projects / thirdparty / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 702d582e PG |
1 | /* Tests the multiply instructions. |
| 2 | ||
| e2882c85 | 3 | Copyright (C) 2017-2018 Free Software Foundation, Inc. |
| 702d582e PG |
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(0x00000002);\n | |
| 20 | # output: report(0x00000003);\n | |
| 21 | # output: report(0x00000006);\n | |
| 22 | # output: report(0x00000000);\n | |
| 23 | # output: report(0x00000000);\n | |
| 24 | # output: report(0x00000000);\n | |
| 25 | # output: \n | |
| 26 | # output: report(0x00008001);\n | |
| 27 | # output: report(0x0000fffe);\n | |
| 28 | # output: report(0x7ffffffe);\n | |
| 29 | # output: report(0x00000000);\n | |
| 30 | # output: report(0x00000000);\n | |
| 31 | # output: report(0x00000000);\n | |
| 32 | # output: \n | |
| 33 | # output: report(0x00008000);\n | |
| 34 | # output: report(0x00010000);\n | |
| 35 | # output: report(0x80000000);\n | |
| 36 | # output: report(0x00000000);\n | |
| 37 | # output: report(0x00000001);\n | |
| 38 | # output: report(0x00000000);\n | |
| 39 | # output: \n | |
| 40 | # output: report(0x00010000);\n | |
| 41 | # output: report(0x00010000);\n | |
| 42 | # output: report(0x00000000);\n | |
| 43 | # output: report(0x00000001);\n | |
| 44 | # output: report(0x00000001);\n | |
| 45 | # output: report(0x00000000);\n | |
| 46 | # output: \n | |
| 47 | # output: report(0xfffffffe);\n | |
| 48 | # output: report(0xfffffffd);\n | |
| 49 | # output: report(0x00000006);\n | |
| 50 | # output: report(0x00000001);\n | |
| 51 | # output: report(0x00000000);\n | |
| 52 | # output: report(0x00000000);\n | |
| 53 | # output: \n | |
| 54 | # output: report(0xffff7fff);\n | |
| 55 | # output: report(0xffff0002);\n | |
| 56 | # output: report(0x7ffffffe);\n | |
| 57 | # output: report(0x00000001);\n | |
| 58 | # output: report(0x00000000);\n | |
| 59 | # output: report(0x00000000);\n | |
| 60 | # output: \n | |
| 61 | # output: report(0xffff7fff);\n | |
| 62 | # output: report(0xffff0000);\n | |
| 63 | # output: report(0x80010000);\n | |
| 64 | # output: report(0x00000001);\n | |
| 65 | # output: report(0x00000001);\n | |
| 66 | # output: report(0x00000000);\n | |
| 67 | # output: \n | |
| 68 | # output: report(0xffff0000);\n | |
| 69 | # output: report(0xfffeffff);\n | |
| 70 | # output: report(0x00010000);\n | |
| 71 | # output: report(0x00000001);\n | |
| 72 | # output: report(0x00000001);\n | |
| 73 | # output: report(0x00000000);\n | |
| 74 | # output: \n | |
| 75 | # output: report(0x00000002);\n | |
| 76 | # output: report(0xfffffffd);\n | |
| 77 | # output: report(0xfffffffa);\n | |
| 78 | # output: report(0x00000001);\n | |
| 79 | # output: report(0x00000000);\n | |
| 80 | # output: report(0x00000000);\n | |
| 81 | # output: \n | |
| 82 | # output: report(0xffff8000);\n | |
| 83 | # output: report(0x00010000);\n | |
| 84 | # output: report(0x80000000);\n | |
| 85 | # output: report(0x00000001);\n | |
| 86 | # output: report(0x00000000);\n | |
| 87 | # output: report(0x00000000);\n | |
| 88 | # output: \n | |
| 89 | # output: report(0xffff7fff);\n | |
| 90 | # output: report(0x00010000);\n | |
| 91 | # output: report(0x7fff0000);\n | |
| 92 | # output: report(0x00000001);\n | |
| 93 | # output: report(0x00000001);\n | |
| 94 | # output: report(0x00000000);\n | |
| 95 | # output: \n | |
| 96 | # output: report(0x80000000);\n | |
