void HuC_LoadCD(const std::string& bios_path)
{
static const FileExtensionSpecStruct KnownBIOSExtensions[] =
{
{ ".pce", gettext_noop("PC Engine ROM Image") },
{ ".bin", gettext_noop("PC Engine ROM Image") },
{ ".bios", gettext_noop("BIOS Image") },
{ NULL, NULL }
};
try
{
MDFNFILE fp(bios_path.c_str(), KnownBIOSExtensions, _("CD BIOS"));
memset(ROMSpace, 0xFF, 262144);
if(fp.size() & 512)
fp.seek(512, SEEK_SET);
fp.read(ROMSpace, 262144);
fp.Close();
PCE_IsCD = 1;
PCE_InitCD();
MDFN_printf(_("Arcade Card Emulation: %s\n"), PCE_ACEnabled ? _("Enabled") : _("Disabled"));
for(int x = 0; x < 0x40; x++)
{
HuCPUFastMap[x] = ROMSpace;
PCERead[x] = HuCRead;
}
for(int x = 0x68; x < 0x88; x++)
{
HuCPUFastMap[x] = ROMSpace;
PCERead[x] = HuCRead;
PCEWrite[x] = HuCRAMWrite;
}
PCEWrite[0x80] = HuCRAMWriteCDSpecial; // Hyper Dyne Special hack
MDFNMP_AddRAM(262144, 0x68 * 8192, ROMSpace + 0x68 * 8192);
if(PCE_ACEnabled)
{
arcade_card = new ArcadeCard();
for(int x = 0x40; x < 0x44; x++)
{
HuCPUFastMap[x] = NULL;
PCERead[x] = ACPhysRead;
PCEWrite[x] = ACPhysWrite;
}
}
memset(SaveRAM, 0x00, 2048);
memcpy(SaveRAM, BRAM_Init_String, 8); // So users don't have to manually intialize the file cabinet
// in the CD BIOS screen.
LoadSaveMemory(MDFN_MakeFName(MDFNMKF_SAV, 0, "sav"), SaveRAM, 2048);
PCEWrite[0xF7] = SaveRAMWrite;
PCERead[0xF7] = SaveRAMRead;
MDFNMP_AddRAM(2048, 0xF7 * 8192, SaveRAM);
}
catch(...)
{
Cleanup();
throw;
}
}
uint32 HuC_Load(MDFNFILE* fp, bool DisableBRAM, SysCardType syscard)
{
uint32 crc = 0;
const uint32 sf2_threshold = 2048 * 1024;
bool sf2_mapper = FALSE;
bool mcg_mapper = FALSE;
bool UseBRAM = FALSE;
try
{
uint64 len, m_len;
len = fp->size();
if(len & 512) // Skip copier header.
{
len &= ~512;
fp->seek(512, SEEK_SET);
}
m_len = (len + 8191) &~ 8191;
if(len >= 8192)
{
uint8 buf[8192];
fp->read(buf, 8192);
if(!memcmp(buf + 0x1FD0, "MCGENJIN", 8))
mcg_mapper = TRUE;
fp->seek(-8192, SEEK_CUR); // Seek backwards so we don't undo skip copier header.
}
if(!syscard && m_len >= sf2_threshold && !mcg_mapper)
{
sf2_mapper = TRUE;
// Only used the "extended" SF2 mapper if it's considerably larger than the normal SF2 mapper size.
