Re: little calendar hack
Article: 7933 of alt.hackers From: kenh@cmf.nrl.navy.mil (Ken Hornstein) Newsgroups: alt.hackers Subject: Re: little calendar hack Date: 1 Jun 1995 11:47:07 -0400 Organization: Naval Research Lab, Connection Machine Facility Lines: 24 Approved: but of course Message-ID: 3qkndr$2pk@elvis.cmf.nrl.navy.mil NNTP-Posting-Host: elvis.cmf.nrl.navy.mil Status: RO
In article <tdi.801952834@choices>, Tod D. Ihde <tdi@choices.jmalaw.com> wrote: >ObHack: >I recently mounted a momentary switch on my steering wheel. When someone's >tailing me, I just thumb the switch until they back off. Unfortunately, it >doesn't seem to work on some people. So what does the switch _do_? (I assume it must do _something_, as I can't imagine that people back off just because you're pressing a switch that does nothing :-) ) Trigger your brake lights, perhaps? ObHack: I've been playing around with a small MC68HC11 board called the Mini Board (developed at MIT for robotics work). A company called Coactive Aesthetics did a port of GCC to the 68HC11, and they ported a free assembler/ linker to it, but the linker didn't have any concept of library files. This meant if you had a library of routines that you wanted to include, you had to list every object file that contained routines you used in your C code. You couldn't just include them _all_, as the chip I was using only had 2K of EEPROM and space is at a premium. I looked at the linker, figured out how it worked, and made it so if it found any unresolved symbols it looked through a BSD ar file for definitions of these symbols. Voila! A linker that now knows how to search library files. Now I have a nice library of routines that only get included if I use them in my C code. --Ken