Question: . global main . section . text main: @ Initialize registers mov r 0 , # 0 @ Counter for Fibonacci sequence mov r 1

.global main
.section .text
main:
@ Initialize registers
mov r0, #0 @ Counter for Fibonacci sequence
mov r1, #1 @ Current Fibonacci number
mov r2, #0 @ Previous Fibonacci number
mov r3, #6 @ Number of Fibonacci terms to compute
mov r4, #0 @ Loop counter
@ Allocate memory for Fibonacci sequence
ldr r5,=fibonacci_sequence
mov r6, #4 @ Size of each element in bytes
fibonacci_loop:
@ Store current Fibonacci number in memory
str r1,[r5], r6
@ Calculate next Fibonacci number
add r4, r4, #1 @ Increment loop counter
cmp r4, r3 @ Compare loop counter with total terms
beq end_fibonacci @ Exit loop if all terms are computed
@ Calculate next Fibonacci number using recursion
bl fibonacci_recursive
b fibonacci_loop @ Repeat loop
end_fibonacci:
@ Exit program
mov r7, #1 @ Exit syscall
mov r0, #0 @ Exit status
svc 0 @ Call kernel
fibonacci_recursive:
@ Recursive Fibonacci calculation
push {lr} @ Save return address
sub r3, r3, #1 @ Decrement term counter
cmp r3, #1 @ Check if term is 1 or 0
blo one_or_zero
@ Calculate Fibonacci number
mov r7, r1
add r1, r1, r2 @ F(n)= F(n-1)+ F(n-2)
mov r2, r7 @ Update previous Fibonacci number
@ Restore return address and return
pop {pc}
one_or_zero:
@ Handle base cases (Fibonacci sequence starts with 0,1)
mov r1, r3 @ Set F(1)=1
b end_recursive
end_recursive:
pop {pc} @ Return from recursive call
.section .data
fibonacci_sequence:
.skip 24 @ Space for 6 Fibonacci numbers (4 bytes each)
the code is not working I tried running it on onlinegdb

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Programming Questions!