HP-71 Compu-LS module
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03-20-2017, 05:53 PM
Post: #43
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RE: HP-71 Compu-LS module
(03-20-2017 03:09 PM)Dave Frederickson Wrote: 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. Once you will have it in IRAM, here is how to unprotect it: - find the ROM base address from the address of the file with ADDR$("COMPU") - add an offset of 1c(hex), - poke "0" in that location. Or in one step: POKE ADDR$("COMPU")[1,3]&"1C","0" Now, you can EDIT or LIST COMPU :-) J-F |
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