I am trying to understand how the hp-41c transfers execution control if it sees a diagnostic module installed at page 4.
Is the Instruction Addressing hardware redirected within the cpu? Or is it just a jump to page 4 and all the instructions within that rom are hardcoded to page4 and above(an absolute code segment)?
I'd appreciate it if any gurus out there still can answer this one since I dont have a copy of the service module. I understand it was for hp internal use only......
Regards