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Date: Sat, 7 Nov 2015 23:50:45 -0500
From: Rich Felker <>
Subject: Re: sys/io.h lacks inb_p and outb_p on x86

On Sun, Nov 08, 2015 at 11:26:55AM +0700, Рысь wrote:
> x86 arch lacks inb_p and outb_p inline functions. This is required for
> memtest86+.
> I don't know how properly make an assembly here, so when making memtest
> I copied sys/io.h into local directory, and copied these functions from
> uClibc.
> I attach modified header for reference (they should go into bits/io.h).

Any idea what these are intended to do? Are they documented anywhere?


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