Path: ...!weretis.net!feeder8.news.weretis.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: John Savard Newsgroups: comp.arch Subject: Re: Stealing a Great Idea from the 6600 Date: Sat, 20 Apr 2024 17:59:12 -0600 Organization: A noiseless patient Spider Lines: 16 Message-ID: References: <71acfecad198c4e9a9b14ffab7fc1cb5@www.novabbs.org> <1s042jdli35gdo092v6uaupmrcmvo0i5vp@4ax.com> <9d1fadaada2ec0683fc54688cce7cf27@www.novabbs.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Injection-Date: Sun, 21 Apr 2024 01:59:14 +0200 (CEST) Injection-Info: dont-email.me; posting-host="927163daac3c1197b41694d2d6822608"; logging-data="4134060"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1//CVtHGwrax7VPFcPU0p/dD0kNQRP2POU=" Cancel-Lock: sha1:4poenvelVYddkyMmJvoOMMOVYCQ= X-Newsreader: Forte Free Agent 3.3/32.846 Bytes: 1911 On Sat, 20 Apr 2024 22:03:21 +0000, mitchalsup@aol.com (MitchAlsup1) wrote: >BGB wrote: >> Sign-extend signed values, zero-extend unsigned values. >Another mistake I mad in Mc 88100. As that is a mistake the IBM 360 made, I make it too. But I make it the way the 360 did: there are no signed and unsigned values, in the sense of a Burroughs machine, there are just Load, Load Unsigned - and Insert - instructions. Index and base register values are assumed to be unsigned. John Savard