mirror of
https://github.com/dborth/fceugx.git
synced 2024-11-01 15:05:05 +01:00
103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
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uint8 *C;
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register uint8 cc;
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uint32 vadr;
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#ifndef PPUT_MMC5SP
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register uint8 zz;
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#else
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uint8 xs,ys;
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xs=X1;
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ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
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if(ys>=0x1E) ys-=0x1E;
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#endif
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if(X1>=2)
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{
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uint8 *S=PALRAM;
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uint32 pixdata;
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pixdata=ppulut1[(pshift[0]>>(8-XOffset))&0xFF]|ppulut2[(pshift[1]>>(8-XOffset))&0xFF];
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pixdata|=ppulut3[XOffset|(atlatch<<3)];
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//printf("%02x ",ppulut3[XOffset|(atlatch<<3)]);
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P[0]=S[pixdata&0xF];
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pixdata>>=4;
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P[1]=S[pixdata&0xF];
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pixdata>>=4;
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P[2]=S[pixdata&0xF];
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pixdata>>=4;
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P[3]=S[pixdata&0xF];
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pixdata>>=4;
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P[4]=S[pixdata&0xF];
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pixdata>>=4;
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P[5]=S[pixdata&0xF];
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pixdata>>=4;
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P[6]=S[pixdata&0xF];
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pixdata>>=4;
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P[7]=S[pixdata&0xF];
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P+=8;
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}
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#ifdef PPUT_MMC5SP
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vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
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#else
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zz=RefreshAddr&0x1F;
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C=vnapage[(RefreshAddr>>10)&3];
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vadr=(C[RefreshAddr&0x3ff]<<4)+vofs; /* Fetch name table byte. */
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#endif
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#ifdef PPUT_HOOK
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PPU_hook(0x2000|(RefreshAddr&0xfff));
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#endif
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#ifdef PPUT_MMC5SP
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cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
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cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3);
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#else
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#ifdef PPUT_MMC5CHR1
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cc=(MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>>6;
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#else
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cc=C[0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)]; /* Fetch attribute table byte. */
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cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3);
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#endif
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#endif
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atlatch>>=2;
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atlatch|=cc<<2;
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pshift[0]<<=8;
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pshift[1]<<=8;
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#ifdef PPUT_MMC5SP
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C = MMC5HackVROMPTR+vadr;
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C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
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#else
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#ifdef PPUT_MMC5CHR1
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C = MMC5HackVROMPTR;
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C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
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MMC5HackVROMMask) << 12) + (vadr & 0xfff);
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#elif defined(PPUT_MMC5)
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C=MMC5BGVRAMADR(vadr);
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#else
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C = VRAMADR(vadr);
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#endif
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#endif
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#ifdef PPUT_HOOK
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PPU_hook(vadr);
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#endif
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pshift[0]|=C[0];
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pshift[1]|=C[8];
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if((RefreshAddr&0x1f)==0x1f)
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RefreshAddr^=0x41F;
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else
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RefreshAddr++;
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#ifdef PPUT_HOOK
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PPU_hook(0x2000|(RefreshAddr&0xfff));
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#endif
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