numbers1	DCD		50, 10, 40, 30, 20     ; short array for initial testing

;longer arrays (at least 10 numbers each)
;numbers1	DCD		longer sorted array    ; works=Yes/No
;numbers1	DCD		longer reversed array  ; works=Yes/No
;numbers1	DCD		longer scrambled array ; works=Yes/No
		
		LDR		R0, =numbers1   ; R0 has the base address (beginning) of the array
		MOV		R1, #5         	; R1 is number of items
		
		MOV		R2, #0		; R2 is the final sum
		MOV		R3, #0		; R3 is the current index
LOOP
		CMP		R3, R1		; compare index against size (no <, >, == at this point)
		BEQ		DONE		; leave when done (pick the right comparison for DONE)
		LDR		R4, [R0, R3, LSL #2]	; R4 is current item from memory, R4=*(R0+R3*4), in C
		ADD		R2, R2, R4	; update sum (R1) with the item (R4)
		ADD		R3, R3, #1	; update the index by 1 for next cell
		BAL		LOOP		; go back to check if done
DONE