@echo off
REM ****************************************************************
REM *** Reboot_2.bat - Reboot computer by jumping to BIOS reboot ***
REM ***              routine.  This is an example of the CEnvi   ***
REM ***              asm() function.  To provide protection      ***
REM ***              from accidentaly rebooting, you must        ***
REM ***              enter PLEASE as the first parameter.        ***
REM ****************************************************************


REM **************************************************************
REM *** Check that "PLEASE" is the first parameter.  CEnvi     ***
REM *** return errorlevel if it is not please.                 ***
REM **************************************************************
CEnvi return( strcmpi("%1","Please") ? 1 : 0 )
if errorlevel 1 GOTO PLEASE

REM **************************************************************
REM *** A routine for rebooting is in the BIOS at location     ***
REM *** FFFF:0000.  To reboot, will use the CEnvi asm()        ***
REM *** to execute the machine code: JMPF FFFF:0000, which in  ***
REM *** machine code is the byte sequence EA 00 00 FF FF.      ***
REM **************************************************************
CEnvi poke(0x472,0x1234,UWORD16); asm('\xEA\x00\x00\xFF\xFF');

:CENVI_EXIT

:PLEASE
ECHO Reboot_2.bat will reboot your computer.  To execute Reboot.bat you
ECHO must enter: REBOOT_2 PLEASE