pbrook | e677137 | 2008-03-31 03:49:05 +0000 | [diff] [blame] | 1 | /* |
| 2 | * ARM NEON vector operations. |
| 3 | * |
| 4 | * Copyright (c) 2007, 2008 CodeSourcery. |
| 5 | * Written by Paul Brook |
| 6 | * |
| 7 | * This code is licenced under the GNU GPL v2. |
| 8 | */ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 9 | #include <stdlib.h> |
| 10 | #include <stdio.h> |
| 11 | |
| 12 | #include "cpu.h" |
| 13 | #include "exec-all.h" |
| 14 | #include "helpers.h" |
| 15 | |
| 16 | #define SIGNBIT (uint32_t)0x80000000 |
| 17 | #define SIGNBIT64 ((uint64_t)1 << 63) |
| 18 | |
| 19 | #define SET_QC() env->vfp.xregs[ARM_VFP_FPSCR] = CPSR_Q |
| 20 | |
| 21 | static float_status neon_float_status; |
| 22 | #define NFS &neon_float_status |
| 23 | |
| 24 | /* Helper routines to perform bitwise copies between float and int. */ |
| 25 | static inline float32 vfp_itos(uint32_t i) |
| 26 | { |
| 27 | union { |
| 28 | uint32_t i; |
| 29 | float32 s; |
| 30 | } v; |
| 31 | |
| 32 | v.i = i; |
| 33 | return v.s; |
| 34 | } |
| 35 | |
| 36 | static inline uint32_t vfp_stoi(float32 s) |
| 37 | { |
| 38 | union { |
| 39 | uint32_t i; |
| 40 | float32 s; |
| 41 | } v; |
| 42 | |
| 43 | v.s = s; |
| 44 | return v.i; |
| 45 | } |
| 46 | |
| 47 | #define NEON_TYPE1(name, type) \ |
| 48 | typedef struct \ |
| 49 | { \ |
| 50 | type v1; \ |
| 51 | } neon_##name; |
Juan Quintela | e2542fe | 2009-07-27 16:13:06 +0200 | [diff] [blame] | 52 | #ifdef HOST_WORDS_BIGENDIAN |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 53 | #define NEON_TYPE2(name, type) \ |
| 54 | typedef struct \ |
| 55 | { \ |
| 56 | type v2; \ |
| 57 | type v1; \ |
| 58 | } neon_##name; |
| 59 | #define NEON_TYPE4(name, type) \ |
| 60 | typedef struct \ |
| 61 | { \ |
| 62 | type v4; \ |
| 63 | type v3; \ |
| 64 | type v2; \ |
| 65 | type v1; \ |
| 66 | } neon_##name; |
| 67 | #else |
| 68 | #define NEON_TYPE2(name, type) \ |
| 69 | typedef struct \ |
| 70 | { \ |
| 71 | type v1; \ |
| 72 | type v2; \ |
| 73 | } neon_##name; |
| 74 | #define NEON_TYPE4(name, type) \ |
| 75 | typedef struct \ |
| 76 | { \ |
| 77 | type v1; \ |
| 78 | type v2; \ |
| 79 | type v3; \ |
| 80 | type v4; \ |
| 81 | } neon_##name; |
| 82 | #endif |
| 83 | |
| 84 | NEON_TYPE4(s8, int8_t) |
| 85 | NEON_TYPE4(u8, uint8_t) |
| 86 | NEON_TYPE2(s16, int16_t) |
| 87 | NEON_TYPE2(u16, uint16_t) |
| 88 | NEON_TYPE1(s32, int32_t) |
| 89 | NEON_TYPE1(u32, uint32_t) |
| 90 | #undef NEON_TYPE4 |
| 91 | #undef NEON_TYPE2 |
| 92 | #undef NEON_TYPE1 |
| 93 | |
| 94 | /* Copy from a uint32_t to a vector structure type. */ |
| 95 | #define NEON_UNPACK(vtype, dest, val) do { \ |
| 96 | union { \ |
| 97 | vtype v; \ |
| 98 | uint32_t i; \ |
| 99 | } conv_u; \ |
| 100 | conv_u.i = (val); \ |
| 101 | dest = conv_u.v; \ |
| 102 | } while(0) |
| 103 | |
| 104 | /* Copy from a vector structure type to a uint32_t. */ |
| 105 | #define NEON_PACK(vtype, dest, val) do { \ |
| 106 | union { \ |
| 107 | vtype v; \ |
| 108 | uint32_t i; \ |
| 109 | } conv_u; \ |
| 110 | conv_u.v = (val); \ |
| 111 | dest = conv_u.i; \ |
| 112 | } while(0) |
| 113 | |
| 114 | #define NEON_DO1 \ |
| 115 | NEON_FN(vdest.v1, vsrc1.v1, vsrc2.v1); |
| 116 | #define NEON_DO2 \ |
| 117 | NEON_FN(vdest.v1, vsrc1.v1, vsrc2.v1); \ |
| 118 | NEON_FN(vdest.v2, vsrc1.v2, vsrc2.v2); |
| 119 | #define NEON_DO4 \ |
| 120 | NEON_FN(vdest.v1, vsrc1.v1, vsrc2.v1); \ |
| 121 | NEON_FN(vdest.v2, vsrc1.v2, vsrc2.v2); \ |
| 122 | NEON_FN(vdest.v3, vsrc1.v3, vsrc2.v3); \ |
| 123 | NEON_FN(vdest.v4, vsrc1.v4, vsrc2.v4); |
| 124 | |
| 125 | #define NEON_VOP_BODY(vtype, n) \ |
| 126 | { \ |
| 127 | uint32_t res; \ |
| 128 | vtype vsrc1; \ |
| 129 | vtype vsrc2; \ |
| 130 | vtype vdest; \ |
| 131 | NEON_UNPACK(vtype, vsrc1, arg1); \ |
| 132 | NEON_UNPACK(vtype, vsrc2, arg2); \ |
| 133 | NEON_DO##n; \ |
| 134 | NEON_PACK(vtype, res, vdest); \ |
| 135 | return res; \ |
| 136 | } |
| 137 | |
| 138 | #define NEON_VOP(name, vtype, n) \ |
| 139 | uint32_t HELPER(glue(neon_,name))(uint32_t arg1, uint32_t arg2) \ |
| 140 | NEON_VOP_BODY(vtype, n) |
| 141 | |
| 142 | #define NEON_VOP_ENV(name, vtype, n) \ |
| 143 | uint32_t HELPER(glue(neon_,name))(CPUState *env, uint32_t arg1, uint32_t arg2) \ |
| 144 | NEON_VOP_BODY(vtype, n) |
| 145 | |
| 146 | /* Pairwise operations. */ |
| 147 | /* For 32-bit elements each segment only contains a single element, so |
| 148 | the elementwise and pairwise operations are the same. */ |
| 149 | #define NEON_PDO2 \ |
| 150 | NEON_FN(vdest.v1, vsrc1.v1, vsrc1.v2); \ |
| 151 | NEON_FN(vdest.v2, vsrc2.v1, vsrc2.v2); |
| 152 | #define NEON_PDO4 \ |
| 153 | NEON_FN(vdest.v1, vsrc1.v1, vsrc1.v2); \ |
| 154 | NEON_FN(vdest.v2, vsrc1.v3, vsrc1.v4); \ |
| 155 | NEON_FN(vdest.v3, vsrc2.v1, vsrc2.v2); \ |
| 156 | NEON_FN(vdest.v4, vsrc2.v3, vsrc2.v4); \ |
| 157 | |
| 158 | #define NEON_POP(name, vtype, n) \ |
| 159 | uint32_t HELPER(glue(neon_,name))(uint32_t arg1, uint32_t arg2) \ |
| 160 | { \ |
| 161 | uint32_t res; \ |
| 162 | vtype vsrc1; \ |
| 163 | vtype vsrc2; \ |
| 164 | vtype vdest; \ |
| 165 | NEON_UNPACK(vtype, vsrc1, arg1); \ |
| 166 | NEON_UNPACK(vtype, vsrc2, arg2); \ |
| 167 | NEON_PDO##n; \ |
| 168 | NEON_PACK(vtype, res, vdest); \ |
| 169 | return res; \ |
| 170 | } |
| 171 | |
| 172 | /* Unary operators. */ |
| 173 | #define NEON_VOP1(name, vtype, n) \ |
| 174 | uint32_t HELPER(glue(neon_,name))(uint32_t arg) \ |
| 175 | { \ |
| 176 | vtype vsrc1; \ |
| 177 | vtype vdest; \ |
| 178 | NEON_UNPACK(vtype, vsrc1, arg); \ |
| 179 | NEON_DO##n; \ |
| 180 | NEON_PACK(vtype, arg, vdest); \ |
| 181 | return arg; \ |
| 182 | } |
| 183 | |
| 184 | |
| 185 | #define NEON_USAT(dest, src1, src2, type) do { \ |
| 186 | uint32_t tmp = (uint32_t)src1 + (uint32_t)src2; \ |
| 187 | if (tmp != (type)tmp) { \ |
| 188 | SET_QC(); \ |
| 189 | dest = ~0; \ |
| 190 | } else { \ |
| 191 | dest = tmp; \ |
| 192 | }} while(0) |
| 193 | #define NEON_FN(dest, src1, src2) NEON_USAT(dest, src1, src2, uint8_t) |
| 194 | NEON_VOP_ENV(qadd_u8, neon_u8, 4) |
| 195 | #undef NEON_FN |
| 196 | #define NEON_FN(dest, src1, src2) NEON_USAT(dest, src1, src2, uint16_t) |
| 197 | NEON_VOP_ENV(qadd_u16, neon_u16, 2) |
| 198 | #undef NEON_FN |
| 199 | #undef NEON_USAT |
| 200 | |
Christophe Lyon | 7290267 | 2011-02-04 15:17:51 +0100 | [diff] [blame] | 201 | uint32_t HELPER(neon_qadd_u32)(CPUState *env, uint32_t a, uint32_t b) |
| 202 | { |
| 203 | uint32_t res = a + b; |
| 204 | if (res < a) { |
| 205 | SET_QC(); |
| 206 | res = ~0; |
| 207 | } |
| 208 | return res; |
| 209 | } |
| 210 | |
| 211 | uint64_t HELPER(neon_qadd_u64)(CPUState *env, uint64_t src1, uint64_t src2) |
| 212 | { |
| 213 | uint64_t res; |
| 214 | |
| 215 | res = src1 + src2; |
| 216 | if (res < src1) { |
| 217 | SET_QC(); |
| 218 | res = ~(uint64_t)0; |
| 219 | } |
| 220 | return res; |
| 221 | } |
| 222 | |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 223 | #define NEON_SSAT(dest, src1, src2, type) do { \ |
| 224 | int32_t tmp = (uint32_t)src1 + (uint32_t)src2; \ |
| 225 | if (tmp != (type)tmp) { \ |
| 226 | SET_QC(); \ |
| 227 | if (src2 > 0) { \ |
| 228 | tmp = (1 << (sizeof(type) * 8 - 1)) - 1; \ |
| 229 | } else { \ |
| 230 | tmp = 1 << (sizeof(type) * 8 - 1); \ |
| 231 | } \ |
| 232 | } \ |
| 233 | dest = tmp; \ |
| 234 | } while(0) |
| 235 | #define NEON_FN(dest, src1, src2) NEON_SSAT(dest, src1, src2, int8_t) |
| 236 | NEON_VOP_ENV(qadd_s8, neon_s8, 4) |
| 237 | #undef NEON_FN |
| 238 | #define NEON_FN(dest, src1, src2) NEON_SSAT(dest, src1, src2, int16_t) |
| 239 | NEON_VOP_ENV(qadd_s16, neon_s16, 2) |
| 240 | #undef NEON_FN |
| 241 | #undef NEON_SSAT |
| 242 | |
Christophe Lyon | 7290267 | 2011-02-04 15:17:51 +0100 | [diff] [blame] | 243 | uint32_t HELPER(neon_qadd_s32)(CPUState *env, uint32_t a, uint32_t b) |
| 244 | { |
| 245 | uint32_t res = a + b; |
| 246 | if (((res ^ a) & SIGNBIT) && !((a ^ b) & SIGNBIT)) { |
| 247 | SET_QC(); |
| 248 | res = ~(((int32_t)a >> 31) ^ SIGNBIT); |
| 249 | } |
| 250 | return res; |
| 251 | } |
| 252 | |
| 253 | uint64_t HELPER(neon_qadd_s64)(CPUState *env, uint64_t src1, uint64_t src2) |
| 254 | { |
| 255 | uint64_t res; |
| 256 | |
| 257 | res = src1 + src2; |
| 258 | if (((res ^ src1) & SIGNBIT64) && !((src1 ^ src2) & SIGNBIT64)) { |
| 259 | SET_QC(); |
| 260 | res = ((int64_t)src1 >> 63) ^ ~SIGNBIT64; |
| 261 | } |
| 262 | return res; |
| 263 | } |
| 264 | |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 265 | #define NEON_USAT(dest, src1, src2, type) do { \ |
| 266 | uint32_t tmp = (uint32_t)src1 - (uint32_t)src2; \ |
| 267 | if (tmp != (type)tmp) { \ |
| 268 | SET_QC(); \ |
| 269 | dest = 0; \ |
| 270 | } else { \ |
| 271 | dest = tmp; \ |
| 272 | }} while(0) |
| 273 | #define NEON_FN(dest, src1, src2) NEON_USAT(dest, src1, src2, uint8_t) |
| 274 | NEON_VOP_ENV(qsub_u8, neon_u8, 4) |
| 275 | #undef NEON_FN |
| 276 | #define NEON_FN(dest, src1, src2) NEON_USAT(dest, src1, src2, uint16_t) |
| 277 | NEON_VOP_ENV(qsub_u16, neon_u16, 2) |
| 278 | #undef NEON_FN |
| 279 | #undef NEON_USAT |
| 280 | |
Christophe Lyon | 7290267 | 2011-02-04 15:17:51 +0100 | [diff] [blame] | 281 | uint32_t HELPER(neon_qsub_u32)(CPUState *env, uint32_t a, uint32_t b) |
| 282 | { |
| 283 | uint32_t res = a - b; |
| 284 | if (res > a) { |
