Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!samsung!noose.ecn.purdue.edu!en.ecn.purdue.edu!doctorj
From: doctorj@en.ecn.purdue.edu (Jeffrey W Davis)
Newsgroups: comp.sys.amiga.programmer
Subject: Correct code for turning off 020/030 caches?
Message-ID: <1991Jun5.033401.27422@en.ecn.purdue.edu>
Date: 5 Jun 91 03:34:01 GMT
Distribution: usa
Organization: Purdue University Engineering Computer Network
Lines: 22

I need to know the best way to turn off the instruction cache (or all
caches) on a 68020 or 30 system.  It needs to work under both 1.x and 2.x
versions of Kickstart.

Please give a segment of code in assembly to do this.  I do not have
all of my manuals at the moment to locate the 'legal' system calls.  This
code will be in a romtag routine.

Also, I am checking for the LEFT mouse button being pressed with

   btst.b  #6,$bfe001

Again, since I don't have my books, what is a similar check for the RIGHT
mouse button?

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* Jeff Davis                * Relax! And get into    ///  *
* doctorj@en.ecn.purdue.edu * the STRESS!!!         ///   *
*                           *                   \\\///030 *
*                           * -Gigahertz!-  Amiga\XX/ 882 *
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