| 97 | # output: report(0x00000001);\n | |
| 98 | # output: report(0x80000000);\n | |
| 99 | # output: report(0x00000000);\n | |
| 100 | # output: report(0x00000000);\n | |
| 101 | # output: report(0x00000000);\n | |
| 102 | # output: \n | |
| 103 | # output: report(0x00008000);\n | |
| 104 | # output: report(0x00010000);\n | |
| 105 | # output: report(0x80000000);\n | |
| 106 | # output: report(0x00000000);\n | |
| 107 | # output: report(0x00000001);\n | |
| 108 | # output: report(0x00000001);\n | |
| 109 | # output: \n | |
| 110 | # output: report(0x00000002);\n | |
| 111 | # output: report(0xfffffffd);\n | |
| 112 | # output: report(0xfffffffa);\n | |
| 113 | # output: report(0x00000001);\n | |
| 114 | # output: report(0x00000000);\n | |
| 115 | # output: report(0x00000000);\n | |
| 116 | # output: \n | |
| 117 | # output: report(0xffff7fff);\n | |
| 118 | # output: report(0xffff0000);\n | |
| 119 | # output: report(0x80010000);\n | |
| 120 | # output: report(0x00000001);\n | |
| 121 | # output: report(0x00000001);\n | |
| 122 | # output: report(0x00000001);\n | |
| 123 | # output: \n | |
| 124 | # output: report(0x00000002);\n | |
| 125 | # output: report(0x00000003);\n | |
| 126 | # output: report(0x00000006);\n | |
| 127 | # output: report(0x00000000);\n | |
| 128 | # output: report(0x00000000);\n | |
| 129 | # output: report(0x00000000);\n | |
| 130 | # output: \n | |
| 131 | # output: report(0x00010002);\n | |
| 132 | # output: report(0x00007fff);\n | |
| 133 | # output: report(0x7ffffffe);\n | |
| 134 | # output: report(0x00000000);\n | |
| 135 | # output: report(0x00000000);\n | |
| 136 | # output: report(0x00000000);\n | |
| 137 | # output: \n | |
| 138 | # output: report(0x00020000);\n | |
| 139 | # output: report(0x00004000);\n | |
| 140 | # output: report(0x80000000);\n | |
| 141 | # output: report(0x00000000);\n | |
| 142 | # output: report(0x00000001);\n | |
| 143 | # output: report(0x00000000);\n | |
| 144 | # output: \n | |
| 145 | # output: report(0x00040000);\n | |
| 146 | # output: report(0x00004000);\n | |
| 147 | # output: report(0x00000000);\n | |
| 148 | # output: report(0x00000001);\n | |
| 149 | # output: report(0x00000001);\n | |
| 150 | # output: report(0x00000000);\n | |
| 151 | # output: \n | |
| 152 | # output: report(0xfffffffe);\n | |
| 153 | # output: report(0x0000fffd);\n | |
| 154 | # output: report(0x00000006);\n | |
| 155 | # output: report(0x00000001);\n | |
| 156 | # output: report(0x00000000);\n | |
| 157 | # output: report(0x00000000);\n | |
| 158 | # output: \n | |
| 159 | # output: report(0xfffefffe);\n | |
| 160 | # output: report(0x00008001);\n | |
| 161 | # output: report(0x7ffffffe);\n | |
| 162 | # output: report(0x00000001);\n | |
| 163 | # output: report(0x00000000);\n | |
| 164 | # output: report(0x00000000);\n | |
| 165 | # output: \n | |
| 166 | # output: report(0xfffe0000);\n | |
| 167 | # output: report(0x0000bfff);\n | |
| 168 | # output: report(0x80020000);\n | |
| 169 | # output: report(0x00000001);\n | |
| 170 | # output: report(0x00000001);\n | |
| 171 | # output: report(0x00000000);\n | |
| 172 | # output: \n | |
| 173 | # output: report(0xfffdfffe);\n | |
| 174 | # output: report(0x00008000);\n | |
| 175 | # output: report(0x00010000);\n | |
| 176 | # output: report(0x00000001);\n | |
| 177 | # output: report(0x00000001);\n | |
| 178 | # output: report(0x00000000);\n | |
| 179 | # output: \n | |
