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#include "aeabi_vfp.h" 30 31.fpu vfp 32.syntax unified 33 34/* void __aeabi_cdcmpeq(double, double) */ 35AEABI_ENTRY(cdcmpeq) 36 LOAD_DREG(d0, r0, r1) 37 LOAD_DREG(d1, r2, r3) 38 vcmp.f64 d0, d1 39 vmrs APSR_nzcv, fpscr 40 RET 41AEABI_END(cdcmpeq) 42 43/* void __aeabi_cdcmple(double, double) */ 44AEABI_ENTRY(cdcmple) 45 LOAD_DREG(d0, r0, r1) 46 LOAD_DREG(d1, r2, r3) 47 vcmpe.f64 d0, d1 48 vmrs APSR_nzcv, fpscr 49 RET 50AEABI_END(cdcmple) 51 52/* void __aeabi_cdrcmple(double, double) */ 53AEABI_ENTRY(cdrcmple) 54 LOAD_DREG(d0, r0, r1) 55 LOAD_DREG(d1, r2, r3) 56 vcmpe.f64 d1, d0 57 vmrs APSR_nzcv, fpscr 58 RET 59AEABI_END(cdrcmple) 60 61/* int __aeabi_dcmpeq(double, double) */ 62AEABI_ENTRY(dcmpeq) 63 LOAD_DREG(d0, r0, r1) 64 LOAD_DREG(d1, r2, r3) 65 vcmp.f64 d0, d1 66 vmrs APSR_nzcv, fpscr 67 ite ne 68 movne r0, #0 69 moveq r0, #1 70 RET 71AEABI_END(dcmpeq) 72 73/* int __aeabi_dcmplt(double, double) */ 74AEABI_ENTRY(dcmplt) 75 LOAD_DREG(d0, r0, r1) 76 LOAD_DREG(d1, r2, r3) 77 vcmp.f64 d0, d1 78 vmrs APSR_nzcv, fpscr 79 ite cs 80 movcs r0, #0 81 movcc r0, #1 82 RET 83AEABI_END(dcmplt) 84 85/* int __aeabi_dcmple(double, double) */ 86AEABI_ENTRY(dcmple) 87 LOAD_DREG(d0, r0, r1) 88 LOAD_DREG(d1, r2, r3) 89 vcmp.f64 d0, d1 90 vmrs APSR_nzcv, fpscr 91 ite hi 92 movhi r0, #0 93 movls r0, #1 94 RET 95AEABI_END(dcmple) 96 97/* int __aeabi_dcmpge(double, double) */ 98AEABI_ENTRY(dcmpge) 99 LOAD_DREG(d0, r0, r1) 100 LOAD_DREG(d1, r2, r3) 101 vcmp.f64 d0, d1 102 vmrs APSR_nzcv, fpscr 103 ite lt 104 movlt r0, #0 105 movge r0, #1 106 RET 107AEABI_END(dcmpge) 108 109/* int __aeabi_dcmpgt(double, double) */ 110AEABI_ENTRY(dcmpgt) 111 LOAD_DREG(d0, r0, r1) 112 LOAD_DREG(d1, r2, r3) 113 vcmp.f64 d0, d1 114 vmrs APSR_nzcv, fpscr 115 ite le 116 movle r0, #0 117 movgt r0, #1 118 RET 119AEABI_END(dcmpgt) 120 121/* int __aeabi_dcmpun(double, double) */ 122AEABI_ENTRY(dcmpun) 123 LOAD_DREG(d0, r0, r1) 124 LOAD_DREG(d1, r2, r3) 125 vcmp.f64 d0, d1 126 vmrs APSR_nzcv, fpscr 127 ite vc 128 movvc r0, #0 129 movvs r0, #1 130 RET 131AEABI_END(dcmpun) 132 133/* int __aeabi_d2iz(double) */ 134AEABI_ENTRY(d2iz) 135 LOAD_DREG(d0, r0, r1) 136#if 0 137 /* 138 * This should be the correct instruction, but binutils incorrectly 139 * encodes it as the version that used FPSCR to determine the rounding. 140 * When binutils is fixed we can use this again. 141 */ 142 vcvt.s32.f64 s0, d0 143#else 144 ftosizd s0, d0 145#endif 146 vmov r0, s0 147 RET 148AEABI_END(d2iz) 149 150/* float __aeabi_d2f(double) */ 151AEABI_ENTRY(d2f) 152 LOAD_DREG(d0, r0, r1) 153 vcvt.f32.f64 s0, d0 154 UNLOAD_SREG(r0, s0) 155 RET 156AEABI_END(d2f) 157 158/* double __aeabi_i2d(int) */ 159AEABI_ENTRY(i2d) 160 vmov s0, r0 161 vcvt.f64.s32 d0, s0 162 UNLOAD_DREG(r0, r1, d0) 163 RET 164AEABI_END(i2d) 165 166/* double __aeabi_dadd(double, double) */ 167AEABI_ENTRY(dadd) 168 LOAD_DREG(d0, r0, r1) 169 LOAD_DREG(d1, r2, r3) 170 vadd.f64 d0, d0, d1 171 UNLOAD_DREG(r0, r1, d0) 172 RET 173AEABI_END(dadd) 174 175/* double __aeabi_ddiv(double, double) */ 176AEABI_ENTRY(ddiv) 177 LOAD_DREG(d0, r0, r1) 178 LOAD_DREG(d1, r2, r3) 179 vdiv.f64 d0, d0, d1 180 UNLOAD_DREG(r0, r1, d0) 181 RET 182AEABI_END(ddiv) 183 184/* double __aeabi_dmul(double, double) */ 185AEABI_ENTRY(dmul) 186 LOAD_DREG(d0, r0, r1) 187 LOAD_DREG(d1, r2, r3) 188 vmul.f64 d0, d0, d1 189 UNLOAD_DREG(r0, r1, d0) 190 RET 191AEABI_END(dmul) 192 193/* double __aeabi_dsub(double, double) */ 194AEABI_ENTRY(dsub) 195 LOAD_DREG(d0, r0, r1) 196 LOAD_DREG(d1, r2, r3) 197 vsub.f64 d0, d0, d1 198 UNLOAD_DREG(r0, r1, d0) 199 RET 200AEABI_END(dsub) 201 202 .section .note.GNU-stack,"",%progbits 203