numsearch.s

.global _start
_start:
	// program to find a number in an array, if not found, returns -1
	// r0 = pointer to list
	// r1 = return value
	// r2 = target
	// r3 = length of list
	// r4 = counter
	// r5 = target value
	
	ldr r0, =list
	ldr r5, =target
	
	// setting r5 as the value of target, and not the adress using temp register
	ldr r8, [r5]
	mov r5, r8
	
	// clearing r8
	and r8, r8, #0
	
	mov r3, #10
	
	b loop
	
loop:
	// exit condition
	cmp r3, r4
	blt exit
	
	// finding current element
	ldr r2, [r0], #4
	
	add r4, #1
	// loop condition
	cmp r2, r5
	beq equal
	b loop

equal:
	ldr r1, [r0]
	
	// resetting all registers
	and r0, r0, #0
	and r1, r1, #0
	and r3, r3, #0
	and r4, r4, #0
	and r5, r5, #0
	
	//exiting
	mov r7, #1
	swi 0
	
exit:
	// resetting all registers
	and r0, r0, #0
	and r1, r1, #0
	and r3, r3, #0
	and r4, r4, #0
	and r5, r5, #0
	
	mov r7, #1
	swi 0

.data
list:
	.word 1,2,3,4,5,6,7,8,9,10
target:
	.word 1