| 1 | /* |
| 2 | * Loongson Multimedia Instruction emulation helpers for QEMU. |
| 3 | * |
| 4 | * Copyright (c) 2011 Richard Henderson <rth@twiddle.net> |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2.1 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| 18 | */ |
| 19 | |
| 20 | #include "qemu/osdep.h" |
| 21 | #include "cpu.h" |
| 22 | #include "exec/helper-proto.h" |
| 23 | |
| 24 | /* |
| 25 | * If the byte ordering doesn't matter, i.e. all columns are treated |
| 26 | * identically, then this union can be used directly. If byte ordering |
| 27 | * does matter, we generally ignore dumping to memory. |
| 28 | */ |
| 29 | typedef union { |
| 30 | uint8_t ub[8]; |
| 31 | int8_t sb[8]; |
| 32 | uint16_t uh[4]; |
| 33 | int16_t sh[4]; |
| 34 | uint32_t uw[2]; |
| 35 | int32_t sw[2]; |
| 36 | uint64_t d; |
| 37 | } LMIValue; |
| 38 | |
| 39 | /* Some byte ordering issues can be mitigated by XORing in the following. */ |
| 40 | #if HOST_BIG_ENDIAN |
| 41 | # define BYTE_ORDER_XOR(N) N |
| 42 | #else |
| 43 | # define BYTE_ORDER_XOR(N) 0 |
| 44 | #endif |
| 45 | |
| 46 | #define SATSB(x) (x < -0x80 ? -0x80 : x > 0x7f ? 0x7f : x) |
| 47 | #define SATUB(x) (x > 0xff ? 0xff : x) |
| 48 | |
| 49 | #define SATSH(x) (x < -0x8000 ? -0x8000 : x > 0x7fff ? 0x7fff : x) |
| 50 | #define SATUH(x) (x > 0xffff ? 0xffff : x) |
| 51 | |
| 52 | #define SATSW(x) \ |
| 53 | (x < -0x80000000ll ? -0x80000000ll : x > 0x7fffffff ? 0x7fffffff : x) |
| 54 | #define SATUW(x) (x > 0xffffffffull ? 0xffffffffull : x) |
| 55 | |
| 56 | uint64_t helper_paddsb(uint64_t fs, uint64_t ft) |
| 57 | { |
| 58 | LMIValue vs, vt; |
| 59 | unsigned int i; |
| 60 | |
| 61 | vs.d = fs; |
| 62 | vt.d = ft; |
| 63 | for (i = 0; i < 8; ++i) { |
| 64 | int r = vs.sb[i] + vt.sb[i]; |
| 65 | vs.sb[i] = SATSB(r); |
| 66 | } |
| 67 | return vs.d; |
| 68 | } |
| 69 | |
| 70 | uint64_t helper_paddusb(uint64_t fs, uint64_t ft) |
| 71 | { |
| 72 | LMIValue vs, vt; |
| 73 | unsigned int i; |
| 74 | |
| 75 | vs.d = fs; |
| 76 | vt.d = ft; |
| 77 | for (i = 0; i < 8; ++i) { |
| 78 | int r = vs.ub[i] + vt.ub[i]; |
| 79 | vs.ub[i] = SATUB(r); |
| 80 | } |
| 81 | return vs.d; |
| 82 | } |
| 83 | |
| 84 | uint64_t helper_paddsh(uint64_t fs, uint64_t ft) |
| 85 | { |
| 86 | LMIValue vs, vt; |
| 87 | unsigned int i; |
| 88 | |
| 89 | vs.d = fs; |
| 90 | vt.d = ft; |
