X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=fceu.git;a=blobdiff_plain;f=fce.c;h=64bb8dcdde29626b1cd1b66ee6b49ce83dee24c3;hp=42a4d76ef49a0433145acde0470902eaad31ea37;hb=92e249b10ad9e479eddb18974555366dba725ef3;hpb=9115e7d2b5e5b8dc00774fe92db97f1d02b2fee1 diff --git a/fce.c b/fce.c index 42a4d76..64bb8dc 100644 --- a/fce.c +++ b/fce.c @@ -51,6 +51,11 @@ #define Pal (PALRAM) +#ifdef DEBUG_ASM_6502 +extern int cpu_repeat; +extern int cpu_lastval; +#endif + static void (*RefreshLine)(uint8 *P, uint32 vofs) = NULL; static void PRefreshLine(void); @@ -98,6 +103,71 @@ static readfunc *AReadG; static writefunc *BWriteG; static int RWWrap=0; +#ifdef ASM_6502 +static void asmcpu_update(int32 cycles) +{ + // timestamp.. + timestamp += ((cycles >> 4) * 43) >> 7; // aproximating /= 48 + + // some code from x6502.c + fhcnt-=cycles; + if(fhcnt<=0) + { + FrameSoundUpdate(); + fhcnt+=fhinc; + } + + if(PCMIRQCount>0) + { + PCMIRQCount-=cycles; + if(PCMIRQCount<=0) + { + vdis=1; + if((PSG[0x10]&0x80) && !(PSG[0x10]&0x40)) + { + extern uint8 SIRQStat; + SIRQStat|=0x80; + X6502_IRQBegin(FCEU_IQDPCM); + } + } + } +} + +void asmcpu_unpack(void) +{ + nes_registers[0] = X.A << 24; + nes_registers[1] = X.X; + nes_registers[2] = X.Y; + pc_base = 0; + nes_registers[3] = X.PC; + X6502_rebase_a(); + nes_registers[4] = X.S << 24; + nes_registers[4]|= X.IRQlow << 8; + nes_registers[7] = (uint32)X.count; + + // NVUB DIZC + nes_registers[4]|= X.P & 0x5d; + nes_registers[5] = X.P << 24; // N + if (!(X.P&0x02)) nes_registers[5] |= 1; // Z +} + +void asmcpu_pack(void) +{ + X.A = nes_registers[0] >> 24; + X.X = nes_registers[1]; + X.Y = nes_registers[2]; + X.PC= nes_registers[3] - pc_base; + X.S = nes_registers[4] >> 24; + X.IRQlow = nes_registers[4] >> 8; + X.count = (int32) nes_registers[7]; + + // NVUB DIZC + X.P = nes_registers[4] & 0x5d; + if ( nes_registers[5]&0x80000000) X.P |= 0x80; // N + if (!(nes_registers[5]&0x000000ff)) X.P |= 0x02; // Z +} +#endif + DECLFW(BNull) { @@ -203,12 +273,13 @@ uint32 TempAddr,RefreshAddr; /* scanline is equal to the current visible scanline we're on. */ int scanline; -static uint32 scanlines_per_frame; uint8 GameMemBlock[131072] __attribute__ ((aligned (4))); uint8 NTARAM[0x800] __attribute__ ((aligned (4))); uint8 PALRAM[0x20] __attribute__ ((aligned (4))); +#if !defined(ASM_6502) || defined(DEBUG_ASM_6502) uint8 RAM[0x800] __attribute__ ((aligned (4))); +#endif uint8 PPU[4]; uint8 PPUSPL; @@ -243,9 +314,15 @@ static DECLFR(ARAMH) static DECLFR(A2002) { uint8 ret; +#ifdef DEBUG_ASM_6502 + if (cpu_repeat) return cpu_lastval; +#endif ret = PPU_status; vtoggle=0; PPU_status&=0x7F; +#ifdef DEBUG_ASM_6502 + cpu_lastval=ret|(PPUGenLatch&0x1F); +#endif return ret|(PPUGenLatch&0x1F); } @@ -258,6 +335,9 @@ static DECLFR(A2007) { uint8 ret; uint32 tmp=RefreshAddr&0x3FFF; +#ifdef DEBUG_ASM_6502 + if (cpu_repeat) return cpu_lastval; +#endif PPUGenLatch=ret=VRAMBuffer; if(PPU_hook) PPU_hook(tmp); @@ -273,6 +353,9 @@ static DECLFR(A2007) if (INC32) RefreshAddr+=32; else RefreshAddr++; if(PPU_hook) PPU_hook(RefreshAddr&0x3fff); +#ifdef