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nes: pxrom, fxrom: implement peekppu; fixes nametable debugger view in some games

This commit is contained in:
goyuken 2012-11-03 01:26:13 +00:00
parent 499f049e42
commit d89e9e5da5
1 changed files with 17 additions and 0 deletions
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17
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/PxROM_FxROM.cs
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@ -118,6 +118,23 @@ namespace BizHawk.Emulation.Consoles.Nintendo
}
}
// same as readppu but without processing latches
public override byte PeekPPU(int addr)
{
int side = addr >> 12;
int tile = (addr >> 4) & 0xFF;
if (addr < 0x2000)
{
int reg = side * 2 + chr_latches[side];
int ofs = addr & ((1 << 12) - 1);
int bank_4k = chr_banks_4k[reg];
addr = (bank_4k << 12) | ofs;
return VROM[addr];
}
else
return base.ReadPPU(addr);
}
public override byte ReadPPU(int addr)
{
int side = addr>>12;