Path: utzoo!attcan!uunet!cbmvax!bpa!rutgers!tut.cis.ohio-state.edu!bloom-beacon!apple!oliveb!amiga!boing!dale
From: dale@boing.UUCP (Dale Luck)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Just wondering if....
Keywords: Cache, DMA
Message-ID: <678@boing.UUCP>
Date: 20 Mar 89 01:18:31 GMT
References: <10527@mcdphx.phx.mcd.mot.com>
Reply-To: dale@boing.UUCP (Dale Luck)
Distribution: na
Organization: Boing, Milpitas, Ca.
Lines: 13

In article <10527@mcdphx.phx.mcd.mot.com> dbk@teroach.UUCP (Dave Kinzer) writes:
>   Does anybody actually bother to flush the cache after DMA occurs?
>You know, like after the 2090 or Hardframe loads your program or data,
>or after the blitter moves something, or when the serial port or trackdisk

Something that may be a good idea to put into the tail end of
WaitBlit() just before returning to the caller. I think the
flush cache instruction may be priveleged though. This really
is mainly for data cache on the 68030 when using the blitter.

-- 
Dale Luck     GfxBase/Boing, Inc.
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