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FASTREBOOT V1.0

51自学网 2015-09-08 http://www.51zixue.net
内存驻留键盘激活的快速复位程序,按 Ctrl-F10 就可重启动DOS.

源码:
code segment
assume cs:code,ds:code
org 100h
begin:jmp init
zd db 'FASTREBOOT V1.0 ZDsoft 1995',0dh,0ah,'$'
mes db 'Press CTRL-F10 to fastreboot!',0dh,0ah,'$'
mes1 db 'Already Install!$'
int9 dd ?
mark db 'ZD'
new_int proc far
sti
push ax
push es
xor ax,ax
mov es,ax
in al,60h
test al,80h
jnz exit1
test byte ptr es:[0417h],100b
jz exit1
cmp al,68
jz ok
jmp exit1
ok:
push ax
push bx
push cx
push dx
push bp
push di
push si
push ds

push cs
pop ds
in al,61h
push ax
or al,80h
out 61h,al
pop ax
out 61h,al
mov al,20h
out 20h,al
call my

pop ds
pop si
pop di
pop bp
pop dx
pop cx
pop bx
pop ax

exit1:
pop es
pop ax
jmp cs:int9
new_int endp
my proc near
int 19h
ret
my endp

init :
cli
push cs
pop ds

mov dx,offset zd
mov ah,9
int 21h

mov ax,3509h
int 21h
cmp word ptr es:[bx-2],'DZ'
jnz install
mov dx,offset mes1
mov ah,9
int 21h
mov ah,4ch
int 21h

install:
mov di,offset int9
mov [di],bx
mov [di+2],es
push cs
pop ds
mov dx,offset new_int
mov ax,2509h
int 21h
sti
mov dx,offset mes
mov ah,9
int 21h

mov dx,offset init
int 27h
code ends
end begin


 

 

 
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