projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 9304f876 | 1 | /* newlib libgcc routines of Andes NDS32 cpu for GNU compiler |
| a945c346 | 2 | Copyright (C) 2012-2024 Free Software Foundation, Inc. |
| 9304f876 CJW |
3 | Contributed by Andes Technology Corporation. |
| 4 | ||
| 5 | This file is part of GCC. | |
| 6 | ||
| 7 | GCC is free software; you can redistribute it and/or modify it | |
| 8 | under the terms of the GNU General Public License as published | |
| 9 | by the Free Software Foundation; either version 3, or (at your | |
| 10 | option) any later version. | |
| 11 | ||
| 12 | GCC is distributed in the hope that it will be useful, but WITHOUT | |
| 13 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
| 14 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
| 15 | License for more details. | |
| 16 | ||
| 17 | Under Section 7 of GPL version 3, you are granted additional | |
| 18 | permissions described in the GCC Runtime Library Exception, version | |
| 19 | 3.1, as published by the Free Software Foundation. | |
| 20 | ||
| 21 | You should have received a copy of the GNU General Public License and | |
| 22 | a copy of the GCC Runtime Library Exception along with this program; | |
| 23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 24 | <http://www.gnu.org/licenses/>. */ | |
| 25 | ||
| 26 | .section .mdebug.abi_nds32 | |
| 27 | .previous | |
| 28 | ||
| 29 | #ifdef L_divsi3 | |
| 30 | ||
| 31 | .text | |
| 32 | .align 2 | |
| 33 | .globl __divsi3 | |
| 34 | .type __divsi3, @function | |
| 35 | __divsi3: | |
| 36 | movi $r5, 0 ! res = 0 | |
| 37 | xor $r4, $r0, $r1 ! neg | |
| 38 | bltz $r0, .L1 | |
| 39 | bltz $r1, .L2 | |
| 40 | .L3: | |
| 41 | movi $r2, 1 ! bit = 1 | |
| 42 | slt $r3, $r1, $r0 ! test if dividend is smaller than or equal to divisor | |
| 43 | beqz $r3, .L5 | |
| 44 | bltz $r1, .L5 | |
| 45 | ||
| 46 | .L4: | |
| 47 | slli $r2, $r2, 1 | |
| 48 | beqz $r2, .L6 | |
| 49 | slli $r1, $r1, 1 | |
| 50 | slt $r3, $r1, $r0 | |
| 51 | beqz $r3, .L5 | |
| 52 | bgez $r1, .L4 | |
| 53 | ||
| 54 | .L5: | |
| 55 | slt $r3, $r0, $r1 | |
| 56 | bnez $r3, .L8 | |
| 57 | sub $r0, $r0, $r1 | |
| 58 | or $r5, $r5, $r2 | |
| 59 | .L8: | |
| 60 | srli $r1, $r1, 1 | |
| 61 | srli $r2, $r2, 1 | |
| 62 | bnez $r2, .L5 | |
| 63 | .L6: | |
| 64 | bgez $r4, .L7 | |
| 65 | subri $r5, $r5, 0 ! negate if $r4 < 0 | |
| 66 | .L7: | |
| 67 | move $r0, $r5 | |
| 68 | ret | |
| 69 | .L1: | |
| 70 | subri $r0, $r0, 0 ! change neg to pos | |
| 71 | bgez $r1, .L3 | |
| 72 | .L2: | |
| 73 | subri $r1, $r1, 0 ! change neg to pos | |
| 74 | j .L3 | |
| 75 | .size __divsi3, .-__divsi3 | |
| 76 | ||
| 77 | #endif /* L_divsi3 */ | |
| 78 | ||
| 79 | ||
| 80 | #ifdef L_modsi3 | |
| 81 | ||
| 82 | .text | |
| 83 | .align 2 | |
| 84 | .globl __modsi3 | |
| 85 | .type __modsi3, @function | |
| 86 | __modsi3: | |
| 87 | movi $r5, 0 ! res = 0 | |
| 88 | move $r4, $r0 ! neg | |
| 89 | bltz $r0, .L1 | |
| 90 | bltz $r1, .L2 | |
| 91 | .L3: | |
