Question

汇编新手求助！！！ 提示 error A2070: invalid instruction operends

下面是程序

assume ds:datasg, cs:codesg,ss:stacksg
stacksg segment
dw 0,0,0,0,0,0,0,0
stacksg ends

datasg segment
db '1.display.......'
db '2.brows.........'
db '3.replace.......'
db '4.modify........'
datasg 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,0
mov cx,4
s: mov al,[bx+2+si]
and al,11011111b
mov [bx+si+2],al
inc si
loop s

add bx,16
pop cx
loop s0
mov ax,4c00h
int 21h
codesg ends
end start
自己发现了 要写成【bx+si+idata】的形式就好了····s：后面写错了·····

Answer 1

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