Re: Where does the "16 SECTOR" message come from?

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

Michael J. Mahon <mjmahon@aol.com> wrote:

> David Empson wrote:
> > 2KB is the smallest EPROM size that was readily available at the time (a
> > 2708 or equivalent). They are probably only using three pages.
> 
> Actually, the 2708 was a 1K EPROM, but they were never as popular
> as the 2716, so often 2716s were both more readily available at
> the same or lower cost.

Doh! I knew that.

Memo to self: review details and do blindingly obvious calculations
before committing a post.

The 2708 was also a nuisance because it required several voltages for
normal operation (all available on an Apple II slot), but the 2716 was
able to run from +5V only (as long as you got it from the right
manufacturer). It still needed a high voltage for programming, but that
wasn't done in-system.

> > Oh well, I'm sure someone will find a use for my "copy the C8 area" code
> > snippet, and it will be in the archives. :-)
> 
> Thanks, David--now it's in my archives, too.  ;-)

It would be handy if someone can test it and make sure I didn't make any
typos in the machine code translation.
-- 
David Empson
dempson@actrix.gen.nz