#ifdef PPU_CPP //INIDISP void PPU::mmio_w2100(uint8 value) { if(regs.display_disabled == true && cpu.vcounter() == (!overscan() ? 225 : 240)) { regs.oam_addr = regs.oam_baseaddr << 1; regs.oam_firstsprite = (regs.oam_priority == false) ? 0 : (regs.oam_addr >> 2) & 127; } regs.display_disabled = !!(value & 0x80); regs.display_brightness = value & 15; } //OBSEL void PPU::mmio_w2101(uint8 value) { regs.oam_basesize = (value >> 5) & 7; regs.oam_nameselect = (value >> 3) & 3; regs.oam_tdaddr = (value & 3) << 14; } //OAMADDL void PPU::mmio_w2102(uint8 data) { regs.oam_baseaddr = (regs.oam_baseaddr & ~0xff) | (data << 0); regs.oam_baseaddr &= 0x01ff; regs.oam_addr = regs.oam_baseaddr << 1; regs.oam_firstsprite = (regs.oam_priority == false) ? 0 : (regs.oam_addr >> 2) & 127; } //OAMADDH void PPU::mmio_w2103(uint8 data) { regs.oam_priority = !!(data & 0x80); regs.oam_baseaddr = (regs.oam_baseaddr & 0xff) | (data << 8); regs.oam_baseaddr &= 0x01ff; regs.oam_addr = regs.oam_baseaddr << 1; regs.oam_firstsprite = (regs.oam_priority == false) ? 0 : (regs.oam_addr >> 2) & 127; } //OAMDATA void PPU::mmio_w2104(uint8 data) { if((regs.oam_addr & 1) == 0) regs.oam_latchdata = data; if(regs.oam_addr & 0x0200) { oam_mmio_write(regs.oam_addr, data); } else if((regs.oam_addr & 1) == 1) { oam_mmio_write((regs.oam_addr & ~1) + 0, regs.oam_latchdata); oam_mmio_write((regs.oam_addr & ~1) + 1, data); } regs.oam_addr++; regs.oam_addr &= 0x03ff; regs.oam_firstsprite = (regs.oam_priority == false) ? 0 : (regs.oam_addr >> 2) & 127; } //BGMODE void PPU::mmio_w2105(uint8 value) { regs.bg_tilesize[BG4] = !!(value & 0x80); regs.bg_tilesize[BG3] = !!(value & 0x40); regs.bg_tilesize[BG2] = !!(value & 0x20); regs.bg_tilesize[BG1] = !!(value & 0x10); regs.bg3_priority = !!(value & 0x08); regs.bg_mode = (value & 7); } //MOSAIC void PPU::mmio_w2106(uint8 value) { regs.mosaic_size = (value >> 4) & 15; regs.mosaic_enabled[BG4] = !!(value & 0x08); regs.mosaic_enabled[BG3] = !!(value & 0x04); regs.mosaic_enabled[BG2] = !!(value & 0x02); regs.mosaic_enabled[BG1] = !!(value & 0x01); } //BG1SC void PPU::mmio_w2107(uint8 value) { regs.bg_scaddr[BG1] = (value & 0x7c) << 9; regs.bg_scsize[BG1] = value & 3; } //BG2SC void PPU::mmio_w2108(uint8 value) { regs.bg_scaddr[BG2] = (value & 0x7c) << 9; regs.bg_scsize[BG2] = value & 3; } //BG3SC void PPU::mmio_w2109(uint8 value) { regs.bg_scaddr[BG3] = (value & 0x7c) << 9; regs.bg_scsize[BG3] = value & 3; } //BG4SC void PPU::mmio_w210a(uint8 value) { regs.bg_scaddr[BG4] = (value & 0x7c) << 9; regs.bg_scsize[BG4] = value & 3; } //BG12NBA void PPU::mmio_w210b(uint8 value) { regs.bg_tdaddr[BG1] = (value & 0x07) << 13; regs.bg_tdaddr[BG2] = (value & 0x70) << 9; } //BG34NBA void PPU::mmio_w210c(uint8 value) { regs.bg_tdaddr[BG3] = (value & 0x07) << 13; regs.bg_tdaddr[BG4] = (value & 0x70) << 9; } //BG1HOFS void PPU::mmio_w210d(uint8 value) { regs.m7_hofs = (value << 