RaySollium99/picodrive
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1.30 release

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@78 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-03-25 00:08:03 +00:00
parent 7a1f6e45c9
commit 89fa852dce
8 changed files with 63 additions and 16 deletions
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45
Pico/cd/Pico.c
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@ -12,6 +12,28 @@
extern unsigned char formatted_bram[4*0x10];
extern unsigned int s68k_poll_adclk;
#define dump_ram(ram,fname) \
{ \
int i, d; \
FILE *f; \
\
for (i = 0; i < sizeof(ram); i+=2) { \
d = (ram[i]<<8) | ram[i+1]; \
*(unsigned short *)(ram+i) = d; \
} \
f = fopen(fname, "wb"); \
if (f) { \
fwrite(ram, 1, sizeof(ram), f); \
fclose(f); \
} \
for (i = 0; i < sizeof(ram); i+=2) { \
d = (ram[i]<<8) | ram[i+1]; \
*(unsigned short *)(ram+i) = d; \
} \
}
int PicoInitMCD(void)
@ -26,6 +48,9 @@ int PicoInitMCD(void)
void PicoExitMCD(void)
{
End_CD_Driver();
//dump_ram(Pico_mcd->prg_ram, "prg.bin");
//dump_ram(Pico.ram, "ram.bin");
}
int PicoResetMCD(int hard)
@ -185,6 +210,18 @@ static __inline void update_chips(void)
// update gfx chip
if (Pico_mcd->rot_comp.Reg_58 & 0x8000)
gfx_cd_update();
// delayed setting of DMNA bit (needed for Silpheed)
if (Pico_mcd->m.state_flags & 2) {
Pico_mcd->m.state_flags &= ~2;
Pico_mcd->s68k_regs[3] |= 2;
Pico_mcd->s68k_regs[3] &= ~1;
#ifdef USE_POLL_DETECT
if ((s68k_poll_adclk&0xfe) == 2) {
SekSetStopS68k(0); s68k_poll_adclk = 0;
}
#endif
}
}
@ -284,8 +321,8 @@ static int PicoFrameHintsMCD(void)
// Run scanline:
//dprintf("m68k starting exec @ %06x", SekPc);
if(Pico.m.dma_bytes) SekCycleCnt+=CheckDMA();
if((PicoOpt & 0x2000) && (Pico_mcd->m.busreq&3) == 1) {
if (Pico.m.dma_bytes) SekCycleCnt+=CheckDMA();
if ((PicoOpt & 0x2000) && (Pico_mcd->m.busreq&3) == 1) {
SekRunPS(cycles_68k, cycles_s68k); // "better/perfect sync"
} else {
SekRun(cycles_68k);
@ -293,7 +330,7 @@ static int PicoFrameHintsMCD(void)
SekRunS68k(cycles_s68k);
}
if((PicoOpt&4) && Pico.m.z80Run) {
if ((PicoOpt&4) && Pico.m.z80Run) {
Pico.m.z80Run|=2;
z80CycleAim+=cycles_z80;
total_z80+=z80_run(z80CycleAim-total_z80);
@ -303,7 +340,7 @@ static int PicoFrameHintsMCD(void)
}
// draw a frame just after vblank in alternative render mode
if(!PicoSkipFrame && (PicoOpt&0x10))
if (!PicoSkipFrame && (PicoOpt&0x10))
PicoFrameFull();
return 0;