HP-41CY re-initialization ROM

[Jurgen Keller]

It looks like I'm doing a monologue ;-) Anyway I just wanted to report that the trick mentioned in my previous post seems to work fine. The current setup is like that:

• The main procedure is a take-over ROM at page #4.
• At page C there is a helper ROM to do the controlled switch to bank #1 (see second picture above).
• Pages E and F contain the 41CY OS (OS/A and OS/B).
  

What is currently missing it the cleanup after initialization is done which is straightforward.