Repeat Problem for the CISC instruction, Memory Vector Add. This instruction uses the cont...

Repeat Problem for the CISC instruction, Memory Vector Add. This instruction uses the contents of R[SB] as the vector length. It adds the vector with its least significant element in memory pointed to by R[SA] to the vector with its least significant element in memory pointed to by R[DR]. The result of the addition replaces the vector with its least significant element pointed to by R[DR].

Problem

Write microcode for the execution part of each of the following CISC instructions. Give both a register transfer description and binary or hexadecimal representations similar to those shown in Table for the binary code for each microinstruction.

Table Example Micro programs for CISC Architecture

(a) Branch if overflow

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(b) Branch if greater than zero

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(c) Compare less than