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Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uflorida!gatech!emcard!stiatl!todd
From: todd@stiatl.UUCP (Todd Merriman)
Newsgroups: comp.sys.ibm.pc,comp.sources.wanted
Subject: Re: Is it possible to re-boot a PC from a program ?
Keywords: reboot.exe
Message-ID: <3785@stiatl.UUCP>
Date: 15 Mar 89 13:12:23 GMT
References: <830@psueea.UUCP>
Reply-To: todd@stiatl.UUCP (Todd Merriman)
Distribution: na
Organization: Sales Technologies Inc., Atlanta, GA
Lines: 112

In article <830@psueea.UUCP> alexc@psu-cs.cs.pdx.edu (Alex Chan) writes:
>
>	Is it possible to write a program to reboot a PC ?



ifdef DOCUMENTATION
; ****************************************************************************
   REBOOT.ASM
   12/18/87
   Todd Merriman

.MODULE           reboot
.LIBRARY          clib
.TYPE             function
.APPLICATION      system
.SYSTEM           msdos
.AUTHOR           Todd Merriman
.LANGUAGE         Assembly
.DESCRIPTION
   Reboot the computer
.ARGUMENTS
   void reboot();
.NARRATIVE
   The reboot function transfers program control to the CPU reset vector, and
   a system reset is performed.  This could be used in a case where a device
   driver was modified.
.CAUTION
   Be sure there are no open files, or any I/O not completed.
.RETURNS
   void
.NOTICE
   Copyright (c) 1987 Future Communications, Atlanta, Georgia
.ENDOC            END DOCUMENTATION
; ****************************************************************************
endif

	.XLIST
	INCLUDE	\HEADER\C.MAC		; symbols and macros for Microsoft
	.LIST

; ****************************************************************************
; data
; ****************************************************************************

	DSEG				; begin data section
RES_VEC	DW	0FFF0H,0F000H           ; reset vector
	ENDDS				; end data section

; ****************************************************************************
; code
; ****************************************************************************

	PSEG				; begin program section

	CFUN reboot                     ; C function declaration

	PUSH 	BP
	MOV	BP,SP

	LEA	SI,RES_VEC              ; load reset vector
	JMP	DWORD PTR DS:[SI]       ; jump there

	POP	BP                      ; this code for good form only
	RET

	CFEND	reboot                  ; end C function

	ENDPS				; end program section


	END				; end assembly


; ****************************************************************************
;  reboot program
;     this is a test for the reboot function
; ****************************************************************************

	PAGE	59,132
;
; Outline for assembly programs to .COM files
;
	.XLIST
	INCLUDE \LAT\HEADER\CSUB.MAC
	.LIST

CODE 	SEGMENT PUBLIC

ASSUME	CS:CODE, DS:CODE, SS:CODE, ES:CODE

	ORG	100H			; .COM origin

MAIN	PROC	FAR

START:	
        CCALL   reboot
	INT	20H			; to DOS
MAIN	ENDP
	
CODE	ENDS

	END	START

; ****************************************************************************
; End REBOOT.ASM
; ****************************************************************************


	...!gatech!stiatl!todd
	Todd Merriman 404-377-TOFU
	Atlanta, GA