Question

Typical 5 steps taken by LEGv8 instructions:

A) Fetch, Decode, Execute, Write-back, Branch
B) Fetch, Decode, Load, Store, Jump
C) Fetch, Load, Store, Execute, Branch
D) Fetch, Decode, Execute, Jump, Write-back

Answer 1

The standard instruction cycle typically consists of five stages: Fetch, Decode, Execute, Memory access, and Write-back. The options provided do not fully match this sequence, but the closest is Option A, despite the fact that 'Branch' is not a separate step but part of the 'Decode' stage.

Step-by-step explanation:

The typical steps taken by LEGv8 instructions in a pipeline architecture are similar to those used in many CPU instruction cycles. Although the question provides multiple choices, the standard pipeline steps for most instruction sets, including the ARM architecture which LEGv8 emulates, can be categorized as follows:

As none of the given options exactly match this sequence, the standard five stages are not fully represented by any single answer provided. However, the closest approximation appears to be Option A, which includes Fetch, Decode, Execute and Write-back, though it includes 'Branch' which typically is considered a part of the 'Decode' stage in many pipelines, not as a separate step.