//----------------------------------------------------------------------
// hello.s
// Author: Bob Dondero and William Ughetta
//----------------------------------------------------------------------

        .section .rodata

greetingStr:
        .string "hello, world\n"

//----------------------------------------------------------------------

        .section .data

//----------------------------------------------------------------------

        .section .bss

//----------------------------------------------------------------------

        .section .text

        //--------------------------------------------------------------
        // Write "hello, world\n" to stdout.  Return 0.
        // int main(void)
        //--------------------------------------------------------------

        // Must be a multiple of 16
        .equ    MAIN_STACK_BYTECOUNT, 16

        .global main

main:
  
        // Prolog
        sub     sp, sp, MAIN_STACK_BYTECOUNT
        str     x30, [sp]
        
        // printf("hello, world\n")
        adr     x0, greetingStr
        bl      printf
        
        // Epilog and return 0
        mov     w0, 0
        ldr     x30, [sp]
        add     sp, sp, MAIN_STACK_BYTECOUNT
        ret

        .size   main, (. - main)