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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,b3e361752e757bb8 X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,UTF8 Received: by 10.66.86.98 with SMTP id o2mr4329508paz.29.1350571244551; Thu, 18 Oct 2012 07:40:44 -0700 (PDT) Received: by 10.68.212.72 with SMTP id ni8mr3741098pbc.14.1350571244486; Thu, 18 Oct 2012 07:40:44 -0700 (PDT) Path: s9ni21683pbb.0!nntp.google.com!kt20no3638786pbb.1!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: comp.lang.ada Date: Thu, 18 Oct 2012 07:40:44 -0700 (PDT) In-Reply-To: Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=66.126.103.122; posting-account=duW0ogkAAABjRdnxgLGXDfna0Gc6XqmQ NNTP-Posting-Host: 66.126.103.122 References: <422cd822-6d9a-4909-9009-995d845180b8@googlegroups.com> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <25c0b8d7-4fed-4d11-ba56-da3d34a6aed2@googlegroups.com> Subject: Re: Fixed Point number mul, is it a bug? From: Adam Beneschan Injection-Date: Thu, 18 Oct 2012 14:40:44 +0000 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Date: 2012-10-18T07:40:44-07:00 List-Id: On Thursday, October 18, 2012 3:42:26 AM UTC-7, Ian Clifton wrote: > Didn=E2=80=99t some IBM machines have a floating=E2=80=90point format whe= re the exponent > was decimal rather than binary? I don't know about IBM, but my first programming job was on a Burroughs mai= nframe (B3500, I think) that represented *all* numbers in decimal--integer,= floating-point, everything. I don't even think it had any binary arithmet= ic instructions (although I think it did have bitwise AND, OR, XOR operatio= ns). Even operand addresses in instructions were in decimal (hex digits A-= F in certain positions in an address signified some special indexing mode, = hex digits in other places would just cause a fault). -- Adam