ARM Accredited Engineer EN0-001 Question # 4 Topic 1 Discussion
EN0-001 Exam Topic 1 Question 4 Discussion:
Question #: 4
Topic #: 1
Implementing loops using a decrementing counter which exits the loop when a counter reaches zero can be beneficial for power and performance. This is because:
A.
A simpler branch instruction can be used.
B.
Decrementing variables uses less power than incrementing them.
C.
The decrement and branch operations can be encoded as a single instruction.
D.
The loop termination condition check can be integrated into the subtract operation.
Chosen Answer:
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