vfpsf.S revision 1.2.6.2
1 1.2.6.2 yamt /*- 2 1.2.6.2 yamt * Copyright (c) 2013 The NetBSD Foundation, Inc. 3 1.2.6.2 yamt * All rights reserved. 4 1.2.6.2 yamt * 5 1.2.6.2 yamt * This code is derived from software contributed to The NetBSD Foundation 6 1.2.6.2 yamt * by Matt Thomas of 3am Software Foundry. 7 1.2.6.2 yamt * 8 1.2.6.2 yamt * Redistribution and use in source and binary forms, with or without 9 1.2.6.2 yamt * modification, are permitted provided that the following conditions 10 1.2.6.2 yamt * are met: 11 1.2.6.2 yamt * 1. Redistributions of source code must retain the above copyright 12 1.2.6.2 yamt * notice, this list of conditions and the following disclaimer. 13 1.2.6.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 14 1.2.6.2 yamt * notice, this list of conditions and the following disclaimer in the 15 1.2.6.2 yamt * documentation and/or other materials provided with the distribution. 16 1.2.6.2 yamt * 17 1.2.6.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 18 1.2.6.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 19 1.2.6.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 1.2.6.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 21 1.2.6.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 1.2.6.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 1.2.6.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 1.2.6.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 1.2.6.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 1.2.6.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 1.2.6.2 yamt * POSSIBILITY OF SUCH DAMAGE. 28 1.2.6.2 yamt */ 29 1.2.6.2 yamt 30 1.2.6.2 yamt #include <arm/asm.h> 31 1.2.6.2 yamt #include <arm/vfpreg.h> 32 1.2.6.2 yamt 33 1.2.6.2 yamt RCSID("$NetBSD: vfpsf.S,v 1.2.6.2 2014/05/22 11:36:55 yamt Exp $") 34 1.2.6.2 yamt 35 1.2.6.2 yamt /* 36 1.2.6.2 yamt * This file provides softfloat compatible routines which use VFP instructions 37 1.2.6.2 yamt * to do the actual work. This should give near hard-float performance while 38 1.2.6.2 yamt * being compatible with soft-float code. 39 1.2.6.2 yamt * 40 1.2.6.2 yamt * This file implements the single precision floating point routines. 