/* FCE Ultra - NES/Famicom Emulator
*
* Copyright notice for this file:
- * Copyright (C) 1998 BERO
+ * Copyright (C) 1998 BERO
* Copyright (C) 2002 Ben Parnell
*
* This program is free software; you can redistribute it and/or modify
#include "input.h"
#include "file.h"
#include "crc32.h"
+#include "ppu.h"
#define Pal (PALRAM)
-static void FetchSpriteData(void);
+
static void FASTAPASS(1) RefreshLine(uint8 *target);
static void PRefreshLine(void);
-static void FASTAPASS(1) RefreshSprite(uint8 *target);
+
static void ResetPPU(void);
static void PowerPPU(void);
uint32 MMC5HackVROMMask;
uint8 *MMC5HackExNTARAMPtr;
uint8 *MMC5HackVROMPTR;
-uint8 MMC5HackCHRMode=0;
+uint8 MMC5HackCHRMode=0;
uint8 MMC5HackSPMode;
uint8 MMC5HackSPScroll;
uint8 MMC5HackSPPage;
static uint8 deemp=0;
static int deempcnt[8];
-static int tosprite=256;
+int tosprite=256;
FCEUGI FCEUGameInfo;
void (*GameInterface)(int h);
uint32 TempAddr,RefreshAddr;
-static int maxsprites=8;
/* scanline is equal to the current visible scanline we're on. */
uint8 PPUSPL;
uint8 GameMemBlock[131072];
-uint8 NTARAM[0x800],PALRAM[0x20],SPRAM[0x100],SPRBUF[0x100];
+uint8 NTARAM[0x800],PALRAM[0x20];
uint8 RAM[0x800];
uint8 PAL=0;
-#define MMC5SPRVRAMADR(V) &MMC5SPRVPage[(V)>>10][(V)]
+
#define MMC5BGVRAMADR(V) &MMC5BGVPage[(V)>>10][(V)]
#define VRAMADR(V) &VPage[(V)>>10][(V)]
-
+
static DECLFW(BRAML)
-{
+{
RAM[A]=V;
}
return RAM[A&0x7FF];
}
-
+
static DECLFR(A2002)
{
uint8 ret;
PPUGenLatch=ret=VRAMBuffer;
if(PPU_hook) PPU_hook(tmp);
- if(tmp<0x2000)
+ if(tmp<0x2000)
{
VRAMBuffer=VPage[tmp>>10][tmp];
}
- else
+ else
{
VRAMBuffer=vnapage[(tmp>>10)&0x3][tmp&0x3FF];
}
PPUSPL++;
}
PPU[3]++;
+
}
static DECLFW(B2005)
}
static DECLFW(B2007)
-{
+{
uint32 tmp=RefreshAddr&0x3FFF;
PPUGenLatch=V;
VPage[tmp>>10][tmp]=V;
}
else
- {
+ {
if(PPUNTARAM&(1<<((tmp&0xF00)>>10)))
vnapage[((tmp&0xF00)>>10)][tmp&0x3FF]=V;
}
}
static DECLFW(B4014)
-{
+{
uint32 t=V<<8;
int x;
for(x=0;x<256;x++)
X6502_AddCycles(512);
}
-static void FASTAPASS(1) BGRender(uint8 *target)
+void BGRender(uint8 *target)
{
uint32 tem;
RefreshLine(target);
}
#ifdef FRAMESKIP
-static int FSkip=0;
+int FSkip_setting=-1; // auto
+int FSkip=0;
void FCEUI_FrameSkip(int x)
{
FSkip=x;
{
#endif
if(PPU[1]&0x01)
- {
+ {
for(x=63;x>=0;x--)
*(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])&0xF0F0F0F0;
}
{
tem=Pal[0]|(Pal[0]<<8)|(Pal[0]<<16)|(Pal[0]<<24);
FCEU_dwmemset(target,tem,256);
- }
+ }
if(InputScanlineHook)
InputScanlineHook(target, scanline);
}
