Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 1 | /* |
| 2 | * PowerPC integer and vector emulation helpers for QEMU. |
| 3 | * |
| 4 | * Copyright (c) 2003-2007 Jocelyn Mayer |
| 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 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 | #include "cpu.h" |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 20 | #include "host-utils.h" |
| 21 | #include "helper.h" |
| 22 | |
| 23 | #include "helper_regs.h" |
| 24 | /*****************************************************************************/ |
| 25 | /* Fixed point operations helpers */ |
| 26 | #if defined(TARGET_PPC64) |
| 27 | |
| 28 | /* multiply high word */ |
| 29 | uint64_t helper_mulhd(uint64_t arg1, uint64_t arg2) |
| 30 | { |
| 31 | uint64_t tl, th; |
| 32 | |
| 33 | muls64(&tl, &th, arg1, arg2); |
| 34 | return th; |
| 35 | } |
| 36 | |
| 37 | /* multiply high word unsigned */ |
| 38 | uint64_t helper_mulhdu(uint64_t arg1, uint64_t arg2) |
| 39 | { |
| 40 | uint64_t tl, th; |
| 41 | |
| 42 | mulu64(&tl, &th, arg1, arg2); |
| 43 | return th; |
| 44 | } |
| 45 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 46 | uint64_t helper_mulldo(CPUPPCState *env, uint64_t arg1, uint64_t arg2) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 47 | { |
| 48 | int64_t th; |
| 49 | uint64_t tl; |
| 50 | |
| 51 | muls64(&tl, (uint64_t *)&th, arg1, arg2); |
| 52 | /* If th != 0 && th != -1, then we had an overflow */ |
| 53 | if (likely((uint64_t)(th + 1) <= 1)) { |
| 54 | env->xer &= ~(1 << XER_OV); |
| 55 | } else { |
| 56 | env->xer |= (1 << XER_OV) | (1 << XER_SO); |
| 57 | } |
| 58 | return (int64_t)tl; |
| 59 | } |
| 60 | #endif |
| 61 | |
| 62 | target_ulong helper_cntlzw(target_ulong t) |
| 63 | { |
| 64 | return clz32(t); |
| 65 | } |
| 66 | |
| 67 | #if defined(TARGET_PPC64) |
| 68 | target_ulong helper_cntlzd(target_ulong t) |
| 69 | { |
| 70 | return clz64(t); |
| 71 | } |
| 72 | #endif |
| 73 | |
| 74 | /* shift right arithmetic helper */ |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 75 | target_ulong helper_sraw(CPUPPCState *env, target_ulong value, |
| 76 | target_ulong shift) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 77 | { |
| 78 | int32_t ret; |
| 79 | |
| 80 | if (likely(!(shift & 0x20))) { |
| 81 | if (likely((uint32_t)shift != 0)) { |
| 82 | shift &= 0x1f; |
| 83 | ret = (int32_t)value >> shift; |
| 84 | if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) { |
| 85 | env->xer &= ~(1 << XER_CA); |
| 86 | } else { |
| 87 | env->xer |= (1 << XER_CA); |
| 88 | } |
| 89 | } else { |
| 90 | ret = (int32_t)value; |
| 91 | env->xer &= ~(1 << XER_CA); |
| 92 | } |
| 93 | } else { |
| 94 | ret = (int32_t)value >> 31; |
| 95 | if (ret) { |
| 96 | env->xer |= (1 << XER_CA); |
| 97 | } else { |
| 98 | env->xer &= ~(1 << XER_CA); |
| 99 | } |
| 100 | } |
| 101 | return (target_long)ret; |
| 102 | } |
| 103 | |
| 104 | #if defined(TARGET_PPC64) |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 105 | target_ulong helper_srad(CPUPPCState *env, target_ulong value, |
| 106 | target_ulong shift) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 107 | { |
| 108 | int64_t ret; |
| 109 | |
| 110 | if (likely(!(shift & 0x40))) { |
| 111 | if (likely((uint64_t)shift != 0)) { |
| 112 | shift &= 0x3f; |
| 113 | ret = (int64_t)value >> shift; |
| 114 | if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) { |
| 115 | env->xer &= ~(1 << XER_CA); |
| 116 | } else { |
| 117 | env->xer |= (1 << XER_CA); |
| 118 | } |
| 119 | } else { |
| 120 | ret = (int64_t)value; |
| 121 | env->xer &= ~(1 << XER_CA); |
| 122 | } |
| 123 | } else { |
| 124 | ret = (int64_t)value >> 63; |
| 125 | if (ret) { |
| 126 | env->xer |= (1 << XER_CA); |
| 127 | } else { |
| 128 | env->xer &= ~(1 << XER_CA); |
| 129 | } |
| 130 | } |
| 131 | return ret; |
| 132 | } |
| 133 | #endif |
| 134 | |
| 135 | #if defined(TARGET_PPC64) |
| 136 | target_ulong helper_popcntb(target_ulong val) |
| 137 | { |
| 138 | val = (val & 0x5555555555555555ULL) + ((val >> 1) & |
| 139 | 0x5555555555555555ULL); |
| 140 | val = (val & 0x3333333333333333ULL) + ((val >> 2) & |
| 141 | 0x3333333333333333ULL); |
| 142 | val = (val & 0x0f0f0f0f0f0f0f0fULL) + ((val >> 4) & |
| 143 | 0x0f0f0f0f0f0f0f0fULL); |
| 144 | return val; |
| 145 | } |
| 146 | |
| 147 | target_ulong helper_popcntw(target_ulong val) |
| 148 | { |
| 149 | val = (val & 0x5555555555555555ULL) + ((val >> 1) & |
| 150 | 0x5555555555555555ULL); |
| 151 | val = (val & 0x3333333333333333ULL) + ((val >> 2) & |
| 152 | 0x3333333333333333ULL); |
| 153 | val = (val & 0x0f0f0f0f0f0f0f0fULL) + ((val >> 4) & |
| 154 | 0x0f0f0f0f0f0f0f0fULL); |
| 155 | val = (val & 0x00ff00ff00ff00ffULL) + ((val >> 8) & |
| 156 | 0x00ff00ff00ff00ffULL); |
| 157 | val = (val & 0x0000ffff0000ffffULL) + ((val >> 16) & |
| 158 | 0x0000ffff0000ffffULL); |
| 159 | return val; |
| 160 | } |
| 161 | |
| 162 | target_ulong helper_popcntd(target_ulong val) |
| 163 | { |
| 164 | return ctpop64(val); |
| 165 | } |
| 166 | #else |
| 167 | target_ulong helper_popcntb(target_ulong val) |
| 168 | { |
| 169 | val = (val & 0x55555555) + ((val >> 1) & 0x55555555); |
| 170 | val = (val & 0x33333333) + ((val >> 2) & 0x33333333); |
| 171 | val = (val & 0x0f0f0f0f) + ((val >> 4) & 0x0f0f0f0f); |
| 172 | return val; |
| 173 | } |
| 174 | |
| 175 | target_ulong helper_popcntw(target_ulong val) |
| 176 | { |
| 177 | val = (val & 0x55555555) + ((val >> 1) & 0x55555555); |
| 178 | val = (val & 0x33333333) + ((val >> 2) & 0x33333333); |
| 179 | val = (val & 0x0f0f0f0f) + ((val >> 4) & 0x0f0f0f0f); |
| 180 | val = (val & 0x00ff00ff) + ((val >> 8) & 0x00ff00ff); |
| 181 | val = (val & 0x0000ffff) + ((val >> 16) & 0x0000ffff); |
| 182 | return val; |
| 183 | } |
| 184 | #endif |
| 185 | |
| 186 | /*****************************************************************************/ |
| 187 | /* PowerPC 601 specific instructions (POWER bridge) */ |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 188 | target_ulong helper_div(CPUPPCState *env, target_ulong arg1, target_ulong arg2) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 189 | { |
| 190 | uint64_t tmp = (uint64_t)arg1 << 32 | env->spr[SPR_MQ]; |
| 191 | |
| 192 | if (((int32_t)tmp == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
| 193 | (int32_t)arg2 == 0) { |
| 194 | env->spr[SPR_MQ] = 0; |
| 195 | return INT32_MIN; |
| 196 | } else { |
| 197 | env->spr[SPR_MQ] = tmp % arg2; |
| 198 | return tmp / (int32_t)arg2; |
| 199 | } |
| 200 | } |
| 201 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 202 | target_ulong helper_divo(CPUPPCState *env, target_ulong arg1, |
| 203 | target_ulong arg2) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 204 | { |
| 205 | uint64_t tmp = (uint64_t)arg1 << 32 | env->spr[SPR_MQ]; |
| 206 | |