| 285 | SET_QC(); |
| 286 | res = 0; |
| 287 | } |
| 288 | return res; |
| 289 | } |
| 290 | |
| 291 | uint64_t HELPER(neon_qsub_u64)(CPUState *env, uint64_t src1, uint64_t src2) |
| 292 | { |
| 293 | uint64_t res; |
| 294 | |
| 295 | if (src1 < src2) { |
| 296 | SET_QC(); |
| 297 | res = 0; |
| 298 | } else { |
| 299 | res = src1 - src2; |
| 300 | } |
| 301 | return res; |
| 302 | } |
| 303 | |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 304 | #define NEON_SSAT(dest, src1, src2, type) do { \ |
| 305 | int32_t tmp = (uint32_t)src1 - (uint32_t)src2; \ |
| 306 | if (tmp != (type)tmp) { \ |
| 307 | SET_QC(); \ |
| 308 | if (src2 < 0) { \ |
| 309 | tmp = (1 << (sizeof(type) * 8 - 1)) - 1; \ |
| 310 | } else { \ |
| 311 | tmp = 1 << (sizeof(type) * 8 - 1); \ |
| 312 | } \ |
| 313 | } \ |
| 314 | dest = tmp; \ |
| 315 | } while(0) |
| 316 | #define NEON_FN(dest, src1, src2) NEON_SSAT(dest, src1, src2, int8_t) |
| 317 | NEON_VOP_ENV(qsub_s8, neon_s8, 4) |
| 318 | #undef NEON_FN |
| 319 | #define NEON_FN(dest, src1, src2) NEON_SSAT(dest, src1, src2, int16_t) |
| 320 | NEON_VOP_ENV(qsub_s16, neon_s16, 2) |
| 321 | #undef NEON_FN |
| 322 | #undef NEON_SSAT |
| 323 | |
Christophe Lyon | 7290267 | 2011-02-04 15:17:51 +0100 | [diff] [blame] | 324 | uint32_t HELPER(neon_qsub_s32)(CPUState *env, uint32_t a, uint32_t b) |
| 325 | { |
| 326 | uint32_t res = a - b; |
| 327 | if (((res ^ a) & SIGNBIT) && ((a ^ b) & SIGNBIT)) { |
| 328 | SET_QC(); |
| 329 | res = ~(((int32_t)a >> 31) ^ SIGNBIT); |
| 330 | } |
| 331 | return res; |
| 332 | } |
| 333 | |
| 334 | uint64_t HELPER(neon_qsub_s64)(CPUState *env, uint64_t src1, uint64_t src2) |
| 335 | { |
| 336 | uint64_t res; |
| 337 | |
| 338 | res = src1 - src2; |
| 339 | if (((res ^ src1) & SIGNBIT64) && ((src1 ^ src2) & SIGNBIT64)) { |
| 340 | SET_QC(); |
| 341 | res = ((int64_t)src1 >> 63) ^ ~SIGNBIT64; |
| 342 | } |
| 343 | return res; |
| 344 | } |
| 345 | |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 346 | #define NEON_FN(dest, src1, src2) dest = (src1 + src2) >> 1 |
| 347 | NEON_VOP(hadd_s8, neon_s8, 4) |
| 348 | NEON_VOP(hadd_u8, neon_u8, 4) |
| 349 | NEON_VOP(hadd_s16, neon_s16, 2) |
| 350 | NEON_VOP(hadd_u16, neon_u16, 2) |
| 351 | #undef NEON_FN |
| 352 | |
| 353 | int32_t HELPER(neon_hadd_s32)(int32_t src1, int32_t src2) |
| 354 | { |
| 355 | int32_t dest; |
| 356 | |
| 357 | dest = (src1 >> 1) + (src2 >> 1); |
| 358 | if (src1 & src2 & 1) |
| 359 | dest++; |
| 360 | return dest; |
| 361 | } |
| 362 | |
| 363 | uint32_t HELPER(neon_hadd_u32)(uint32_t src1, uint32_t src2) |
| 364 | { |
| 365 | uint32_t dest; |
| 366 | |
| 367 | dest = (src1 >> 1) + (src2 >> 1); |
| 368 | if (src1 & src2 & 1) |
| 369 | dest++; |
| 370 | return dest; |
| 371 | } |
| 372 | |
| 373 | #define NEON_FN(dest, src1, src2) dest = (src1 + src2 + 1) >> 1 |
| 374 | NEON_VOP(rhadd_s8, neon_s8, 4) |
| 375 | NEON_VOP(rhadd_u8, neon_u8, 4) |
| 376 | NEON_VOP(rhadd_s16, neon_s16, 2) |
| 377 | NEON_VOP(rhadd_u16, neon_u16, 2) |
| 378 | #undef NEON_FN |
| 379 | |
| 380 | int32_t HELPER(neon_rhadd_s32)(int32_t src1, int32_t src2) |
| 381 | { |
| 382 | int32_t dest; |
| 383 | |
| 384 | dest = (src1 >> 1) + (src2 >> 1); |
| 385 | if ((src1 | src2) & 1) |
| 386 | dest++; |
| 387 | return dest; |
| 388 | } |
| 389 | |
| 390 | uint32_t HELPER(neon_rhadd_u32)(uint32_t src1, uint32_t src2) |
| 391 | { |
| 392 | uint32_t dest; |
| 393 | |
| 394 | dest = (src1 >> 1) + (src2 >> 1); |
| 395 | if ((src1 | src2) & 1) |
| 396 | dest++; |
| 397 | return dest; |
| 398 | } |
| 399 | |
| 400 | #define NEON_FN(dest, src1, src2) dest = (src1 - src2) >> 1 |
| 401 | NEON_VOP(hsub_s8, neon_s8, 4) |
| 402 | NEON_VOP(hsub_u8, neon_u8, 4) |
| 403 | NEON_VOP(hsub_s16, neon_s16, 2) |
| 404 | NEON_VOP(hsub_u16, neon_u16, 2) |
| 405 | #undef NEON_FN |
| 406 | |
| 407 | int32_t HELPER(neon_hsub_s32)(int32_t src1, int32_t src2) |
| 408 | { |
| 409 | int32_t dest; |
| 410 | |
| 411 | dest = (src1 >> 1) - (src2 >> 1); |
| 412 | if ((~src1) & src2 & 1) |
| 413 | dest--; |
| 414 | return dest; |
| 415 | } |
| 416 | |
| 417 | uint32_t HELPER(neon_hsub_u32)(uint32_t src1, uint32_t src2) |
| 418 | { |
| 419 | uint32_t dest; |
| 420 | |
| 421 | dest = (src1 >> 1) - (src2 >> 1); |
| 422 | if ((~src1) & src2 & 1) |
| 423 | dest--; |
| 424 | return dest; |
| 425 | } |
| 426 | |
| 427 | #define NEON_FN(dest, src1, src2) dest = (src1 > src2) ? ~0 : 0 |
| 428 | NEON_VOP(cgt_s8, neon_s8, 4) |
| 429 | NEON_VOP(cgt_u8, neon_u8, 4) |
| 430 | NEON_VOP(cgt_s16, neon_s16, 2) |
| 431 | NEON_VOP(cgt_u16, neon_u16, 2) |
| 432 | NEON_VOP(cgt_s32, neon_s32, 1) |
| 433 | NEON_VOP(cgt_u32, neon_u32, 1) |
| 434 | #undef NEON_FN |
| 435 | |
| 436 | #define NEON_FN(dest, src1, src2) dest = (src1 >= src2) ? ~0 : 0 |
| 437 | NEON_VOP(cge_s8, neon_s8, 4) |
| 438 | NEON_VOP(cge_u8, neon_u8, 4) |
| 439 | NEON_VOP(cge_s16, neon_s16, 2) |
| 440 | NEON_VOP(cge_u16, neon_u16, 2) |
| 441 | NEON_VOP(cge_s32, neon_s32, 1) |
| 442 | NEON_VOP(cge_u32, neon_u32, 1) |
| 443 | #undef NEON_FN |
| 444 | |
| 445 | #define NEON_FN(dest, src1, src2) dest = (src1 < src2) ? src1 : src2 |
| 446 | NEON_VOP(min_s8, neon_s8, 4) |
| 447 | NEON_VOP(min_u8, neon_u8, 4) |
| 448 | NEON_VOP(min_s16, neon_s16, 2) |
| 449 | NEON_VOP(min_u16, neon_u16, 2) |
| 450 | NEON_VOP(min_s32, neon_s32, 1) |
| 451 | NEON_VOP(min_u32, neon_u32, 1) |
| 452 | NEON_POP(pmin_s8, neon_s8, 4) |
| 453 | NEON_POP(pmin_u8, neon_u8, 4) |
| 454 | NEON_POP(pmin_s16, neon_s16, 2) |
| 455 | NEON_POP(pmin_u16, neon_u16, 2) |
| 456 | #undef NEON_FN |
| 457 | |
| 458 | #define NEON_FN(dest, src1, src2) dest = (src1 > src2) ? src1 : src2 |
| 459 | NEON_VOP(max_s8, neon_s8, 4) |
| 460 | NEON_VOP(max_u8, neon_u8, 4) |
| 461 | NEON_VOP(max_s16, neon_s16, 2) |
| 462 | NEON_VOP(max_u16, neon_u16, 2) |
| 463 | NEON_VOP(max_s32, neon_s32, 1) |
| 464 | NEON_VOP(max_u32, neon_u32, 1) |
| 465 | NEON_POP(pmax_s8, neon_s8, 4) |
| 466 | NEON_POP(pmax_u8, neon_u8, 4) |
| 467 | NEON_POP(pmax_s16, neon_s16, 2) |
| 468 | NEON_POP(pmax_u16, neon_u16, 2) |
| 469 | #undef NEON_FN |
| 470 | |
| 471 | #define NEON_FN(dest, src1, src2) \ |
| 472 | dest = (src1 > src2) ? (src1 - src2) : (src2 - src1) |
| 473 | NEON_VOP(abd_s8, neon_s8, 4) |
| 474 | NEON_VOP(abd_u8, neon_u8, 4) |
| 475 | NEON_VOP(abd_s16, neon_s16, 2) |
| 476 | NEON_VOP(abd_u16, neon_u16, 2) |
| 477 | NEON_VOP(abd_s32, neon_s32, 1) |
| 478 | NEON_VOP(abd_u32, neon_u32, 1) |
| 479 | #undef NEON_FN |
| 480 | |
| 481 | #define NEON_FN(dest, src1, src2) do { \ |
| 482 | int8_t tmp; \ |
| 483 | tmp = (int8_t)src2; \ |
Juha Riihimäki | 50f67e9 | 2009-10-26 09:01:07 +0200 | [diff] [blame] | 484 | if (tmp >= (ssize_t)sizeof(src1) * 8 || \ |
| 485 | tmp <= -(ssize_t)sizeof(src1) * 8) { \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 486 | dest = 0; \ |
| 487 | } else if (tmp < 0) { \ |
| 488 | dest = src1 >> -tmp; \ |
| 489 | } else { \ |
| 490 | dest = src1 << tmp; \ |
| 491 | }} while (0) |
| 492 | NEON_VOP(shl_u8, neon_u8, 4) |
| 493 | NEON_VOP(shl_u16, neon_u16, 2) |
| 494 | NEON_VOP(shl_u32, neon_u32, 1) |
| 495 | #undef NEON_FN |
| 496 | |
| 497 | uint64_t HELPER(neon_shl_u64)(uint64_t val, uint64_t shiftop) |
| 498 | { |
| 499 | int8_t shift = (int8_t)shiftop; |
| 500 | if (shift >= 64 || shift <= -64) { |
| 501 | val = 0; |
| 502 | } else if (shift < 0) { |
| 503 | val >>= -shift; |
| 504 | } else { |
| 505 | val <<= shift; |
| 506 | } |
| 507 | return val; |
| 508 | } |
| 509 | |
| 510 | #define NEON_FN(dest, src1, src2) do { \ |
| 511 | int8_t tmp; \ |
| 512 | tmp = (int8_t)src2; \ |
Juha Riihimäki | 50f67e9 | 2009-10-26 09:01:07 +0200 | [diff] [blame] | 513 | if (tmp >= (ssize_t)sizeof(src1) * 8) { \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 514 | dest = 0; \ |
Juha Riihimäki | 50f67e9 | 2009-10-26 09:01:07 +0200 | [diff] [blame] | 515 | } else if (tmp <= -(ssize_t)sizeof(src1) * 8) { \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 516 | dest = src1 >> (sizeof(src1) * 8 - 1); \ |
| 517 | } else if (tmp < 0) { \ |
| 518 | dest = src1 >> -tmp; \ |
| 519 | } else { \ |
| 520 | dest = src1 << tmp; \ |
| 521 | }} while (0) |
| 522 | NEON_VOP(shl_s8, neon_s8, 4) |
| 523 | NEON_VOP(shl_s16, neon_s16, 2) |
| 524 | NEON_VOP(shl_s32, neon_s32, 1) |
| 525 | #undef NEON_FN |
| 526 | |
| 527 | uint64_t HELPER(neon_shl_s64)(uint64_t valop, uint64_t shiftop) |
| 528 | { |
| 529 | int8_t shift = (int8_t)shiftop; |
| 530 | int64_t val = valop; |
| 531 | if (shift >= 64) { |
| 532 | val = 0; |
| 533 | } else if (shift <= -64) { |
| 534 | val >>= 63; |
| 535 | } else if (shift < 0) { |
| 536 | val >>= -shift; |
| 537 | } else { |
| 538 | val <<= shift; |
| 539 | } |
| 540 | return val; |
| 541 | } |
| 542 | |
| 543 | #define NEON_FN(dest, src1, src2) do { \ |
| 544 | int8_t tmp; \ |
| 545 | tmp = (int8_t)src2; \ |
Peter Maydell | 0670a7b | 2011-02-15 13:44:42 +0000 | [diff] [blame] | 546 | if ((tmp >= (ssize_t)sizeof(src1) * 8) \ |
| 547 | || (tmp <= -(ssize_t)sizeof(src1) * 8)) { \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 548 | dest = 0; \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 549 | } else if (tmp < 0) { \ |
| 550 | dest = (src1 + (1 << (-1 - tmp))) >> -tmp; \ |
| 551 | } else { \ |
| 552 | dest = src1 << tmp; \ |
