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new acc mode timing, VDP FIFO code

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@244 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-09-11 20:52:21 +00:00
parent 83c093a48a
commit 69996cb7c6
14 changed files with 373 additions and 132 deletions
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18
Pico/Sek.c
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@ -46,17 +46,15 @@ static int (*ResetCallback)()=DoReset;
static int SekIntAck(int level)
{
// try to emulate VDP's reaction to 68000 int ack
if (level == 4) Pico.video.pending_ints = 0;
else if(level == 6) Pico.video.pending_ints &= ~0x20;
if (level == 4) { Pico.video.pending_ints = 0; elprintf(EL_INTS, "hack: @ %06x [%i]", SekPc, SekCycleCnt); }
else if(level == 6) { Pico.video.pending_ints &= ~0x20; elprintf(EL_INTS, "vack: @ %06x [%i]", SekPc, SekCycleCnt); }
PicoCpu.irq = 0;
return CYCLONE_INT_ACK_AUTOVECTOR;
}
static void SekResetAck()
static void SekResetAck(void)
{
#if defined(__DEBUG_PRINT) || defined(WIN32)
dprintf("Reset encountered @ %06x", SekPc);
#endif
elprintf(EL_ANOMALY, "Reset encountered @ %06x", SekPc);
}
static int SekUnrecognizedOpcode()
@ -64,9 +62,7 @@ static int SekUnrecognizedOpcode()
unsigned int pc, op;
pc = SekPc;
op = PicoCpu.read16(pc);
#if defined(__DEBUG_PRINT) || defined(WIN32)
dprintf("Unrecognized Opcode %04x @ %06x", op, pc);
#endif
elprintf(EL_ANOMALY, "Unrecognized Opcode %04x @ %06x", op, pc);
// see if we are not executing trash
if (pc < 0x200 || (pc > Pico.romsize+4 && (pc&0xe00000)!=0xe00000)) {
PicoCpu.cycles = 0;
@ -88,8 +84,8 @@ static int SekUnrecognizedOpcode()
#ifdef EMU_M68K
static int SekIntAckM68K(int level)
{
if (level == 4) { Pico.video.pending_ints = 0; dprintf("hack: [%i|%i]", Pico.m.scanline, SekCyclesDone()); }
else if(level == 6) { Pico.video.pending_ints &= ~0x20; dprintf("vack: [%i|%i]", Pico.m.scanline, SekCyclesDone()); }
if (level == 4) { Pico.video.pending_ints = 0; elprintf(EL_INTS, "hack: @ %06x [%i]", SekPc, SekCycleCnt); }
else if(level == 6) { Pico.video.pending_ints &= ~0x20; elprintf(EL_INTS, "vack: @ %06x [%i]", SekPc, SekCycleCnt); }
CPU_INT_LEVEL = 0;
return M68K_INT_ACK_AUTOVECTOR;
}