vfpsf.S revision 1.1.4.2
1 1.1.4.2 tls /*- 2 1.1.4.2 tls * Copyright (c) 2013 The NetBSD Foundation, Inc. 3 1.1.4.2 tls * All rights reserved. 4 1.1.4.2 tls * 5 1.1.4.2 tls * This code is derived from software contributed to The NetBSD Foundation 6 1.1.4.2 tls * by Matt Thomas of 3am Software Foundry. 7 1.1.4.2 tls * 8 1.1.4.2 tls * Redistribution and use in source and binary forms, with or without 9 1.1.4.2 tls * modification, are permitted provided that the following conditions 10 1.1.4.2 tls * are met: 11 1.1.4.2 tls * 1. Redistributions of source code must retain the above copyright 12 1.1.4.2 tls * notice, this list of conditions and the following disclaimer. 13 1.1.4.2 tls * 2. Redistributions in binary form must reproduce the above copyright 14 1.1.4.2 tls * notice, this list of conditions and the following disclaimer in the 15 1.1.4.2 tls * documentation and/or other materials provided with the distribution. 16 1.1.4.2 tls * 17 1.1.4.2 tls * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 18 1.1.4.2 tls * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 19 1.1.4.2 tls * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 1.1.4.2 tls * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 21 1.1.4.2 tls * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 1.1.4.2 tls * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 1.1.4.2 tls * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 1.1.4.2 tls * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 1.1.4.2 tls * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 1.1.4.2 tls * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 1.1.4.2 tls * POSSIBILITY OF SUCH DAMAGE. 28 1.1.4.2 tls */ 29 1.1.4.2 tls 30 1.1.4.2 tls #include <arm/asm.h> 31 1.1.4.2 tls #include <arm/vfpreg.h> 32 1.1.4.2 tls 33 1.1.4.2 tls RCSID("$NetBSD: vfpsf.S,v 1.1.4.2 2013/02/25 00:27:55 tls Exp $") 34 1.1.4.2 tls 35 1.1.4.2 tls /* 36 1.1.4.2 tls * This file provides softfloat compatible routines which use VFP instructions 37 1.1.4.2 tls * to do the actual work. This should give near hard-float performance while 38 1.1.4.2 tls * being compatible with soft-float code. 39 1.1.4.2 tls * 40 1.1.4.2 tls * This file implements the single precision floating point routines. 41 1.1.4.2 tls */ 42 1.1.4.2 tls 43 1.1.4.2 tls ENTRY(__addsf3) 44 1.1.4.2 tls vmov s0, s1, r0, r1 45 1.1.4.2 tls vadd.f32 s0, s0, s1 46 1.1.4.2 tls vmov r0, s0 47 1.1.4.2 tls RET 48 1.1.4.2 tls END(__addsf3) 49 1.1.4.2 tls 50 1.1.4.2 tls ENTRY(__subsf3) 51 1.1.4.2 tls vmov s0, s1, r0, r1 52 1.1.4.2 tls vsub.f32 s0, s0, s1 53 1.1.4.2 tls vmov r0, s0 54 1.1.4.2 tls RET 55 1.1.4.2 tls END(__subsf3) 56 1.1.4.2 tls 57 1.1.4.2 tls ENTRY(__mulsf3) 58 1.1.4.2 tls vmov s0, s1, r0, r1 59 1.1.4.2 tls vmul.f32 s0, s0, s1 60 1.1.4.2 tls vmov r0, s0 61 1.1.4.2 tls RET 62 1.1.4.2 tls END(__mulsf3) 63 1.1.4.2 tls 64 1.1.4.2 tls ENTRY(__divsf3) 65 1.1.4.2 tls vmov s0, s1, r0, r1 66 1.1.4.2 tls vdiv.f32 