[2009-10-08 22:20] 检测点13.1
(1)[-32768 32767]
(2)
/************7ch终端例程安装程序******************/
assume cs:code
code segment
start:
mov ax,cs
mov ds,ax
mov si,offset jps
mov ax,0
mov es,ax
mov di,0200h
mov cx,offset jpsend-offset jps
cld
rep movsb
mov ax,0
mov es,ax
mov word ptr es:[7ch*4],0200h
mov word ptr es:[7ch*4+2],0h
mov ax,4c00h
int 21h
jps:
push bp
mov bp,sp
add [bp+2],bx
pop bp
iret
jpsend:
nop
code ends
end start
/**************7ch中断例程应用程序****************/
assume cs:code,ds:data
data segment
db "conversation",0
data ends
code segment
start:
mov ax,data
mov ds,ax
mov si,0
mov ax,0b800h
mov es,ax
mov di,12*160
s:
cmp byte ptr [si],0
je ok
mov al,[si]
mov es:[di],al
inc si
add di,2
mov bx,offset s-offset ok
int 7ch
ok:
mov ax,4c00h
int 21h
code ends
end start
(2)
/************7ch终端例程安装程序******************/
assume cs:code
code segment
start:
mov ax,cs
mov ds,ax
mov si,offset jps
mov ax,0
mov es,ax
mov di,0200h
mov cx,offset jpsend-offset jps
cld
rep movsb
mov ax,0
mov es,ax
mov word ptr es:[7ch*4],0200h
mov word ptr es:[7ch*4+2],0h
mov ax,4c00h
int 21h
jps:
push bp
mov bp,sp
add [bp+2],bx
pop bp
iret
jpsend:
nop
code ends
end start
/**************7ch中断例程应用程序****************/
assume cs:code,ds:data
data segment
db "conversation",0
data ends
code segment
start:
mov ax,data
mov ds,ax
mov si,0
mov ax,0b800h
mov es,ax
mov di,12*160
s:
cmp byte ptr [si],0
je ok
mov al,[si]
mov es:[di],al
inc si
add di,2
mov bx,offset s-offset ok
int 7ch
ok:
mov ax,4c00h
int 21h
code ends
end start
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