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What is a key characteristic of a recursive function in ARM assembly?

easy📝 Conceptual Q1 of 15
ARM Architecture - Subroutines and Stack
What is a key characteristic of a recursive function in ARM assembly?
AIt uses only one register for all operations
BIt executes only once
CIt never uses the stack
DIt calls itself with modified parameters
Step-by-Step Solution
Solution:

  1. Step 1: Understand recursion concept

    A recursive function is one that calls itself to solve smaller parts of a problem.

  2. Step 2: Apply to ARM assembly

    In ARM assembly, recursion means the function calls itself with changed parameters to progress towards a base case.

  3. Final Answer:

    It calls itself with modified parameters -> Option D

  4. Quick Check:

    Recursion = Self-call with changed input [OK]
Quick Trick: Recursive means function calls itself with new input [OK]
Common Mistakes:
  • Thinking recursion never uses the stack
  • Assuming recursion executes only once
  • Believing recursion uses only one register

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