s0, s0, s1 67 1.1.4.2 tls vmov r0, s0 68 1.1.4.2 tls RET 69 1.1.4.2 tls END(__divsf3) 70 1.1.4.2 tls 71 1.1.4.2 tls ENTRY(__negsf2) 72 1.1.4.2 tls vmov s0, r0 73 1.1.4.2 tls vneg.f32 s0, s0 74 1.1.4.2 tls vmov r0, s0 75 1.1.4.2 tls RET 76 1.1.4.2 tls END(__negsf2) 77 1.1.4.2 tls 78 1.1.4.2 tls ENTRY(__truncdfsf2) 79 1.1.4.2 tls #ifdef __ARMEL__ 80 1.1.4.2 tls vmov d0, r0, r1 81 1.1.4.2 tls #else 82 1.1.4.2 tls vmov d0, r1, r0 83 1.1.4.2 tls #endif 84 1.1.4.2 tls vcvt.f32.f64 s0, d0 85 1.1.4.2 tls vmov r0, s0 86 1.1.4.2 tls RET 87 1.1.4.2 tls END(__truncdfsf2) 88 1.1.4.2 tls 89 1.1.4.2 tls ENTRY(__fixsfsi) 90 1.1.4.2 tls vmov s0, r0 91 1.1.4.2 tls vcvt.s32.f32 s0, s0 92 1.1.4.2 tls vmov r0, s0 93 1.1.4.2 tls RET 94 1.1.4.2 tls END(__fixsfsi) 95 1.1.4.2 tls 96 1.1.4.2 tls ENTRY(__fixunssfsi) 97 1.1.4.2 tls vmov s0, r0 98 1.1.4.2 tls vcvt.u32.f32 s0, s0 99 1.1.4.2 tls vmov r0, s0 100 1.1.4.2 tls RET 101 1.1.4.2 tls END(__fixunssfsi) 102 1.1.4.2 tls 103 1.1.4.2 tls ENTRY(__floatsisf) 104 1.1.4.2 tls vmov s0, r0 105 1.1.4.2 tls vcvt.f32.s32 s0, s0 106 1.1.4.2 tls vmov r0, s0 107 1.1.4.2 tls RET 108 1.1.4.2 tls END(__floatsisf) 109 1.1.4.2 tls 110 1.1.4.2 tls ENTRY(__floatunsisf) 111 1.1.4.2 tls vmov s0, r0 112 1.1.4.2 tls vcvt.f32.u32 s0, s0 113 1.1.4.2 tls vmov r0, s0 114 1.1.4.2 tls RET 115 1.1.4.2 tls END(__floatunsisf) 116 1.1.4.2 tls 117 1.1.4.2 tls /* N set if compare <= result */ 118 1.1.4.2 tls /* Z set if compare = result */ 119 1.1.4.2 tls /* C set if compare (=,>=,UNORD) result */ 120 1.1.4.2 tls /* V set if compare UNORD result */ 121 1.1.4.2 tls 122 1.1.4.2 tls STRONG_ALIAS(__eqsf2, __nesf2) 123 1.1.4.2 tls ENTRY(__nesf2) 124 1.1.4.2 tls vmov s0, s1, r0, r1 125 1.1.4.2 tls vcmp.f32 s0, s1 126 1.1.4.2 tls vmrs APSR_nzcv, fpscr 127 1.1.4.2 tls moveq r0, #0 /* !(a == b) */ 128 1.1.4.2 tls movne r0, #1 /* !(a == b) */ 129 1.1.4.2 tls RET 130 1.1.4.2 tls END(__nesf2) 131 1.1.4.2 tls 132 1.1.4.2 tls STRONG_ALIAS(__gesf2, __ltsf2) 133 1.1.4.2 tls ENTRY(__ltsf2) 134 1.1.4.2 tls vmov s0, s1, r0, r1 135 1.1.4.2 tls vcmp.f32 s0, s1 136 1.1.4.2 tls vmrs APSR_nzcv, fpscr 137 1.1.4.2 tls mvnmi r0, #0 /* -(a < b) */ 138 1.1.4.2 tls movpl r0, #0 /* -(a < b) */ 139 1.1.4.2 tls RET 140 1.1.4.2 tls END(__ltsf2) 141 1.1.4.2 tls 142 1.1.4.2 tls STRONG_ALIAS(__gtsf2, __lesf2) 143 1.1.4.2 tls ENTRY(__lesf2) 144 1.1.4.2 tls vmov s0, s1, r0, r1 145 1.1.4.2 tls vcmp.f32 s0, s1 146 1.1.4.2 tls vmrs APSR_nzcv, fpscr 147 1.1.4.2 tls movgt r0, #1 /* (a > b) */ 148 1.1.4.2 tls movle r0, #0 /* (a > b) */ 149 1.1.4.2 tls RET 150 1.1.4.2 tls END(__lesf2) 151 1.1.4.2 tls 152 1.1.4.2 tls ENTRY(__unordsf2) 153 1.1.4.2 tls vmov s0, s1, r0, r1 154 1.1.4.2 tls vcmp.f32 s0, s1 155 1.1.4.2 tls vmrs APSR_nzcv, fpscr 156 1.1.4.2 tls movvs r0, #1 /* isnan(a) || isnan(b) */ 157 1.1.4.2 tls movvc r0, #0 /* isnan(a) || isnan(b) */ 158 1.1.4.2 tls RET 159 1.1.4.2 tls END(__unordsf2) 160
Indexes created Fri Oct 03 02:09:57 GMT 2025