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NES - mapper 231 - optimize the ReadPRG() method

This commit is contained in:
andres.delikat 2012-08-02 21:05:15 +00:00
parent c176a1061a
commit 4754889131
1 changed files with 2 additions and 2 deletions
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4
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/Mapper231.cs
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@ -86,12 +86,12 @@ namespace BizHawk.Emulation.Consoles.Nintendo
if (low)
{
int bank = prg_reg & 0x1E;
return ROM[(bank * 0x4000) + addr];
return ROM[(bank << 14) + addr];
}
else
{
int bank = prg_reg;
return ROM[(bank * 0x4000) + addr - 0x4000];
return ROM[(bank << 14) + addr - 0x4000];
}
}