Re: IWM Does Not Exist?

["Bill Garber" <willy46pa@comcast.net>]

"Exegete" <millers@noneofyourbusiness.com> wrote in message
news:3f99386d$1_5@corp.newsgroups.com...
>
> Bryan Parkoff wrote:
>
> >     I claim that IWM should not exist in an earliest Apple II model in
order
> > to support GCR format for Disk II Family.
>
> Ummm, aside from your strange word order, have you ever even looked at
> the Disk II and the interface card? Because you won't find an Integrated
> Woz Machine chip. That chip IS the interface card.

Also according to this:

> >     I suspect that $C080-C08F is used for slot 0 only which switch banks
of
> > 64KB, but it is still useable for slot 1-7 such as LDA $C080,X.

Bryan doesn't maybe realize that if you:

LDX #$60
LDA $C080,X   ; actual address being loaded is $C0E0

Then he may have realized that Woz could have made the
Disk II boot from any slot. In fact it can, as long as there
is no other bootable drive in a higher slot. On my IIgs, I have
my Apple 5.25 drives on a 5.25 ( same as the Disk II except
for the connectors) controller in slot 7, but set to boot from
slot 5, so that to boot from a floppy I need to reset boot slot,
or load BASIC and do PR#x ( slot 6 or 7 ).

Bill @ GarberStreet Enterprizez };-)
Web Site - http://garberstreet.netfirms.com
Email - willy4SPAM6pa@comXcast.net
Remove - SPAM and X to contact me



---
This email ain't infected, dude!

Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.530 / Virus Database: 325 - Release Date: 10/22/03