| 91 | for (i = 0; i < 4; ++i) { |
| 92 | int r = vs.sh[i] + vt.sh[i]; |
| 93 | vs.sh[i] = SATSH(r); |
| 94 | } |
| 95 | return vs.d; |
| 96 | } |
| 97 | |
| 98 | uint64_t helper_paddush(uint64_t fs, uint64_t ft) |
| 99 | { |
| 100 | LMIValue vs, vt; |
| 101 | unsigned int i; |
| 102 | |
| 103 | vs.d = fs; |
| 104 | vt.d = ft; |
| 105 | for (i = 0; i < 4; ++i) { |
| 106 | int r = vs.uh[i] + vt.uh[i]; |
| 107 | vs.uh[i] = SATUH(r); |
| 108 | } |
| 109 | return vs.d; |
| 110 | } |
| 111 | |
| 112 | uint64_t helper_paddb(uint64_t fs, uint64_t ft) |
| 113 | { |
| 114 | LMIValue vs, vt; |
| 115 | unsigned int i; |
| 116 | |
| 117 | vs.d = fs; |
| 118 | vt.d = ft; |
| 119 | for (i = 0; i < 8; ++i) { |
| 120 | vs.ub[i] += vt.ub[i]; |
| 121 | } |
| 122 | return vs.d; |
| 123 | } |
| 124 | |
| 125 | uint64_t helper_paddh(uint64_t fs, uint64_t ft) |
| 126 | { |
| 127 | LMIValue vs, vt; |
| 128 | unsigned int i; |
| 129 | |
| 130 | vs.d = fs; |
| 131 | vt.d = ft; |
| 132 | for (i = 0; i < 4; ++i) { |
| 133 | vs.uh[i] += vt.uh[i]; |
| 134 | } |
| 135 | return vs.d; |
| 136 | } |
| 137 | |
| 138 | uint64_t helper_paddw(uint64_t fs, uint64_t ft) |
| 139 | { |
| 140 | LMIValue vs, vt; |
| 141 | unsigned int i; |
| 142 | |
| 143 | vs.d = fs; |
| 144 | vt.d = ft; |
| 145 | for (i = 0; i < 2; ++i) { |
| 146 | vs.uw[i] += vt.uw[i]; |
| 147 | } |
| 148 | return vs.d; |
| 149 | } |
| 150 | |
| 151 | uint64_t helper_psubsb(uint64_t fs, uint64_t ft) |
| 152 | { |
| 153 | LMIValue vs, vt; |
| 154 | unsigned int i; |
| 155 | |
| 156 | vs.d = fs; |
| 157 | vt.d = ft; |
| 158 | for (i = 0; i < 8; ++i) { |
| 159 | int r = vs.sb[i] - vt.sb[i]; |
| 160 | vs.sb[i] = SATSB(r); |
| 161 | } |
| 162 | return vs.d; |
| 163 | } |
| 164 | |
| 165 | uint64_t helper_psubusb(uint64_t fs, uint64_t ft) |
| 166 | { |
| 167 | LMIValue vs, vt; |
| 168 | unsigned int i; |
| 169 | |
| 170 | vs.d = fs; |
| 171 | vt.d = ft; |
| 172 | for (i = 0; i < 8; ++i) { |
| 173 | int r = vs.ub[i] - vt.ub[i]; |
| 174 | vs.ub[i] = SATUB(r); |
| 175 | } |
| 176 | return vs.d; |
| 177 | } |
| 178 | |
| 179 | uint64_t helper_psubsh(uint64_t fs, uint64_t ft) |
| 180 | { |
| 181 | LMIValue vs, vt; |
| 182 | unsigned int i; |
| 183 | |
| 184 | vs.d = fs; |
| 185 | vt.d = ft; |
| 186 | for (i = 0; i < 4; ++i) { |
| 187 | int r = vs.sh[i] - vt.sh[i]; |
| 188 | vs.sh[i] = SATSH(r); |
| 189 | } |