| 207 | if (((int32_t)tmp == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
| 208 | (int32_t)arg2 == 0) { |
| 209 | env->xer |= (1 << XER_OV) | (1 << XER_SO); |
| 210 | env->spr[SPR_MQ] = 0; |
| 211 | return INT32_MIN; |
| 212 | } else { |
| 213 | env->spr[SPR_MQ] = tmp % arg2; |
| 214 | tmp /= (int32_t)arg2; |
| 215 | if ((int32_t)tmp != tmp) { |
| 216 | env->xer |= (1 << XER_OV) | (1 << XER_SO); |
| 217 | } else { |
| 218 | env->xer &= ~(1 << XER_OV); |
| 219 | } |
| 220 | return tmp; |
| 221 | } |
| 222 | } |
| 223 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 224 | target_ulong helper_divs(CPUPPCState *env, target_ulong arg1, |
| 225 | target_ulong arg2) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 226 | { |
| 227 | if (((int32_t)arg1 == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
| 228 | (int32_t)arg2 == 0) { |
| 229 | env->spr[SPR_MQ] = 0; |
| 230 | return INT32_MIN; |
| 231 | } else { |
| 232 | env->spr[SPR_MQ] = (int32_t)arg1 % (int32_t)arg2; |
| 233 | return (int32_t)arg1 / (int32_t)arg2; |
| 234 | } |
| 235 | } |
| 236 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 237 | target_ulong helper_divso(CPUPPCState *env, target_ulong arg1, |
| 238 | target_ulong arg2) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 239 | { |
| 240 | if (((int32_t)arg1 == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
| 241 | (int32_t)arg2 == 0) { |
| 242 | env->xer |= (1 << XER_OV) | (1 << XER_SO); |
| 243 | env->spr[SPR_MQ] = 0; |
| 244 | return INT32_MIN; |
| 245 | } else { |
| 246 | env->xer &= ~(1 << XER_OV); |
| 247 | env->spr[SPR_MQ] = (int32_t)arg1 % (int32_t)arg2; |
| 248 | return (int32_t)arg1 / (int32_t)arg2; |
| 249 | } |
| 250 | } |
| 251 | |
| 252 | /*****************************************************************************/ |
| 253 | /* 602 specific instructions */ |
| 254 | /* mfrom is the most crazy instruction ever seen, imho ! */ |
| 255 | /* Real implementation uses a ROM table. Do the same */ |
| 256 | /* Extremely decomposed: |
| 257 | * -arg / 256 |
| 258 | * return 256 * log10(10 + 1.0) + 0.5 |
| 259 | */ |
| 260 | #if !defined(CONFIG_USER_ONLY) |
| 261 | target_ulong helper_602_mfrom(target_ulong arg) |
| 262 | { |
| 263 | if (likely(arg < 602)) { |
| 264 | #include "mfrom_table.c" |
| 265 | return mfrom_ROM_table[arg]; |
| 266 | } else { |
| 267 | return 0; |
| 268 | } |
| 269 | } |
| 270 | #endif |
| 271 | |
| 272 | /*****************************************************************************/ |
| 273 | /* Altivec extension helpers */ |
| 274 | #if defined(HOST_WORDS_BIGENDIAN) |
| 275 | #define HI_IDX 0 |
| 276 | #define LO_IDX 1 |
| 277 | #else |
| 278 | #define HI_IDX 1 |
| 279 | #define LO_IDX 0 |
| 280 | #endif |
| 281 | |
| 282 | #if defined(HOST_WORDS_BIGENDIAN) |
| 283 | #define VECTOR_FOR_INORDER_I(index, element) \ |
| 284 | for (index = 0; index < ARRAY_SIZE(r->element); index++) |
| 285 | #else |
| 286 | #define VECTOR_FOR_INORDER_I(index, element) \ |
| 287 | for (index = ARRAY_SIZE(r->element)-1; index >= 0; index--) |
| 288 | #endif |
| 289 | |
| 290 | /* If X is a NaN, store the corresponding QNaN into RESULT. Otherwise, |
| 291 | * execute the following block. */ |
| 292 | #define DO_HANDLE_NAN(result, x) \ |
| 293 | if (float32_is_any_nan(x)) { \ |
| 294 | CPU_FloatU __f; \ |
| 295 | __f.f = x; \ |
| 296 | __f.l = __f.l | (1 << 22); /* Set QNaN bit. */ \ |
| 297 | result = __f.f; \ |
| 298 | } else |
| 299 | |
| 300 | #define HANDLE_NAN1(result, x) \ |
| 301 | DO_HANDLE_NAN(result, x) |
| 302 | #define HANDLE_NAN2(result, x, y) \ |
| 303 | DO_HANDLE_NAN(result, x) DO_HANDLE_NAN(result, y) |
| 304 | #define HANDLE_NAN3(result, x, y, z) \ |
| 305 | DO_HANDLE_NAN(result, x) DO_HANDLE_NAN(result, y) DO_HANDLE_NAN(result, z) |
| 306 | |
| 307 | /* Saturating arithmetic helpers. */ |
| 308 | #define SATCVT(from, to, from_type, to_type, min, max) \ |
| 309 | static inline to_type cvt##from##to(from_type x, int *sat) \ |
| 310 | { \ |
| 311 | to_type r; \ |
| 312 | \ |
| 313 | if (x < (from_type)min) { \ |
| 314 | r = min; \ |
| 315 | *sat = 1; \ |
| 316 | } else if (x > (from_type)max) { \ |
| 317 | r = max; \ |
| 318 | *sat = 1; \ |
| 319 | } else { \ |
| 320 | r = x; \ |
| 321 | } \ |
| 322 | return r; \ |
| 323 | } |
| 324 | #define SATCVTU(from, to, from_type, to_type, min, max) \ |
| 325 | static inline to_type cvt##from##to(from_type x, int *sat) \ |
| 326 | { \ |
| 327 | to_type r; \ |
| 328 | \ |
| 329 | if (x > (from_type)max) { \ |
| 330 | r = max; \ |
| 331 | *sat = 1; \ |
| 332 | } else { \ |
| 333 | r = x; \ |
| 334 | } \ |
| 335 | return r; \ |
| 336 | } |
| 337 | SATCVT(sh, sb, int16_t, int8_t, INT8_MIN, INT8_MAX) |
| 338 | SATCVT(sw, sh, int32_t, int16_t, INT16_MIN, INT16_MAX) |
| 339 | SATCVT(sd, sw, int64_t, int32_t, INT32_MIN, INT32_MAX) |
| 340 | |
| 341 | SATCVTU(uh, ub, uint16_t, uint8_t, 0, UINT8_MAX) |
| 342 | SATCVTU(uw, uh, uint32_t, uint16_t, 0, UINT16_MAX) |
| 343 | SATCVTU(ud, uw, uint64_t, uint32_t, 0, UINT32_MAX) |
| 344 | SATCVT(sh, ub, int16_t, uint8_t, 0, UINT8_MAX) |
| 345 | SATCVT(sw, uh, int32_t, uint16_t, 0, UINT16_MAX) |
| 346 | SATCVT(sd, uw, int64_t, uint32_t, 0, UINT32_MAX) |
| 347 | #undef SATCVT |
| 348 | #undef SATCVTU |
| 349 | |
| 350 | void helper_lvsl(ppc_avr_t *r, target_ulong sh) |
| 351 | { |
| 352 | int i, j = (sh & 0xf); |
| 353 | |
| 354 | VECTOR_FOR_INORDER_I(i, u8) { |
| 355 | r->u8[i] = j++; |
| 356 | } |
| 357 | } |
| 358 | |
| 359 | void helper_lvsr(ppc_avr_t *r, target_ulong sh) |
| 360 | { |
| 361 | int i, j = 0x10 - (sh & 0xf); |
| 362 | |
| 363 | VECTOR_FOR_INORDER_I(i, u8) { |
| 364 | r->u8[i] = j++; |
| 365 | } |
| 366 | } |
| 367 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 368 | void helper_mtvscr(CPUPPCState *env, ppc_avr_t *r) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 369 | { |
| 370 | #if defined(HOST_WORDS_BIGENDIAN) |
| 371 | env->vscr = r->u32[3]; |
| 372 | #else |
| 373 | env->vscr = r->u32[0]; |
| 374 | #endif |
| 375 | set_flush_to_zero(vscr_nj, &env->vec_status); |
| 376 | } |
| 377 | |
| 378 | void helper_vaddcuw(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
| 379 | { |
| 380 | int i; |
| 381 | |
| 382 | for (i = 0; i < ARRAY_SIZE(r->u32); i++) { |
| 383 | r->u32[i] = ~a->u32[i] < b->u32[i]; |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | #define VARITH_DO(name, op, element) \ |
| 388 | void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 389 | { \ |
| 390 | int i; \ |
| 391 | \ |
| 392 | for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 393 | r->element[i] = a->element[i] op b->element[i]; \ |
| 394 | } \ |
| 395 | } |
| 396 | #define VARITH(suffix, element) \ |
| 397 | VARITH_DO(add##suffix, +, element) \ |
| 398 | VARITH_DO(sub##suffix, -, element) |
| 399 | VARITH(ubm, u8) |
