From fa1e5e2948e9b06dec3353081081173f7ae4d742 Mon Sep 17 00:00:00 2001 From: notaz Date: Wed, 21 Feb 2007 22:23:37 +0000 Subject: [PATCH] runs code in 1M wram, cell arrange, decode (untested) git-svn-id: file:///home/notaz/opt/svn/PicoDrive@54 be3aeb3a-fb24-0410-a615-afba39da0efa --- Pico/Memory.c | 189 +------------- Pico/MemoryCmn.c | 219 ++++++++++++++++ Pico/PicoInt.h | 23 +- Pico/VideoPort.c | 27 +- Pico/cd/Area.c | 25 +- Pico/cd/LC89510.c | 21 +- Pico/cd/Memory.c | 554 +++++++++++++++++----------------------- Pico/cd/Misc.c | 38 +++ Pico/cd/Pico.c | 6 +- Pico/cd/cell_map.c | 38 +++ Pico/cd/gfx_cd.c | 75 +++++- Pico/cd/gfx_cd.h | 2 + Pico/misc.s | 101 ++++++++ Pico/sound/sound.c | 4 +- platform/gp2x/emu.c | 18 +- platform/gp2x/version.h | 2 +- 16 files changed, 789 insertions(+), 553 deletions(-) create mode 100644 Pico/MemoryCmn.c create mode 100644 Pico/cd/cell_map.c create mode 100644 Pico/misc.s diff --git a/Pico/Memory.c b/Pico/Memory.c index 509fead..c9c9a02 100644 --- a/Pico/Memory.c +++ b/Pico/Memory.c @@ -107,71 +107,12 @@ static int SRAMRead(u32 a) } #endif -static int PadRead(int i) -{ - int pad=0,value=0,TH; - pad=~PicoPad[i]; // Get inverse of pad MXYZ SACB RLDU - TH=Pico.ioports[i+1]&0x40; - - if(PicoOpt & 0x20) { // 6 button gamepad enabled - int phase = Pico.m.padTHPhase[i]; - - if(phase == 2 && !TH) { - value=(pad&0xc0)>>2; // ?0SA 0000 - goto end; - } else if(phase == 3 && TH) { - value=(pad&0x30)|((pad>>8)&0xf); // ?1CB MXYZ - goto end; - } else if(phase == 3 && !TH) { - value=((pad&0xc0)>>2)|0x0f; // ?0SA 1111 - goto end; - } - } - - if(TH) value=(pad&0x3f); // ?1CB RLDU - else value=((pad&0xc0)>>2)|(pad&3); // ?0SA 00DU - - end: - - // orr the bits, which are set as output - value |= Pico.ioports[i+1]&Pico.ioports[i+4]; - - return value; // will mirror later -} - -u8 z80Read8(u32 a) -{ - if(Pico.m.z80Run&1) return 0; - - a&=0x1fff; - - if(!(PicoOpt&4)) { - // Z80 disabled, do some faking - static u8 zerosent = 0; - if(a == Pico.m.z80_lastaddr) { // probably polling something - u8 d = Pico.m.z80_fakeval; - if((d & 0xf) == 0xf && !zerosent) { - d = 0; zerosent = 1; - } else { - Pico.m.z80_fakeval++; - zerosent = 0; - } - return d; - } else { - Pico.m.z80_fakeval = 0; - } - } - - Pico.m.z80_lastaddr = (u16) a; - return Pico.zram[a]; -} - // for nonstandard reads #ifndef _ASM_MEMORY_C static #endif -u32 UnusualRead16(u32 a, int realsize) +u32 OtherRead16End(u32 a, int realsize) { u32 d=0; @@ -242,109 +183,11 @@ end: return d; } -#ifndef _ASM_MEMORY_C -static -#endif -u32 OtherRead16(u32 a, int realsize) -{ - u32 d=0; - - if ((a&0xff0000)==0xa00000) { - if ((a&0x4000)==0x0000) { d=z80Read8(a); d|=d<<8; goto end; } // Z80 ram (not byteswaped) - if ((a&0x6000)==0x4000) { if(PicoOpt&1) d=YM2612Read(); else d=Pico.m.rotate++&3; dprintf("read ym2612: %04x", d); goto end; } // 0x4000-0x5fff, Fudge if disabled - d=0xffff; goto end; - } - if ((a&0xffffe0)==0xa10000) { // I/O ports - a=(a>>1)&0xf; - switch(a) { - case 0: d=Pico.m.hardware; break; // Hardware value (Version register) - case 1: d=PadRead(0); d|=Pico.ioports[1]&0x80; break; - case 2: d=PadRead(1); d|=Pico.ioports[2]&0x80; break; - default: d=Pico.ioports[a]; break; // IO ports can be used as RAM - } - d|=d<<8; - goto end; - } - // |=0x80 for Shadow of the Beast & Super Offroad; rotate fakes next fetched instruction for Time Killers - if (a==0xa11100) { - d=Pico.m.z80Run&1; -#if 0 - if (!d) { - // do we need this? - extern int z80stopCycle; // TODO: tidy - int stop_before = SekCyclesDone() - z80stopCycle; - if (stop_before > 0 && stop_before <= 16) // Gens uses 16 here - d = 1; // bus not yet available - } -#endif - d=(d<<8)|0x8000|Pico.m.rotate++; - dprintf("get_zrun: %04x [%i|%i] @%06x", d, Pico.m.scanline, SekCyclesDone(), SekPc); - goto end; } - -#ifndef _ASM_MEMORY_C - if ((a&0xe700e0)==0xc00000) { d=PicoVideoRead(a); goto end; } -#endif - - d = UnusualRead16(a, realsize); - -end: - return d; -} //extern UINT32 mz80GetRegisterValue(void *, UINT32); -static void OtherWrite8(u32 a,u32 d,int realsize) +static void OtherWrite8End(u32 a,u32 d,int realsize) { - if ((a&0xe700f9)==0xc00011||(a&0xff7ff9)==0xa07f11) { if(PicoOpt&2) SN76496Write(d); return; } // PSG Sound - if ((a&0xff4000)==0xa00000) { if(!(Pico.m.z80Run&1)) Pico.zram[a&0x1fff]=(u8)d; return; } // Z80 ram - if ((a&0xff6000)==0xa04000) { if(PicoOpt&1) emustatus|=YM2612Write(a&3, d); return; } // FM Sound - if ((a&0xffffe0)==0xa10000) { // I/O ports - a=(a>>1)&0xf; - // 6 button gamepad: if TH went from 0 to 1, gamepad changes state - if(PicoOpt&0x20) { - if(a==1) { - Pico.m.padDelay[0] = 0; - if(!(Pico.ioports[1]&0x40) && (d&0x40)) Pico.m.padTHPhase[0]++; - } - else if(a==2) { - Pico.m.padDelay[1] = 0; - if(!(Pico.ioports[2]&0x40) && (d&0x40)) Pico.m.padTHPhase[1]++; - } - } - Pico.ioports[a]=(u8)d; // IO ports can be used as RAM - return; - } - if (a==0xa11100) { - extern int z80startCycle, z80stopCycle; - //int lineCycles=(488-SekCyclesLeft)&0x1ff; - d&=1; d^=1; - if(!d) { - // this is for a nasty situation where Z80 was enabled and disabled in the same 68k timeslice (Golden Axe III) - if (Pico.m.z80Run) { - int lineCycles=(488-SekCyclesLeft)&0x1ff; - z80stopCycle = SekCyclesDone(); - lineCycles=(lineCycles>>1)-(lineCycles>>5); - z80_run(lineCycles); - } - } else { - z80startCycle = SekCyclesDone(); - //if(Pico.m.scanline != -1) - } - dprintf("set_zrun: %02x [%i|%i] @%06x", d, Pico.m.scanline, SekCyclesDone(), /*mz80GetRegisterValue(NULL, 0),*/ SekPc); - Pico.m.z80Run=(u8)d; return; - } - if (a==0xa11200) { dprintf("write z80Reset: %02x", d); if(!(d&1)) z80_reset(); return; } - - if ((a&0xff7f00)==0xa06000) // Z80 BANK register - { - Pico.m.z80_bank68k>>=1; - Pico.m.z80_bank68k|=(d&1)<<8; - Pico.m.z80_bank68k&=0x1ff; // 9 bits and filled in the new top one - return; - } - - if ((a&0xe700e0)==0xc00000) { PicoVideoWrite(a,(u16)(d|(d<<8))); return; } // Byte access gets mirrored - // sram //if(a==0x200000) dprintf("cc : %02x @ %06x [%i|%i]", d, SekPc, SekCyclesDoneT(), SekCyclesDone()); //if(a==0x200001) dprintf("w8 : %02x @ %06x [%i]", d, SekPc, SekCyclesDoneT()); @@ -408,33 +251,9 @@ static void OtherWrite8(u32 a,u32 d,int realsize) Pico.m.prot_bytes[(a>>2)&1] = (u8)d; } -static void OtherWrite16(u32 a,u32 d) -{ - if ((a&0xe700e0)==0xc00000) { PicoVideoWrite(a,(u16)d); return; } - if ((a&0xff4000)==0xa00000) { if(!(Pico.m.z80Run&1)) Pico.zram[a&0x1fff]=(u8)(d>>8); return; } // Z80 ram (MSB only) - - if ((a&0xffffe0)==0xa10000) { // I/O ports - a=(a>>1)&0xf; - // 6 button gamepad: if TH went from 0 to 1, gamepad changes state - if(PicoOpt&0x20) { - if(a==1) { - Pico.m.padDelay[0] = 0; - if(!(Pico.ioports[1]&0x40) && (d&0x40)) Pico.m.padTHPhase[0]++; - } - else if(a==2) { - Pico.m.padDelay[1] = 0; - if(!(Pico.ioports[2]&0x40) && (d&0x40)) Pico.m.padTHPhase[1]++; - } - } - Pico.ioports[a]=(u8)d; // IO ports can be used as RAM - return; - } - if (a==0xa11100) { OtherWrite8(a, d>>8, 16); return; } - if (a==0xa11200) { dprintf("write z80reset: %04x", d); if(!