Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!think.com!snorkelwacker.mit.edu!mit-eddie!uw-beaver!ubc-cs!fs1!fs1.ee.ubc.ca!jmorriso
From: jmorriso@fs1.ee.ubc.ca (John Paul Morrison)
Newsgroups: comp.sys.handhelds
Subject: Re: HP48 Internals, etc
Message-ID: <1510@fs1.ee.ubc.ca>
Date: 4 Feb 91 19:48:14 GMT
References: <38752@cup.portal.com>
Sender: root@fs1.ee.ubc.ca
Reply-To: jmorriso@fs1.ee.ubc.ca (John Paul Morrison)
Organization: Dept. of Electrical Engineering University of B.C.
Lines: 11

I disagree. There is absolutely no reason to have ROM dumps of all the
versions, nor any reason to write software that is downward compatible
with the A, B, and C ROMS. HP has a generous upgrade policy for those
versions, so only a few die-hards should be left with the old ones.

All that is needed is good programming style. Keep in mind that CHIP has 
been reasonably well behaved, and has been upward compatible (so far).
It is non-obvious that this should be the case for a low-level program.
I think a well written program will remain compatible to all versions.

Besides, I have an E versoin ROM anyways!