| 400 | VARITH(uhm, u16) |
| 401 | VARITH(uwm, u32) |
| 402 | #undef VARITH_DO |
| 403 | #undef VARITH |
| 404 | |
| 405 | #define VARITHFP(suffix, func) \ |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 406 | void helper_v##suffix(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, \ |
| 407 | ppc_avr_t *b) \ |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 408 | { \ |
| 409 | int i; \ |
| 410 | \ |
| 411 | for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| 412 | HANDLE_NAN2(r->f[i], a->f[i], b->f[i]) { \ |
| 413 | r->f[i] = func(a->f[i], b->f[i], &env->vec_status); \ |
| 414 | } \ |
| 415 | } \ |
| 416 | } |
| 417 | VARITHFP(addfp, float32_add) |
| 418 | VARITHFP(subfp, float32_sub) |
| 419 | #undef VARITHFP |
| 420 | |
| 421 | #define VARITHSAT_CASE(type, op, cvt, element) \ |
| 422 | { \ |
| 423 | type result = (type)a->element[i] op (type)b->element[i]; \ |
| 424 | r->element[i] = cvt(result, &sat); \ |
| 425 | } |
| 426 | |
| 427 | #define VARITHSAT_DO(name, op, optype, cvt, element) \ |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 428 | void helper_v##name(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, \ |
| 429 | ppc_avr_t *b) \ |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 430 | { \ |
| 431 | int sat = 0; \ |
| 432 | int i; \ |
| 433 | \ |
| 434 | for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 435 | switch (sizeof(r->element[0])) { \ |
| 436 | case 1: \ |
| 437 | VARITHSAT_CASE(optype, op, cvt, element); \ |
| 438 | break; \ |
| 439 | case 2: \ |
| 440 | VARITHSAT_CASE(optype, op, cvt, element); \ |
| 441 | break; \ |
| 442 | case 4: \ |
| 443 | VARITHSAT_CASE(optype, op, cvt, element); \ |
| 444 | break; \ |
| 445 | } \ |
| 446 | } \ |
| 447 | if (sat) { \ |
| 448 | env->vscr |= (1 << VSCR_SAT); \ |
| 449 | } \ |
| 450 | } |
| 451 | #define VARITHSAT_SIGNED(suffix, element, optype, cvt) \ |
| 452 | VARITHSAT_DO(adds##suffix##s, +, optype, cvt, element) \ |
| 453 | VARITHSAT_DO(subs##suffix##s, -, optype, cvt, element) |
| 454 | #define VARITHSAT_UNSIGNED(suffix, element, optype, cvt) \ |
| 455 | VARITHSAT_DO(addu##suffix##s, +, optype, cvt, element) \ |
| 456 | VARITHSAT_DO(subu##suffix##s, -, optype, cvt, element) |
| 457 | VARITHSAT_SIGNED(b, s8, int16_t, cvtshsb) |
| 458 | VARITHSAT_SIGNED(h, s16, int32_t, cvtswsh) |
| 459 | VARITHSAT_SIGNED(w, s32, int64_t, cvtsdsw) |
| 460 | VARITHSAT_UNSIGNED(b, u8, uint16_t, cvtshub) |
| 461 | VARITHSAT_UNSIGNED(h, u16, uint32_t, cvtswuh) |
| 462 | VARITHSAT_UNSIGNED(w, u32, uint64_t, cvtsduw) |
| 463 | #undef VARITHSAT_CASE |
| 464 | #undef VARITHSAT_DO |
| 465 | #undef VARITHSAT_SIGNED |
| 466 | #undef VARITHSAT_UNSIGNED |
| 467 | |
| 468 | #define VAVG_DO(name, element, etype) \ |
| 469 | void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 470 | { \ |
| 471 | int i; \ |
| 472 | \ |
| 473 | for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 474 | etype x = (etype)a->element[i] + (etype)b->element[i] + 1; \ |
| 475 | r->element[i] = x >> 1; \ |
| 476 | } \ |
| 477 | } |
| 478 | |
| 479 | #define VAVG(type, signed_element, signed_type, unsigned_element, \ |
| 480 | unsigned_type) \ |
| 481 | VAVG_DO(avgs##type, signed_element, signed_type) \ |
| 482 | VAVG_DO(avgu##type, unsigned_element, unsigned_type) |
| 483 | VAVG(b, s8, int16_t, u8, uint16_t) |
| 484 | VAVG(h, s16, int32_t, u16, uint32_t) |
| 485 | VAVG(w, s32, int64_t, u32, uint64_t) |
| 486 | #undef VAVG_DO |
| 487 | #undef VAVG |
| 488 | |
| 489 | #define VCF(suffix, cvt, element) \ |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 490 | void helper_vcf##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| 491 | ppc_avr_t *b, uint32_t uim) \ |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 492 | { \ |
| 493 | int i; \ |
| 494 | \ |
| 495 | for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| 496 | float32 t = cvt(b->element[i], &env->vec_status); \ |
| 497 | r->f[i] = float32_scalbn(t, -uim, &env->vec_status); \ |
| 498 | } \ |
| 499 | } |
| 500 | VCF(ux, uint32_to_float32, u32) |
| 501 | VCF(sx, int32_to_float32, s32) |
| 502 | #undef VCF |
| 503 | |
| 504 | #define VCMP_DO(suffix, compare, element, record) \ |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 505 | void helper_vcmp##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| 506 | ppc_avr_t *a, ppc_avr_t *b) \ |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 507 | { \ |
| 508 | uint32_t ones = (uint32_t)-1; \ |
| 509 | uint32_t all = ones; \ |
| 510 | uint32_t none = 0; \ |
| 511 | int i; \ |
| 512 | \ |
| 513 | for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 514 | uint32_t result = (a->element[i] compare b->element[i] ? \ |
| 515 | ones : 0x0); \ |
| 516 | switch (sizeof(a->element[0])) { \ |
| 517 | case 4: \ |
| 518 | r->u32[i] = result; \ |
| 519 | break; \ |
| 520 | case 2: \ |
| 521 | r->u16[i] = result; \ |
| 522 | break; \ |
| 523 | case 1: \ |
| 524 | r->u8[i] = result; \ |
| 525 | break; \ |
| 526 | } \ |
| 527 | all &= result; \ |
| 528 | none |= result; \ |
| 529 | } \ |
| 530 | if (record) { \ |
| 531 | env->crf[6] = ((all != 0) << 3) | ((none == 0) << 1); \ |
| 532 | } \ |
| 533 | } |
| 534 | #define VCMP(suffix, compare, element) \ |
| 535 | VCMP_DO(suffix, compare, element, 0) \ |
| 536 | VCMP_DO(suffix##_dot, compare, element, 1) |
| 537 | VCMP(equb, ==, u8) |
| 538 | VCMP(equh, ==, u16) |
| 539 | VCMP(equw, ==, u32) |
| 540 | VCMP(gtub, >, u8) |
| 541 | VCMP(gtuh, >, u16) |
| 542 | VCMP(gtuw, >, u32) |
| 543 | VCMP(gtsb, >, s8) |
| 544 | VCMP(gtsh, >, s16) |
| 545 | VCMP(gtsw, >, s32) |
| 546 | #undef VCMP_DO |
| 547 | #undef VCMP |
| 548 | |
| 549 | #define VCMPFP_DO(suffix, compare, order, record) \ |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 550 | void helper_vcmp##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| 551 | ppc_avr_t *a, ppc_avr_t *b) \ |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 552 | { \ |
| 553 | uint32_t ones = (uint32_t)-1; \ |
| 554 | uint32_t all = ones; \ |
| 555 | uint32_t none = 0; \ |
| 556 | int i; \ |
| 557 | \ |
| 558 | for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| 559 | uint32_t result; \ |
| 560 | int rel = float32_compare_quiet(a->f[i], b->f[i], \ |
| 561 | &env->vec_status); \ |
| 562 | if (rel == float_relation_unordered) { \ |
| 563 | result = 0; \ |
| 564 | } else if (rel compare order) { \ |
| 565 | result = ones; \ |
| 566 | } else { \ |
| 567 | result = 0; \ |
| 568 | } \ |
| 569 | r->u32[i] = result; \ |
| 570 | all &= result; \ |
| 571 | none |= result; \ |
| 572 | } \ |
| 573 | if (record) { \ |
| 574 | env->crf[6] = ((all != 0) << 3) | ((none == 0) << 1); \ |
| 575 | } \ |
| 576 | } |
| 577 | #define VCMPFP(suffix, compare, order) \ |
| 578 | VCMPFP_DO(suffix, compare, order, 0) \ |
| 579 | VCMPFP_DO(suffix##_dot, compare, order, 1) |
