Roy J. Gromlich wrote :

> Combine that with information
> which placed the "access bank" in the upper half of Page15,...

*and* the lower half of page 0, don't forget ! :-)

> and I made the jump to thinking the RAM space was flat, not
> segmented....

Well, the MOWFF instruction (move one reg to another) takes
two 12 bit addresses directly in the instruction, so it's flat
*sometimes*.  So it depends on how you look at it, right ?

> As I said, I can't understand why they fixed almost all of the
> other addressing oddities and left the Page Register in there.

Perhaps there isn't room for the (extra) bits in the instructions ?
Not without a major re-design anyway such as going to more
double-word instruction (with less speed). A design trade-of, I'm sure...

Jan-Erik.

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