[2023-02-19 18:18] 实验6
assume cs:codesg,ds:datasg,ss:stacksg
datasg segment
db '1. display '
db '2. brows '
db '3. replace '
db '4. modify '
datasg ends
stacksg segment
dw 0,0,0,0,0,0,0,0
stacksg ends
codesg segment
start: mov ax, stacksg
mov ss, ax
mov sp, 16
mov ax, datasg
mov ds, ax
mov bx, 0
mov cx, 4
s0: push cx
mov si, 3
mov cx, 4
s: mov al, [bx+si]
and al, 11011111b
mov [bx+si], al
inc si
loop s
add bx, 16
pop cx
loop s0
mov ax, 4c00H
int 21H
codesg ends
end start
datasg segment
db '1. display '
db '2. brows '
db '3. replace '
db '4. modify '
datasg ends
stacksg segment
dw 0,0,0,0,0,0,0,0
stacksg ends
codesg segment
start: mov ax, stacksg
mov ss, ax
mov sp, 16
mov ax, datasg
mov ds, ax
mov bx, 0
mov cx, 4
s0: push cx
mov si, 3
mov cx, 4
s: mov al, [bx+si]
and al, 11011111b
mov [bx+si], al
inc si
loop s
add bx, 16
pop cx
loop s0
mov ax, 4c00H
int 21H
codesg ends
end start
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