{
uint32 vofs;
int X1;
- register uint8 *P=target;
+ uint8 *P=target;
vofs=0;
-
+
Pal[0]|=64;
Pal[4]|=64;
Pal[8]|=64;
for(X1=33;X1;X1--,P+=8)
{
uint8 *C;
- register uint8 cc,zz,zz2;
+ uint8 cc,zz,zz2;
uint32 vadr;
- if((tochange<=0 && MMC5HackSPMode&0x40) ||
+ if((tochange<=0 && MMC5HackSPMode&0x40) ||
(tochange>0 && !(MMC5HackSPMode&0x40)))
{
uint8 xs,ys;
- xs=33-X1;
+ xs=33-X1;
ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
if(ys>=0x1E) ys-=0x1E;
vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
for(X1=33;X1;X1--,P+=8)
{
uint8 *C;
- register uint8 cc;
- register uint8 zz2;
+ uint8 cc;
+ uint8 zz2;
uint32 vadr;
if((tochange<=0 && MMC5HackSPMode&0x40) ||
{
uint8 xs,ys;
- xs=33-X1;
+ xs=33-X1;
ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
if(ys>=0x1E) ys-=0x1E;
vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
{
for(X1=33;X1;X1--,P+=8)
{
- uint8 *C;
- register uint8 cc;
- register uint8 zz2;
- uint32 vadr;
+ uint8 *C;
+ uint8 cc;
+ uint8 zz2;
+ uint32 vadr;
C=MMC5HackVROMPTR;
zz2=(RefreshAddr>>10)&3;
vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
- C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
+ C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
MMC5HackVROMMask) << 12) + (vadr & 0xfff);
vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
cc = vadr;
for(X1=33;X1;X1--,P+=8)
{
uint8 *C;
- register uint8 cc,zz,zz2;
+ uint8 cc,zz,zz2;
uint32 vadr;
zz=RefreshAddr&0x1F;
cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
#include "fceline.h"
-
+
if((RefreshAddr&0x1f)==0x1f)
RefreshAddr^=0x41F;
else
RefreshAddr++;
- }
+ }
}
- } // End if(MMC5Hack)
+ } // End if(MMC5Hack)
else if(PPU_hook)
{
for(X1=33;X1;X1--,P+=8)
{
- uint8 *C;
- register uint8 cc,zz,zz2;
- uint32 vadr;
+ uint8 *C;
+ uint8 cc,zz,zz2;
+ uint32 vadr;
zz=RefreshAddr&0x1F;
zz2=(RefreshAddr>>10)&3;
}
}
else
- {
+ {
for(X1=33;X1;X1--,P+=8)
{
uint8 *C;
- register uint8 cc,zz,zz2;
+ uint8 cc,zz,zz2;
uint32 vadr;
zz=RefreshAddr&0x1F;
cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
#include "fceline.h"
-
+
if((RefreshAddr&0x1f)==0x1f)
RefreshAddr^=0x41F;
else
//fprintf(stderr,"%3d: $%04x\n",scanline,RefreshAddr);
}
-#define V_FLIP 0x80
-#define H_FLIP 0x40
-#define SP_BACK 0x20
-typedef struct {
- uint8 y,no,atr,x;
-} SPR;
-typedef struct {
- uint8 ca[2],atr,x;
-} SPRB;
-uint8 sprlinebuf[256+8];
-void FCEUI_DisableSpriteLimitation(int a)
-{
- maxsprites=a?64:8;
-}
-static uint8 nosprites,SpriteBlurp;
-static void FetchSpriteData(void)
-{