| 180 | # output: report(0x00000002);\n | |
| 181 | # output: report(0x0000fffd);\n | |
| 182 | # output: report(0xfffffffa);\n | |
| 183 | # output: report(0x00000001);\n | |
| 184 | # output: report(0x00000000);\n | |
| 185 | # output: report(0x00000000);\n | |
| 186 | # output: \n | |
| 187 | # output: report(0x00010000);\n | |
| 188 | # output: report(0x00008000);\n | |
| 189 | # output: report(0x80000000);\n | |
| 190 | # output: report(0x00000001);\n | |
| 191 | # output: report(0x00000000);\n | |
| 192 | # output: report(0x00000000);\n | |
| 193 | # output: \n | |
| 194 | # output: report(0xfffdfffc);\n | |
| 195 | # output: report(0x00004000);\n | |
| 196 | # output: report(0x7fff0000);\n | |
| 197 | # output: report(0x00000001);\n | |
| 198 | # output: report(0x00000001);\n | |
| 199 | # output: report(0x00000000);\n | |
| 200 | # output: \n | |
| 201 | # output: report(0x80000000);\n | |
| 202 | # output: report(0x00000001);\n | |
| 203 | # output: report(0x80000000);\n | |
| 204 | # output: report(0x00000000);\n | |
| 205 | # output: report(0x00000000);\n | |
| 206 | # output: report(0x00000000);\n | |
| 207 | # output: \n | |
| 208 | # output: report(0x00020000);\n | |
| 209 | # output: report(0x00004000);\n | |
| 210 | # output: report(0x80000000);\n | |
| 211 | # output: report(0x00000000);\n | |
| 212 | # output: report(0x00000001);\n | |
| 213 | # output: report(0x00000001);\n | |
| 214 | # output: \n | |
| 215 | # output: report(0xfffffffe);\n | |
| 216 | # output: report(0x0000fffd);\n | |
| 217 | # output: report(0x00000006);\n | |
| 218 | # output: report(0x00000001);\n | |
| 219 | # output: report(0x00000000);\n | |
| 220 | # output: report(0x00000000);\n | |
| 221 | # output: \n | |
| 222 | # output: report(0xfffdfffe);\n | |
| 223 | # output: report(0x00008000);\n | |
| 224 | # output: report(0x00010000);\n | |
| 225 | # output: report(0x00000001);\n | |
| 226 | # output: report(0x00000001);\n | |
| 227 | # output: report(0x00000001);\n | |
| 228 | # output: \n | |
| 229 | # output: report(0x00000002);\n | |
| 230 | # output: report(0x00000003);\n | |
| 231 | # output: report(0x00000006);\n | |
| 232 | # output: report(0x00000000);\n | |
| 233 | # output: report(0x00000000);\n | |
| 234 | # output: report(0x00000000);\n | |
| 235 | # output: \n | |
| 236 | # output: report(0x00008001);\n | |
| 237 | # output: report(0x0000fffe);\n | |
| 238 | # output: report(0x7ffffffe);\n | |
| 239 | # output: report(0x00000000);\n | |
| 240 | # output: report(0x00000000);\n | |
| 241 | # output: report(0x00000000);\n | |
| 242 | # output: \n | |
| 243 | # output: report(0x00008000);\n | |
| 244 | # output: report(0x00010000);\n | |
| 245 | # output: report(0x80000000);\n | |
| 246 | # output: report(0x00000000);\n | |
| 247 | # output: report(0x00000000);\n | |
| 248 | # output: report(0x00000000);\n | |
| 249 | # output: \n | |
| 250 | # output: report(0x00010000);\n | |
| 251 | # output: report(0x00010000);\n | |
| 252 | # output: report(0x00000000);\n | |
| 253 | # output: report(0x00000001);\n | |
| 254 | # output: report(0x00000000);\n | |
| 255 | # output: report(0x00000000);\n | |
| 256 | # output: \n | |
| 257 | # output: report(0xfffffffe);\n | |
| 258 | # output: report(0xfffffffd);\n | |
| 259 | # output: report(0x00000006);\n | |
| 260 | # output: report(0x00000001);\n | |
| 261 | # output: report(0x00000000);\n | |
| 262 | # output: report(0x00000000);\n | |
