private void CmDissassembly_MouseClick(object sender, MouseEventArgs e)
{
int pc = LineToAddress[mouseOnLine];
executeing = true;
while (pc != GameState.CPU.PC && executeing)
{
cycles += GameState.CPU.Execute();
if (cycles >= PPU.CyclesPerLine)
{
PPU.RenderLine();
if (PPU.Scanline == 241 && PPU.VblankNMIEnabled)
{
GameState.CPU.NMI();
}
cycles = 0;
}
}
executeing = false;
Step();
}
private void BtnReset_Click(object sender, EventArgs e)
{
GameState.CPU.Reset();
PPU.Reset();
Step();
}
private void RunOneLine()
{
while (cycles < PPU.CyclesPerLine)
{
cycles += GameState.CPU.Execute();
}
if (PPU.Scanline == 241 && PPU.VblankNMIEnabled)
{
GameState.CPU.NMI();
}
cycles = 0;
PPU.RenderLine();
}
private void BtnStep_Click(object sender, EventArgs e)
{
cycles += GameState.CPU.Execute();
if (cycles >= PPU.CyclesPerLine)
{
PPU.RenderLine();
if (PPU.Scanline == 241 && PPU.VblankNMIEnabled)
{
GameState.CPU.NMI();
}
cycles = 0;
}
Step();
}
public void CPUWrite(byte d, int address)
{
if (address >= 0x8000)
{
CPUWriteExt(d, address);
}
else if (address >= 0x6000)
{
address &= 0x3FFF;
PRGRam[address] = d;
}
else if (address < 0x800)
{
CPURam[address & 0x7FF] = d;
}
else if (address >= 0x2000 && address <= 0x2007 || address == 0x4014)
{
PPU.Write(address, d);
}
}
public byte CPURead(int address)
{
if (address >= 0x8000)
{
return(CPUReadExt(address));
}
else if (address >= 0x6000)
{
address &= 0x1FFF;
return(PRGRam[address]);
}
else if (address < 0x800)
{
return(CPURam[address & 0x7FF]);
}
else if (address >= 0x2000 && address <= 0x2007)
{
return(PPU.Read(address));
}
return(0xFF);
}