//
// demo2:  for loop to sum an array

        .global main, Stop, CodeEnd, DataStart, DataEnd
	.global A, sum, i

	.text
main:

	mov	r0,#0
	movw	r1,#:lower16:sum
	movt	r1,#:upper16:sum
	str	r0,[r1]

        mov     r0,#0
        movw    r1,#:lower16:i
        movt    r1,#:upper16:i
        str     r0,[r1]

while:
        movw    r0,#:lower16:i
        movt    r0,#:upper16:i
	ldr	r0,[r0]		// r0 = i

	cmp	r0,#10
	bge	whileEnd

	// While body

	// sum=sum+A[i]
	movw    r0,#:lower16:sum
        movt    r0,#:upper16:sum
	ldr	r1,[r0]		// r1 = sum

	movw    r2,#:lower16:A
        movt    r2,#:upper16:A

	movw    r3,#:lower16:i
        movt    r3,#:upper16:i
	ldr	r3,[r3]		// r3=i
	add	r3,r3,r3
	add	r3,r3,r3	// r3=4i

	ldr	r2, [r2,r3]	// r2=A[i]
	add	r1,r1,r2	// r1 = RHS (sum+A[i])

	str	r1,[r0]

	// i++ (i=i+1)
	movw    r0,#:lower16:i
        movt    r0,#:upper16:i
	ldr	r1,[r0]
	add	r1,r1,#1
	str	r1,[r0]

	b	while

whileEnd:

Stop:
CodeEnd:
    	nop

/* --------------------------------------------------
   Begin of the permanent program variables
   -------------------------------------------------- */
	.data
DataStart:
A:      .4byte  1, 2, 3, 4, 5, 1, 2, 3, 4, 5
sum:    .skip   4	
i:      .skip   4	
DataEnd:
	.end