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fix overclock buffer overflow

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This commit is contained in:
retro-wertz
2017-03-09 18:01:33 +08:00
parent 1ec32bd8bc
commit e9682625dc
1 changed files with 13 additions and 6 deletions
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19
src/ppu.c
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@@ -662,8 +662,15 @@ static void Fixit1(void) {
void MMC5_hb(int); //Ugh ugh ugh. void MMC5_hb(int); //Ugh ugh ugh.
static void DoLine(void) { static void DoLine(void) {
if (scanline >= 240 && scanline != totalscanlines) {
X6502_Run(256 + 69);
scanline++;
X6502_Run(16);
return;
}
int x; int x;
uint8 *target = XBuf + (scanline << 8); uint8 *target = XBuf + ((scanline < 240 ? scanline : 240) << 8);
if (MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline); if (MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
@@ -1231,11 +1238,11 @@ int FCEUPPU_Loop(int skip) {
overclocked = 1; overclocked = 1;
} }
} }
/* For Debugging /* For Debugging */
* FCEU_printf("Overclock State:%d DMC+7bit:%d Skip_7bit_OC:%d\n", /* FCEU_printf("Overclock State:%d DMC+7bit:%d Skip_7bit_OC:%d\n",
* overclock_state,DMC_7bit,skip_7bit_overclocking); overclock_state,DMC_7bit,skip_7bit_overclocking);
* FCEU_printf("SL:%d N_SL:%d, T_SL:%d Overclocked(for FCEU_SoundCPUHook):%d\n\n", FCEU_printf("SL:%d N_SL:%d, T_SL:%d Overclocked(for FCEU_SoundCPUHook):%d\n\n",
* scanline,normal_scanlines,totalscanlines,overclocked); scanline,normal_scanlines,totalscanlines,overclocked);
*/ */
DMC_7bit = 0; DMC_7bit = 0;
if (MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline); if (MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);