1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (C) 2012 Andrew Turner 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include "softfloat-for-gcc.h" 34 #include "milieu.h" 35 #include "softfloat.h" 36 37 #include "aeabi_vfp.h" 38 39 extern int _libc_arm_fpu_present; 40 41 flag __unorddf2(float64, float64); 42 43 /* These are written in asm and are only called from this file */ 44 int __aeabi_dcmpeq_vfp(float64, float64); 45 int __aeabi_dcmplt_vfp(float64, float64); 46 int __aeabi_dcmple_vfp(float64, float64); 47 int __aeabi_dcmpgt_vfp(float64, float64); 48 int __aeabi_dcmpge_vfp(float64, float64); 49 int __aeabi_dcmpun_vfp(float64, float64); 50 int __aeabi_d2iz_vfp(float64); 51 float32 __aeabi_d2f_vfp(float64); 52 float64 __aeabi_i2d_vfp(int); 53 float64 __aeabi_dadd_vfp(float64, float64); 54 float64 __aeabi_ddiv_vfp(float64, float64); 55 float64 __aeabi_dmul_vfp(float64, float64); 56 float64 __aeabi_dsub_vfp(float64, float64); 57 58 /* 59 * Depending on the target these will: 60 * On armv6 with a vfp call the above function, or 61 * Call the softfloat function in the 3rd argument. 62 */ 63 int AEABI_FUNC2(dcmpeq, float64, float64_eq) 64 int AEABI_FUNC2(dcmplt, float64, float64_lt) 65 int AEABI_FUNC2(dcmple, float64, float64_le) 66 int AEABI_FUNC2_REV(dcmpge, float64, float64_le) 67 int AEABI_FUNC2_REV(dcmpgt, float64, float64_lt) 68 int AEABI_FUNC2(dcmpun, float64, __unorddf2) 69 70 int AEABI_FUNC(d2iz, float64, float64_to_int32_round_to_zero) 71 float32 AEABI_FUNC(d2f, float64, float64_to_float32) 72 float64 AEABI_FUNC(i2d, int, int32_to_float64) 73 74 float64 AEABI_FUNC2(dadd, float64, float64_add) 75 float64 AEABI_FUNC2(ddiv, float64, float64_div) 76 float64 AEABI_FUNC2(dmul, float64, float64_mul) 77 float64 AEABI_FUNC2(dsub, float64, float64_sub) 78 79 int 80 __aeabi_cdcmpeq_helper(float64 a, float64 b) 81 { 82 int quiet = 0; 83 84 /* Check if a is a NaN */ 85 if ((a << 1) > 0xffe0000000000000ull) { 86 /* If it's a signalling NaN we will always signal */ 87 if ((a & 0x0008000000000000ull) == 0) 88 return (0); 89 90 quiet = 1; 91 } 92 93 /* Check if b is a NaN */ 94 if ((b << 1) > 0xffe0000000000000ull) { 95 /* If it's a signalling NaN we will always signal */ 96 if ((b & 0x0008000000000000ull) == 0) 97 return (0); 98 99 quiet = 1; 100 } 101 102 return (quiet); 103 } 104