/* $OpenBSD: s_cos.S,v 1.2 2005/08/02 11:17:31 espie Exp $ */ /* * Written by J.T. Conklin . * Public domain. */ #include #include "abi.h" ENTRY(cos) XMM_ONE_ARG_DOUBLE_PROLOGUE fldl ARG_DOUBLE_ONE fcos fnstsw %ax andw $0x400,%ax jnz 1f XMM_DOUBLE_EPILOGUE ret 1: fldpi fadd %st(0) fxch %st(1) 2: fprem1 fnstsw %ax andw $0x400,%ax jnz 2b fstp %st(1) fcos XMM_DOUBLE_EPILOGUE ret