| 580 | VCMPFP(eqfp, ==, float_relation_equal) |
| 581 | VCMPFP(gefp, !=, float_relation_less) |
| 582 | VCMPFP(gtfp, ==, float_relation_greater) |
| 583 | #undef VCMPFP_DO |
| 584 | #undef VCMPFP |
| 585 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 586 | static inline void vcmpbfp_internal(CPUPPCState *env, ppc_avr_t *r, |
| 587 | ppc_avr_t *a, ppc_avr_t *b, int record) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 588 | { |
| 589 | int i; |
| 590 | int all_in = 0; |
| 591 | |
| 592 | for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| 593 | int le_rel = float32_compare_quiet(a->f[i], b->f[i], &env->vec_status); |
| 594 | if (le_rel == float_relation_unordered) { |
| 595 | r->u32[i] = 0xc0000000; |
| 596 | /* ALL_IN does not need to be updated here. */ |
| 597 | } else { |
| 598 | float32 bneg = float32_chs(b->f[i]); |
| 599 | int ge_rel = float32_compare_quiet(a->f[i], bneg, &env->vec_status); |
| 600 | int le = le_rel != float_relation_greater; |
| 601 | int ge = ge_rel != float_relation_less; |
| 602 | |
| 603 | r->u32[i] = ((!le) << 31) | ((!ge) << 30); |
| 604 | all_in |= (!le | !ge); |
| 605 | } |
| 606 | } |
| 607 | if (record) { |
| 608 | env->crf[6] = (all_in == 0) << 1; |
| 609 | } |
| 610 | } |
| 611 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 612 | void helper_vcmpbfp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 613 | { |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 614 | vcmpbfp_internal(env, r, a, b, 0); |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 615 | } |
| 616 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 617 | void helper_vcmpbfp_dot(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| 618 | ppc_avr_t *b) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 619 | { |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 620 | vcmpbfp_internal(env, r, a, b, 1); |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 621 | } |
| 622 | |
| 623 | #define VCT(suffix, satcvt, element) \ |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 624 | void helper_vct##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| 625 | ppc_avr_t *b, uint32_t uim) \ |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 626 | { \ |
| 627 | int i; \ |
| 628 | int sat = 0; \ |
| 629 | float_status s = env->vec_status; \ |
| 630 | \ |
| 631 | set_float_rounding_mode(float_round_to_zero, &s); \ |
| 632 | for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| 633 | if (float32_is_any_nan(b->f[i])) { \ |
| 634 | r->element[i] = 0; \ |
| 635 | } else { \ |
| 636 | float64 t = float32_to_float64(b->f[i], &s); \ |
| 637 | int64_t j; \ |
| 638 | \ |
| 639 | t = float64_scalbn(t, uim, &s); \ |
| 640 | j = float64_to_int64(t, &s); \ |
| 641 | r->element[i] = satcvt(j, &sat); \ |
| 642 | } \ |
| 643 | } \ |
| 644 | if (sat) { \ |
| 645 | env->vscr |= (1 << VSCR_SAT); \ |
| 646 | } \ |
| 647 | } |
| 648 | VCT(uxs, cvtsduw, u32) |
| 649 | VCT(sxs, cvtsdsw, s32) |
| 650 | #undef VCT |
| 651 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 652 | void helper_vmaddfp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, |
| 653 | ppc_avr_t *c) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 654 | { |
| 655 | int i; |
| 656 | |
| 657 | for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| 658 | HANDLE_NAN3(r->f[i], a->f[i], b->f[i], c->f[i]) { |
| 659 | /* Need to do the computation in higher precision and round |
| 660 | * once at the end. */ |
| 661 | float64 af, bf, cf, t; |
| 662 | |
| 663 | af = float32_to_float64(a->f[i], &env->vec_status); |
| 664 | bf = float32_to_float64(b->f[i], &env->vec_status); |
| 665 | cf = float32_to_float64(c->f[i], &env->vec_status); |
| 666 | t = float64_mul(af, cf, &env->vec_status); |
| 667 | t = float64_add(t, bf, &env->vec_status); |
| 668 | r->f[i] = float64_to_float32(t, &env->vec_status); |
| 669 | } |
| 670 | } |
| 671 | } |
| 672 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 673 | void helper_vmhaddshs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| 674 | ppc_avr_t *b, ppc_avr_t *c) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 675 | { |
| 676 | int sat = 0; |
| 677 | int i; |
| 678 | |
| 679 | for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
| 680 | int32_t prod = a->s16[i] * b->s16[i]; |
| 681 | int32_t t = (int32_t)c->s16[i] + (prod >> 15); |
| 682 | |
| 683 | r->s16[i] = cvtswsh(t, &sat); |
| 684 | } |
| 685 | |
| 686 | if (sat) { |
| 687 | env->vscr |= (1 << VSCR_SAT); |
| 688 | } |
| 689 | } |
| 690 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 691 | void helper_vmhraddshs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| 692 | ppc_avr_t *b, ppc_avr_t *c) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 693 | { |
| 694 | int sat = 0; |
| 695 | int i; |
| 696 | |
| 697 | for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
| 698 | int32_t prod = a->s16[i] * b->s16[i] + 0x00004000; |
| 699 | int32_t t = (int32_t)c->s16[i] + (prod >> 15); |
| 700 | r->s16[i] = cvtswsh(t, &sat); |
| 701 | } |
| 702 | |
| 703 | if (sat) { |
| 704 | env->vscr |= (1 << VSCR_SAT); |
| 705 | } |
| 706 | } |
| 707 | |
| 708 | #define VMINMAX_DO(name, compare, element) \ |
| 709 | void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 710 | { \ |
| 711 | int i; \ |
| 712 | \ |
| 713 | for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 714 | if (a->element[i] compare b->element[i]) { \ |
| 715 | r->element[i] = b->element[i]; \ |
| 716 | } else { \ |
| 717 | r->element[i] = a->element[i]; \ |
| 718 | } \ |
| 719 | } \ |
| 720 | } |
| 721 | #define VMINMAX(suffix, element) \ |
| 722 | VMINMAX_DO(min##suffix, >, element) \ |
| 723 | VMINMAX_DO(max##suffix, <, element) |
| 724 | VMINMAX(sb, s8) |
| 725 | VMINMAX(sh, s16) |
| 726 | VMINMAX(sw, s32) |
| 727 | VMINMAX(ub, u8) |
| 728 | VMINMAX(uh, u16) |
| 729 | VMINMAX(uw, u32) |
| 730 | #undef VMINMAX_DO |
| 731 | #undef VMINMAX |
| 732 | |
| 733 | #define VMINMAXFP(suffix, rT, rF) \ |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 734 | void helper_v##suffix(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, \ |
| 735 | ppc_avr_t *b) \ |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 736 | { \ |
| 737 | int i; \ |
| 738 | \ |
| 739 | for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| 740 | HANDLE_NAN2(r->f[i], a->f[i], b->f[i]) { \ |
| 741 | if (float32_lt_quiet(a->f[i], b->f[i], \ |
| 742 | &env->vec_status)) { \ |
| 743 | r->f[i] = rT->f[i]; \ |
| 744 | } else { \ |
| 745 | r->f[i] = rF->f[i]; \ |
| 746 | } \ |
| 747 | } \ |
| 748 | } \ |
| 749 | } |
| 750 | VMINMAXFP(minfp, a, b) |
| 751 | VMINMAXFP(maxfp, b, a) |
| 752 | #undef VMINMAXFP |
| 753 | |
| 754 | void helper_vmladduhm(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) |
| 755 | { |
| 756 | int i; |
