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1.20 release

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@57 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-02-25 23:04:33 +00:00
parent 860c6322c3
commit 68cba51e20
8 changed files with 93 additions and 53 deletions
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63
Pico/cd/Pico.c
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@ -83,6 +83,46 @@ static __inline void SekRunS68k(int cyc)
#endif
}
#define PS_STEP_M68K 8
#define PS_STEP_S68K 13
static __inline void SekRunPS(int cyc_m68k, int cyc_s68k)
{
int cyc_do_m68k, cyc_do_s68k, it=0;
int cyc_done_m68k=0, cyc_done_s68k=0;
SekCycleAim+=cyc_m68k;
SekCycleAimS68k+=cyc_s68k;
cyc_do_m68k=SekCycleAim-SekCycleCnt;
cyc_do_s68k=SekCycleAimS68k-SekCycleCntS68k;
while (cyc_done_m68k < cyc_do_m68k || cyc_done_s68k < cyc_do_s68k) {
it++;
if (cyc_done_m68k < cyc_do_m68k && it*PS_STEP_M68K > cyc_done_m68k) {
#if defined(EMU_C68K)
PicoCpu.cycles = PS_STEP_M68K;
CycloneRun(&PicoCpu);
cyc_done_m68k += PS_STEP_M68K - PicoCpu.cycles;
#elif defined(EMU_M68K)
m68k_set_context(&PicoM68kCPU);
cyc_done_m68k += m68k_execute(PS_STEP_M68K);
#endif
} //else dprintf("m68k skipping it #%i", it);
if (cyc_done_s68k < cyc_do_s68k && it*PS_STEP_S68K > cyc_done_s68k) {
#if defined(EMU_C68K)
PicoCpuS68k.cycles = PS_STEP_S68K;
CycloneRun(&PicoCpuS68k);
cyc_done_s68k += PS_STEP_S68K - PicoCpuS68k.cycles;
#elif defined(EMU_M68K)
m68k_set_context(&PicoS68kCPU);
cyc_done_s68k += m68k_execute(PS_STEP_S68K);
#endif
} //else dprintf("s68k skipping it #%i", it);
}
SekCycleCnt += cyc_done_m68k;
SekCycleCntS68k += cyc_done_s68k;
//dprintf("== end SekRunPS, it=%i ==", it);
}
static __inline void check_cd_dma(void)
{
int ddx;
@ -230,23 +270,12 @@ static int PicoFrameHintsMCD(void)
// Run scanline:
//dprintf("m68k starting exec @ %06x", SekPc);
if(Pico.m.dma_bytes) SekCycleCnt+=CheckDMA();
SekRun(cycles_68k);
if ((Pico_mcd->m.busreq&3) == 1) { // no busreq/no reset
#if 0
int i;
FILE *f = fopen("prg_ram.bin", "wb");
for (i = 0; i < 0x80000; i+=2)
{
int tmp = Pico_mcd->prg_ram[i];
Pico_mcd->prg_ram[i] = Pico_mcd->prg_ram[i+1];
Pico_mcd->prg_ram[i+1] = tmp;
}
fwrite(Pico_mcd->prg_ram, 1, 0x80000, f);
fclose(f);
exit(1);
#endif
//dprintf("s68k starting exec @ %06x", SekPcS68k);
SekRunS68k(cycles_s68k);
if((PicoOpt & 0x2000) && (Pico_mcd->m.busreq&3) == 1) {
SekRunPS(cycles_68k, cycles_s68k); // "perfect sync"
} else {
SekRun(cycles_68k);
if ((Pico_mcd->m.busreq&3) == 1) // no busreq/no reset
SekRunS68k(cycles_s68k);
}
if((PicoOpt&4) && Pico.m.z80Run) {