1*d915a14eSPedro F. Giffuni /*- 2*d915a14eSPedro F. Giffuni * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3*d915a14eSPedro F. Giffuni * 401298368SAndrew Turner * Copyright (C) 2012 Andrew Turner 501298368SAndrew Turner * All rights reserved. 601298368SAndrew Turner * 701298368SAndrew Turner * Redistribution and use in source and binary forms, with or without 801298368SAndrew Turner * modification, are permitted provided that the following conditions 901298368SAndrew Turner * are met: 1001298368SAndrew Turner * 1. Redistributions of source code must retain the above copyright 1101298368SAndrew Turner * notice, this list of conditions and the following disclaimer. 1201298368SAndrew Turner * 2. Redistributions in binary form must reproduce the above copyright 1301298368SAndrew Turner * notice, this list of conditions and the following disclaimer in the 1401298368SAndrew Turner * documentation and/or other materials provided with the distribution. 1501298368SAndrew Turner * 1601298368SAndrew Turner * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1701298368SAndrew Turner * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1801298368SAndrew Turner * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1901298368SAndrew Turner * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2001298368SAndrew Turner * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2101298368SAndrew Turner * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2201298368SAndrew Turner * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2301298368SAndrew Turner * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2401298368SAndrew Turner * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2501298368SAndrew Turner * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2601298368SAndrew Turner * SUCH DAMAGE. 2701298368SAndrew Turner * 2801298368SAndrew Turner */ 2901298368SAndrew Turner 3001298368SAndrew Turner #include <sys/cdefs.h> 3101298368SAndrew Turner __FBSDID("$FreeBSD$"); 3201298368SAndrew Turner 3301298368SAndrew Turner #include "softfloat-for-gcc.h" 3401298368SAndrew Turner #include "milieu.h" 3501298368SAndrew Turner #include "softfloat.h" 3601298368SAndrew Turner 37a06918a3SAndrew Turner #include "aeabi_vfp.h" 38a06918a3SAndrew Turner 39a06918a3SAndrew Turner extern int _libc_arm_fpu_present; 40a06918a3SAndrew Turner 4101298368SAndrew Turner flag __unorddf2(float64, float64); 4201298368SAndrew Turner 43a06918a3SAndrew Turner /* These are written in asm and are only called from this file */ 44a06918a3SAndrew Turner int __aeabi_dcmpeq_vfp(float64, float64); 45a06918a3SAndrew Turner int __aeabi_dcmplt_vfp(float64, float64); 46a06918a3SAndrew Turner int __aeabi_dcmple_vfp(float64, float64); 47a06918a3SAndrew Turner int __aeabi_dcmpgt_vfp(float64, float64); 48a06918a3SAndrew Turner int __aeabi_dcmpge_vfp(float64, float64); 49a06918a3SAndrew Turner int __aeabi_dcmpun_vfp(float64, float64); 50a06918a3SAndrew Turner int __aeabi_d2iz_vfp(float64); 51a06918a3SAndrew Turner float32 __aeabi_d2f_vfp(float64); 52a06918a3SAndrew Turner float64 __aeabi_i2d_vfp(int); 53a06918a3SAndrew Turner float64 __aeabi_dadd_vfp(float64, float64); 54a06918a3SAndrew Turner float64 __aeabi_ddiv_vfp(float64, float64); 55a06918a3SAndrew Turner float64 __aeabi_dmul_vfp(float64, float64); 56a06918a3SAndrew Turner float64 __aeabi_dsub_vfp(float64, float64); 5701298368SAndrew Turner 58a06918a3SAndrew Turner /* 59a06918a3SAndrew Turner * Depending on the target these will: 60a06918a3SAndrew Turner * On armv6 with a vfp call the above function, or 61aac3f7c7SAndrew Turner * Call the softfloat function in the 3rd argument. 62a06918a3SAndrew Turner */ 63a06918a3SAndrew Turner int AEABI_FUNC2(dcmpeq, float64, float64_eq) 64a06918a3SAndrew Turner int AEABI_FUNC2(dcmplt, float64, float64_lt) 65a06918a3SAndrew Turner int AEABI_FUNC2(dcmple, float64, float64_le) 66a06918a3SAndrew Turner int AEABI_FUNC2_REV(dcmpge, float64, float64_le) 67a06918a3SAndrew Turner int AEABI_FUNC2_REV(dcmpgt, float64, float64_lt) 68a06918a3SAndrew Turner int AEABI_FUNC2(dcmpun, float64, __unorddf2) 6901298368SAndrew Turner 70a06918a3SAndrew Turner int AEABI_FUNC(d2iz, float64, float64_to_int32_round_to_zero) 71a06918a3SAndrew Turner float32 AEABI_FUNC(d2f, float64, float64_to_float32) 72a06918a3SAndrew Turner float64 AEABI_FUNC(i2d, int, int32_to_float64) 7301298368SAndrew Turner 74a06918a3SAndrew Turner float64 AEABI_FUNC2(dadd, float64, float64_add) 75a06918a3SAndrew Turner float64 AEABI_FUNC2(ddiv, float64, float64_div) 76a06918a3SAndrew Turner float64 AEABI_FUNC2(dmul, float64, float64_mul) 77a06918a3SAndrew Turner float64 AEABI_FUNC2(dsub, float64, float64_sub) 7801298368SAndrew Turner 79cb8bcafaSAndrew Turner int 80cb8bcafaSAndrew Turner __aeabi_cdcmpeq_helper(float64 a, float64 b) 81cb8bcafaSAndrew Turner { 82cb8bcafaSAndrew Turner int quiet = 0; 83cb8bcafaSAndrew Turner 84cb8bcafaSAndrew Turner /* Check if a is a NaN */ 85cb8bcafaSAndrew Turner if ((a << 1) > 0xffe0000000000000ull) { 86cb8bcafaSAndrew Turner /* If it's a signalling NaN we will always signal */ 87cb8bcafaSAndrew Turner if ((a & 0x0008000000000000ull) == 0) 88cb8bcafaSAndrew Turner return (0); 89cb8bcafaSAndrew Turner 90cb8bcafaSAndrew Turner quiet = 1; 91cb8bcafaSAndrew Turner } 92cb8bcafaSAndrew Turner 93cb8bcafaSAndrew Turner /* Check if b is a NaN */ 94cb8bcafaSAndrew Turner if ((b << 1) > 0xffe0000000000000ull) { 95cb8bcafaSAndrew Turner /* If it's a signalling NaN we will always signal */ 96cb8bcafaSAndrew Turner if ((b & 0x0008000000000000ull) == 0) 97cb8bcafaSAndrew Turner return (0); 98cb8bcafaSAndrew Turner 99cb8bcafaSAndrew Turner quiet = 1; 100cb8bcafaSAndrew Turner } 101cb8bcafaSAndrew Turner 102cb8bcafaSAndrew Turner return (quiet); 103cb8bcafaSAndrew Turner } 104