1- The 8 bit-registers R1, R2, R3 and R4 iniially have the following hexadecimal values: RI=BC R2-5D R3-AE R4 A4 The left-most bit'is used as a sign bit where negative numbers are represented in 2's complement. The bits for E (carry out bit) and V (overflow bit) are initially set to zeros. Determine the binary values for RO, R6, R3, R4, E(carry out bit) and V(overflow bit) after executing the following microoperations. b- R6 R2-R1 c- R3ashr R3. d- R4 ashl R4. -R1 R2 R6 V E R1 RO V E R3 R4 R3 R4 V E V E