| 757 | |
| 758 | for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
| 759 | int32_t prod = a->s16[i] * b->s16[i]; |
| 760 | r->s16[i] = (int16_t) (prod + c->s16[i]); |
| 761 | } |
| 762 | } |
| 763 | |
| 764 | #define VMRG_DO(name, element, highp) \ |
| 765 | void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 766 | { \ |
| 767 | ppc_avr_t result; \ |
| 768 | int i; \ |
| 769 | size_t n_elems = ARRAY_SIZE(r->element); \ |
| 770 | \ |
| 771 | for (i = 0; i < n_elems / 2; i++) { \ |
| 772 | if (highp) { \ |
| 773 | result.element[i*2+HI_IDX] = a->element[i]; \ |
| 774 | result.element[i*2+LO_IDX] = b->element[i]; \ |
| 775 | } else { \ |
| 776 | result.element[n_elems - i * 2 - (1 + HI_IDX)] = \ |
| 777 | b->element[n_elems - i - 1]; \ |
| 778 | result.element[n_elems - i * 2 - (1 + LO_IDX)] = \ |
| 779 | a->element[n_elems - i - 1]; \ |
| 780 | } \ |
| 781 | } \ |
| 782 | *r = result; \ |
| 783 | } |
| 784 | #if defined(HOST_WORDS_BIGENDIAN) |
| 785 | #define MRGHI 0 |
| 786 | #define MRGLO 1 |
| 787 | #else |
| 788 | #define MRGHI 1 |
| 789 | #define MRGLO 0 |
| 790 | #endif |
| 791 | #define VMRG(suffix, element) \ |
| 792 | VMRG_DO(mrgl##suffix, element, MRGHI) \ |
| 793 | VMRG_DO(mrgh##suffix, element, MRGLO) |
| 794 | VMRG(b, u8) |
| 795 | VMRG(h, u16) |
| 796 | VMRG(w, u32) |
| 797 | #undef VMRG_DO |
| 798 | #undef VMRG |
| 799 | #undef MRGHI |
| 800 | #undef MRGLO |
| 801 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 802 | void helper_vmsummbm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| 803 | ppc_avr_t *b, ppc_avr_t *c) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 804 | { |
| 805 | int32_t prod[16]; |
| 806 | int i; |
| 807 | |
| 808 | for (i = 0; i < ARRAY_SIZE(r->s8); i++) { |
| 809 | prod[i] = (int32_t)a->s8[i] * b->u8[i]; |
| 810 | } |
| 811 | |
| 812 | VECTOR_FOR_INORDER_I(i, s32) { |
| 813 | r->s32[i] = c->s32[i] + prod[4 * i] + prod[4 * i + 1] + |
| 814 | prod[4 * i + 2] + prod[4 * i + 3]; |
| 815 | } |
| 816 | } |
| 817 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 818 | void helper_vmsumshm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| 819 | ppc_avr_t *b, ppc_avr_t *c) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 820 | { |
| 821 | int32_t prod[8]; |
| 822 | int i; |
| 823 | |
| 824 | for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
| 825 | prod[i] = a->s16[i] * b->s16[i]; |
| 826 | } |
| 827 | |
| 828 | VECTOR_FOR_INORDER_I(i, s32) { |
| 829 | r->s32[i] = c->s32[i] + prod[2 * i] + prod[2 * i + 1]; |
| 830 | } |
| 831 | } |
| 832 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 833 | void helper_vmsumshs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| 834 | ppc_avr_t *b, ppc_avr_t *c) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 835 | { |
| 836 | int32_t prod[8]; |
| 837 | int i; |
| 838 | int sat = 0; |
| 839 | |
| 840 | for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
| 841 | prod[i] = (int32_t)a->s16[i] * b->s16[i]; |
| 842 | } |
| 843 | |
| 844 | VECTOR_FOR_INORDER_I(i, s32) { |
| 845 | int64_t t = (int64_t)c->s32[i] + prod[2 * i] + prod[2 * i + 1]; |
| 846 | |
| 847 | r->u32[i] = cvtsdsw(t, &sat); |
| 848 | } |
| 849 | |
| 850 | if (sat) { |
| 851 | env->vscr |= (1 << VSCR_SAT); |
| 852 | } |
| 853 | } |
| 854 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 855 | void helper_vmsumubm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| 856 | ppc_avr_t *b, ppc_avr_t *c) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 857 | { |
| 858 | uint16_t prod[16]; |
| 859 | int i; |
| 860 | |
| 861 | for (i = 0; i < ARRAY_SIZE(r->u8); i++) { |
| 862 | prod[i] = a->u8[i] * b->u8[i]; |
| 863 | } |
| 864 | |
| 865 | VECTOR_FOR_INORDER_I(i, u32) { |
| 866 | r->u32[i] = c->u32[i] + prod[4 * i] + prod[4 * i + 1] + |
| 867 | prod[4 * i + 2] + prod[4 * i + 3]; |
| 868 | } |
| 869 | } |
| 870 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 871 | void helper_vmsumuhm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| 872 | ppc_avr_t *b, ppc_avr_t *c) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 873 | { |
| 874 | uint32_t prod[8]; |
| 875 | int i; |
| 876 | |
| 877 | for (i = 0; i < ARRAY_SIZE(r->u16); i++) { |
| 878 | prod[i] = a->u16[i] * b->u16[i]; |
| 879 | } |
| 880 | |
| 881 | VECTOR_FOR_INORDER_I(i, u32) { |
| 882 | r->u32[i] = c->u32[i] + prod[2 * i] + prod[2 * i + 1]; |
| 883 | } |
| 884 | } |
| 885 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 886 | void helper_vmsumuhs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| 887 | ppc_avr_t *b, ppc_avr_t *c) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 888 | { |
| 889 | uint32_t prod[8]; |
| 890 | int i; |
| 891 | int sat = 0; |
| 892 | |
| 893 | for (i = 0; i < ARRAY_SIZE(r->u16); i++) { |
| 894 | prod[i] = a->u16[i] * b->u16[i]; |
| 895 | } |
| 896 | |
| 897 | VECTOR_FOR_INORDER_I(i, s32) { |
| 898 | uint64_t t = (uint64_t)c->u32[i] + prod[2 * i] + prod[2 * i + 1]; |
| 899 | |
| 900 | r->u32[i] = cvtuduw(t, &sat); |
| 901 | } |
| 902 | |
| 903 | if (sat) { |
| 904 | env->vscr |= (1 << VSCR_SAT); |
| 905 | } |
| 906 | } |
| 907 | |
| 908 | #define VMUL_DO(name, mul_element, prod_element, evenp) \ |
| 909 | void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 910 | { \ |
| 911 | int i; \ |
| 912 | \ |
| 913 | VECTOR_FOR_INORDER_I(i, prod_element) { \ |
| 914 | if (evenp) { \ |
| 915 | r->prod_element[i] = a->mul_element[i * 2 + HI_IDX] * \ |
| 916 | b->mul_element[i * 2 + HI_IDX]; \ |
| 917 | } else { \ |
| 918 | r->prod_element[i] = a->mul_element[i * 2 + LO_IDX] * \ |
| 919 | b->mul_element[i * 2 + LO_IDX]; \ |
| 920 | } \ |
| 921 | } \ |
| 922 | } |
| 923 | #define VMUL(suffix, mul_element, prod_element) \ |
| 924 | VMUL_DO(mule##suffix, mul_element, prod_element, 1) \ |
| 925 | VMUL_DO(mulo##suffix, mul_element, prod_element, 0) |
| 926 | VMUL(sb, s8, s16) |
| 927 | VMUL(sh, s16, s32) |
| 928 | VMUL(ub, u8, u16) |
| 929 | VMUL(uh, u16, u32) |
| 930 | #undef VMUL_DO |
| 931 | #undef VMUL |
| 932 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 933 | void helper_vnmsubfp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| 934 | ppc_avr_t *b, ppc_avr_t *c) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 935 | { |
| 936 | int i; |
| 937 | |
| 938 | for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| 939 | HANDLE_NAN3(r->f[i], a->f[i], b->f[i], c->f[i]) { |
| 940 | /* Need to do the computation is higher precision and round |
| 941 | * once at the end. */ |
| 942 | float64 af, bf, cf, t; |
| 943 | |
| 944 | af = float32_to_float64(a->f[i], &env->vec_status); |
| 945 | bf = float32_to_float64(b->f[i], &env->vec_status); |
| 946 | cf = float32_to_float64(c->f[i], &env->vec_status); |
| 947 | t = float64_mul(af, cf, &env->vec_status); |
| 948 | t = float64_sub(t, bf, &env->vec_status); |
