private void CheckShift_LastShiftedOutBit(
Alu.ShiftMethod shiftMethod, UInt16 ui16Val, UInt16 count, UInt16 expected, String message)
{
Word word1 = new Word(ui16Val);
Word word2 = new Word(count);
UInt16 actual;
Word notUsed = shiftMethod(word1, word2, out actual);
Assert.AreEqual(expected, actual, message);
}
private static void DoShift(
Alu.ShiftMethod shiftMethod, CpuRegister r, Word operand, FlagRegister fr)
{
UInt16 lastShiftedOutBit;
r.Value = shiftMethod(r.Value, operand, out lastShiftedOutBit);
Boolean overflowFlag = (lastShiftedOutBit != 0);
fr.SetFlags(r, overflowFlag);
}
private void CheckShiftResult(
Alu.ShiftMethod shiftMethod, UInt16 ui16Val, UInt16 count, UInt16 expected, String message)
{
Word word1 = new Word(ui16Val);
Word word2 = new Word(count);
UInt16 notUsed;
Word resultWord = shiftMethod(word1, word2, out notUsed);
WordTest.Check(resultWord, expected, message);
}
