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Update PPU.regs.cs

This commit is contained in:
alyosha-tas 2017-03-07 22:57:09 -05:00 committed by GitHub
parent df7a93e83a
commit 7127c130bc
1 changed files with 4 additions and 4 deletions
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8
BizHawk.Emulation.Cores/Consoles/Nintendo/NES/PPU.regs.cs
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@ -443,15 +443,15 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
{ {
if (ppur.status.sl < 241) if (ppur.status.sl < 241)
{ {
if (ppur.status.cycle < 64) if (ppur.status.cycle <= 64)
{ {
ret = 0xFF; // during this time all reads return FF ret = 0xFF; // during this time all reads return FF
} }
else if (ppur.status.cycle < 256) else if (ppur.status.cycle <= 256)
{ {
ret = read_value; ret = read_value;
} }
else if (ppur.status.cycle < 320) else if (ppur.status.cycle <= 320)
{ {
ret = read_value; ret = read_value;
} }
@ -815,4 +815,4 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
//Palette Gaps and Mirrors //Palette Gaps and Mirrors
// 3F04h,3F08h,3F0Ch - Three general purpose 6bit data registers. // 3F04h,3F08h,3F0Ch - Three general purpose 6bit data registers.
// 3F10h,3F14h,3F18h,3F1Ch - Mirrors of 3F00h,3F04h,3F08h,3F0Ch. // 3F10h,3F14h,3F18h,3F1Ch - Mirrors of 3F00h,3F04h,3F08h,3F0Ch.
// 3F20h-3FFFh - Mirrors of 3F00h-3F1Fh. // 3F20h-3FFFh - Mirrors of 3F00h-3F1Fh.