public int OnIORead(int location)
{
int function = 0;
IOHardware hardware = DecodeIOPort(location, ref function);
switch (hardware)
{
case IOHardware.PPI8255:
{
return(m_ppi.IORead(function));
}
case IOHardware.CRTC:
{
return(m_crtc.OnIORead(function));
}
}
return(0xff);
}
public void OnIOWrite(int location, int value)
{
int function = 0;
IOHardware hardware = DecodeIOPort(location, ref function);
switch (hardware)
{
case IOHardware.GateArray:
{
m_gate_array.OnIOWrite(value);
}
break;
case IOHardware.CRTC:
{
m_crtc.OnIOWrite(function, value);
}
break;
case IOHardware.ROMSelect:
{
m_memory.SelectUpperROM(value);
}
break;
case IOHardware.PPI8255:
{
m_ppi.IOWrite(function, value);
}
break;
default:
{
}
break;
}
}
