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bugfixes, state load for new mode

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@468 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-05-27 21:38:46 +00:00
parent 538a6098d4
commit 453d2a6eda
9 changed files with 32 additions and 44 deletions
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20
Pico/Memory.c
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@ -883,14 +883,13 @@ int ym2612_write_local(u32 a, u32 d, int is_from_z80)
return YM2612Write_(a, d);
}
// TODO: savestates
#define ym2612_read_local() \
if (xcycles >= timer_a_next_oflow) \
ym2612.OPN.ST.status |= (ym2612.OPN.ST.mode >> 2) & 1; \
if (xcycles >= timer_b_next_oflow) \
ym2612.OPN.ST.status |= (ym2612.OPN.ST.mode >> 2) & 2
u32 ym2612_read_local_z80(void)
{
int xcycles = z80_cyclesDone() << 8;
@ -913,6 +912,23 @@ u32 ym2612_read_local_68k(void)
return ym2612.OPN.ST.status;
}
// TODO: new ym2612 savestates
void ym2612_unpack_state(void)
{
int i;
YM2612PicoStateLoad();
// feed all the registers and update internal state
for (i = 0x20; i < 0xC0; i++) {
ym2612_write_local(0, i, 0);
ym2612_write_local(1, ym2612.REGS[i], 0);
}
for (i = 0x30; i < 0xC0; i++) {
ym2612_write_local(2, i, 0);
ym2612_write_local(3, ym2612.REGS[i|0x100], 0);
}
}
// -----------------------------------------------------------------
// z80 memhandlers