| 190 | return vs.d; |
| 191 | } |
| 192 | |
| 193 | uint64_t helper_psubush(uint64_t fs, uint64_t ft) |
| 194 | { |
| 195 | LMIValue vs, vt; |
| 196 | unsigned int i; |
| 197 | |
| 198 | vs.d = fs; |
| 199 | vt.d = ft; |
| 200 | for (i = 0; i < 4; ++i) { |
| 201 | int r = vs.uh[i] - vt.uh[i]; |
| 202 | vs.uh[i] = SATUH(r); |
| 203 | } |
| 204 | return vs.d; |
| 205 | } |
| 206 | |
| 207 | uint64_t helper_psubb(uint64_t fs, uint64_t ft) |
| 208 | { |
| 209 | LMIValue vs, vt; |
| 210 | unsigned int i; |
| 211 | |
| 212 | vs.d = fs; |
| 213 | vt.d = ft; |
| 214 | for (i = 0; i < 8; ++i) { |
| 215 | vs.ub[i] -= vt.ub[i]; |
| 216 | } |
| 217 | return vs.d; |
| 218 | } |
| 219 | |
| 220 | uint64_t helper_psubh(uint64_t fs, uint64_t ft) |
| 221 | { |
| 222 | LMIValue vs, vt; |
| 223 | unsigned int i; |
| 224 | |
| 225 | vs.d = fs; |
| 226 | vt.d = ft; |
| 227 | for (i = 0; i < 4; ++i) { |
| 228 | vs.uh[i] -= vt.uh[i]; |
| 229 | } |
| 230 | return vs.d; |
| 231 | } |
| 232 | |
| 233 | uint64_t helper_psubw(uint64_t fs, uint64_t ft) |
| 234 | { |
| 235 | LMIValue vs, vt; |
| 236 | unsigned int i; |
| 237 | |
| 238 | vs.d = fs; |
| 239 | vt.d = ft; |
| 240 | for (i = 0; i < 2; ++i) { |
| 241 | vs.uw[i] -= vt.uw[i]; |
| 242 | } |
| 243 | return vs.d; |
| 244 | } |
| 245 | |
| 246 | uint64_t helper_pshufh(uint64_t fs, uint64_t ft) |
| 247 | { |
| 248 | unsigned host = BYTE_ORDER_XOR(3); |
| 249 | LMIValue vd, vs; |
| 250 | unsigned i; |
| 251 | |
| 252 | vs.d = fs; |
| 253 | vd.d = 0; |
| 254 | for (i = 0; i < 4; i++, ft >>= 2) { |
| 255 | vd.uh[i ^ host] = vs.uh[(ft & 3) ^ host]; |
| 256 | } |
| 257 | return vd.d; |
| 258 | } |
| 259 | |
| 260 | uint64_t helper_packsswh(uint64_t fs, uint64_t ft) |
| 261 | { |
| 262 | uint64_t fd = 0; |
| 263 | int64_t tmp; |
| 264 | |
| 265 | tmp = (int32_t)(fs >> 0); |
| 266 | tmp = SATSH(tmp); |
| 267 | fd |= (tmp & 0xffff) << 0; |
| 268 | |
| 269 | tmp = (int32_t)(fs >> 32); |
| 270 | tmp = SATSH(tmp); |
| 271 | fd |= (tmp & 0xffff) << 16; |
| 272 | |
| 273 | tmp = (int32_t)(ft >> 0); |
| 274 | tmp = SATSH(tmp); |
| 275 | fd |= (tmp & 0xffff) << 32; |
| 276 | |
| 277 | tmp = (int32_t)(ft >> 32); |
| 278 | tmp = SATSH(tmp); |
| 279 | fd |= (tmp & 0xffff) << 48; |
| 280 | |
| 281 | return fd; |
| 282 | } |
| 283 | |
| 284 | uint64_t helper_packsshb(uint64_t fs, uint64_t ft) |
| 285 | { |
