Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site whuxlb.UUCP
Path: utzoo!linus!decvax!harpo!gummo!whuxlb!jph
From: jph@whuxlb.UUCP
Newsgroups: net.micro.pc
Subject: Re: BIOS Comm. Interupt Problem - (nf)
Message-ID: <1340@whuxlb.UUCP>
Date: Sun, 18-Sep-83 22:13:32 EDT
Article-I.D.: whuxlb.1340
Posted: Sun Sep 18 22:13:32 1983
Date-Received: Mon, 19-Sep-83 01:27:42 EDT
Sender: jph@whuxlb.UUCP
Organization: Bell Labs, Whippany
Lines: 14

#R:sri-arpa:-545300:whuxlb:6400018:000:336
whuxlb!jph    Sep 18 22:13:00 1983

I would assume if the real status that they want to
check is just bit 7 of AH on return, then the following
code should be substituted for the CMP:

	test	ah,10000000B

This should produce the desired results. The problem is
that the line status is non-zero when the character is
transmitted correctly, and that is the reason it
fails.