[Solved] What is wrong with this ARM code?CMP r2, #0 BEQ end MOV r3, #1 end: — Ans: No error, code is correct | ARM Architecture

ARM Architecture - Control Flow Instructions

What is wrong with this ARM code?

CMP r2, #0
BEQ end
MOV r3, #1
end:

ANo error, code is correct

BNo instruction after label 'end'

CMOV instruction is invalid

DBEQ cannot be used after CMP

Step-by-Step Solution

Solution:

Step 1: Verify instruction syntax
CMP r2, #0 sets flags correctly. BEQ end is valid conditional branch. MOV r3, #1 is correct.
Step 2: Check label
Label 'end:' has colon and is properly placed at the end; no instruction needed after if it's the program end.
Final Answer:
No error, code is correct -> Option A
Quick Check:
All syntax valid, label fine [OK]

Quick Trick: Code assembles without errors [OK]

Common Mistakes:

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