assume cs:ll,ds:sj
sj segment
db 'mothovtuS'
sj ends
ll segment
start: mov ax,sj
mov ds,ax
mov bx,3
mov al,[bx]
and al,1101111b
mov [bx],al
mov al,[bx+3]
and al,11011111b
mov [bx].3,al
mov al,[bx+1]
and al,11011111b
mov 1[bx],al
mov al,[bx+2]
and al,00100000b
mov [bx+2],al
mov ax,4c00h
int 21h
ll ends
end start
我想把mothovtuS这段字符的367该成大写 最后的S改成小写
为什么最后的效果不一样啊
????
变成这样了
assume cs:ll,ds:sj
sj segment
db 'mothovtuS'
sj ends
ll segment
start: mov ax,sj
mov ds,ax
mov bx,2
mov al,[bx]
and al,11011111b
mov [bx],al
mov al,[bx+3]
and al,11011111b
mov [bx].3,al
mov al,[bx+1]
and al,11011111b
mov 1[bx],al
mov al,[bx+2]
or al,00100000b
mov [bx+2],al
mov ax,4c00h
int 21h
ll ends
end start
最后面的AND因该改成OR
不过你那个已经是小写了
写不写已经没有多大用处; 了
还有你应该从0开始数
就对了
你的错误如下：
1：and al,110