| 553 | }} while (0) |
| 554 | NEON_VOP(rshl_s8, neon_s8, 4) |
| 555 | NEON_VOP(rshl_s16, neon_s16, 2) |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 556 | #undef NEON_FN |
| 557 | |
Christophe Lyon | 4bd4ee0 | 2011-02-15 13:44:41 +0000 | [diff] [blame] | 558 | /* The addition of the rounding constant may overflow, so we use an |
| 559 | * intermediate 64 bits accumulator. */ |
| 560 | uint32_t HELPER(neon_rshl_s32)(uint32_t valop, uint32_t shiftop) |
| 561 | { |
| 562 | int32_t dest; |
| 563 | int32_t val = (int32_t)valop; |
| 564 | int8_t shift = (int8_t)shiftop; |
| 565 | if ((shift >= 32) || (shift <= -32)) { |
| 566 | dest = 0; |
| 567 | } else if (shift < 0) { |
| 568 | int64_t big_dest = ((int64_t)val + (1 << (-1 - shift))); |
| 569 | dest = big_dest >> -shift; |
| 570 | } else { |
| 571 | dest = val << shift; |
| 572 | } |
| 573 | return dest; |
| 574 | } |
| 575 | |
| 576 | /* Handling addition overflow with 64 bits inputs values is more |
| 577 | * tricky than with 32 bits values. */ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 578 | uint64_t HELPER(neon_rshl_s64)(uint64_t valop, uint64_t shiftop) |
| 579 | { |
| 580 | int8_t shift = (int8_t)shiftop; |
| 581 | int64_t val = valop; |
Peter Maydell | 0670a7b | 2011-02-15 13:44:42 +0000 | [diff] [blame] | 582 | if ((shift >= 64) || (shift <= -64)) { |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 583 | val = 0; |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 584 | } else if (shift < 0) { |
Christophe Lyon | 4bd4ee0 | 2011-02-15 13:44:41 +0000 | [diff] [blame] | 585 | val >>= (-shift - 1); |
| 586 | if (val == INT64_MAX) { |
| 587 | /* In this case, it means that the rounding constant is 1, |
| 588 | * and the addition would overflow. Return the actual |
| 589 | * result directly. */ |
| 590 | val = 0x4000000000000000LL; |
| 591 | } else { |
| 592 | val++; |
| 593 | val >>= 1; |
| 594 | } |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 595 | } else { |
| 596 | val <<= shift; |
| 597 | } |
| 598 | return val; |
| 599 | } |
| 600 | |
| 601 | #define NEON_FN(dest, src1, src2) do { \ |
| 602 | int8_t tmp; \ |
| 603 | tmp = (int8_t)src2; \ |
Juha Riihimäki | 50f67e9 | 2009-10-26 09:01:07 +0200 | [diff] [blame] | 604 | if (tmp >= (ssize_t)sizeof(src1) * 8 || \ |
| 605 | tmp < -(ssize_t)sizeof(src1) * 8) { \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 606 | dest = 0; \ |
Juha Riihimäki | 50f67e9 | 2009-10-26 09:01:07 +0200 | [diff] [blame] | 607 | } else if (tmp == -(ssize_t)sizeof(src1) * 8) { \ |
Christophe Lyon | b6c63b9 | 2011-02-15 13:44:43 +0000 | [diff] [blame] | 608 | dest = src1 >> (-tmp - 1); \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 609 | } else if (tmp < 0) { \ |
| 610 | dest = (src1 + (1 << (-1 - tmp))) >> -tmp; \ |
| 611 | } else { \ |
| 612 | dest = src1 << tmp; \ |
| 613 | }} while (0) |
| 614 | NEON_VOP(rshl_u8, neon_u8, 4) |
| 615 | NEON_VOP(rshl_u16, neon_u16, 2) |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 616 | #undef NEON_FN |
| 617 | |
Christophe Lyon | 4bd4ee0 | 2011-02-15 13:44:41 +0000 | [diff] [blame] | 618 | /* The addition of the rounding constant may overflow, so we use an |
| 619 | * intermediate 64 bits accumulator. */ |
| 620 | uint32_t HELPER(neon_rshl_u32)(uint32_t val, uint32_t shiftop) |
| 621 | { |
| 622 | uint32_t dest; |
| 623 | int8_t shift = (int8_t)shiftop; |
| 624 | if (shift >= 32 || shift < -32) { |
| 625 | dest = 0; |
| 626 | } else if (shift == -32) { |
| 627 | dest = val >> 31; |
| 628 | } else if (shift < 0) { |
| 629 | uint64_t big_dest = ((uint64_t)val + (1 << (-1 - shift))); |
| 630 | dest = big_dest >> -shift; |
| 631 | } else { |
| 632 | dest = val << shift; |
| 633 | } |
| 634 | return dest; |
| 635 | } |
| 636 | |
| 637 | /* Handling addition overflow with 64 bits inputs values is more |
| 638 | * tricky than with 32 bits values. */ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 639 | uint64_t HELPER(neon_rshl_u64)(uint64_t val, uint64_t shiftop) |
| 640 | { |
| 641 | int8_t shift = (uint8_t)shiftop; |
Christophe Lyon | 51e3930 | 2011-02-15 13:44:44 +0000 | [diff] [blame] | 642 | if (shift >= 64 || shift < -64) { |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 643 | val = 0; |
| 644 | } else if (shift == -64) { |
| 645 | /* Rounding a 1-bit result just preserves that bit. */ |
| 646 | val >>= 63; |
Christophe Lyon | 4bd4ee0 | 2011-02-15 13:44:41 +0000 | [diff] [blame] | 647 | } else if (shift < 0) { |
| 648 | val >>= (-shift - 1); |
| 649 | if (val == UINT64_MAX) { |
| 650 | /* In this case, it means that the rounding constant is 1, |
| 651 | * and the addition would overflow. Return the actual |
| 652 | * result directly. */ |
| 653 | val = 0x8000000000000000ULL; |
| 654 | } else { |
| 655 | val++; |
| 656 | val >>= 1; |
| 657 | } |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 658 | } else { |
| 659 | val <<= shift; |
| 660 | } |
| 661 | return val; |
| 662 | } |
| 663 | |
| 664 | #define NEON_FN(dest, src1, src2) do { \ |
| 665 | int8_t tmp; \ |
| 666 | tmp = (int8_t)src2; \ |
Juha Riihimäki | 50f67e9 | 2009-10-26 09:01:07 +0200 | [diff] [blame] | 667 | if (tmp >= (ssize_t)sizeof(src1) * 8) { \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 668 | if (src1) { \ |
| 669 | SET_QC(); \ |
| 670 | dest = ~0; \ |
| 671 | } else { \ |
| 672 | dest = 0; \ |
| 673 | } \ |
Juha Riihimäki | 50f67e9 | 2009-10-26 09:01:07 +0200 | [diff] [blame] | 674 | } else if (tmp <= -(ssize_t)sizeof(src1) * 8) { \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 675 | dest = 0; \ |
| 676 | } else if (tmp < 0) { \ |
| 677 | dest = src1 >> -tmp; \ |
| 678 | } else { \ |
| 679 | dest = src1 << tmp; \ |
| 680 | if ((dest >> tmp) != src1) { \ |
| 681 | SET_QC(); \ |
| 682 | dest = ~0; \ |
| 683 | } \ |
| 684 | }} while (0) |
| 685 | NEON_VOP_ENV(qshl_u8, neon_u8, 4) |
| 686 | NEON_VOP_ENV(qshl_u16, neon_u16, 2) |
| 687 | NEON_VOP_ENV(qshl_u32, neon_u32, 1) |
| 688 | #undef NEON_FN |
| 689 | |
| 690 | uint64_t HELPER(neon_qshl_u64)(CPUState *env, uint64_t val, uint64_t shiftop) |
| 691 | { |
| 692 | int8_t shift = (int8_t)shiftop; |
| 693 | if (shift >= 64) { |
| 694 | if (val) { |
| 695 | val = ~(uint64_t)0; |
| 696 | SET_QC(); |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 697 | } |
| 698 | } else if (shift <= -64) { |
| 699 | val = 0; |
| 700 | } else if (shift < 0) { |
| 701 | val >>= -shift; |
| 702 | } else { |
| 703 | uint64_t tmp = val; |
| 704 | val <<= shift; |
| 705 | if ((val >> shift) != tmp) { |
| 706 | SET_QC(); |
| 707 | val = ~(uint64_t)0; |
| 708 | } |
| 709 | } |
| 710 | return val; |
| 711 | } |
| 712 | |
| 713 | #define NEON_FN(dest, src1, src2) do { \ |
| 714 | int8_t tmp; \ |
| 715 | tmp = (int8_t)src2; \ |
Juha Riihimäki | 50f67e9 | 2009-10-26 09:01:07 +0200 | [diff] [blame] | 716 | if (tmp >= (ssize_t)sizeof(src1) * 8) { \ |
Peter Maydell | a5d88f3 | 2010-12-07 14:13:45 +0000 | [diff] [blame] | 717 | if (src1) { \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 718 | SET_QC(); \ |
Peter Maydell | a5d88f3 | 2010-12-07 14:13:45 +0000 | [diff] [blame] | 719 | dest = (uint32_t)(1 << (sizeof(src1) * 8 - 1)); \ |
| 720 | if (src1 > 0) { \ |
| 721 | dest--; \ |
| 722 | } \ |
| 723 | } else { \ |
| 724 | dest = src1; \ |
| 725 | } \ |
Juha Riihimäki | 50f67e9 | 2009-10-26 09:01:07 +0200 | [diff] [blame] | 726 | } else if (tmp <= -(ssize_t)sizeof(src1) * 8) { \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 727 | dest = src1 >> 31; \ |
| 728 | } else if (tmp < 0) { \ |
| 729 | dest = src1 >> -tmp; \ |
| 730 | } else { \ |
| 731 | dest = src1 << tmp; \ |
| 732 | if ((dest >> tmp) != src1) { \ |
| 733 | SET_QC(); \ |
Peter Maydell | a5d88f3 | 2010-12-07 14:13:45 +0000 | [diff] [blame] | 734 | dest = (uint32_t)(1 << (sizeof(src1) * 8 - 1)); \ |
| 735 | if (src1 > 0) { \ |
| 736 | dest--; \ |
| 737 | } \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 738 | } \ |
| 739 | }} while (0) |
| 740 | NEON_VOP_ENV(qshl_s8, neon_s8, 4) |
| 741 | NEON_VOP_ENV(qshl_s16, neon_s16, 2) |
| 742 | NEON_VOP_ENV(qshl_s32, neon_s32, 1) |
| 743 | #undef NEON_FN |
| 744 | |
| 745 | uint64_t HELPER(neon_qshl_s64)(CPUState *env, uint64_t valop, uint64_t shiftop) |
| 746 | { |
| 747 | int8_t shift = (uint8_t)shiftop; |
| 748 | int64_t val = valop; |
| 749 | if (shift >= 64) { |
| 750 | if (val) { |
| 751 | SET_QC(); |
Peter Maydell | eb7a3d7 | 2010-12-07 14:13:43 +0000 | [diff] [blame] | 752 | val = (val >> 63) ^ ~SIGNBIT64; |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 753 | } |
Juha Riihimäki | 4c9b70a | 2010-12-07 14:13:42 +0000 | [diff] [blame] | 754 | } else if (shift <= -64) { |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 755 | val >>= 63; |
| 756 | } else if (shift < 0) { |
| 757 | val >>= -shift; |
| 758 | } else { |
| 759 | int64_t tmp = val; |
| 760 | val <<= shift; |
| 761 | if ((val >> shift) != tmp) { |
| 762 | SET_QC(); |
| 763 | val = (tmp >> 63) ^ ~SIGNBIT64; |
| 764 | } |
| 765 | } |
| 766 | return val; |
| 767 | } |
| 768 | |
Juha Riihimäki | 4ca4502 | 2011-01-08 16:01:15 +0000 | [diff] [blame] | 769 | #define NEON_FN(dest, src1, src2) do { \ |
| 770 | if (src1 & (1 << (sizeof(src1) * 8 - 1))) { \ |
| 771 | SET_QC(); \ |
| 772 | dest = 0; \ |
| 773 | } else { \ |
| 774 | int8_t tmp; \ |
