.section .text
.globl _start
_start:

    # Open file
    movq 16(%rsp), %rdi # Select first argument as file name
    movq $0, %rsi       # Select read only
    movq $0, %rdx       # Unused mode for read only
    movq $2, %rax       # Select open syscall
    syscall             # Open file, file descriptor returned in rax

    movq %rax, %rdi     # Save file descriptor in r15
    call parse_file     # Convert file to array format

    movq %rdx, %r15     # Save length of array in r15

    movq %rax, %rdi     # Select address of array
    movq %r15, %rsi     # Select length of array
    movq $0, %rdx       # Sort by key 0
    movq insertion_sort, %rcx   # Use insertion sort
    call sorter         # Sort the array
    
    movq %rax, %rdi     # Select the pointer to the array
    movq %r15, %rsi     # Select length of array
    call print_buffer   # Print array

    movq $60, %rax      # Select exit syscall
    movq $0, %rdi       # Exit code 0
    syscall