From: "Francisco Pastor" <fpastor DOT etra-id AT etra DOT es>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Debug watchpoints in CWSDPMI.
Date: Tue, 17 Apr 2001 16:03:06 +0200
Organization: Telefonica Transmision de Datos
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"Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il> escribió en el mensaje
news:Pine DOT SUN DOT 3 DOT 91 DOT 1010417165008 DOT 15278J-100000 AT is...
>
> On Tue, 17 Apr 2001, Francisco Pastor wrote:
>
> > Please, somedy know if the DPMI services to use debug watchpoints
(0x0b00 to
> > 0x0b03) work with CWSDPMI?
>
> Of course, they do: that's how GDB and FSDB implement hardware-assisted
> watchpoints since long ago.  See src/debug/common/dbgcom.c in
> djlsr203.zip for how this is done.  These functions work in any DPMI host
> I have ever used, including CWSDPMI, QDPMI, and several versions of
> Windows.
>
> > I have tried to use it and seems that do not work.
>
> Details, please.  What did you try to do, and how did it ``not work''?

I have found my error. Simply I forgot to add the segment base address
(__djgpp_base_address) to the address to watch.

Sorry.

Thanks for all