| 1 | /* cpustate.h -- Prototypes for AArch64 simulator functions. |
| 2 | |
| 3 | Copyright (C) 2015-2016 Free Software Foundation, Inc. |
| 4 | |
| 5 | Contributed by Red Hat. |
| 6 | |
| 7 | This file is part of GDB. |
| 8 | |
| 9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 3 of the License, or |
| 12 | (at your option) any later version. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 21 | |
| 22 | #include <stdio.h> |
| 23 | |
| 24 | #include "sim-main.h" |
| 25 | #include "cpustate.h" |
| 26 | #include "simulator.h" |
| 27 | |
| 28 | /* Some operands are allowed to access the stack pointer (reg 31). |
| 29 | For others a read from r31 always returns 0, and a write to r31 is ignored. */ |
| 30 | #define reg_num(reg) (((reg) == R31 && !r31_is_sp) ? 32 : (reg)) |
| 31 | |
| 32 | void |
| 33 | aarch64_set_reg_u64 (sim_cpu *cpu, GReg reg, int r31_is_sp, uint64_t val) |
| 34 | { |
| 35 | if (reg == R31 && ! r31_is_sp) |
| 36 | { |
| 37 | TRACE_REGISTER (cpu, "GR[31] NOT CHANGED!"); |
| 38 | return; |
| 39 | } |
| 40 | |
| 41 | if (val != cpu->gr[reg].u64) |
| 42 | TRACE_REGISTER (cpu, |
| 43 | "GR[%2d] changes from %16" PRIx64 " to %16" PRIx64, |
| 44 | reg, cpu->gr[reg].u64, val); |
| 45 | |
| 46 | cpu->gr[reg].u64 = val; |
| 47 | } |
| 48 | |
| 49 | void |
| 50 | aarch64_set_reg_s64 (sim_cpu *cpu, GReg reg, int r31_is_sp, int64_t val) |
| 51 | { |
| 52 | if (reg == R31 && ! r31_is_sp) |
| 53 | { |
| 54 | TRACE_REGISTER (cpu, "GR[31] NOT CHANGED!"); |
| 55 | return; |
| 56 | } |
| 57 | |
| 58 | if (val != cpu->gr[reg].s64) |
| 59 | TRACE_REGISTER (cpu, |
| 60 | "GR[%2d] changes from %16" PRIx64 " to %16" PRIx64, |
| 61 | reg, cpu->gr[reg].s64, val); |
| 62 | |
| 63 | cpu->gr[reg].s64 = val; |
| 64 | } |
| 65 | |
| 66 | uint64_t |
| 67 | aarch64_get_reg_u64 (sim_cpu *cpu, GReg reg, int r31_is_sp) |
| 68 | { |
| 69 | return cpu->gr[reg_num(reg)].u64; |
| 70 | } |
| 71 | |
| 72 | int64_t |
| 73 | aarch64_get_reg_s64 (sim_cpu *cpu, GReg reg, int r31_is_sp) |
| 74 | { |
| 75 | return cpu->gr[reg_num(reg)].s64; |
| 76 | } |
| 77 | |
| 78 | uint32_t |
| 79 | aarch64_get_reg_u32 (sim_cpu *cpu, GReg reg, int r31_is_sp) |
| 80 | { |
| 81 | return cpu->gr[reg_num(reg)].u32; |
| 82 | } |
| 83 | |
| 84 | int32_t |
| 85 | aarch64_get_reg_s32 (sim_cpu *cpu, GReg reg, int r31_is_sp) |
| 86 | { |
| 87 | return cpu->gr[reg_num(reg)].s32; |
| 88 | } |
| 89 | |
| 90 | uint32_t |
| 91 | aarch64_get_reg_u16 (sim_cpu *cpu, GReg reg, int r31_is_sp) |
| 92 | { |
| 93 | return cpu->gr[reg_num(reg)].u16; |
| 94 | } |
| 95 | |
| 96 | int32_t |
