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Creating ROM image files of an HP-41 module

Posted by Juergen Keller on 9 Aug 2011, 4:55 p.m.

This is the procedure I use to dump a HP-41 module to .rom files (which then can be used, e.g, to burn a Clonix). Note that there are many other ways to do it ...

1. Requirements
   • HP-41 with capability to save a 4k page to a mass storage device, e.g.:
     • HP-41CL with CCD/OSX (SAVEROM)
     • HP-41CY (WRTPG)
     • HP-41 with CCD OS/X provided by a Clonix module
     • HP-41 with HEPAX (WRTROM) provided by a NoVRAM etc.
     • etc.
   • HP 82160A HP-IL interface
   • Windows PC (drivers required by PIL-Box need to be installed)
   • PIL-Box device
   • ILPer program
   • HPDir program
   • lif2rom program
2. Preparations
   1. Insert the module to dump (and any other modules needed by your setup, e.g. Clonix) into the HP-41.
   2. Connect the PIL-Box to the PC, and the HP-41 to the PIL-Box.
3. Dump all pages of the module to a LIF file
   1. Run ILPer (select mass storage LIF file, appropriate port and baud rate) and start the PIL-Box interface.
   2. Turn on the HP-41.
   3. Enter a file name for the page into the ALPHA register.
   4. Enter the page number (8-15) into the X register.
   5. Execute the SAVEROM function (or WRTPG, WRTROM, ...).
   6. Repeat steps 3 to 5 for all pages of the module.
   7. Stop the PIL-Box and quit ILPer.
4. Extract all pages of the module from the LIF file and convert them to ROM files
   1. Open a command prompt.
   2. Run Hpdir -extract <file> <page>, where <file> is the name of the LIF file (as specified in step 3.1) and <page> is the name of the page (as entered in step 3.3).
   3. Run lif2rom <page>.#e070 <name>.rom.
   4. Repeat steps 2 to 3 for all pages of the module.

Any comments are welcome.

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