| 286 | uint64_t fd = 0; |
| 287 | unsigned int i; |
| 288 | |
| 289 | for (i = 0; i < 4; ++i) { |
| 290 | int16_t tmp = fs >> (i * 16); |
| 291 | tmp = SATSB(tmp); |
| 292 | fd |= (uint64_t)(tmp & 0xff) << (i * 8); |
| 293 | } |
| 294 | for (i = 0; i < 4; ++i) { |
| 295 | int16_t tmp = ft >> (i * 16); |
| 296 | tmp = SATSB(tmp); |
| 297 | fd |= (uint64_t)(tmp & 0xff) << (i * 8 + 32); |
| 298 | } |
| 299 | |
| 300 | return fd; |
| 301 | } |
| 302 | |
| 303 | uint64_t helper_packushb(uint64_t fs, uint64_t ft) |
| 304 | { |
| 305 | uint64_t fd = 0; |
| 306 | unsigned int i; |
| 307 | |
| 308 | for (i = 0; i < 4; ++i) { |
| 309 | int16_t tmp = fs >> (i * 16); |
| 310 | tmp = SATUB(tmp); |
| 311 | fd |= (uint64_t)(tmp & 0xff) << (i * 8); |
| 312 | } |
| 313 | for (i = 0; i < 4; ++i) { |
| 314 | int16_t tmp = ft >> (i * 16); |
| 315 | tmp = SATUB(tmp); |
| 316 | fd |= (uint64_t)(tmp & 0xff) << (i * 8 + 32); |
| 317 | } |
| 318 | |
| 319 | return fd; |
| 320 | } |
| 321 | |
| 322 | uint64_t helper_punpcklwd(uint64_t fs, uint64_t ft) |
| 323 | { |
| 324 | return (fs & 0xffffffff) | (ft << 32); |
| 325 | } |
| 326 | |
| 327 | uint64_t helper_punpckhwd(uint64_t fs, uint64_t ft) |
| 328 | { |
| 329 | return (fs >> 32) | (ft & ~0xffffffffull); |
| 330 | } |
| 331 | |
| 332 | uint64_t helper_punpcklhw(uint64_t fs, uint64_t ft) |
| 333 | { |
| 334 | unsigned host = BYTE_ORDER_XOR(3); |
| 335 | LMIValue vd, vs, vt; |
| 336 | |
| 337 | vs.d = fs; |
| 338 | vt.d = ft; |
| 339 | vd.uh[0 ^ host] = vs.uh[0 ^ host]; |
| 340 | vd.uh[1 ^ host] = vt.uh[0 ^ host]; |
| 341 | vd.uh[2 ^ host] = vs.uh[1 ^ host]; |
| 342 | vd.uh[3 ^ host] = vt.uh[1 ^ host]; |
| 343 | |
| 344 | return vd.d; |
| 345 | } |
| 346 | |
| 347 | uint64_t helper_punpckhhw(uint64_t fs, uint64_t ft) |
| 348 | { |
| 349 | unsigned host = BYTE_ORDER_XOR(3); |
| 350 | LMIValue vd, vs, vt; |
| 351 | |
| 352 | vs.d = fs; |
| 353 | vt.d = ft; |
| 354 | vd.uh[0 ^ host] = vs.uh[2 ^ host]; |
| 355 | vd.uh[1 ^ host] = vt.uh[2 ^ host]; |
| 356 | vd.uh[2 ^ host] = vs.uh[3 ^ host]; |
| 357 | vd.uh[3 ^ host] = vt.uh[3 ^ host]; |
| 358 | |
| 359 | return vd.d; |
| 360 | } |
| 361 | |
| 362 | uint64_t helper_punpcklbh(uint64_t fs, uint64_t ft) |
| 363 | { |
| 364 | unsigned host = BYTE_ORDER_XOR(7); |
| 365 | LMIValue vd, vs, vt; |
| 366 | |
| 367 | vs.d = fs; |
| 368 | vt.d = ft; |
