TRUE;
last_pixel_format = spec.surface->format;
}
Remove reliance on PSS_STYLE
2013-01-19 09:22:57 +00:00
if (spec.SoundRate != last_sound_rate)
Get rid of everything Minifen will handle for us
2012-11-16 14:12:25 +00:00
{
spec.SoundFormatChanged = true;
last_sound_rate = spec.SoundRate;
}
Cleanups
2016-08-09 17:34:33 +00:00
Emulate(&spec);
Get rid of everything Minifen will handle for us
2012-11-16 14:12:25 +00:00
#ifdef NEED_DEINTERLACER
Remove reliance on PSS_STYLE
2013-01-19 09:22:57 +00:00
if (spec.InterlaceOn)
Get rid of everything Minifen will handle for us
2012-11-16 14:12:25 +00:00
{
Remove reliance on PSS_STYLE
2013-01-19 09:22:57 +00:00
if (!PrevInterlaced)
Get rid of everything Minifen will handle for us
2012-11-16 14:12:25 +00:00
deint.ClearState();
deint.Process(spec.surface, spec.DisplayRect, spec.LineWidths, spec.InterlaceField);
PrevInterlaced = true;
spec.InterlaceOn = false;
spec.InterlaceField = 0;
}
else
PrevInterlaced = false;
#endif
Cleanups
2016-08-09 17:34:33 +00:00
int16 *const SoundBuf = spec.SoundBuf + spec.SoundBufSizeALMS * 2;
Get rid of everything Minifen will handle for us
2012-11-16 14:12:25 +00:00
int32 SoundBufSize = spec.SoundBufSize - spec.SoundBufSizeALMS;
const int32 SoundBufMaxSize = spec.SoundBufMaxSize - spec.SoundBufSizeALMS;
Initial commit.
2012-06-03 15:48:14 +00:00
Get rid of everything Minifen will handle for us
2012-11-16 14:12:25 +00:00
spec.SoundBufSize = spec.SoundBufSizeALMS + SoundBufSize;
Initial commit.
2012-06-03 15:48:14 +00:00
Cleanup retro_run
2012-11-21 01:27:23 +00:00
unsigned width = spec.DisplayRect.w;
unsigned height = spec.DisplayRect.h;
Make threading code self-contained
2012-10-20 21:56:43 +00:00
(PSX) Simplify retro_run for PSX - no more hoky manipulation of frame buffer for various screen widths/heights
2013-02-23 23:45:47 +00:00
#if defined(WANT_32BPP)
Fixup WANT_32BPP path
2012-11-21 01:28:26 +00:00
const uint32_t *pix = surf->pixels;
Cleanup retro_run
2012-11-21 01:27:23 +00:00
video_cb(pix, width, height, FB_WIDTH << 2);
(RGB565) Can now use RGB565 color format if frontend supports it (Wswan) Experimental wswan support - not yet working
2012-10-22 12:34:14 +00:00
#elif defined(WANT_16BPP)
Integrated pfce_fast now too - can compile pce_fast now in same repo
2012-10-20 23:47:02 +00:00
const uint16_t *pix = surf->pixels16;
video_cb(pix, width, height, FB_WIDTH << 1);
Make threading code self-contained
2012-10-20 21:56:43 +00:00
#endif
Initial commit.
2012-06-03 15:48:14 +00:00
Update FPS field to reflect empirical testing.
2012-09-20 19:38:19 +00:00
video_frames++;
audio_frames += spec.SoundBufSize;
Initial commit.
2012-06-03 15:48:14 +00:00
audio_batch_cb(spec.SoundBuf, spec.SoundBufSize);
Add first runtime option to Mednafen core - Mednafen PCE_Fast - pce_nospritelimit
2013-04-09 02:05:18 +00:00
bool updated = false;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
check_variables();
Initial commit.
2012-06-03 15:48:14 +00:00
}
void retro_get_system_info(struct retro_system_info *info)
{
memset(info, 0, sizeof(*info));
Setting up fr multiple cores - to be able to compile each core as separate
2012-10-20 21:32:28 +00:00
info->library_name = MEDNAFEN_CORE_NAME;
Report git version with library_version
2016-12-09 23:15:23 +00:00
#ifndef GIT_VERSION
#define GIT_VERSION ""
#endif
info->library_version = MEDNAFEN_CORE_VERSION GIT_VERSION;
Initial commit.
2012-06-03 15:48:14 +00:00
info->need_fullpath = true;
Make threading code self-contained
2012-10-20 21:56:43 +00:00
info->valid_extensions = MEDNAFEN_CORE_EXTENSIONS;
Integrated pfce_fast now too - can compile pce_fast now in same repo
2012-10-20 23:47:02 +00:00
info->block_extract = false;
Initial commit.
