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hint-less mode updated for SVP, state load callback, etc

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@384 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-03-13 22:30:34 +00:00
parent 71bb1b7bd0
commit fad248933b
11 changed files with 86 additions and 19 deletions
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22
Pico/Pico.c
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@ -244,12 +244,12 @@ static __inline void SekStep(void)
static int CheckIdle(void)
{
int i, state[0x22];
int i, state[0x24];
// See if the state is the same after 2 steps:
SekState(state); SekStep(); SekStep(); SekState(state+0x11);
for (i = 0x10; i >= 0; i--)
if (state[i] != state[i+0x11]) return 0;
SekState(state); SekStep(); SekStep(); SekState(state+0x12);
for (i = 0x11; i >= 0; i--)
if (state[i] != state[i+0x12]) return 0;
return 1;
}
@ -344,6 +344,10 @@ static int PicoFrameSimple(void)
lines_step = 14;
}
// a hack for VR, to get it running in fast mode
if (PicoRead16Hook == PicoSVPRead16)
Pico.ram[0xd864^1] = 0x1a;
// we don't emulate DMA timing in this mode
if (Pico.m.dma_xfers) {
Pico.m.dma_xfers=0;
@ -391,10 +395,19 @@ static int PicoFrameSimple(void)
if (PicoLineHook) PicoLineHook(sects*lines_step);
}
// another hack for VR (it needs hints to work)
if (PicoRead16Hook == PicoSVPRead16) {
Pico.ram[0xd864^1] = 1;
pv->pending_ints|=0x10;
if (pv->reg[0]&0x10) SekInterrupt(4);
SekRunM68k(160);
}
// render screen
if (!PicoSkipFrame)
{
if (!(PicoOpt&0x10))
{
// Draw the screen
#if CAN_HANDLE_240_LINES
if (pv->reg[1]&8) {
@ -405,6 +418,7 @@ static int PicoFrameSimple(void)
#else
for (y=0;y<224;y++) PicoLine(y);
#endif
}
else PicoFrameFull();
#ifdef DRAW_FINISH_FUNC
DRAW_FINISH_FUNC();