chambersdj@EA.USL.EDU (07/14/90)
I remember a long time ago someone posted the syseval for the hp28s off
function and said that it could be used to implement a kind of password
protection on that machine. I tried it on my hp48 but there is one problem
if the user hits ON (attn) fast enough it breaks the program because
the IFERR trap statement doesn't get executed:
<< IFERR ...stuff to input and check a password...
THEN IF ERRN 0 == THEN DROP2 GETPASS @ recursive call...
END
>>
stored in 'GETPASS'
IS there a way to disable or trap the ATTN function?? mabe with
machine code?
-Darrin Chambers ChambersDJ@usl.ea.edu