8) | regs.m7_latch; regs.m7_latch = value; regs.bg_hofs[BG1] = (value << 8) | (regs.bg_ofslatch & ~7) | ((regs.bg_hofs[BG1] >> 8) & 7); regs.bg_ofslatch = value; } //BG1VOFS void PPU::mmio_w210e(uint8 value) { regs.m7_vofs = (value << 8) | regs.m7_latch; regs.m7_latch = value; regs.bg_vofs[BG1] = (value << 8) | (regs.bg_ofslatch); regs.bg_ofslatch = value; } //BG2HOFS void PPU::mmio_w210f(uint8 value) { regs.bg_hofs[BG2] = (value << 8) | (regs.bg_ofslatch & ~7) | ((regs.bg_hofs[BG2] >> 8) & 7); regs.bg_ofslatch = value; } //BG2VOFS void PPU::mmio_w2110(uint8 value) { regs.bg_vofs[BG2] = (value << 8) | (regs.bg_ofslatch); regs.bg_ofslatch = value; } //BG3HOFS void PPU::mmio_w2111(uint8 value) { regs.bg_hofs[BG3] = (value << 8) | (regs.bg_ofslatch & ~7) | ((regs.bg_hofs[BG3] >> 8) & 7); regs.bg_ofslatch = value; } //BG3VOFS void PPU::mmio_w2112(uint8 value) { regs.bg_vofs[BG3] = (value << 8) | (regs.bg_ofslatch); regs.bg_ofslatch = value; } //BG4HOFS void PPU::mmio_w2113(uint8 value) { regs.bg_hofs[BG4] = (value << 8) | (regs.bg_ofslatch & ~7) | ((regs.bg_hofs[BG4] >> 8) & 7); regs.bg_ofslatch = value; } //BG4VOFS void PPU::mmio_w2114(uint8 value) { regs.bg_vofs[BG4] = (value << 8) | (regs.bg_ofslatch); regs.bg_ofslatch = value; } //VMAIN void PPU::mmio_w2115(uint8 value) { regs.vram_incmode = !!(value & 0x80); regs.vram_mapping = (value >> 2) & 3; switch(value & 3) { case 0: regs.vram_incsize = 1; break; case 1: regs.vram_incsize = 32; break; case 2: regs.vram_incsize = 128; break; case 3: regs.vram_incsize = 128; break; } } //VMADDL void PPU::mmio_w2116(uint8 value) { regs.vram_addr = (regs.vram_addr & 0xff00) | value; uint16 addr = get_vram_address(); regs.vram_readbuffer = vram_mmio_read(addr + 0); regs.vram_readbuffer |= vram_mmio_read(addr + 1) << 8; } //VMADDH void PPU::mmio_w2117(uint8 value) { regs.vram_addr = (value << 8) | (regs.vram_addr & 0x00ff); uint16 addr = get_vram_address(); regs.vram_readbuffer = vram_mmio_read(addr + 0); regs.vram_readbuffer |= vram_mmio_read(addr + 1) << 8; } //VMDATAL void PPU::mmio_w2118(uint8 value) { uint16 addr = get_vram_address(); vram_mmio_write(addr, value); bg_tiledata_state[TILE_2BIT][(addr >> 4)] = 1; bg_tiledata_state[TILE_4BIT][(addr >> 5)] = 1; bg_tiledata_state[TILE_8BIT][(addr >> 6)] = 1; if(regs.vram_incmode == 0) { regs.vram_addr += regs.vram_incsize; } } //VMDATAH void PPU::mmio_w2119(uint8 value) { uint16 addr = get_vram_address() + 1; vram_mmio_write(addr, value); bg_tiledata_state[TILE_2BIT][(addr >> 4)] = 1; bg_tiledata_state[TILE_4BIT][(addr >> 5)] = 1; bg_tiledata_state[TILE_8BIT][(addr >> 6)] = 1; if(regs.vram_incmode == 1) { regs.vram_addr += regs.vram_incsize; } } //M7SEL void PPU::mmio_w211a(uint8 value) { regs.mode7_repeat = (value >> 6) & 3; regs.mode7_vflip = !!(value & 0x02); regs.mode7_hflip = !!