(d&0x100)) z80_reset(); return; } - OtherWrite8(a, d>>8, 16); - OtherWrite8(a+1,d&0xff, 16); -} +#include "MemoryCmn.c" + // ----------------------------------------------------------------- // Read Rom and read Ram diff --git a/Pico/MemoryCmn.c b/Pico/MemoryCmn.c new file mode 100644 index 0000000..5c7ef84 --- /dev/null +++ b/Pico/MemoryCmn.c @@ -0,0 +1,219 @@ +/* common code for Memory.c and cd/Memory.c */ + +static int PadRead(int i) +{ + int pad=0,value=0,TH; + pad=~PicoPad[i]; // Get inverse of pad MXYZ SACB RLDU + TH=Pico.ioports[i+1]&0x40; + + if(PicoOpt & 0x20) { // 6 button gamepad enabled + int phase = Pico.m.padTHPhase[i]; + + if(phase == 2 && !TH) { + value=(pad&0xc0)>>2; // ?0SA 0000 + goto end; + } else if(phase == 3 && TH) { + value=(pad&0x30)|((pad>>8)&0xf); // ?1CB MXYZ + goto end; + } else if(phase == 3 && !TH) { + value=((pad&0xc0)>>2)|0x0f; // ?0SA 1111 + goto end; + } + } + + if(TH) value=(pad&0x3f); // ?1CB RLDU + else value=((pad&0xc0)>>2)|(pad&3); // ?0SA 00DU + + end: + + // orr the bits, which are set as output + value |= Pico.ioports[i+1]&Pico.ioports[i+4]; + + return value; // will mirror later +} + + +#ifndef _ASM_MEMORY_C +static +#endif +u8 z80Read8(u32 a) +{ + if(Pico.m.z80Run&1) return 0; + + a&=0x1fff; + + if(!(PicoOpt&4)) { + // Z80 disabled, do some faking + static u8 zerosent = 0; + if(a == Pico.m.z80_lastaddr) { // probably polling something + u8 d = Pico.m.z80_fakeval; + if((d & 0xf) == 0xf && !zerosent) { + d = 0; zerosent = 1; + } else { + Pico.m.z80_fakeval++; + zerosent = 0; + } + return d; + } else { + Pico.m.z80_fakeval = 0; + } + } + + Pico.m.z80_lastaddr = (u16) a; + return Pico.zram[a]; +} + + +#ifndef _ASM_MEMORY_C +static +#endif +u32 OtherRead16(u32 a, int realsize) +{ + u32 d=0; + + if ((a&0xff0000)==0xa00000) { + if ((a&0x4000)==0x0000) { d=z80Read8(a); d|=d<<8; goto end; } // Z80 ram (not byteswaped) + if ((a&0x6000)==0x4000) { // 0x4000-0x5fff, Fudge if disabled + if(PicoOpt&1) d=YM2612Read(); + else d=Pico.m.rotate++&3; + dprintf("read ym2612: %04x", d); + goto end; + } + d=0xffff; + goto end; + } + + if ((a&0xffffe0)==0xa10000) { // I/O ports + a=(a>>1)&0xf; + switch(a) { + case 0: d=Pico.m.hardware; break; // Hardware value (Version register) + case 1: d=PadRead(0); d|=Pico.ioports[1]&0x80; break; + case 2: d=PadRead(1); d|=Pico.ioports[2]&0x80; break; + default: d=Pico.ioports[a]; break; // IO ports can be used as RAM + } + d|=d<<8; + goto end; + } + + // |=0x80 for Shadow of the Beast & Super Offroad; rotate fakes next fetched instruction for Time Killers + if (a==0xa11100) { // z80 busreq + d=Pico.m.z80Run&1; +#if 0 + if (!d) { + // do we need this? + extern int z80stopCycle; + int stop_before = SekCyclesDone() - z80stopCycle; + if (stop_before > 0 && stop_before <= 16) // Gens uses 16 here + d = 1; // bus not yet available + } +#endif + d=(d<<8)|0x8000|Pico.m.rotate++; + dprintf("get_zrun: %04x [%i|%i] @%06x", d, Pico.m.scanline, SekCyclesDone(), SekPc); + goto end; + } + +#ifndef _ASM_MEMORY_C + if ((a&0xe700e0)==0xc00000) { d=PicoVideoRead(a); goto end; } +#endif + + d = OtherRead16End(a, realsize); + +end: + return d; +} + + +//extern UINT32 mz80GetRegisterValue(void *, UINT32); + +static void OtherWrite8(u32 a,u32 d,int realsize) +{ + if ((a&0xe700f9)==0xc00011||(a&0xff7ff9)==0xa07f11) { if(PicoOpt&2) SN76496Write(d); return; } // PSG Sound + if ((a&0xff4000)==0xa00000) { if(!(Pico.m.z80Run&1)) Pico.zram[a&0x1fff]=(u8)d; return; } // Z80 ram + if ((a&0xff6000)==0xa04000) { if(PicoOpt&1) emustatus|=YM2612Write(a&3, d); return; } // FM Sound + if ((a&0xffffe0)==0xa10000) { // I/O ports + a=(a>>1)&0xf; + // 6 button gamepad: if TH went from 0 to 1, gamepad changes state + if(PicoOpt&0x20) { + if(a==1) { + Pico.m.padDelay[0] = 0; + if(!(Pico.ioports[1]&0x40) && (d&0x40)) Pico.m.padTHPhase[0]++; + } + else if(a==2) { + Pico.m.padDelay[1] = 0; + if(!(Pico.ioports[2]&0x40) && (d&0x40)) Pico.m.padTHPhase[1]++; + } + } + Pico.ioports[a]=(u8)d; // IO ports can be used as RAM + return; + } + if (a==0xa11100) { + extern int z80startCycle, z80stopCycle; + //int lineCycles=(488-SekCyclesLeft)&0x1ff; + d&=1; d^=1; + if(!d) { + // this is for a nasty situation where Z80 was enabled and disabled in the same 68k timeslice (Golden Axe III) + if (Pico.m.z80Run) { + int lineCycles=(488-SekCyclesLeft)&0x1ff; + z80stopCycle = SekCyclesDone(); + lineCycles=(lineCycles>>1)-(lineCycles>>5); + z80_run(lineCycles); + } + } else { + z80startCycle = SekCyclesDone(); + //if(Pico.m.scanline != -1) + } + dprintf("set_zrun: %02x [%i|%i] @%06x", d, Pico.m.scanline, SekCyclesDone(), /*mz80GetRegisterValue(NULL, 0),*/ SekPc); + Pico.m.z80Run=(u8)d; return; + } + if (a==0xa11200) { + dprintf("write z80Reset: %02x", d); + if(!(d&1)) z80_reset(); + return; + } + + if ((a&0xff7f00)==0xa06000) // Z80 BANK register + { + Pico.m.z80_bank68k>>=1; + Pico.m.z80_bank68k|=(d&1)<<8; + Pico.m.z80_bank68k&=0x1ff; // 9 bits and filled in the new top one + return; + } + + if ((a&0xe700e0)==0xc00000) { + PicoVideoWrite(a,(u16)(d|(d<<8))); // Byte access gets mirrored + return; + } + + OtherWrite8End(a, d, realsize); +} + + +static void OtherWrite16(u32 a,u32 d) +{ + if ((a&0xe700e0)==0xc00000) { PicoVideoWrite(a,(u16)d); return; } + if ((a&0xff4000)==0xa00000) { if(!(Pico.m.z80Run&1)) Pico.zram[a&0x1fff]=(u8)(d>>8); return; } // Z80 ram (MSB only) + + if ((a&0xffffe0)==0xa10000) { // I/O ports + a=(a>>1)&0xf; + // 6 button gamepad: if TH went from 0 to 1, gamepad changes state + if(PicoOpt&0x20) { + if(a==1) { + Pico.m.padDelay[0] = 0; + if(!(Pico.ioports[1]&0x40) && (d&0x40)) Pico.m.padTHPhase[0]++; + } + else if(a==2) { + Pico.m.padDelay[1] = 0; + if(!(Pico.ioports[2]&0x40) && (d&0x40)) Pico.m.padTHPhase[1]++; + } + } + Pico.ioports[a]=(u8)d; // IO ports can be used as RAM + return; + } + if (a==0xa11100) { OtherWrite8(a, d>>8, 16); return; } + if (a==0xa11200) { dprintf("write z80reset: %04x", d); if(!(d&0x100)) z80_reset(); return; } + + OtherWrite8(a, d>>8, 16); + OtherWrite8(a+1,d&0xff, 16); +} + + diff --git a/Pico/PicoInt.h b/Pico/PicoInt.h index 6168a7b..0cbeb80 100644 --- a/Pico/PicoInt.h +++ b/Pico/PicoInt.h @@ -198,13 +198,22 @@ struct mcd_misc typedef struct { unsigned char bios[0x20000]; // 128K - union { - unsigned char prg_ram[0x80000]; // 512K + union { // 512K + unsigned char prg_ram[0x80000]; unsigned char prg_ram_b[4][0x20000]; }; - unsigned char word_ram[0x40000]; // 256K - union { - unsigned char pcm_ram[0x10000]; // 64K + union { // 256K + struct { + unsigned char word_ram2M[0x40000]; + unsigned char unused[0x20000]; + }; + struct { + unsigned char unused[0x20000]; + unsigned char word_ram1M[2][0x20000]; + }; + }; + union { // 64K + unsigned char pcm_ram[0x10000]; unsigned char pcm_ram_b[0x10][0x1000]; }; unsigned char bram[0x2000]; // 8K @@ -293,6 +302,10 @@ void memcpy16(unsigned short *dest, unsigned short *src, int count); void memcpy32(int *dest, int *src, int count); void memset32(int *dest, int c, int count); +// cd/Misc.c +void wram_2M_to_1M(unsigned char *m); +void wram_1M_to_2M(unsigned char *m); + #ifdef __cplusplus } // End of extern "C" diff --git a/Pico/VideoPort.c b/Pico/VideoPort.c index e3643df..bb5fe4a 100644 --- a/Pico/VideoPort.c +++ b/Pico/VideoPort.c @@ -8,6 +8,7 @@ #include "PicoInt.h" +#include "cd/gfx_cd.h" extern const unsigned char hcounts_32[]; extern const unsigned char hcounts_40[]; @@ -98,25 +99,31 @@ static void DmaSlow(int len) pd=(u16 *)(Pico.ram+(source&0xfffe)); pdend=(u16 *)(Pico.ram+0x10000); } else if(PicoMCD & 1) { - dprintf("DmaSlow CD"); + dprintf("DmaSlow CD, r3=%02x", Pico_mcd->s68k_regs[3]); if(source<0x20000) { // Bios area pd=(u16 *)(Pico_mcd->bios+(source&~1)); pdend=(u16 *)(Pico_mcd->bios+0x20000); - } else if ((source&0xfc0000)==0x200000 && (!