Re: Addressing home-made adapter cards

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

In article <D0Fvvu.J98@cee.hw.ac.uk>,
Edward D Schernau <ceeeds@cee.hw.ac.uk> wrote:
> Give you a break?  Extract your cranium from your rectum....
> 
> PEEK and POKE come FREE (!) with the Apple...

So do LDA and STA (via the monitor and/or mini-assembler), and they are
an awful lot faster.  The point was that if you are designing and
building your own I/O card, you can probably program in assembly
language or machine code, so you would be using machine language
instructions to access the card, not BASIC.

> You obviously havent been following this thread...
> The apple //e DOES have addresses for each slot...

That was Soenke's point.  "Mainstream" computers (i.e. the PC family)
does not have unique addresses for each slot.  Anyone coming to the
Apple II from the PC might make a similar assumption about the Apple
II family.
-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand