public override void iot(UInt32 inst)
{
UInt32 y;
y = inst & 0x1ff;
if (y == 0x26) // swc
{
wordCounter = cpu.Io & 0xffff;
deviceRegister = (inst >> 9) & 0x7;
connectedDevice = devices[deviceRegister & 3];
if (cpu.Debug)
{
cpu.DebugLog += "swc Set word control: " + Form1.convert((UInt32)wordCounter, 8);
}
}
if (y == 0xe6) // sia
{
initialRegister = cpu.Io & 0xffff;
if (cpu.Debug)
{
cpu.DebugLog += "sia Set initial address: " + Form1.convert((UInt32)initialRegister, 8);
}
}
if (y == 0x66) // sdf
{
deviceRegister = 0;
if (cpu.Debug)
{
cpu.DebugLog += "sdf Stop data flow";
}
}
}
public HighSpeedControl(Cpu c) : base(c)
{
irq = 1;
wordCounter = 0;
devices = new IoDevice[3];
for (var i = 0; i < 3; i++)
{
devices[i] = null;
}
connectedDevice = null;
}