(Pico_mcd->s68k_regs[3]&4))) { // Word Ram + } else if ((source&0xfc0000)==0x200000) { // Word Ram + source -= 2; if (!(Pico_mcd->s68k_regs[3]&4)) { // 2M mode - source -= 2; - pd=(u16 *)(Pico_mcd->word_ram+(source&0x3fffe)); - pdend=(u16 *)(Pico_mcd->word_ram+0x40000); + pd=(u16 *)(Pico_mcd->word_ram2M+(source&0x3fffe)); + pdend=(u16 *)(Pico_mcd->word_ram2M+0x40000); } else { - dprintf("DmaSlow: unsupported src"); - return; + if (source < 0x220000) { // 1M mode + int bank = Pico_mcd->s68k_regs[3]&1; + pd=(u16 *)(Pico_mcd->word_ram1M[bank]+(source&0x1fffe)); + pdend=(u16 *)(Pico_mcd->word_ram1M[bank]+0x20000); + } else { + DmaSlowCell(source, a, len, inc); + return; + } } } else if ((source&0xfe0000)==0x020000) { // Prg Ram u8 *prg_ram = Pico_mcd->prg_ram_b[Pico_mcd->s68k_regs[3]>>6]; pd=(u16 *)(prg_ram+(source&0x1fffe)); pdend=(u16 *)(prg_ram+0x20000); } else { - dprintf("DmaSlow: unsupported src"); + dprintf("DmaSlow FIXME: unsupported src"); return; } } else { @@ -142,8 +149,8 @@ static void DmaSlow(int len) if (inc == 2 && !(a&1) && a+len*2 < 0x10000) { // most used DMA mode - memcpy16(r + (a>>1), pd, len); - a += len*2; + memcpy16(r + (a>>1), pd, len); + a += len*2; } else { diff --git a/Pico/cd/Area.c b/Pico/cd/Area.c index 82e7b1f..073033f 100644 --- a/Pico/cd/Area.c +++ b/Pico/cd/Area.c @@ -125,10 +125,13 @@ int PicoCdSaveState(void *file) Pico_mcd->m.audio_offset = mp3_get_offset(); memset(buff, 0, sizeof(buff)); PicoAreaPackCpu(buff, 1); + if (Pico_mcd->s68k_regs[3]&4) // 1M mode? + wram_1M_to_2M(Pico_mcd->word_ram2M); + Pico_mcd->m.hint_vector = *(unsigned short *)(Pico_mcd->bios + 0x72); CHECKED_WRITE_BUFF(CHUNK_S68K, buff); CHECKED_WRITE_BUFF(CHUNK_PRG_RAM, Pico_mcd->prg_ram); - CHECKED_WRITE_BUFF(CHUNK_WORD_RAM, Pico_mcd->word_ram); // in 2M format + CHECKED_WRITE_BUFF(CHUNK_WORD_RAM, Pico_mcd->word_ram2M); // in 2M format CHECKED_WRITE_BUFF(CHUNK_PCM_RAM, Pico_mcd->pcm_ram); CHECKED_WRITE_BUFF(CHUNK_BRAM, Pico_mcd->bram); CHECKED_WRITE_BUFF(CHUNK_GA_REGS, Pico_mcd->s68k_regs); // GA regs, not CPU regs @@ -138,6 +141,9 @@ int PicoCdSaveState(void *file) CHECKED_WRITE_BUFF(CHUNK_SCD, Pico_mcd->scd); CHECKED_WRITE_BUFF(CHUNK_RC, Pico_mcd->rot_comp); CHECKED_WRITE_BUFF(CHUNK_MISC_CD, Pico_mcd->m); + + if (Pico_mcd->s68k_regs[3]&4) // convert back + wram_2M_to_1M(Pico_mcd->word_ram2M); } return 0; @@ -216,7 +222,7 @@ int PicoCdLoadState(void *file) break; case CHUNK_PRG_RAM: CHECKED_READ_BUFF(Pico_mcd->prg_ram); break; - case CHUNK_WORD_RAM: CHECKED_READ_BUFF(Pico_mcd->word_ram); break; + case CHUNK_WORD_RAM: CHECKED_READ_BUFF(Pico_mcd->word_ram2M); break; case CHUNK_PCM_RAM: CHECKED_READ_BUFF(Pico_mcd->pcm_ram); break; case CHUNK_BRAM: CHECKED_READ_BUFF(Pico_mcd->bram); break; case CHUNK_GA_REGS: CHECKED_READ_BUFF(Pico_mcd->s68k_regs); break; @@ -225,19 +231,22 @@ int PicoCdLoadState(void *file) case CHUNK_CDC: CHECKED_READ_BUFF(Pico_mcd->cdc); break; case CHUNK_SCD: CHECKED_READ_BUFF(Pico_mcd->scd); break; case CHUNK_RC: CHECKED_READ_BUFF(Pico_mcd->rot_comp); break; - - case CHUNK_MISC_CD: - CHECKED_READ_BUFF(Pico_mcd->m); - mp3_start_play(Pico_mcd->TOC.Tracks[Pico_mcd->m.audio_track].F, Pico_mcd->m.audio_offset); - break; + case CHUNK_MISC_CD: CHECKED_READ_BUFF(Pico_mcd->m); break; default: - printf("skipping unknown chunk %i of size %i\n", buff[0], len); + printf("PicoCdLoadState: skipping unknown chunk %i of size %i\n", buff[0], len); areaSeek(file, len, SEEK_CUR); break; } } + /* after load events */ + if (Pico_mcd->s68k_regs[3]&4) // 1M mode? + wram_2M_to_1M(Pico_mcd->word_ram2M); + mp3_start_play(Pico_mcd->TOC.Tracks[Pico_mcd->m.audio_track].F, Pico_mcd->m.audio_offset); + // restore hint vector + *(unsigned short *)(Pico_mcd->bios + 0x72) = Pico_mcd->m.hint_vector; + return 0; } diff --git a/Pico/cd/LC89510.c b/Pico/cd/LC89510.c index 2549fa8..1f00607 100644 --- a/Pico/cd/LC89510.c +++ b/Pico/cd/LC89510.c @@ -104,19 +104,20 @@ void Update_CDC_TRansfer(int which) { if (Pico_mcd->s68k_regs[3] & 4) { + // test: Final Fight + int bank = !(Pico_mcd->s68k_regs[3]&1); dep = ((DMA_Adr & 0x3FFF) << 3); cdprintf("CD DMA # %04x -> word_ram1M # %06x, len=%i", Pico_mcd->cdc.DAC.N, dep, length); - dep = ((DMA_Adr & 0x3FFF) << 4); - if (!(Pico_mcd->s68k_regs[3]&1)) dep += 2; - dest = (unsigned short *) (Pico_mcd->word_ram + dep); + dest = (unsigned short *) (Pico_mcd->word_ram1M[bank] + dep); - for (len = length; len > 0; len--, src+=2, dest+=2) + // TODO: bswapcpy + for (len = length; len > 0; len--, src+=2, dest++) *dest = (src[0]<<8) | src[1]; { // debug - unsigned char *b1 = Pico_mcd->word_ram + dep; + unsigned char *b1 = Pico_mcd->word_ram1M[bank] + dep; unsigned char *b2 = (unsigned char *)dest - 8; dprintf("%02x %02x %02x %02x .. %02x %02x %02x %02x", b1[0], b1[1], b1[4], b1[5], b2[0], b2[1], b2[4], b2[5]); @@ -127,13 +128,13 @@ void Update_CDC_TRansfer(int which) dep = ((DMA_Adr & 0x7FFF) << 3); cdprintf("CD DMA # %04x -> word_ram2M # %06x, len=%i", Pico_mcd->cdc.DAC.N, dep, length); - dest = (unsigned short *) (Pico_mcd->word_ram + dep); + dest = (unsigned short *) (Pico_mcd->word_ram2M + dep); for (len = length; len > 0; len--, src+=2, dest++) *dest = (src[0]<<8) | src[1]; { // debug - unsigned char *b1 = Pico_mcd->word_ram + dep; + unsigned char *b1 = Pico_mcd->word_ram2M + dep; unsigned char *b2 = (unsigned char *)dest - 4; dprintf("%02x %02x %02x %02x .. %02x %02x %02x %02x", b1[0], b1[1], b1[2], b1[3], b2[0], b2[1], b2[2], b2[3]); @@ -146,7 +147,7 @@ void Update_CDC_TRansfer(int which) dest = (unsigned char *) Ram_PCM; dep = ((DMA_Adr & 0x03FF) << 2) + PCM_Chip.Bank; #else - cdprintf("CD DMA # %04x -> PCM TODO", Pico_mcd->cdc.DAC.N); + dprintf("FIXME: CD DMA # %04x -> PCM", Pico_mcd->cdc.DAC.N); #endif } else if (which == 5) // PRG RAM @@ -188,7 +189,7 @@ unsigned short Read_CDC_Host(int is_sub) if (!