xref: /dragonfly/contrib/openbsd_libm/arch/amd64/s_logb.S (revision a27bb01fb90c87959b0c0dfacf7dd85d1308a35f) 
1/*        $OpenBSD: s_logb.S,v 1.2 2005/08/02 11:17:31 espie Exp $ */
2/*
3 * Written by J.T. Conklin <jtc@NetBSD.org>.
4 * Public domain.
5 */
6
7#include <machine/asm.h>
8
9#include "abi.h"
10
11ENTRY(logb)
12          XMM_ONE_ARG_DOUBLE_PROLOGUE
13          fldl      ARG_DOUBLE_ONE
14          fxtract
15          fstp      %st
16          XMM_DOUBLE_EPILOGUE
17          ret
18END(logb)
19
20          .section .note.GNU-stack,"",%progbits
21