Lecture 2 Fetch Decode Execute Cycle

Question 0

What is an instruction set

Answer 0

An instruction set is the design that defines the set of operations that can be performed by the CPU

Question 1

What is an instruction?

Answer 1

It’s an operation performed by the CPU

Question 2

How do computer architectures vary?

Answer 2

They can have a different number of instructions
The complexity of operations performed by individual instructions can vary
Format
The use of registers
The addressing size and modes

Question 3

What is RISC

Answer 3

Reduced instruction set computer

Question 4

Give some examples of the arithmetic instruction set

Answer 4

Add subtract multiply and divide

Question 5

Give some examples of the logic instruction set

Answer 5

And or not XOR

Question 6

Give some examples of the program control instruction set

Answer 6

Branch subroutine

Question 7

Give some examples of the data movement instructions set

Answer 7

Move load store

Question 8

Give some examples of the input output instructions set

Answer 8

Read write

Question 9

What are OPERANDs

Answer 9

They specify the location of data