(Pico_mcd->scd.Status_CDC & 0x08)) { // Transfer data disabled - cdprintf("Read_CDC_Host: Transfer data disabled"); + cdprintf("Read_CDC_Host FIXME: Transfer data disabled"); return 0; } @@ -196,7 +197,7 @@ unsigned short Read_CDC_Host(int is_sub) (!is_sub && (Pico_mcd->s68k_regs[4] & 7) != 2)) { // Wrong setting - cdprintf("Read_CDC_Host: Wrong setting"); + cdprintf("Read_CDC_Host FIXME: Wrong setting"); return 0; } diff --git a/Pico/cd/Memory.c b/Pico/cd/Memory.c index c941806..890af0a 100644 --- a/Pico/cd/Memory.c +++ b/Pico/cd/Memory.c @@ -19,6 +19,8 @@ #include "gfx_cd.h" #include "pcm.h" +#include "cell_map.c" + typedef unsigned char u8; typedef unsigned short u16; typedef unsigned int u32; @@ -55,7 +57,7 @@ static u32 m68k_reg_read16(u32 a) d = Read_CDC_Host(0); goto end; case 0xA: - dprintf("m68k reserved read"); + dprintf("m68k FIXME: reserved read"); goto end; case 0xC: dprintf("m68k stopwatch timer read"); @@ -69,7 +71,7 @@ static u32 m68k_reg_read16(u32 a) goto end; } - dprintf("m68k_regs invalid read @ %02x", a); + dprintf("m68k_regs FIXME invalid read @ %02x", a); end: @@ -115,12 +117,13 @@ static void m68k_reg_write8(u32 a, u32 d) Pico_mcd->s68k_regs[3] = d; // really use s68k side register return; case 6: - *((char *)&Pico_mcd->m.hint_vector+1) = d; + dprintf("FIXME hint[2]: %02x @%06x", (u8)d, SekPc); Pico_mcd->bios[0x72 + 1] = d; // simple hint vector changer return; case 7: - *(char *)&Pico_mcd->m.hint_vector = d; + dprintf("FIXME hint[3]: %02x @%06x", (u8)d, SekPc); Pico_mcd->bios[0x72] = d; + dprintf("vector is now %08x", PicoRead32(0x70)); return; case 0xe: //dprintf("m68k: comm flag: %02x", d); @@ -133,7 +136,7 @@ static void m68k_reg_write8(u32 a, u32 d) return; } - dprintf("m68k: invalid write? [%02x] %02x", a, d); + dprintf("m68k FIXME: invalid write? [%02x] %02x", a, d); } @@ -187,17 +190,27 @@ static void s68k_reg_write8(u32 a, u32 d) switch (a) { case 2: return; // only m68k can change WP - case 3: + case 3: { + int dold = Pico_mcd->s68k_regs[3]; dprintf("s68k_regs w3: %02x @%06x", (u8)d, SekPc); d &= 0x1d; if (d&4) { - d |= Pico_mcd->s68k_regs[3]&0xc2; - if ((d ^ Pico_mcd->s68k_regs[3]) & 5) d &= ~2; // in case of mode or bank change we clear DMNA (m68k req) bit + d |= dold&0xc2; + if ((d ^ dold) & 5) d &= ~2; // in case of mode or bank change we clear DMNA (m68k req) bit + if (!(dold & 4)) { + dprintf("wram mode 2M->1M"); + wram_2M_to_1M(Pico_mcd->word_ram2M); + } } else { d |= Pico_mcd->s68k_regs[3]&0xc3; if (d&1) d &= ~2; // return word RAM to m68k in 2M mode + if (dold & 4) { + dprintf("wram mode 1M->2M"); + wram_1M_to_2M(Pico_mcd->word_ram2M); + } } break; + } case 4: dprintf("s68k CDC dest: %x", d&7); Pico_mcd->s68k_regs[4] = (Pico_mcd->s68k_regs[4]&0xC0) | (d&7); // CDC mode @@ -251,7 +264,7 @@ static void s68k_reg_write8(u32 a, u32 d) if ((a&0x1f0) == 0x10 || (a >= 0x38 && a < 0x42)) { - dprintf("s68k: invalid write @ %02x?", a); + dprintf("s68k FIXME: invalid write @ %02x?", a); return; } @@ -260,200 +273,33 @@ static void s68k_reg_write8(u32 a, u32 d) - - -static int PadRead(int i) -{ - int pad=0,value=0,TH; - pad=~PicoPad[i]; // Get inverse of pad MXYZ SACB RLDU - TH=Pico.ioports[i+1]&0x40; - - if(PicoOpt & 0x20) { // 6 button gamepad enabled - int phase = Pico.m.padTHPhase[i]; - - if(phase == 2 && !TH) { - value=(pad&0xc0)>>2; // ?0SA 0000 - goto end; - } else if(phase == 3 && TH) { - value=(pad&0x30)|((pad>>8)&0xf); // ?1CB MXYZ - goto end; - } else if(phase == 3 && !TH) { - value=((pad&0xc0)>>2)|0x0f; // ?0SA 1111 - goto end; - } - } - - if(TH) value=(pad&0x3f); // ?1CB RLDU - else value=((pad&0xc0)>>2)|(pad&3); // ?0SA 00DU - - end: - - // orr the bits, which are set as output - value |= Pico.ioports[i+1]&Pico.ioports[i+4]; - - return value; // will mirror later -} - -static u8 z80Read8(u32 a) -{ - if(Pico.m.z80Run&1) return 0; - - a&=0x1fff; - - if(!(PicoOpt&4)) { - // Z80 disabled, do some faking - static u8 zerosent = 0; - if(a == Pico.m.z80_lastaddr) { // probably polling something - u8 d = Pico.m.z80_fakeval; - if((d & 0xf) == 0xf && !zerosent) { - d = 0; zerosent = 1; - } else { - Pico.m.z80_fakeval++; - zerosent = 0; - } - return d; - } else { - Pico.m.z80_fakeval = 0; - } - } - - Pico.m.z80_lastaddr = (u16) a; - return Pico.zram[a]; -} - - -// for nonstandard reads -static u32 UnusualRead16(u32 a, int realsize) -{ - u32 d=0; - - dprintf("unusual r%i: %06x @%06x", realsize&~1, (a&0xfffffe)+(realsize&1), SekPc); - - - dprintf("ret = %04x", d); - return d; -} - -static u32 OtherRead16(u32 a, int realsize) +static u32 OtherRead16End(u32 a, int realsize) { u32 d=0; - if ((a&0xff0000)==0xa00000) { - if ((a&0x4000)==0x0000) { d=z80Read8(a); d|=d<<8; goto end; } // Z80 ram (not byteswaped) - if ((a&0x6000)==0x4000) { if(PicoOpt&1) d=YM2612Read(); else d=Pico.m.rotate++&3; goto end; } // 0x4000-0x5fff, Fudge if disabled - d=0xffff; goto end; - } - if ((a&0xffffe0)==0xa10000) { // I/O ports - a=(a>>1)&0xf; - switch(a) { - case 0: d=Pico.m.hardware; break; // Hardware value (Version register) - case 1: d=PadRead(0); d|=Pico.ioports[1]&0x80; break; - case 2: d=PadRead(1); d|=Pico.ioports[2]&0x80; break; - default: d=Pico.ioports[a]; break; // IO ports can be used as RAM - } - d|=d<<8; - goto end; - } - // |=0x80 for Shadow of the Beast & Super Offroad; rotate fakes next fetched instruction for Time Killers - if (a==0xa11100) { d=((Pico.m.z80Run&1)<<8)|0x8000|Pico.m.rotate++; goto end; } - - if ((a&0xe700e0)==0xc00000) { d=PicoVideoRead(a); goto end; } - if ((a&0xffffc0)==0xa12000) { d=m68k_reg_read16(a); goto end; } - d = UnusualRead16(a, realsize); + dprintf("m68k FIXME: unusual r%i: %06x @%06x", realsize&~1, (a&0xfffffe)+(realsize&1), SekPc); end: return d; } -//extern UINT32 mz80GetRegisterValue(void *, UINT32); -static void OtherWrite8(u32 a,u32 d,int realsize) +static void OtherWrite8End(u32 a, u32 d, int realsize) { - if ((a&0xe700f9)==0xc00011||(a&0xff7ff9)==0xa07f11) { if(PicoOpt&2) SN76496Write(d); return; } // PSG Sound - if ((a&0xff4000)==0xa00000) { if(!(Pico.m.z80Run&1)) Pico.zram[a&0x1fff]=(u8)d; return; } // Z80 ram - if ((a&0xff6000)==0xa04000) { if(PicoOpt&1) emustatus|=YM2612Write(a&3, d); return; } // FM Sound - if ((a&0xffffe0)==0xa10000) { // I/O ports - a=(a>>1)&0xf; - // 6 button gamepad: if TH went from 0 to 1, gamepad changes state - if(PicoOpt&0x20) { - if(a==1) { - Pico.m.padDelay[0] = 0; - if(!(Pico.ioports[1]&0x40) && (d&0x40)) Pico.m.padTHPhase[0]++; - } - else if(a==2) { - Pico.m.padDelay[1] = 0; - if(!(Pico.ioports[2]&0x40) && (d&0x40)) Pico.m.padTHPhase[1]++; - } - } - Pico.ioports[a]=(u8)d; // IO ports can be used as RAM - return; - } - if (a==0xa11100) { - extern int z80startCycle, z80stopCycle; - //int lineCycles=(488-SekCyclesLeft)&0x1ff; - d&=1; d^=1; - if(!d) { - // hack: detect a nasty situation where Z80 was enabled and disabled in the same 68k timeslice (Golden Axe III) - if((PicoOpt&4) && Pico.m.z80Run==1) z80_run(20); - z80stopCycle = SekCyclesDone(); - //z80ExtraCycles += (lineCycles>>1)-(lineCycles>>5); // only meaningful in PicoFrameHints() - } else { - z80startCycle = SekCyclesDone(); - //if(Pico.m.scanline != -1) - //z80ExtraCycles -= (lineCycles>>1)-(lineCycles>>5)+16; - } - //dprintf("set_zrun: %i [%i|%i] zPC=%04x @%06x", d, Pico.m.scanline, SekCyclesDone(), mz80GetRegisterValue(NULL, 0), SekPc); - Pico.m.z80Run=(u8)d; return; - } - if (a==0xa11200) { if(!