From: tanph AT bj DOT col DOT com DOT cn
Message-Id: <199711110614.OAA15157@public.bta.net.cn>
Comments: Authenticated sender is <tanph#mh.bj.col.com.cn@[192.168.0.1]>
To: djgpp AT delorie DOT com
Date: Tue, 11 Nov 1997 14:11:23 +0000
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Subject: NS486SXF development
Precedence: bulk

Hello, DJGPP gurus,

I have a project to develop software for NS486SXF.  NS486SXF is 
National Semiconductor's embedded 486 CPU, it is different from 
Intel 486 in that it only has protected mode and doesn't have memory 
paging mechanism. 

DJGPP is a marvelous programming environment, and I'd like to use it 
to do embedded NS486SXF  software programming if possible. But I find 
it difficult to use DJGPP this way.

(1) The target is only a bare CPU, we don't have and aren't willing 
to have any OS running on it, so I must find a way to convert 
DJGPP-produced program to pure binary format and put it into a 
bootable ROM.

(2) How to debug the program under this circumstance, how to modify
GDB or FSDB in order to run it on a bare CPU?

Any suggestions are appreciated.

Tan Pinghui
tanph AT bj DOT col DOT com DOT cn