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Date: Wed, 02 Nov 2005 08:48:33 -0500
From: Diego Cueva <dcueva AT todo1 DOT com>
Subject: RE: RE: Why the call instruction points 2 bytes before to the real
 start sub-routine ?
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To: djgpp AT delorie DOT com
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Thanks Hans-Bernhard:

.com file not are my final objective. My Objective is creating a small
operating system to educational purposes, and I need compile C programs
with GCC that can execute in booting time. 32 bits can be an option, if
I can obtain documentation about that ("Hello world with LGTD").

To this moment I have a IPL program with a group small routines in
assemble compiled/linked with "as/ld". This is working fine. But link
that with C compiled code is the WALL to climb now.

I am a experimented C programmer and Operating System teacher.

Thanks for your help.

Att.
Diego Cueva.

-----Original Message-----
From: Hans-Bernhard Broeker [mailto:broeker AT physik DOT rwth-aachen DOT de] 
Sent: Wednesday, November 02, 2005 05:49
To: djgpp AT delorie DOT com
Subject: Re: Why the call instruction points 2 bytes before to the real
start sub-routine ?

Diego Cueva <dcueva AT todo1 DOT com> wrote:

> This dis-assembled code is correct, but when I run the program does
not
> work fine. 

Of course it doesn't --- you're using entirely the wrong tool for the
job.  DOS .com files aren't 32-bit code, and no, there's no simple
machine instruction to turn the machine into 32-bit mode, either.

If DOS-style .com files are what you want to create, DJGPP is not the
tool you need.

> PS. I do not know how I can do post via newsgroup.

... You're managing just fine via the gateway between the newsgroup and
the mailing list.

-- 
Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de)
Even if all the snow were burnt, ashes would remain.


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