(value & 0x01); } //M7A void PPU::mmio_w211b(uint8 value) { regs.m7a = (value << 8) | regs.m7_latch; regs.m7_latch = value; } //M7B void PPU::mmio_w211c(uint8 value) { regs.m7b = (value << 8) | regs.m7_latch; regs.m7_latch = value; } //M7C void PPU::mmio_w211d(uint8 value) { regs.m7c = (value << 8) | regs.m7_latch; regs.m7_latch = value; } //M7D void PPU::mmio_w211e(uint8 value) { regs.m7d = (value << 8) | regs.m7_latch; regs.m7_latch = value; } //M7X void PPU::mmio_w211f(uint8 value) { regs.m7x = (value << 8) | regs.m7_latch; regs.m7_latch = value; } //M7Y void PPU::mmio_w2120(uint8 value) { regs.m7y = (value << 8) | regs.m7_latch; regs.m7_latch = value; } //CGADD void PPU::mmio_w2121(uint8 value) { regs.cgram_addr = value << 1; } //CGDATA //note: CGRAM palette data format is 15-bits //(0,bbbbb,ggggg,rrrrr). Highest bit is ignored, //as evidenced by $213b CGRAM data reads. // //anomie indicates writes to CGDATA work the same //as writes to OAMDATA's low table. need to verify //this on hardware. void PPU::mmio_w2122(uint8 value) { if(!(regs.cgram_addr & 1)) { regs.cgram_latchdata = value; } else { cgram_mmio_write((regs.cgram_addr & 0x01fe), regs.cgram_latchdata); cgram_mmio_write((regs.cgram_addr & 0x01fe) + 1, value & 0x7f); } regs.cgram_addr++; regs.cgram_addr &= 0x01ff; } //W12SEL void PPU::mmio_w2123(uint8 value) { regs.window2_enabled[BG2] = !!(value & 0x80); regs.window2_invert [BG2] = !!(value & 0x40); regs.window1_enabled[BG2] = !!(value & 0x20); regs.window1_invert [BG2] = !!(value & 0x10); regs.window2_enabled[BG1] = !!(value & 0x08); regs.window2_invert [BG1] = !!(value & 0x04); regs.window1_enabled[BG1] = !!(value & 0x02); regs.window1_invert [BG1] = !!(value & 0x01); } //W34SEL void PPU::mmio_w2124(uint8 value) { regs.window2_enabled[BG4] = !!(value & 0x80); regs.window2_invert [BG4] = !!(value & 0x40); regs.window1_enabled[BG4] = !!(value & 0x20); regs.window1_invert [BG4] = !!(value & 0x10); regs.window2_enabled[BG3] = !!(value & 0x08); regs.window2_invert [BG3] = !!(value & 0x04); regs.window1_enabled[BG3] = !!(value & 0x02); regs.window1_invert [BG3] = !!(value & 0x01); } //WOBJSEL void PPU::mmio_w2125(uint8 value) { regs.window2_enabled[COL] = !!(value & 0x80); regs.window2_invert [COL] = !!(value & 0x40); regs.window1_enabled[COL] = !!(value & 0x20); regs.window1_invert [COL] = !!(value & 0x10); regs.window2_enabled[OAM] = !!(value & 0x08); regs.window2_invert [OAM] = !!(value & 0x04); regs.window1_enabled[OAM] = !!(value & 0x02); regs.window1_invert [OAM] = !!(value & 0x01); } //WH0 void PPU::mmio_w2126(uint8 value) { regs.window1_left = value; } //WH1 void PPU::mmio_w2127(uint8 value) { regs.window1_right = value; } //WH2 void PPU::mmio_w2128(uint8 value) { regs.window2_left = value; } //WH3 void PPU::mmio_w2129(uint8 value) { regs.window2_right = value; } //WBGLOG void PPU::mmio_w212a(uint8 value) { regs.window_mask[BG4] = (value >> 6) & 3; regs.window_mask[BG3] = (value >> 4) & 3; regs.window_mask[BG2] = (value >> 2) & 3; regs.window_mask[BG1] = (value ) & 3; } //WOBJLOG void PPU::mmio_w212b(uint8 value) { regs.window_mask[COL] = (value >> 2) & 3; regs.window_mask[OAM] = (value ) & 3; } //TM void PPU::mmio_w212c(uint8 value) { regs.bg_enabled[OAM] = !!