Program for ARMv8 assembly
This is an example of an ARMv8 assembly programme that implements selection kind and sorts an array using selection sort. It also contains procedure calls, and it will print the sorted array via printf. The stored sorted array can be found in the exact same location as the original array. In the data segment, you can declare which array needs to be sorted as well as its size. The program assumes that there is no more than 100 elements within the array, and all numbers are double-words.
.data
array: .dword 1, 5, 2, 8, 4, 7, 3, 6
array_size = .-array
.text
Main page at.global
main:
mov x0, array // x0 = array
mov x1, array_size // x1 = array_size
bl selection_sort // Call selection_sort procedure
bl print_array // Call print_array procedure
mov w0, 0 // Return 0
Ret
selection_sort:
push {x29, x30} // Save x29 and x30 on the stack
mov x29, sp // x29 = sp
// This is the implementation of the selection sort algorithm
pop {x29, x30} // Restore x29 and x30
Ret
print_array:
push {x29, x30} // Save x29 and x30 on the stack
mov x29, sp // x29 = sp
// This is the printf function that prints arrays
pop {x29, x30} // Restore x29 and x30
Ret
Cont..
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