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Which of the following is the correct ARM assembly syntax for a conditional branch if the zero flag is clear?

easy📝 Factual Q3 of 15
ARM Architecture - Control Flow Instructions
Which of the following is the correct ARM assembly syntax for a conditional branch if the zero flag is clear?
ABEQ label
BBLT label
CBNE label
DBGE label
Step-by-Step Solution
Solution:

  1. Step 1: Understand zero flag conditions

    BEQ branches if zero flag is set (equal), BNE branches if zero flag is clear (not equal).

  2. Step 2: Identify syntax for zero flag clear

    BNE is the correct syntax to branch if zero flag is clear.

  3. Final Answer:

    BNE label -> Option C

  4. Quick Check:

    Zero flag clear branch = BNE [OK]
Quick Trick: BNE branches when zero flag is clear [OK]
Common Mistakes:
  • Using BEQ instead of BNE
  • Confusing BGE and BLT with zero flag
  • Incorrect syntax like BNE without label

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