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idle loop detection (Cyclone only, with debug stuff)

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@502 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-06-29 20:07:34 +00:00
parent d95259bdaa
commit 053fd9b42f
17 changed files with 372 additions and 37 deletions
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33
Pico/Pico.c
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@ -58,6 +58,8 @@ void PicoPower(void)
{
unsigned char sram_reg=Pico.m.sram_reg; // must be preserved
Pico.m.frame_count = 0;
// clear all memory of the emulated machine
memset(&Pico.ram,0,(unsigned int)&Pico.rom-(unsigned int)&Pico.ram);
@ -172,6 +174,12 @@ int PicoReset(void)
PicoResetMCD();
return 0;
}
else {
// reinit, so that checksum checks pass
SekFinishIdleDet();
if (!(PicoOpt & POPT_DIS_IDLE_DET))
SekInitIdleDet();
}
// reset sram state; enable sram access by default if it doesn't overlap with ROM
Pico.m.sram_reg=sram_reg&0x14;
@ -188,17 +196,17 @@ int PicoReset(void)
// same for Outrunners (92-121, when active is set to 24)
// 96 is VR hack
static const int dma_timings[] = {
96, 167, 166, 83, // vblank: 32cell: dma2vram dma2[vs|c]ram vram_fill vram_copy
102, 205, 204, 102, // vblank: 40cell:
16, 16, 15, 8, // active: 32cell:
24, 18, 17, 9 // ...
96, 167, 166, 83, // vblank: 32cell: dma2vram dma2[vs|c]ram vram_fill vram_copy
102, 205, 204, 102, // vblank: 40cell:
16, 16, 15, 8, // active: 32cell:
24, 18, 17, 9 // ...
};
static const int dma_bsycles[] = {
(488<<8)/96, (488<<8)/167, (488<<8)/166, (488<<8)/83,
(488<<8)/102, (488<<8)/205, (488<<8)/204, (488<<8)/102,
(488<<8)/16, (488<<8)/16, (488<<8)/15, (488<<8)/8,
(488<<8)/24, (488<<8)/18, (488<<8)/17, (488<<8)/9
(488<<8)/96, (488<<8)/167, (488<<8)/166, (488<<8)/83,
(488<<8)/102, (488<<8)/205, (488<<8)/204, (488<<8)/102,
(488<<8)/16, (488<<8)/16, (488<<8)/15, (488<<8)/8,
(488<<8)/24, (488<<8)/18, (488<<8)/17, (488<<8)/9
};
PICO_INTERNAL int CheckDMA(void)
@ -232,7 +240,7 @@ static __inline void SekRunM68k(int cyc)
{
int cyc_do;
SekCycleAim+=cyc;
if((cyc_do=SekCycleAim-SekCycleCnt) <= 0) return;
if ((cyc_do=SekCycleAim-SekCycleCnt) <= 0) return;
#if defined(EMU_CORE_DEBUG)
// this means we do run-compare
SekCycleCnt+=CM_compareRun(cyc_do, 0);
@ -498,10 +506,17 @@ static int PicoFrameSimple(void)
return 0;
}
int idle_hit_counter = 0;
int PicoFrame(void)
{
int acc;
if ((Pico.m.frame_count&0x3f) == 0) {
elprintf(EL_STATUS, "ihits: %i", idle_hit_counter);
idle_hit_counter = 0;
}
Pico.m.frame_count++;
if (PicoAHW & PAHW_MCD) {