(d&1)) z80_reset(); return; } - - if ((a&0xff7f00)==0xa06000) // Z80 BANK register - { - Pico.m.z80_bank68k>>=1; - Pico.m.z80_bank68k|=(d&1)<<8; - Pico.m.z80_bank68k&=0x1ff; // 9 bits and filled in the new top one - return; - } - - if ((a&0xe700e0)==0xc00000) { PicoVideoWrite(a,(u16)(d|(d<<8))); return; } // Byte access gets mirrored - if ((a&0xffffc0)==0xa12000) { m68k_reg_write8(a, d); return; } - dprintf("strange w%i: %06x, %08x @%06x", realsize, a&0xffffff, d, SekPc); + dprintf("m68k FIXME: strange w%i: %06x, %08x @%06x", realsize, a&0xffffff, d, SekPc); } -static void OtherWrite16(u32 a,u32 d) -{ - if ((a&0xe700e0)==0xc00000) { PicoVideoWrite(a,(u16)d); return; } - if ((a&0xff4000)==0xa00000) { if(!(Pico.m.z80Run&1)) Pico.zram[a&0x1fff]=(u8)(d>>8); return; } // Z80 ram (MSB only) - - if ((a&0xffffe0)==0xa10000) { // I/O ports - a=(a>>1)&0xf; - // 6 button gamepad: if TH went from 0 to 1, gamepad changes state - if(PicoOpt&0x20) { - if(a==1) { - Pico.m.padDelay[0] = 0; - if(!(Pico.ioports[1]&0x40) && (d&0x40)) Pico.m.padTHPhase[0]++; - } - else if(a==2) { - Pico.m.padDelay[1] = 0; - if(!(Pico.ioports[2]&0x40) && (d&0x40)) Pico.m.padTHPhase[1]++; - } - } - Pico.ioports[a]=(u8)d; // IO ports can be used as RAM - return; - } - if (a==0xa11100) { OtherWrite8(a, d>>8, 16); return; } - if (a==0xa11200) { if(!(d&0x100)) z80_reset(); return; } - OtherWrite8(a, d>>8, 16); - OtherWrite8(a+1,d&0xff, 16); -} +#undef _ASM_MEMORY_C +#include "../MemoryCmn.c" + // ----------------------------------------------------------------- // Read Rom and read Ram @@ -495,16 +341,14 @@ u8 PicoReadM68k8(u32 a) if ((a&0xfc0000)==0x200000) { dprintf("m68k_wram r8: [%06x] @%06x", a, SekPc); if (Pico_mcd->s68k_regs[3]&4) { // 1M mode? - if (a >= 0x220000) { - dprintf("cell"); - } else { - a=((a&0x1fffe)<<1)|(a&1); - if (Pico_mcd->s68k_regs[3]&1) a+=2; - d = Pico_mcd->word_ram[a^1]; - } + int bank = Pico_mcd->s68k_regs[3]&1; + if (a >= 0x220000) + a = (a&3) | (cell_map(a >> 2) << 2); // cell arranged + else a &= 0x1ffff; + d = Pico_mcd->word_ram1M[bank][a^1]; } else { // allow access in any mode, like Gens does - d = Pico_mcd->word_ram[(a^1)&0x3ffff]; + d = Pico_mcd->word_ram2M[(a^1)&0x3ffff]; } dprintf("ret = %02x", (u8)d); goto end; @@ -550,16 +394,14 @@ u16 PicoReadM68k16(u32 a) if ((a&0xfc0000)==0x200000) { dprintf("m68k_wram r16: [%06x] @%06x", a, SekPc); if (Pico_mcd->s68k_regs[3]&4) { // 1M mode? - if (a >= 0x220000) { - dprintf("cell"); - } else { - a=((a&0x1fffe)<<1); - if (Pico_mcd->s68k_regs[3]&1) a+=2; - d = *(u16 *)(Pico_mcd->word_ram+a); - } + int bank = Pico_mcd->s68k_regs[3]&1; + if (a >= 0x220000) + a = (a&2) | (cell_map(a >> 2) << 2); // cell arranged + else a &= 0x1fffe; + d = *(u16 *)(Pico_mcd->word_ram1M[bank]+a); } else { // allow access in any mode, like Gens does - d = *(u16 *)(Pico_mcd->word_ram+(a&0x3fffe)); + d = *(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe)); } dprintf("ret = %04x", d); goto end; @@ -604,17 +446,20 @@ u32 PicoReadM68k32(u32 a) if ((a&0xfc0000)==0x200000) { dprintf("m68k_wram r32: [%06x] @%06x", a, SekPc); if (Pico_mcd->s68k_regs[3]&4) { // 1M mode? - if (a >= 0x220000) { - dprintf("cell"); + int bank = Pico_mcd->s68k_regs[3]&1; + if (a >= 0x220000) { // cell arranged + u32 a1, a2; + a1 = (a&2) | (cell_map(a >> 2) << 2); + if (a&2) a2 = cell_map((a+2) >> 2) << 2; + else a2 = a1 + 2; + d = *(u16 *)(Pico_mcd->word_ram1M[bank]+a1) << 16; + d |= *(u16 *)(Pico_mcd->word_ram1M[bank]+a2); } else { - a=((a&0x1fffe)<<1); - if (Pico_mcd->s68k_regs[3]&1) a+=2; - d = *(u16 *)(Pico_mcd->word_ram+a) << 16; - d |= *(u16 *)(Pico_mcd->word_ram+a+4); + u16 *pm=(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe)); d = (pm[0]<<16)|pm[1]; } } else { // allow access in any mode, like Gens does - u16 *pm=(u16 *)(Pico_mcd->word_ram+(a&0x3fffe)); d = (pm[0]<<16)|pm[1]; + u16 *pm=(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe)); d = (pm[0]<<16)|pm[1]; } dprintf("ret = %08x", d); goto end; @@ -666,16 +511,14 @@ void PicoWriteM68k8(u32 a,u8 d) if ((a&0xfc0000)==0x200000) { dprintf("m68k_wram w8: [%06x] %02x @%06x", a, d, SekPc); if (Pico_mcd->s68k_regs[3]&4) { // 1M mode? - if (a >= 0x220000) { - dprintf("cell"); - } else { - a=((a&0x1fffe)<<1)|(a&1); - if (Pico_mcd->s68k_regs[3]&1) a+=2; - *(u8 *)(Pico_mcd->word_ram+(a^1))=d; - } + int bank = Pico_mcd->s68k_regs[3]&1; + if (a >= 0x220000) + a = (a&3) | (cell_map(a >> 2) << 2); // cell arranged + else a &= 0x1ffff; + *(u8 *)(Pico_mcd->word_ram1M[bank]+(a^1))=d; } else { // allow access in any mode, like Gens does - *(u8 *)(Pico_mcd->word_ram+((a^1)&0x3ffff))=d; + *(u8 *)(Pico_mcd->word_ram2M+((a^1)&0x3ffff))=d; } return; } @@ -712,16 +555,14 @@ void PicoWriteM68k16(u32 a,u16 d) if ((a&0xfc0000)==0x200000) { dprintf("m68k_wram w16: [%06x] %04x @%06x", a, d, SekPc); if (Pico_mcd->s68k_regs[3]&4) { // 1M mode? - if (a >= 0x220000) { - dprintf("cell"); - } else { - a=((a&0x1fffe)<<1); - if (Pico_mcd->s68k_regs[3]&1) a+=2; - *(u16 *)(Pico_mcd->word_ram+a)=d; - } + int bank = Pico_mcd->s68k_regs[3]&1; + if (a >= 0x220000) + a = (a&2) | (cell_map(a >> 2) << 2); // cell arranged + else a &= 0x1fffe; + *(u16 *)(Pico_mcd->word_ram1M[bank]+a)=d; } else { // allow access in any mode, like Gens does - *(u16 *)(Pico_mcd->word_ram+(a&0x3fffe))=d; + *(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe))=d; } return; } @@ -762,17 +603,21 @@ void PicoWriteM68k32(u32 a,u32 d) if (d != 0) // don't log clears dprintf("m68k_wram w32: [%06x] %08x @%06x", a, d, SekPc); if (Pico_mcd->s68k_regs[3]&4) { // 1M mode? - if (a >= 0x220000) { - dprintf("cell"); + int bank = Pico_mcd->s68k_regs[3]&1; + if (a >= 0x220000) { // cell arranged + u32 a1, a2; + a1 = (a&2) | (cell_map(a >> 2) << 2); + if (a&2) a2 = cell_map((a+2) >> 2) << 2; + else a2 = a1 + 2; + *(u16 *)(Pico_mcd->word_ram1M[bank]+a1) = d >> 16; + *(u16 *)(Pico_mcd->word_ram1M[bank]+a2) = d; } else { - a=((a&0x1fffe)<<1); - if (Pico_mcd->s68k_regs[3]&1) a+=2; - *(u16 *)(Pico_mcd->word_ram+a) = d>>16; - *(u16 *)(Pico_mcd->word_ram+a+4) = d; + u16 *pm=(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe)); + pm[0]=(u16)(d>>16); pm[1]=(u16)d; } } else { // allow access in any mode, like Gens does - u16 *pm=(u16 *)(Pico_mcd->word_ram+(a&0x3fffe)); + u16 *pm=(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe)); pm[0]=(u16)(d>>16); pm[1]=(u16)d; } return; @@ -815,24 +660,30 @@ u8 PicoReadS68k8(u32 a) // word RAM (2M area) if ((a&0xfc0000)==0x080000) { // 080000-0bffff + // test: batman returns dprintf("s68k_wram2M r8: [%06x] @%06x", a, SekPcS68k); - if (Pico_mcd->s68k_regs[3]&4) { // 1M mode? - // TODO (decode) - dprintf("(decode)"); + if (Pico_mcd->s68k_regs[3]&4) { // 1M decode mode? + int bank = !