https://github.com/torvalds/linux
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Tip revision: c1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201 authored by Linus Torvalds on 05 March 2017, 20:59:56 UTC
Linux 4.11-rc1
Tip revision: c1ae3cf
regs.c
/* -----------------------------------------------------------------------
 *
 *   Copyright 2009 Intel Corporation; author H. Peter Anvin
 *
 *   This file is part of the Linux kernel, and is made available under
 *   the terms of the GNU General Public License version 2 or (at your
 *   option) any later version; incorporated herein by reference.
 *
 * ----------------------------------------------------------------------- */

/*
 * Simple helper function for initializing a register set.
 *
 * Note that this sets EFLAGS_CF in the input register set; this
 * makes it easier to catch functions which do nothing but don't
 * explicitly set CF.
 */

#include "boot.h"
#include "string.h"

void initregs(struct biosregs *reg)
{
	memset(reg, 0, sizeof *reg);
	reg->eflags |= X86_EFLAGS_CF;
	reg->ds = ds();
	reg->es = ds();
	reg->fs = fs();
	reg->gs = gs();
}
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