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32x: rework scheduling/timing

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- don't run in line quantity
- decouple from 68k
- some things to tune..
This commit is contained in:
notaz 2013-07-08 02:38:42 +03:00
parent ed4402a7df
commit a8fd6e3761
9 changed files with 325 additions and 130 deletions
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24
pico/pico_cmn.c
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@ -111,9 +111,6 @@ static int PicoFrameHints(void)
#ifdef PICO_CD
check_cd_dma();
#endif
#ifdef PICO_32X
p32x_timers_do(1);
#endif
// H-Interrupts:
if (--hint < 0) // y <= lines_vis: Comix Zone, Golden Axe
@ -146,6 +143,9 @@ static int PicoFrameHints(void)
PicoSyncZ80(SekCycleCnt);
if (ym2612.dacen && PsndDacLine <= y)
PsndDoDAC(y);
#ifdef PICO_32X
p32x_sync_sh2s(SekCycleCntT + SekCycleCnt);
#endif
PsndGetSamples(y);
}
@ -183,9 +183,6 @@ static int PicoFrameHints(void)
#ifdef PICO_CD
check_cd_dma();
#endif
#ifdef PICO_32X
p32x_timers_do(1);
#endif
// Last H-Int:
if (--hint < 0)
@ -199,10 +196,6 @@ static int PicoFrameHints(void)
pv->status|=0x08; // go into vblank
pv->pending_ints|=0x20;
#ifdef PICO_32X
p32x_start_blank();
#endif
// the following SekRun is there for several reasons:
// there must be a delay after vblank bit is set and irq is asserted (Mazin Saga)
// also delay between F bit (bit 7) is set in SR and IRQ happens (Ex-Mutants)
@ -219,6 +212,11 @@ static int PicoFrameHints(void)
z80_int();
}
#ifdef PICO_32X
p32x_sync_sh2s(SekCycleCntT + SekCycleCnt);
p32x_start_blank();
#endif
// get samples from sound chips
if (y == 224 && PsndOut)
{
@ -254,9 +252,6 @@ static int PicoFrameHints(void)
#ifdef PICO_CD
check_cd_dma();
#endif
#ifdef PICO_32X
p32x_timers_do(1);
#endif
// Run scanline:
if (Pico.m.dma_xfers) SekCyclesBurn(CheckDMA());
@ -275,6 +270,9 @@ static int PicoFrameHints(void)
if (PsndOut && ym2612.dacen && PsndDacLine <= lines-1)
PsndDoDAC(lines-1);
#ifdef PICO_32X
p32x_sync_sh2s(SekCycleCntT + SekCycleCnt);
#endif
timers_cycle();
return 0;