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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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279
BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/UNIF/UNIF_UNL-TF1201.cs
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@ -1,126 +1,153 @@
using BizHawk.Common;
using BizHawk.Common.NumberExtensions;
namespace BizHawk.Emulation.Cores.Nintendo.NES
{
public class UNIF_UNL_TF1201 : NES.NESBoardBase
{
private byte prg0;
private byte prg1;
private byte swap;
private ByteBuffer chr = new ByteBuffer(8);
private int prg_mask_8k;
public override bool Configure(NES.EDetectionOrigin origin)
{
switch (Cart.board_type)
{
case "UNIF_UNL-TF1201":
break;
default:
return false;
}
prg_mask_8k = Cart.prg_size / 8 - 1;
return true;
}
public override void SyncState(Serializer ser)
{
base.SyncState(ser);
ser.Sync("prg0", ref prg0);
ser.Sync("prg1", ref prg1);
ser.Sync("swap", ref swap);
ser.Sync("chr", ref chr);
}
public override void WritePRG(int addr, byte value)
{
addr += 0x8000;
addr = (addr & 0xF003) | ((addr & 0xC) >> 2);
if ((addr >= 0xB000) && (addr <= 0xE003))
{
int ind = (((addr >> 11) - 6) | (addr & 1)) & 7;
int sar = ((addr & 2) << 1);
chr[ind] = (byte)((chr[ind] & (0xF0 >> sar)) | ((value & 0x0F) << sar));
}
else switch (addr & 0xF003)
{
case 0x8000:
prg0 = value;
break;
case 0xA000:
prg1 = value;
break;
case 0x9000:
SetMirrorType(value.Bit(0) ? EMirrorType.Horizontal : EMirrorType.Vertical);
break;
case 0x9001: swap = (byte)(value & 3);
break;
// TODO: IRQ
case 0xF000: break;
case 0xF002: break;
case 0xF001:
case 0xF003: break;
}
}
public override byte ReadPRG(int addr)
{
int bank;
if (addr < 0x2000)
{
if ((swap & 3) > 0)
{
bank = prg_mask_8k - 1;
}
else
{
bank = prg0;
}
}
else if (addr < 0x4000)
{
if ((swap & 3) > 0)
{
bank = prg0;
}
else
{
bank = prg_mask_8k;
}
}
else if (addr < 0x6000)
{
bank = prg0;
}
else
{
bank = prg_mask_8k;
}
return ROM[(bank << 13) + (addr & 0x1FFF)];
}
public override byte ReadPPU(int addr)
{
if (addr < 0x2000)
{
int x = (addr >> 10) & 7;
return VROM[(chr[x] << 10) + (addr & 0x3FF)];
}
return base.ReadPPU(addr);
}
}
}
using BizHawk.Common;
using BizHawk.Common.NumberExtensions;
namespace BizHawk.Emulation.Cores.Nintendo.NES
{
public class UNIF_UNL_TF1201 : NES.NESBoardBase
{
private byte prg0;
private byte prg1;
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)
{
switch (Cart.board_type)
{
case "UNIF_UNL-TF1201":
break;
default:
return false;
}
prg_mask_8k = Cart.prg_size / 8 - 1;
return true;
}
public override void SyncState(Serializer ser)
{
base.SyncState(ser);
ser.Sync("prg0", ref prg0);
ser.Sync("prg1", ref prg1);
ser.Sync("swap", ref swap);
ser.Sync("chr", ref chr);
}
public override void WritePRG(int addr, byte value)
{
addr += 0x8000;
addr = (addr & 0xF003) | ((addr & 0xC) >> 2);
if ((addr >= 0xB000) && (addr <= 0xE003))
{
int ind = (((addr >> 11) - 6) | (addr & 1)) & 7;
int sar = ((addr & 2) << 1);
chr[ind] = (byte)((chr[ind] & (0xF0 >> sar)) | ((value & 0x0F) << sar));
}
else switch (addr & 0xF003)
{
case 0x8000:
prg0 = value;
break;
case 0xA000:
prg1 = value;
break;
case 0x9000:
SetMirrorType(value.Bit(0) ? EMirrorType.Horizontal : EMirrorType.Vertical);
break;
case 0x9001:
swap = (byte)(value & 3);
break;
case 0xF000: IRQCount = (IRQCount & 0xF0) | (value & 0x0F); break;
case 0xF002: IRQCount = (IRQCount & 0x0F) | (value << 4 & 0xF0); break;
case 0xF001:
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;
if (addr < 0x2000)
{
if ((swap & 3) > 0)
{
bank = prg_mask_8k - 1;
}
else
{
bank = prg0;
}
}
else if (addr < 0x4000)
{
bank = prg1;
}
else if (addr < 0x6000)
{
if ((swap & 3) > 0)
{
bank = prg0;
}
else
{
bank = prg_mask_8k-1;
}
}
else
{
bank = prg_mask_8k;
}
return ROM[(bank << 13) + (addr & 0x1FFF)];
}
public override byte ReadPPU(int addr)
{
if (addr < 0x2000)
{
int x = (addr >> 10) & 7;
return VROM[(chr[x] << 10) + (addr & 0x3FF)];
}
return base.ReadPPU(addr);
}
}
}