- SPR *spr;
- uint8 H;
- int n,vofs;
- spr=(SPR *)SPRAM;
- H=8;
- nosprites=SpriteBlurp=0;
- vofs=(unsigned int)(PPU[0]&0x8&(((PPU[0]&0x20)^0x20)>>2))<<9;
- H+=(PPU[0]&0x20)>>2;
- if(!PPU_hook)
- for(n=63;n>=0;n--,spr++)
- {
- if((unsigned int)(scanline-spr->y)>=H) continue;
- if(nosprites<maxsprites)
- {
- if(n==63) SpriteBlurp=1;
-
- {
- SPRB dst;
- uint8 *C;
- int t;
- unsigned int vadr;
-
- t = (int)scanline-(spr->y);
-
- if (Sprite16)
- vadr = ((spr->no&1)<<12) + ((spr->no&0xFE)<<4);
- else
- vadr = (spr->no<<4)+vofs;
-
- if (spr->atr&V_FLIP)
- {
- vadr+=7;
- vadr-=t;
- vadr+=(PPU[0]&0x20)>>1;
- vadr-=t&8;
- }
- else
- {
- vadr+=t;
- vadr+=t&8;
- }
-
- /* Fix this geniestage hack */
- if(MMC5Hack && geniestage!=1) C = MMC5SPRVRAMADR(vadr);
- else C = VRAMADR(vadr);
-
-
- dst.ca[0]=C[0];
- dst.ca[1]=C[8];
- dst.x=spr->x;
- dst.atr=spr->atr;
-
-
- *(uint32 *)&SPRBUF[nosprites<<2]=*(uint32 *)&dst;
- }
-
- nosprites++;
- }
- else
- {
- PPU_status|=0x20;
- break;
- }
- }
- else
- for(n=63;n>=0;n--,spr++)
- {
- if((unsigned int)(scanline-spr->y)>=H) continue;
- if(nosprites<maxsprites)
- {
- if(n==63) SpriteBlurp=1;
-
- {
- SPRB dst;
- uint8 *C;
- int t;
- unsigned int vadr;
-
- t = (int)scanline-(spr->y);
-
- if (Sprite16)
- vadr = ((spr->no&1)<<12) + ((spr->no&0xFE)<<4);
- else
- vadr = (spr->no<<4)+vofs;
-
- if (spr->atr&V_FLIP)
- {
- vadr+=7;
- vadr-=t;
- vadr+=(PPU[0]&0x20)>>1;
- vadr-=t&8;
- }
- else
- {
- vadr+=t;
- vadr+=t&8;
- }
-
- if(MMC5Hack) C = MMC5SPRVRAMADR(vadr);
- else C = VRAMADR(vadr);
- dst.ca[0]=C[0];
- PPU_hook(vadr);
- dst.ca[1]=C[8];
- PPU_hook(vadr|8);
- dst.x=spr->x;
- dst.atr=spr->atr;
-
-
- *(uint32 *)&SPRBUF[nosprites<<2]=*(uint32 *)&dst;
- }
-
- nosprites++;
- }
- else
- {
- PPU_status|=0x20;
- break;
- }
- }
-}
-static void FASTAPASS(1) RefreshSprite(uint8 *target)
-{
- int n;
- SPRB *spr;
- uint8 *P=target;
-
- if(!nosprites) return;
- #ifdef FRAMESKIP
- if(FSkip)
- {
- if(!SpriteBlurp)
- {
- nosprites=0;
- return;
- }
- else
- nosprites=1;
- }
- #endif
- FCEU_dwmemset(sprlinebuf,0x80808080,256);
- nosprites--;
- spr = (SPRB*)SPRBUF+nosprites;
-
- for(n=nosprites;n>=0;n--,spr--)
- {
- register uint8 J,atr,c1,c2;
- int x=spr->x;
- uint8 *C;
- uint8 *VB;
-
- P+=x;
-
- c1=((spr->ca[0]>>1)&0x55)|(spr->ca[1]&0xAA);
- c2=(spr->ca[0]&0x55)|((spr->ca[1]<<1)&0xAA);
-
- J=spr->ca[0]|spr->ca[1];
- atr=spr->atr;
-
- if(J)
- {
- if(n==0 && SpriteBlurp && !(PPU_status&0x40))
- {
- int z,ze=x+8;
- if(ze>256) {ze=256;}
