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HP41 rom versions
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08-12-2020, 04:02 PM
Post: #3
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RE: HP41 rom versions
GFF is a quite common version that is very similar to HFF, only two minor changes were made in HFF.
HFF allows back-arrow-ON to break an infinite loop at power on with a zero length buffer and there is a minor correction to ROM function lookup with duplicate XROM that is unlikely to occur in normal use. Tall key calculators do not have GFF from factory. It is possible to check the version without a service module. There was a sequence published long ago in some PPC journal that (probably) relies on some synthetic programming. |
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| Messages In This Thread |
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HP41 rom versions - Erik-M - 08-12-2020, 08:40 AM
RE: HP41 rom versions - AndiGer - 08-12-2020, 02:51 PM
RE: HP41 rom versions - hth - 08-12-2020 04:02 PM
RE: HP41 rom versions - Didier Lachieze - 08-12-2020, 06:35 PM
RE: HP41 rom versions - Erik-M - 08-13-2020, 07:05 AM
RE: HP41 rom versions - hth - 08-13-2020, 05:52 PM
RE: HP41 rom versions - Erik-M - 08-13-2020, 06:38 PM
RE: HP41 rom versions - CY-CL - 08-14-2020, 10:12 AM
RE: HP41 rom versions - Erik-M - 08-14-2020, 04:56 PM
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