Blog Archive: Computer Stuff Page 2

MC68HC11 Assembly Notes

When programming on the Motorola 68HC11 processor, keep in mind that the following command does not work:


The ADDD op code wants 16 bits but ADR1 gives only 8.

It took Ryan and I about an hour to figure out that this was preventing our Operating System from performing A/D conversions correctly.

Apple’s Infinite Loop

Want to contact Apple? Beware – you might get stuck in an infinite loop.

I was doing a little surfing on Apple’s site and came across their address: Apple Computer, Inc., 1 Infinite Loop, Cupertino, CA 95014, USA. Though I’m sure that this amusing tidbit of knowledge is already well known, I thought I’d share it with all my fans (what a joke to think I actually have fans).

If you don’t know what an infinite loop is, think about trying to go in a circle until you reach the end of it. Then consider what might happen if your computer were to attempt this.