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 movne r0, #0 70 moveq r0, #1 71 RET 72AEABI_END(dcmpeq) 73 74/* int __aeabi_dcmplt(double, double) */ 75AEABI_ENTRY(dcmplt) 76 LOAD_DREG(d0, r0, r1) 77 LOAD_DREG(d1, r2, r3) 78 vcmp.f64 d0, d1 79 vmrs APSR_nzcv, fpscr 80 movcs r0, #0 81 movlt 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 movhi r0, #0 92 movls r0, #1 93 RET 94AEABI_END(dcmple) 95 96/* int __aeabi_dcmpge(double, double) */ 97AEABI_ENTRY(dcmpge) 98 LOAD_DREG(d0, r0, r1) 99 LOAD_DREG(d1, r2, r3) 100 vcmp.f64 d0, d1 101 vmrs APSR_nzcv, fpscr 102 movlt r0, #0 103 movge r0, #1 104 RET 105AEABI_END(dcmpge) 106 107/* int __aeabi_dcmpgt(double, double) */ 108AEABI_ENTRY(dcmpgt) 109 LOAD_DREG(d0, r0, r1) 110 LOAD_DREG(d1, r2, r3) 111 vcmp.f64 d0, d1 112 vmrs APSR_nzcv, fpscr 113 movle r0, #0 114 movgt r0, #1 115 RET 116AEABI_END(dcmpgt) 117 118/* int __aeabi_dcmpun(double, double) */ 119AEABI_ENTRY(dcmpun) 120 LOAD_DREG(d0, r0, r1) 121 LOAD_DREG(d1, r2, r3) 122 vcmp.f64 d0, d1 123 vmrs APSR_nzcv, fpscr 124 movvc r0, #0 125 movvs r0, #1 126 RET 127AEABI_END(dcmpun) 128 129/* int __aeabi_d2iz(double) */ 130AEABI_ENTRY(d2iz) 131 LOAD_DREG(d0, r0, r1) 132#if 0 133 /* 134 * This should be the correct instruction, but binutils incorrectly 135 * encodes it as the version that used FPSCR to determine the rounding. 136 * When binutils is fixed we can use this again. 137 */ 138 vcvt.s32.f64 s0, d0 139#else 140 ftosizd s0, d0 141#endif 142 vmov r0, s0 143 RET 144AEABI_END(d2iz) 145 146/* float __aeabi_d2f(double) */ 147AEABI_ENTRY(d2f) 148 LOAD_DREG(d0, r0, r1) 149 vcvt.f32.f64 s0, d0 150 UNLOAD_SREG(r0, s0) 151 RET 152AEABI_END(d2f) 153 154/* double __aeabi_i2d(int) */ 155AEABI_ENTRY(i2d) 156 vmov s0, r0 157 vcvt.f64.s32 d0, s0 158 UNLOAD_DREG(r0, r1, d0) 159 RET 160AEABI_END(i2d) 161 162/* double __aeabi_dadd(double, double) */ 163AEABI_ENTRY(dadd) 164 LOAD_DREG(d0, r0, r1) 165 LOAD_DREG(d1, r2, r3) 166 vadd.f64 d0, d0, d1 167 UNLOAD_DREG(r0, r1, d0) 168 RET 169AEABI_END(dadd) 170 171/* double __aeabi_ddiv(double, double) */ 172AEABI_ENTRY(ddiv) 173 LOAD_DREG(d0, r0, r1) 174 LOAD_DREG(d1, r2, r3) 175 vdiv.f64 d0, d0, d1 176 UNLOAD_DREG(r0, r1, d0) 177 RET 178AEABI_END(ddiv) 179 180/* double __aeabi_dmul(double, double) */ 181AEABI_ENTRY(dmul) 182 LOAD_DREG(d0, r0, r1) 183 LOAD_DREG(d1, r2, r3) 184 vmul.f64 d0, d0, d1 185 UNLOAD_DREG(r0, r1, d0) 186 RET 187AEABI_END(dmul) 188 189/* double __aeabi_dsub(double, double) */ 190AEABI_ENTRY(dsub) 191 LOAD_DREG(d0, r0, r1) 192 LOAD_DREG(d1, r2, r3) 193 vsub.f64 d0, d0, d1 194 UNLOAD_DREG(r0, r1, d0) 195 RET 196AEABI_END(dsub) 197 198