| 263 | # output: \n | |
| 264 | # output: report(0xffff7fff);\n | |
| 265 | # output: report(0xffff0002);\n | |
| 266 | # output: report(0x7ffffffe);\n | |
| 267 | # output: report(0x00000001);\n | |
| 268 | # output: report(0x00000000);\n | |
| 269 | # output: report(0x00000000);\n | |
| 270 | # output: \n | |
| 271 | # output: report(0xffff7fff);\n | |
| 272 | # output: report(0xffff0000);\n | |
| 273 | # output: report(0x80010000);\n | |
| 274 | # output: report(0x00000001);\n | |
| 275 | # output: report(0x00000000);\n | |
| 276 | # output: report(0x00000000);\n | |
| 277 | # output: \n | |
| 278 | # output: report(0xffff0000);\n | |
| 279 | # output: report(0xfffeffff);\n | |
| 280 | # output: report(0x00010000);\n | |
| 281 | # output: report(0x00000001);\n | |
| 282 | # output: report(0x00000000);\n | |
| 283 | # output: report(0x00000000);\n | |
| 284 | # output: \n | |
| 285 | # output: report(0x00000002);\n | |
| 286 | # output: report(0xfffffffd);\n | |
| 287 | # output: report(0xfffffffa);\n | |
| 288 | # output: report(0x00000001);\n | |
| 289 | # output: report(0x00000000);\n | |
| 290 | # output: report(0x00000000);\n | |
| 291 | # output: \n | |
| 292 | # output: report(0xffff8000);\n | |
| 293 | # output: report(0x00010000);\n | |
| 294 | # output: report(0x80000000);\n | |
| 295 | # output: report(0x00000001);\n | |
| 296 | # output: report(0x00000000);\n | |
| 297 | # output: report(0x00000000);\n | |
| 298 | # output: \n | |
| 299 | # output: report(0xffff7fff);\n | |
| 300 | # output: report(0x00010000);\n | |
| 301 | # output: report(0x7fff0000);\n | |
| 302 | # output: report(0x00000001);\n | |
| 303 | # output: report(0x00000000);\n | |
| 304 | # output: report(0x00000000);\n | |
| 305 | # output: \n | |
| 306 | # output: report(0x80000000);\n | |
| 307 | # output: report(0x00000001);\n | |
| 308 | # output: report(0x80000000);\n | |
| 309 | # output: report(0x00000000);\n | |
| 310 | # output: report(0x00000000);\n | |
| 311 | # output: report(0x00000000);\n | |
| 312 | # output: \n | |
| 313 | # output: report(0x00008000);\n | |
| 314 | # output: report(0x00010000);\n | |
| 315 | # output: report(0x80000000);\n | |
| 316 | # output: report(0x00000000);\n | |
| 317 | # output: report(0x00000000);\n | |
| 318 | # output: report(0x00000000);\n | |
| 319 | # output: \n | |
| 320 | # output: report(0x00000002);\n | |
| 321 | # output: report(0xfffffffd);\n | |
| 322 | # output: report(0xfffffffa);\n | |
| 323 | # output: report(0x00000001);\n | |
| 324 | # output: report(0x00000000);\n | |
| 325 | # output: report(0x00000000);\n | |
| 326 | # output: \n | |
| 327 | # output: report(0xffff7fff);\n | |
| 328 | # output: report(0xffff0000);\n | |
| 329 | # output: report(0x80010000);\n | |
| 330 | # output: report(0x00000001);\n | |
| 331 | # output: report(0x00000000);\n | |
| 332 | # output: report(0x00000000);\n | |
| 333 | # output: \n | |
| 334 | # output: exit(0)\n | |
| 335 | ||
| 336 | #include "or1k-asm-test-helpers.h" | |
| 337 | ||
| 338 | STANDARD_TEST_ENVIRONMENT | |
| 339 | ||
| 340 | .section .exception_vectors | |
| 341 | ||
| 342 | /* Range exception. */ | |
| 343 | .org 0xb00 | |
| 344 | ||
| 345 | /* The handling is a bit dubious at present. We just patch the | |
| 346 | instruction with l.nop and restart. This will go wrong in branch | |
| 347 | delay slots, but we are not testing that here. */ | |
| 348 | l.addi r1, r1, -EXCEPTION_STACK_SKIP_SIZE | |
