From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=0.2 required=5.0 tests=BAYES_00,INVALID_MSGID, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,f3f9104dada53163 X-Google-Attributes: gid103376,public From: "Shmuel (Seymour J.) Metz" Subject: Re: An interesting quote on Java and C++ Date: 1997/09/25 Message-ID: <342AD83E.2C92@gsg.eds.com>#1/1 X-Deja-AN: 275540812 References: <97092509394068@psavax.pwfl.com> Organization: EDS MS Reply-To: nospam@gsg.eds.com Newsgroups: comp.lang.ada Date: 1997-09-25T00:00:00+00:00 List-Id: Marin David Condic, 561.796.8997, M/S 731-96 wrote: > > This gets me curious about the possibility that we may be spending > lots of time in the Ada standard dealing with things that are > non-issues. I ask out of ignorance: Are there any reasonably > popular microprocessors that are *not* twos-compliment machines? AFAIK the only processors around that are not two's complement are: Burroughs processors that have been upgraded by Unisys CDC 6x00 and Cyber line; no longer in production DEC System-20 (still used by CompuServe) GE 600/6000 line, now BULL DPS 8 or some such Univac 1100 line, now Unisys 2200 All of these have small and declining market shares. I don't know whether there is an Ada compiler for any of these, but I suspect that Mr. Dewar would know. I doubt that there would be an economic incentive to do a new compiler for any of them. > It's a little like agonizing over making it convenient to port Ada > to a DEC-10 processor with a 36bit word. That architecture has > long since been relegated to history (and I occasionaly miss it!) As I noted above, the DEC PDP-6/PDP-10 line is not quite dead; CompuServe is still using it, although the hardware comes from a third party vendor. > MDC > > Marin David Condic, Senior Computer Engineer -- Shmuel (Seymour J.) Metz Senior Software SE The values in from and reply-to are for the benefit of spammers: reply to domain eds.com, user msustys1.smetz or to domain gsg.eds.com, user smetz. Do not reply to spamtrap@library.lspace.org