HP-50gII Discussion (split from 15c CE thread)

[John Keith]

(08-30-2023 03:44 PM)Gilles Wrote:  But what would be the idea? Run the standard hp50G ROM by modernizing the emulation layer on a modernized hardware? It will be great to have an HP50g "compatibility" mode (sys RPL, emulation ...) , but also to be able to install another OS. I also really like the integration of the SD CARD on the HP50. In newRPL it's impressive and practical for making backups, restoring.

That was my idea, something like EMU48 running an original 50g ROM, alongside NewRPL. The original 50g memory footprint is only 2 MB which is a rounding error on modern hardware. Ideally we would want some method of transferring data between the two, preferably stack-to-stack. This would require some translation due to the different variable-precision format used by NewRPL.

I would suggest a Micro SD card since the connector is much smaller and more compatible with a slim, modern handheld device.