Question

6.2

From the book: Fifth Addtion Computer Organization, Design, and Architecture

Sajjan G. Shiva

uwalc of tie Cu. 6.2 In a practical computer, the shift instructions accommodate multiple shifts. Use the adrss ield SHR and SHL to specify the number of shifts. How can you accommodate this modification by a. Changes to HCU b. Changes to microprogram c. Changes to assembler

Answer 1

ANSWER

c) changes to assembler

SHR 5 implies a shift right by 5 bits.

Discuss the assembler modifications needed to accommodate to the multiple-shift SHR in given bit of code.

The hardware is capable of performing only one shift at a time.

Discuss the assembler modifications needed to accommodate multiple-shift SHR.

so that in multiple shift ,shift instruction accommodate to modify assembler.