This is what I have so far I need help with the commenting on the assembly code I have included my C code that I commented and this assembly was generated from my C code so it can be of help My assembly code largest(int*, int): push rbp mov rbp, rsp mov QWORD PTR [rbp-24], rdi mov DWORD PTR [rbp-28], esi mov rax, QWORD PTR [rbp-24] mov eax, DWORD PTR [rax] mov DWORD PTR [rbp-4], eax mov DWORD PTR [rbp-8], 1 jmp .L2 .L4: mov eax, DWORD PTR [rbp-8] cdqe lea rdx, [0+rax*4] mov rax, QWORD PTR [rbp-24] add rax, rdx mov eax, DWORD PTR [rax] cmp DWORD PTR [rbp-4], eax jge .L3 mov eax, DWORD PTR [rbp-8] cdqe lea rdx, [0+rax*4] mov rax, QWORD PTR [rbp-24] add rax, rdx mov eax, DWORD PTR [rax] mov DWORD PTR [rbp-4], eax .L3: add DWORD PTR [rbp-8], 1 .L2: mov eax, DWORD PTR [rbp-8] cmp eax, DWORD PTR [rbp-28] jl .L4 mov eax, DWORD PTR [rbp-4] pop rbp ret .LC0: .string "enter the size of an array" .LC1: .string "%d" .LC2: .string "\n Enter the elements in an array:" .LC3: .string "Largest number in array:%d" main: push rbp mov rbp, rsp sub rsp, 224 mov edi, OFFSET FLAT:.LC0 mov eax, 0 call printf lea rax, [rbp-12] mov rsi, rax mov edi, OFFSET FLAT:.LC1 mov eax, 0 call __isoc99_scanf mov edi, OFFSET FLAT:.LC2 mov eax, 0 call printf mov DWORD PTR [rbp-4], 0 jmp .L7 .L8: lea rdx, [rbp-224] mov eax, DWORD PTR [rbp-4] cdqe sal rax, 2 add rax, rdx mov rsi, rax mov edi, OFFSET FLAT:.LC1 mov eax, 0 call __isoc99_scanf add DWORD PTR [rbp-4], 1 .L7: mov eax, DWORD PTR [rbp-12] cmp DWORD PTR [rbp-4], eax jl .L8 mov edx, DWORD PTR [rbp-12] lea rax, [rbp-224] mov esi, edx mov rdi, rax call largest(int*, int) mov DWORD PTR [rbp-8], eax mov eax, DWORD PTR [rbp-8] mov esi, eax mov edi, OFFSET FLAT:.LC3 mov eax, 0 call printf mov eax, 0 leave ret My c code #include // C function to find maximum in arr[] of size n int largest(int a[], int n) { // Initialize large element int large=a[0]; // Traverse array elements from second and // compare every element with current large for(int i=1;i
This is what I have so far I need help with the commenting on the assembly code
I have included my C code that I commented and this assembly was generated from my C code so it can be of help
My assembly code
largest(int*, int):
push rbp
mov rbp, rsp
mov QWORD PTR [rbp-24], rdi
mov DWORD PTR [rbp-28], esi
mov rax, QWORD PTR [rbp-24]
mov eax, DWORD PTR [rax]
mov DWORD PTR [rbp-4], eax
mov DWORD PTR [rbp-8], 1
jmp .L2
.L4:
mov eax, DWORD PTR [rbp-8]
cdqe
lea rdx, [0+rax*4]
mov rax, QWORD PTR [rbp-24]
add rax, rdx
mov eax, DWORD PTR [rax]
cmp DWORD PTR [rbp-4], eax
jge .L3
mov eax, DWORD PTR [rbp-8]
cdqe
lea rdx, [0+rax*4]
mov rax, QWORD PTR [rbp-24]
add rax, rdx
mov eax, DWORD PTR [rax]
mov DWORD PTR [rbp-4], eax
.L3:
add DWORD PTR [rbp-8], 1
.L2:
mov eax, DWORD PTR [rbp-8]
cmp eax, DWORD PTR [rbp-28]
jl .L4
mov eax, DWORD PTR [rbp-4]
pop rbp
ret
.LC0:
.string "enter the size of an array"
.LC1:
.string "%d"
.LC2:
.string "\n Enter the elements in an array:"
.LC3:
.string "Largest number in array:%d"
main:
push rbp
mov rbp, rsp
sub rsp, 224
mov edi, OFFSET FLAT:.LC0
mov eax, 0
call printf
lea rax, [rbp-12]
mov rsi, rax
mov edi, OFFSET FLAT:.LC1
mov eax, 0
call __isoc99_scanf
mov edi, OFFSET FLAT:.LC2
mov eax, 0
call printf
mov DWORD PTR [rbp-4], 0
jmp .L7
.L8:
lea rdx, [rbp-224]
mov eax, DWORD PTR [rbp-4]
cdqe
sal rax, 2
add rax, rdx
mov rsi, rax
mov edi, OFFSET FLAT:.LC1
mov eax, 0
call __isoc99_scanf
add DWORD PTR [rbp-4], 1
.L7:
mov eax, DWORD PTR [rbp-12]
cmp DWORD PTR [rbp-4], eax
jl .L8
mov edx, DWORD PTR [rbp-12]
lea rax, [rbp-224]
mov esi, edx
mov rdi, rax
call largest(int*, int)
mov DWORD PTR [rbp-8], eax
mov eax, DWORD PTR [rbp-8]
mov esi, eax
mov edi, OFFSET FLAT:.LC3
mov eax, 0
call printf
mov eax, 0
leave
ret
My c code
#include <stdio.h>
// C function to find maximum in arr[] of size n
int largest(int a[], int n)
{
// Initialize large element
int large=a[0];
// Traverse array elements from second and
// compare every element with current large
for(int i=1;i<n;i++)
{
// If the current element is greater than large, then assign the value of large with the current element
if(large<a[i])
{
large=a[i];
}
}
return large;
}
int main()
{
// declaration of variables and array size
int n;
int largest_num;
int a[50];
printf("enter the size of an array");
scanf("%d",&n);
printf("\n Enter the elements in an array:");
for(int i=0;i<n;i++)
{
scanf("%d",&a[i]);
}
largest_num=largest(a,n);
printf("Largest number in array:%d",largest_num);
return 0;
}
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