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From: rmh@apple.com (Rick Holzgrafe)
Newsgroups: comp.sys.mac.system
Subject: Re: Some System 7 questions...
Message-ID: <13809@goofy.Apple.COM>
Date: 31 May 91 21:37:44 GMT
References: <1991May31.151901.10137@Think.COM>
Sender: usenet@Apple.COM
Organization: Apple Computer, Inc.
Lines: 22

In article <1991May31.151901.10137@Think.COM> ejb@think (Erik Bailey) 
writes:
> 2) The same question for 32-bit addressing... Assuming an application
>    supports it and doesn't crash, is 32-bit slower/faster/the-same-as
>    24-bit?  Is there any reason to use 32-bit addressing with the small
>    amount of memory I have?

I don't think there's any significant speed difference. (If there's any 
difference at all, I'd bet the 32-bit mode is a noodge slower: some memory 
manager data has been moved elsewhere in 32-bit mode and may take an extra 
instruction or so to access. I use both modes on a IIfx and notice no 
difference at all.)

There's no reason I know of to use 32-bit mode unless you need more than 8 
Meg of memory (real or virtual.)

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Rick Holzgrafe              |    {sun,voder,nsc,mtxinu,dual}!apple!rmh
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