mirror of
https://github.com/dborth/fceugx.git
synced 2024-11-01 06:55:05 +01:00
119 lines
2.5 KiB
C++
119 lines
2.5 KiB
C++
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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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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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 & MMC5HackVROMMask) << 12) + (vadr & 0xfff);
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C += (MMC50x5130 & 0x3) << 18; //11-jun-2009 for kuja_killer
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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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#ifdef PPU_BGFETCH
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if (RefreshAddr & 1) {
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if(ScreenON)
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RENDER_LOGP(C + 8);
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pshift[0] |= C[8];
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pshift[1] |= C[8];
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} else {
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if(ScreenON)
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RENDER_LOGP(C);
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pshift[0] |= C[0];
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pshift[1] |= C[0];
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}
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#else
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if(ScreenON)
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RENDER_LOGP(C);
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pshift[0] |= C[0];
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if(ScreenON)
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RENDER_LOGP(C + 8);
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pshift[1] |= C[8];
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#endif
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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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