| 349 | PUSH r2 | |
| 350 | PUSH r3 | |
| 351 | /* Save the address of the instruction that caused the problem. */ | |
| 352 | MOVE_FROM_SPR r2, SPR_EPCR_BASE | |
| 353 | LOAD_IMMEDIATE r3, 0x15000000 /* Opcode for l.nop */ | |
| 354 | l.sw 0(r2), r3 | |
| 355 | POP r3 | |
| 356 | POP r2 | |
| 357 | l.addi r1, r1, EXCEPTION_STACK_SKIP_SIZE | |
| 358 | l.rfe | |
| 359 | ||
| 360 | .section .text | |
| 361 | start_tests: | |
| 362 | PUSH LINK_REGISTER_R9 | |
| 363 | ||
| 364 | /* Test l.mul */ | |
| 365 | ||
| 366 | /* Multiply two small positive numbers. This should set no flags. | |
| 367 | */ | |
| 368 | TEST_INST_I32_I32 l.mul, 0x00000002, 0x00000003 | |
| 369 | ||
| 370 | /* Multiply two quite large positive numbers. This should set no | |
| 371 | flags */ | |
| 372 | TEST_INST_I32_I32 l.mul, 0x00008001, 0x0000fffe | |
| 373 | ||
| 374 | /* Multiply two slightly too large positive numbers. This should | |
| 375 | set the overflow, but not the carry flag . */ | |
| 376 | TEST_INST_I32_I32 l.mul, 0x00008000, 0x00010000 | |
| 377 | ||
| 378 | /* Multiply two large positive numbers. This should set both the | |
| 379 | carry and overflow flags (even though the result is not a | |
| 380 | negative number. */ | |
| 381 | TEST_INST_I32_I32 l.mul, 0x00010000, 0x00010000 | |
| 382 | ||
| 383 | /* Multiply two small negative numbers. This will set the carry | |
| 384 | flag, but not the overflow flag. */ | |
| 385 | TEST_INST_I32_I32 l.mul, 0xfffffffe, 0xfffffffd | |
| 386 | ||
| 387 | /* Multiply two quite large negative numbers. This will set the | |
| 388 | carry flag, but not the overflow flag. */ | |
| 389 | TEST_INST_I32_I32 l.mul, 0xffff7fff, 0xffff0002 | |
| 390 | ||
| 391 | /* Multiply two slightly too large negative numbers. This should | |
| 392 | set both the overflow, and the carry flags */ | |
| 393 | TEST_INST_I32_I32 l.mul, 0xffff7fff, 0xffff0000 | |
| 394 | ||
| 395 | /* Multiply two large negative numbers. This should set the | |
| 396 | both the carry and overflow flags (even though the result is a | |
| 397 | positive number. */ | |
| 398 | TEST_INST_I32_I32 l.mul, 0xffff0000, 0xfffeffff | |
| 399 | ||
| 400 | /* Multiply one small negative number and one small positive | |
| 401 | number. This will set the carry flag, but not the overflow | |
| 402 | flag. */ | |
| 403 | TEST_INST_I32_I32 l.mul, 0x00000002, 0xfffffffd | |
| 404 | ||
| 405 | /* Multiply one quite large negative number and one quite large | |
| 406 | positive number. This will set the carry, but not the | |
| 407 | overflow flag. */ | |
| 408 | TEST_INST_I32_I32 l.mul, 0xffff8000, 0x00010000 | |
| 409 | ||
| 410 | /* Multiply one slightly too large negative number and one slightly | |
| 411 | too large positive number. This should set both the carry and | |
| 412 | overflow flags. */ | |
| 413 | TEST_INST_I32_I32 l.mul, 0xffff7fff, 0x00010000 | |
| 414 | ||
| 415 | /* Multiply the largest negative number by positive unity. This | |
| 416 | should set neither carry, nor overflow flag. */ | |
| 417 | TEST_INST_I32_I32 l.mul, 0x80000000, 0x00000001 | |
| 418 | ||
| 419 | /* Check that range exceptions are triggered. */ | |
| 420 | ||
| 421 | SET_SPR_SR_FLAGS SPR_SR_OVE, r2, r3 | |
| 422 | ||
| 423 | /* Check that an overflow alone causes a RANGE Exception. */ | |
| 424 | TEST_INST_I32_I32 l.mul, 0x00008000, 0x00010000 | |
| 425 | ||
