hdlocker.asm

逻辑硬盘隐蔽/加锁程序

code segment
     assume cs:code,ds:code
     org 100h
start:
     jmp begin
msg1 db 0Ah,0Dh,' Babysoft  (R) Hard Disk Locker version 1.0'
     db 0Ah,0Dh,' Copyright (C) 1997.11 LiuYaDing,Babysoft Corp.',0Ah,0Dh
     db 0Ah,0Dh,'     C ...... Lock Hard Disk'
     db 0Ah,0Dh,'     D ...... Only Lock Driver D:'
     db 0Ah,0Dh,'     Q ...... Quit',0Ah,0Dh
     db 0Ah,0Dh,'     Enter your select :(D)?$'
msg2 db 07h,0Ah,0Dh,' Locked OK!',0Ah,0Dh,'$'
msg3 db ' Not fount Driver D:$'
error db 0Ah,0Dh,' Enter error!$'
cxd dw 0
begin:
     mov ax,201h
     mov bx,offset buf
     mov cx,1
     mov cxd,cx
     mov dx,80h
     int 13h
     jc begin
     mov ah,9
     lea dx,msg1
     int 21h
ag1: mov ah,1
     int 21h
     cmp al,'Q'
     jz exitq
     cmp al,'q'
     jz exitq
     cmp al,0Dh
     jz jmd
     cmp al,'D'
     jz jmd
     cmp al,'d'
     jz jmd
     cmp al,'C'
     jz jmc
     cmp al,'c'
     jz jmc
     lea dx,error
     jmp exit
jmd: cmp byte ptr [buf+1D0h],0
     jnz re
     lea dx,msg3
     jmp exit
re:  mov ax,201h
     mov cx,word ptr [buf+1D0h]
     mov cxd,cx
     mov bx,offset buf
     mov dx,80h
     int 13h
     jc re
jmc: mov ah,0A8h
     cld
     mov si,offset buf
     mov di,si
     mov cx,1FEh
ag2: lodsb
     xor al,ah
     rol ah,1
     stosb
     loop ag2
agw: mov ax,301h
     mov bx,offset buf
     mov cx,cxd
     mov dx,80h
     int 13h
     jc agw
     mov dx,offset msg2
     mov ah,9
     int 21h
     mov ax,0FFFFh
     push ax
     xor ax,ax
     push ax
     retf
exit:mov ah,9
     int 21h
exitq:
     int 20h
buf db 0
code ends
     end start