41CL use of EXCFG, RCLCFG and STOCFG

[Monte Dalrymple]

(10-14-2018 08:44 AM)Podalirius Wrote:  Hi, My very best thank you for your very valuable help!!!
But Mr. Angel Martin has made me very curious:
I know that these functions operates on a four set of MMU
registers, one primary, and three secondary.
How I can create a fifth?
I have now my new Sy41CL and is a true masterpiece,
but also very useless without your help, because the
manuals are generally too technical, for me (I am a programmer
but I don't know Assembler) !!!
More and more, thank you so much!!!

The MMU hardware only knows about configuration 0. The other configurations are
just extra storage locations at dedicated locations in RAM. I reserved four locations
per MMU register in the very beginning, and those locations are what are used by
the EXCFG, RCLCFG and STOCFG functions. So, with those functions only four
configurations are possible.

However, since the alternate configurations are software constructs, it would be
possible to write new EXCFG, RCLCFG and STOCFG functions that handled any
number of alternate configurations, as long as you standardized the storage
locations for the additional information. There isn't space available directly next
to the existing MMU registers, but there is plenty of space in the bottom page
of RAM, where all of this information resides. Is this something that other users
would find attractive? I could find time to do this if there is interest. It would be
an interesting project.

Monte