| 775 | tmp = (int8_t)src2; \ |
| 776 | if (tmp >= (ssize_t)sizeof(src1) * 8) { \ |
| 777 | if (src1) { \ |
| 778 | SET_QC(); \ |
| 779 | dest = ~0; \ |
| 780 | } else { \ |
| 781 | dest = 0; \ |
| 782 | } \ |
| 783 | } else if (tmp <= -(ssize_t)sizeof(src1) * 8) { \ |
| 784 | dest = 0; \ |
| 785 | } else if (tmp < 0) { \ |
| 786 | dest = src1 >> -tmp; \ |
| 787 | } else { \ |
| 788 | dest = src1 << tmp; \ |
| 789 | if ((dest >> tmp) != src1) { \ |
| 790 | SET_QC(); \ |
| 791 | dest = ~0; \ |
| 792 | } \ |
| 793 | } \ |
| 794 | }} while (0) |
| 795 | NEON_VOP_ENV(qshlu_s8, neon_u8, 4) |
| 796 | NEON_VOP_ENV(qshlu_s16, neon_u16, 2) |
| 797 | #undef NEON_FN |
| 798 | |
| 799 | uint32_t HELPER(neon_qshlu_s32)(CPUState *env, uint32_t valop, uint32_t shiftop) |
| 800 | { |
| 801 | if ((int32_t)valop < 0) { |
| 802 | SET_QC(); |
| 803 | return 0; |
| 804 | } |
| 805 | return helper_neon_qshl_u32(env, valop, shiftop); |
| 806 | } |
| 807 | |
| 808 | uint64_t HELPER(neon_qshlu_s64)(CPUState *env, uint64_t valop, uint64_t shiftop) |
| 809 | { |
| 810 | if ((int64_t)valop < 0) { |
| 811 | SET_QC(); |
| 812 | return 0; |
| 813 | } |
| 814 | return helper_neon_qshl_u64(env, valop, shiftop); |
| 815 | } |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 816 | |
| 817 | /* FIXME: This is wrong. */ |
| 818 | #define NEON_FN(dest, src1, src2) do { \ |
| 819 | int8_t tmp; \ |
| 820 | tmp = (int8_t)src2; \ |
Peter Maydell | 33ebc29 | 2011-02-15 13:44:49 +0000 | [diff] [blame] | 821 | if (tmp >= (ssize_t)sizeof(src1) * 8) { \ |
| 822 | if (src1) { \ |
| 823 | SET_QC(); \ |
| 824 | dest = ~0; \ |
| 825 | } else { \ |
| 826 | dest = 0; \ |
| 827 | } \ |
| 828 | } else if (tmp < -(ssize_t)sizeof(src1) * 8) { \ |
| 829 | dest = 0; \ |
| 830 | } else if (tmp == -(ssize_t)sizeof(src1) * 8) { \ |
| 831 | dest = src1 >> (sizeof(src1) * 8 - 1); \ |
| 832 | } else if (tmp < 0) { \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 833 | dest = (src1 + (1 << (-1 - tmp))) >> -tmp; \ |
| 834 | } else { \ |
| 835 | dest = src1 << tmp; \ |
| 836 | if ((dest >> tmp) != src1) { \ |
| 837 | SET_QC(); \ |
| 838 | dest = ~0; \ |
| 839 | } \ |
| 840 | }} while (0) |
| 841 | NEON_VOP_ENV(qrshl_u8, neon_u8, 4) |
| 842 | NEON_VOP_ENV(qrshl_u16, neon_u16, 2) |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 843 | #undef NEON_FN |
| 844 | |
Christophe Lyon | 4bd4ee0 | 2011-02-15 13:44:41 +0000 | [diff] [blame] | 845 | /* The addition of the rounding constant may overflow, so we use an |
| 846 | * intermediate 64 bits accumulator. */ |
| 847 | uint32_t HELPER(neon_qrshl_u32)(CPUState *env, uint32_t val, uint32_t shiftop) |
| 848 | { |
| 849 | uint32_t dest; |
| 850 | int8_t shift = (int8_t)shiftop; |
Peter Maydell | 33ebc29 | 2011-02-15 13:44:49 +0000 | [diff] [blame] | 851 | if (shift >= 32) { |
| 852 | if (val) { |
| 853 | SET_QC(); |
| 854 | dest = ~0; |
| 855 | } else { |
| 856 | dest = 0; |
| 857 | } |
| 858 | } else if (shift < -32) { |
| 859 | dest = 0; |
| 860 | } else if (shift == -32) { |
| 861 | dest = val >> 31; |
| 862 | } else if (shift < 0) { |
Christophe Lyon | 4bd4ee0 | 2011-02-15 13:44:41 +0000 | [diff] [blame] | 863 | uint64_t big_dest = ((uint64_t)val + (1 << (-1 - shift))); |
| 864 | dest = big_dest >> -shift; |
| 865 | } else { |
| 866 | dest = val << shift; |
| 867 | if ((dest >> shift) != val) { |
| 868 | SET_QC(); |
| 869 | dest = ~0; |
| 870 | } |
| 871 | } |
| 872 | return dest; |
| 873 | } |
| 874 | |
| 875 | /* Handling addition overflow with 64 bits inputs values is more |
| 876 | * tricky than with 32 bits values. */ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 877 | uint64_t HELPER(neon_qrshl_u64)(CPUState *env, uint64_t val, uint64_t shiftop) |
| 878 | { |
| 879 | int8_t shift = (int8_t)shiftop; |
Peter Maydell | 33ebc29 | 2011-02-15 13:44:49 +0000 | [diff] [blame] | 880 | if (shift >= 64) { |
| 881 | if (val) { |
| 882 | SET_QC(); |
| 883 | val = ~0; |
| 884 | } |
| 885 | } else if (shift < -64) { |
| 886 | val = 0; |
| 887 | } else if (shift == -64) { |
| 888 | val >>= 63; |
| 889 | } else if (shift < 0) { |
Christophe Lyon | 4bd4ee0 | 2011-02-15 13:44:41 +0000 | [diff] [blame] | 890 | val >>= (-shift - 1); |
| 891 | if (val == UINT64_MAX) { |
| 892 | /* In this case, it means that the rounding constant is 1, |
| 893 | * and the addition would overflow. Return the actual |
| 894 | * result directly. */ |
| 895 | val = 0x8000000000000000ULL; |
| 896 | } else { |
| 897 | val++; |
| 898 | val >>= 1; |
| 899 | } |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 900 | } else { \ |
| 901 | uint64_t tmp = val; |
| 902 | val <<= shift; |
| 903 | if ((val >> shift) != tmp) { |
| 904 | SET_QC(); |
| 905 | val = ~0; |
| 906 | } |
| 907 | } |
| 908 | return val; |
| 909 | } |
| 910 | |
| 911 | #define NEON_FN(dest, src1, src2) do { \ |
| 912 | int8_t tmp; \ |
| 913 | tmp = (int8_t)src2; \ |
Peter Maydell | 7b6ecf5 | 2011-02-15 13:44:48 +0000 | [diff] [blame] | 914 | if (tmp >= (ssize_t)sizeof(src1) * 8) { \ |
| 915 | if (src1) { \ |
| 916 | SET_QC(); \ |
| 917 | dest = (1 << (sizeof(src1) * 8 - 1)); \ |
| 918 | if (src1 > 0) { \ |
| 919 | dest--; \ |
| 920 | } \ |
| 921 | } else { \ |
| 922 | dest = 0; \ |
| 923 | } \ |
| 924 | } else if (tmp <= -(ssize_t)sizeof(src1) * 8) { \ |
| 925 | dest = 0; \ |
| 926 | } else if (tmp < 0) { \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 927 | dest = (src1 + (1 << (-1 - tmp))) >> -tmp; \ |
| 928 | } else { \ |
| 929 | dest = src1 << tmp; \ |
| 930 | if ((dest >> tmp) != src1) { \ |
| 931 | SET_QC(); \ |
Peter Maydell | 960e623 | 2011-02-15 13:44:45 +0000 | [diff] [blame] | 932 | dest = (uint32_t)(1 << (sizeof(src1) * 8 - 1)); \ |
| 933 | if (src1 > 0) { \ |
| 934 | dest--; \ |
| 935 | } \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 936 | } \ |
| 937 | }} while (0) |
| 938 | NEON_VOP_ENV(qrshl_s8, neon_s8, 4) |
| 939 | NEON_VOP_ENV(qrshl_s16, neon_s16, 2) |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 940 | #undef NEON_FN |
| 941 | |
Christophe Lyon | 4bd4ee0 | 2011-02-15 13:44:41 +0000 | [diff] [blame] | 942 | /* The addition of the rounding constant may overflow, so we use an |
| 943 | * intermediate 64 bits accumulator. */ |
| 944 | uint32_t HELPER(neon_qrshl_s32)(CPUState *env, uint32_t valop, uint32_t shiftop) |
| 945 | { |
| 946 | int32_t dest; |
| 947 | int32_t val = (int32_t)valop; |
| 948 | int8_t shift = (int8_t)shiftop; |
Peter Maydell | 7b6ecf5 | 2011-02-15 13:44:48 +0000 | [diff] [blame] | 949 | if (shift >= 32) { |
| 950 | if (val) { |
| 951 | SET_QC(); |
| 952 | dest = (val >> 31) ^ ~SIGNBIT; |
| 953 | } else { |
| 954 | dest = 0; |
| 955 | } |
| 956 | } else if (shift <= -32) { |
| 957 | dest = 0; |
| 958 | } else if (shift < 0) { |
Christophe Lyon | 4bd4ee0 | 2011-02-15 13:44:41 +0000 | [diff] [blame] | 959 | int64_t big_dest = ((int64_t)val + (1 << (-1 - shift))); |
| 960 | dest = big_dest >> -shift; |
| 961 | } else { |
| 962 | dest = val << shift; |
| 963 | if ((dest >> shift) != val) { |
| 964 | SET_QC(); |
| 965 | dest = (val >> 31) ^ ~SIGNBIT; |
| 966 | } |
| 967 | } |
| 968 | return dest; |
| 969 | } |
| 970 | |
| 971 | /* Handling addition overflow with 64 bits inputs values is more |
| 972 | * tricky than with 32 bits values. */ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 973 | uint64_t HELPER(neon_qrshl_s64)(CPUState *env, uint64_t valop, uint64_t shiftop) |
| 974 | { |
| 975 | int8_t shift = (uint8_t)shiftop; |
| 976 | int64_t val = valop; |
| 977 | |
Peter Maydell | 7b6ecf5 | 2011-02-15 13:44:48 +0000 | [diff] [blame] | 978 | if (shift >= 64) { |
| 979 | if (val) { |
| 980 | SET_QC(); |
| 981 | val = (val >> 63) ^ ~SIGNBIT64; |
| 982 | } |
| 983 | } else if (shift <= -64) { |
| 984 | val = 0; |
| 985 | } else if (shift < 0) { |
Christophe Lyon | 4bd4ee0 | 2011-02-15 13:44:41 +0000 | [diff] [blame] | 986 | val >>= (-shift - 1); |
| 987 | if (val == INT64_MAX) { |
| 988 | /* In this case, it means that the rounding constant is 1, |
| 989 | * and the addition would overflow. Return the actual |
| 990 | * result directly. */ |
| 991 | val = 0x4000000000000000ULL; |
| 992 | } else { |
| 993 | val++; |
| 994 | val >>= 1; |
| 995 | } |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 996 | } else { |
Christophe Lyon | 4bd4ee0 | 2011-02-15 13:44:41 +0000 | [diff] [blame] | 997 | int64_t tmp = val; |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 998 | val <<= shift; |
| 999 | if ((val >> shift) != tmp) { |
| 1000 | SET_QC(); |
Christophe Lyon | 4bd4ee0 | 2011-02-15 13:44:41 +0000 | [diff] [blame] | 1001 | val = (tmp >> 63) ^ ~SIGNBIT64; |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 1002 | } |
| 1003 | } |
| 1004 | return val; |
| 1005 | } |
| 1006 | |
| 1007 | uint32_t HELPER(neon_add_u8)(uint32_t a, uint32_t b) |
| 1008 | { |
| 1009 | uint32_t mask; |
| 1010 | mask = (a ^ b) & 0x80808080u; |
| 1011 | a &= ~0x80808080u; |
| 1012 | b &= ~0x80808080u; |
| 1013 | return (a + b) ^ mask; |
| 1014 | } |
| 1015 | |
| 1016 | uint32_t HELPER(neon_add_u16)(uint32_t a, uint32_t b) |
| 1017 | { |
| 1018 | uint32_t mask; |
| 1019 | mask = (a ^ b) & 0x80008000u; |
| 1020 | a &= ~0x80008000u; |
| 1021 | b &= ~0x80008000u; |
| 1022 | return (a + b) ^ mask; |
| 1023 | } |
| 1024 | |