| 949 | t = float64_chs(t); |
| 950 | r->f[i] = float64_to_float32(t, &env->vec_status); |
| 951 | } |
| 952 | } |
| 953 | } |
| 954 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 955 | void helper_vperm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, |
| 956 | ppc_avr_t *c) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 957 | { |
| 958 | ppc_avr_t result; |
| 959 | int i; |
| 960 | |
| 961 | VECTOR_FOR_INORDER_I(i, u8) { |
| 962 | int s = c->u8[i] & 0x1f; |
| 963 | #if defined(HOST_WORDS_BIGENDIAN) |
| 964 | int index = s & 0xf; |
| 965 | #else |
| 966 | int index = 15 - (s & 0xf); |
| 967 | #endif |
| 968 | |
| 969 | if (s & 0x10) { |
| 970 | result.u8[i] = b->u8[index]; |
| 971 | } else { |
| 972 | result.u8[i] = a->u8[index]; |
| 973 | } |
| 974 | } |
| 975 | *r = result; |
| 976 | } |
| 977 | |
| 978 | #if defined(HOST_WORDS_BIGENDIAN) |
| 979 | #define PKBIG 1 |
| 980 | #else |
| 981 | #define PKBIG 0 |
| 982 | #endif |
| 983 | void helper_vpkpx(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
| 984 | { |
| 985 | int i, j; |
| 986 | ppc_avr_t result; |
| 987 | #if defined(HOST_WORDS_BIGENDIAN) |
| 988 | const ppc_avr_t *x[2] = { a, b }; |
| 989 | #else |
| 990 | const ppc_avr_t *x[2] = { b, a }; |
| 991 | #endif |
| 992 | |
| 993 | VECTOR_FOR_INORDER_I(i, u64) { |
| 994 | VECTOR_FOR_INORDER_I(j, u32) { |
| 995 | uint32_t e = x[i]->u32[j]; |
| 996 | |
| 997 | result.u16[4*i+j] = (((e >> 9) & 0xfc00) | |
| 998 | ((e >> 6) & 0x3e0) | |
| 999 | ((e >> 3) & 0x1f)); |
| 1000 | } |
| 1001 | } |
| 1002 | *r = result; |
| 1003 | } |
| 1004 | |
| 1005 | #define VPK(suffix, from, to, cvt, dosat) \ |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 1006 | void helper_vpk##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| 1007 | ppc_avr_t *a, ppc_avr_t *b) \ |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 1008 | { \ |
| 1009 | int i; \ |
| 1010 | int sat = 0; \ |
| 1011 | ppc_avr_t result; \ |
| 1012 | ppc_avr_t *a0 = PKBIG ? a : b; \ |
| 1013 | ppc_avr_t *a1 = PKBIG ? b : a; \ |
| 1014 | \ |
| 1015 | VECTOR_FOR_INORDER_I(i, from) { \ |
| 1016 | result.to[i] = cvt(a0->from[i], &sat); \ |
| 1017 | result.to[i+ARRAY_SIZE(r->from)] = cvt(a1->from[i], &sat); \ |
| 1018 | } \ |
| 1019 | *r = result; \ |
| 1020 | if (dosat && sat) { \ |
| 1021 | env->vscr |= (1 << VSCR_SAT); \ |
| 1022 | } \ |
| 1023 | } |
| 1024 | #define I(x, y) (x) |
| 1025 | VPK(shss, s16, s8, cvtshsb, 1) |
| 1026 | VPK(shus, s16, u8, cvtshub, 1) |
| 1027 | VPK(swss, s32, s16, cvtswsh, 1) |
| 1028 | VPK(swus, s32, u16, cvtswuh, 1) |
| 1029 | VPK(uhus, u16, u8, cvtuhub, 1) |
| 1030 | VPK(uwus, u32, u16, cvtuwuh, 1) |
| 1031 | VPK(uhum, u16, u8, I, 0) |
| 1032 | VPK(uwum, u32, u16, I, 0) |
| 1033 | #undef I |
| 1034 | #undef VPK |
| 1035 | #undef PKBIG |
| 1036 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 1037 | void helper_vrefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 1038 | { |
| 1039 | int i; |
| 1040 | |
| 1041 | for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| 1042 | HANDLE_NAN1(r->f[i], b->f[i]) { |
| 1043 | r->f[i] = float32_div(float32_one, b->f[i], &env->vec_status); |
| 1044 | } |
| 1045 | } |
| 1046 | } |
| 1047 | |
| 1048 | #define VRFI(suffix, rounding) \ |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 1049 | void helper_vrfi##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| 1050 | ppc_avr_t *b) \ |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 1051 | { \ |
| 1052 | int i; \ |
| 1053 | float_status s = env->vec_status; \ |
| 1054 | \ |
| 1055 | set_float_rounding_mode(rounding, &s); \ |
| 1056 | for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| 1057 | HANDLE_NAN1(r->f[i], b->f[i]) { \ |
| 1058 | r->f[i] = float32_round_to_int (b->f[i], &s); \ |
| 1059 | } \ |
| 1060 | } \ |
| 1061 | } |
| 1062 | VRFI(n, float_round_nearest_even) |
| 1063 | VRFI(m, float_round_down) |
| 1064 | VRFI(p, float_round_up) |
| 1065 | VRFI(z, float_round_to_zero) |
| 1066 | #undef VRFI |
| 1067 | |
| 1068 | #define VROTATE(suffix, element) \ |
| 1069 | void helper_vrl##suffix(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 1070 | { \ |
| 1071 | int i; \ |
| 1072 | \ |
| 1073 | for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 1074 | unsigned int mask = ((1 << \ |
| 1075 | (3 + (sizeof(a->element[0]) >> 1))) \ |
| 1076 | - 1); \ |
| 1077 | unsigned int shift = b->element[i] & mask; \ |
| 1078 | r->element[i] = (a->element[i] << shift) | \ |
| 1079 | (a->element[i] >> (sizeof(a->element[0]) * 8 - shift)); \ |
| 1080 | } \ |
| 1081 | } |
| 1082 | VROTATE(b, u8) |
| 1083 | VROTATE(h, u16) |
| 1084 | VROTATE(w, u32) |
| 1085 | #undef VROTATE |
| 1086 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 1087 | void helper_vrsqrtefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 1088 | { |
| 1089 | int i; |
| 1090 | |
| 1091 | for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| 1092 | HANDLE_NAN1(r->f[i], b->f[i]) { |
| 1093 | float32 t = float32_sqrt(b->f[i], &env->vec_status); |
| 1094 | |
| 1095 | r->f[i] = float32_div(float32_one, t, &env->vec_status); |
| 1096 | } |
| 1097 | } |
| 1098 | } |
| 1099 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 1100 | void helper_vsel(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, |
| 1101 | ppc_avr_t *c) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 1102 | { |
| 1103 | r->u64[0] = (a->u64[0] & ~c->u64[0]) | (b->u64[0] & c->u64[0]); |
| 1104 | r->u64[1] = (a->u64[1] & ~c->u64[1]) | (b->u64[1] & c->u64[1]); |
| 1105 | } |
| 1106 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 1107 | void helper_vexptefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 1108 | { |
| 1109 | int i; |
| 1110 | |
| 1111 | for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| 1112 | HANDLE_NAN1(r->f[i], b->f[i]) { |
| 1113 | r->f[i] = float32_exp2(b->f[i], &env->vec_status); |
| 1114 | } |
| 1115 | } |
| 1116 | } |
| 1117 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 1118 | void helper_vlogefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 1119 | { |
| 1120 | int i; |
| 1121 | |
| 1122 | for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| 1123 | HANDLE_NAN1(r->f[i], b->f[i]) { |
| 1124 | r->f[i] = float32_log2(b->f[i], &env->vec_status); |
| 1125 | } |
| 1126 | } |
| 1127 | } |
| 1128 | |
| 1129 | #if defined(HOST_WORDS_BIGENDIAN) |
| 1130 | #define LEFT 0 |
| 1131 | #define RIGHT 1 |
| 1132 | #else |
| 1133 | #define LEFT 1 |
| 1134 | #define RIGHT 0 |
| 1135 | #endif |
| 1136 | /* The specification says that the results are undefined if all of the |
| 1137 | * shift counts are not identical. We check to make sure that they are |
| 1138 | * to conform to what real hardware appears to do. */ |
| 1139 | #define VSHIFT(suffix, leftp) \ |
