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Path: utzoo!watmath!wateng!broehl
From: broehl@wateng.UUCP (Bernie Roehl)
Newsgroups: net.micro.pc
Subject: Re: DOS Calls from Interrupt Routine Query
Message-ID: <1342@wateng.UUCP>
Date: Fri, 24-Aug-84 09:02:38 EDT
Article-I.D.: wateng.1342
Posted: Fri Aug 24 09:02:38 1984
Date-Received: Sat, 25-Aug-84 04:33:52 EDT
References: sri-arpa.12427, <3130@ecsvax.UUCP>
Organization: U of Waterloo, Ontario
Lines: 10

The following may be of some use:
	mov	ah,34h
	int	21h
This sequence returns in ES:BX the address of a byte indicating (when set)
that DOS is in an uninterruptible state (i.e. that no DOS calls should be
made).

-- 
        -Bernie Roehl    (University of Waterloo)
	...decvax!watmath!wateng!broehl