Instruction Set Architecture

Question 1

The operation of a processor is determined by the instructions it executes, referred to as

Answer 1

machine instructions or computer instructions

Question 2

The collection of different instructions that a processor can execute is then called the processor’s

Answer 2

instruction set

Question 3

What are the four (4) elements of machine instruction?

Answer 3

1. Operation code.
2. Source operand reference
3. Result operand reference
4. Next instruction reference

Question 4

This specifies the operation to be performed. It is also known as the opcode.

Answer 4

Operation code

Question 5

This encompasses the input for the operation. An operation may involve one or more source operands.

Answer 5

Source operand reference

Question 6

This encompasses the results of the operation

Answer 6

Result operand reference

Question 7

This indicates where the processor should fetch the next instruction

Answer 7

Next instruction reference

Question 8

Operands are represented symbolically (True/False)

Answer 8

true

Question 9

Each symbolic opcode has a fixed binary representation (True/False)

Answer 9

true

Question 10

The arithmetic and logic instructions

Answer 10

Data processing

Question 11

The entry or exit of data into registers and memory locations

Answer 11

Data storage

Question 12

The input and output instructions

Answer 12

Data movement

Question 13

The test and branch instructions

Answer 13

Control