2012-06-03 15:48:14 +00:00
}
void retro_get_system_av_info(struct retro_system_av_info *info)
{
memset(info, 0, sizeof(*info));
Fix PAL PSX crashes due to insufficient framebuffer
2013-10-01 12:28:59 +00:00
info->timing.fps = MEDNAFEN_CORE_TIMING_FPS;
Initial commit.
2012-06-03 15:48:14 +00:00
info->timing.sample_rate = 44100;
Make threading code self-contained
2012-10-20 21:56:43 +00:00
info->geometry.base_width = MEDNAFEN_CORE_GEOMETRY_BASE_W;
info->geometry.base_height = MEDNAFEN_CORE_GEOMETRY_BASE_H;
info->geometry.max_width = MEDNAFEN_CORE_GEOMETRY_MAX_W;
info->geometry.max_height = MEDNAFEN_CORE_GEOMETRY_MAX_H;
info->geometry.aspect_ratio = MEDNAFEN_CORE_GEOMETRY_ASPECT_RATIO;
Initial commit.
2012-06-03 15:48:14 +00:00
}
Update FPS field to reflect empirical testing.
2012-09-20 19:38:19 +00:00
void retro_deinit()
{
delete surf;
surf = NULL;
Hook up new logging interface
2013-12-17 01:24:08 +00:00
if (log_cb)
{
log_cb(RETRO_LOG_INFO, "[%s]: Samples / Frame: %.5f\n",
mednafen_core_str, (double)audio_frames / video_frames);
log_cb(RETRO_LOG_INFO, "[%s]: Estimated FPS: %.5f\n",
mednafen_core_str, (double)video_frames * 44100 / audio_frames);
}
Update FPS field to reflect empirical testing.
2012-09-20 19:38:19 +00:00
}
Initial commit.
2012-06-03 15:48:14 +00:00
unsigned retro_get_region(void)
{
Fix PAL PSX crashes due to insufficient framebuffer
2013-10-01 12:28:59 +00:00
return RETRO_REGION_NTSC; // FIXME: Regions for other cores.
Initial commit.
2012-06-03 15:48:14 +00:00
}
unsigned retro_api_version(void)
{
return RETRO_API_VERSION;
}
Add support for regular gamepad input Some games cannot work with dual analog input. (eg. Castlevania - Symphony of the Night). I reuse the mouse device because RetroArch doesn't givce plugins the ability to add "features". I choose specifically the mouse options because it's the only device type that can be specified per input port. The default is now "gamepad" because it's the most compatible option and it is the default in mednafen [1]. [1] http://mednafen.sourceforge.net/documentation/09x/psx.html Signed-off-by: Saggi Mizrahi <ficoos@gmail.com>
2012-07-25 01:17:14 +00:00
void retro_set_controller_port_device(unsigned in_port, unsigned device)
{
}
Initial commit.
2012-06-03 15:48:14 +00:00
void retro_set_environment(retro_environment_t cb)
{
environ_cb = cb;
Add first runtime option to Mednafen core - Mednafen PCE_Fast - pce_nospritelimit
2013-04-09 02:05:18 +00:00
Enable HLE bios by default in gba core, and add option to switch to original bios
2014-03-08 13:32:15 +00:00
static const struct retro_variable vars[] = {
{ "gba_hle", "HLE bios emulation; enabled|disabled" },
{ NULL, NULL },
(NGP) Added NGP core option - Language
2013-05-24 16:59:38 +00:00
};
cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void*)vars);
Initial commit.
2012-06-03 15:48:14 +00:00
}
void retro_set_audio_sample(retro_audio_sample_t cb)
{
audio_cb = cb;
}
void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb)
{
audio_batch_cb = cb;
}
void retro_set_input_poll(retro_input_poll_t cb)
{
input_poll_cb = cb;
}
void retro_set_input_state(retro_input_state_t cb)
{
input_state_cb = cb;
}
void retro_set_video_refresh(retro_video_refresh_t cb)
{
video_cb = cb;
}
Integrated pfce_fast now too - can compile pce_fast now in same repo
2012-10-20 23:47:02 +00:00
static size_t serialize_size;
Initial commit.
2012-06-03 15:48:14 +00:00
size_t retro_serialize_size(void)
{
Savestates work - tested with PCE core
2012-10-21 01:46:12 +00:00
StateMem st;
Update
2017-12-17 17:28:04 +00:00
st.data = NULL;
st.loc = 0;
st.len = 0;
st.malloced = 0;
st.initial_malloc = 0;
Savestates work - tested with PCE core
2012-10-21 01:46:12 +00:00
(State) Use same function signatures as Mednafen mainline
2012-11-14 00:41:02 +00:00
if (!MDFNSS_SaveSM(&st, 0, 0, NULL, NULL, NULL))
Savestates work - tested with PCE core
2012-10-21 01:46:12 +00:00
return 0;
free(st.data);
Update
2017-12-17 17:28:04 +00:00
Savestates work - tested with PCE core
2012-10-21 01:46:12 +00:00
return serialize_size = st.len;
Initial commit.