| 369 | vd.ub[0 ^ host] = vs.ub[0 ^ host]; |
| 370 | vd.ub[1 ^ host] = vt.ub[0 ^ host]; |
| 371 | vd.ub[2 ^ host] = vs.ub[1 ^ host]; |
| 372 | vd.ub[3 ^ host] = vt.ub[1 ^ host]; |
| 373 | vd.ub[4 ^ host] = vs.ub[2 ^ host]; |
| 374 | vd.ub[5 ^ host] = vt.ub[2 ^ host]; |
| 375 | vd.ub[6 ^ host] = vs.ub[3 ^ host]; |
| 376 | vd.ub[7 ^ host] = vt.ub[3 ^ host]; |
| 377 | |
| 378 | return vd.d; |
| 379 | } |
| 380 | |
| 381 | uint64_t helper_punpckhbh(uint64_t fs, uint64_t ft) |
| 382 | { |
| 383 | unsigned host = BYTE_ORDER_XOR(7); |
| 384 | LMIValue vd, vs, vt; |
| 385 | |
| 386 | vs.d = fs; |
| 387 | vt.d = ft; |
| 388 | vd.ub[0 ^ host] = vs.ub[4 ^ host]; |
| 389 | vd.ub[1 ^ host] = vt.ub[4 ^ host]; |
| 390 | vd.ub[2 ^ host] = vs.ub[5 ^ host]; |
| 391 | vd.ub[3 ^ host] = vt.ub[5 ^ host]; |
| 392 | vd.ub[4 ^ host] = vs.ub[6 ^ host]; |
| 393 | vd.ub[5 ^ host] = vt.ub[6 ^ host]; |
| 394 | vd.ub[6 ^ host] = vs.ub[7 ^ host]; |
| 395 | vd.ub[7 ^ host] = vt.ub[7 ^ host]; |
| 396 | |
| 397 | return vd.d; |
| 398 | } |
| 399 | |
| 400 | uint64_t helper_pavgh(uint64_t fs, uint64_t ft) |
| 401 | { |
| 402 | LMIValue vs, vt; |
| 403 | unsigned i; |
| 404 | |
| 405 | vs.d = fs; |
| 406 | vt.d = ft; |
| 407 | for (i = 0; i < 4; i++) { |
| 408 | vs.uh[i] = (vs.uh[i] + vt.uh[i] + 1) >> 1; |
| 409 | } |
| 410 | return vs.d; |
| 411 | } |
| 412 | |
| 413 | uint64_t helper_pavgb(uint64_t fs, uint64_t ft) |
| 414 | { |
| 415 | LMIValue vs, vt; |
| 416 | unsigned i; |
| 417 | |
| 418 | vs.d = fs; |
| 419 | vt.d = ft; |
| 420 | for (i = 0; i < 8; i++) { |
| 421 | vs.ub[i] = (vs.ub[i] + vt.ub[i] + 1) >> 1; |
| 422 | } |
| 423 | return vs.d; |
| 424 | } |
| 425 | |
| 426 | uint64_t helper_pmaxsh(uint64_t fs, uint64_t ft) |
| 427 | { |
| 428 | LMIValue vs, vt; |
| 429 | unsigned i; |
| 430 | |
| 431 | vs.d = fs; |
| 432 | vt.d = ft; |
| 433 | for (i = 0; i < 4; i++) { |
| 434 | vs.sh[i] = (vs.sh[i] >= vt.sh[i] ? vs.sh[i] : vt.sh[i]); |
| 435 | } |
| 436 | return vs.d; |
| 437 | } |
| 438 | |
| 439 | uint64_t helper_pminsh(uint64_t fs, uint64_t ft) |
| 440 | { |
| 441 | LMIValue vs, vt; |
| 442 | unsigned i; |
| 443 | |
| 444 | vs.d = fs; |
| 445 | vt.d = ft; |
| 446 | for (i = 0; i < 4; i++) { |
| 447 | vs.sh[i] = (vs.sh[i] <= vt.sh[i] ? vs.sh[i] : vt.sh[i]); |
| 448 | } |
| 449 | return vs.d; |
| 450 | } |
| 451 | |
| 452 | uint64_t helper_pmaxub(uint64_t fs, uint64_t ft) |