if(m_len < (512 * 1024 * 6))
m_len = 512 * 1024 * 5;
else
m_len = round_up_pow2(m_len - 512 * 1024) + 512 * 1024;
if(m_len > 8912896)
throw MDFN_Error(0, _("ROM image is too large for extended SF2 mapper!"));
HuCSF2BankMask = ((m_len - 512 * 1024) / (512 * 1024)) - 1;
//printf("%d %d, %02x\n", len, m_len, HuCSF2BankMask);
}
IsPopulous = 0;
PCE_IsCD = 0;
if(syscard != SYSCARD_NONE)
{
CDRAM = new uint8[8 * 8192];
for(int x = 0x80; x < 0x88; x++)
{
ROMMap[x] = &CDRAM[(x - 0x80) * 8192] - x * 8192;
HuCPU.SetFastRead(x, ROMMap[x] + x * 8192);
HuCPU.SetReadHandler(x, CDRAMRead);
HuCPU.SetWriteHandler(x, CDRAMWrite);
}
MDFNMP_AddRAM(8 * 8192, 0x80 * 8192, CDRAM);
UseBRAM = TRUE;
}
if(mcg_mapper)
{
mcg = new MCGenjin(fp);
for(unsigned i = 0; i < 128; i++)
{
HuCPU.SetFastRead(i, NULL);
HuCPU.SetReadHandler(i, MCG_ReadHandler);
HuCPU.SetWriteHandler(i, MCG_WriteHandler);
}
for(unsigned i = 0; i < mcg->GetNVPDC(); i++)
{
uint32 nvs = mcg->GetNVSize(i);
if(nvs)
{
char buf[32];
std::vector<uint8> tmp_buf;
tmp_buf.resize(nvs);
trio_snprintf(buf, sizeof(buf), "mg%d", i);
LoadSaveMemory(MDFN_MakeFName(MDFNMKF_SAV, 0, buf), &tmp_buf[0], tmp_buf.size(), false);
mcg->WriteNV(i, &tmp_buf[0], 0, tmp_buf.size());
}
}
goto BRAM_Init; // SO EVIL YES EVVIIIIIL(FIXME)
}
HuCROM = new uint8[m_len];
memset(HuCROM, 0xFF, m_len);
fp->read(HuCROM, std::min<uint64>(m_len, len));
crc = crc32(0, HuCROM, std::min<uint64>(m_len, len));
if(syscard == SYSCARD_NONE)
{
md5_context md5;
md5.starts();
md5.update(HuCROM, std::min<uint64>(m_len, len));
md5.finish(MDFNGameInfo->MD5);
MDFN_printf(_("ROM: %lluKiB\n"), (unsigned long long)(std::min<uint64>(m_len, len) / 1024));
MDFN_printf(_("ROM CRC32: 0x%08x\n"), crc);
MDFN_printf(_("ROM MD5: 0x%s\n"), md5_context::asciistr(MDFNGameInfo->MD5, 0).c_str());
}
if(m_len == 0x60000)
{
for(int x = 0; x < 128; x++)
{
ROMMap[x] = &HuCROM[(x & 0x1F) * 8192] - x * 8192;
HuCPU.SetFastRead(x, ROMMap[x] + x * 8192);
HuCPU.SetReadHandler(x, HuCRead);
}
for(int x = 64; x < 128; x++)
{
ROMMap[x] = &HuCROM[((x & 0xF) + 32) * 8192] - x * 8192;
HuCPU.SetFastRead(x, ROMMap[x] + x * 8192);
HuCPU.SetReadHandler(x, HuCRead);
}
}
else if(m_len == 0x80000)
{
for(int x = 0; x < 64; x++)
{
ROMMap[x] = &HuCROM[(x & 0x3F) * 8192] - x * 8192;
HuCPU.SetFastRead(x, ROMMap[x] + x * 8192);
HuCPU.SetReadHandler(x, HuCRead);
}
for(int x = 64; x < 128; x++)
{
ROMMap[x] = &HuCROM[((x & 0x1F) + 32) * 8192] - x * 8192;
HuCPU.SetFastRead(x, ROMMap[x] + x * 8192);
HuCPU.SetReadHandler(x, HuCRead);
}
}
else
{
for(int x = 0; x < 128; x++)
{
uint8 bank = x % (m_len / 8192);