| 1025 | #define NEON_FN(dest, src1, src2) dest = src1 + src2 |
| 1026 | NEON_POP(padd_u8, neon_u8, 4) |
| 1027 | NEON_POP(padd_u16, neon_u16, 2) |
| 1028 | #undef NEON_FN |
| 1029 | |
| 1030 | #define NEON_FN(dest, src1, src2) dest = src1 - src2 |
| 1031 | NEON_VOP(sub_u8, neon_u8, 4) |
| 1032 | NEON_VOP(sub_u16, neon_u16, 2) |
| 1033 | #undef NEON_FN |
| 1034 | |
| 1035 | #define NEON_FN(dest, src1, src2) dest = src1 * src2 |
| 1036 | NEON_VOP(mul_u8, neon_u8, 4) |
| 1037 | NEON_VOP(mul_u16, neon_u16, 2) |
| 1038 | #undef NEON_FN |
| 1039 | |
aurel32 | 1654b2d | 2008-04-11 04:55:07 +0000 | [diff] [blame] | 1040 | /* Polynomial multiplication is like integer multiplication except the |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 1041 | partial products are XORed, not added. */ |
| 1042 | uint32_t HELPER(neon_mul_p8)(uint32_t op1, uint32_t op2) |
| 1043 | { |
| 1044 | uint32_t mask; |
| 1045 | uint32_t result; |
| 1046 | result = 0; |
| 1047 | while (op1) { |
| 1048 | mask = 0; |
| 1049 | if (op1 & 1) |
| 1050 | mask |= 0xff; |
| 1051 | if (op1 & (1 << 8)) |
| 1052 | mask |= (0xff << 8); |
| 1053 | if (op1 & (1 << 16)) |
| 1054 | mask |= (0xff << 16); |
| 1055 | if (op1 & (1 << 24)) |
| 1056 | mask |= (0xff << 24); |
| 1057 | result ^= op2 & mask; |
| 1058 | op1 = (op1 >> 1) & 0x7f7f7f7f; |
| 1059 | op2 = (op2 << 1) & 0xfefefefe; |
| 1060 | } |
| 1061 | return result; |
| 1062 | } |
| 1063 | |
Peter Maydell | e5ca24c | 2011-02-10 19:07:55 +0000 | [diff] [blame] | 1064 | uint64_t HELPER(neon_mull_p8)(uint32_t op1, uint32_t op2) |
| 1065 | { |
| 1066 | uint64_t result = 0; |
| 1067 | uint64_t mask; |
| 1068 | uint64_t op2ex = op2; |
| 1069 | op2ex = (op2ex & 0xff) | |
| 1070 | ((op2ex & 0xff00) << 8) | |
| 1071 | ((op2ex & 0xff0000) << 16) | |
| 1072 | ((op2ex & 0xff000000) << 24); |
| 1073 | while (op1) { |
| 1074 | mask = 0; |
| 1075 | if (op1 & 1) { |
| 1076 | mask |= 0xffff; |
| 1077 | } |
| 1078 | if (op1 & (1 << 8)) { |
| 1079 | mask |= (0xffffU << 16); |
| 1080 | } |
| 1081 | if (op1 & (1 << 16)) { |
| 1082 | mask |= (0xffffULL << 32); |
| 1083 | } |
| 1084 | if (op1 & (1 << 24)) { |
| 1085 | mask |= (0xffffULL << 48); |
| 1086 | } |
| 1087 | result ^= op2ex & mask; |
| 1088 | op1 = (op1 >> 1) & 0x7f7f7f7f; |
| 1089 | op2ex <<= 1; |
| 1090 | } |
| 1091 | return result; |
| 1092 | } |
| 1093 | |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 1094 | #define NEON_FN(dest, src1, src2) dest = (src1 & src2) ? -1 : 0 |
| 1095 | NEON_VOP(tst_u8, neon_u8, 4) |
| 1096 | NEON_VOP(tst_u16, neon_u16, 2) |
| 1097 | NEON_VOP(tst_u32, neon_u32, 1) |
| 1098 | #undef NEON_FN |
| 1099 | |
| 1100 | #define NEON_FN(dest, src1, src2) dest = (src1 == src2) ? -1 : 0 |
| 1101 | NEON_VOP(ceq_u8, neon_u8, 4) |
| 1102 | NEON_VOP(ceq_u16, neon_u16, 2) |
| 1103 | NEON_VOP(ceq_u32, neon_u32, 1) |
| 1104 | #undef NEON_FN |
| 1105 | |
| 1106 | #define NEON_FN(dest, src, dummy) dest = (src < 0) ? -src : src |
| 1107 | NEON_VOP1(abs_s8, neon_s8, 4) |
| 1108 | NEON_VOP1(abs_s16, neon_s16, 2) |
| 1109 | #undef NEON_FN |
| 1110 | |
| 1111 | /* Count Leading Sign/Zero Bits. */ |
| 1112 | static inline int do_clz8(uint8_t x) |
| 1113 | { |
| 1114 | int n; |
| 1115 | for (n = 8; x; n--) |
| 1116 | x >>= 1; |
| 1117 | return n; |
| 1118 | } |
| 1119 | |
| 1120 | static inline int do_clz16(uint16_t x) |
| 1121 | { |
| 1122 | int n; |
| 1123 | for (n = 16; x; n--) |
| 1124 | x >>= 1; |
| 1125 | return n; |
| 1126 | } |
| 1127 | |
| 1128 | #define NEON_FN(dest, src, dummy) dest = do_clz8(src) |
| 1129 | NEON_VOP1(clz_u8, neon_u8, 4) |
| 1130 | #undef NEON_FN |
| 1131 | |
| 1132 | #define NEON_FN(dest, src, dummy) dest = do_clz16(src) |
| 1133 | NEON_VOP1(clz_u16, neon_u16, 2) |
| 1134 | #undef NEON_FN |
| 1135 | |
| 1136 | #define NEON_FN(dest, src, dummy) dest = do_clz8((src < 0) ? ~src : src) - 1 |
| 1137 | NEON_VOP1(cls_s8, neon_s8, 4) |
| 1138 | #undef NEON_FN |
| 1139 | |
| 1140 | #define NEON_FN(dest, src, dummy) dest = do_clz16((src < 0) ? ~src : src) - 1 |
| 1141 | NEON_VOP1(cls_s16, neon_s16, 2) |
| 1142 | #undef NEON_FN |
| 1143 | |
| 1144 | uint32_t HELPER(neon_cls_s32)(uint32_t x) |
| 1145 | { |
| 1146 | int count; |
| 1147 | if ((int32_t)x < 0) |
| 1148 | x = ~x; |
| 1149 | for (count = 32; x; count--) |
| 1150 | x = x >> 1; |
| 1151 | return count - 1; |
| 1152 | } |
| 1153 | |
| 1154 | /* Bit count. */ |
| 1155 | uint32_t HELPER(neon_cnt_u8)(uint32_t x) |
| 1156 | { |
| 1157 | x = (x & 0x55555555) + ((x >> 1) & 0x55555555); |
| 1158 | x = (x & 0x33333333) + ((x >> 2) & 0x33333333); |
| 1159 | x = (x & 0x0f0f0f0f) + ((x >> 4) & 0x0f0f0f0f); |
| 1160 | return x; |
| 1161 | } |
| 1162 | |
| 1163 | #define NEON_QDMULH16(dest, src1, src2, round) do { \ |
| 1164 | uint32_t tmp = (int32_t)(int16_t) src1 * (int16_t) src2; \ |
| 1165 | if ((tmp ^ (tmp << 1)) & SIGNBIT) { \ |
| 1166 | SET_QC(); \ |
| 1167 | tmp = (tmp >> 31) ^ ~SIGNBIT; \ |
Juha Riihimäki | 46eece9 | 2011-01-27 19:18:35 +0000 | [diff] [blame] | 1168 | } else { \ |
| 1169 | tmp <<= 1; \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 1170 | } \ |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 1171 | if (round) { \ |
| 1172 | int32_t old = tmp; \ |
| 1173 | tmp += 1 << 15; \ |
| 1174 | if ((int32_t)tmp < old) { \ |
| 1175 | SET_QC(); \ |
| 1176 | tmp = SIGNBIT - 1; \ |
| 1177 | } \ |
| 1178 | } \ |
| 1179 | dest = tmp >> 16; \ |
| 1180 | } while(0) |
| 1181 | #define NEON_FN(dest, src1, src2) NEON_QDMULH16(dest, src1, src2, 0) |
| 1182 | NEON_VOP_ENV(qdmulh_s16, neon_s16, 2) |
| 1183 | #undef NEON_FN |
| 1184 | #define NEON_FN(dest, src1, src2) NEON_QDMULH16(dest, src1, src2, 1) |
| 1185 | NEON_VOP_ENV(qrdmulh_s16, neon_s16, 2) |
| 1186 | #undef NEON_FN |
| 1187 | #undef NEON_QDMULH16 |
| 1188 | |
| 1189 | #define NEON_QDMULH32(dest, src1, src2, round) do { \ |
| 1190 | uint64_t tmp = (int64_t)(int32_t) src1 * (int32_t) src2; \ |
| 1191 | if ((tmp ^ (tmp << 1)) & SIGNBIT64) { \ |
| 1192 | SET_QC(); \ |
| 1193 | tmp = (tmp >> 63) ^ ~SIGNBIT64; \ |
| 1194 | } else { \ |
| 1195 | tmp <<= 1; \ |
| 1196 | } \ |
| 1197 | if (round) { \ |
| 1198 | int64_t old = tmp; \ |
| 1199 | tmp += (int64_t)1 << 31; \ |
| 1200 | if ((int64_t)tmp < old) { \ |
| 1201 | SET_QC(); \ |
| 1202 | tmp = SIGNBIT64 - 1; \ |
| 1203 | } \ |
| 1204 | } \ |
| 1205 | dest = tmp >> 32; \ |
| 1206 | } while(0) |
| 1207 | #define NEON_FN(dest, src1, src2) NEON_QDMULH32(dest, src1, src2, 0) |
| 1208 | NEON_VOP_ENV(qdmulh_s32, neon_s32, 1) |
| 1209 | #undef NEON_FN |
| 1210 | #define NEON_FN(dest, src1, src2) NEON_QDMULH32(dest, src1, src2, 1) |
| 1211 | NEON_VOP_ENV(qrdmulh_s32, neon_s32, 1) |
| 1212 | #undef NEON_FN |
| 1213 | #undef NEON_QDMULH32 |
| 1214 | |
| 1215 | uint32_t HELPER(neon_narrow_u8)(uint64_t x) |
| 1216 | { |
| 1217 | return (x & 0xffu) | ((x >> 8) & 0xff00u) | ((x >> 16) & 0xff0000u) |
| 1218 | | ((x >> 24) & 0xff000000u); |
| 1219 | } |
| 1220 | |
| 1221 | uint32_t HELPER(neon_narrow_u16)(uint64_t x) |
| 1222 | { |
| 1223 | return (x & 0xffffu) | ((x >> 16) & 0xffff0000u); |
| 1224 | } |
| 1225 | |
| 1226 | uint32_t HELPER(neon_narrow_high_u8)(uint64_t x) |
| 1227 | { |
| 1228 | return ((x >> 8) & 0xff) | ((x >> 16) & 0xff00) |
| 1229 | | ((x >> 24) & 0xff0000) | ((x >> 32) & 0xff000000); |
| 1230 | } |
| 1231 | |
| 1232 | uint32_t HELPER(neon_narrow_high_u16)(uint64_t x) |
| 1233 | { |
| 1234 | return ((x >> 16) & 0xffff) | ((x >> 32) & 0xffff0000); |
| 1235 | } |
| 1236 | |
| 1237 | uint32_t HELPER(neon_narrow_round_high_u8)(uint64_t x) |
| 1238 | { |
| 1239 | x &= 0xff80ff80ff80ff80ull; |
| 1240 | x += 0x0080008000800080ull; |
| 1241 | return ((x >> 8) & 0xff) | ((x >> 16) & 0xff00) |
| 1242 | | ((x >> 24) & 0xff0000) | ((x >> 32) & 0xff000000); |
| 1243 | } |
| 1244 | |
| 1245 | uint32_t HELPER(neon_narrow_round_high_u16)(uint64_t x) |
| 1246 | { |
| 1247 | x &= 0xffff8000ffff8000ull; |
| 1248 | x += 0x0000800000008000ull; |
| 1249 | return ((x >> 16) & 0xffff) | ((x >> 32) & 0xffff0000); |
| 1250 | } |
| 1251 | |
Juha Riihimäki | af1bbf3 | 2011-02-09 15:42:32 +0000 | [diff] [blame] | 1252 | uint32_t HELPER(neon_unarrow_sat8)(CPUState *env, uint64_t x) |
| 1253 | { |
| 1254 | uint16_t s; |
| 1255 | uint8_t d; |
| 1256 | uint32_t res = 0; |
| 1257 | #define SAT8(n) \ |
| 1258 | s = x >> n; \ |
| 1259 | if (s & 0x8000) { \ |
| 1260 | SET_QC(); \ |
| 1261 | } else { \ |
| 1262 | if (s > 0xff) { \ |
| 1263 | d = 0xff; \ |
| 1264 | SET_QC(); \ |
| 1265 | } else { \ |
| 1266 | d = s; \ |
| 1267 | } \ |
| 1268 | res |= (uint32_t)d << (n / 2); \ |
| 1269 | } |
| 1270 | |
| 1271 | SAT8(0); |
| 1272 | SAT8(16); |
| 1273 | SAT8(32); |
| 1274 | SAT8(48); |
| 1275 | #undef SAT8 |
| 1276 | return res; |
| 1277 | } |
| 1278 | |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 1279 | uint32_t HELPER(neon_narrow_sat_u8)(CPUState *env, uint64_t x) |
| 1280 | { |
| 1281 | uint16_t s; |
| 1282 | uint8_t d; |
| 1283 | uint32_t res = 0; |
| 1284 | #define SAT8(n) \ |
| 1285 | s = x >> n; \ |
| 1286 | if (s > 0xff) { \ |
| 1287 | d = 0xff; \ |
| 1288 | SET_QC(); \ |
| 1289 | } else { \ |
| 1290 | d = s; \ |
| 1291 | } \ |
| 1292 | res |= (uint32_t)d << (n / 2); |
| 1293 | |
| 1294 | SAT8(0); |
| 1295 | SAT8(16); |
| 1296 | SAT8(32); |
| 1297 | SAT8(48); |
