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NES - fix mapper 96 prg mapping. These games are working as well as can be tested without better peripheral support, so I'm considering this mapper complete.

This commit is contained in:
adelikat 2012-07-31 03:07:38 +00:00
parent 4930979940
commit a5262488c7
1 changed files with 19 additions and 1 deletions
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20
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/BANDAI_74_161_02_74.cs
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@ -138,13 +138,31 @@ namespace BizHawk.Emulation.Consoles.Nintendo
public override void WritePRG(int addr, byte value) public override void WritePRG(int addr, byte value)
{ {
prg_bank_mask_32k = (byte)(value & 0x03); prg_bank_32k = (byte)(value & 0x03);
chr_block = (value >> 2) & 0x01; chr_block = (value >> 2) & 0x01;
} }
public override byte ReadPRG(int addr) public override byte ReadPRG(int addr)
{ {
int bank_32k = prg_bank_32k & prg_bank_mask_32k; int bank_32k = prg_bank_32k & prg_bank_mask_32k;
int x = 0;
switch (bank_32k)
{
case 0:
x += 0;
break;
case 1:
x += 1;
break;
case 2:
x += 2;
break;
case 3:
x += 3;
break;
}
int y = 0;
return ROM[(bank_32k * 0x8000) + addr]; return ROM[(bank_32k * 0x8000) + addr];
} }