X-Authentication-Warning:	delorie.com: mail set sender to djgpp-bounces using -f
From:	RayeR <glaux AT centrum DOT cz>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: running ring0 code under DJGPP
Date:	Sun, 02 Sep 2007 07:40:52 -0700
Organization:	http://groups.google.com
Lines:	17
Message-ID:	<1188744052.577710.243560@d55g2000hsg.googlegroups.com>
References:	<200708300412 DOT l7U4CdBI021314 AT delorie DOT com>
	<OF09B0D706 DOT 223B898A-ON87257347 DOT 00534133-87257347 DOT 005365E6 AT seagate DOT com>
	<1188595285 DOT 964939 DOT 209070 AT d55g2000hsg DOT googlegroups DOT com>
	<fbav4m$v9c$1 AT aioe DOT org>
NNTP-Posting-Host:	89.176.103.156
Mime-Version:	1.0
X-Trace:	posting.google.com 1188744052 5563 127.0.0.1 (2 Sep 2007 14:40:52 GMT)
X-Complaints-To:	groups-abuse AT google DOT com
NNTP-Posting-Date:	Sun, 2 Sep 2007 14:40:52 +0000 (UTC)
In-Reply-To:	<fbav4m$v9c$1@aioe.org>
User-Agent:	G2/1.0
X-HTTP-UserAgent:	Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8.1.6) Gecko/20070802 SeaMonkey/1.1.4,gzip(gfe),gzip(gfe)
Complaints-To:	groups-abuse AT google DOT com
Injection-Info:	d55g2000hsg.googlegroups.com; posting-host=89.176.103.156;
	posting-account=ps2QrAMAAAA6_jCuRt2JEIpn5Otqf_w0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com
Errors-To:	nobody AT delorie DOT com
X-Mailing-List:	djgpp AT delorie DOT com
X-Unsubscribes-To:	listserv AT delorie DOT com

I'm doing some experiments again...
1) Do I need to setup callgate in GDT or can be used LDT as good?
2) How do I allocate GDT descriptor? As I can see, there's only 10h
entries in my GDT under DOS and all are used.
Undew win9x there are plenty of free GDT entries and I'm able to write
there.
3) Under win9x I point callgate to "magic" selector 28h (GDT[5]) which
has following attributes:
GDT[005h]: base = 00000000h, limit = FFFFFFFFh, system: N, DPL = 0,
type: XR*
I don't understnd why, that was taken from some example but seems to
be constant under win9x.
But there's no similar descriptor with cwsdpmi under dos.

BTW I tried cwsdpr0 and it gave all cs,ds,ss PL=0 but I'd like to make
it without it if possible.

- Raw text -