|Re: Note for NoV-64 users.|
Message #5 Posted by Diego Diaz on 16 Apr 2010, 2:34 a.m.,
in response to message #4 by Eric Smith
You're more than probably right... as the "family" is growing up, its different members' features may lead to confusion.
Here you are an abstract:
It's basically a ROM-box which can hold up to 6 pages (4K each)
Intended to "clone" any ROM PAC module(s).
Same features that Clonix-41 but double ROM size. Its ROM is divided in two blocks of 6 pages each. These blocks can be swapped by plugging the module into an even or odd port.
A RAM-Box, mainly intended to clone "Adv HEPAX". It has 16K RAM and ROM to hold the four pages of the HEPAX module plus two extra ROM pages.
Same as NoVRAM but double RAM size. Its 32K RAM are organized in two blocks of 4 pages each which can be swapped by writting h'000 or h'001 into a control word placed at address H'4100.
Again HEPAX emulation with 4 blocks of 16K ram (thus the "64") and another two blocks of 16K ROM. Switching between the blocks can also be achieved by writing said control word.
Alternatively a new ROM (ICEBOX1H) written by Geir Isene, includes several commands in order to handle the ROM and RAM blocks of a NoV-64, allowing the user to switch between them from a FOCAL program.
NoV-32 is backward compatible with NoVRAM and Clonix-41, as NoVRAM is backwards compatible with Clonix-41.
NoV-64 is compatible with Clonix-D in terms of internal functionality, but it lacks the possibility of swapping its ROM blocks by changing the port. That's why it only shows 6 pages and they must be programmed in both banks.
Hope this clarifies a bit the differences.
Edited: 16 Apr 2010, 2:40 a.m.