Xref: news2.mv.net comp.os.msdos.djgpp:6908
From: <sandmann AT clio DOT rice DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Thanks everybody. :)  (And another question)
Date: Wed, 07 Aug 1996 13:37:57
Organization: Rice University, Houston, Texas
Lines: 9
Message-ID: <3208e285.sandmann@clio.rice.edu>
References: <839373486 DOT 11729 DOT 0 AT abwillms DOT demon DOT co DOT uk>
Reply-To: sandmann AT clio DOT rice DOT edu
NNTP-Posting-Host: clio.rice.edu
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

> flag: it suggests an sti before iret. Woops. I didn't do that
> It never gave me any trouble, though... the keyboard still works after
> the test handler being installed, under CWSDPMI. Charles - does
> CWSDPMI not set IOPL so as to disable popping the interrupt flag?

CWSDPMI runs at IOPL = 3, so you can change the real interrupt flag
under CWSDPMI without emulation.  This is for speed and simplicity
purposes.  There is no good reason to virtualize the interrupt flag
under DOS alone, so I didn't.