HP 35s Checksum explained

[Tugdual]

(02-09-2015 01:01 PM)Didier Lachieze Wrote:  I've tested the small program listed in this thread from 2007: 35s checksum problem

On my real 35s (ROM version 1 - CNA743xxxxx) I have:
LBL G, LN= 9, CK= 535D
LBL C, LN= 9, CK= 532C

On the 35s emulator (Version 2012 12 10 Rev:19048) I have:
LBL G, LN= 9, CK= B556
LBL C, LN= 9, CK= 7C6B

Both real and emulated 35s had already some (different) programs inside before the test. On both I first did GTO .. before entering the program.

This is pretty interesting.
I have :
G 8A28
C D6F8
on both the simulator and the calculator. I see on the other thread that many other users achieved the same result which seems to indicate some consistency.

I have the exact same version of simulator and my 35s is a CNAxxx version. It would be interesting to start from a common state to understand what's going on.
Can you try to delete AutoSave.ep from %AppData%\Hewlett-Packard\hp35s and then run the test again?
For the hardware version, could be a good idea to remove both batteries to force a complete reset.