Re: //e, //c, //gs Questions

[dempson@actrix.gen.nz (David Empson)]

Rubywand <rubywand@swbell.net> wrote:

> David Empson writes ...
> > 
> 
>  ....
> 
> > 
> > The IIe auxiliary slot (and IIc equivalent) bank-switching cards do
> > switch entire 64K banks over, but this only affects the "auxiliary
> > memory" area, so it interacts with the built-in bank switching
> > mechanisms (16K language card split into 4K and 12K banks
> 
>  ....
> 
>     Shouldn't the above be "two 4k banks and one 8k bank"?

Depends on your point of view.  I prefer to think of them as a single
12K bank (as it is commonly used) with an alternate 4K bank at
D000-DFFF.

(The peculiarity is that it is the nominal "bank 2" that is normally
used in conjunction with E000-FFFF.)

-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand