Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!linus!wivax!decvax!decwrl!sun!megatest!ubvax!arvind From: arvind@ubvax.UUCP Newsgroups: net.lang.c Subject: Re: RE: C and real hardware - (nf) Message-ID: <129@ubvax.UUCP> Date: Sat, 25-Jun-83 14:27:12 EDT Article-I.D.: ubvax.129 Posted: Sat Jun 25 14:27:12 1983 Date-Received: Sun, 26-Jun-83 02:15:19 EDT Lines: 13 #R:rlgvax:-34500:ubvax:4100002:000:380 ubvax!arvind Apr 30 11:15:00 1983 ***** ubvax:net.lang.c / arvind / 7:10 pm Apr 29, 1983 ***** ubvax:net.lang.c / rlgvax!tom / 4:40 pm Apr 28, 1983 RE: possible undesired optimization of code like: while (ADDR->c_reg&BUSY) ; "shared" in place of "volatile" or "unregister" may be a nicer attribute for vaibales "shared" between processes; the latter includes external device processes in case of drivers.