div.S revision 1.1
1 /* Tests the divide instructions. 2 3 Copyright (C) 2017-2023 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18 # mach: or1k 19 # output: report(0x0000000c);\n 20 # output: report(0x00000003);\n 21 # output: report(0x00000004);\n 22 # output: report(0x00000000);\n 23 # output: report(0x00000000);\n 24 # output: report(0x00000000);\n 25 # output: \n 26 # output: report(0x0000000b);\n 27 # output: report(0x00000003);\n 28 # output: report(0x00000003);\n 29 # output: report(0x00000000);\n 30 # output: report(0x00000000);\n 31 # output: report(0x00000000);\n 32 # output: \n 33 # output: report(0xfffffff4);\n 34 # output: report(0xfffffffd);\n 35 # output: report(0x00000004);\n 36 # output: report(0x00000000);\n 37 # output: report(0x00000000);\n 38 # output: report(0x00000000);\n 39 # output: \n 40 # output: report(0xfffffff5);\n 41 # output: report(0xfffffffd);\n 42 # output: report(0x00000003);\n 43 # output: report(0x00000000);\n 44 # output: report(0x00000000);\n 45 # output: report(0x00000000);\n 46 # output: \n 47 # output: report(0xfffffff4);\n 48 # output: report(0x00000003);\n 49 # output: report(0xfffffffc);\n 50 # output: report(0x00000000);\n 51 # output: report(0x00000000);\n 52 # output: report(0x00000000);\n 53 # output: \n 54 # output: report(0xfffffff5);\n 55 # output: report(0x00000003);\n 56 # output: report(0xfffffffd);\n 57 # output: report(0x00000000);\n 58 # output: report(0x00000000);\n 59 # output: report(0x00000000);\n 60 # output: \n 61 # output: report(0x0000000c);\n 62 # output: report(0xfffffffd);\n 63 # output: report(0xfffffffc);\n 64 # output: report(0x00000000);\n 65 # output: report(0x00000000);\n 66 # output: report(0x00000000);\n 67 # output: \n 68 # output: report(0x0000000b);\n 69 # output: report(0xfffffffd);\n 70 # output: report(0xfffffffd);\n 71 # output: report(0x00000000);\n 72 # output: report(0x00000000);\n 73 # output: report(0x00000000);\n 74 # output: \n 75 # output: report(0x0000000c);\n 76 # output: report(0x00000000);\n 77 # output: report(0xfffffffd);\n 78 # output: report(0x00000000);\n 79 # output: report(0x00000001);\n 80 # output: report(0x00000000);\n 81 # output: \n 82 # output: report(0xfffffff4);\n 83 # output: report(0x00000000);\n 84 # output: report(0xfffffffd);\n 85 # output: report(0x00000000);\n 86 # output: report(0x00000001);\n 87 # output: report(0x00000000);\n 88 # output: \n 89 # output: report(0x0000000c);\n 90 # output: report(0x00000000);\n 91 # output: report(0xfffffffd);\n 92 # output: report(0x00000000);\n 93 # output: report(0x00000001);\n 94 # output: report(0x00000001);\n 95 # output: \n 96 # output: report(0xfffffff4);\n 97 # output: report(0x00000000);\n 98 # output: report(0xfffffffd);\n 99 # output: report(0x00000000);\n 100 # output: report(0x00000001);\n 101 # output: report(0x00000001);\n 102 # output: \n 103 # output: report(0x0000000c);\n 104 # output: report(0x00000003);\n 105 # output: report(0x00000004);\n 106 # output: report(0x00000000);\n 107 # output: report(0x00000000);\n 108 # output: report(0x00000000);\n 109 # output: \n 110 # output: report(0x0000000b);\n 111 # output: report(0x00000003);\n 112 # output: report(0x00000003);\n 113 # output: report(0x00000000);\n 114 # output: report(0x00000000);\n 115 # output: report(0x00000000);\n 116 # output: \n 117 # output: report(0xfffffff4);\n 118 # output: report(0xfffffffd);\n 119 # output: report(0x00000000);\n 120 # output: report(0x00000000);\n 121 # output: report(0x00000000);\n 122 # output: report(0x00000000);\n 123 # output: \n 124 # output: report(0xfffffff5);\n 125 # output: report(0xfffffffd);\n 126 # output: report(0x00000000);\n 127 # output: report(0x00000000);\n 128 # output: report(0x00000000);\n 129 # output: report(0x00000000);\n 130 # output: \n 131 # output: report(0xfffffff4);\n 132 # output: report(0x00000003);\n 133 # output: report(0x55555551);\n 134 # output: report(0x00000000);\n 135 # output: report(0x00000000);\n 136 # output: report(0x00000000);\n 137 # output: \n 138 # output: report(0xfffffff5);\n 139 # output: report(0x00000003);\n 140 # output: report(0x55555551);\n 141 # output: report(0x00000000);\n 142 # output: report(0x00000000);\n 143 # output: report(0x00000000);\n 144 # output: \n 145 # output: report(0x0000000c);\n 146 # output: report(0xfffffffd);\n 147 # output: report(0x00000000);\n 148 # output: report(0x00000000);\n 149 # output: report(0x00000000);\n 150 # output: report(0x00000000);\n 151 # output: \n 152 # output: report(0x0000000b);\n 153 # output: report(0xfffffffd);\n 154 # output: report(0x00000000);\n 155 # output: report(0x00000000);\n 156 # output: report(0x00000000);\n 157 # output: report(0x00000000);\n 158 # output: \n 159 # output: report(0x0000000c);\n 160 # output: report(0x00000000);\n 161 # output: report(0x00000000);\n 162 # output: report(0x00000001);\n 163 # output: report(0x00000000);\n 164 # output: report(0x00000000);\n 165 # output: \n 166 # output: report(0xfffffff4);\n 167 # output: report(0x00000000);\n 168 # output: report(0x00000000);\n 169 # output: report(0x00000001);\n 170 # output: report(0x00000000);\n 171 # output: report(0x00000000);\n 172 # output: \n 173 # output: report(0x0000000c);\n 174 # output: report(0x00000000);\n 175 # output: report(0x00000000);\n 176 # output: report(0x00000001);\n 177 # output: report(0x00000000);\n 178 # output: report(0x00000001);\n 179 # output: \n 180 # output: report(0xfffffff4);\n 181 # output: report(0x00000000);\n 182 # output: report(0x00000000);\n 183 # output: report(0x00000001);\n 184 # output: report(0x00000000);\n 185 # output: report(0x00000001);\n 186 # output: \n 187 # output: exit(0)\n 188 189 #include "or1k-asm-test-helpers.h" 190 191 STANDARD_TEST_ENVIRONMENT 192 193 .section .exception_vectors 194 195 /* Range exception. */ 196 .org 0xb00 197 198 l.addi r1, r1, -EXCEPTION_STACK_SKIP_SIZE 199 PUSH r2 200 PUSH r3 201 /* Save the address of the instruction that caused the problem. */ 202 MOVE_FROM_SPR r2, SPR_EPCR_BASE 203 LOAD_IMMEDIATE r3, 0x15000000 /* Opcode for l.nop */ 204 l.sw 0(r2), r3 205 POP r3 206 POP r2 207 l.addi r1, r1, EXCEPTION_STACK_SKIP_SIZE 