[net.micro.apple] Help, what is a print port address likely to be?

addw@root44.UUCP (Alain Williams) (02/14/85)

I am posting this for a friend.

He has an Apple II e, or Apple II +. He wishes to connect a printer to it
but does not know the printer port address. Please can you help.

(The people who sold him the Apple aren't interested as he bought the
printer elsewhere.)

Thank you in advance for your help

	Alain Williams,
	Root Computers Ltd, London, England.
	<UK-net>!{hirst1|qmc-sc|edai|kcl-cs|ukc|glasgow|ist}!root44!addw
	{rlvd|flame|unisoft|deccra|pmllab}!root44!addw
	root44!{rootcl|rootis}!addw

hsu@cvl.UUCP (Dave Hsu) (02/19/85)

> 
> He has an Apple II e, or Apple II +. He wishes to connect a printer to it
> but does not know the printer port address. Please can you help.
> 

Egads...it is necessary to specify which interface is being used.  i.e.
is he using a generic parallel card? a multifunction card? maybe a serial
card?

For the most part, you don't mess with the hardware ports unless you plan
to write a custom device driver, which in this case doesn't sound likely.
Stick to issuing PR#n where n is the slot number; this way is much simpler.

Assuming he hasn't got the tech manual, the port addresses are found at
hex address C0x0 through C0xF where x = 8 + slot number.  For example,
a printer card in slot 1 (or phantomed there) uses C090 through C09F.

Good luck,

=Dave Hsu=   "...very dangerous. You go first."  (301) 454-4526
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