| 1140 | void helper_vs##suffix(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 1141 | { \ |
| 1142 | int shift = b->u8[LO_IDX*15] & 0x7; \ |
| 1143 | int doit = 1; \ |
| 1144 | int i; \ |
| 1145 | \ |
| 1146 | for (i = 0; i < ARRAY_SIZE(r->u8); i++) { \ |
| 1147 | doit = doit && ((b->u8[i] & 0x7) == shift); \ |
| 1148 | } \ |
| 1149 | if (doit) { \ |
| 1150 | if (shift == 0) { \ |
| 1151 | *r = *a; \ |
| 1152 | } else if (leftp) { \ |
| 1153 | uint64_t carry = a->u64[LO_IDX] >> (64 - shift); \ |
| 1154 | \ |
| 1155 | r->u64[HI_IDX] = (a->u64[HI_IDX] << shift) | carry; \ |
| 1156 | r->u64[LO_IDX] = a->u64[LO_IDX] << shift; \ |
| 1157 | } else { \ |
| 1158 | uint64_t carry = a->u64[HI_IDX] << (64 - shift); \ |
| 1159 | \ |
| 1160 | r->u64[LO_IDX] = (a->u64[LO_IDX] >> shift) | carry; \ |
| 1161 | r->u64[HI_IDX] = a->u64[HI_IDX] >> shift; \ |
| 1162 | } \ |
| 1163 | } \ |
| 1164 | } |
| 1165 | VSHIFT(l, LEFT) |
| 1166 | VSHIFT(r, RIGHT) |
| 1167 | #undef VSHIFT |
| 1168 | #undef LEFT |
| 1169 | #undef RIGHT |
| 1170 | |
| 1171 | #define VSL(suffix, element) \ |
| 1172 | void helper_vsl##suffix(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 1173 | { \ |
| 1174 | int i; \ |
| 1175 | \ |
| 1176 | for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 1177 | unsigned int mask = ((1 << \ |
| 1178 | (3 + (sizeof(a->element[0]) >> 1))) \ |
| 1179 | - 1); \ |
| 1180 | unsigned int shift = b->element[i] & mask; \ |
| 1181 | \ |
| 1182 | r->element[i] = a->element[i] << shift; \ |
| 1183 | } \ |
| 1184 | } |
| 1185 | VSL(b, u8) |
| 1186 | VSL(h, u16) |
| 1187 | VSL(w, u32) |
| 1188 | #undef VSL |
| 1189 | |
| 1190 | void helper_vsldoi(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t shift) |
| 1191 | { |
| 1192 | int sh = shift & 0xf; |
| 1193 | int i; |
| 1194 | ppc_avr_t result; |
| 1195 | |
| 1196 | #if defined(HOST_WORDS_BIGENDIAN) |
| 1197 | for (i = 0; i < ARRAY_SIZE(r->u8); i++) { |
| 1198 | int index = sh + i; |
| 1199 | if (index > 0xf) { |
| 1200 | result.u8[i] = b->u8[index - 0x10]; |
| 1201 | } else { |
| 1202 | result.u8[i] = a->u8[index]; |
| 1203 | } |
| 1204 | } |
| 1205 | #else |
| 1206 | for (i = 0; i < ARRAY_SIZE(r->u8); i++) { |
| 1207 | int index = (16 - sh) + i; |
| 1208 | if (index > 0xf) { |
| 1209 | result.u8[i] = a->u8[index - 0x10]; |
| 1210 | } else { |
| 1211 | result.u8[i] = b->u8[index]; |
| 1212 | } |
| 1213 | } |
| 1214 | #endif |
| 1215 | *r = result; |
| 1216 | } |
| 1217 | |
| 1218 | void helper_vslo(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
| 1219 | { |
| 1220 | int sh = (b->u8[LO_IDX*0xf] >> 3) & 0xf; |
| 1221 | |
| 1222 | #if defined(HOST_WORDS_BIGENDIAN) |
| 1223 | memmove(&r->u8[0], &a->u8[sh], 16 - sh); |
| 1224 | memset(&r->u8[16-sh], 0, sh); |
| 1225 | #else |
| 1226 | memmove(&r->u8[sh], &a->u8[0], 16 - sh); |
| 1227 | memset(&r->u8[0], 0, sh); |
| 1228 | #endif |
| 1229 | } |
| 1230 | |
| 1231 | /* Experimental testing shows that hardware masks the immediate. */ |
| 1232 | #define _SPLAT_MASKED(element) (splat & (ARRAY_SIZE(r->element) - 1)) |
| 1233 | #if defined(HOST_WORDS_BIGENDIAN) |
| 1234 | #define SPLAT_ELEMENT(element) _SPLAT_MASKED(element) |
| 1235 | #else |
| 1236 | #define SPLAT_ELEMENT(element) \ |
| 1237 | (ARRAY_SIZE(r->element) - 1 - _SPLAT_MASKED(element)) |
| 1238 | #endif |
| 1239 | #define VSPLT(suffix, element) \ |
| 1240 | void helper_vsplt##suffix(ppc_avr_t *r, ppc_avr_t *b, uint32_t splat) \ |
| 1241 | { \ |
| 1242 | uint32_t s = b->element[SPLAT_ELEMENT(element)]; \ |
| 1243 | int i; \ |
| 1244 | \ |
| 1245 | for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 1246 | r->element[i] = s; \ |
| 1247 | } \ |
| 1248 | } |
| 1249 | VSPLT(b, u8) |
| 1250 | VSPLT(h, u16) |
| 1251 | VSPLT(w, u32) |
| 1252 | #undef VSPLT |
| 1253 | #undef SPLAT_ELEMENT |
| 1254 | #undef _SPLAT_MASKED |
| 1255 | |
| 1256 | #define VSPLTI(suffix, element, splat_type) \ |
| 1257 | void helper_vspltis##suffix(ppc_avr_t *r, uint32_t splat) \ |
| 1258 | { \ |
| 1259 | splat_type x = (int8_t)(splat << 3) >> 3; \ |
| 1260 | int i; \ |
| 1261 | \ |
| 1262 | for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 1263 | r->element[i] = x; \ |
| 1264 | } \ |
| 1265 | } |
| 1266 | VSPLTI(b, s8, int8_t) |
| 1267 | VSPLTI(h, s16, int16_t) |
| 1268 | VSPLTI(w, s32, int32_t) |
| 1269 | #undef VSPLTI |
| 1270 | |
| 1271 | #define VSR(suffix, element) \ |
| 1272 | void helper_vsr##suffix(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| 1273 | { \ |
| 1274 | int i; \ |
| 1275 | \ |
| 1276 | for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| 1277 | unsigned int mask = ((1 << \ |
| 1278 | (3 + (sizeof(a->element[0]) >> 1))) \ |
| 1279 | - 1); \ |
| 1280 | unsigned int shift = b->element[i] & mask; \ |
| 1281 | \ |
| 1282 | r->element[i] = a->element[i] >> shift; \ |
| 1283 | } \ |
| 1284 | } |
| 1285 | VSR(ab, s8) |
| 1286 | VSR(ah, s16) |
| 1287 | VSR(aw, s32) |
| 1288 | VSR(b, u8) |
| 1289 | VSR(h, u16) |
| 1290 | VSR(w, u32) |
| 1291 | #undef VSR |
| 1292 | |
| 1293 | void helper_vsro(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
| 1294 | { |
| 1295 | int sh = (b->u8[LO_IDX * 0xf] >> 3) & 0xf; |
| 1296 | |
| 1297 | #if defined(HOST_WORDS_BIGENDIAN) |
| 1298 | memmove(&r->u8[sh], &a->u8[0], 16 - sh); |
| 1299 | memset(&r->u8[0], 0, sh); |
| 1300 | #else |
| 1301 | memmove(&r->u8[0], &a->u8[sh], 16 - sh); |
| 1302 | memset(&r->u8[16 - sh], 0, sh); |
| 1303 | #endif |
| 1304 | } |
| 1305 | |
| 1306 | void helper_vsubcuw(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
| 1307 | { |
| 1308 | int i; |
| 1309 | |
| 1310 | for (i = 0; i < ARRAY_SIZE(r->u32); i++) { |
| 1311 | r->u32[i] = a->u32[i] >= b->u32[i]; |
| 1312 | } |
| 1313 | } |
| 1314 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 1315 | void helper_vsumsws(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 1316 | { |
| 1317 | int64_t t; |
| 1318 | int i, upper; |
| 1319 | ppc_avr_t result; |
| 1320 | int sat = 0; |
| 1321 | |
| 1322 | #if defined(HOST_WORDS_BIGENDIAN) |
| 1323 | upper = ARRAY_SIZE(r->s32)-1; |
| 1324 | #else |
| 1325 | upper = 0; |
| 1326 | #endif |
| 1327 | t = (int64_t)b->s32[upper]; |
| 1328 | for (i = 0; i < ARRAY_SIZE(r->s32); i++) { |
| 1329 | t += a->s32[i]; |
| 1330 | result.s32[i] = 0; |
| 1331 | } |
| 1332 | result.s32[upper] = cvtsdsw(t, &sat); |
| 1333 | *r = result; |
| 1334 | |
| 1335 | if (sat) { |
| 1336 | env->vscr |= (1 << VSCR_SAT); |
| 1337 | } |
| 1338 | } |
| 1339 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 1340 | void helper_vsum2sws(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 1341 | { |
| 1342 | int i, j, upper; |
| 1343 | ppc_avr_t result; |
| 1344 | int sat = 0; |
| 1345 | |
| 1346 | #if defined(HOST_WORDS_BIGENDIAN) |
| 1347 | upper = 1; |
| 1348 | #else |
| 1349 | upper = 0; |
| 1350 | #endif |