| 453 | { |
| 454 | LMIValue vs, vt; |
| 455 | unsigned i; |
| 456 | |
| 457 | vs.d = fs; |
| 458 | vt.d = ft; |
| 459 | for (i = 0; i < 4; i++) { |
| 460 | vs.ub[i] = (vs.ub[i] >= vt.ub[i] ? vs.ub[i] : vt.ub[i]); |
| 461 | } |
| 462 | return vs.d; |
| 463 | } |
| 464 | |
| 465 | uint64_t helper_pminub(uint64_t fs, uint64_t ft) |
| 466 | { |
| 467 | LMIValue vs, vt; |
| 468 | unsigned i; |
| 469 | |
| 470 | vs.d = fs; |
| 471 | vt.d = ft; |
| 472 | for (i = 0; i < 4; i++) { |
| 473 | vs.ub[i] = (vs.ub[i] <= vt.ub[i] ? vs.ub[i] : vt.ub[i]); |
| 474 | } |
| 475 | return vs.d; |
| 476 | } |
| 477 | |
| 478 | uint64_t helper_pcmpeqw(uint64_t fs, uint64_t ft) |
| 479 | { |
| 480 | LMIValue vs, vt; |
| 481 | unsigned i; |
| 482 | |
| 483 | vs.d = fs; |
| 484 | vt.d = ft; |
| 485 | for (i = 0; i < 2; i++) { |
| 486 | vs.uw[i] = -(vs.uw[i] == vt.uw[i]); |
| 487 | } |
| 488 | return vs.d; |
| 489 | } |
| 490 | |
| 491 | uint64_t helper_pcmpgtw(uint64_t fs, uint64_t ft) |
| 492 | { |
| 493 | LMIValue vs, vt; |
| 494 | unsigned i; |
| 495 | |
| 496 | vs.d = fs; |
| 497 | vt.d = ft; |
| 498 | for (i = 0; i < 2; i++) { |
| 499 | vs.uw[i] = -(vs.uw[i] > vt.uw[i]); |
| 500 | } |
| 501 | return vs.d; |
| 502 | } |
| 503 | |
| 504 | uint64_t helper_pcmpeqh(uint64_t fs, uint64_t ft) |
| 505 | { |
| 506 | LMIValue vs, vt; |
| 507 | unsigned i; |
| 508 | |
| 509 | vs.d = fs; |
| 510 | vt.d = ft; |
| 511 | for (i = 0; i < 4; i++) { |
| 512 | vs.uh[i] = -(vs.uh[i] == vt.uh[i]); |
| 513 | } |
| 514 | return vs.d; |
| 515 | } |
| 516 | |
| 517 | uint64_t helper_pcmpgth(uint64_t fs, uint64_t ft) |
| 518 | { |
| 519 | LMIValue vs, vt; |
| 520 | unsigned i; |
| 521 | |
| 522 | vs.d = fs; |
| 523 | vt.d = ft; |
| 524 | for (i = 0; i < 4; i++) { |
| 525 | vs.uh[i] = -(vs.uh[i] > vt.uh[i]); |
| 526 | } |
| 527 | return vs.d; |
| 528 | } |
| 529 | |
| 530 | uint64_t helper_pcmpeqb(uint64_t fs, uint64_t ft) |
| 531 | { |
| 532 | LMIValue vs, vt; |
| 533 | unsigned i; |
| 534 | |
| 535 | vs.d = fs; |
| 536 | vt.d = ft; |
| 537 | for (i = 0; i < 8; i++) { |
| 538 | vs.ub[i] = -(vs.ub[i] == vt.ub[i]); |
| 539 | } |
| 540 | return vs.d; |
| 541 | } |
| 542 | |
| 543 | uint64_t helper_pcmpgtb(uint64_t fs, uint64_t ft) |
| 544 | { |
| 545 | LMIValue vs, vt; |
| 546 | unsigned i; |
| 547 | |
| 548 | vs.d = fs; |
| 549 | vt.d = ft; |
