Question

Which of the following instructions supports parallel execution?

(a) VLIW

(b) TTA

(c) ALU operation

(d) Test-and-set instructions

This question was posed to me by my school principal while I was bunking the class.

My doubt stems from Types of Processors topic in portion Embedded Processors of Embedded Systems

Answer 1

Correct answer is (a) VLIW

To explain I would say: VLIW is a very long instruction word which receives many instructions and is executed in one instructed word. VLIW is majorly designed for instruction-level parallel (ILP) that is, it can execute codes concurrently or parallel in some time. TTA is a transport triggered architecture which is a type of CPU design which programs controlling the internal buses of the processor. Test-and-set is used to write to a memory location and return its old values. ALU used to perform arithmetic and logic operations.