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Fix Mapper 115 

fixes Thunderbolt 2
This commit is contained in:
alyosha-tas 2016-10-17 12:04:46 -04:00 committed by GitHub
parent 8debec4039
commit 6b46170f68
1 changed files with 15 additions and 3 deletions
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18
BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/MMC3_family/Mapper115.cs
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@ -43,7 +43,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
{
case 0:
prg_mode_mapper = value.Bit(7);
prg_page = (value & 0xF) * 2;
prg_page = (value & 0xF) >> 1;
break;
case 1:
chr_block_or = (value & 0x1)<<8;
@ -55,11 +55,23 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
{
int bank_8k = mmc3.Get_PRGBank_8K(addr);
if (prg_mode_mapper == false) return bank_8k;
else if (addr < 0x2000)
{
return prg_page*4;
}
else if (addr < 0x4000)
{
return (addr >> 13) + prg_page;
return prg_page*4 + 1;
}
else return bank_8k;
else if (addr < 0x6000)
{
return prg_page*4 + 2;
}
else
{
return prg_page*4 + 3;
}
}
protected override int Get_CHRBank_1K(int addr)