public void OnFetchWillReturnFetchedValue()
{
ushort absoluteAddress = 0x1944;
cpu.AbsoluteAddress = absoluteAddress;
byte fetchedValue = 0x52;
byte startingFetchedValue = 0xd1;
cpu.Fetched = startingFetchedValue;
A.CallTo(() => cpu.Read(absoluteAddress)).Returns(fetchedValue);
var fetchResult = addressMode.Fetch();
VerifyFetchResult(fetchResult, fetchedValue, startingFetchedValue);
}
protected AddressModeTests()
{
cpu = A.Fake <ICpu>();
cpu.ProgramCounter = ProgramCounter;
A.CallTo(() => cpu.Read(ProgramCounter)).Returns(ReadValue);
}
protected byte ReadFromStack()
{
cpu.StackPointer++;
return(cpu.Read((ushort)(0x0100 + cpu.StackPointer)));
}