Path: utzoo!attcan!uunet!husc6!mit-eddie!killer!elg From: elg@killer.DALLAS.TX.US (Eric Green) Newsgroups: comp.arch Subject: Re: RCA 1802 (was: PC history) Summary: History: the RCA 1802 Keywords: history, pc, RCA, 1802 Message-ID: <5109@killer.DALLAS.TX.US> Date: 7 Aug 88 02:33:20 GMT References: <5458@ecsvax.uncecs.edu> <1876@looking.UUCP> <753@applix.UUCP> <3884@sequent.UUCP> Organization: The Unix(R) Connection, Dallas, Texas Lines: 16 Distribution: Expires: Sender: Reply-To: Followup-To: In message <3884@sequent.UUCP>, jjb@sequent.UUCP (Jeff Bob Berkowitz) says: >For many years, the 1802 was the ONLY choice for a wide variety of specialized >applications requiring low power, high noise immunity, and so on. It was >also extremely simple to apply. In general, a "technology to fit the times" - >also, the only processor with a SEX instruction ("SEt X", yes it's true :-). > Actually, the 6809 has a SEX instruction, too (Sign extend .X register). OF course, the 6809 was also 6 or 7 years later... I don't know if the original 6800 had SEX, alas, maybe someone a bit more, err, ancient, than I, can fill us in on that. -- Eric Lee Green ..!{ames,decwrl,mit-eddie,osu-cis}!killer!elg Snail Mail P.O. Box 92191 Lafayette, LA 70509 MISFORTUNE, n. The kind of fortune that never misses.