| 550 | for (i = 0; i < 8; i++) { |
| 551 | vs.ub[i] = -(vs.ub[i] > vt.ub[i]); |
| 552 | } |
| 553 | return vs.d; |
| 554 | } |
| 555 | |
| 556 | uint64_t helper_psllw(uint64_t fs, uint64_t ft) |
| 557 | { |
| 558 | LMIValue vs; |
| 559 | unsigned i; |
| 560 | |
| 561 | ft &= 0x7f; |
| 562 | if (ft > 31) { |
| 563 | return 0; |
| 564 | } |
| 565 | vs.d = fs; |
| 566 | for (i = 0; i < 2; ++i) { |
| 567 | vs.uw[i] <<= ft; |
| 568 | } |
| 569 | return vs.d; |
| 570 | } |
| 571 | |
| 572 | uint64_t helper_psrlw(uint64_t fs, uint64_t ft) |
| 573 | { |
| 574 | LMIValue vs; |
| 575 | unsigned i; |
| 576 | |
| 577 | ft &= 0x7f; |
| 578 | if (ft > 31) { |
| 579 | return 0; |
| 580 | } |
| 581 | vs.d = fs; |
| 582 | for (i = 0; i < 2; ++i) { |
| 583 | vs.uw[i] >>= ft; |
| 584 | } |
| 585 | return vs.d; |
| 586 | } |
| 587 | |
| 588 | uint64_t helper_psraw(uint64_t fs, uint64_t ft) |
| 589 | { |
| 590 | LMIValue vs; |
| 591 | unsigned i; |
| 592 | |
| 593 | ft &= 0x7f; |
| 594 | if (ft > 31) { |
| 595 | ft = 31; |
| 596 | } |
| 597 | vs.d = fs; |
| 598 | for (i = 0; i < 2; ++i) { |
| 599 | vs.sw[i] >>= ft; |
| 600 | } |
| 601 | return vs.d; |
| 602 | } |
| 603 | |
| 604 | uint64_t helper_psllh(uint64_t fs, uint64_t ft) |
| 605 | { |
| 606 | LMIValue vs; |
| 607 | unsigned i; |
| 608 | |
| 609 | ft &= 0x7f; |
| 610 | if (ft > 15) { |
| 611 | return 0; |
| 612 | } |
| 613 | vs.d = fs; |
| 614 | for (i = 0; i < 4; ++i) { |
| 615 | vs.uh[i] <<= ft; |
| 616 | } |
| 617 | return vs.d; |
| 618 | } |
| 619 | |
| 620 | uint64_t helper_psrlh(uint64_t fs, uint64_t ft) |
| 621 | { |
| 622 | LMIValue vs; |
| 623 | unsigned i; |
| 624 | |
| 625 | ft &= 0x7f; |
| 626 | if (ft > 15) { |
| 627 | return 0; |
| 628 | } |
| 629 | vs.d = fs; |
| 630 | for (i = 0; i < 4; ++i) { |
| 631 | vs.uh[i] >>= ft; |
| 632 | } |
| 633 | return vs.d; |
| 634 | } |
| 635 | |
| 636 | uint64_t helper_psrah(uint64_t fs, uint64_t ft) |
| 637 | { |
| 638 | LMIValue vs; |
| 639 | unsigned i; |
| 640 | |
| 641 | ft &= 0x7f; |
| 642 | if (ft > 15) { |
| 643 | ft = 15; |
| 644 | } |
| 645 | vs.d = fs; |
| 646 | for (i = 0; i < 4; ++i) { |
| 647 | vs.sh[i] >>= ft; |
| 648 | } |
| 649 | return vs.d; |
| 650 | } |
| 651 | |
| 652 | uint64_t helper_pmullh(uint64_t fs, uint64_t ft) |
| 653 | { |
| 654 | LMIValue vs, vt; |
| 655 | unsigned i; |
| 656 | |
| 657 | vs.d = fs; |
