mirror of
https://github.com/RaySollium99/picodrive.git
synced 2025-09-05 07:17:45 -04:00
partial gmv implementation
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@6 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz
parent
4f67228034
commit
312e9ce192
8 changed files with 109 additions and 48 deletions
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@ -267,13 +267,16 @@ u32 OtherRead16(u32 a, int realsize)
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}
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// |=0x80 for Shadow of the Beast & Super Offroad; rotate fakes next fetched instruction for Time Killers
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if (a==0xa11100) {
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extern int z80stopCycle; // TODO: tidy
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d=Pico.m.z80Run&1;
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#if 0
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if (!d) {
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// do we need this?
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extern int z80stopCycle; // TODO: tidy
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int stop_before = SekCyclesDone() - z80stopCycle;
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if (stop_before > 0 && stop_before <= 16*2) // Gens uses 16 here
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if (stop_before > 0 && stop_before <= 16) // Gens uses 16 here
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d = 1; // bus not yet available
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}
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#endif
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d=(d<<8)|0x8000|Pico.m.rotate++;
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dprintf("get_zrun: %04x [%i|%i] @%06x", d, Pico.m.scanline, SekCyclesDone(), SekPc);
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goto end; }
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@ -569,7 +572,9 @@ static void CPU_CALL PicoWrite8(u32 a,u8 d)
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// dprintf("w8 : %06x, %02x @%06x", a&0xffffff, d, SekPc);
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if ((a&0xe00000)==0xe00000) { u8 *pm=(u8 *)(Pico.ram+((a^1)&0xffff)); pm[0]=d; return; } // Ram
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if ((a&0xe00000)==0xe00000) {
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if((a&0xffff)==0xf62a) dprintf("(f62a) = %02x [%i|%i] @ %x", d, Pico.m.scanline, SekCyclesDone(), SekPc);
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u8 *pm=(u8 *)(Pico.ram+((a^1)&0xffff)); pm[0]=d; return; } // Ram
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a&=0xffffff;
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OtherWrite8(a,d,8);
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44
Pico/Pico.c
44
Pico/Pico.c
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@ -194,22 +194,32 @@ static int dma_timings[] = {
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9, 18, 17, 9 // ...
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};
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static void CheckDMA(void)
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static int dma_bsycles[] = {
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(488<<8)/83, (488<<8)/167, (488<<8)/166, (488<<8)/83,
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(488<<8)/102, (488<<8)/205, (488<<8)/204, (488<<8)/102,
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(488<<8)/8, (488<<8)/16, (488<<8)/15, (488<<8)/8,
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(488<<8)/9, (488<<8)/18, (488<<8)/17, (488<<8)/9
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};
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//static
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int CheckDMA(void)
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{
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int burn = 0, bytes_can = 0, dma_op = Pico.video.reg[0x17]>>6; // see gens for 00 and 01 modes
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int bytes = Pico.m.dma_bytes;
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int dma_op1;
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if(dma_op & 2) bytes_can = dma_op;
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else if(Pico.video.type!=1) bytes_can = 1; // setting dma_timings offset here according to Gens
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if(Pico.video.reg[12] & 1) bytes_can += 4; // 40 cell mode?
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if(!(Pico.video.status&8)&&(Pico.video.reg[1]&0x40)) { dma_op|=4; bytes_can += 8; } // active display?
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bytes_can = dma_timings[bytes_can];
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if(!(dma_op&2)) dma_op = (Pico.video.type==1) ? 0 : 1; // setting dma_timings offset here according to Gens
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dma_op1 = dma_op;
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if(Pico.video.reg[12] & 1) dma_op |= 4; // 40 cell mode?
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if(!(Pico.video.status&8)&&(Pico.video.reg[1]&0x40)) dma_op|=8; // active display?
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bytes_can = dma_timings[dma_op];
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if(bytes <= bytes_can) {
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if(dma_op&2) Pico.video.status&=~2; // dma no longer busy
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else {
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if(dma_op&4) burn = bytes*(((488<<8)/18 ))>>8; // have to be approximate because can't afford division..
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else burn = bytes*(((488<<8)/205))>>8;
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burn = bytes * dma_bsycles[dma_op] >> 8; // have to be approximate because can't afford division..
