void SnesEmu::sl() {
if (emsl.save) {
S9xSRTCPreSaveState();
} else {
S9xReset();
}
snesCpuSl();
snesMemSl();
snesPpuSl();
snesDmaSl();
snesSoundSl();
snesSpuSl();
if (!emsl.save) {
S9xFixSoundAfterSnapshotLoad();
S9xSetPCBase(ICPU.ShiftedPB + Registers.PC);
S9xReschedule();
S9xSRTCPostLoadState();
if (Settings.SDD1)
S9xSDD1PostLoadState();
S9xSetSoundMute(FALSE);
}
}
static int Unfreeze()
{
// notaz: overflowing the damn Symbian stack again
char buffer [16];
char rom_filename [512];
int result;
int version;
unsigned int len = strlen(SNAPSHOT_MAGIC) + 1 + 4 + 1;
if (statef_read(buffer, len) != (int)len)
return (WRONG_FORMAT);
if (strncmp(buffer, SNAPSHOT_MAGIC, strlen(SNAPSHOT_MAGIC)) != 0)
return (WRONG_FORMAT);
if ((version = atoi(&buffer [strlen(SNAPSHOT_MAGIC) + 1])) > SNAPSHOT_VERSION)
return (WRONG_VERSION);
if ((result = UnfreezeBlock("NAM", (uint8*) rom_filename, 512)) != SUCCESS)
return (result);
if (strcasecmp(rom_filename, Memory.ROMFilename) != 0 &&
strcasecmp(S9xBasename(rom_filename), S9xBasename(Memory.ROMFilename)) != 0)
{
S9xMessage(S9X_WARNING, S9X_FREEZE_ROM_NAME,
"Current loaded ROM image doesn't match that required by freeze-game file.");
}
uint32 old_flags = CPU.Flags;
#ifdef USE_SA1
uint32 sa1_old_flags = SA1.Flags;
#endif
S9xReset();
S9xSetSoundMute(TRUE);
if ((result = UnfreezeStruct("CPU", &CPU, SnapCPU,
COUNT(SnapCPU))) != SUCCESS)
return (result);
FixROMSpeed();
CPU.Flags |= old_flags & (DEBUG_MODE_FLAG | TRACE_FLAG |
SINGLE_STEP_FLAG | FRAME_ADVANCE_FLAG);
if ((result = UnfreezeStruct("REG", &Registers, SnapRegisters, COUNT(SnapRegisters))) != SUCCESS)
return (result);
if ((result = UnfreezeStruct("PPU", &PPU, SnapPPU, COUNT(SnapPPU))) != SUCCESS)
return (result);
IPPU.ColorsChanged = TRUE;
IPPU.OBJChanged = TRUE;
CPU.InDMA = FALSE;
// Restore colors from PPU
unsigned int i;
for (i = 0; i < 256; i++)
{
IPPU.Red[i] = PPU.CGDATA[i] & 0x1f;
IPPU.Green[i] = (PPU.CGDATA[i] >> 5) & 0x1f;
IPPU.Blue[i] = (PPU.CGDATA[i] >> 10) & 0x1f;
}
S9xFixColourBrightness();
IPPU.RenderThisFrame = FALSE;
if ((result = UnfreezeStruct("DMA", DMA, SnapDMA,
COUNT(SnapDMA))) != SUCCESS)
return (result);
if ((result = UnfreezeBlock("VRA", Memory.VRAM, 0x10000)) != SUCCESS)
return (result);
if ((result = UnfreezeBlock("RAM", Memory.RAM, 0x20000)) != SUCCESS)
return (result);
if ((result = UnfreezeBlock("SRA", SRAM, 0x20000)) != SUCCESS)
return (result);
if ((result = UnfreezeBlock("FIL", Memory.FillRAM, 0x8000)) != SUCCESS)
return (result);
// Restore graphics shadow registers
GFX.r212c_s = Memory.FillRAM[0x212c];
GFX.r212d_s = Memory.FillRAM[0x212d];
GFX.r212e_s = Memory.FillRAM[0x212e];
GFX.r212f_s = Memory.FillRAM[0x212f];
GFX.r2130_s = Memory.FillRAM[0x2130];
GFX.r2131_s = Memory.FillRAM[0x2131];
if (UnfreezeStruct("APU", &APU, SnapAPU, COUNT(SnapAPU)) == SUCCESS)
{
SAPURegisters spcregs;
if ((result = UnfreezeStruct("ARE", &spcregs, SnapAPURegisters,
COUNT(SnapAPURegisters))) != SUCCESS)
return (result);
// reload all SPC700 regs from savestate compatible struct
IAPU.P = spcregs.P;
IAPU.YA.W = spcregs.YA.W;
IAPU.X = spcregs.X;
IAPU.S = spcregs.S;
IAPU.PC = IAPU.RAM + spcregs.PC;
if ((result = UnfreezeBlock("ARA", IAPU.RAM, 0x10000)) != SUCCESS)
return (result);
if ((result = UnfreezeStruct("SOU", &SoundData, SnapSoundData,
COUNT(SnapSoundData))) != SUCCESS)
return (result);
// notaz: just to be sure
int u;
for (u = 0; u < 8; u++)
{
SoundData.channels[u].env_ind_attack &= 0xf;
SoundData.channels[u].env_ind_decay &= 0x7;
SoundData.channels[u].env_ind_sustain &= 0x1f;
}
S9xSetSoundMute(FALSE);
S9xAPUUnpackStatus();
if (APUCheckDirectPage())
IAPU.DirectPage = IAPU.RAM + 0x100;
else
IAPU.DirectPage = IAPU.RAM;
Settings.APUEnabled = TRUE;
/*IAPU.APUExecuting*/CPU.APU_APUExecuting = TRUE;
}
else
{
Settings.APUEnabled = FALSE;
/*IAPU.APUExecuting*/CPU.APU_APUExecuting = FALSE;
S9xSetSoundMute(TRUE);
}
#ifdef USE_SA1
if ((result = UnfreezeStruct("SA1", &SA1, SnapSA1,
COUNT(SnapSA1))) == SUCCESS)
{
if ((result = UnfreezeStruct("SAR", &SA1Registers,
SnapSA1Registers, COUNT(SnapSA1Registers))) != SUCCESS)
return (result);
S9xFixSA1AfterSnapshotLoad();
SA1.Flags |= sa1_old_flags & (TRACE_FLAG);
}
#endif
S9xFixSoundAfterSnapshotLoad();
ICPU.ShiftedPB = Registers.PB << 16;
ICPU.ShiftedDB = Registers.DB << 16;
S9xSetPCBase(ICPU.ShiftedPB + Registers.PC);
#ifndef ASMCPU
S9xUnpackStatus(); // not needed
S9xFixCycles(); // also not needed?
#endif
S9xReschedule();
S9xSRTCPostLoadState();
if (Settings.SDD1) S9xSDD1PostLoadState();
return (SUCCESS);
}