(Pico_mcd->s68k_regs[3]&1); + d = Pico_mcd->word_ram1M[bank][((a>>1)^1)&0x1ffff]; + if (a&1) d &= 0x0f; + else d >>= 4; + dprintf("FIXME: decode"); } else { // allow access in any mode, like Gens does - d = Pico_mcd->word_ram[(a^1)&0x3ffff]; + d = Pico_mcd->word_ram2M[(a^1)&0x3ffff]; } dprintf("ret = %02x", (u8)d); goto end; } // word RAM (1M area) - if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // 0c0000-0dffff + if ((a&0xfe0000)==0x0c0000) { // 0c0000-0dffff + int bank; dprintf("s68k_wram1M r8: [%06x] @%06x", a, SekPcS68k); - a=((a&0x1fffe)<<1)|(a&1); - if (!(Pico_mcd->s68k_regs[3]&1)) a+=2; - d = Pico_mcd->word_ram[a^1]; + if (!(Pico_mcd->s68k_regs[3]&4)) + dprintf("s68k_wram1M FIXME: wrong mode"); + bank = !(Pico_mcd->s68k_regs[3]&1); + d = Pico_mcd->word_ram1M[bank][(a^1)&0x1ffff]; dprintf("ret = %02x", (u8)d); goto end; } @@ -895,23 +746,27 @@ u16 PicoReadS68k16(u32 a) // word RAM (2M area) if ((a&0xfc0000)==0x080000) { // 080000-0bffff dprintf("s68k_wram2M r16: [%06x] @%06x", a, SekPcS68k); - if (Pico_mcd->s68k_regs[3]&4) { // 1M mode? - // TODO (decode) - dprintf("(decode)"); + if (Pico_mcd->s68k_regs[3]&4) { // 1M decode mode? + int bank = !(Pico_mcd->s68k_regs[3]&1); + d = Pico_mcd->word_ram1M[bank][((a>>1)^1)&0x1ffff]; + d |= d << 4; d &= ~0xf0; + dprintf("FIXME: decode"); } else { // allow access in any mode, like Gens does - d = *(u16 *)(Pico_mcd->word_ram+(a&0x3fffe)); + d = *(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe)); } dprintf("ret = %04x", d); goto end; } // word RAM (1M area) - if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // 0c0000-0dffff + if ((a&0xfe0000)==0x0c0000) { // 0c0000-0dffff + int bank; dprintf("s68k_wram1M r16: [%06x] @%06x", a, SekPcS68k); - a=((a&0x1fffe)<<1); - if (!(Pico_mcd->s68k_regs[3]&1)) a+=2; - d = *(u16 *)(Pico_mcd->word_ram+a); + if (!(Pico_mcd->s68k_regs[3]&4)) + dprintf("s68k_wram1M FIXME: wrong mode"); + bank = !(Pico_mcd->s68k_regs[3]&1); + d = *(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe)); dprintf("ret = %04x", d); goto end; } @@ -979,24 +834,29 @@ u32 PicoReadS68k32(u32 a) // word RAM (2M area) if ((a&0xfc0000)==0x080000) { // 080000-0bffff dprintf("s68k_wram2M r32: [%06x] @%06x", a, SekPcS68k); - if (Pico_mcd->s68k_regs[3]&4) { // 1M mode? - // TODO (decode) - dprintf("(decode)"); + if (Pico_mcd->s68k_regs[3]&4) { // 1M decode mode? + int bank = !(Pico_mcd->s68k_regs[3]&1); + a >>= 1; + d = Pico_mcd->word_ram1M[bank][((a+0)^1)&0x1ffff] << 16; + d |= Pico_mcd->word_ram1M[bank][((a+1)^1)&0x1ffff]; + d |= d << 4; d &= 0x0f0f0f0f; + dprintf("FIXME: decode"); } else { // allow access in any mode, like Gens does - u16 *pm=(u16 *)(Pico_mcd->word_ram+(a&0x3fffe)); d = (pm[0]<<16)|pm[1]; + u16 *pm=(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe)); d = (pm[0]<<16)|pm[1]; } dprintf("ret = %08x", d); goto end; } // word RAM (1M area) - if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // 0c0000-0dffff + if ((a&0xfe0000)==0x0c0000) { // 0c0000-0dffff + int bank; dprintf("s68k_wram1M r32: [%06x] @%06x", a, SekPcS68k); - a=((a&0x1fffe)<<1); - if (!(Pico_mcd->s68k_regs[3]&1)) a+=2; - d = *(u16 *)(Pico_mcd->word_ram+a) << 16; - d |= *(u16 *)(Pico_mcd->word_ram+a+4); + if (!(Pico_mcd->s68k_regs[3]&4)) + dprintf("s68k_wram1M FIXME: wrong mode"); + bank = !(Pico_mcd->s68k_regs[3]&1); + u16 *pm=(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe)); d = (pm[0]<<16)|pm[1]; dprintf("ret = %08x", d); goto end; } @@ -1077,23 +937,28 @@ void PicoWriteS68k8(u32 a,u8 d) // word RAM (2M area) if ((a&0xfc0000)==0x080000) { // 080000-0bffff dprintf("s68k_wram2M w8: [%06x] %02x @%06x", a, d, SekPcS68k); - if (Pico_mcd->s68k_regs[3]&4) { // 1M mode? - // TODO (decode) - dprintf("(decode)"); + if (Pico_mcd->s68k_regs[3]&4) { // 1M decode mode? + int bank = !(Pico_mcd->s68k_regs[3]&1); + if (a&1) d &= 0x0f; + else d >>= 4; + Pico_mcd->word_ram1M[bank][((a>>1)^1)&0x1ffff]=d; + dprintf("FIXME: decode"); } else { // allow access in any mode, like Gens does - *(u8 *)(Pico_mcd->word_ram+((a^1)&0x3ffff))=d; + *(u8 *)(Pico_mcd->word_ram2M+((a^1)&0x3ffff))=d; } return; } // word RAM (1M area) - if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // 0c0000-0dffff + if ((a&0xfe0000)==0x0c0000) { // 0c0000-0dffff + int bank; if (d) dprintf("s68k_wram1M w8: [%06x] %02x @%06x", a, d, SekPcS68k); - a=((a&0x1fffe)<<1)|(a&1); - if (!(Pico_mcd->s68k_regs[3]&1)) a+=2; - *(u8 *)(Pico_mcd->word_ram+(a^1))=d; + if (!(Pico_mcd->s68k_regs[3]&4)) + dprintf("s68k_wram1M FIXME: wrong mode"); + bank = !(Pico_mcd->s68k_regs[3]&1); + *(u8 *)(Pico_mcd->word_ram1M[bank]+((a^1)&0x1ffff))=d; return; } @@ -1152,23 +1017,27 @@ void PicoWriteS68k16(u32 a,u16 d) // word RAM (2M area) if ((a&0xfc0000)==0x080000) { // 080000-0bffff dprintf("s68k_wram2M w16: [%06x] %04x @%06x", a, d, SekPcS68k); - if (Pico_mcd->s68k_regs[3]&4) { // 1M mode? - // TODO (decode) - dprintf("(decode)"); + if (Pico_mcd->s68k_regs[3]&4) { // 1M decode mode? + int bank = !(Pico_mcd->s68k_regs[3]&1); + d &= ~0xf0; d |= d >> 8; + Pico_mcd->word_ram1M[bank][((a>>1)^1)&0x1ffff] = d; + dprintf("FIXME: decode"); } else { // allow access in any mode, like Gens does - *(u16 *)(Pico_mcd->word_ram+(a&0x3fffe))=d; + *(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe))=d; } return; } // word RAM (1M area) - if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // 0c0000-0dffff + if ((a&0xfe0000)==0x0c0000) { // 0c0000-0dffff + int bank; if (d) dprintf("s68k_wram1M w16: [%06x] %04x @%06x", a, d, SekPcS68k); - a=((a&0x1fffe)<<1); - if (!(Pico_mcd->s68k_regs[3]&1)) a+=2; - *(u16 *)(Pico_mcd->word_ram+a)=d; + if (!(Pico_mcd->s68k_regs[3]&4)) + dprintf("s68k_wram1M FIXME: wrong mode"); + bank = !(Pico_mcd->s68k_regs[3]&1); + *(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe))=d; return; } @@ -1230,25 +1099,32 @@ void PicoWriteS68k32(u32 a,u32 d) // word RAM (2M area) if ((a&0xfc0000)==0x080000) { // 080000-0bffff dprintf("s68k_wram2M w32: [%06x] %08x @%06x", a, d, SekPcS68k); - if (Pico_mcd->s68k_regs[3]&4) { // 1M mode? - // TODO (decode) - dprintf("(decode)"); + if (Pico_mcd->s68k_regs[3]&4) { // 1M decode mode? + int bank = !(Pico_mcd->s68k_regs[3]&1); + a >>= 1; + d &= 0x0f0f0f0f; d |= d >> 4; + Pico_mcd->word_ram1M[bank][((a+0)^1)&0x1ffff] = d >> 16; + Pico_mcd->word_ram1M[bank][((a+1)^1)&0x1ffff] = d; + dprintf("FIXME: decode"); } else { // allow access in any mode, like Gens does - u16 *pm=(u16 *)(Pico_mcd->word_ram+(a&0x3fffe)); + u16 *pm=(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe)); pm[0]=(u16)(d>>16); pm[1]=(u16)d; } return; } // word RAM (1M area) - if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // 0c0000-0dffff + if ((a&0xfe0000)==0x0c0000) { // 0c0000-0dffff + int bank; + u16 *pm; if (d) dprintf("s68k_wram1M w32: [%06x] %08x @%06x", a, d, SekPcS68k); - a=((a&0x1fffe)<<1); - if (!(Pico_mcd->s68k_regs[3]&1)) a+=2; - *(u16 *)(Pico_mcd->word_ram+a) = d>>16; - *(u16 *)(Pico_mcd->word_ram+a+4) = d; + if (!(Pico_mcd->s68k_regs[3]&4)) + dprintf("s68k_wram1M FIXME: wrong mode"); + bank = !