private static string DisassembleOrbitSpecialFunction2(MicroInstruction instruction)
{
OrbitF2 of2 = (OrbitF2)instruction.F2;
switch (of2)
{
case OrbitF2.OrbitDBCWidthSet:
return("OrbitDBCWidthSet<- ");
case OrbitF2.OrbitXY:
return("OrbitXY<- ");
case OrbitF2.OrbitHeight:
return("OrbitHeight<- ");
case OrbitF2.OrbitFontData:
return("OrbitFontData<- ");
case OrbitF2.OrbitInk:
return("OrbitInk<- ");
case OrbitF2.OrbitControl:
return("OrbitControl<- ");
case OrbitF2.OrbitROSCommand:
return("OrbitROSCommand<- ");
default:
return(String.Format("Orbit F2 {0}", Conversion.ToOctal((int)of2)));
}
}
protected override void ExecuteSpecialFunction2(MicroInstruction instruction)
{
OrbitF2 of2 = (OrbitF2)instruction.F2;
switch (of2)
{
case OrbitF2.OrbitDBCWidthSet:
_cpu._system.OrbitController.SetDBCWidth(_busData);
break;
case OrbitF2.OrbitXY:
_cpu._system.OrbitController.SetXY(_busData);
break;
case OrbitF2.OrbitHeight:
_cpu._system.OrbitController.SetHeight(_busData);
// branch:
// "OrbitHeight sets NEXT[7] if the refresh timer has expired, i.e.
// if the image buffer needs refreshing."
//
if (_cpu._system.OrbitController.RefreshTimerExpired)
{
_nextModifier |= 0x4;
}
break;
case OrbitF2.OrbitFontData:
_cpu._system.OrbitController.WriteFontData(_busData);
break;
case OrbitF2.OrbitInk:
_cpu._system.OrbitController.WriteInkData(_busData);
break;
case OrbitF2.OrbitControl:
_cpu._system.OrbitController.Control(_busData);
break;
case OrbitF2.OrbitROSCommand:
_cpu._system.OrbitController.SendROSCommand(_busData);
break;
default:
throw new InvalidOperationException(String.Format("Unhandled orbit F2 {0}.", of2));
}
}