41 1.2.6.2 yamt */ 42 1.2.6.2 yamt 43 1.2.6.2 yamt #ifdef __ARM_EABI__ 44 1.2.6.2 yamt #define __addsf3 __aeabi_fadd 45 1.2.6.2 yamt #define __divsf3 __aeabi_fdiv 46 1.2.6.2 yamt #define __mulsf3 __aeabi_fmul 47 1.2.6.2 yamt #define __subsf3 __aeabi_fsub 48 1.2.6.2 yamt #define __negsf2 __aeabi_fneg 49 1.2.6.2 yamt #define __truncdfsf2 __aeabi_d2f 50 1.2.6.2 yamt #define __fixsfsi __aeabi_f2iz 51 1.2.6.2 yamt #define __fixunssfsi __aeabi_f2uiz 52 1.2.6.2 yamt #define __floatsisf __aeabi_i2f 53 1.2.6.2 yamt #define __floatunsisf __aeabi_ui2f 54 1.2.6.2 yamt #endif 55 1.2.6.2 yamt 56 1.2.6.2 yamt ENTRY(__addsf3) 57 1.2.6.2 yamt vmov s0, s1, r0, r1 58 1.2.6.2 yamt vadd.f32 s0, s0, s1 59 1.2.6.2 yamt vmov r0, s0 60 1.2.6.2 yamt RET 61 1.2.6.2 yamt END(__addsf3) 62 1.2.6.2 yamt 63 1.2.6.2 yamt ENTRY(__subsf3) 64 1.2.6.2 yamt vmov s0, s1, r0, r1 65 1.2.6.2 yamt vsub.f32 s0, s0, s1 66 1.2.6.2 yamt vmov r0, s0 67 1.2.6.2 yamt RET 68 1.2.6.2 yamt END(__subsf3) 69 1.2.6.2 yamt 70 1.2.6.2 yamt #ifdef __ARM_EABI__ 71 1.2.6.2 yamt ENTRY(__aeabi_frsub) 72 1.2.6.2 yamt vmov s0, s1, r0, r1 73 1.2.6.2 yamt vsub.f32 s0, s1, s0 74 1.2.6.2 yamt vmov r0, s0 75 1.2.6.2 yamt RET 76 1.2.6.2 yamt END(__aeabi_frsub) 77 1.2.6.2 yamt #endif 78 1.2.6.2 yamt 79 1.2.6.2 yamt ENTRY(__mulsf3) 80 1.2.6.2 yamt vmov s0, s1, r0, r1 81 1.2.6.2 yamt vmul.f32 s0, s0, s1 82 1.2.6.2 yamt vmov r0, s0 83 1.2.6.2 yamt RET 84 1.2.6.2 yamt END(__mulsf3) 85 1.2.6.2 yamt 86 1.2.6.2 yamt ENTRY(__divsf3) 87 1.2.6.2 yamt vmov s0, s1, r0, r1 88 1.2.6.2 yamt vdiv.f32 s0, s0, s1 89 1.2.6.2 yamt vmov r0, s0 90 1.2.6.2 yamt RET 91 1.2.6.2 yamt END(__divsf3) 92 1.2.6.2 yamt 93 1.2.6.2 yamt ENTRY(__negsf2) 94 1.2.6.2 yamt vmov s0, r0 95 1.2.6.2 yamt vneg.f32 s0, s0 96 1.2.6.2 yamt vmov r0, s0 97 1.2.6.2 yamt RET 98 1.2.6.2 yamt END(__negsf2) 99 1.2.6.2 yamt 100 1.2.6.2 yamt ENTRY(__truncdfsf2) 101 1.2.6.2 yamt #ifdef __ARMEL__ 102 1.2.6.2 yamt vmov d0, r0, r1 103 1.2.6.2 yamt #else 104 1.2.6.2 yamt vmov d0, r1, r0 105 1.2.6.2 yamt #endif 106 1.2.6.2 yamt vcvt.f32.f64 s0, d0 107 1.2.6.2 yamt vmov r0, s0 108 1.2.6.2 yamt RET 109 1.2.6.2 yamt END(__truncdfsf2) 110 1.2.6.2 yamt 111 1.2.6.2 yamt ENTRY(__fixsfsi) 112 1.2.6.2 yamt vmov s0, r0 113 1.2.6.2 yamt vcvt.s32.f32 s0, s0 114 1.2.6.2 yamt vmov r0, s0 115 1.2.6.2 yamt RET 116 1.2.6.2 yamt END(__fixsfsi) 117 1.2.6.2 yamt 118 1.2.6.2 yamt ENTRY(__fixunssfsi) 119 1.2.6.2 yamt vmov s0, r0 120 1.2.6.2 yamt vcvt.u32.f32 s0, s0 121 1.2.6.2 yamt vmov r0, s0 122 1.2.6.2 yamt RET 123 1.2.6.2 yamt END(__fixunssfsi) 124 1.2.6.2 yamt 125 1.2.6.2 yamt ENTRY(__floatsisf) 126 1.2.6.2 yamt vmov s0, r0 127 1.2.6.2 yamt vcvt.f32.s32 s0, s0 128 1.2.6.2 yamt vmov r0, s0 129 1.2.6.2 yamt RET 130 1.2.6.2 yamt END(__floatsisf) 131 1.2.6.2 yamt 132 1.2.6.2 yamt ENTRY(__floatunsisf) 133 1.2.6.2 yamt vmov s0, r0 134 1.2.6.2 yamt vcvt.f32.u32 s0, s0 135 1.2.6.2 yamt vmov r0, s0 136 1.2.6.2 yamt RET 137 1.2.6.2 yamt END(__floatunsisf) 138 1.2.6.2 yamt 139 1.2.6.2 yamt /* 140 1.2.6.2 yamt * Effect of a floating point comparision on the condition flags. 