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 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)
}
public FastOutputPort(PIOReferenceVariable pio, IntVariable bitmask)
{
this.pio=pio;
this.bitmask=bitmask;
}