lib/libm/arch/amd64/s_ilogb.S


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/*	$OpenBSD: s_ilogb.S,v 1.3 2009/04/08 22:30:41 martynas Exp $ */
/*
 * Written by J.T. Conklin <jtc@NetBSD.org>.
 * Public domain.
 */

#include <machine/asm.h>

ENTRY(ilogb)
	movsd	%xmm0,-8(%rsp)
	fldl	-8(%rsp)
	fxtract
	fstp	%st
	fistpl	-8(%rsp)
	movl	-8(%rsp),%eax
	ret