(value & 0x10); regs.bg_enabled[BG4] = !!(value & 0x08); regs.bg_enabled[BG3] = !!(value & 0x04); regs.bg_enabled[BG2] = !!(value & 0x02); regs.bg_enabled[BG1] = !!(value & 0x01); } //TS void PPU::mmio_w212d(uint8 value) { regs.bgsub_enabled[OAM] = !!(value & 0x10); regs.bgsub_enabled[BG4] = !!(value & 0x08); regs.bgsub_enabled[BG3] = !!(value & 0x04); regs.bgsub_enabled[BG2] = !!(value & 0x02); regs.bgsub_enabled[BG1] = !!(value & 0x01); } //TMW void PPU::mmio_w212e(uint8 value) { regs.window_enabled[OAM] = !!(value & 0x10); regs.window_enabled[BG4] = !!(value & 0x08); regs.window_enabled[BG3] = !!(value & 0x04); regs.window_enabled[BG2] = !!(value & 0x02); regs.window_enabled[BG1] = !!(value & 0x01); } //TSW void PPU::mmio_w212f(uint8 value) { regs.sub_window_enabled[OAM] = !!(value & 0x10); regs.sub_window_enabled[BG4] = !!(value & 0x08); regs.sub_window_enabled[BG3] = !!(value & 0x04); regs.sub_window_enabled[BG2] = !!(value & 0x02); regs.sub_window_enabled[BG1] = !!(value & 0x01); } //CGWSEL void PPU::mmio_w2130(uint8 value) { regs.color_mask = (value >> 6) & 3; regs.colorsub_mask = (value >> 4) & 3; regs.addsub_mode = !!(value & 0x02); regs.direct_color = !!(value & 0x01); } //CGADDSUB void PPU::mmio_w2131(uint8 value) { regs.color_mode = !!(value & 0x80); regs.color_halve = !!(value & 0x40); regs.color_enabled[BACK] = !!(value & 0x20); regs.color_enabled[OAM] = !!(value & 0x10); regs.color_enabled[BG4] = !!(value & 0x08); regs.color_enabled[BG3] = !!(value & 0x04); regs.color_enabled[BG2] = !!(value & 0x02); regs.color_enabled[BG1] = !!(value & 0x01); } //COLDATA void PPU::mmio_w2132(uint8 value) { if(value & 0x80) regs.color_b = value & 0x1f; if(value & 0x40) regs.color_g = value & 0x1f; if(value & 0x20) regs.color_r = value & 0x1f; regs.color_rgb = (regs.color_r) | (regs.color_g << 5) | (regs.color_b << 10); } //SETINI void PPU::mmio_w2133(uint8 value) { regs.mode7_extbg = !!(value & 0x40); regs.pseudo_hires = !!(value & 0x08); regs.overscan = !!(value & 0x04); regs.oam_interlace = !!(value & 0x02); regs.interlace = !!(value & 0x01); display.overscan = regs.overscan; sprite_list_valid = false; } //MPYL uint8 PPU::mmio_r2134() { uint32 r; r = ((int16)regs.m7a * (int8)(regs.m7b >> 8)); regs.ppu1_mdr = r; return regs.ppu1_mdr; } //MPYM uint8 PPU::mmio_r2135() { uint32 r; r = ((int16)regs.m7a * (int8)(regs.m7b >> 8)); regs.ppu1_mdr = r >> 8; return regs.ppu1_mdr; } //MPYH uint8 PPU::mmio_r2136() { uint32 r; r = ((int16)regs.m7a * (int8)(regs.m7b >> 8)); regs.ppu1_mdr = r >> 16; return regs.ppu1_mdr; } //SLHV uint8 PPU::mmio_r2137() { if(cpu.pio() & 0x80) { latch_counters(); } return cpu.regs.mdr; } //OAMDATAREAD uint8 PPU::mmio_r2138() { regs.ppu1_mdr = oam_mmio_read(regs.oam_addr); regs.oam_addr++; regs.oam_addr &= 0x03ff; regs.oam_firstsprite = (regs.oam_priority == false) ? 