Question: Question 2: Stack and subroutines (30 pts) Solve this question by writing subroutines which get parameters and return value via the stack! Explain the purpose

Question 2: Stack and subroutines (30 pts)

  • Solve this question by writing subroutines which get parameters and return value via the stack!
  • Explain the purpose of each instruction!

a- Write a 32-bits addition subroutine that gets two operands from the stack and returns the sum. Each operand must be a 32-bits integer.

b- A recursive subroutine that computes fib(n) = fib(n-1)+fib(n-2), fib(0) = 0, fib(1) = 1

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