Does anyone know where I can find the firmware for the 2 ATMega328 MCU's on the RC6502 Terminal card?

And the underside of wire wrapping nest!

Hi,

I have built one of Grant Searle's 7-chip 6502 computer based on his modified OSI Rom with Load and Save "nulled"

Is there an easy way to implement Load and Save and add the required circuitry to use a tape recorder to save and load code.

If so can anyone help me with the schematic and code ...