X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com X-Virus-Scanned: amavisd-new at neurotica.com Message-ID: <50A6DE97.8090908@neurotica.com> Date: Fri, 16 Nov 2012 19:47:19 -0500 From: Dave McGuire User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:16.0) Gecko/20121028 Thunderbird/16.0.2 MIME-Version: 1.0 To: geda-user AT delorie DOT com Subject: hacking HP calculators, was Re: [geda-user] OT: ARM JTAG connectors References: <50A6BBDA DOT 7000100 AT neurotica DOT com> <201211162224 DOT qAGMO6lv024723 AT envy DOT delorie DOT com> <50A6C8F0 DOT 3000104 AT neurotica DOT com> <50A6D432 DOT 3090406 AT neurotica DOT com> In-Reply-To: X-Enigmail-Version: 1.4.5 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Reply-To: geda-user AT delorie DOT com On 11/16/2012 07:11 PM, Russell Dill wrote: >> And...HEY...are those guys hacking on HP calculators, squirting >> user-written code into their innards?? > > All the newly produced HP calculators run ARM cores afaik, with the > remakes of older calculators (HP-12C, 15C, etc) running the original > ROM in an emulator. I'd heard about that awhile back. But I'm pretty sure the 35s (in particular) is 6502-based. > The hp 30b is a popular platform for hacking: > http://commerce.hpcalc.org/34s.php That sounds like fun. I may have to get into that! -Dave -- Dave McGuire, AK4HZ New Kensington, PA