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//SekCycleCnt-=Pico.m.dma_endcycles;
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//Pico.m.dma_endcycles = 0;
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}
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Pico.m.dma_bytes = 0;
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} else {
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@ -217,8 +227,10 @@ static void CheckDMA(void)
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Pico.m.dma_bytes -= bytes_can;
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}
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SekCycleCnt+=burn;
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dprintf("~Dma %i op=%i can=%i burn=%i [%i|%i]", Pico.m.dma_bytes, dma_op, bytes_can, burn, Pico.m.scanline, SekCyclesDone());
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//SekCycleCnt+=burn;
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dprintf("~Dma %i op=%i can=%i burn=%i [%i|%i]", Pico.m.dma_bytes, dma_op1, bytes_can, burn, Pico.m.scanline, SekCyclesDone());
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//dprintf("~aim: %i, cnt: %i", SekCycleAim, SekCycleCnt);
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return burn;
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}
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static __inline void SekRun(int cyc)
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@ -250,7 +262,9 @@ static __inline void SekRun(int cyc)
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Pico.m.scanline, SekCyclesDone());
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}
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#endif
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//dprintf("aim: %i, cnt: %i", SekCycleAim, SekCycleCnt);
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if((cyc_do=SekCycleAim-SekCycleCnt) <= 0) return;
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//dprintf("cyc_do: %i", cyc_do);
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#if defined(EMU_C68K) && defined(EMU_M68K)
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// this means we do run-compare Cyclone vs Musashi
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SekCycleCnt+=CM_compareRun(cyc_do);
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@ -390,12 +404,14 @@ static int PicoFrameHints(void)
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// V-Interrupt:
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if (y == lines_vis)
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{
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//dprintf("vint: @ %06x [%i|%i]", SekPc, y, SekCycleCnt);
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pv->status|=0x88; // V-Int happened, go into vblank
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dprintf("vint: @ %06x [%i|%i], aim=%i cnt=%i", SekPc, y, SekCycleCnt, SekCycleAim, SekCycleCnt);
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pv->status|=0x08; // go into vblank
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if(!Pico.m.dma_bytes||(Pico.video.reg[0x17]&0x80)) {
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// there must be a gap between H and V ints, also after vblank bit set (Mazin Saga, Bram Stoker's Dracula)
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SekRun(128); SekCycleAim-=128;
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SekRun(128); SekCycleAim-=128; // 128; ?
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}
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dprintf("[%i|%i], aim=%i cnt=%i @ %x", y, SekCycleCnt, SekCycleAim, SekCycleCnt, SekPc);
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pv->status|=0x80; // V-Int happened
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pv->pending_ints|=0x20;
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if(pv->reg[1]&0x20) SekInterrupt(6);
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if(Pico.m.z80Run && (PicoOpt&4)) // ?
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@ -421,7 +437,7 @@ static int PicoFrameHints(void)
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getSamples(y);
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// Run scanline:
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if(Pico.m.dma_bytes) CheckDMA();
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if(Pico.m.dma_bytes) SekCycleCnt+=CheckDMA();
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SekRun(cycles_68k);
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if((PicoOpt&4) && Pico.m.z80Run) {
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Pico.m.z80Run|=2;
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@ -124,7 +124,8 @@ struct PicoMisc
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unsigned char sram_slave; // EEPROM slave word for X24C02 and better SRAMs
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unsigned char prot_bytes[2]; // simple protection fakeing
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unsigned short dma_bytes; //
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unsigned char pad1[6];
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unsigned char pad[2];
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unsigned int frame_count; // mainly for movies
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};
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// some assembly stuff depend on these, do not touch!
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@ -209,6 +210,7 @@ void PicoWriteCD32(unsigned int a, unsigned int d);
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extern struct Pico Pico;
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extern struct PicoSRAM SRam;
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extern int emustatus;
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int CheckDMA(void);
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// cd/Pico.c
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int PicoInitMCD(void);
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@ -81,8 +81,8 @@ static int SekUnrecognizedOpcode()
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#ifdef EMU_M68K
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static int SekIntAckM68K(int level)
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{
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if (level == 4) { Pico.video.pending_ints = 0; } // dprintf("hack: [%i|%i]", Pico.m.scanline, SekCyclesDone()); }
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else if(level == 6) { Pico.video.pending_ints &= ~0x20; } // dprintf("vack: [%i|%i]", Pico.m.scanline, SekCyclesDone()); }
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if (level == 4) { Pico.video.pending_ints = 0; dprintf("hack: [%i|%i]", Pico.m.scanline, SekCyclesDone()); }
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else if(level == 6) { Pico.video.pending_ints &= ~0x20; dprintf("vack: [%i|%i]", Pico.m.scanline, SekCyclesDone()); }
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CPU_INT_LEVEL = 0;
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return M68K_INT_ACK_AUTOVECTOR;
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}
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@ -58,6 +58,7 @@ static unsigned int VideoRead()
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return d;
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}
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#if 0
