numbers DCD    50, 10, 40, 30, 20

        LDR    R0, =numbers   ; R0 has base address (beginning) of array
        MOV    R1, #5         ; R1 is number of items

        MOV    R2, #0         ; R2 is final sum
        MOV    R3, #0         ; R3 is 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, or R4=R0[R3*4] in Java
        ADD    R2, R2, R4     ; update sum (R1) with item (R4)
        ADD    R3, R3, #1     ; update index by 1 for next cell

        BAL    LOOP           ; go back to check if done
DONE