void emulate_Sub(Instruction instr)
{
var val2 = valueStack.pop();
var val1 = valueStack.pop();
if (val1.isInt32() && val2.isInt32())
{
valueStack.push(Int32Value.Sub((Int32Value)val1, (Int32Value)val2));
}
else if (val1.isInt64() && val2.isInt64())
{
valueStack.push(Int64Value.Sub((Int64Value)val1, (Int64Value)val2));
}
else if (val1.isReal8() && val2.isReal8())
{
valueStack.push(Real8Value.Sub((Real8Value)val1, (Real8Value)val2));
}
else
{
valueStack.pushUnknown();
}
}