ROMMap[x] = &HuCROM[bank * 8192] - x * 8192;
HuCPU.SetFastRead(x, ROMMap[x] + x * 8192);
HuCPU.SetReadHandler(x, HuCRead);
}
}
if(syscard)
{
if(syscard == SYSCARD_3 || syscard == SYSCARD_ARCADE)
{
SysCardRAM = new uint8[24 * 8192];
for(int x = 0x68; x < 0x80; x++)
{
ROMMap[x] = &SysCardRAM[(x - 0x68) * 8192] - x * 8192;
HuCPU.SetFastRead(x, ROMMap[x] + x * 8192);
HuCPU.SetReadHandler(x, SysCardRAMRead);
HuCPU.SetWriteHandler(x, SysCardRAMWrite);
}
MDFNMP_AddRAM(24 * 8192, 0x68 * 8192, SysCardRAM);
}
if(syscard == SYSCARD_ARCADE)
{
arcade_card = new ArcadeCard();
for(int x = 0x40; x < 0x44; x++)
{
ROMMap[x] = NULL;
HuCPU.SetFastRead(x, NULL);
HuCPU.SetReadHandler(x, AC_PhysRead);
HuCPU.SetWriteHandler(x, AC_PhysWrite);
}
}
}
else
{
if(!memcmp(HuCROM + 0x1F26, "POPULOUS", strlen("POPULOUS")))
{
PopRAM = new uint8[32768];
memset(PopRAM, 0xFF, 32768);
LoadSaveMemory(MDFN_MakeFName(MDFNMKF_SAV, 0, "sav"), PopRAM, 32768);
IsPopulous = 1;
MDFN_printf("Populous\n");
for(int x = 0x40; x < 0x44; x++)
{
ROMMap[x] = &PopRAM[(x & 3) * 8192] - x * 8192;
HuCPU.SetFastRead(x, ROMMap[x] + x * 8192);
HuCPU.SetReadHandler(x, HuCRead);
HuCPU.SetWriteHandler(x, HuCRAMWrite);
}
MDFNMP_AddRAM(32768, 0x40 * 8192, PopRAM);
}
else if(crc == 0x34dc65c4) // Tsushin Booster
{
TsushinRAM = new uint8[0x8000];
memset(TsushinRAM, 0xFF, 0x8000);
LoadSaveMemory(MDFN_MakeFName(MDFNMKF_SAV, 0, "sav"), TsushinRAM, 32768);
IsTsushin = 1;
MDFN_printf("Tsushin Booster\n");
for(int x = 0x88; x < 0x8C; x++)
{
ROMMap[x] = &TsushinRAM[(x & 3) * 8192] - x * 8192;
HuCPU.SetFastRead(x, ROMMap[x] + x * 8192);
HuCPU.SetReadHandler(x, HuCRead);
HuCPU.SetWriteHandler(x, HuCRAMWrite);
}
MDFNMP_AddRAM(32768, 0x88 * 8192, TsushinRAM);
}
else
UseBRAM = TRUE;
// 0x1A558
if(sf2_mapper)
{
for(int x = 0x20; x < 0x40; x++)
HuCPU.SetReadHandler(x, HuCSF2ReadLow);
for(int x = 0x40; x < 0x80; x++)
{
HuCPU.SetFastRead(x, NULL); // Make sure our reads go through our read function, and not a table lookup
HuCPU.SetReadHandler(x, HuCSF2Read);
}
HuCPU.SetWriteHandler(0, HuCSF2Write);
MDFN_printf("Street Fighter 2 Mapper\n");
HuCSF2Latch = 0;
}
} // end else to if(syscard)
BRAM_Init:
BRAM_Disabled = DisableBRAM;
if(BRAM_Disabled)
UseBRAM = false;
if(UseBRAM)
{
// Initialize BRAM here so users don't have to manually intialize the file cabinet
// in the CD BIOS screen.
memset(SaveRAM, 0x00, 2048);
memcpy(SaveRAM, BRAM_Init_String, 8);
LoadSaveMemory(MDFN_MakeFName(MDFNMKF_SAV, 0, "sav"), SaveRAM, 2048);
HuCPU.SetWriteHandler(0xF7, SaveRAMWrite);
HuCPU.SetReadHandler(0xF7, SaveRAMRead);
MDFNMP_AddRAM(2048, 0xF7 * 8192, SaveRAM);
}
}
catch(...)