0 : (regs.oam_addr >> 2) & 127; return regs.ppu1_mdr; } //VMDATALREAD uint8 PPU::mmio_r2139() { uint16 addr = get_vram_address(); regs.ppu1_mdr = regs.vram_readbuffer; if(regs.vram_incmode == 0) { addr &= 0xfffe; regs.vram_readbuffer = vram_mmio_read(addr + 0); regs.vram_readbuffer |= vram_mmio_read(addr + 1) << 8; regs.vram_addr += regs.vram_incsize; } return regs.ppu1_mdr; } //VMDATAHREAD uint8 PPU::mmio_r213a() { uint16 addr = get_vram_address() + 1; regs.ppu1_mdr = regs.vram_readbuffer >> 8; if(regs.vram_incmode == 1) { addr &= 0xfffe; regs.vram_readbuffer = vram_mmio_read(addr + 0); regs.vram_readbuffer |= vram_mmio_read(addr + 1) << 8; regs.vram_addr += regs.vram_incsize; } return regs.ppu1_mdr; } //CGDATAREAD //note: CGRAM palette data is 15-bits (0,bbbbb,ggggg,rrrrr) //therefore, the high byte read from each color does not //update bit 7 of the PPU2 MDR. uint8 PPU::mmio_r213b() { if(!(regs.cgram_addr & 1)) { regs.ppu2_mdr = cgram_mmio_read(regs.cgram_addr) & 0xff; } else { regs.ppu2_mdr &= 0x80; regs.ppu2_mdr |= cgram_mmio_read(regs.cgram_addr) & 0x7f; } regs.cgram_addr++; regs.cgram_addr &= 0x01ff; return regs.ppu2_mdr; } //OPHCT uint8 PPU::mmio_r213c() { if(!regs.latch_hcounter) { regs.ppu2_mdr = regs.hcounter & 0xff; } else { regs.ppu2_mdr &= 0xfe; regs.ppu2_mdr |= (regs.hcounter >> 8) & 1; } regs.latch_hcounter ^= 1; return regs.ppu2_mdr; } //OPVCT uint8 PPU::mmio_r213d() { if(!regs.latch_vcounter) { regs.ppu2_mdr = regs.vcounter & 0xff; } else { regs.ppu2_mdr &= 0xfe; regs.ppu2_mdr |= (regs.vcounter >> 8) & 1; } regs.latch_vcounter ^= 1; return regs.ppu2_mdr; } //STAT77 uint8 PPU::mmio_r213e() { uint8 r = 0x00; r |= (regs.time_over) ? 0x80 : 0x00; r |= (regs.range_over) ? 0x40 : 0x00; r |= (regs.ppu1_mdr & 0x10); r |= (ppu1_version & 0x0f); regs.ppu1_mdr = r; return regs.ppu1_mdr; } //STAT78 uint8 PPU::mmio_r213f() { uint8 r = 0x00; regs.latch_hcounter = 0; regs.latch_vcounter = 0; r |= cpu.field() << 7; if(!(cpu.pio() & 0x80)) { r |= 0x40; } else if(regs.counters_latched == true) { r |= 0x40; regs.counters_latched = false; } r |= (regs.ppu2_mdr & 0x20); r |= (region << 4); //0 = NTSC, 1 = PAL r |= (ppu2_version & 0x0f); regs.ppu2_mdr = r; return regs.ppu2_mdr; } uint8 PPU::mmio_read(unsigned addr) { cpu.synchronize_ppu(); switch(addr & 0xffff) { case 0x2104: case 0x2105: case 0x2106: case 0x2108: case 0x2109: case 0x210a: case 0x2114: case 0x2115: case 0x2116: case 0x2118: case 0x2119: case 0x211a: case 0x2124: case 0x2125: case 0x2126: case 0x2128: case 0x2129: case 0x212a: return regs.ppu1_mdr; case 0x2134: return mmio_r2134(); //MPYL case 0x2135: return mmio_r2135(); //MPYM case 0x2136: return mmio_r2136(); //MPYH case 0x2137: return mmio_r2137(); //SLHV case 