| 97 | aarch64_get_reg_s16 (sim_cpu *cpu, GReg reg, int r31_is_sp) |
| 98 | { |
| 99 | return cpu->gr[reg_num(reg)].s16; |
| 100 | } |
| 101 | |
| 102 | uint32_t |
| 103 | aarch64_get_reg_u8 (sim_cpu *cpu, GReg reg, int r31_is_sp) |
| 104 | { |
| 105 | return cpu->gr[reg_num(reg)].u8; |
| 106 | } |
| 107 | |
| 108 | int32_t |
| 109 | aarch64_get_reg_s8 (sim_cpu *cpu, GReg reg, int r31_is_sp) |
| 110 | { |
| 111 | return cpu->gr[reg_num(reg)].s8; |
| 112 | } |
| 113 | |
| 114 | uint64_t |
| 115 | aarch64_get_PC (sim_cpu *cpu) |
| 116 | { |
| 117 | return cpu->pc; |
| 118 | } |
| 119 | |
| 120 | uint64_t |
| 121 | aarch64_get_next_PC (sim_cpu *cpu) |
| 122 | { |
| 123 | return cpu->nextpc; |
| 124 | } |
| 125 | |
| 126 | void |
| 127 | aarch64_set_next_PC (sim_cpu *cpu, uint64_t next) |
| 128 | { |
| 129 | if (next != cpu->nextpc + 4) |
| 130 | TRACE_REGISTER (cpu, |
| 131 | "NextPC changes from %16" PRIx64 " to %16" PRIx64, |
| 132 | cpu->nextpc, next); |
| 133 | |
| 134 | cpu->nextpc = next; |
| 135 | } |
| 136 | |
| 137 | void |
| 138 | aarch64_set_next_PC_by_offset (sim_cpu *cpu, int64_t offset) |
| 139 | { |
| 140 | if (cpu->pc + offset != cpu->nextpc + 4) |
| 141 | TRACE_REGISTER (cpu, |
| 142 | "NextPC changes from %16" PRIx64 " to %16" PRIx64, |
| 143 | cpu->nextpc, cpu->pc + offset); |
| 144 | |
| 145 | cpu->nextpc = cpu->pc + offset; |
| 146 | } |
| 147 | |
| 148 | /* Install nextpc as current pc. */ |
| 149 | void |
| 150 | aarch64_update_PC (sim_cpu *cpu) |
| 151 | { |
| 152 | cpu->pc = cpu->nextpc; |
| 153 | /* Rezero the register we hand out when asked for ZR just in case it |
| 154 | was used as the destination for a write by the previous |
| 155 | instruction. */ |
| 156 | cpu->gr[32].u64 = 0UL; |
| 157 | } |
| 158 | |
| 159 | /* This instruction can be used to save the next PC to LR |
| 160 | just before installing a branch PC. */ |
| 161 | void |
| 162 | aarch64_save_LR (sim_cpu *cpu) |
| 163 | { |
| 164 | if (cpu->gr[LR].u64 != cpu->nextpc) |
| 165 | TRACE_REGISTER (cpu, |
| 166 | "LR changes from %16" PRIx64 " to %16" PRIx64, |
| 167 | cpu->gr[LR].u64, cpu->nextpc); |
| 168 | |
| 169 | cpu->gr[LR].u64 = cpu->nextpc; |
| 170 | } |
| 171 | |
| 172 | static const char * |
| 173 | decode_cpsr (FlagMask flags) |
| 174 | { |
| 175 | switch (flags & CPSR_ALL_FLAGS) |
| 176 | { |
| 177 | default: |
| 178 | case 0: return "----"; |
| 179 | case 1: return "---V"; |
| 180 | case 2: return "--C-"; |
| 181 | case 3: return "--CV"; |
| 182 | case 4: return "-Z--"; |
| 183 | case 5: return "-Z-V"; |
| 184 | case 6: return "-ZC-"; |