| 1298 | #undef SAT8 |
| 1299 | return res; |
| 1300 | } |
| 1301 | |
| 1302 | uint32_t HELPER(neon_narrow_sat_s8)(CPUState *env, uint64_t x) |
| 1303 | { |
| 1304 | int16_t s; |
| 1305 | uint8_t d; |
| 1306 | uint32_t res = 0; |
| 1307 | #define SAT8(n) \ |
| 1308 | s = x >> n; \ |
| 1309 | if (s != (int8_t)s) { \ |
| 1310 | d = (s >> 15) ^ 0x7f; \ |
| 1311 | SET_QC(); \ |
| 1312 | } else { \ |
| 1313 | d = s; \ |
| 1314 | } \ |
| 1315 | res |= (uint32_t)d << (n / 2); |
| 1316 | |
| 1317 | SAT8(0); |
| 1318 | SAT8(16); |
| 1319 | SAT8(32); |
| 1320 | SAT8(48); |
| 1321 | #undef SAT8 |
| 1322 | return res; |
| 1323 | } |
| 1324 | |
Juha Riihimäki | af1bbf3 | 2011-02-09 15:42:32 +0000 | [diff] [blame] | 1325 | uint32_t HELPER(neon_unarrow_sat16)(CPUState *env, uint64_t x) |
| 1326 | { |
| 1327 | uint32_t high; |
| 1328 | uint32_t low; |
| 1329 | low = x; |
| 1330 | if (low & 0x80000000) { |
| 1331 | low = 0; |
| 1332 | SET_QC(); |
| 1333 | } else if (low > 0xffff) { |
| 1334 | low = 0xffff; |
| 1335 | SET_QC(); |
| 1336 | } |
| 1337 | high = x >> 32; |
| 1338 | if (high & 0x80000000) { |
| 1339 | high = 0; |
| 1340 | SET_QC(); |
| 1341 | } else if (high > 0xffff) { |
| 1342 | high = 0xffff; |
| 1343 | SET_QC(); |
| 1344 | } |
| 1345 | return low | (high << 16); |
| 1346 | } |
| 1347 | |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 1348 | uint32_t HELPER(neon_narrow_sat_u16)(CPUState *env, uint64_t x) |
| 1349 | { |
| 1350 | uint32_t high; |
| 1351 | uint32_t low; |
| 1352 | low = x; |
| 1353 | if (low > 0xffff) { |
| 1354 | low = 0xffff; |
| 1355 | SET_QC(); |
| 1356 | } |
| 1357 | high = x >> 32; |
| 1358 | if (high > 0xffff) { |
| 1359 | high = 0xffff; |
| 1360 | SET_QC(); |
| 1361 | } |
| 1362 | return low | (high << 16); |
| 1363 | } |
| 1364 | |
| 1365 | uint32_t HELPER(neon_narrow_sat_s16)(CPUState *env, uint64_t x) |
| 1366 | { |
| 1367 | int32_t low; |
| 1368 | int32_t high; |
| 1369 | low = x; |
| 1370 | if (low != (int16_t)low) { |
| 1371 | low = (low >> 31) ^ 0x7fff; |
| 1372 | SET_QC(); |
| 1373 | } |
| 1374 | high = x >> 32; |
| 1375 | if (high != (int16_t)high) { |
| 1376 | high = (high >> 31) ^ 0x7fff; |
| 1377 | SET_QC(); |
| 1378 | } |
| 1379 | return (uint16_t)low | (high << 16); |
| 1380 | } |
| 1381 | |
Juha Riihimäki | af1bbf3 | 2011-02-09 15:42:32 +0000 | [diff] [blame] | 1382 | uint32_t HELPER(neon_unarrow_sat32)(CPUState *env, uint64_t x) |
| 1383 | { |
| 1384 | if (x & 0x8000000000000000ull) { |
| 1385 | SET_QC(); |
| 1386 | return 0; |
| 1387 | } |
| 1388 | if (x > 0xffffffffu) { |
| 1389 | SET_QC(); |
| 1390 | return 0xffffffffu; |
| 1391 | } |
| 1392 | return x; |
| 1393 | } |
| 1394 | |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 1395 | uint32_t HELPER(neon_narrow_sat_u32)(CPUState *env, uint64_t x) |
| 1396 | { |
| 1397 | if (x > 0xffffffffu) { |
| 1398 | SET_QC(); |
| 1399 | return 0xffffffffu; |
| 1400 | } |
| 1401 | return x; |
| 1402 | } |
| 1403 | |
| 1404 | uint32_t HELPER(neon_narrow_sat_s32)(CPUState *env, uint64_t x) |
| 1405 | { |
| 1406 | if ((int64_t)x != (int32_t)x) { |
| 1407 | SET_QC(); |
Peter Maydell | cc2212c | 2011-02-09 15:42:33 +0000 | [diff] [blame] | 1408 | return ((int64_t)x >> 63) ^ 0x7fffffff; |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 1409 | } |
| 1410 | return x; |
| 1411 | } |
| 1412 | |
| 1413 | uint64_t HELPER(neon_widen_u8)(uint32_t x) |
| 1414 | { |
| 1415 | uint64_t tmp; |
| 1416 | uint64_t ret; |
| 1417 | ret = (uint8_t)x; |
| 1418 | tmp = (uint8_t)(x >> 8); |
| 1419 | ret |= tmp << 16; |
| 1420 | tmp = (uint8_t)(x >> 16); |
| 1421 | ret |= tmp << 32; |
| 1422 | tmp = (uint8_t)(x >> 24); |
| 1423 | ret |= tmp << 48; |
| 1424 | return ret; |
| 1425 | } |
| 1426 | |
| 1427 | uint64_t HELPER(neon_widen_s8)(uint32_t x) |
| 1428 | { |
| 1429 | uint64_t tmp; |
| 1430 | uint64_t ret; |
| 1431 | ret = (uint16_t)(int8_t)x; |
| 1432 | tmp = (uint16_t)(int8_t)(x >> 8); |
| 1433 | ret |= tmp << 16; |
| 1434 | tmp = (uint16_t)(int8_t)(x >> 16); |
| 1435 | ret |= tmp << 32; |
| 1436 | tmp = (uint16_t)(int8_t)(x >> 24); |
| 1437 | ret |= tmp << 48; |
| 1438 | return ret; |
| 1439 | } |
| 1440 | |
| 1441 | uint64_t HELPER(neon_widen_u16)(uint32_t x) |
| 1442 | { |
| 1443 | uint64_t high = (uint16_t)(x >> 16); |
| 1444 | return ((uint16_t)x) | (high << 32); |
| 1445 | } |
| 1446 | |
| 1447 | uint64_t HELPER(neon_widen_s16)(uint32_t x) |
| 1448 | { |
| 1449 | uint64_t high = (int16_t)(x >> 16); |
| 1450 | return ((uint32_t)(int16_t)x) | (high << 32); |
| 1451 | } |
| 1452 | |
| 1453 | uint64_t HELPER(neon_addl_u16)(uint64_t a, uint64_t b) |
| 1454 | { |
| 1455 | uint64_t mask; |
| 1456 | mask = (a ^ b) & 0x8000800080008000ull; |
| 1457 | a &= ~0x8000800080008000ull; |
| 1458 | b &= ~0x8000800080008000ull; |
| 1459 | return (a + b) ^ mask; |
| 1460 | } |
| 1461 | |
| 1462 | uint64_t HELPER(neon_addl_u32)(uint64_t a, uint64_t b) |
| 1463 | { |
| 1464 | uint64_t mask; |
| 1465 | mask = (a ^ b) & 0x8000000080000000ull; |
| 1466 | a &= ~0x8000000080000000ull; |
| 1467 | b &= ~0x8000000080000000ull; |
| 1468 | return (a + b) ^ mask; |
| 1469 | } |
| 1470 | |
| 1471 | uint64_t HELPER(neon_paddl_u16)(uint64_t a, uint64_t b) |
| 1472 | { |
| 1473 | uint64_t tmp; |
| 1474 | uint64_t tmp2; |
| 1475 | |
| 1476 | tmp = a & 0x0000ffff0000ffffull; |
| 1477 | tmp += (a >> 16) & 0x0000ffff0000ffffull; |
| 1478 | tmp2 = b & 0xffff0000ffff0000ull; |
| 1479 | tmp2 += (b << 16) & 0xffff0000ffff0000ull; |
| 1480 | return ( tmp & 0xffff) |
| 1481 | | ((tmp >> 16) & 0xffff0000ull) |
| 1482 | | ((tmp2 << 16) & 0xffff00000000ull) |
| 1483 | | ( tmp2 & 0xffff000000000000ull); |
| 1484 | } |
| 1485 | |
| 1486 | uint64_t HELPER(neon_paddl_u32)(uint64_t a, uint64_t b) |
| 1487 | { |
| 1488 | uint32_t low = a + (a >> 32); |
| 1489 | uint32_t high = b + (b >> 32); |
| 1490 | return low + ((uint64_t)high << 32); |
| 1491 | } |
| 1492 | |
| 1493 | uint64_t HELPER(neon_subl_u16)(uint64_t a, uint64_t b) |
| 1494 | { |
| 1495 | uint64_t mask; |
| 1496 | mask = (a ^ ~b) & 0x8000800080008000ull; |
| 1497 | a |= 0x8000800080008000ull; |
| 1498 | b &= ~0x8000800080008000ull; |
| 1499 | return (a - b) ^ mask; |
| 1500 | } |
| 1501 | |
| 1502 | uint64_t HELPER(neon_subl_u32)(uint64_t a, uint64_t b) |
| 1503 | { |
| 1504 | uint64_t mask; |
| 1505 | mask = (a ^ ~b) & 0x8000000080000000ull; |
| 1506 | a |= 0x8000000080000000ull; |
| 1507 | b &= ~0x8000000080000000ull; |
| 1508 | return (a - b) ^ mask; |
| 1509 | } |
| 1510 | |
| 1511 | uint64_t HELPER(neon_addl_saturate_s32)(CPUState *env, uint64_t a, uint64_t b) |
| 1512 | { |
| 1513 | uint32_t x, y; |
| 1514 | uint32_t low, high; |
| 1515 | |
| 1516 | x = a; |
| 1517 | y = b; |
| 1518 | low = x + y; |
| 1519 | if (((low ^ x) & SIGNBIT) && !((x ^ y) & SIGNBIT)) { |
| 1520 | SET_QC(); |
| 1521 | low = ((int32_t)x >> 31) ^ ~SIGNBIT; |
| 1522 | } |
| 1523 | x = a >> 32; |
| 1524 | y = b >> 32; |
| 1525 | high = x + y; |
| 1526 | if (((high ^ x) & SIGNBIT) && !((x ^ y) & SIGNBIT)) { |
| 1527 | SET_QC(); |
| 1528 | high = ((int32_t)x >> 31) ^ ~SIGNBIT; |
| 1529 | } |
| 1530 | return low | ((uint64_t)high << 32); |
| 1531 | } |
| 1532 | |
| 1533 | uint64_t HELPER(neon_addl_saturate_s64)(CPUState *env, uint64_t a, uint64_t b) |
| 1534 | { |
| 1535 | uint64_t result; |
| 1536 | |
| 1537 | result = a + b; |
| 1538 | if (((result ^ a) & SIGNBIT64) && !((a ^ b) & SIGNBIT64)) { |
| 1539 | SET_QC(); |
| 1540 | result = ((int64_t)a >> 63) ^ ~SIGNBIT64; |
| 1541 | } |
| 1542 | return result; |
| 1543 | } |
| 1544 | |
| 1545 | #define DO_ABD(dest, x, y, type) do { \ |
| 1546 | type tmp_x = x; \ |
| 1547 | type tmp_y = y; \ |
| 1548 | dest = ((tmp_x > tmp_y) ? tmp_x - tmp_y : tmp_y - tmp_x); \ |
| 1549 | } while(0) |
| 1550 | |
| 1551 | uint64_t HELPER(neon_abdl_u16)(uint32_t a, uint32_t b) |
| 1552 | { |
| 1553 | uint64_t tmp; |
| 1554 | uint64_t result; |
| 1555 | DO_ABD(result, a, b, uint8_t); |
| 1556 | DO_ABD(tmp, a >> 8, b >> 8, uint8_t); |
| 1557 | result |= tmp << 16; |
| 1558 | DO_ABD(tmp, a >> 16, b >> 16, uint8_t); |
| 1559 | result |= tmp << 32; |
| 1560 | DO_ABD(tmp, a >> 24, b >> 24, uint8_t); |
| 1561 | result |= tmp << 48; |
| 1562 | return result; |
| 1563 | } |
| 1564 | |
| 1565 | uint64_t HELPER(neon_abdl_s16)(uint32_t a, uint32_t b) |
| 1566 | { |
| 1567 | uint64_t tmp; |
| 1568 | uint64_t result; |
| 1569 | DO_ABD(result, a, b, int8_t); |
| 1570 | DO_ABD(tmp, a >> 8, b >> 8, int8_t); |
| 1571 | result |= tmp << 16; |
| 1572 | DO_ABD(tmp, a >> 16, b >> 16, int8_t); |
| 1573 | result |= tmp << 32; |
| 1574 | DO_ABD(tmp, a >> 24, b >> 24, int8_t); |
| 1575 | result |= tmp << 48; |
| 1576 | return result; |
| 1577 | } |
| 1578 | |
| 1579 | uint64_t HELPER(neon_abdl_u32)(uint32_t a, uint32_t b) |
| 1580 | { |
| 1581 | uint64_t tmp; |
| 1582 | uint64_t result; |
| 1583 | DO_ABD(result, a, b, uint16_t); |
| 1584 | DO_ABD(tmp, a >> 16, b >> 16, uint16_t); |
| 1585 | return result | (tmp << 32); |
| 1586 | } |
| 1587 | |
| 1588 | uint64_t HELPER(neon_abdl_s32)(uint32_t a, uint32_t b) |
| 1589 | { |
| 1590 | uint64_t tmp; |
| 1591 | uint64_t result; |
| 1592 | DO_ABD(result, a, b, int16_t); |
| 1593 | DO_ABD(tmp, a >> 16, b >> 16, int16_t); |
| 1594 | return result | (tmp << 32); |
| 1595 | } |
| 1596 | |
