Question

The unit that increases the speed of all shift and rotate operations is

(a) memory management unit

(b) execution unit

(c) instruction unit

(d) barrel shifter

I had been asked this question in my homework.

This intriguing question originated from Architecture and Signal Descriptions of 80386 topic in section 32-bit Processors-80386, 80387 and 80486 of Microprocessor

Answer 1

Right option is (d) barrel shifter

To elaborate: The barrel shifter speeds up all shift and rotate operations.