DEBUG_ASM_6502 + cpu_lastval=ret; +#endif return ret; } @@ -398,9 +481,16 @@ static DECLFW(B4014) { uint32 t=V<<8; int x; +#ifdef DEBUG_ASM_6502 + if (cpu_repeat) { X6502_AddCycles_a(512); return; } + for(x=0;x<256;x++) + B2004(0x2004,X.DB=ARead[t+x](t+x)); + X6502_AddCycles_c(512); +#else for(x=0;x<256;x++) B2004(0x2004,X.DB=ARead[t+x](t+x)); X6502_AddCycles(512); +#endif } void BGRender(uint8 *target) @@ -441,7 +531,7 @@ static void Loop6502(void) { uint32 tem; int x; - uint8 *target=XBuf+(scanline<<8)+(scanline<<4)+8; + uint8 *target=XBuf+scanline*320+32; if(ScreenON || SpriteON) { @@ -481,18 +571,19 @@ static void Loop6502(void) if(PPU[1]&0x01) { for(x=63;x>=0;x--) - *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])&0xF0F0F0F0; + ((uint32 *)target)[x]=((uint32*)target)[x]&0xF0F0F0F0; } if((PPU[1]>>5)==0x7) for(x=63;x>=0;x--) - *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0x40404040; + ((uint32 *)target)[x]=(((uint32*)target)[x]&0x3f3f3f3f)|0x40404040; else if(PPU[1]&0xE0) for(x=63;x>=0;x--) - *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])|0xC0C0C0C0; + ((uint32 *)target)[x]=((uint32*)target)[x]|0xC0C0C0C0; else for(x=63;x>=0;x--) - *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])&0x3f3f3f3f; - + ((uint32 *)target)[x]=((uint32*)target)[x]&0x3f3f3f3f; + FCEU_dwmemset(target- 8,0x3f3f3f3f,8); + FCEU_dwmemset(target+256,0x3f3f3f3f,8); #ifdef FRAMESKIP } #endif @@ -784,7 +875,8 @@ static void SetRefreshLine(void) } } -static INLINE void Fixit2(void) +//static INLINE +void Fixit2(void) { if(ScreenON || SpriteON) { @@ -796,7 +888,8 @@ static INLINE void Fixit2(void) } } -static INLINE void Fixit1(void) +//static INLINE +void Fixit1(void) { if(ScreenON || SpriteON) { @@ -824,7 +917,10 @@ static INLINE void Fixit1(void) } } +//#define NEW_TRY + /* This is called at the beginning of all h-blanks on visible lines. */ +#ifndef NEW_TRY static void DoHBlank(void) { if(ScreenON || SpriteON) @@ -846,7 +942,7 @@ static void DoHBlank(void) //PPU_hook(0,-1); //fprintf(stderr,"%3d: $%04x\n",scanline,RefreshAddr); } - +#endif // ============================// @@ -998,14 +1094,12 @@ void FCEU_ResetVidSys(void) if(w) { PAL=1; - scanlines_per_frame=312; FSettings.FirstSLine=FSettings.UsrFirstSLine[1]; FSettings.LastSLine=FSettings.UsrLastSLine[1]; } else { PAL=0; - scanlines_per_frame=262; FSettings.FirstSLine=FSettings.UsrFirstSLine[0]; FSettings.LastSLine=FSettings.UsrLastSLine[0]; } @@ -1029,6 +1123,7 @@ int FCEUI_Initialize(void) static INLINE void Thingo(void) { Loop6502(); +#ifndef NEW_TRY if(tosprite>=256) { @@ -1057,6 +1152,9 @@ static INLINE void Thingo(void) tosprite=256; } DoHBlank(); +#else + X6502_Run_scanline(); +#endif } #undef harko @@ -1064,6 +1162,10 @@ void EmLoop(void) { for(;;) { + uint32 scanlines_per_frame = PAL ? 312 : 262; + //extern int asdc; + //printf("asdc: %i\n", asdc); + //asdc=0; ApplyPeriodicCheats(); X6502_Run(256+85); @@ -1081,7 +1183,9 @@ void EmLoop(void) else if(VBlankON) TriggerNMI(); - X6502_Run((scanlines_per_frame-242)*(256+85)-12); + X6502_Run(256+85-12); + for(scanline=242+1;scanline