Introduction - If you have any usage issues, please Google them yourself
5 of the operand X and Y after the temporary importation of A and B in the register, the two operational control code register C in temporary control, in accordance with the control code is different from the distribution of the realization of the following steps: 00 control X+ Y01 control of X- Y10 control X and Y11 control X xor Y computing the results of temporary storage in the register D, and then output.