Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!rutgers!cbmvax!grr From: grr@cbmvax.cbm.UUCP (George Robbins) Newsgroups: comp.sys.amiga Subject: Re: Parallel port direct access Message-ID: <1780@cbmvax.cbmvax.cbm.UUCP> Date: Tue, 28-Apr-87 19:06:14 EDT Article-I.D.: cbmvax.1780 Posted: Tue Apr 28 19:06:14 1987 Date-Received: Thu, 30-Apr-87 04:02:24 EDT References: <236@rocky.STANFORD.EDU> Reply-To: grr@cbmvax.UUCP (George Robbins) Distribution: world Organization: Commodore Technology, West Chester, PA Lines: 17 In article <236@rocky.STANFORD.EDU> stergios@rocky.stanford.edu (Stergios Marinopoul) writes: > > I'm trying to figure out how to access the parallel port directly >through hardware, rather than the device handlers. I know that the >parallel port is on the first 8520 (CIAA), and that the register on this chip >dedicated to the parallel port is mapped in memory as a byte address at >BEE101. (page F-2 of the A/W hardware manual). According to all the hardware documentation around here that should be BFE101. Some of the ancient prototypes had different peripheral chips at different addresses. I'm sure you've figured this out by now, but I didn't have to tru-facts at hand before... -- George Robbins - now working for, uucp: {ihnp4|seismo|rutgers}!cbmvax!grr but no way officially representing arpa: cbmvax!grr@seismo.css.GOV Commodore, Engineering Department fone: 215-431-9255 (only by moonlite)