Alternative HP-41CL mainframe (OS ROMs) update for beta test

[hth]

(10-01-2019 11:07 AM)Sylvain Cote Wrote:  I have done the following procedure, but to my surprise it is not working.
I have to leave for work and I will check what I have missed or done wrong tonight.

With some help from Monte, I came up with the following.

First load them to a sequence of RAM pages:

820 NUT0
821 NUT1
822 NUT2
823 XFUNS3
824 TIME
825 XFUNS5

(I use HP-IL, so the commands I use to load are different compared to the serial port.)

Then "%820 0" PPLUG and "*824 5" PPLUG sets up the mapping and finally MAPEN to enable it.

Note the '%' and '*' characters.

MAPEN is needed every time you turn the 41CL on (the actual configuration seems to stay).

I found it a bit tedious with MAPEN after a while, so I flashed it using the excellent Update module. I always feared flashing in the past, but the Update module makes it very simple. However, be very confident that you know what you are doing and test the new images a bit before you even consider flashing it.