(Pico_mcd->s68k_regs[3]&1); + pm=(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe)); + pm[0]=(u16)(d>>16); pm[1]=(u16)d; return; } @@ -1290,28 +1166,26 @@ void PicoWriteS68k32(u32 a,u32 d) #if defined(EMU_C68K) static __inline int PicoMemBaseM68k(u32 pc) { - int membase=0; + if ((pc&0xe00000)==0xe00000) + return (int)Pico.ram-(pc&0xff0000); // Program Counter in Ram if (pc < 0x20000) + return (int)Pico_mcd->bios; // Program Counter in BIOS + + if ((pc&0xfc0000)==0x200000) { - membase=(int)Pico_mcd->bios; // Program Counter in BIOS - } - else if ((pc&0xe00000)==0xe00000) - { - membase=(int)Pico.ram-(pc&0xff0000); // Program Counter in Ram - } - else if ((pc&0xfc0000)==0x200000 && !(Pico_mcd->s68k_regs[3]&4)) - { - membase=(int)Pico_mcd->word_ram-0x200000; // Program Counter in Word Ram - } - else - { - // Error - Program Counter is invalid - dprintf("m68k: unhandled jump to %06x", pc); - membase=(int)Pico.rom; + if (!(Pico_mcd->s68k_regs[3]&4)) + return (int)Pico_mcd->word_ram2M - 0x200000; // Program Counter in Word Ram + if (pc < 0x220000) { + int bank = (Pico_mcd->s68k_regs[3]&1); + return (int)Pico_mcd->word_ram1M[bank] - 0x200000; + } } - return membase; + // Error - Program Counter is invalid + dprintf("m68k FIXME: unhandled jump to %06x", pc); + + return (int)Pico_mcd->bios; } @@ -1328,16 +1202,21 @@ static u32 PicoCheckPcM68k(u32 pc) static __inline int PicoMemBaseS68k(u32 pc) { - int membase; + if (pc < 0x80000) // PRG RAM + return (int)Pico_mcd->prg_ram; - membase=(int)Pico_mcd->prg_ram; // Program Counter in Prg RAM - if (pc >= 0x80000) - { - // Error - Program Counter is invalid - dprintf("s68k: unhandled jump to %06x", pc); + if ((pc&0xfc0000)==0x080000) // WORD RAM 2M area (assume we are in the right mode..) + return (int)Pico_mcd->word_ram2M - 0x080000; + + if ((pc&0xfe0000)==0x0c0000) { // word RAM 1M area + int bank = !(Pico_mcd->s68k_regs[3]&1); + return (int)Pico_mcd->word_ram1M[bank] - 0x0c0000; } - return membase; + // Error - Program Counter is invalid + dprintf("s68k FIXME: unhandled jump to %06x", pc); + + return (int)Pico_mcd->prg_ram; } @@ -1402,13 +1281,25 @@ unsigned int m68k_read_pcrelative_CD8 (unsigned int a) { a&=0xffffff; if(m68ki_cpu_p == &PicoS68kCPU) { if (a < 0x80000) return *(u8 *)(Pico_mcd->prg_ram+(a^1)); // PRG Ram - dprintf("s68k_read_pcrelative_CD8: can't handle %06x", a); + if ((a&0xfc0000)==0x080000 && !(Pico_mcd->s68k_regs[3]&4)) // word RAM (2M area: 080000-0bffff) + return *(u8 *)(Pico_mcd->word_ram2M+((a^1)&0x3ffff)); + if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // word RAM (1M area: 0c0000-0dffff) + int bank = !(Pico_mcd->s68k_regs[3]&1); + return *(u8 *)(Pico_mcd->word_ram1M[bank]+((a^1)&0x1ffff)); + } + dprintf("s68k_read_pcrelative_CD8 FIXME: can't handle %06x", a); } else { - if(a<0x20000) return *(u8 *)(Pico.rom+(a^1)); // Bios if((a&0xe00000)==0xe00000) return *(u8 *)(Pico.ram+((a^1)&0xffff)); // Ram - if(!(Pico_mcd->s68k_regs[3]&4) && (a&0xfc0000)==0x200000) - return Pico_mcd->word_ram[(a^1)&0x3fffe]; - dprintf("m68k_read_pcrelative_CD8: can't handle %06x", a); + if(a<0x20000) return *(u8 *)(Pico.rom+(a^1)); // Bios + if((a&0xfc0000)==0x200000) { // word RAM + if(!(Pico_mcd->s68k_regs[3]&4)) // 2M? + return *(u8 *)(Pico_mcd->word_ram2M+((a^1)&0x3ffff)); + else if (a < 0x220000) { + int bank = Pico_mcd->s68k_regs[3]&1; + return *(u8 *)(Pico_mcd->word_ram1M[bank]+((a^1)&0x1ffff)); + } + } + dprintf("m68k_read_pcrelative_CD8 FIXME: can't handle %06x", a); } return 0;//(u8) lastread_d; } @@ -1416,27 +1307,54 @@ unsigned int m68k_read_pcrelative_CD16(unsigned int a) { a&=0xffffff; if(m68ki_cpu_p == &PicoS68kCPU) { if (a < 0x80000) return *(u16 *)(Pico_mcd->prg_ram+(a&~1)); // PRG Ram - dprintf("s68k_read_pcrelative_CD16: can't handle %06x", a); + if ((a&0xfc0000)==0x080000 && !(Pico_mcd->s68k_regs[3]&4)) // word RAM (2M area: 080000-0bffff) + return *(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe)); + if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // word RAM (1M area: 0c0000-0dffff) + int bank = !(Pico_mcd->s68k_regs[3]&1); + return *(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe)); + } + dprintf("s68k_read_pcrelative_CD16 FIXME: can't handle %06x", a); } else { - if(a<0x20000) return *(u16 *)(Pico.rom+(a&~1)); // Bios if((a&0xe00000)==0xe00000) return *(u16 *)(Pico.ram+(a&0xfffe)); // Ram - if(!(Pico_mcd->s68k_regs[3]&4) && (a&0xfc0000)==0x200000) - return *(u16 *)(Pico_mcd->word_ram+(a&0x3fffe)); - dprintf("m68k_read_pcrelative_CD16: can't handle %06x", a); + if(a<0x20000) return *(u16 *)(Pico.rom+(a&~1)); // Bios + if((a&0xfc0000)==0x200000) { // word RAM + if(!(Pico_mcd->s68k_regs[3]&4)) // 2M? + return *(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe)); + else if (a < 0x220000) { + int bank = Pico_mcd->s68k_regs[3]&1; + return *(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe)); + } + } + dprintf("m68k_read_pcrelative_CD16 FIXME: can't handle %06x", a); } return 0; } unsigned int m68k_read_pcrelative_CD32(unsigned int a) { + u16 *pm; a&=0xffffff; if(m68ki_cpu_p == &PicoS68kCPU) { if (a < 0x80000) { u16 *pm=(u16 *)(Pico_mcd->prg_ram+(a&~1)); return (pm[0]<<16)|pm[1]; } // PRG Ram - dprintf("s68k_read_pcrelative_CD32: can't handle %06x", a); + if ((a&0xfc0000)==0x080000 && !(Pico_mcd->s68k_regs[3]&4)) // word RAM (2M area: 080000-0bffff) + { pm=(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe)); return (pm[0]<<16)|pm[1]; } + if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // word RAM (1M area: 0c0000-0dffff) + int bank = !(Pico_mcd->s68k_regs[3]&1); + pm=(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe)); + return (pm[0]<<16)|pm[1]; + } + dprintf("s68k_read_pcrelative_CD32 FIXME: can't handle %06x", a); } else { - if(a<0x20000) { u16 *pm=(u16 *)(Pico.rom+(a&~1)); return (pm[0]<<16)|pm[1]; } if((a&0xe00000)==0xe00000) { u16 *pm=(u16 *)(Pico.ram+(a&0xfffe)); return (pm[0]<<16)|pm[1]; } // Ram - if(!(Pico_mcd->s68k_regs[3]&4) && (a&0xfc0000)==0x200000) - { u16 *pm=(u16 *)(Pico_mcd->word_ram+(a&0x3fffe)); return (pm[0]<<16)|pm[1]; } - dprintf("m68k_read_pcrelative_CD32: can't handle %06x", a); + if(a<0x20000) { u16 *pm=(u16 *)(Pico.rom+(a&~1)); return (pm[0]<<16)|pm[1]; } + if((a&0xfc0000)==0x200000) { // word RAM + if(!