0x2138: return mmio_r2138(); //OAMDATAREAD case 0x2139: return mmio_r2139(); //VMDATALREAD case 0x213a: return mmio_r213a(); //VMDATAHREAD case 0x213b: return mmio_r213b(); //CGDATAREAD case 0x213c: return mmio_r213c(); //OPHCT case 0x213d: return mmio_r213d(); //OPVCT case 0x213e: return mmio_r213e(); //STAT77 case 0x213f: return mmio_r213f(); //STAT78 } return cpu.regs.mdr; } void PPU::mmio_write(unsigned addr, uint8 data) { cpu.synchronize_ppu(); switch(addr & 0xffff) { case 0x2100: return mmio_w2100(data); //INIDISP case 0x2101: return mmio_w2101(data); //OBSEL case 0x2102: return mmio_w2102(data); //OAMADDL case 0x2103: return mmio_w2103(data); //OAMADDH case 0x2104: return mmio_w2104(data); //OAMDATA case 0x2105: return mmio_w2105(data); //BGMODE case 0x2106: return mmio_w2106(data); //MOSAIC case 0x2107: return mmio_w2107(data); //BG1SC case 0x2108: return mmio_w2108(data); //BG2SC case 0x2109: return mmio_w2109(data); //BG3SC case 0x210a: return mmio_w210a(data); //BG4SC case 0x210b: return mmio_w210b(data); //BG12NBA case 0x210c: return mmio_w210c(data); //BG34NBA case 0x210d: return mmio_w210d(data); //BG1HOFS case 0x210e: return mmio_w210e(data); //BG1VOFS case 0x210f: return mmio_w210f(data); //BG2HOFS case 0x2110: return mmio_w2110(data); //BG2VOFS case 0x2111: return mmio_w2111(data); //BG3HOFS case 0x2112: return mmio_w2112(data); //BG3VOFS case 0x2113: return mmio_w2113(data); //BG4HOFS case 0x2114: return mmio_w2114(data); //BG4VOFS case 0x2115: return mmio_w2115(data); //VMAIN case 0x2116: return mmio_w2116(data); //VMADDL case 0x2117: return mmio_w2117(data); //VMADDH case 0x2118: return mmio_w2118(data); //VMDATAL case 0x2119: return mmio_w2119(data); //VMDATAH case 0x211a: return mmio_w211a(data); //M7SEL case 0x211b: return mmio_w211b(data); //M7A case 0x211c: return mmio_w211c(data); //M7B case 0x211d: return mmio_w211d(data); //M7C case 0x211e: return mmio_w211e(data); //M7D case 0x211f: return mmio_w211f(data); //M7X case 0x2120: return mmio_w2120(data); //M7Y case 0x2121: return mmio_w2121(data); //CGADD case 0x2122: return mmio_w2122(data); //CGDATA case 0x2123: return mmio_w2123(data); //W12SEL case 0x2124: return mmio_w2124(data); //W34SEL case 0x2125: return mmio_w2125(data); //WOBJSEL case 0x2126: return mmio_w2126(data); //WH0 case 0x2127: return mmio_w2127(data); //WH1 case 0x2128: return mmio_w2128(data); //WH2 case 0x2129: return mmio_w2129(data); //WH3 case 0x212a: return mmio_w212a(data); //WBGLOG case 0x212b: return mmio_w212b(data); //WOBJLOG case 0x212c: return mmio_w212c(data); //TM case 0x212d: return mmio_w212d(data); //TS case 0x212e: return mmio_w212e(data); //TMW case 0x212f: return mmio_w212f(data); //TSW case 0x2130: return mmio_w2130(data); //CGWSEL case 0x2131: return mmio_w2131(data); //CGADDSUB case 0x2132: return mmio_w2132(data); //COLDATA case 0x2133: return mmio_w2133(data); //SETINI } } #endif