Question

Registers R0-R31 are used for what type of works?

(a) they are used for arithmetic and logic instructions

(b) they are used for data copy

(c) they are used for calculations

(d) none of the mentioned

The question was asked in an international level competition.

I'm obligated to ask this question of Architecture in division AVR Microcontroller of Microcontroller

Answer 1

Right option is (a) they are used for arithmetic and logic instructions

Easiest explanation: GPRs are used for implementing arithmetic and logic instructions in the controller. They do the same work as the accumulator does in the other microcontrollers and microprocessors.