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When the call instruction is executed the topmost element of stack comes out to be

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in Microcontroller by (14.6k points)
When the call instruction is executed the topmost element of stack comes out to be

(a) the address where stack pointer starts

(b) the address next to the call instruction

(c) address of the call instruction

(d) next address of the stack pointer

This question was addressed to me during an internship interview.

I want to ask this question from Jump, Loop and Call Instructions in division 8051 Microcontroller of Microcontroller

1 Answer

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by (24.2k points)
Right choice is (b) the address next to the call instruction

Best explanation: The topmost element of the stack is the address of the instruction next to the call instruction so that when RET is executed then PC is filled with that address and so the pointer moves to the main program and continue with its routine task.

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