141 1.2.6.2 yamt * N Z C V 142 1.2.6.2 yamt * EQ = 0 1 1 0 143 1.2.6.2 yamt * LT = 1 0 0 0 144 1.2.6.2 yamt * GT = 0 0 1 0 145 1.2.6.2 yamt * UN = 0 0 1 1 146 1.2.6.2 yamt */ 147 1.2.6.2 yamt #ifdef __ARM_EABI__ 148 1.2.6.2 yamt ENTRY(__aeabi_cfcmpeq) 149 1.2.6.2 yamt vmov s0, s1, r0, r1 150 1.2.6.2 yamt vcmp.f32 s0, s1 151 1.2.6.2 yamt vmrs APSR_nzcv, fpscr 152 1.2.6.2 yamt RET 153 1.2.6.2 yamt END(__aeabi_cfcmpeq) 154 1.2.6.2 yamt 155 1.2.6.2 yamt ENTRY(__aeabi_cfcmple) 156 1.2.6.2 yamt vmov s0, s1, r0, r1 157 1.2.6.2 yamt vcmpe.f32 s0, s1 158 1.2.6.2 yamt vmrs APSR_nzcv, fpscr 159 1.2.6.2 yamt RET 160 1.2.6.2 yamt END(__aeabi_cfcmple) 161 1.2.6.2 yamt 162 1.2.6.2 yamt ENTRY(__aeabi_cfrcmple) 163 1.2.6.2 yamt vmov s0, s1, r0, r1 164 1.2.6.2 yamt vcmpe.f32 s1, s0 165 1.2.6.2 yamt vmrs APSR_nzcv, fpscr 166 1.2.6.2 yamt RET 167 1.2.6.2 yamt END(__aeabi_cfrcmple) 168 1.2.6.2 yamt 169 1.2.6.2 yamt ENTRY(__aeabi_fcmpeq) 170 1.2.6.2 yamt vmov s0, s1, r0, r1 171 1.2.6.2 yamt vcmp.f32 s0, s1 172 1.2.6.2 yamt vmrs APSR_nzcv, fpscr 173 1.2.6.2 yamt moveq r0, #1 /* (a == b) */ 174 1.2.6.2 yamt movne r0, #0 /* (a != b) or unordered */ 175 1.2.6.2 yamt RET 176 1.2.6.2 yamt END(__aeabi_fcmpeq) 177 1.2.6.2 yamt 178 1.2.6.2 yamt ENTRY(__aeabi_fcmplt) 179 1.2.6.2 yamt vmov s0, s1, r0, r1 180 1.2.6.2 yamt vcmp.f32 s0, s1 181 1.2.6.2 yamt vmrs APSR_nzcv, fpscr 182 1.2.6.2 yamt movlt r0, #1 /* (a < b) */ 183 1.2.6.2 yamt movcs r0, #0 /* (a >= b) or unordered */ 184 1.2.6.2 yamt RET 185 1.2.6.2 yamt END(__aeabi_fcmplt) 186 1.2.6.2 yamt 187 1.2.6.2 yamt ENTRY(__aeabi_fcmple) 188 1.2.6.2 yamt vmov s0, s1, r0, r1 189 1.2.6.2 yamt vcmp.f32 s0, s1 190 1.2.6.2 yamt vmrs APSR_nzcv, fpscr 191 1.2.6.2 yamt movls r0, #1 /* (a <= b) */ 192 1.2.6.2 yamt movhi r0, #0 /* (a > b) or unordered */ 193 1.2.6.2 yamt RET 194 1.2.6.2 yamt END(__aeabi_fcmple) 195 1.2.6.2 yamt 196 1.2.6.2 yamt ENTRY(__aeabi_fcmpge) 197 1.2.6.2 yamt vmov s0, s1, r0, r1 198 1.2.6.2 yamt vcmp.f32 s0, s1 199 1.2.6.2 yamt vmrs APSR_nzcv, fpscr 200 1.2.6.2 yamt movge r0, #1 /* (a >= b) */ 201 1.2.6.2 yamt movlt r0, #0 /* (a < b) or