static MDFN_COLD bool Load(const uint8* romdata, int32 romlength)
{
const uint64 fp_size = romlength;
if (fp_size > 1024 * 1024 * 8) // 4MiB maximum ROM size, 2* to be a little tolerant of garbage.
return false;
//throw MDFN_Error(0, _("NGP/NGPC ROM image is too large."));
ngpc_rom.length = fp_size;
ngpc_rom.data = (uint8*)alloc_plain(ngpc_rom.length);
memcpy(ngpc_rom.data, romdata, romlength);
rom_loaded();
//if (!FLASH_LoadNV())
// return false;
//MDFNMP_Init(1024, 1024 * 1024 * 16 / 1024);
NGPGfx = new NGPGFX_CLASS();
//MDFNGameInfo->fps = (uint32)((uint64)6144000 * 65536 * 256 / 515 / 198); // 3072000 * 2 * 10000 / 515 / 198
MDFNNGPCSOUND_Init();
//MDFNMP_AddRAM(16384, 0x4000, CPUExRAM);
SetFRM(); // Set up fast read memory mapping
bios_install();
//main_timeaccum = 0;
z80_runtime = 0;
reset();
MDFNNGPC_SetSoundRate(44100);
return true;
}
static void Emulate(EmulateSpecStruct *espec)
{
bool MeowMeow = 0;
espec->DisplayRect.x = 0;
espec->DisplayRect.y = 0;
espec->DisplayRect.w = 160;
espec->DisplayRect.h = 152;
if(espec->VideoFormatChanged)
NGPGfx->set_pixel_format(espec->surface->format);
if(espec->SoundFormatChanged)
MDFNNGPC_SetSoundRate(espec->SoundRate);
NGPJoyLatch = *chee;
storeB(0x6F82, *chee);
MDFNMP_ApplyPeriodicCheats();
ngpc_soundTS = 0;
NGPFrameSkip = espec->skip;
do
{
#if 0
int32 timetime;
if(main_timeaccum == 0)
{
main_timeaccum = TLCS900h_interpret();
if(main_timeaccum > 255)
{
main_timeaccum = 255;
printf("%d\n", main_timeaccum);
}
}
timetime = std::min<int32>(main_timeaccum, 24);
main_timeaccum -= timetime;
#else
#if 0
uint32 old_pc = pc;
{
uint32 xix = gpr[0];
uint32 xiz = gpr[2];
printf("%08x %08x --- %s\n", xix, xiz, TLCS900h_disassemble());
}
pc = old_pc;
#endif
int32 timetime = (uint8)TLCS900h_interpret(); // This is sooo not right, but it's replicating the old behavior(which is necessary
// now since I've fixed the TLCS900h core and other places not to truncate cycle counts
// internally to 8-bits). Switch to the #if 0'd block of code once we fix cycle counts in the
// TLCS900h core(they're all sorts of messed up), and investigate if certain long
// instructions are interruptable(by interrupts) and later resumable, RE Rockman Battle
// & Fighters voice sample playback.
#endif
//if(timetime > 255)
// printf("%d\n", timetime);
// Note: Don't call updateTimers with a time/tick/cycle/whatever count greater than 255.
MeowMeow |= updateTimers(espec->surface, timetime);
z80_runtime += timetime;
while(z80_runtime > 0)
{
int z80rantime = Z80_RunOP();
if(z80rantime < 0) // Z80 inactive, so take up all run time!
{
z80_runtime = 0;
break;
}
z80_runtime -= z80rantime << 1;
}
} while(!MeowMeow);
espec->MasterCycles = ngpc_soundTS;
espec->SoundBufSize = MDFNNGPCSOUND_Flush(espec->SoundBuf, espec->SoundBufMaxSize);
}
