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NES Fix more then 8 sprites option

This commit is contained in:
alyosha-tas 2017-04-07 20:14:34 -04:00 committed by GitHub
parent 9e94bec081
commit 9f7a926437
1 changed files with 3 additions and 30 deletions
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33
BizHawk.Emulation.Cores/Consoles/Nintendo/NES/PPU.run.cs
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@ -1,7 +1,5 @@
//http://nesdev.parodius.com/bbs/viewtopic.php?p=4571&sid=db4c7e35316cc5d734606dd02f11dccb
//todo - read http://wiki.nesdev.com/w/index.php/PPU_sprite_priority
//TODO - correctly emulate PPU OFF state
using BizHawk.Common;
@ -499,7 +497,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
if (nes.Settings.AllowMoreThanEightSprites)
{
while (oam_index_aux < 64)
while (oam_index_aux < 64 && soam_index_aux<64)
{
//look for sprites
soam[soam_index_aux * 4] = OAM[oam_index_aux * 4];
@ -679,14 +677,12 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
}
} // sprite pattern fetch loop
//now do the same for extra sprites, but without any cycles run
if (soam_index_aux>8)
{
for (int s = 8; s < soam_index_aux; s++)
{
bool junksprite = (!PPUON);
t_oam[s].oam_y = soam[s * 4];
t_oam[s].oam_ind = soam[s * 4 + 1];
t_oam[s].oam_attr = soam[s * 4 + 2];
@ -789,31 +785,8 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
//register before around a full frame, but no games
//should write to those regs during that time, it needs
//to wait for vblank
/*
if (ppudead < 2)
{
ppur.status.sl = 241;
runppu(1);
Reg2002_vblank_active = true;
runppu(5);
runppu(postNMIlines * kLineTime - 6);
ppur.status.sl = 0;
clear_2002();
}
if (ppudead==2)
{
*/
runppu(241 * kLineTime+3);// -8*3);
/*
} else
{
runppu(241 * kLineTime);
runppu(preNMIlines * kLineTime);
idleSynch ^= true;
}
*/
runppu(241 * kLineTime+3);// -8*3);
ppudead--;
}
}