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+--- Thread: HP-42 ROM entry points ? (/thread-9704.html)
HP-42 ROM entry points ? - Alejandro Paz(Germany) - 12-16-2017 03:18 PM
Hello,
I've been reading the forums and searching around for the HP-42S ROM entry points list. There are references to it... but where is the list ? Does anyone know ?
Thanks in advance !
RE: HP-42 ROM entry points ? - rprosperi - 12-16-2017 05:53 PM
(12-16-2017 03:18 PM)Alejandro Paz(Germany) Wrote: I've been reading the forums and searching around for the HP-42S ROM entry points list. There are references to it... but where is the list ? Does anyone know ?
V1N6 of HPX Exchange (available on Jake's DVD) lists some HP-42S Debugger Addresses; not sure if this is the same thing, but could be what you are referring to.
RE: HP-42 ROM entry points ? - G-SAN - 02-13-2024 02:24 PM
This was a very old question, but so far I have not seen any answer that really gives the answer the PO (or myself) seek.
For the HP48 and HP49 ROMs the list of entrypoints is known.
But I would like to know if there is such a list outside of the few people who actually know the HP42S (like Christoph Giesselink or Eric Rechlin for instance).
Second question: would it be illegal to start compiling an entrypoint list for the HP42S ROM if users study their own dumped ROMs and bring what they glean together in a shared document ?
I read that some entrypoints are common to the Saturn based calculators, and some are unique to a specific calculator. This can be seen in the entryppoint lists of 48/49, where part is common for both and part is unique to 48 or 49.
Any feedback would be most (really!) appreciated.
Gert
HP42S with C rom - HP48G without any changes (yet).