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+--- Thread: Removing the private status of a file (HP-71b) (/thread-155193.html)
Removing the private status of a file (HP-71b) - Klaus - 08-27-2009
I am trying to have a look into the HP-2225B printer driver included in the zenwand. Unfortunately, it is private.
This forum already contains a thread about that, see
this thread.
The HP-2225B printer driver is a basic program that is 953 bytes long. I loaded the JPCROM version F into the HP-71B and managed to peek/poke the file into the main ram. But since it is an exact copy, this new file is also marked private.
I would like to remove this protection with the UNPRIVLX mentioned earlier, but I can't find it. The holyjoe page also says it is included in "OLDISLEX", but I can't find that either.
Can anyone please give me a hint how to remove the private status?
I want to look into the printer driver to see if it will be possible to use other printer with the barcode-printing code included in the zenwand.
Kind regards, Klaus
Re: Removing the private status of a file (HP-71b) - Marcus von Cube, Germany - 08-27-2009
Klaus, have you tried to copy the program to a LIF image via HP-IL and EMU71 and modify it there? Cf. my Math RAM Article.
Re: Removing the private status of a file (HP-71b) - Klaus - 08-27-2009
Hello Markus,
the JPCROM contains a hex-editor to modify files, so I could do it on the physical HP-71B. I will try to change the byte 03 at (relative) address 000E to 00, and report the result.
Vielen Dank and kind regards, Klaus
Re: Removing the private status of a file (HP-71b) - Klaus - 08-28-2009
I did not succeed in removing the private status. I think this is because the SYSEDIT-command uses nibble addresses and now byte addresses. I tried different locations, but each time it failed. Where did you get the file-header information from? Is it the software IDS?
I will see if I can transfer the file to emu71 this weekend.
Kind regards, Klaus
Edited: 28 Aug 2009, 3:02 a.m.
Re: Removing the private status of a file (HP-71b) - Marcus von Cube, Germany - 08-28-2009
Yes Klaus, it's somewhere in the IDS.