Repeat Problem 1 for the following CISC instructions.(a) Add Memory Indirect: R[DR] d R[SA...

Repeat Problem 1 for the following CISC instructions.

(a) Add Memory Indirect: R[DR] d R[SA] + M[M[R[SB]]]

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(b) Add to Memory: M[R[DR]] d M[R[SA]] + R[SB]

Problem 1

Repeat Problem 2 for the following CISC instructions that are specified by register transfer statements.

(a) Push: R[SA] d R[SA] + 1 followed by M[R[SA]] d R[SB]. Assume DR=SA.

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(b) Pop: R[DR] d M[R[SA]] followed by R[SA] d R[SA] − 1. Assume SB=SA.

Problem 2

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