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// calculate the number of cycles 68k->VDP dma operation would take
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static int DmaSlowBurn(int len)
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{
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@ -75,6 +76,7 @@ static int DmaSlowBurn(int len)
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return burn;
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}
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#endif
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static int GetDmaLength()
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{
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@ -93,14 +95,15 @@ static void DmaSlow(int len)
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u16 *pd=0, *pdend, *r;
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unsigned int a=Pico.video.addr, a2, d;
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unsigned char inc=Pico.video.reg[0xf];
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unsigned int source, burn;
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unsigned int source; // , burn;
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source =Pico.video.reg[0x15]<<1;
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source|=Pico.video.reg[0x16]<<9;
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source|=Pico.video.reg[0x17]<<17;
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dprintf("DmaSlow[%i] %06x->%04x len %i inc=%i blank %i [%i|%i]", Pico.video.type, source, a, len, inc,
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(Pico.video.status&8)||!(Pico.video.reg[1]&0x40), Pico.m.scanline, SekCyclesDone());
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dprintf("DmaSlow[%i] %06x->%04x len %i inc=%i blank %i [%i|%i] @ %x",
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Pico.video.type, source, a, len, inc, (Pico.video.status&8)||!(Pico.video.reg[1]&0x40),
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Pico.m.scanline, SekCyclesDone(), SekPc);
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if ((source&0xe00000)==0xe00000) { pd=(u16 *)(Pico.ram+(source&0xfffe)); pdend=(u16 *)(Pico.ram+0x10000); } // Ram
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else if(source<Pico.romsize) { pd=(u16 *)(Pico.rom+(source&~1)); pdend=(u16 *)(Pico.rom+Pico.romsize); } // Rom
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@ -116,8 +119,12 @@ static void DmaSlow(int len)
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#else
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Pico.m.dma_bytes += len;
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#endif
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if(!(Pico.video.status&8))
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SekEndRun(0);
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//if(!(Pico.video.status&8))
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// SekEndRun(0);
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//Pico.m.dma_endcycles = 0;//SekCyclesLeft;
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//Pico.m.dma_endcycles -= Pico.m.dma_endcycles>>3; // hack
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SekSetCyclesLeft(SekCyclesLeft - CheckDMA());
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// CheckDMA();
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// dprintf("DmaSlow burn: %i @ %06x", burn, SekPc);
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switch (Pico.video.type)
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@ -138,8 +145,6 @@ static void DmaSlow(int len)
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break;
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case 3: // cram
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dprintf("DmaSlow[%i] %06x->%04x len %i inc=%i blank %i [%i|%i]", Pico.video.type, source, a, len, inc,
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(Pico.video.status&8)||!(Pico.video.reg[1]&0x40), Pico.m.scanline, SekCyclesDone());
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Pico.m.dirtyPal = 1;
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r = Pico.cram;
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for(a2=a&0x7f; len; len--)
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@ -314,8 +319,8 @@ void PicoVideoWrite(unsigned int a,unsigned short d)
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{
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// Register write:
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int num=(d>>8)&0x1f;
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//if(num==00) dprintf("hint_onoff: %i->%i [%i|%i] pend=%i @ %06x", (pvid->reg[0]&0x10)>>4, (d&0x10)>>4, Pico.m.scanline, SekCyclesDone(), (pvid->pending_ints&0x10)>>4, SekPc);
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//if(num==01) dprintf("vint_onoff: %i->%i [%i|%i] pend=%i @ %06x", (pvid->reg[1]&0x20)>>5, (d&0x20)>>5, Pico.m.scanline, SekCyclesDone(), (pvid->pending_ints&0x20)>>5, SekPc);
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if(num==00) dprintf("hint_onoff: %i->%i [%i|%i] pend=%i @ %06x", (pvid->reg[0]&0x10)>>4, (d&0x10)>>4, Pico.m.scanline, SekCyclesDone(), (pvid->pending_ints&0x10)>>4, SekPc);
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if(num==01) dprintf("vint_onoff: %i->%i [%i|%i] pend=%i @ %06x", (pvid->reg[1]&0x20)>>5, (d&0x20)>>5, Pico.m.scanline, SekCyclesDone(), (pvid->pending_ints&0x20)>>5, SekPc);
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//if(num==01) dprintf("set_blank: %i @ %06x [%i|%i]", !((d&0x40)>>6), SekPc, Pico.m.scanline, SekCyclesDone());
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//if(num==05) dprintf("spr_set: %i @ %06x [%i|%i]", (unsigned char)d, SekPc, Pico.m.scanline, SekCyclesDone());
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//if(num==10) dprintf("hint_set: %i @ %06x [%i|%i]", (unsigned char)d, SekPc, Pico.m.scanline, SekCyclesDone());
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@ -55,7 +55,6 @@ static int combo_keys = 0, combo_acts = 0; // keys and actions which need button
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static int gp2x_old_gamma = 100;
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static unsigned char *movie_data = NULL;
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static int movie_size = 0;
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int frame_count = 0;
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unsigned char *framebuff = 0; // temporary buffer for alt renderer
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int state_slot = 0;
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@ -246,7 +245,7 @@ int emu_ReloadRom(void)
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if(currentConfig.EmuOpt & 1)
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emu_SaveLoadGame(1, 1);
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frame_count = 0;
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Pico.m.frame_count = 0;
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return 1;
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}
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@ -713,7 +712,7 @@ static void updateKeys(void)
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if(movie_data)
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{
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int offs = frame_count*3 + 0x40;
