Updated 41Z : Deluxe Edition available

[Diego Diaz]

Some of you may remember this from Oct. 2008.



But the idea didn't work as expected, and for now i'll just include an 18 ROM pages module, and a more flexible RAM handling. May be 64K RAM is too much for most users out there and 32k or even original (Adv. HEPAX) 16k in two blocks of 8 is more handy.

HP-41 in a reasonably powerful configuration, will have a free port (say #4) to plug peripherals (HP-IL, Card reader, WAND, printer, etc.) and RAM memory (8-16k at least).

Also, except from HEPAX and Ángel's ROMs, the remaining ROMs are 4/8k. With this scenario, user can have HEPAX, 41Z & LIBRARY#4, taking 13 (4k) pages and using addresses h'4000, h'6000, h'C000 & h'D000. Still 5 ROM pages available that can be used for other ROM images.

In the case you don't want/need HEPAX all 18 pages are available to be arranged either in two blocks or as single block.

I'd appreciate comments in case some foresee this ROM size isn't enough to handle any specific configuration; since I'm sure there are points that I haven't got yet.

Look forward to reading your input.

Best wishes.

Diego.