Path: utzoo!mnetor!uunet!husc6!bloom-beacon!mit-eddie!uw-beaver!tektronix!reed!kamath
From: kamath@reed.UUCP (Sean Kamath)
Newsgroups: comp.sys.apple
Subject: Re: 60 Hz interrupt mod
Message-ID: <9000@reed.UUCP>
Date: 23 Apr 88 21:42:38 GMT
References: <8804211832.aa02388@SMOKE.BRL.ARPA>
Reply-To: kamath@reed.UUCP (Sean Kamath)
Organization: Reed College, Portland OR
Lines: 24

In article <8804211832.aa02388@SMOKE.BRL.ARPA> PGOETZ@LOYVAX.BITNET writes:
>   This is written for the Apple II and II+.  NOT the IIe, which I have heard
>can generate interrupts itself anyway.  Chips might have different
>numbers/locations in other models, or might not be present.  The old Euro-Apple
>has different counters (because European screens have a different scan rate),
>so this mod won't work on them either.
>
>Phil Goetz
>PGOETZ@LOYVAX.bitnet

The //e cannot do that.  The //c can.  I will be glad to show anyone how,
along with the built in keyboard buffering the //c has.

Don Lancaster in Enhancing you Apple Vol. II has a very nice routine for
locking into the hires refresh start.  Anyone interested, maybe I'll post in
comp.binaries.apple.

Sean Kamath

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