Question

The 8-bit registers R1, R2, R3, and R4 initially have the following values:

R1 - 1111 0010, R2- 11111111 , R3- 1011 1001 , R4-11101010 . Determine the 8-bit values in each register after the execution of the following sequence of microoperations. 1) R1 <-R1 + R2 , 2) R3<- R3 ^ R4, R2 <-  R2 + 1 , 3) R1 <- R1 – R3                                                                                                             

Answer 1

The answer to your question is provided below