Calculating Max and Min

计算100个整数的最大值和最小值
方法：使用space创建连续的空间用于存储数据，存储100个整数，初始化最大值和最小值为第一个数，和100个数逐次比较，求得最大值和最小值

stack_top   EQU 0x30200000          

    AREA compare,CODE,READWRITE
    code32
    entry
start                                       ;/* code start */
        ldr     r0,= array                  ;r0 point to the 100 array
        mov     r2, #1
        ldr     sp,= stack_top
arrayinit
        mul     r3, r2, r2
        str     r3, [r0], #4
        add     r2, r2, #1
        cmp     r2, #101
        bne     arrayinit
maxmininit
        ldr     r0,= array
        ldr     r2, [r0]                ;r2 point to the max
        ldr     r3, [r0]                ;r3 point to the min
        mov     r1, #1
maxmin
        ldr     r4, [r0], #4
        cmp     r2, r4
        movcc   r2, r4
        cmp     r4, r3
        movcc   r3, r4
        add     r1, r1, #1
        cmp     r1, #101
        bne     maxmin
stop                                    
        b       stop

        ltorg
array   space   100