208 l.rfe 209 210 .section .text 211 start_tests: 212 PUSH LINK_REGISTER_R9 213 214 /* Test l.div */ 215 216 /* Divide two positive numbers and check rounding. Should set no 217 flags. */ 218 TEST_INST_I32_I32 l.div, 0x0000000c, 0x00000003 /* 12 / 3 = 4 */ 219 TEST_INST_I32_I32 l.div, 0x0000000b, 0x00000003 /* 11 / 3 = 3 */ 220 221 /* Divide two negative numbers and check rounding. Should set no 222 flags. */ 223 TEST_INST_I32_I32 l.div, 0xfffffff4, 0xfffffffd 224 TEST_INST_I32_I32 l.div, 0xfffffff5, 0xfffffffd 225 226 /* Divide a negative number by a positive number and check 227 rounding. Should set no flags. */ 228 TEST_INST_I32_I32 l.div, 0xfffffff4, 0x00000003 229 TEST_INST_I32_I32 l.div, 0xfffffff5, 0x00000003 230 231 /* Divide a positive number by a negative number and check 232 rounding. Should set no flags. */ 233 TEST_INST_I32_I32 l.div, 0x0000000c, 0xfffffffd 234 TEST_INST_I32_I32 l.div, 0x0000000b, 0xfffffffd 235 236 /* Divide by zero. This will set the overflow flag. */ 237 TEST_INST_I32_I32 l.div, 0x0000000c, 0x00000000 238 TEST_INST_I32_I32 l.div, 0xfffffff4, 0x00000000 239 240 /* Check that range exceptions are triggered. */ 241 242 SET_SPR_SR_FLAGS SPR_SR_OVE, r2, r3 243 244 /* Divide by zero. This will set the overflow flag and trigger an 245 exception. */ 246 TEST_INST_I32_I32 l.div, 0x0000000c, 0x00000000 247 TEST_INST_I32_I32 l.div, 0xfffffff4, 0x00000000 248 249 CLEAR_SPR_SR_FLAGS SPR_SR_OVE, r2, r3 250 251 /* Test l.divu */ 252 253 /* Divide two positive numbers and check rounding. Should set no 254 flags. */ 255 TEST_INST_I32_I32 l.divu, 0x0000000c, 0x00000003 256 TEST_INST_I32_I32 l.divu, 0x0000000b, 0x00000003 257 258 /* Divide two numbers that would be negative under 2's complement 259 and check rounding. Should set no flags. */ 260 TEST_INST_I32_I32 l.divu, 0xfffffff4, 0xfffffffd 261 TEST_INST_I32_I32 l.divu, 0xfffffff5, 0xfffffffd 262 263 /* Divide a number that would be negative under 2's complement by a 264 number that would be positive under 2's complement and check 265 rounding. This should set no flags. */ 266 TEST_INST_I32_I32 l.divu, 0xfffffff4, 0x00000003 267 TEST_INST_I32_I32 l.divu, 0xfffffff5, 0x00000003 268 269 /* Divide a number that would be positive under 2's complement by a 270 number that would be negative under 2's complement and check 271 rounding. This should set no flags. */ 272 TEST_INST_I32_I32 l.divu, 0x0000000c, 0xfffffffd 273 TEST_INST_I32_I32 l.divu, 0x0000000b, 0xfffffffd 274 275 /* Divide by zero. This will set the carry flag. */ 276 TEST_INST_I32_I32 l.divu, 0x0000000c, 0x00000000 277 TEST_INST_I32_I32 l.divu, 0xfffffff4, 0x00000000 278 279 /* Check that range exceptions are triggered. */ 280 281 SET_SPR_SR_FLAGS SPR_SR_OVE, r2, r3 282 283 /* Divide by zero. This will set the carry flag and trigger an 284 exception. */ 285 TEST_INST_I32_I32 l.divu, 0x0000000c, 0x00000000 286 TEST_INST_I32_I32 l.divu, 0xfffffff4, 0x00000000 287 288 CLEAR_SPR_SR_FLAGS SPR_SR_OVE, r2, r3 289 290 POP LINK_REGISTER_R9 291 RETURN_TO_LINK_REGISTER_R9 292
Indexes created Fri Apr 10 00:22:58 UTC 2026