source: trunk/bootcode/special/apm.asm@ 75

; AiR-BOOT (c) Copyright 1998-2008 M. Kiewitz
;
; This file is part of AiR-BOOT
;
; AiR-BOOT is free software: you can redistribute it and/or modify it under
;  the terms of the GNU General Public License as published by the Free
;  Software Foundation, either version 3 of the License, or (at your option)
;  any later version.
;
; AiR-BOOT is distributed in the hope that it will be useful, but WITHOUT ANY
;  WARRANTY: without even the implied warranty of MERCHANTABILITY or FITNESS
;  FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
;  details.
;
; You should have received a copy of the GNU General Public License along with
;  AiR-BOOT. If not, see <http://www.gnu.org/licenses/>.
;
;---------------------------------------------------------------------------
;                                                    AiR-BOOT / APM SUPPORT
;---------------------------------------------------------------------------

IFDEF   MODULE_NAMES
DB 'APM',0
ENDIF

; Here is APM Code to turn off the computer
; Does not work on all BIOSes
; http://stackoverflow.com/questions/678458/shutdown-the-computer-using-assembly

APM_TurnOffComputer            Proc Near  Uses ax bx cx
   mov     ax, 5301h
   xor     bx, bx
   int     15h
   mov     ax, 530Eh
   xor     bx, bx
   mov     cx, 102h
   int     15h
   mov     ax, 5307h
   mov     bx, 1
   mov     cx, 3
   int     15h
   ret                                   ; We should never return here <g>
APM_TurnOffComputer            EndP