| 1597 | uint64_t HELPER(neon_abdl_u64)(uint32_t a, uint32_t b) |
| 1598 | { |
| 1599 | uint64_t result; |
| 1600 | DO_ABD(result, a, b, uint32_t); |
| 1601 | return result; |
| 1602 | } |
| 1603 | |
| 1604 | uint64_t HELPER(neon_abdl_s64)(uint32_t a, uint32_t b) |
| 1605 | { |
| 1606 | uint64_t result; |
| 1607 | DO_ABD(result, a, b, int32_t); |
| 1608 | return result; |
| 1609 | } |
| 1610 | #undef DO_ABD |
| 1611 | |
| 1612 | /* Widening multiply. Named type is the source type. */ |
| 1613 | #define DO_MULL(dest, x, y, type1, type2) do { \ |
| 1614 | type1 tmp_x = x; \ |
| 1615 | type1 tmp_y = y; \ |
| 1616 | dest = (type2)((type2)tmp_x * (type2)tmp_y); \ |
| 1617 | } while(0) |
| 1618 | |
| 1619 | uint64_t HELPER(neon_mull_u8)(uint32_t a, uint32_t b) |
| 1620 | { |
| 1621 | uint64_t tmp; |
| 1622 | uint64_t result; |
| 1623 | |
| 1624 | DO_MULL(result, a, b, uint8_t, uint16_t); |
| 1625 | DO_MULL(tmp, a >> 8, b >> 8, uint8_t, uint16_t); |
| 1626 | result |= tmp << 16; |
| 1627 | DO_MULL(tmp, a >> 16, b >> 16, uint8_t, uint16_t); |
| 1628 | result |= tmp << 32; |
| 1629 | DO_MULL(tmp, a >> 24, b >> 24, uint8_t, uint16_t); |
| 1630 | result |= tmp << 48; |
| 1631 | return result; |
| 1632 | } |
| 1633 | |
| 1634 | uint64_t HELPER(neon_mull_s8)(uint32_t a, uint32_t b) |
| 1635 | { |
| 1636 | uint64_t tmp; |
| 1637 | uint64_t result; |
| 1638 | |
| 1639 | DO_MULL(result, a, b, int8_t, uint16_t); |
| 1640 | DO_MULL(tmp, a >> 8, b >> 8, int8_t, uint16_t); |
| 1641 | result |= tmp << 16; |
| 1642 | DO_MULL(tmp, a >> 16, b >> 16, int8_t, uint16_t); |
| 1643 | result |= tmp << 32; |
| 1644 | DO_MULL(tmp, a >> 24, b >> 24, int8_t, uint16_t); |
| 1645 | result |= tmp << 48; |
| 1646 | return result; |
| 1647 | } |
| 1648 | |
| 1649 | uint64_t HELPER(neon_mull_u16)(uint32_t a, uint32_t b) |
| 1650 | { |
| 1651 | uint64_t tmp; |
| 1652 | uint64_t result; |
| 1653 | |
| 1654 | DO_MULL(result, a, b, uint16_t, uint32_t); |
| 1655 | DO_MULL(tmp, a >> 16, b >> 16, uint16_t, uint32_t); |
| 1656 | return result | (tmp << 32); |
| 1657 | } |
| 1658 | |
| 1659 | uint64_t HELPER(neon_mull_s16)(uint32_t a, uint32_t b) |
| 1660 | { |
| 1661 | uint64_t tmp; |
| 1662 | uint64_t result; |
| 1663 | |
| 1664 | DO_MULL(result, a, b, int16_t, uint32_t); |
| 1665 | DO_MULL(tmp, a >> 16, b >> 16, int16_t, uint32_t); |
| 1666 | return result | (tmp << 32); |
| 1667 | } |
| 1668 | |
| 1669 | uint64_t HELPER(neon_negl_u16)(uint64_t x) |
| 1670 | { |
| 1671 | uint16_t tmp; |
| 1672 | uint64_t result; |
| 1673 | result = (uint16_t)-x; |
| 1674 | tmp = -(x >> 16); |
| 1675 | result |= (uint64_t)tmp << 16; |
| 1676 | tmp = -(x >> 32); |
| 1677 | result |= (uint64_t)tmp << 32; |
| 1678 | tmp = -(x >> 48); |
| 1679 | result |= (uint64_t)tmp << 48; |
| 1680 | return result; |
| 1681 | } |
| 1682 | |
pbrook | ad69471 | 2008-03-31 03:48:30 +0000 | [diff] [blame] | 1683 | uint64_t HELPER(neon_negl_u32)(uint64_t x) |
| 1684 | { |
| 1685 | uint32_t low = -x; |
| 1686 | uint32_t high = -(x >> 32); |
| 1687 | return low | ((uint64_t)high << 32); |
| 1688 | } |
| 1689 | |
| 1690 | /* FIXME: There should be a native op for this. */ |
| 1691 | uint64_t HELPER(neon_negl_u64)(uint64_t x) |
| 1692 | { |
| 1693 | return -x; |
| 1694 | } |
| 1695 | |
| 1696 | /* Saturnating sign manuipulation. */ |
| 1697 | /* ??? Make these use NEON_VOP1 */ |
| 1698 | #define DO_QABS8(x) do { \ |
| 1699 | if (x == (int8_t)0x80) { \ |
| 1700 | x = 0x7f; \ |
| 1701 | SET_QC(); \ |
| 1702 | } else if (x < 0) { \ |
| 1703 | x = -x; \ |
| 1704 | }} while (0) |
| 1705 | uint32_t HELPER(neon_qabs_s8)(CPUState *env, uint32_t x) |
| 1706 | { |
| 1707 | neon_s8 vec; |
| 1708 | NEON_UNPACK(neon_s8, vec, x); |
| 1709 | DO_QABS8(vec.v1); |
| 1710 | DO_QABS8(vec.v2); |
| 1711 | DO_QABS8(vec.v3); |
| 1712 | DO_QABS8(vec.v4); |
| 1713 | NEON_PACK(neon_s8, x, vec); |
| 1714 | return x; |
| 1715 | } |
| 1716 | #undef DO_QABS8 |
| 1717 | |
| 1718 | #define DO_QNEG8(x) do { \ |
| 1719 | if (x == (int8_t)0x80) { \ |
| 1720 | x = 0x7f; \ |
| 1721 | SET_QC(); \ |
| 1722 | } else { \ |
| 1723 | x = -x; \ |
| 1724 | }} while (0) |
| 1725 | uint32_t HELPER(neon_qneg_s8)(CPUState *env, uint32_t x) |
| 1726 | { |
| 1727 | neon_s8 vec; |
| 1728 | NEON_UNPACK(neon_s8, vec, x); |
| 1729 | DO_QNEG8(vec.v1); |
| 1730 | DO_QNEG8(vec.v2); |
| 1731 | DO_QNEG8(vec.v3); |
| 1732 | DO_QNEG8(vec.v4); |
| 1733 | NEON_PACK(neon_s8, x, vec); |
| 1734 | return x; |
| 1735 | } |
| 1736 | #undef DO_QNEG8 |
| 1737 | |
| 1738 | #define DO_QABS16(x) do { \ |
| 1739 | if (x == (int16_t)0x8000) { \ |
| 1740 | x = 0x7fff; \ |
| 1741 | SET_QC(); \ |
| 1742 | } else if (x < 0) { \ |
| 1743 | x = -x; \ |
| 1744 | }} while (0) |
| 1745 | uint32_t HELPER(neon_qabs_s16)(CPUState *env, uint32_t x) |
| 1746 | { |
| 1747 | neon_s16 vec; |
| 1748 | NEON_UNPACK(neon_s16, vec, x); |
| 1749 | DO_QABS16(vec.v1); |
| 1750 | DO_QABS16(vec.v2); |
| 1751 | NEON_PACK(neon_s16, x, vec); |
| 1752 | return x; |
| 1753 | } |
| 1754 | #undef DO_QABS16 |
| 1755 | |
| 1756 | #define DO_QNEG16(x) do { \ |
| 1757 | if (x == (int16_t)0x8000) { \ |
| 1758 | x = 0x7fff; \ |
| 1759 | SET_QC(); \ |
| 1760 | } else { \ |
| 1761 | x = -x; \ |
| 1762 | }} while (0) |
| 1763 | uint32_t HELPER(neon_qneg_s16)(CPUState *env, uint32_t x) |
| 1764 | { |
| 1765 | neon_s16 vec; |
| 1766 | NEON_UNPACK(neon_s16, vec, x); |
| 1767 | DO_QNEG16(vec.v1); |
| 1768 | DO_QNEG16(vec.v2); |
| 1769 | NEON_PACK(neon_s16, x, vec); |
| 1770 | return x; |
| 1771 | } |
| 1772 | #undef DO_QNEG16 |
| 1773 | |
| 1774 | uint32_t HELPER(neon_qabs_s32)(CPUState *env, uint32_t x) |
| 1775 | { |
| 1776 | if (x == SIGNBIT) { |
| 1777 | SET_QC(); |
| 1778 | x = ~SIGNBIT; |
| 1779 | } else if ((int32_t)x < 0) { |
| 1780 | x = -x; |
| 1781 | } |
| 1782 | return x; |
| 1783 | } |
| 1784 | |
| 1785 | uint32_t HELPER(neon_qneg_s32)(CPUState *env, uint32_t x) |
| 1786 | { |
| 1787 | if (x == SIGNBIT) { |
| 1788 | SET_QC(); |
| 1789 | x = ~SIGNBIT; |
| 1790 | } else { |
| 1791 | x = -x; |
| 1792 | } |
| 1793 | return x; |
| 1794 | } |
| 1795 | |
| 1796 | /* NEON Float helpers. */ |
| 1797 | uint32_t HELPER(neon_min_f32)(uint32_t a, uint32_t b) |
| 1798 | { |
| 1799 | float32 f0 = vfp_itos(a); |
| 1800 | float32 f1 = vfp_itos(b); |
| 1801 | return (float32_compare_quiet(f0, f1, NFS) == -1) ? a : b; |
| 1802 | } |
| 1803 | |
| 1804 | uint32_t HELPER(neon_max_f32)(uint32_t a, uint32_t b) |
| 1805 | { |
| 1806 | float32 f0 = vfp_itos(a); |
| 1807 | float32 f1 = vfp_itos(b); |
| 1808 | return (float32_compare_quiet(f0, f1, NFS) == 1) ? a : b; |
| 1809 | } |
| 1810 | |
| 1811 | uint32_t HELPER(neon_abd_f32)(uint32_t a, uint32_t b) |
| 1812 | { |
| 1813 | float32 f0 = vfp_itos(a); |
| 1814 | float32 f1 = vfp_itos(b); |
| 1815 | return vfp_stoi((float32_compare_quiet(f0, f1, NFS) == 1) |
| 1816 | ? float32_sub(f0, f1, NFS) |
| 1817 | : float32_sub(f1, f0, NFS)); |
| 1818 | } |
| 1819 | |
| 1820 | uint32_t HELPER(neon_add_f32)(uint32_t a, uint32_t b) |
| 1821 | { |
| 1822 | return vfp_stoi(float32_add(vfp_itos(a), vfp_itos(b), NFS)); |
| 1823 | } |
| 1824 | |
| 1825 | uint32_t HELPER(neon_sub_f32)(uint32_t a, uint32_t b) |
| 1826 | { |
| 1827 | return vfp_stoi(float32_sub(vfp_itos(a), vfp_itos(b), NFS)); |
| 1828 | } |
| 1829 | |
| 1830 | uint32_t HELPER(neon_mul_f32)(uint32_t a, uint32_t b) |
| 1831 | { |
| 1832 | return vfp_stoi(float32_mul(vfp_itos(a), vfp_itos(b), NFS)); |
| 1833 | } |
| 1834 | |
| 1835 | /* Floating point comparisons produce an integer result. */ |
| 1836 | #define NEON_VOP_FCMP(name, cmp) \ |
| 1837 | uint32_t HELPER(neon_##name)(uint32_t a, uint32_t b) \ |
| 1838 | { \ |
| 1839 | if (float32_compare_quiet(vfp_itos(a), vfp_itos(b), NFS) cmp 0) \ |
| 1840 | return ~0; \ |
| 1841 | else \ |
| 1842 | return 0; \ |
| 1843 | } |
| 1844 | |
| 1845 | NEON_VOP_FCMP(ceq_f32, ==) |
| 1846 | NEON_VOP_FCMP(cge_f32, >=) |
| 1847 | NEON_VOP_FCMP(cgt_f32, >) |
| 1848 | |
| 1849 | uint32_t HELPER(neon_acge_f32)(uint32_t a, uint32_t b) |
| 1850 | { |
| 1851 | float32 f0 = float32_abs(vfp_itos(a)); |
| 1852 | float32 f1 = float32_abs(vfp_itos(b)); |
| 1853 | return (float32_compare_quiet(f0, f1,NFS) >= 0) ? ~0 : 0; |
| 1854 | } |
| 1855 | |
| 1856 | uint32_t HELPER(neon_acgt_f32)(uint32_t a, uint32_t b) |
| 1857 | { |
| 1858 | float32 f0 = float32_abs(vfp_itos(a)); |
| 1859 | float32 f1 = float32_abs(vfp_itos(b)); |
| 1860 | return (float32_compare_quiet(f0, f1, NFS) > 0) ? ~0 : 0; |
| 1861 | } |
Peter Maydell | 02acedf | 2011-02-14 10:22:48 +0000 | [diff] [blame] | 1862 | |
| 1863 | #define ELEM(V, N, SIZE) (((V) >> ((N) * (SIZE))) & ((1ull << (SIZE)) - 1)) |
| 1864 | |
| 1865 | void HELPER(neon_qunzip8)(CPUState *env, uint32_t rd, uint32_t rm) |
| 1866 | { |
| 1867 | uint64_t zm0 = float64_val(env->vfp.regs[rm]); |
| 1868 | uint64_t zm1 = float64_val(env->vfp.regs[rm + 1]); |
| 1869 | uint64_t zd0 = float64_val(env->vfp.regs[rd]); |
| 1870 | uint64_t zd1 = float64_val(env->vfp.regs[rd + 1]); |
| 1871 | uint64_t d0 = ELEM(zd0, 0, 8) | (ELEM(zd0, 2, 8) << 8) |
| 1872 | | (ELEM(zd0, 4, 8) << 16) | (ELEM(zd0, 6, 8) << 24) |
| 1873 | | (ELEM(zd1, 0, 8) << 32) | (ELEM(zd1, 2, 8) << 40) |
| 1874 | | (ELEM(zd1, 4, 8) << 48) | (ELEM(zd1, 6, 8) << 56); |
| 1875 | uint64_t d1 = ELEM(zm0, 0, 8) | (ELEM(zm0, 2, 8) << 8) |