| 1351 | for (i = 0; i < ARRAY_SIZE(r->u64); i++) { |
| 1352 | int64_t t = (int64_t)b->s32[upper + i * 2]; |
| 1353 | |
| 1354 | result.u64[i] = 0; |
| 1355 | for (j = 0; j < ARRAY_SIZE(r->u64); j++) { |
| 1356 | t += a->s32[2 * i + j]; |
| 1357 | } |
| 1358 | result.s32[upper + i * 2] = cvtsdsw(t, &sat); |
| 1359 | } |
| 1360 | |
| 1361 | *r = result; |
| 1362 | if (sat) { |
| 1363 | env->vscr |= (1 << VSCR_SAT); |
| 1364 | } |
| 1365 | } |
| 1366 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 1367 | void helper_vsum4sbs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 1368 | { |
| 1369 | int i, j; |
| 1370 | int sat = 0; |
| 1371 | |
| 1372 | for (i = 0; i < ARRAY_SIZE(r->s32); i++) { |
| 1373 | int64_t t = (int64_t)b->s32[i]; |
| 1374 | |
| 1375 | for (j = 0; j < ARRAY_SIZE(r->s32); j++) { |
| 1376 | t += a->s8[4 * i + j]; |
| 1377 | } |
| 1378 | r->s32[i] = cvtsdsw(t, &sat); |
| 1379 | } |
| 1380 | |
| 1381 | if (sat) { |
| 1382 | env->vscr |= (1 << VSCR_SAT); |
| 1383 | } |
| 1384 | } |
| 1385 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 1386 | void helper_vsum4shs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 1387 | { |
| 1388 | int sat = 0; |
| 1389 | int i; |
| 1390 | |
| 1391 | for (i = 0; i < ARRAY_SIZE(r->s32); i++) { |
| 1392 | int64_t t = (int64_t)b->s32[i]; |
| 1393 | |
| 1394 | t += a->s16[2 * i] + a->s16[2 * i + 1]; |
| 1395 | r->s32[i] = cvtsdsw(t, &sat); |
| 1396 | } |
| 1397 | |
| 1398 | if (sat) { |
| 1399 | env->vscr |= (1 << VSCR_SAT); |
| 1400 | } |
| 1401 | } |
| 1402 | |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 1403 | void helper_vsum4ubs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 1404 | { |
| 1405 | int i, j; |
| 1406 | int sat = 0; |
| 1407 | |
| 1408 | for (i = 0; i < ARRAY_SIZE(r->u32); i++) { |
| 1409 | uint64_t t = (uint64_t)b->u32[i]; |
| 1410 | |
| 1411 | for (j = 0; j < ARRAY_SIZE(r->u32); j++) { |
| 1412 | t += a->u8[4 * i + j]; |
| 1413 | } |
| 1414 | r->u32[i] = cvtuduw(t, &sat); |
| 1415 | } |
| 1416 | |
| 1417 | if (sat) { |
| 1418 | env->vscr |= (1 << VSCR_SAT); |
| 1419 | } |
| 1420 | } |
| 1421 | |
| 1422 | #if defined(HOST_WORDS_BIGENDIAN) |
| 1423 | #define UPKHI 1 |
| 1424 | #define UPKLO 0 |
| 1425 | #else |
| 1426 | #define UPKHI 0 |
| 1427 | #define UPKLO 1 |
| 1428 | #endif |
| 1429 | #define VUPKPX(suffix, hi) \ |
| 1430 | void helper_vupk##suffix(ppc_avr_t *r, ppc_avr_t *b) \ |
| 1431 | { \ |
| 1432 | int i; \ |
| 1433 | ppc_avr_t result; \ |
| 1434 | \ |
| 1435 | for (i = 0; i < ARRAY_SIZE(r->u32); i++) { \ |
| 1436 | uint16_t e = b->u16[hi ? i : i+4]; \ |
| 1437 | uint8_t a = (e >> 15) ? 0xff : 0; \ |
| 1438 | uint8_t r = (e >> 10) & 0x1f; \ |
| 1439 | uint8_t g = (e >> 5) & 0x1f; \ |
| 1440 | uint8_t b = e & 0x1f; \ |
| 1441 | \ |
| 1442 | result.u32[i] = (a << 24) | (r << 16) | (g << 8) | b; \ |
| 1443 | } \ |
| 1444 | *r = result; \ |
| 1445 | } |
| 1446 | VUPKPX(lpx, UPKLO) |
| 1447 | VUPKPX(hpx, UPKHI) |
| 1448 | #undef VUPKPX |
| 1449 | |
| 1450 | #define VUPK(suffix, unpacked, packee, hi) \ |
| 1451 | void helper_vupk##suffix(ppc_avr_t *r, ppc_avr_t *b) \ |
| 1452 | { \ |
| 1453 | int i; \ |
| 1454 | ppc_avr_t result; \ |
| 1455 | \ |
| 1456 | if (hi) { \ |
| 1457 | for (i = 0; i < ARRAY_SIZE(r->unpacked); i++) { \ |
| 1458 | result.unpacked[i] = b->packee[i]; \ |
| 1459 | } \ |
| 1460 | } else { \ |
| 1461 | for (i = ARRAY_SIZE(r->unpacked); i < ARRAY_SIZE(r->packee); \ |
| 1462 | i++) { \ |
| 1463 | result.unpacked[i - ARRAY_SIZE(r->unpacked)] = b->packee[i]; \ |
| 1464 | } \ |
| 1465 | } \ |
| 1466 | *r = result; \ |
| 1467 | } |
| 1468 | VUPK(hsb, s16, s8, UPKHI) |
| 1469 | VUPK(hsh, s32, s16, UPKHI) |
| 1470 | VUPK(lsb, s16, s8, UPKLO) |
| 1471 | VUPK(lsh, s32, s16, UPKLO) |
| 1472 | #undef VUPK |
| 1473 | #undef UPKHI |
| 1474 | #undef UPKLO |
| 1475 | |
| 1476 | #undef DO_HANDLE_NAN |
| 1477 | #undef HANDLE_NAN1 |
| 1478 | #undef HANDLE_NAN2 |
| 1479 | #undef HANDLE_NAN3 |
| 1480 | #undef VECTOR_FOR_INORDER_I |
| 1481 | #undef HI_IDX |
| 1482 | #undef LO_IDX |
| 1483 | |
| 1484 | /*****************************************************************************/ |
| 1485 | /* SPE extension helpers */ |
| 1486 | /* Use a table to make this quicker */ |
Blue Swirl | ea6c0da | 2012-05-30 04:23:42 +0000 | [diff] [blame] | 1487 | static const uint8_t hbrev[16] = { |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 1488 | 0x0, 0x8, 0x4, 0xC, 0x2, 0xA, 0x6, 0xE, |
| 1489 | 0x1, 0x9, 0x5, 0xD, 0x3, 0xB, 0x7, 0xF, |
| 1490 | }; |
| 1491 | |
| 1492 | static inline uint8_t byte_reverse(uint8_t val) |
| 1493 | { |
| 1494 | return hbrev[val >> 4] | (hbrev[val & 0xF] << 4); |
| 1495 | } |
| 1496 | |
| 1497 | static inline uint32_t word_reverse(uint32_t val) |
| 1498 | { |
| 1499 | return byte_reverse(val >> 24) | (byte_reverse(val >> 16) << 8) | |
| 1500 | (byte_reverse(val >> 8) << 16) | (byte_reverse(val) << 24); |
| 1501 | } |
| 1502 | |
| 1503 | #define MASKBITS 16 /* Random value - to be fixed (implementation dependent) */ |
| 1504 | target_ulong helper_brinc(target_ulong arg1, target_ulong arg2) |
| 1505 | { |
| 1506 | uint32_t a, b, d, mask; |
| 1507 | |
| 1508 | mask = UINT32_MAX >> (32 - MASKBITS); |
| 1509 | a = arg1 & mask; |
| 1510 | b = arg2 & mask; |
| 1511 | d = word_reverse(1 + word_reverse(a | ~b)); |
| 1512 | return (arg1 & ~mask) | (d & b); |
| 1513 | } |
| 1514 | |
| 1515 | uint32_t helper_cntlsw32(uint32_t val) |
| 1516 | { |
| 1517 | if (val & 0x80000000) { |
| 1518 | return clz32(~val); |
| 1519 | } else { |
| 1520 | return clz32(val); |
| 1521 | } |
| 1522 | } |
| 1523 | |
| 1524 | uint32_t helper_cntlzw32(uint32_t val) |
| 1525 | { |
| 1526 | return clz32(val); |
| 1527 | } |
| 1528 | |
| 1529 | /* 440 specific */ |
Blue Swirl | d15f74f | 2012-05-30 04:23:29 +0000 | [diff] [blame] | 1530 | target_ulong helper_dlmzb(CPUPPCState *env, target_ulong high, |
| 1531 | target_ulong low, uint32_t update_Rc) |
Blue Swirl | 64654de | 2012-05-30 04:23:28 +0000 | [diff] [blame] | 1532 | { |
| 1533 | target_ulong mask; |
| 1534 | int i; |
| 1535 | |
| 1536 | i = 1; |
| 1537 | for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
| 1538 | if ((high & mask) == 0) { |
| 1539 | if (update_Rc) { |
| 1540 | env->crf[0] = 0x4; |
| 1541 | } |
| 1542 | goto done; |
| 1543 | } |
| 1544 | i++; |
| 1545 | } |
| 1546 | for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
| 1547 | if ((low & mask) == 0) { |
| 1548 | if (update_Rc) { |
| 1549 | env->crf[0] = 0x8; |
| 1550 | } |
| 1551 | goto done; |
| 1552 | } |
| 1553 | i++; |
| 1554 | } |
| 1555 | if (update_Rc) { |
| 1556 | env->crf[0] = 0x2; |
| 1557 | } |
| 1558 | done: |
| 1559 | env->xer = (env->xer & ~0x7F) | i; |
| 1560 | if (update_Rc) { |
| 1561 | env->crf[0] |= xer_so; |
| 1562 | } |
| 1563 | return i; |
| 1564 | } |