HP-71 Compu-LS module

[rprosperi]

(03-20-2017 04:28 PM)twa14 Wrote:  I have the text file (see attachment) thanks Bob, now I"ll follow Dave's instructions.

And now, we have the ROM image too, thanks for that.

It converts OK, but it does fail the checksum verified by TITANCHK, however that could be due to the EPROM vendor not setting the checksum properly, which was quite common.

Easiest way to check the ROM image is to load it in EMU71 (either /DOS or /Win versions, both read the same ROM images).

Update: It loads just fine as a ROM using EMU71/DOS, I can CAT the 2 files. You will need to load it into an IRAM in order to be able to remove the protection, as emulated ROMs are also read-only.

Good luck