public void GetPIOReference(ref PIOReferenceVariable pio, IntExpression port)
{
//ugh.. fix this type system disaster
var f = FuncBuilder.Instance;
using (f.OpenScope("GetPIORef")) {
var temp = f.Declare.Int("temp");
InvokeResult(19, temp, port);
Assignment.AssignAny(pio, temp); //escape from the type system
}
}
public FastOutputPort(PIOReferenceVariable pio, IntVariable bitmask)
{
this.pio = pio;
this.bitmask = bitmask;
}
public static void GetPIOAndBitmask(this MethodDispatchTablePointer md, IntExpression pin, ref PIOReferenceVariable pio, ref IntVariable bitmask)
{
md.GetPIOReference(ref pio, pin.ShiftRight(5)); // pin/32
bitmask.Value = ((IntExpression)1).ShiftLeft(pin & 0x1f); // 1<<(pin%32)
}