- if(ScreenON && (scanline<FSettings.FirstSLine || scanline>FSettings.LastSLine
- #ifdef FRAMESKIP
- || FSkip
- #endif
- ))
- BGRender(target);
-
- if(!(atr&H_FLIP))
- {
- for(z=x;z<ze;z++)
- {
- if(J&(0x80>>(z-x)))
- {
- if(!(target[z]&64))
- tosprite=z;
- }
- }
- }
- else
- {
- for(z=x;z<ze;z++)
- {
- if(J&(1<<(z-x)))
- {
- if(!(target[z]&64))
- tosprite=z;
- }
- }
- }
- //FCEU_DispMessage("%d, %d:%d",scanline,x,tosprite);
- }
- C = sprlinebuf+x;
- VB = (PALRAM+0x10)+((atr&3)<<2);
- if(atr&SP_BACK)
- {
- if (atr&H_FLIP)
- {
- if (J&0x02) C[1]=VB[c1&3]|0x40;
- if (J&0x01) *C=VB[c2&3]|0x40;
- c1>>=2;c2>>=2;
- if (J&0x08) C[3]=VB[c1&3]|0x40;;
- if (J&0x04) C[2]=VB[c2&3]|0x40;;
- c1>>=2;c2>>=2;
- if (J&0x20) C[5]=VB[c1&3]|0x40;;
- if (J&0x10) C[4]=VB[c2&3]|0x40;;
- c1>>=2;c2>>=2;
- if (J&0x80) C[7]=VB[c1]|0x40;;
- if (J&0x40) C[6]=VB[c2]|0x40;;
- } else {
- if (J&0x02) C[6]=VB[c1&3]|0x40;
- if (J&0x01) C[7]=VB[c2&3]|0x40;
- c1>>=2;c2>>=2;
- if (J&0x08) C[4]=VB[c1&3]|0x40;
- if (J&0x04) C[5]=VB[c2&3]|0x40;
- c1>>=2;c2>>=2;
- if (J&0x20) C[2]=VB[c1&3]|0x40;
- if (J&0x10) C[3]=VB[c2&3]|0x40;
- c1>>=2;c2>>=2;
- if (J&0x80) *C=VB[c1]|0x40;
- if (J&0x40) C[1]=VB[c2]|0x40;
- }
- } else {
- if (atr&H_FLIP)
- {
- if (J&0x02) C[1]=VB[(c1&3)];
- if (J&0x01) *C=VB[(c2&3)];
- c1>>=2;c2>>=2;
- if (J&0x08) C[3]=VB[(c1&3)];
- if (J&0x04) C[2]=VB[(c2&3)];
- c1>>=2;c2>>=2;
- if (J&0x20) C[5]=VB[(c1&3)];
- if (J&0x10) C[4]=VB[(c2&3)];
- c1>>=2;c2>>=2;
- if (J&0x80) C[7]=VB[c1];
- if (J&0x40) C[6]=VB[c2];
- }else{
- if (J&0x02) C[6]=VB[(c1&3)];
- if (J&0x01) C[7]=VB[(c2&3)];
- c1>>=2;c2>>=2;
- if (J&0x08) C[4]=VB[(c1&3)];
- if (J&0x04) C[5]=VB[(c2&3)];
- c1>>=2;c2>>=2;
- if (J&0x20) C[2]=VB[(c1&3)];
- if (J&0x10) C[3]=VB[(c2&3)];
- c1>>=2;c2>>=2;
- if (J&0x80) *C=VB[c1];
- if (J&0x40) C[1]=VB[c2];
- }
- }
- }
- P-=x;
- }
-
- nosprites=0;
- #ifdef FRAMESKIP
- if(FSkip) return;
- #endif
-
- {
- uint8 n=((PPU[1]&4)^4)<<1;
- loopskie:
- {
- uint32 t=*(uint32 *)(sprlinebuf+n);
- if(t!=0x80808080)
- {
- #ifdef LSB_FIRST
- if(!(t&0x80))
- {
- if(!(t&0x40)) // Normal sprite
- P[n]=sprlinebuf[n];
- else if(P[n]&64) // behind bg sprite
- P[n]=sprlinebuf[n];
- }
-
- if(!(t&0x8000))
- {
- if(!(t&0x4000)) // Normal sprite
- P[n+1]=(sprlinebuf+1)[n];
- else if(P[n+1]&64) // behind bg sprite
- P[n+1]=(sprlinebuf+1)[n];
- }
-
- if(!(t&0x800000))
- {
- if(!(t&0x400000)) // Normal sprite
- P[n+2]=(sprlinebuf+2)[n];
- else if(P[n+2]&64) // behind bg sprite
- P[n+2]=(sprlinebuf+2)[n];
- }
-
