1/* 2 * Copyright (C) 2013 Andrew Turner 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 */ 27 28#include <machine/asm.h> 29__FBSDID("$FreeBSD$"); 30 31#include "aeabi_vfp.h" 32 33.fpu vfp 34.syntax unified 35 36/* void __aeabi_cdcmpeq(double, double) */ 37AEABI_ENTRY(cdcmpeq) 38 LOAD_DREG(d0, r0, r1) 39 LOAD_DREG(d1, r2, r3) 40 vcmp.f64 d0, d1 41 vmrs APSR_nzcv, fpscr 42 RET 43AEABI_END(cdcmpeq) 44 45/* void __aeabi_cdcmple(double, double) */ 46AEABI_ENTRY(cdcmple) 47 LOAD_DREG(d0, r0, r1) 48 LOAD_DREG(d1, r2, r3) 49 vcmpe.f64 d0, d1 50 vmrs APSR_nzcv, fpscr 51 RET 52AEABI_END(cdcmple) 53 54/* void __aeabi_cdrcmple(double, double) */ 55AEABI_ENTRY(cdrcmple) 56 LOAD_DREG(d0, r0, r1) 57 LOAD_DREG(d1, r2, r3) 58 vcmpe.f64 d1, d0 59 vmrs APSR_nzcv, fpscr 60 RET 61AEABI_END(cdrcmple) 62 63/* int __aeabi_dcmpeq(double, double) */ 64AEABI_ENTRY(dcmpeq) 65 LOAD_DREG(d0, r0, r1) 66 LOAD_DREG(d1, r2, r3) 67 vcmp.f64 d0, d1 68 vmrs APSR_nzcv, fpscr 69 ite ne 70 movne r0, #0 71 moveq r0, #1 72 RET 73AEABI_END(dcmpeq) 74 75/* int __aeabi_dcmplt(double, double) */ 76AEABI_ENTRY(dcmplt) 77 LOAD_DREG(d0, r0, r1) 78 LOAD_DREG(d1, r2, r3) 79 vcmp.f64 d0, d1 80 vmrs APSR_nzcv, fpscr 81 ite cs 82 movcs r0, #0 83 movcc r0, #1 84 RET 85AEABI_END(dcmplt) 86 87/* int __aeabi_dcmple(double, double) */ 88AEABI_ENTRY(dcmple) 89 LOAD_DREG(d0, r0, r1) 90 LOAD_DREG(d1, r2, r3) 91 vcmp.f64 d0, d1 92 vmrs APSR_nzcv, fpscr 93 ite hi 94 movhi r0, #0 95 movls r0, #1 96 RET 97AEABI_END(dcmple) 98 99/* int __aeabi_dcmpge(double, double) */ 100AEABI_ENTRY(dcmpge) 101 LOAD_DREG(d0, r0, r1) 102 LOAD_DREG(d1, r2, r3) 103 vcmp.f64 d0, d1 104 vmrs APSR_nzcv, fpscr 105 ite lt 106 movlt r0, #0 107 movge r0, #1 108 RET 109AEABI_END(dcmpge) 110 111/* int __aeabi_dcmpgt(double, double) */ 112AEABI_ENTRY(dcmpgt) 113 LOAD_DREG(d0, r0, r1) 114 LOAD_DREG(d1, r2, r3) 115 vcmp.f64 d0, d1 116 vmrs APSR_nzcv, fpscr 117 ite le 118 movle r0, #0 119 movgt r0, #1 120 RET 121AEABI_END(dcmpgt) 122 123/* int __aeabi_dcmpun(double, double) */ 124AEABI_ENTRY(dcmpun) 125 LOAD_DREG(d0, r0, r1) 126 LOAD_DREG(d1, r2, r3) 127 vcmp.f64 d0, d1 128 vmrs APSR_nzcv, fpscr 129 ite vc 130 movvc r0, #0 131 movvs r0, #1 132 RET 133AEABI_END(dcmpun) 134 135/* int __aeabi_d2iz(double) */ 136AEABI_ENTRY(d2iz) 137 LOAD_DREG(d0, r0, r1) 138#if 0 139 /* 140 * This should be the correct instruction, but binutils incorrectly 141 * encodes it as the version that used FPSCR to determine the rounding. 142 * When binutils is fixed we can use this again. 143 */ 144 vcvt.s32.f64 s0, d0 145#else 146 ftosizd s0, d0 147#endif 148 vmov r0, s0 149 RET 150AEABI_END(d2iz) 151 152/* float __aeabi_d2f(double) */ 153AEABI_ENTRY(d2f) 154 LOAD_DREG(d0, r0, r1) 155 vcvt.f32.f64 s0, d0 156 UNLOAD_SREG(r0, s0) 157 RET 158AEABI_END(d2f) 159 160/* double __aeabi_i2d(int) */ 161AEABI_ENTRY(i2d) 162 vmov s0, r0 163 vcvt.f64.s32 d0, s0 164 UNLOAD_DREG(r0, r1, d0) 165 RET 166AEABI_END(i2d) 167 168/* double __aeabi_dadd(double, double) */ 169AEABI_ENTRY(dadd) 170 LOAD_DREG(d0, r0, r1) 171 LOAD_DREG(d1, r2, r3) 172 vadd.f64 d0, d0, d1 173 UNLOAD_DREG(r0, r1, d0) 174 RET 175AEABI_END(dadd) 176 177/* double __aeabi_ddiv(double, double) */ 178AEABI_ENTRY(ddiv) 179 LOAD_DREG(d0, r0, r1) 180 LOAD_DREG(d1, r2, r3) 181 vdiv.f64 d0, d0, d1 182 UNLOAD_DREG(r0, r1, d0) 183 RET 184AEABI_END(ddiv) 185 186/* double __aeabi_dmul(double, double) */ 187AEABI_ENTRY(dmul) 188 LOAD_DREG(d0, r0, r1) 189 LOAD_DREG(d1, r2, r3) 190 vmul.f64 d0, d0, d1 191 UNLOAD_DREG(r0, r1, d0) 192 RET 193AEABI_END(dmul) 194 195/* double __aeabi_dsub(double, double) */ 196AEABI_ENTRY(dsub) 197 LOAD_DREG(d0, r0, r1) 198 LOAD_DREG(d1, r2, r3) 199 vsub.f64 d0, d0, d1 200 UNLOAD_DREG(r0, r1, d0) 201 RET 202AEABI_END(dsub) 203 204