Classic, Woodstock and Spice Emulators

[PANAMATIK]

(05-30-2017 02:55 AM)teenix Wrote:  Hi Bernhard

I finally had a fiddle with the code and not sure how reliable it will be, but I have a text microcode file for the 29C with the pause modification in it.

The pause will stop immediately if a key is pressed.

Yes, it works. Brilliant solution by just altering 6 instructions. You were very lucky to find the 5 nops at 5773 to 5777 for this patch. And you adjusted the Pause loop time by loading 5 instead of 6 in the c register.

Congratulations! You removed a HP-29C bug after 40 years! Interestingly the twin calculator HP-19C did not have this bug. I will implement this in my HP-29E and in the HP-29 PC emulator.

Bernhard