有符号8位整数的冒泡排序

相对于无符号那篇的差别之有第37行的判断转移

;有符号整数的冒泡排序

assume cs:code,ds:data
data segment
        db 61h,84h,93h,0c4h,17h,0ffh,52h,2ah
        ;db 8h,7h,6h,5h,4h,3h,2h,0ffh
data ends

code segment
start:
        mov ax,data
        mov ds,ax       ;定义数据段

        mov cx,7        ;外层循环次数

        call loopi
        mov ax,4c00h
        int 21h

loopi:  
        
        call s
        
        
loop loopi
        ret        ;call loopi返回


s:
        push cx
        mov si,7
s1:        

        mov al,[si]
        mov dl,[si-1]
        cmp al,dl
        jge x    ;符合就不执行交换
        
        xchg al,dl

x:        mov [si],al        ;更新数据
        mov [si-1],dl
        dec si
        loop s1

        pop cx
        ret


code ends
end start