HP-71 Compu-LS module

[Dave Frederickson]

Hi Tom,

(03-20-2017 01:14 PM)rprosperi Wrote:  

(03-20-2017 12:39 PM)twa14 Wrote:  Thanks Christoph, almost there. I managed to install POKELEX and run ROMDMP. It ran in ILper for about 35 minutes and seemed to be ok but I can't find the output file? The module is called "COMPU" and when I check the cat it is listed as "COMPU P BASIC 32632" followed by "KEYWAIT LEX 55" . On the basis of this I changed the name on your ROMDMP Basic program from "JPCF05" to "COMPU" and ran the program. No error messages this time, so where could the output file be?

There is no output file, per se. The idea of the program is that it copies the bytes of the ROM to the virtual display in ILPer, where they are captured in the display area. Once the program completes, on the PC you copy all of the lines of the dumped bytes (but only those lines) and paste them into a text editor to save to PC hard disk (e.g. COMPU.ROM), and then you can use the utility mentioned in the procedure Dave gave you to convert it from ASCII characters to the proper binary format, which is then copied into a new (or existing) .lif file, which you mount in ILPer. Then, you can use ROMCOPY to copy that binary file into an IRAM of the same size, something like ROMCOPY COMPU:HDRIVE1 TO :PORT(2).

Note that the binary image of the ROM can be loaded into Emu71/Win using the Port Configuration menu. However, to be able to ROMCOPY the image into an IRAM will require copying the file to a LIF disc image, which is not an obvious task.
Refer to [FRAM71] Pre-Production Batch, Post #2,
http://www.hpmuseum.org/forum/thread-251...l#pid22721
for one technique of doing so.

Speaking of FRAM71, if you find the 71B fun, consider obtaining a FRAM71 module. Some latecomers were still able to purchase a module from the last batch.
http://www.hpmuseum.org/forum/thread-5437.html

Dave