unordered */ 202 1.2.6.2 yamt RET 203 1.2.6.2 yamt END(__aeabi_fcmpge) 204 1.2.6.2 yamt 205 1.2.6.2 yamt ENTRY(__aeabi_fcmpgt) 206 1.2.6.2 yamt vmov s0, s1, r0, r1 207 1.2.6.2 yamt vcmp.f32 s0, s1 208 1.2.6.2 yamt vmrs APSR_nzcv, fpscr 209 1.2.6.2 yamt movgt r0, #1 /* (a > b) */ 210 1.2.6.2 yamt movle r0, #0 /* (a <= b) or unordered */ 211 1.2.6.2 yamt RET 212 1.2.6.2 yamt END(__aeabi_fcmpgt) 213 1.2.6.2 yamt 214 1.2.6.2 yamt ENTRY(__aeabi_fcmpun) 215 1.2.6.2 yamt vmov s0, s1, r0, r1 216 1.2.6.2 yamt vcmp.f32 s0, s1 217 1.2.6.2 yamt vmrs APSR_nzcv, fpscr 218 1.2.6.2 yamt movvs r0, #1 /* (isnan(a) || isnan(b)) */ 219 1.2.6.2 yamt movvc r0, #0 /* !isnan(a) && !isnan(b) */ 220 1.2.6.2 yamt RET 221 1.2.6.2 yamt END(__aeabi_fcmpun) 222 1.2.6.2 yamt 223 1.2.6.2 yamt #else 224 1.2.6.2 yamt /* N set if compare <= result */ 225 1.2.6.2 yamt /* Z set if compare = result */ 226 1.2.6.2 yamt /* C set if compare (=,>=,UNORD) result */ 227 1.2.6.2 yamt /* V set if compare UNORD result */ 228 1.2.6.2 yamt 229 1.2.6.2 yamt STRONG_ALIAS(__eqsf2, __nesf2) 230 1.2.6.2 yamt ENTRY(__nesf2) 231 1.2.6.2 yamt vmov s0, s1, r0, r1 232 1.2.6.2 yamt vcmp.f32 s0, s1 233 1.2.6.2 yamt vmrs APSR_nzcv, fpscr 234 1.2.6.2 yamt moveq r0, #0 /* !(a == b) */ 235 1.2.6.2 yamt movne r0, #1 /* !(a == b) */ 236 1.2.6.2 yamt RET 237 1.2.6.2 yamt END(__nesf2) 238 1.2.6.2 yamt 239 1.2.6.2 yamt STRONG_ALIAS(__gesf2, __ltsf2) 240 1.2.6.2 yamt ENTRY(__ltsf2) 241 1.2.6.2 yamt vmov s0, s1, r0, r1 242 1.2.6.2 yamt vcmp.f32 s0, s1 243 1.2.6.2 yamt vmrs APSR_nzcv, fpscr 244 1.2.6.2 yamt mvnmi r0, #0 /* -(a < b) */ 245 1.2.6.2 yamt movpl r0, #0 /* -(a < b) */ 246 1.2.6.2 yamt RET 247 1.2.6.2 yamt END(__ltsf2) 248 1.2.6.2 yamt 249 1.2.6.2 yamt STRONG_ALIAS(__gtsf2, __lesf2) 250 1.2.6.2 yamt ENTRY(__lesf2) 251 1.2.6.2 yamt vmov s0, s1, r0, r1 252 1.2.6.2 yamt vcmp.f32 s0, s1 253 1.2.6.2 yamt vmrs APSR_nzcv, fpscr 254 1.2.6.2 yamt movgt r0, #1 /* (a > b) */ 255 1.2.6.2 yamt movle r0, #0 /* (a > b) */ 256 1.2.6.2 yamt RET 257 1.2.6.2 yamt END(__lesf2) 258 1.2.6.2 yamt 259 1.2.6.2 yamt ENTRY(__unordsf2) 260 1.2.6.2 yamt vmov s0, s1, r0, r1 261 1.2.6.2 yamt vcmp.f32 s0, s1 262 1.2.6.2 yamt vmrs APSR_nzcv, fpscr 263 1.2.6.2 yamt movvs r0, #1 /* isnan(a) || isnan(b) */ 264 1.2.6.2 yamt movvc r0, #0 /* isnan(a) || isnan(b) */ 265 1.2.6.2 yamt RET 266 1.2.6.2 yamt END(__unordsf2) 267 1.2.6.2 yamt #endif /* !__ARM_EABI__ */ 268
Indexes created Fri Oct 03 02:09:57 GMT 2025