2012-06-03 15:48:14 +00:00
}
Savestates work - tested with PCE core
2012-10-21 01:46:12 +00:00
bool retro_serialize(void *data, size_t size)
Initial commit.
2012-06-03 15:48:14 +00:00
{
Savestates work - tested with PCE core
2012-10-21 01:46:12 +00:00
StateMem st;
Update
2017-12-17 17:28:04 +00:00
bool ret = false;
uint8_t *_dat = (uint8_t*)malloc(size);
if (!_dat)
return false;
/* Mednafen can realloc the buffer so we need to ensure this is safe. */
st.data = _dat;
st.loc = 0;
st.len = 0;
st.malloced = size;
st.initial_malloc = 0;
ret = MDFNSS_SaveSM(&st, 0, 0, NULL, NULL, NULL);
memcpy(data, st.data, size);
free(st.data);
Savestates work - tested with PCE core
2012-10-21 01:46:12 +00:00
Update
2017-12-17 17:28:04 +00:00
return ret;
Initial commit.
2012-06-03 15:48:14 +00:00
}
Savestates work - tested with PCE core
2012-10-21 01:46:12 +00:00
bool retro_unserialize(const void *data, size_t size)
Initial commit.
2012-06-03 15:48:14 +00:00
{
Savestates work - tested with PCE core
2012-10-21 01:46:12 +00:00
StateMem st;
memset(&st, 0, sizeof(st));
st.data = (uint8_t*)data;
st.len = size;
(State) Use same function signatures as Mednafen mainline
2012-11-14 00:41:02 +00:00
return MDFNSS_LoadSM(&st, 0, 0);
Initial commit.
2012-06-03 15:48:14 +00:00
}
void *retro_get_memory_data(unsigned)
{
return NULL;
}
size_t retro_get_memory_size(unsigned)
{
return 0;
}
void retro_cheat_reset(void)
{}
void retro_cheat_set(unsigned, bool, const char *)
{}
Rewrite code - threads.c updated
2014-06-21 01:36:12 +00:00
#ifdef _WIN32
static void sanitize_path(std::string &path)
{
size_t size = path.size();
for (size_t i = 0; i < size; i++)
if (path[i] == '/')
path[i] = '\\';
}
#endif
// Use a simpler approach to make sure that things go right for libretro.
std::string MDFN_MakeFName(MakeFName_Type type, int id1, const char *cd1)
{
char slash;
#ifdef _WIN32
slash = '\\';
#else
slash = '/';
#endif
std::string ret;
switch (type)
{
case MDFNMKF_SAV:
ret = retro_save_directory +slash + retro_base_name +
std::string(".") +
#ifndef _XBOX
md5_context::asciistr(MDFNGameInfo->MD5, 0) + std::string(".") +
#endif
std::string(cd1);
break;
case MDFNMKF_FIRMWARE:
ret = retro_base_directory + slash + std::string(cd1);
#ifdef _WIN32
sanitize_path(ret); // Because Windows path handling is mongoloid.
#endif
break;
default:
break;
}
if (log_cb)
log_cb(RETRO_LOG_INFO, "MDFN_MakeFName: %s\n", ret.c_str());
return ret;
}
void MDFND_DispMessage(unsigned char *str)
{
if (log_cb)
log_cb(RETRO_LOG_INFO, "%s\n", str);
}
void MDFND_Message(const char *str)
{
if (log_cb)
log_cb(RETRO_LOG_INFO, "%s\n", str);
}
void MDFND_MidSync(const EmulateSpecStruct *)
{}
void MDFN_MidLineUpdate(EmulateSpecStruct *espec, int y)
{
//MDFND_MidLineUpdate(espec, y);
}
void MDFND_PrintError(const char* err)
{
if (log_cb)
log_cb(RETRO_LOG_ERROR, "%s\n", err);
}
Cleanups
2016-08-09 17:34:33 +00:00
MDFNGI *MDFNGameInfo = NULL;
#if defined(WANT_NES_EMU)
extern MDFNGI EmulatedNES;
#define MDFNGI_CORE &EmulatedNES
#elif defined WANT_SNES_EMU
extern MDFNGI EmulatedSNES;
#define MDFNGI_CORE &EmulatedSNES
extern MDFNGI EmulatedGB;
#elif defined WANT_GB_EMU
#define MDFNGI_CORE &EmulatedGB
#elif defined WANT_GBA_EMU
extern MDFNGI EmulatedGBA;
#define MDFNGI_CORE &EmulatedGBA
#elif defined WANT_PCE_EMU
extern MDFNGI EmulatedPCE;
#define MDFNGI_CORE &EmulatedPCE
#elif defined WANT_LYNX_EMU
extern MDFNGI EmulatedLynx;
#define MDFNGI_CORE &EmulatedLynx
#elif defined WANT_MD_EMU
extern MDFNGI EmulatedMD;
#define MDFNGI_CORE &EmulatedMD
#elif defined WANT_PCFX_EMU
extern MDFNGI EmulatedPCFX;
#define MDFNGI_CORE &EmulatedPCFX
#elif defined WANT_SMS_EMU
extern MDFNGI EmulatedSMS;
#define MDFNGI_CORE &EmulatedSMS
#elif defined(WANT_SMS_EMU) && defined(WANT_GG_EMU)
extern MDFNGI EmulatedGG;
#define MDFNGI_CORE &EmulatedGG
#endif
/* forward declarations */
extern void MDFND_DispMessage(unsigned char *str);
void MDFN_DispMessage(const char *format, ...)
