Xref: utzoo comp.arch:8661 comp.sys.hp:1671 Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!decwrl!sun!pitstop!texsun!hemaneh.Central.Sun.COM!jthomp From: jthomp@hemaneh.Central.Sun.COM (Jim Thompson Sun Dallas SWAN Engineer) Newsgroups: comp.arch,comp.sys.hp Subject: Re: Was *this* the first RISC chip? Keywords: Hewlett-Packard, microprocessor, RISC Message-ID: <410@texsun.Sun.COM> Date: 8 Mar 89 01:28:34 GMT References: <1532@ncar.ucar.edu> <1068@cantuar.UUCP> Sender: news@texsun.Sun.COM Followup-To: comp.arch Lines: 26 In article <1068@cantuar.UUCP> greg@cantuar.UUCP (G. Ewing) writes: >During a recent fit of idle curiosity, I came across some articles >describing the microprocessor used in many of HP's handheld >calculators from the HP-35 on. >... Ideally I'd like enough info to write a >simulator for it (okay, so I'm wierd). The articles I have (from >the HP Journal) don't go into much detail. Hmm, I've got one (a HP-41 simulator), around here somewhere. If I remember correctly, it even outputs bar-code (TeX source), so you can load the programs into your real HP. You could even use 'symbolic programming' (peek & poke on the 41). Last time I worked on it, I was attempting a window based tool for it. (The ultimate test would be making the goose fly backwards, no?) Perhaps I should look at putting it together and giving it to Rich Salz? Naw.. who would want to run HP-41 simulations on their Cray? :-) Jim Thompson jthomp@central.sun.com "I woudn't recommend sex, drugs, or insanity Network Engineering for everyone, but they've always worked for me." Sun Microsystems -- Hunter S. Thompson