| 92 | movi $r2, 1 ! bit = 1 | |
| 93 | slt $r3, $r1, $r0 ! test if dividend is smaller than or equal to divisor | |
| 94 | beqz $r3, .L5 | |
| 95 | bltz $r1, .L5 | |
| 96 | ||
| 97 | .L4: | |
| 98 | slli $r2, $r2, 1 | |
| 99 | beqz $r2, .L6 | |
| 100 | slli $r1, $r1, 1 | |
| 101 | slt $r3, $r1, $r0 | |
| 102 | beqz $r3, .L5 | |
| 103 | bgez $r1, .L4 | |
| 104 | ||
| 105 | .L5: | |
| 106 | slt $r3, $r0, $r1 | |
| 107 | bnez $r3, .L8 | |
| 108 | sub $r0, $r0, $r1 | |
| 109 | or $r5, $r5, $r2 | |
| 110 | .L8: | |
| 111 | srli $r1, $r1, 1 | |
| 112 | srli $r2, $r2, 1 | |
| 113 | bnez $r2, .L5 | |
| 114 | .L6: | |
| 115 | bgez $r4, .L7 | |
| 116 | subri $r0, $r0, 0 ! negate if $r4 < 0 | |
| 117 | .L7: | |
| 118 | ret | |
| 119 | .L1: | |
| 120 | subri $r0, $r0, 0 ! change neg to pos | |
| 121 | bgez $r1, .L3 | |
| 122 | .L2: | |
| 123 | subri $r1, $r1, 0 ! change neg to pos | |
| 124 | j .L3 | |
| 125 | .size __modsi3, .-__modsi3 | |
| 126 | ||
| 127 | #endif /* L_modsi3 */ | |
| 128 | ||
| 129 | ||
| 130 | #ifdef L_udivsi3 | |
| 131 | ||
| 132 | .text | |
| 133 | .align 2 | |
| 134 | .globl __udivsi3 | |
| 135 | .type __udivsi3, @function | |
| 136 | __udivsi3: | |
| 137 | movi $r5, 0 ! res = 0 | |
| 138 | movi $r2, 1 ! bit = 1 | |
| 139 | slt $r3, $r1, $r0 ! test if dividend is smaller than or equal to divisor | |
| 140 | beqz $r3, .L5 | |
| 141 | bltz $r1, .L5 | |
| 142 | ||
| 143 | .L4: | |
| 144 | slli $r2, $r2, 1 | |
| 145 | beqz $r2, .L6 | |
| 146 | slli $r1, $r1, 1 | |
| 147 | slt $r3, $r1, $r0 | |
| 148 | beqz $r3, .L5 | |
| 149 | bgez $r1, .L4 | |
| 150 | ||
| 151 | .L5: | |
| 152 | slt $r3, $r0, $r1 | |
| 153 | bnez $r3, .L8 | |
| 154 | sub $r0, $r0, $r1 | |
| 155 | or $r5, $r5, $r2 | |
| 156 | .L8: | |
| 157 | srli $r1, $r1, 1 | |
| 158 | srli $r2, $r2, 1 | |
| 159 | bnez $r2, .L5 | |
| 160 | .L6: | |
| 161 | move $r0, $r5 | |
| 162 | ret | |
| 163 | .size __udivsi3, .-__udivsi3 | |
| 164 | ||
| 165 | #endif /* L_udivsi3 */ | |
| 166 | ||
| 167 | ||
| 168 | #ifdef L_umodsi3 | |
| 169 | ||
| 170 | .text | |
| 171 | .align 2 | |
| 172 | .globl __umodsi3 | |
| 173 | .type __umodsi3, @function | |
| 174 | __umodsi3: | |
| 175 | movi $r5, 0 ! res = 0 | |
| 176 | movi $r2, 1 ! bit = 1 | |
| 177 | slt $r3, $r1, $r0 ! test if dividend is smaller than or equal to divisor | |
| 178 | beqz $r3, .L5 | |
| 179 | bltz $r1, .L5 | |
| 180 | ||
| 181 | .L4: | |
| 182 | slli $r2, $r2, 1 | |
| 183 | beqz $r2, .L6 | |
| 184 | slli $r1, $r1, 1 | |
| 185 | slt $r3, $r1, $r0 | |
| 186 | beqz $r3, .L5 | |
| 187 | bgez $r1, .L4 | |
| 188 | ||
| 189 | .L5: | |
| 190 | slt $r3, $r0, $r1 | |
| 191 | bnez $r3, .L8 | |
| 192 | sub $r0, $r0, $r1 | |
| 193 | or $r5, $r5, $r2 | |
| 194 | .L8: | |
| 195 | srli $r1, $r1, 1 | |
| 196 | srli $r2, $r2, 1 | |
| 197 | bnez $r2, .L5 | |
| 198 | .L6: | |
| 199 | ret | |
| 200 | .size __umodsi3, .-__umodsi3 | |
| 201 | ||
| 202 | #endif /* L_umodsi3 */ | |
| 203 | ||
| 204 | /* ----------------------------------------------------------- */ |