| 426 | /* Check that a carry alone does not cause a RANGE Exception. */ | |
| 427 | TEST_INST_I32_I32 l.mul, 0x00000002, 0xfffffffd | |
| 428 | ||
| 429 | /* Check that carry and overflow together cause an exception. */ | |
| 430 | TEST_INST_I32_I32 l.mul, 0xffff7fff, 0xffff0000 | |
| 431 | ||
| 432 | CLEAR_SPR_SR_FLAGS SPR_SR_OVE, r2, r3 | |
| 433 | ||
| 434 | ||
| 435 | /* Test l.muli */ | |
| 436 | ||
| 437 | /* Multiply two small positive numbers. This should set no flags. */ | |
| 438 | TEST_INST_I32_I16 l.muli, 0x00000002, 0x0003 | |
| 439 | ||
| 440 | /* Multiply two quite large positive numbers. This should set no | |
| 441 | flags */ | |
| 442 | TEST_INST_I32_I16 l.muli, 0x00010002, 0x7fff | |
| 443 | ||
| 444 | /* Multiply two slightly too large positive numbers. This should | |
| 445 | set the overflow, but not the carry flag. */ | |
| 446 | TEST_INST_I32_I16 l.muli, 0x00020000, 0x4000 | |
| 447 | ||
| 448 | /* Multiply two large positive numbers. This should set both the | |
| 449 | carry and overflow flags (even though the result is not a | |
| 450 | negative number. */ | |
| 451 | TEST_INST_I32_I16 l.muli, 0x00040000, 0x4000 | |
| 452 | ||
| 453 | /* Multiply two small negative numbers. This should set the | |
| 454 | carry flag, but not the overflow flag. */ | |
| 455 | TEST_INST_I32_I16 l.muli, 0xfffffffe, 0xfffd | |
| 456 | ||
| 457 | /* Multiply two quite large negative numbers. This will set the | |
| 458 | carry, but not the overflow flag. */ | |
| 459 | TEST_INST_I32_I16 l.muli, 0xfffefffe, 0x8001 | |
| 460 | ||
| 461 | /* Multiply two slightly too large negative numbers. This should | |
| 462 | set both the overflow, and the carry flags */ | |
| 463 | TEST_INST_I32_I16 l.muli, 0xfffe0000, 0xbfff | |
| 464 | ||
| 465 | /* Multiply two large negative numbers. This should set the both | |
| 466 | the carry and overflow flags (even though the result is a | |
| 467 | positive number. */ | |
| 468 | TEST_INST_I32_I16 l.muli, 0xfffdfffe, 0x8000 | |
| 469 | ||
| 470 | /* Multiply one small negative number and one small positive | |
| 471 | number. This will set the carry flag, but not the overflow | |
| 472 | flag. */ | |
| 473 | TEST_INST_I32_I16 l.muli, 0x00000002, 0xfffd | |
| 474 | ||
| 475 | /* Multiply one quite large negative number and one quite large | |
| 476 | positive number. This will set the carry flag, but not the | |
| 477 | overflow flag. */ | |
| 478 | TEST_INST_I32_I16 l.muli, 0x00010000, 0x8000 | |
| 479 | ||
| 480 | /* Multiply one slightly too large negative number and one slightly | |
| 481 | too large positive number. This should set both the carry and | |
| 482 | overflow flags. */ | |
| 483 | TEST_INST_I32_I16 l.muli, 0xfffdfffc, 0x4000 | |
| 484 | ||
| 485 | /* Multiply the largest negative number by positive unity. Should | |
| 486 | set neither carry, nor overflow flag. */ | |
| 487 | TEST_INST_I32_I16 l.muli, 0x80000000, 0x0001 | |
| 488 | ||
| 489 | /* Check that range exceptions are triggered. */ | |
| 490 | ||
| 491 | SET_SPR_SR_FLAGS SPR_SR_OVE, r2, r3 | |
| 492 | ||
| 493 | /* Check that an overflow alone causes a RANGE Exception. */ | |
| 494 | TEST_INST_I32_I16 l.muli, 0x00020000, 0x4000 | |
| 495 | ||
| 496 | /* Check that a carry alone does not cause a RANGE Exception. */ | |
| 497 | TEST_INST_I32_I16 l.muli, 0xfffffffe, 0xfffd | |
| 498 | ||
| 499 | /* Check that carry and overflow together cause an exception. */ | |
