Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site hou3c.UUCP Path: utzoo!watmath!clyde!burl!hou3c!ka From: ka@hou3c.UUCP (Kenneth Almquist) Newsgroups: net.lang.c Subject: Re: What Can't C Do? Message-ID: <410@hou3c.UUCP> Date: Tue, 13-Mar-84 16:09:27 EST Article-I.D.: hou3c.410 Posted: Tue Mar 13 16:09:27 1984 Date-Received: Wed, 14-Mar-84 07:56:43 EST References: <6900@unc.UUCP> Organization: Bell Labs, Holmdel, NJ Lines: 8 One way to reference device registers without using assembly language is to use preprocessor defines like: #define reg (*(int *)0177430) Any C compiler that optimizes this sort of reference is likely to have problems with other types of C code, such as signal handlers. Kenneth Almquist