{
va_list ap;
va_start(ap,format);
char *msg = new char[4096];
vsnprintf(msg, 4096, format,ap);
va_end(ap);
MDFND_DispMessage((UTF8*)msg);
}
void MDFN_ResetMessages(void)
{
MDFND_DispMessage(NULL);
}
MDFNGI *MDFNI_LoadGame(const char *force_module, const char *name)
{
MDFNFILE GameFile;
std::vector<FileExtensionSpecStruct> valid_iae;
MDFNGameInfo = MDFNGI_CORE;
MDFN_printf(_("Loading %s...\n"),name);
MDFN_indent(1);
// Construct a NULL-delimited list of known file extensions for MDFN_fopen()
const FileExtensionSpecStruct *curexts = KnownExtensions;
while(curexts->extension && curexts->description)
{
valid_iae.push_back(*curexts);
curexts++;
}
if(!GameFile.Open(name, &valid_iae[0], _("game")))
{
MDFNGameInfo = NULL;
return 0;
}
MDFN_printf(_("Using module: gba\n\n"));
MDFN_indent(1);
//
// Load per-game settings
//
// Maybe we should make a "pgcfg" subdir, and automatically load all files in it?
// End load per-game settings
//
if(Load(name, &GameFile) <= 0)
{
GameFile.Close();
MDFN_indent(-2);
MDFNGameInfo = NULL;
return(0);
}
MDFN_LoadGameCheats(NULL);
MDFNMP_InstallReadPatches();
MDFN_ResetMessages(); // Save state, status messages, etc.
MDFN_indent(-2);
return(MDFNGameInfo);
}
void MDFNI_CloseGame(void)
{
if(!MDFNGameInfo)
return;
MDFN_FlushGameCheats(0);
CloseGame();
MDFNMP_Kill();
MDFNGameInfo = NULL;
}
bool MDFNI_InitializeModule(void)
{
return(1);
}
int MDFNI_Initialize(const char *basedir)
{
return(1);
}
static int curindent = 0;
void MDFN_indent(int indent)
{
curindent += indent;
}
static uint8 lastchar = 0;
void MDFN_printf(const char *format, ...)
{
char *format_temp;
char *temp;
unsigned int x, newlen;
va_list ap;
va_start(ap,format);
// First, determine how large our format_temp buffer needs to be.
uint8 lastchar_backup = lastchar; // Save lastchar!
for(newlen=x=0;x<strlen(format);x++)
{
if(lastchar == '\n' && format[x] != '\n')
{
int y;
for(y=0;y<curindent;y++)
newlen++;
}
newlen++;
lastchar = format[x];
}
format_temp = (char *)malloc(newlen + 1); // Length + NULL character, duh
// Now, construct our format_temp string
lastchar = lastchar_backup; // Restore lastchar
for(newlen=x=0;x<strlen(format);x++)
{
if(lastchar == '\n' && format[x] != '\n')
{
int y;
for(y=0;y<curindent;y++)
format_temp[newlen++] = ' ';
}
format_temp[newlen++] = format[x];
lastchar = format[x];
}
format_temp[newlen] = 0;
temp = new char[4096];
vsnprintf(temp, 4096, format_temp, ap);
free(format_temp);
MDFND_Message(temp);
free(temp);
va_end(ap);
}
void MDFN_PrintError(const char *format, ...)
{
char *temp;
va_list ap;
va_start(ap, format);
temp = new char[4096];
vsnprintf(temp, 4096, format, ap);
MDFND_PrintError(temp);
free(temp);
va_end(ap);
}
void MDFN_DebugPrintReal(const char *file, const int line, const char *format, ...)
{
char *temp;
va_list ap;
va_start(ap, format);
temp = new char[4096];
vsnprintf(temp, 4096, format, ap);
fprintf(stderr, "%s:%d %s\n", file, line, temp);
free(temp);
va_end(ap);
}
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