Memory manipulation while processor is running!!!

The memory can now be safely written to WHILE THE CPU IS RUNNING INSTRUCTIONS AT THE SAME ADDRESS! After adding a pull-up to the RWB pin (low means write so I’d have to assert the clock low before turning off the CPU) the SRAM and EEPROM can be written to/read from arbitrarily while the CPU is paused and all registers are preserved. Spot a bug while stepping through your code? Change the byte immediately before the CPU even sees it.