| 500 | TEST_INST_I32_I16 l.muli, 0xfffdfffe, 0x8000 | |
| 501 | ||
| 502 | CLEAR_SPR_SR_FLAGS SPR_SR_OVE, r2, r3 | |
| 503 | ||
| 504 | /* Test l.mulu */ | |
| 505 | ||
| 506 | /* Multiply two small positive numbers. This should set no flags. */ | |
| 507 | TEST_INST_I32_I32 l.mulu, 0x00000002, 0x00000003 | |
| 508 | ||
| 509 | /* Multiply two quite large positive numbers. This should set no | |
| 510 | flags. */ | |
| 511 | TEST_INST_I32_I32 l.mulu, 0x00008001, 0x0000fffe | |
| 512 | ||
| 513 | /* Multiply two slightly too large positive numbers. This will set | |
| 514 | no flags. */ | |
| 515 | TEST_INST_I32_I32 l.mulu, 0x00008000, 0x00010000 | |
| 516 | ||
| 517 | /* Multiply two large positive numbers. This will set the overflow | |
| 518 | flag. */ | |
| 519 | TEST_INST_I32_I32 l.mulu, 0x00010000, 0x00010000 | |
| 520 | ||
| 521 | /* Multiply two small negative numbers. This will set the | |
| 522 | carry flag, but not the overflow flag. */ | |
| 523 | TEST_INST_I32_I32 l.mulu, 0xfffffffe, 0xfffffffd | |
| 524 | ||
| 525 | /* Multiply two quite large negative numbers. This will set the | |
| 526 | carry flag, but not the overflow flag. */ | |
| 527 | TEST_INST_I32_I32 l.mulu, 0xffff7fff, 0xffff0002 | |
| 528 | ||
| 529 | /* Multiply two slightly too large negative numbers. This will set | |
| 530 | the carry flag, and not the overflow flag */ | |
| 531 | TEST_INST_I32_I32 l.mulu, 0xffff7fff, 0xffff0000 | |
| 532 | ||
| 533 | /* Multiply two large negative numbers. This will set the both the | |
| 534 | carry flag (even though the result is a positive number.) */ | |
| 535 | TEST_INST_I32_I32 l.mulu, 0xffff0000, 0xfffeffff | |
| 536 | ||
| 537 | /* Multiply one small negative number and one small positive | |
| 538 | number. This will set the carry flag, but not the overflow | |
| 539 | flag. */ | |
| 540 | TEST_INST_I32_I32 l.mulu, 0x00000002, 0xfffffffd | |
| 541 | ||
| 542 | /* Multiply one quite large negative number and one quite large | |
| 543 | positive number. This will set the carry flag, but not the | |
| 544 | overflow flag. */ | |
| 545 | TEST_INST_I32_I32 l.mulu, 0xffff8000, 0x00010000 | |
| 546 | ||
| 547 | /* Multiply one slightly too large negative number and one slightly | |
| 548 | too large positive number. This will set the carry flag, but | |
| 549 | not the overflow flag. */ | |
| 550 | TEST_INST_I32_I32 l.mulu, 0xffff7fff, 0x00010000 | |
| 551 | ||
| 552 | /* Multiply the largest negative number by positive unity. Should | |
| 553 | set neither carry, nor overflow flag. */ | |
| 554 | TEST_INST_I32_I32 l.mulu, 0x80000000, 0x00000001 | |
| 555 | ||
| 556 | /* Check that range exceptions are never triggered. */ | |
| 557 | ||
| 558 | SET_SPR_SR_FLAGS SPR_SR_OVE, r2, r3 | |
| 559 | ||
| 560 | /* Check that what would cause an overflow alone in 2's complement | |
| 561 | does not cause a RANGE Exception. */ | |
| 562 | TEST_INST_I32_I32 l.mulu, 0x00008000, 0x00010000 | |
| 563 | ||
| 564 | /* Check that a carry alone does not cause a RANGE Exception. */ | |
| 565 | TEST_INST_I32_I32 l.mulu, 0x00000002, 0xfffffffd | |
| 566 | ||
| 567 | /* Check that what would cause an overflow and carry in 2's | |
| 568 | complement does not cause a RANGE Exception. */ | |
| 569 | TEST_INST_I32_I32 l.mulu, 0xffff7fff, 0xffff0000 | |
| 570 | ||
| 571 | CLEAR_SPR_SR_FLAGS SPR_SR_OVE, r2, r3 | |
| 572 | ||
| 573 | POP LINK_REGISTER_R9 | |
| 574 | RETURN_TO_LINK_REGISTER_R9 |