Path: utzoo!attcan!uunet!mcsun!unido!uklirb!gerten
From: gerten@uklirb.UUCP (Rainer Gerten)
Newsgroups: comp.sys.ibm.pc
Subject: Re: System boot
Summary: Try debug with input-file
Keywords: system boot
Message-ID: <7924@uklirb.UUCP>
Date: 11 Jan 90 09:43:49 GMT
References: <945@excelan.COM> <77@qmsseq.imagen.com>
Reply-To: gerten@uklirb.UUCP (Rainer Gerten)
Followup-To: comp.sys.ibm.pc
Organization: University of Kaiserslautern, W-Germany
Lines: 34

In article <77@qmsseq.imagen.com> pipkins@qmsseq.UUCP (Jeff Pipkins) writes:
>The int 19h vector is supposed to do a warm boot.  Like you, I have 
>experienced frequent hang-ups instead of boots when calling it.  I'm
>not sure why, either.
>
>To synthesize a cold boot, just jump to location FFFF:0000.  The 8086
>initializes its CS to FFFF and its IP to 0.
>
>This might work:>   echo g =FFFF:0000 | debug

The solution with debug is ok, but on your harddisk remain two
files for the piping. Try this solution (it does a warm boot):

------------------------------
   debug < BOOT.DTA > NUL
------------------------------

The contents of the file BOOT.DTA is:

------------------------------
   e 40:72 34 12
   g=ffff:0
------------------------------

This set a warm-boot-flag into the bios-area and then starts
the boot-process without a memory-test (it's faster).

+------------------------------------------------+
| Rainer Gerten                                  |
| University of Kaiserslautern                   |
| West-Germany                                   |
| Mail: gerten@uklirb.informatik.uni-kl.de       |
| Phone: 49(631)205-2510                         |
+------------------------------------------------+