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int offs = Pico.m.frame_count*3 + 0x40;
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if (offs+3 > movie_size) {
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free(movie_data);
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movie_data = 0;
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@ -736,8 +735,6 @@ static void updateKeys(void)
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PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX
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if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X
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if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z
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if ((PicoPad[0] & 0x80) || (PicoPad[1] & 0x80))
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printf("%d: start\n", frame_count);
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}
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}
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else
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@ -745,7 +742,7 @@ static void updateKeys(void)
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PicoPad[0] = (unsigned short) allActions[0];
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PicoPad[1] = (unsigned short) allActions[1];
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}
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frame_count++;
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Pico.m.frame_count++;
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events = (allActions[0] | allActions[1]) >> 16;
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@ -995,21 +992,59 @@ void emu_Loop(void)
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updateKeys();
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PicoFrame();
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#if 0
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if (Pico.m.frame_count == 31563) {
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FILE *f;
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f = fopen("ram_p.bin", "wb");
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if (!f) { printf("!f\n"); exit(1); }
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fwrite(Pico.ram, 1, 0x10000, f);
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fclose(f);
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exit(0);
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}
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#endif
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#if 0
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// debug
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{
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static unsigned char oldscr[320*240*2];
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FILE *f; char name[128]; int i;
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for (i = 0; i < 320*240*2; i++)
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if(oldscr[i] != ((unsigned char *)gp2x_screen)[i]) break;
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if (i < 320*240*2)
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#define BYTE unsigned char
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#define WORD unsigned short
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struct
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{
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for (i = 0; i < 320*240*2; i++)
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oldscr[i] = ((unsigned char *)gp2x_screen)[i];
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sprintf(name, "%05i.raw", frame_count);
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BYTE IDLength; /* 00h Size of Image ID field */
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BYTE ColorMapType; /* 01h Color map type */
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BYTE ImageType; /* 02h Image type code */
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WORD CMapStart; /* 03h Color map origin */
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WORD CMapLength; /* 05h Color map length */
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BYTE CMapDepth; /* 07h Depth of color map entries */
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WORD XOffset; /* 08h X origin of image */
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WORD YOffset; /* 0Ah Y origin of image */
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WORD Width; /* 0Ch Width of image */
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WORD Height; /* 0Eh Height of image */
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BYTE PixelDepth; /* 10h Image pixel size */
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BYTE ImageDescriptor; /* 11h Image descriptor byte */
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} __attribute__((packed)) TGAHEAD;
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static unsigned short oldscr[320*240];
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FILE *f; char name[128]; int i;
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memset(&TGAHEAD, 0, sizeof(TGAHEAD));
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TGAHEAD.ImageType = 2;
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TGAHEAD.Width = 320;
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TGAHEAD.Height = 240;
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TGAHEAD.PixelDepth = 16;
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TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left
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#define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?
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for (i = 0; i < 320*240; i++)
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if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;
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if (i < 320*240)
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{
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for (i = 0; i < 320*240; i++)
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oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);
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sprintf(name, "%05i.tga", Pico.m.frame_count);
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f = fopen(name, "wb");
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if (!f) { printf("!f\n"); exit(1); }
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fwrite(gp2x_screen, 1, 320*240*2, f);
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fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);
|
||||
fwrite(oldscr, 1, 320*240*2, f);
|
||||
fclose(f);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -603,7 +603,7 @@ static void draw_amenu_options(int menu_sel)
|
|||
|
||||
static void amenu_loop_options(void)
|
||||
{
|
||||
int menu_sel = 0, menu_sel_max = 11;
|
||||
int menu_sel = 0, menu_sel_max = 10;
|
||||
unsigned long inp = 0;
|
||||
|
||||
for(;;)
|
||||
|
|
|
|||
|
|
@ -12,9 +12,7 @@
|
|||
// pico.c
|
||||
#define CAN_HANDLE_240_LINES 1
|
||||
|
||||
extern int frame_count;
|
||||
|
||||
#define dprintf(f,...) printf("%05i: " f "\n",frame_count,##__VA_ARGS__)
|
||||
#define dprintf(f,...) printf("%05i: " f "\n",Pico.m.frame_count,##__VA_ARGS__)
|
||||
//#define dprintf(x...)
|
||||
|
||||
#endif //PORT_CONFIG_H
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue