From owner-cvs-src@FreeBSD.ORG Sat Dec 3 06:05:25 2005 Return-Path: X-Original-To: cvs-src@freebsd.org Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6441316A41F; Sat, 3 Dec 2005 06:05:25 +0000 (GMT) (envelope-from PeterJeremy@optushome.com.au) Received: from mail09.syd.optusnet.com.au (mail09.syd.optusnet.com.au [211.29.132.190]) by mx1.FreeBSD.org (Postfix) with ESMTP id 44F8143D53; Sat, 3 Dec 2005 06:05:24 +0000 (GMT) (envelope-from PeterJeremy@optushome.com.au) Received: from cirb503493.alcatel.com.au (c220-239-19-236.belrs4.nsw.optusnet.com.au [220.239.19.236]) by mail09.syd.optusnet.com.au (8.12.11/8.12.11) with ESMTP id jB365HKS016282 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO); Sat, 3 Dec 2005 17:05:17 +1100 Received: from cirb503493.alcatel.com.au (localhost.alcatel.com.au [127.0.0.1]) by cirb503493.alcatel.com.au (8.12.10/8.12.10) with ESMTP id jB365GHh041748; Sat, 3 Dec 2005 17:05:17 +1100 (EST) (envelope-from pjeremy@cirb503493.alcatel.com.au) Received: (from pjeremy@localhost) by cirb503493.alcatel.com.au (8.12.10/8.12.9/Submit) id jB365GjE041747; Sat, 3 Dec 2005 17:05:16 +1100 (EST) (envelope-from pjeremy) Date: Sat, 3 Dec 2005 17:05:16 +1100 From: Peter Jeremy To: ticso@cicely.de Message-ID: <20051203060516.GM32006@cirb503493.alcatel.com.au> References: <200512022236.jB2MaEI8090052@repoman.freebsd.org> <20051202233249.GA1299@freebie.xs4all.nl> <20051202234929.GI44012@cicely12.cicely.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20051202234929.GI44012@cicely12.cicely.de> User-Agent: Mutt/1.4.2.1i X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc Cc: cvs-src@freebsd.org, src-committers@freebsd.org, cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/dev/ic via6522reg.h X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 03 Dec 2005 06:05:25 -0000 On Sat, 2005-Dec-03 00:49:30 +0100, Bernd Walter wrote: >Mmmm - very interesting stuff - I used the 6522 as well as the 6821 >on many self build 6502 and 68k based systems. ... >But honestly - I wasn't aware that a modern computer system still uses >them. You means things like nec765, i8237, NS8250, i8259, MC146818? One of my work colleagues was surprised to discover that his brand new computer still uses peripheral chips (embedded in ASICs) that were designed before he was born... Isn't backward compatibility a wonderful thing :-) At least back then the IC vendors would publish programming details... -- Peter Jeremy