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Subject: Re: IO delay, port 0x80, and BIOS POST codes
To: root@chaos.analogic.com
Date: Thu, 14 Mar 2002 22:56:46 +0000 (GMT)
Cc: hpa@zytor.com (H. Peter Anvin), linux-kernel@vger.kernel.org
In-Reply-To: <Pine.LNX.3.95.1020314165931.715A-100000@chaos.analogic.com> from "Richard B. Johnson" at Mar 14, 2002 05:11:51 PM
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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> Yeh?  Then "how do it know?". It doesn't. I/O instructions are ordered,
> however, that's all. There is no bus-interface state machine that exists

How about because
	o	The intel docs say out is synchronizing
	o	HPA works for an x86 clone manufacturer

Alan
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