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CAS on Casio vs HP?
05-12-2014, 09:21 AM
Post: #12
RE: CAS on Casio vs HP?
(05-12-2014 08:01 AM)jebem Wrote:  
(05-11-2014 09:57 PM)Dave Britten Wrote:  So I can't help but wondering... If the Algebra FX line runs on an NEC V30, and uses a ROM-based MS-DOS clone, how much work would it be to get the Casio firmware running on a plain DOS machine? Say, a 95LX or 200LX? You'd have to deal with some keyboard mapping concerns, obviously, but you'd have a lot of extra screen space to display a reference or something. If I did the slightest bit of low-level x86 work, I'd take a crack at it myself. Smile

I'm afraid it is too late for that, this model is over 10 years old now, and most of the published hacking information is gone... I find very little (and dated) details in the old forums... but I agree that would be a nice project!
I remember to use that NEC V30 40-pin DIP processor to replace and Intel cpu on one primitive PC in the 80's, what a boost in performance it gave!

Yeah, it's probably a bit of a pipe dream, but it sure is tempting to think you'd just have to shim some display I/O and keyboard scan codes. It would be a lovely way to compensate for the lack of programmable scientific calculator in the 200LX. Why HP Calc included all the wonderful features of a 19bii and nothing of a humble 32sii I don't think I'll ever grasp. It's not that difficult to envision a 32sii sim with no 390-byte limit, and the ability to save/load program and equation memory to individual files, like you can with the existing solver and financial modes. Even just a 20s sim (maybe with added RPN mode) would have been a nice touch, but the keyboard would have required a few more secondary labels in any such case.
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Messages In This Thread
CAS on Casio vs HP? - jebem - 05-10-2014, 05:03 PM
RE: CAS on Casio vs HP? - cutterjohn - 05-10-2014, 08:46 PM
RE: CAS on Casio vs HP? - jebem - 05-11-2014, 11:41 AM
RE: CAS on Casio vs HP? - eried - 05-10-2014, 10:04 PM
RE: CAS on Casio vs HP? - jebem - 05-11-2014, 11:54 AM
RE: CAS on Casio vs HP? - Dave Britten - 05-11-2014, 08:45 PM
RE: CAS on Casio vs HP? - Eddie W. Shore - 05-11-2014, 09:23 PM
RE: CAS on Casio vs HP? - HP67 - 05-11-2014, 12:01 PM
RE: CAS on Casio vs HP? - Eddie W. Shore - 05-11-2014, 09:15 PM
RE: CAS on Casio vs HP? - jebem - 05-29-2014, 09:12 PM
RE: CAS on Casio vs HP? - Dave Britten - 05-11-2014, 09:57 PM
RE: CAS on Casio vs HP? - jebem - 05-12-2014, 08:01 AM
RE: CAS on Casio vs HP? - Dave Britten - 05-12-2014 09:21 AM



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