“冒泡法”对一组数进行排序
题目：“冒泡法”对一组数进行排序。
无序字符表：ASDFGHJKLWERTYUIO4683
设计要求：按代码值大小升序或降序排列，并显示排序前后字符表。
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assume ds:data,cs:code
data segment
table db 'ASDFGHJKLWERTYUIO4683'
len = $ -table
data ends
code segment
sta:
mov ax,data
mov ds,ax
mov bx,0b800h
mov es,bx
xor di,di
call disPlay
mov cx,len
again:
xor si,si
mov di,1
push cx
mov cx,len-1
again_2:
mov al,[si]
cmp al,[di]
jb donot
mov ah,[di]
mov [si],ah
mov [di],al
donot:nop
inc di
inc si
loop again_2
pop cx
loop again
mov di,160
call disPlay
mov ah,4ch
int 21h
disPlay:
xor si,si
mov cx,len
again_3:
mov al,[si]
mov es:[di],al
add di,2
inc si
loop again_3
ret
code ends
end sta