Re: 49G+ CAS oddities, help!

On Fri, 17 Feb 2006 17:29:32 -0600, smthmlk wrote:

an open-source CAS would be a great project to start :)

You may get the source: casrelease.zip
(as of 2004.03.11, which is not current,
with recent minor fix for the final "CreateRom" program)

http://www-fourier.ujf-grenoble.fr/~parisse/english.html
ftp://ftp-fourier.ujf-grenoble.fr/xcas/hpcas/casrelease.zip
-or-
http://www.hpcalc.org/details.php?id=5997
http://www.hpcalc.org/hp49/math/symbolic/casrelease.zip

| Description:
| Contains the source code for the CAS in the HP 49G calculator.
| With this package, you should be able to modify the source
| and recompile the ROM of the 49G.

Note:

You can recompile only the CAS parts of the ROM;
other parts are in object form, ready for linking.

| Most of the CAS is under the LGPL, but some parts are not,
| so not all of the CAS is modifiable [see additional warning]

No means is provided for combining any update of your own
with the other parts of a more current ROM, however
(it outputs a "vger.flash" file for 49G, version 1.24,
plus a "rom.e49" file for Emu48,
but the "rom.bin" output may not be flashable to a 49G+[?],
even though the other ROM parts are compatible with 49G+)

It also looks to me as if the included "SupRomEntry" file
contains non-fixed entries; if so, and if these
are referenced by the CAS, then the entire package
might need to be regenerated to match later ROM versions.

[r->] [OFF]
.

Relevant Pages

  • All (all!) the symbols of the HP49s ROM
    ... the source code is available because the CAS is a free software ... the CAS also contains the object files of the other part of the ROM. ... the entries file with all the symbol of the 49's ROM: ...
    (comp.sys.hp48)
  • Re: All (all!) the symbols of the HP49s ROM
    ... and perhaps the object code of 1.24 ... The only interesting thing is about decompiling the ROM. ... you *must* provide the source code. ... However, HP may have corrected bugs from another version of the CAS, ...
    (comp.sys.hp48)
  • Re: All (all!) the symbols of the HP49s ROM
    ... the source code of the CAS also contains the object files ... but there is also all the symbols of the ROM, ... If the CAS uses many of these non-stable entries, ...
    (comp.sys.hp48)
  • Re: GPL vs LGPL vs CAS
    ... >> perspective of CAS would not add much to the discussion. ... > to have access to the source code of a CAS. ... year writing a faster version of an algorithm, ... If Wolfram gave away Mathematica, ...
    (sci.math.symbolic)
  • Re: new ROM? (was: In 50g, how to compute Fourier transform??)
    ... I'm wondering if BP's rom includes all the ... Both the spreadsheet and geometry app reside within the CAS section, ...
    (comp.sys.hp48)
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