Question

The addressing mode used in the instruction PUSH B is

(a) direct

(b) register

(c) register indirect

(d) immediate

This question was posed to me in final exam.

The doubt is from Computer Aided Synthesis of Four Bar Mechanism With Coupler Point topic in section Computer Aided Analysis and Synthesis of Mechanisms of Machine Dynamics

Answer 1

Right answer is (b) register

To explain I would say: There are four types of instruction: –

PUSH A, PUSH B, add α popc

Wherein addressing mode used are as follows: –

PUSH A – Direct

PUSH B – Register

Add – Register indirect

Pop.C – Immediate