Fixed vs. Variable Instruction Size

Fixed instructions are smaller than variable instructions.

Fixed instructions are only used for simple operations, while variable instructions are used for complex operations.

Fixed instructions are all the same size, while variable instructions can vary in size depending on the operation or operands. (correct)

Variable instructions are always larger than fixed instructions.

They have a fixed size of 32 bits.

They are only used for simple operations.

They are always smaller than Fixed instructions.

They can vary in size based on the operation or the quantity/types of operands. (correct)

Because specifying registers always requires more space than specifying addresses.

Due to the different quantity/types of operands involved. (correct)

Due to the fixed nature of register specifications compared to variable addresses.

It is not possible for them to require different instruction sizes.

<p>The instructions can freely combine elements of the three previous factors</p> Signup and view all the answers

<p>It is not achievable in any real machine repertoire</p> Signup and view all the answers

<p>Due to inherent limitations in machine design and architecture</p> Signup and view all the answers