| 1876 | | (ELEM(zm0, 4, 8) << 16) | (ELEM(zm0, 6, 8) << 24) |
| 1877 | | (ELEM(zm1, 0, 8) << 32) | (ELEM(zm1, 2, 8) << 40) |
| 1878 | | (ELEM(zm1, 4, 8) << 48) | (ELEM(zm1, 6, 8) << 56); |
| 1879 | uint64_t m0 = ELEM(zd0, 1, 8) | (ELEM(zd0, 3, 8) << 8) |
| 1880 | | (ELEM(zd0, 5, 8) << 16) | (ELEM(zd0, 7, 8) << 24) |
| 1881 | | (ELEM(zd1, 1, 8) << 32) | (ELEM(zd1, 3, 8) << 40) |
| 1882 | | (ELEM(zd1, 5, 8) << 48) | (ELEM(zd1, 7, 8) << 56); |
| 1883 | uint64_t m1 = ELEM(zm0, 1, 8) | (ELEM(zm0, 3, 8) << 8) |
| 1884 | | (ELEM(zm0, 5, 8) << 16) | (ELEM(zm0, 7, 8) << 24) |
| 1885 | | (ELEM(zm1, 1, 8) << 32) | (ELEM(zm1, 3, 8) << 40) |
| 1886 | | (ELEM(zm1, 5, 8) << 48) | (ELEM(zm1, 7, 8) << 56); |
| 1887 | env->vfp.regs[rm] = make_float64(m0); |
| 1888 | env->vfp.regs[rm + 1] = make_float64(m1); |
| 1889 | env->vfp.regs[rd] = make_float64(d0); |
| 1890 | env->vfp.regs[rd + 1] = make_float64(d1); |
| 1891 | } |
| 1892 | |
| 1893 | void HELPER(neon_qunzip16)(CPUState *env, uint32_t rd, uint32_t rm) |
| 1894 | { |
| 1895 | uint64_t zm0 = float64_val(env->vfp.regs[rm]); |
| 1896 | uint64_t zm1 = float64_val(env->vfp.regs[rm + 1]); |
| 1897 | uint64_t zd0 = float64_val(env->vfp.regs[rd]); |
| 1898 | uint64_t zd1 = float64_val(env->vfp.regs[rd + 1]); |
| 1899 | uint64_t d0 = ELEM(zd0, 0, 16) | (ELEM(zd0, 2, 16) << 16) |
| 1900 | | (ELEM(zd1, 0, 16) << 32) | (ELEM(zd1, 2, 16) << 48); |
| 1901 | uint64_t d1 = ELEM(zm0, 0, 16) | (ELEM(zm0, 2, 16) << 16) |
| 1902 | | (ELEM(zm1, 0, 16) << 32) | (ELEM(zm1, 2, 16) << 48); |
| 1903 | uint64_t m0 = ELEM(zd0, 1, 16) | (ELEM(zd0, 3, 16) << 16) |
| 1904 | | (ELEM(zd1, 1, 16) << 32) | (ELEM(zd1, 3, 16) << 48); |
| 1905 | uint64_t m1 = ELEM(zm0, 1, 16) | (ELEM(zm0, 3, 16) << 16) |
| 1906 | | (ELEM(zm1, 1, 16) << 32) | (ELEM(zm1, 3, 16) << 48); |
| 1907 | env->vfp.regs[rm] = make_float64(m0); |
| 1908 | env->vfp.regs[rm + 1] = make_float64(m1); |
| 1909 | env->vfp.regs[rd] = make_float64(d0); |
| 1910 | env->vfp.regs[rd + 1] = make_float64(d1); |
| 1911 | } |
| 1912 | |
| 1913 | void HELPER(neon_qunzip32)(CPUState *env, uint32_t rd, uint32_t rm) |
| 1914 | { |
| 1915 | uint64_t zm0 = float64_val(env->vfp.regs[rm]); |
| 1916 | uint64_t zm1 = float64_val(env->vfp.regs[rm + 1]); |
| 1917 | uint64_t zd0 = float64_val(env->vfp.regs[rd]); |
| 1918 | uint64_t zd1 = float64_val(env->vfp.regs[rd + 1]); |
| 1919 | uint64_t d0 = ELEM(zd0, 0, 32) | (ELEM(zd1, 0, 32) << 32); |
| 1920 | uint64_t d1 = ELEM(zm0, 0, 32) | (ELEM(zm1, 0, 32) << 32); |
| 1921 | uint64_t m0 = ELEM(zd0, 1, 32) | (ELEM(zd1, 1, 32) << 32); |
| 1922 | uint64_t m1 = ELEM(zm0, 1, 32) | (ELEM(zm1, 1, 32) << 32); |
| 1923 | env->vfp.regs[rm] = make_float64(m0); |
| 1924 | env->vfp.regs[rm + 1] = make_float64(m1); |
| 1925 | env->vfp.regs[rd] = make_float64(d0); |
| 1926 | env->vfp.regs[rd + 1] = make_float64(d1); |
| 1927 | } |
| 1928 | |
| 1929 | void HELPER(neon_unzip8)(CPUState *env, uint32_t rd, uint32_t rm) |
| 1930 | { |
| 1931 | uint64_t zm = float64_val(env->vfp.regs[rm]); |
| 1932 | uint64_t zd = float64_val(env->vfp.regs[rd]); |
| 1933 | uint64_t d0 = ELEM(zd, 0, 8) | (ELEM(zd, 2, 8) << 8) |
| 1934 | | (ELEM(zd, 4, 8) << 16) | (ELEM(zd, 6, 8) << 24) |
| 1935 | | (ELEM(zm, 0, 8) << 32) | (ELEM(zm, 2, 8) << 40) |
| 1936 | | (ELEM(zm, 4, 8) << 48) | (ELEM(zm, 6, 8) << 56); |
| 1937 | uint64_t m0 = ELEM(zd, 1, 8) | (ELEM(zd, 3, 8) << 8) |
| 1938 | | (ELEM(zd, 5, 8) << 16) | (ELEM(zd, 7, 8) << 24) |
| 1939 | | (ELEM(zm, 1, 8) << 32) | (ELEM(zm, 3, 8) << 40) |
| 1940 | | (ELEM(zm, 5, 8) << 48) | (ELEM(zm, 7, 8) << 56); |
| 1941 | env->vfp.regs[rm] = make_float64(m0); |
| 1942 | env->vfp.regs[rd] = make_float64(d0); |
| 1943 | } |
| 1944 | |
| 1945 | void HELPER(neon_unzip16)(CPUState *env, uint32_t rd, uint32_t rm) |
| 1946 | { |
| 1947 | uint64_t zm = float64_val(env->vfp.regs[rm]); |
| 1948 | uint64_t zd = float64_val(env->vfp.regs[rd]); |
| 1949 | uint64_t d0 = ELEM(zd, 0, 16) | (ELEM(zd, 2, 16) << 16) |
| 1950 | | (ELEM(zm, 0, 16) << 32) | (ELEM(zm, 2, 16) << 48); |
| 1951 | uint64_t m0 = ELEM(zd, 1, 16) | (ELEM(zd, 3, 16) << 16) |
| 1952 | | (ELEM(zm, 1, 16) << 32) | (ELEM(zm, 3, 16) << 48); |
| 1953 | env->vfp.regs[rm] = make_float64(m0); |
| 1954 | env->vfp.regs[rd] = make_float64(d0); |
| 1955 | } |
Peter Maydell | d68a6f3 | 2011-02-14 10:22:49 +0000 | [diff] [blame] | 1956 | |
| 1957 | void HELPER(neon_qzip8)(CPUState *env, uint32_t rd, uint32_t rm) |
| 1958 | { |
| 1959 | uint64_t zm0 = float64_val(env->vfp.regs[rm]); |
| 1960 | uint64_t zm1 = float64_val(env->vfp.regs[rm + 1]); |
| 1961 | uint64_t zd0 = float64_val(env->vfp.regs[rd]); |
| 1962 | uint64_t zd1 = float64_val(env->vfp.regs[rd + 1]); |
| 1963 | uint64_t d0 = ELEM(zd0, 0, 8) | (ELEM(zm0, 0, 8) << 8) |
| 1964 | | (ELEM(zd0, 1, 8) << 16) | (ELEM(zm0, 1, 8) << 24) |
| 1965 | | (ELEM(zd0, 2, 8) << 32) | (ELEM(zm0, 2, 8) << 40) |
| 1966 | | (ELEM(zd0, 3, 8) << 48) | (ELEM(zm0, 3, 8) << 56); |
| 1967 | uint64_t d1 = ELEM(zd0, 4, 8) | (ELEM(zm0, 4, 8) << 8) |
| 1968 | | (ELEM(zd0, 5, 8) << 16) | (ELEM(zm0, 5, 8) << 24) |
| 1969 | | (ELEM(zd0, 6, 8) << 32) | (ELEM(zm0, 6, 8) << 40) |
| 1970 | | (ELEM(zd0, 7, 8) << 48) | (ELEM(zm0, 7, 8) << 56); |
| 1971 | uint64_t m0 = ELEM(zd1, 0, 8) | (ELEM(zm1, 0, 8) << 8) |
| 1972 | | (ELEM(zd1, 1, 8) << 16) | (ELEM(zm1, 1, 8) << 24) |
| 1973 | | (ELEM(zd1, 2, 8) << 32) | (ELEM(zm1, 2, 8) << 40) |
| 1974 | | (ELEM(zd1, 3, 8) << 48) | (ELEM(zm1, 3, 8) << 56); |
| 1975 | uint64_t m1 = ELEM(zd1, 4, 8) | (ELEM(zm1, 4, 8) << 8) |
| 1976 | | (ELEM(zd1, 5, 8) << 16) | (ELEM(zm1, 5, 8) << 24) |
| 1977 | | (ELEM(zd1, 6, 8) << 32) | (ELEM(zm1, 6, 8) << 40) |
| 1978 | | (ELEM(zd1, 7, 8) << 48) | (ELEM(zm1, 7, 8) << 56); |
| 1979 | env->vfp.regs[rm] = make_float64(m0); |
| 1980 | env->vfp.regs[rm + 1] = make_float64(m1); |
| 1981 | env->vfp.regs[rd] = make_float64(d0); |
| 1982 | env->vfp.regs[rd + 1] = make_float64(d1); |
| 1983 | } |
| 1984 | |
| 1985 | void HELPER(neon_qzip16)(CPUState *env, uint32_t rd, uint32_t rm) |
| 1986 | { |
| 1987 | uint64_t zm0 = float64_val(env->vfp.regs[rm]); |
| 1988 | uint64_t zm1 = float64_val(env->vfp.regs[rm + 1]); |
| 1989 | uint64_t zd0 = float64_val(env->vfp.regs[rd]); |
| 1990 | uint64_t zd1 = float64_val(env->vfp.regs[rd + 1]); |
| 1991 | uint64_t d0 = ELEM(zd0, 0, 16) | (ELEM(zm0, 0, 16) << 16) |
| 1992 | | (ELEM(zd0, 1, 16) << 32) | (ELEM(zm0, 1, 16) << 48); |
| 1993 | uint64_t d1 = ELEM(zd0, 2, 16) | (ELEM(zm0, 2, 16) << 16) |
| 1994 | | (ELEM(zd0, 3, 16) << 32) | (ELEM(zm0, 3, 16) << 48); |
| 1995 | uint64_t m0 = ELEM(zd1, 0, 16) | (ELEM(zm1, 0, 16) << 16) |
| 1996 | | (ELEM(zd1, 1, 16) << 32) | (ELEM(zm1, 1, 16) << 48); |
| 1997 | uint64_t m1 = ELEM(zd1, 2, 16) | (ELEM(zm1, 2, 16) << 16) |
| 1998 | | (ELEM(zd1, 3, 16) << 32) | (ELEM(zm1, 3, 16) << 48); |
| 1999 | env->vfp.regs[rm] = make_float64(m0); |
| 2000 | env->vfp.regs[rm + 1] = make_float64(m1); |
| 2001 | env->vfp.regs[rd] = make_float64(d0); |
| 2002 | env->vfp.regs[rd + 1] = make_float64(d1); |
| 2003 | } |
| 2004 | |
| 2005 | void HELPER(neon_qzip32)(CPUState *env, uint32_t rd, uint32_t rm) |
| 2006 | { |
| 2007 | uint64_t zm0 = float64_val(env->vfp.regs[rm]); |
| 2008 | uint64_t zm1 = float64_val(env->vfp.regs[rm + 1]); |
| 2009 | uint64_t zd0 = float64_val(env->vfp.regs[rd]); |
| 2010 | uint64_t zd1 = float64_val(env->vfp.regs[rd + 1]); |
| 2011 | uint64_t d0 = ELEM(zd0, 0, 32) | (ELEM(zm0, 0, 32) << 32); |
| 2012 | uint64_t d1 = ELEM(zd0, 1, 32) | (ELEM(zm0, 1, 32) << 32); |
| 2013 | uint64_t m0 = ELEM(zd1, 0, 32) | (ELEM(zm1, 0, 32) << 32); |
| 2014 | uint64_t m1 = ELEM(zd1, 1, 32) | (ELEM(zm1, 1, 32) << 32); |
| 2015 | env->vfp.regs[rm] = make_float64(m0); |
| 2016 | env->vfp.regs[rm + 1] = make_float64(m1); |
| 2017 | env->vfp.regs[rd] = make_float64(d0); |
| 2018 | env->vfp.regs[rd + 1] = make_float64(d1); |
| 2019 | } |
| 2020 | |
| 2021 | void HELPER(neon_zip8)(CPUState *env, uint32_t rd, uint32_t rm) |
| 2022 | { |
| 2023 | uint64_t zm = float64_val(env->vfp.regs[rm]); |
| 2024 | uint64_t zd = float64_val(env->vfp.regs[rd]); |
| 2025 | uint64_t d0 = ELEM(zd, 0, 8) | (ELEM(zm, 0, 8) << 8) |
| 2026 | | (ELEM(zd, 1, 8) << 16) | (ELEM(zm, 1, 8) << 24) |
| 2027 | | (ELEM(zd, 2, 8) << 32) | (ELEM(zm, 2, 8) << 40) |
| 2028 | | (ELEM(zd, 3, 8) << 48) | (ELEM(zm, 3, 8) << 56); |
| 2029 | uint64_t m0 = ELEM(zd, 4, 8) | (ELEM(zm, 4, 8) << 8) |
| 2030 | | (ELEM(zd, 5, 8) << 16) | (ELEM(zm, 5, 8) << 24) |
| 2031 | | (ELEM(zd, 6, 8) << 32) | (ELEM(zm, 6, 8) << 40) |
| 2032 | | (ELEM(zd, 7, 8) << 48) | (ELEM(zm, 7, 8) << 56); |
| 2033 | env->vfp.regs[rm] = make_float64(m0); |
| 2034 | env->vfp.regs[rd] = make_float64(d0); |
| 2035 | } |
| 2036 | |
| 2037 | void HELPER(neon_zip16)(CPUState *env, uint32_t rd, uint32_t rm) |
| 2038 | { |
| 2039 | uint64_t zm = float64_val(env->vfp.regs[rm]); |
| 2040 | uint64_t zd = float64_val(env->vfp.regs[rd]); |
| 2041 | uint64_t d0 = ELEM(zd, 0, 16) | (ELEM(zm, 0, 16) << 16) |
| 2042 | | (ELEM(zd, 1, 16) << 32) | (ELEM(zm, 1, 16) << 48); |
| 2043 | uint64_t m0 = ELEM(zd, 2, 16) | (ELEM(zm, 2, 16) << 16) |
| 2044 | | (ELEM(zd, 3, 16) << 32) | (ELEM(zm, 3, 16) << 48); |
| 2045 | env->vfp.regs[rm] = make_float64(m0); |
| 2046 | env->vfp.regs[rd] = make_float64(d0); |
| 2047 | } |