1/* $OpenBSD: s_atan.S,v 1.4 2018/07/03 22:43:34 mortimer 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(atan) 12 RETGUARD_SETUP(atan, r11) 13 XMM_ONE_ARG_DOUBLE_PROLOGUE 14 fldl ARG_DOUBLE_ONE 15 fld1 16 fpatan 17 XMM_DOUBLE_EPILOGUE 18 RETGUARD_CHECK(atan, r11) 19 ret 20END(atan) 21