{
Cleanup();
throw;
}
return crc;
}
uint32 HuC_Load(MDFNFILE* fp)
{
uint32 crc = 0;
try
{
uint32 sf2_threshold = 2048 * 1024;
uint32 sf2_required_size = 2048 * 1024 + 512 * 1024;
uint64 len = fp->size();
uint64 m_len = (len + 8191)&~8191;
bool sf2_mapper = FALSE;
if(m_len >= sf2_threshold)
{
sf2_mapper = TRUE;
if(m_len != sf2_required_size)
m_len = sf2_required_size;
}
IsPopulous = 0;
PCE_IsCD = 0;
HuCROM = (uint8 *)MDFN_malloc_T(m_len, _("HuCard ROM"));
memset(HuCROM, 0xFF, m_len);
fp->read(HuCROM, std::min<uint64>(m_len, len));
md5_context md5;
md5.starts();
md5.update(HuCROM, std::min<uint64>(m_len, len));
md5.finish(MDFNGameInfo->MD5);
crc = crc32(0, HuCROM, std::min<uint64>(m_len, len));
MDFN_printf(_("ROM: %lluKiB\n"), (unsigned long long)(std::min<uint64>(m_len, len) / 1024));
MDFN_printf(_("ROM CRC32: 0x%04x\n"), crc);
MDFN_printf(_("ROM MD5: 0x%s\n"), md5_context::asciistr(MDFNGameInfo->MD5, 0).c_str());
memset(ROMSpace, 0xFF, 0x88 * 8192 + 8192);
if(m_len == 0x60000)
{
memcpy(ROMSpace + 0x00 * 8192, HuCROM, 0x20 * 8192);
memcpy(ROMSpace + 0x20 * 8192, HuCROM, 0x20 * 8192);
memcpy(ROMSpace + 0x40 * 8192, HuCROM + 0x20 * 8192, 0x10 * 8192);
memcpy(ROMSpace + 0x50 * 8192, HuCROM + 0x20 * 8192, 0x10 * 8192);
memcpy(ROMSpace + 0x60 * 8192, HuCROM + 0x20 * 8192, 0x10 * 8192);
memcpy(ROMSpace + 0x70 * 8192, HuCROM + 0x20 * 8192, 0x10 * 8192);
}
else if(m_len == 0x80000)
{
memcpy(ROMSpace + 0x00 * 8192, HuCROM, 0x40 * 8192);
memcpy(ROMSpace + 0x40 * 8192, HuCROM + 0x20 * 8192, 0x20 * 8192);
memcpy(ROMSpace + 0x60 * 8192, HuCROM + 0x20 * 8192, 0x20 * 8192);
}
else
{
memcpy(ROMSpace + 0x00 * 8192, HuCROM, (m_len < 1024 * 1024) ? m_len : 1024 * 1024);
}
for(int x = 0x00; x < 0x80; x++)
{
HuCPUFastMap[x] = ROMSpace;
PCERead[x] = HuCRead;
}
if(!memcmp(HuCROM + 0x1F26, "POPULOUS", strlen("POPULOUS")))
{
uint8 *PopRAM = ROMSpace + 0x40 * 8192;
memset(PopRAM, 0xFF, 32768);
LoadSaveMemory(MDFN_MakeFName(MDFNMKF_SAV, 0, "sav"), PopRAM, 32768);
IsPopulous = 1;
MDFN_printf("Populous\n");
for(int x = 0x40; x < 0x44; x++)
{
HuCPUFastMap[x] = &PopRAM[(x & 3) * 8192] - x * 8192;
PCERead[x] = HuCRead;
PCEWrite[x] = HuCRAMWrite;
}
MDFNMP_AddRAM(32768, 0x40 * 8192, PopRAM);
}
else
{
memset(SaveRAM, 0x00, 2048);
memcpy(SaveRAM, BRAM_Init_String, 8); // So users don't have to manually intialize the file cabinet
// in the CD BIOS screen.
LoadSaveMemory(MDFN_MakeFName(MDFNMKF_SAV, 0, "sav"), SaveRAM, 2048);
PCEWrite[0xF7] = SaveRAMWrite;
PCERead[0xF7] = SaveRAMRead;
MDFNMP_AddRAM(2048, 0xF7 * 8192, SaveRAM);
}
// 0x1A558
//if(len >= 0x20000 && !memcmp(HuCROM + 0x1A558, "STREET FIGHTER#", strlen("STREET FIGHTER#")))
if(sf2_mapper)
{
for(int x = 0x40; x < 0x80; x++)
{
// FIXME: PCE_FAST
HuCPUFastMap[x] = NULL; // Make sure our reads go through our read function, and not a table lookup
PCERead[x] = HuCSF2Read;
}
PCEWrite[0] = HuCSF2Write;
MDFN_printf("Street Fighter 2 Mapper\n");
HuCSF2Latch = 0;
}
}
catch(...)
{
Cleanup();
throw;
}
return crc;
}
