Date   : Sun, 15 Apr 2001 17:22:49 +0100
From   : "Richard Gellman" <r.gellman@...>
Subject: Confusing tube

This list has been quiet lately aint it?

anyways...
I'm confused about the loading of the Tube OS ROM in the 6502 2nd processor.
I have two roms download from TBL, one 2K and one 4K.

According the 6502-2nd processor user guide, the tube OS occupies F800-FFFF,
next to this it says "ROM copied to RAM".
the 2K image would fit in from F800.

It also says the following:

On switch-on the tube software is copied from the DNFS ROM in the I/O
processor to the 4,5,6 and 7 [sic] in the I/O processor.
The second processor operating system is copied from a ROM inside the Second
Processor to &F800-&FFFF.

Now would somebody care to clear this up a bit? :)

-- Richard Gellman