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region detection, cd states wip, fixes, stuff

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@25 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-01-28 22:51:16 +00:00
parent cb0316e4c5
commit 51a902ae25
26 changed files with 520 additions and 291 deletions
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10
Pico/cd/Memory.c
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@ -31,8 +31,6 @@ typedef unsigned int u32;
// extern m68ki_cpu_core m68ki_cpu;
extern int counter75hz;
static u32 m68k_reg_read16(u32 a)
{
@ -91,12 +89,12 @@ static void m68k_reg_write8(u32 a, u32 d)
return;
case 1:
d &= 3;
if (!(d&1)) PicoMCD |= 2; // reset pending, needed to be sure we fetch the right vectors on reset
if (!(d&1)) Pico_mcd->m.state_flags |= 1; // reset pending, needed to be sure we fetch the right vectors on reset
if ( (Pico_mcd->m.busreq&1) != (d&1)) dprintf("m68k: s68k reset %i", !(d&1));
if ( (Pico_mcd->m.busreq&2) != (d&2)) dprintf("m68k: s68k brq %i", (d&2)>>1);
if ((PicoMCD&2) && (d&3)==1) {
if ((Pico_mcd->m.state_flags&1) && (d&3)==1) {
SekResetS68k(); // S68k comes out of RESET or BRQ state
PicoMCD&=~2;
Pico_mcd->m.state_flags&=~1;
dprintf("m68k: resetting s68k, cycles=%i", SekCyclesLeft);
}
Pico_mcd->m.busreq = d;
@ -225,7 +223,6 @@ static void s68k_reg_write8(u32 a, u32 d)
dprintf("s68k irq mask: %02x", d);
if ((d&(1<<4)) && (Pico_mcd->s68k_regs[0x37]&4) && !(Pico_mcd->s68k_regs[0x33]&(1<<4))) {
CDD_Export_Status();
// counter75hz = 0; // ???
}
break;
case 0x34: // fader
@ -238,7 +235,6 @@ static void s68k_reg_write8(u32 a, u32 d)
Pico_mcd->s68k_regs[0x37] = d&7;
if ((d&4) && !(d_old&4)) {
CDD_Export_Status();
// counter75hz = 0; // ???
}
return;
}