Path: utzoo!mnetor!uunet!mcvax!ukc!eagle!jg
From: jg@eagle.ukc.ac.uk (J.Grant)
Newsgroups: comp.sys.mac
Subject: How does the Mac generate its sound ?
Message-ID: <4867@eagle.ukc.ac.uk>
Date: 28 Apr 88 11:10:55 GMT
Reply-To: jg@ukc.ac.uk (J.Grant)
Organization: UNIKENT Plc.
Lines: 11

What I need to know, is how the mac does it - ie not what lovely
rom calls there are, but what the hardware needs & does - ie
is there a lovely sound chip that does dma on a pcm map, does
the processor have to stuff it byte by byte, polled - interrupt -
in short *how* does it work - when I know this I can tack one on
to a lisa (now you see why) - I am quite prepared to write the
patch for the os to use it and not the internal system but I have
to know that it is feasible first ! Then I can dive into
IM and produce the new calls ...

HELP Please !!!