- if(!(t&0x80000000))
- {
- if(!(t&0x40000000)) // Normal sprite
- P[n+3]=(sprlinebuf+3)[n];
- else if(P[n+3]&64) // behind bg sprite
- P[n+3]=(sprlinebuf+3)[n];
- }
- #else
- if(!(t&0x80000000))
- {
- if(!(t&0x40)) // Normal sprite
- P[n]=sprlinebuf[n];
- else if(P[n]&64) // behind bg sprite
- P[n]=sprlinebuf[n];
- }
-
- if(!(t&0x800000))
- {
- if(!(t&0x4000)) // Normal sprite
- P[n+1]=(sprlinebuf+1)[n];
- else if(P[n+1]&64) // behind bg sprite
- P[n+1]=(sprlinebuf+1)[n];
- }
-
- if(!(t&0x8000))
- {
- if(!(t&0x400000)) // Normal sprite
- P[n+2]=(sprlinebuf+2)[n];
- else if(P[n+2]&64) // behind bg sprite
- P[n+2]=(sprlinebuf+2)[n];
- }
-
- if(!(t&0x80))
- {
- if(!(t&0x40000000)) // Normal sprite
- P[n+3]=(sprlinebuf+3)[n];
- else if(P[n+3]&64) // behind bg sprite
- P[n+3]=(sprlinebuf+3)[n];
- }
- #endif
- }
- }
- n+=4;
- if(n) goto loopskie;
- }
-}
+// ============================//
+// end of new code
+// ===========================//
void ResetMapping(void)
{
FlushGameCheats();
#ifdef NETWORK
if(FSettings.NetworkPlay) KillNetplay();
- #endif
+ #endif
GameInterface(GI_CLOSE);
CloseGenie();
GameLoaded=0;
endlseq:
FCEU_fclose(fp);
- GameLoaded=1;
+ GameLoaded=1;
FCEU_ResetVidSys();
if(FCEUGameInfo.type!=GIT_NSF)
LoadGamePalette();
LoadGameCheats();
}
-
+
FCEU_ResetPalette();
Exit=0;
return(&FCEUGameInfo);
FSettings.FirstSLine=FSettings.UsrFirstSLine[0];
FSettings.LastSLine=FSettings.UsrLastSLine[0];
}
+ printf("PAL = %i\n", PAL);
SetSoundVariables();
}
FSettings.UsrFirstSLine[0]=8;
FSettings.UsrFirstSLine[1]=0;
FSettings.UsrLastSLine[0]=FSettings.UsrLastSLine[1]=239;
- FSettings.SoundVolume=65536; // 100%
+ FSettings.SoundVolume=65535; // 100%
return 1;
}
Loop6502();
if(tosprite>=256)
- {
+ {
X6502_Run(256-harko);
Fixit1();
X6502_Run(harko);
breaks a Super Donkey Kong game. */
X6502_Run(12); /* I need to figure out the true nature and length
- of this delay.
+ of this delay.
*/
if(FCEUGameInfo.type==GIT_NSF)
TriggerNMINSF();
else if(VBlankON)
TriggerNMI();
- X6502_Run((scanlines_per_frame-242)*(256+85)-12);
+ X6502_Run((scanlines_per_frame-242)*(256+85)-12);
PPU_status&=0x1f;
{
FCEU_PutImageDummy();
FSkip--;
- FCEUD_Update(0,WaveFinal,ssize);
+ FCEUD_Update(0,WaveFinalMono,ssize);
}
else
#endif
{
FCEU_PutImage();
- FCEUD_Update(XBuf+8,WaveFinal,ssize);
+ FCEUD_Update(XBuf+8,WaveFinalMono,ssize);
}
UpdateInput();
}
X6502_Reset();
}
-void PowerNES(void)
+void PowerNES(void)
{
if(!GameLoaded) return;
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