LoadWB wrote:
Second, optional Flash Memory?! Could this be used to hold a working Kickstart image?
In theory, kind of maybe..
The /Flash chip select is only available on the expansion connector or Gayle, IIRC it was really meant for a 'diagnostic ROM'(ie developer/repair use).
You still need the normal Kickstarts installed, since they contain the code to check for and use the code in the flash.
Edit: Oops, forgot to mention, if you're mad enough to try it, you've gotta change the first word of the ROM image from $1114 to $1111 otherwise exec won't recognise it as valid ROM.
Another problem is that the same address space is used by BlizzardPPC/Cyberstorm boards for their ROMs.
It does have a header on P9B, and just solder points for P9A, which are labeled in the schematics as "memory expansion."
..
Also, where does this expanded memory get mapped?
It's not much use, it was meant as an extra 1MB of Chip RAM.
The A1200 was planned to ship with 1MB of Chip, and those headers were for an upgrade to bring it upto 2MB.
