/*
 *  Source name     : ex1_asmprog.s
 *  Executable name : ex1_asmprog
 *  Author          : Jason Fritts
 *  Description     : Compares two numbers and sets r0 to 1 if equal
 * 
 *  Build using these commands:
 *    as --gstabs ex1_asmprog.s -o ex1_asmprog.o
 *    gcc -g ex1_asmprog.o -o ex1_asmprog
 */

.text
.global main			// program entry point

main:
    push	{lr}		// Create stack frame
    push	{r4}		// Save r4

    // start program code
    mov  r1, #5
    mov  r4, #5

    cmp  r1, r4
    bne   false

    mov  r0, #0
    b   end

  false:
    mov  r0, #1			// run 'echo $?' after execution to see value

  end:
    // end program code
    pop		{r4}		// Restore r4
    pop		{pc}		// Exit & return control to OS


.section .rodata		// read-only (e.g. string) data

.section .data			// initialized data

.section .bss			// uninitialized data