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From: bill@hpcvlo.HP.COM (Bill Frolik)
Newsgroups: comp.sys.ibm.pc
Subject: Re: forcing a graphics pixel to on or off, a question
Message-ID: <1610023@hpcvlo.HP.COM>
Date: Fri, 31-Jul-87 12:53:48 EDT
Article-I.D.: hpcvlo.1610023
Posted: Fri Jul 31 12:53:48 1987
Date-Received: Sun, 2-Aug-87 09:48:16 EDT
References: <779@cod.UUCP>
Organization: Hewlett-Packard Co., Corvallis, OR, USA
Lines: 4


Can't you just do a "not ch", followed by an "and es:[bp],ch"?

bf@hp-pcd