(Pico_mcd->s68k_regs[3]&4)) // 2M? + { pm=(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe)); return (pm[0]<<16)|pm[1]; } + else if (a < 0x220000) { + int bank = Pico_mcd->s68k_regs[3]&1; + pm=(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe)); + return (pm[0]<<16)|pm[1]; + } + } + dprintf("m68k_read_pcrelative_CD32 FIXME: can't handle %06x", a); } return 0; } diff --git a/Pico/cd/Misc.c b/Pico/cd/Misc.c index 981e71a..905e919 100644 --- a/Pico/cd/Misc.c +++ b/Pico/cd/Misc.c @@ -16,3 +16,41 @@ unsigned char formatted_bram[4*0x10] = }; +// offs | 2Mbit | 1Mbit | +// 0 | [ 2M | unused | +// 128K | bit ] | bank0 | +// 256K | unused | bank1 | + +void wram_2M_to_1M(unsigned char *m) +{ + unsigned short *m1M_b0, *m1M_b1; + unsigned int i, tmp, *m2M; + + m2M = (unsigned int *) (m + 0x40000); + m1M_b0 = (unsigned short *) m2M; + m1M_b1 = (unsigned short *) (m + 0x60000); + + for (i = 0x40000/4; i; i--) + { + tmp = *(--m2M); + *(--m1M_b0) = tmp; + *(--m1M_b1) = tmp >> 16; + } +} + +void wram_1M_to_2M(unsigned char *m) +{ + unsigned short *m1M_b0, *m1M_b1; + unsigned int i, tmp, *m2M; + + m2M = (unsigned int *) m; + m1M_b0 = (unsigned short *) (m + 0x20000); + m1M_b1 = (unsigned short *) (m + 0x40000); + + for (i = 0x40000/4; i; i--) + { + tmp = *m1M_b0++ | (*m1M_b1++ << 16); + *m2M++ = tmp; + } +} + diff --git a/Pico/cd/Pico.c b/Pico/cd/Pico.c index 770eddb..eddd878 100644 --- a/Pico/cd/Pico.c +++ b/Pico/cd/Pico.c @@ -30,9 +30,9 @@ void PicoExitMCD(void) int PicoResetMCD(int hard) { - memset(Pico_mcd->prg_ram, 0, sizeof(Pico_mcd->prg_ram)); - memset(Pico_mcd->word_ram, 0, sizeof(Pico_mcd->word_ram)); - memset(Pico_mcd->pcm_ram, 0, sizeof(Pico_mcd->pcm_ram)); + memset(Pico_mcd->prg_ram, 0, sizeof(Pico_mcd->prg_ram)); + memset(Pico_mcd->word_ram2M, 0, sizeof(Pico_mcd->word_ram2M)); + memset(Pico_mcd->pcm_ram, 0, sizeof(Pico_mcd->pcm_ram)); if (hard) { int fmt_size = sizeof(formatted_bram); memset(Pico_mcd->bram, 0, sizeof(Pico_mcd->bram)); diff --git a/Pico/cd/cell_map.c b/Pico/cd/cell_map.c new file mode 100644 index 0000000..5358a09 --- /dev/null +++ b/Pico/cd/cell_map.c @@ -0,0 +1,38 @@ + +// 64 x32 x16 x8 x4 x4 +static unsigned int cell_map(int celln) +{ + int col, row; + + switch ((celln >> 12) & 7) { // 0-0x8000 + case 0: // x32 cells + case 1: + case 2: + case 3: + col = celln >> 8; + row = celln & 0xff; + break; + case 4: // x16 + case 5: + col = celln >> 7; + row = celln & 0x7f; + row |= 0x10000 >> 8; + break; + case 6: // x8 + col = celln >> 6; + row = celln & 0x3f; + row |= 0x18000 >> 8; + break; + case 7: // x4 + col = celln >> 5; + row = celln & 0x1f; + row |= (celln & 0x7800) >> 6; + break; + default: // just to make compiler happy + col = row = 0; + break; + } + + return (col & 0x3f) + row*64; +} + diff --git a/Pico/cd/gfx_cd.c b/Pico/cd/gfx_cd.c index 06fa53c..ba1c5a7 100644 --- a/Pico/cd/gfx_cd.c +++ b/Pico/cd/gfx_cd.c @@ -146,7 +146,7 @@ unsigned int gfx_cd_read(unsigned int a) case 0x62: d = rot_comp.Reg_62; break; case 0x64: d = rot_comp.Reg_64; break; case 0x66: break; - default: dprintf("gfx_cd_read: unexpected address: %02x", a); break; + default: dprintf("gfx_cd_read FIXME: unexpected address: %02x", a); break; } dprintf("gfx_cd_read(%02x) = %04x", a, d); @@ -193,13 +193,82 @@ void gfx_cd_write(unsigned int a, unsigned int d) gfx_cd_start(); return; - default: dprintf("gfx_cd_write: unexpected address: %02x", a); return; + default: dprintf("gfx_cd_write FIXME: unexpected address: %02x", a); return; } } void gfx_cd_reset(void) { - memset(&rot_comp.Reg_58, 0, 0/*sizeof(Pico_mcd->rot_comp)*/); + memset(&rot_comp.Reg_58, 0, sizeof(rot_comp)); +} + + +// -------------------------------- + +#include "cell_map.c" + +typedef unsigned short u16; + +void DmaSlowCell(unsigned int source, unsigned int a, int len, unsigned char inc) +{ + unsigned char *base; + unsigned int asrc, a2; + u16 *r; + + base = Pico_mcd->word_ram1M[Pico_mcd->s68k_regs[3]&1]; + + switch (Pico.video.type) + { + case 1: // vram + r = Pico.vram; + for(; len; len--) + { + asrc = cell_map(source >> 2) << 2; + asrc |= source & 2; + // if(a&1) d=(d<<8)|(d>>8); // ?? + r[a>>1] = *(u16 *)(base + asrc); + source += 2; + // AutoIncrement + a=(u16)(a+inc); + } + rendstatus|=0x10; + break; + + case 3: // cram + Pico.m.dirtyPal = 1; + r = Pico.cram; + for(a2=a&0x7f; len; len--) + { + asrc = cell_map(source >> 2) << 2; + asrc |= source & 2; + r[a2>>1] = *(u16 *)(base + asrc); + source += 2; + // AutoIncrement + a2+=inc; + // good dest? + if(a2 >= 0x80) break; + } + a=(a&0xff00)|a2; + break; + + case 5: // vsram[a&0x003f]=d; + r = Pico.vsram; + for(a2=a&0x7f; len; len--) + { + asrc = cell_map(source >> 2) << 2; + asrc |= source & 2; + r[a2>>1] = *(u16 *)(base + asrc); + source += 2; + // AutoIncrement + a2+=inc; + // good dest? + if(a2 >= 0x80) break; + } + a=(a&0xff00)|a2; + break; + } + // remember addr + Pico.video.addr=(u16)a; } diff --git a/Pico/cd/gfx_cd.h b/Pico/cd/gfx_cd.h index 519f95e..c610f9d 100644 --- a/Pico/cd/gfx_cd.h +++ b/Pico/cd/gfx_cd.h @@ -40,5 +40,7 @@ void gfx_cd_write(unsigned int a, unsigned int d); void gfx_cd_reset(void); +void DmaSlowCell(unsigned int source, unsigned int a, int len, unsigned char inc); + #endif // _GFX_CD_H diff --git a/Pico/misc.s b/Pico/misc.s new file mode 100644 index 0000000..541e81b --- /dev/null +++ b/Pico/misc.s @@ -0,0 +1,101 @@ + +@ vim:filetype=armasm + + +.global memcpy16 @ unsigned short *dest, unsigned short *src, int count + +memcpy16: + eor r3, r0, r1 + tst r3, #2 + bne mcp16_cant_align + + tst r0, #2 + ldrneh r3, [r1], #2 + subne r2, r2, #1 + strneh r3, [r0], #2 + + subs r2, r2, #4 + bmi mcp16_fin + +mcp16_loop: + ldmia r1!, {r3,r12} + subs r2, r2, #4 + stmia r0!, {r3,r12} + bpl mcp16_loop + +mcp16_fin: + tst r2, #2 + ldrne r3, [r1], #4 + strne r3, [r0], #4 + ands r2, r2, #1 + bxeq lr + +mcp16_cant_align: + ldrh r3, [r1], #2 + subs r2, r2, #1 + strh r3, [r0], #2 + bne mcp16_cant_align + + bx lr + + + +.global memcpy32 @ int *dest, int *src, int count + +memcpy32: + stmfd sp!, {r4,lr} + + subs r2, r2, #4 + bmi mcp32_fin + +mcp32_loop: + ldmia r1!, {r3,r4,r12,lr} + subs r2, r2, #4 + stmia r0!, {r3,r4,r12,lr} + bpl mcp32_loop + +mcp32_fin: + tst r2, #3 + ldmeqfd sp!, {r4,pc} + tst r2, #1 + ldrne r3, [r1], #4 + strne r3, [r0], #4 + +mcp32_no_unal1: + tst r2, #2 + ldmneia r1!, {r3,r12} + ldmfd sp!, {r4,lr} + stmneia r0!, {r3,r12} + bx lr + + + +.global memset32 @ int *dest, int c, int count + +memset32: + stmfd sp!, {lr} + + mov r3, r1 + subs r2, r2, #4 + bmi mst32_fin + + mov r12,r1 + mov lr, r1 + +mst32_loop: + subs r2, r2, #4 + stmia r0!, {r1,r3,r12,lr} + bpl mst32_loop + +mst32_fin: + tst r2, #1 + strne r1, [r0], #4 + + tst r2, #2 + stmneia r0!, {r1,r3} + + ldmfd sp!, {lr} + bx lr + + + diff --git a/Pico/sound/sound.c b/Pico/sound/sound.c index 28e6dc4..cc36a44 100644 --- a/Pico/sound/sound.c +++ b/Pico/sound/sound.c @@ -248,8 +248,10 @@ int sound_render(int offset, int length) SN76496Update(PsndOut+offset, length, stereo); // Add in the stereo FM buffer - if (PicoOpt & 1) + if (PicoOpt & 1) { buf32_updated = YM2612UpdateOne(buf32, length, stereo, 1); + } else + memset32(buf32, 0, length<> 12, 0); + PicoStateProgressCB = NULL; } reset_timing = 1; @@ -1263,20 +1272,11 @@ size_t gzWrite2(void *p, size_t _size, size_t _n, void *file) } -static void emu_state_cb(const char *str) -{ - clearArea(0); - blit("", str); -} - int emu_SaveLoadGame(int load, int sram) { int ret = 0; char saveFname[512]; - PicoStateProgressCB = emu_state_cb; - gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2); - // make save filename romfname_ext(saveFname, ""); if(sram) strcat(saveFname, (PicoMCD&1) ? ".brm" : ".srm"); diff --git a/platform/gp2x/version.h b/platform/gp2x/version.h index a4d411f..0645b77 100644 --- a/platform/gp2x/version.h +++ b/platform/gp2x/version.h @@ -1,2 +1,2 @@ -#define VERSION "1.14" +#define VERSION "1.15" -- 2.39.2