public void Execute_Underflow()
{
reg[17] = 0x0;
reg[18] = 0x1;
target = new SubInstruction(16, 17, 18);
target.Execute(ref pc, mem, reg);
Assert.AreEqual(0xFFFFFFFF, reg[16]);
Assert.AreEqual(0x4, pc);
}
public void Execute_NegativeNumber()
{
reg[17] = 0x3;
reg[18] = 0xFFFFFFFF;
target = new SubInstruction(16, 17, 18);
target.Execute(ref pc, mem, reg);
Assert.AreEqual(0x4, reg[16]);
Assert.AreEqual(0x4, pc);
}
