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ym2612 full saves wip

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@479 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-06-01 22:35:08 +00:00
parent e5fa981777
commit d2721b08bb
6 changed files with 199 additions and 55 deletions
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30
Pico/Memory.c
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@ -796,7 +796,7 @@ int ym2612_write_local(u32 a, u32 d, int is_from_z80)
{
//elprintf(EL_STATUS, "timer a set %i", TAnew);
ym2612.OPN.ST.TA = TAnew;
//ym2612.OPN.ST.TAC = (1024-TAnew)*18;
ym2612.OPN.ST.TAC = (1024-TAnew)*18;
//ym2612.OPN.ST.TAT = 0;
//
timer_a_step = timer_a_offset = 16466 * (1024 - TAnew);
@ -812,8 +812,7 @@ int ym2612_write_local(u32 a, u32 d, int is_from_z80)
if (ym2612.OPN.ST.TB != d) {
//elprintf(EL_STATUS, "timer b set %i", d);
ym2612.OPN.ST.TB = d;
//ym2612.OPN.ST.TBC = (256-d)<<4;
//ym2612.OPN.ST.TBC *= 18;
ym2612.OPN.ST.TBC = (256-d) * 288;
//ym2612.OPN.ST.TBT = 0;
timer_b_step = timer_b_offset = 262800 * (256 - d); // 262881
if (ym2612.OPN.ST.mode & 2) {
@ -912,21 +911,38 @@ u32 ym2612_read_local_68k(void)
return ym2612.OPN.ST.status;
}
// TODO: new ym2612 savestates, also save timers
void ym2612_pack_state(void)
{
// TODO timers
#ifdef __GP2X__
if (PicoOpt & POPT_EXT_FM)
/*YM2612PicoStateSave2_940(0, 0)*/;
else
#endif
YM2612PicoStateSave2(0, 0);
}
void ym2612_unpack_state(void)
{
int i;
int i, ret, tat, tbt;
YM2612PicoStateLoad();
// feed all the registers and update internal state
for (i = 0x20; i < 0xC0; i++) {
for (i = 0x20; i < 0xB8; i++) {
ym2612_write_local(0, i, 0);
ym2612_write_local(1, ym2612.REGS[i], 0);
}
for (i = 0x30; i < 0xC0; i++) {
for (i = 0x30; i < 0xB8; i++) {
ym2612_write_local(2, i, 0);
ym2612_write_local(3, ym2612.REGS[i|0x100], 0);
}
#ifdef __GP2X__
if (PicoOpt & POPT_EXT_FM)
/*ret = YM2612PicoStateLoad2_940(&tat, &tbt)*/;
else
#endif
ret = YM2612PicoStateLoad2(&tat, &tbt);
}
// -----------------------------------------------------------------