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From: erikmb@cd.chalmers.se (Erik Bryntse)
Newsgroups: comp.sys.handhelds
Subject: GATEWAY-48 codelock program testing
Message-ID: <9012121533.AA06857@cd.chalmers.se>
Date: 12 Dec 90 15:33:10 GMT
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To: handhelds@gac.edu
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GATEWAY-48

I have written a code-lock program for the HP48SX with the
following features:

- Security. There are only two ways to start the calculator when
GATEWAY-48 is enabled. Either you key in the correct 4-digit code,
or you take out the batteries and wait until the calculator memory
is empty!

- Easy to use. Everything you need is contained in one library
which installs itself. A function is provided which uninstalls
GATEWAY-48. The OFF key can easily be redefined.

- Versatility. You can change the code as often as you like. A
personal startup message is possible ie "Belongs to XXYY"

I need help to test this program before I release it! If you are
not afraid of memory lost and would like to help me with this,
please send me a mail. State the version of your HP48SX in the
mail.

Thank You!

Erik Bryntse / SHPRF

erikmb@cd.chalmers.se