Date:	Wed, 27 Sep 2000 23:34:59 +0530
Message-Id:	<200009271804.XAA01892@midpec.com>
From:	Prashant TR <tr AT midpec DOT com>
To:	djgpp AT delorie DOT com
CC:	eliz AT is DOT elta DOT co DOT il
In-reply-to:	message from Prashant TR on 27 Sep 2000 23:15:27 +0530
Subject:	Re: Rebooting the PC
References:	<Pine DOT SUN DOT 3 DOT 91 DOT 1000927070443 DOT 26042B AT is>
Reply-To:	djgpp AT delorie DOT com

| Date: 27 Sep 2000 23:15:27 +0530
| From: Prashant TR <tr AT midpec DOT com>
| 
|    smsw ax
|    test al, 1
|    jnz try64
|    cli
| hltloop:
|    hlt
|    jmp hltloop
| try64:
|    mov al, 0feh
|    out 64h, al
|    jmp hltloop

This one attempts to halt the system. But for rebooting, try this
code.

   mov al, 0feh
   out 64h, al
   cli
hltloop:
   hlt
   jmp hltloop

Windows generates a GPF for the hlt instruction (with interrupts
cleared).

-- 
Prashant TR <tr AT midpec DOT com>
Web: http://www.midpec.com/

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