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Fix TF1201

This commit is contained in:
alyosha-tas 2016-09-19 09:15:15 -04:00 committed by GitHub
parent 4e673ecd63
commit c6bcb82f7b
1 changed files with 153 additions and 126 deletions
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55
BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/UNIF/UNIF_UNL-TF1201.cs
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@ -10,6 +10,10 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
private byte swap;
private ByteBuffer chr = new ByteBuffer(8);
private bool IRQa;
private int IRQCount;
private int IRQpre = 341;
private int prg_mask_8k;
public override bool Configure(NES.EDetectionOrigin origin)
@ -57,17 +61,44 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
case 0x9000:
SetMirrorType(value.Bit(0) ? EMirrorType.Horizontal : EMirrorType.Vertical);
break;
case 0x9001: swap = (byte)(value & 3);
case 0x9001:
swap = (byte)(value & 3);
break;
// TODO: IRQ
case 0xF000: break;
case 0xF002: break;
case 0xF000: IRQCount = (IRQCount & 0xF0) | (value & 0x0F); break;
case 0xF002: IRQCount = (IRQCount & 0x0F) | (value << 4 & 0xF0); break;
case 0xF001:
case 0xF003: break;
case 0xF003:
IRQa = value.Bit(1);
IRQSignal = false;
if (NES.ppu.ppuphase !=PPU.PPUPHASE.VBL)
IRQCount -= 8;
break;
}
}
public override void ClockPPU()
{
if ((NES.ppu.ppuphase != PPU.PPUPHASE.VBL))// && IRQa)
{
IRQpre--;
if (IRQpre==0)
{
IRQCount++;
IRQpre = 341;
if (IRQCount == 237)
{
IRQSignal = IRQa;
}
if (IRQCount == 256)
IRQCount = 0;
}
}
}
public override byte ReadPRG(int addr)
{
int bank;
@ -83,9 +114,11 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
bank = prg0;
}
}
else if (addr < 0x4000)
{
bank = prg1;
}
else if (addr < 0x6000)
{
if ((swap & 3) > 0)
{
@ -93,15 +126,9 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
}
else
{
bank = prg_mask_8k;
bank = prg_mask_8k-1;
}
}
else if (addr < 0x6000)
{
bank = prg0;
}
else
{
bank = prg_mask_8k;