Message-ID:	<3D025329.CA0106FD@yahoo.com>
From:	CBFalconer <cbfalconer AT yahoo DOT com>
Organization:	Ched Research
X-Mailer:	Mozilla 4.75 [en] (Win98; U)
X-Accept-Language:	en
MIME-Version:	1.0
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Question about djgpp's int-wrapper
References:	<5 DOT 0 DOT 2 DOT 1 DOT 2 DOT 20020608134608 DOT 009e4050 AT pop DOT gmx DOT net>
Lines:	14
Date:	Sat, 08 Jun 2002 19:16:45 GMT
NNTP-Posting-Host:	12.90.174.100
X-Complaints-To:	abuse AT worldnet DOT att DOT net
X-Trace:	bgtnsc04-news.ops.worldnet.att.net 1023563805 12.90.174.100 (Sat, 08 Jun 2002 19:16:45 GMT)
NNTP-Posting-Date:	Sat, 08 Jun 2002 19:16:45 GMT
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

Martin Steuer wrote:
> 
> While examining the source of the wrapper in gopint.c I found
> that it does not issue a 'sti' before returning with 'iret'.

x86 machines store the interrupt state with the flags on the
stack.  Thus the iret restores the entry state (which may not have
been enabled - think software interrupts).

-- 
Chuck F (cbfalconer AT yahoo DOT com) (cbfalconer AT worldnet DOT att DOT net)
   Available for consulting/temporary embedded and systems.
   <http://cbfalconer.home.att.net>  USE worldnet address!

- Raw text -