/* * Written by J.T. Conklin <jtc@netbsd.org>. * Public domain. */ #include <machine/asm.h> #include "abi.h" RCSID("$NetBSD: s_tan.S,v 1.6 2001/06/19 00:26:31 fvdl Exp $") ENTRY(tan) XMM_ONE_ARG_DOUBLE_PROLOGUE fldl ARG_DOUBLE_ONE fptan fnstsw %ax andw $0x400,%ax jnz 1f fstp %st(0) XMM_DOUBLE_EPILOGUE ret 1: fldpi fadd %st(0) fxch %st(1) 2: fprem1 fstsw %ax andw $0x400,%ax jnz 2b fstp %st(1) fptan fstp %st(0) XMM_DOUBLE_EPILOGUE ret