| 658 | vt.d = ft; |
| 659 | for (i = 0; i < 4; ++i) { |
| 660 | vs.sh[i] *= vt.sh[i]; |
| 661 | } |
| 662 | return vs.d; |
| 663 | } |
| 664 | |
| 665 | uint64_t helper_pmulhh(uint64_t fs, uint64_t ft) |
| 666 | { |
| 667 | LMIValue vs, vt; |
| 668 | unsigned i; |
| 669 | |
| 670 | vs.d = fs; |
| 671 | vt.d = ft; |
| 672 | for (i = 0; i < 4; ++i) { |
| 673 | int32_t r = vs.sh[i] * vt.sh[i]; |
| 674 | vs.sh[i] = r >> 16; |
| 675 | } |
| 676 | return vs.d; |
| 677 | } |
| 678 | |
| 679 | uint64_t helper_pmulhuh(uint64_t fs, uint64_t ft) |
| 680 | { |
| 681 | LMIValue vs, vt; |
| 682 | unsigned i; |
| 683 | |
| 684 | vs.d = fs; |
| 685 | vt.d = ft; |
| 686 | for (i = 0; i < 4; ++i) { |
| 687 | uint32_t r = vs.uh[i] * vt.uh[i]; |
| 688 | vs.uh[i] = r >> 16; |
| 689 | } |
| 690 | return vs.d; |
| 691 | } |
| 692 | |
| 693 | uint64_t helper_pmaddhw(uint64_t fs, uint64_t ft) |
| 694 | { |
| 695 | unsigned host = BYTE_ORDER_XOR(3); |
| 696 | LMIValue vs, vt; |
| 697 | uint32_t p0, p1; |
| 698 | |
| 699 | vs.d = fs; |
| 700 | vt.d = ft; |
| 701 | p0 = vs.sh[0 ^ host] * vt.sh[0 ^ host]; |
| 702 | p0 += vs.sh[1 ^ host] * vt.sh[1 ^ host]; |
| 703 | p1 = vs.sh[2 ^ host] * vt.sh[2 ^ host]; |
| 704 | p1 += vs.sh[3 ^ host] * vt.sh[3 ^ host]; |
| 705 | |
| 706 | return ((uint64_t)p1 << 32) | p0; |
| 707 | } |
| 708 | |
| 709 | uint64_t helper_pasubub(uint64_t fs, uint64_t ft) |
| 710 | { |
| 711 | LMIValue vs, vt; |
| 712 | unsigned i; |
| 713 | |
| 714 | vs.d = fs; |
| 715 | vt.d = ft; |
| 716 | for (i = 0; i < 8; ++i) { |
| 717 | int r = vs.ub[i] - vt.ub[i]; |
| 718 | vs.ub[i] = (r < 0 ? -r : r); |
| 719 | } |
| 720 | return vs.d; |
| 721 | } |
| 722 | |
| 723 | uint64_t helper_biadd(uint64_t fs) |
| 724 | { |
| 725 | unsigned i, fd; |
| 726 | |
| 727 | for (i = fd = 0; i < 8; ++i) { |
| 728 | fd += (fs >> (i * 8)) & 0xff; |
| 729 | } |
| 730 | return fd & 0xffff; |
| 731 | } |
| 732 | |
| 733 | uint64_t helper_pmovmskb(uint64_t fs) |
| 734 | { |
| 735 | unsigned fd = 0; |
| 736 | |
| 737 | fd |= ((fs >> 7) & 1) << 0; |
| 738 | fd |= ((fs >> 15) & 1) << 1; |
| 739 | fd |= ((fs >> 23) & 1) << 2; |
| 740 | fd |= ((fs >> 31) & 1) << 3; |
| 741 | fd |= ((fs >> 39) & 1) << 4; |
| 742 | fd |= ((fs >> 47) & 1) << 5; |
| 743 | fd |= ((fs >> 55) & 1) << 6; |
| 744 | fd |= ((fs >> 63) & 1) << 7; |
| 745 | |
| 746 | return fd & 0xff; |
| 747 | } |