| 185 | case 7: return "-ZCV"; |
| 186 | case 8: return "N---"; |
| 187 | case 9: return "N--V"; |
| 188 | case 10: return "N-C-"; |
| 189 | case 11: return "N-CV"; |
| 190 | case 12: return "NZ--"; |
| 191 | case 13: return "NZ-V"; |
| 192 | case 14: return "NZC-"; |
| 193 | case 15: return "NZCV"; |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | /* Retrieve the CPSR register as an int. */ |
| 198 | uint32_t |
| 199 | aarch64_get_CPSR (sim_cpu *cpu) |
| 200 | { |
| 201 | return cpu->CPSR; |
| 202 | } |
| 203 | |
| 204 | /* Set the CPSR register as an int. */ |
| 205 | void |
| 206 | aarch64_set_CPSR (sim_cpu *cpu, uint32_t new_flags) |
| 207 | { |
| 208 | if (TRACE_REGISTER_P (cpu)) |
| 209 | { |
| 210 | if (cpu->CPSR != new_flags) |
| 211 | TRACE_REGISTER (cpu, |
| 212 | "CPSR changes from %s to %s", |
| 213 | decode_cpsr (cpu->CPSR), decode_cpsr (new_flags)); |
| 214 | else |
| 215 | TRACE_REGISTER (cpu, |
| 216 | "CPSR stays at %s", decode_cpsr (cpu->CPSR)); |
| 217 | } |
| 218 | |
| 219 | cpu->CPSR = new_flags & CPSR_ALL_FLAGS; |
| 220 | } |
| 221 | |
| 222 | /* Read a specific subset of the CPSR as a bit pattern. */ |
| 223 | uint32_t |
| 224 | aarch64_get_CPSR_bits (sim_cpu *cpu, FlagMask mask) |
| 225 | { |
| 226 | return cpu->CPSR & mask; |
| 227 | } |
| 228 | |
| 229 | /* Assign a specific subset of the CPSR as a bit pattern. */ |
| 230 | void |
| 231 | aarch64_set_CPSR_bits (sim_cpu *cpu, uint32_t mask, uint32_t value) |
| 232 | { |
| 233 | uint32_t old_flags = cpu->CPSR; |
| 234 | |
| 235 | mask &= CPSR_ALL_FLAGS; |
| 236 | cpu->CPSR &= ~ mask; |
| 237 | cpu->CPSR |= (value & mask); |
| 238 | |
| 239 | if (old_flags != cpu->CPSR) |
| 240 | TRACE_REGISTER (cpu, |
| 241 | "CPSR changes from %s to %s", |
| 242 | decode_cpsr (old_flags), decode_cpsr (cpu->CPSR)); |
| 243 | } |
| 244 | |
| 245 | /* Test the value of a single CPSR returned as non-zero or zero. */ |
| 246 | uint32_t |
| 247 | aarch64_test_CPSR_bit (sim_cpu *cpu, FlagMask bit) |
| 248 | { |
| 249 | return cpu->CPSR & bit; |
| 250 | } |
| 251 | |
| 252 | /* Set a single flag in the CPSR. */ |
| 253 | void |
| 254 | aarch64_set_CPSR_bit (sim_cpu *cpu, FlagMask bit) |
| 255 | { |
| 256 | uint32_t old_flags = cpu->CPSR; |
| 257 | |
| 258 | cpu->CPSR |= (bit & CPSR_ALL_FLAGS); |
| 259 | |
| 260 | if (old_flags != cpu->CPSR) |
| 261 | TRACE_REGISTER (cpu, |
| 262 | "CPSR changes from %s to %s", |
| 263 | decode_cpsr (old_flags), decode_cpsr (cpu->CPSR)); |
| 264 | } |
| 265 | |
| 266 | /* Clear a single flag in the CPSR. */ |
| 267 | void |
| 268 | aarch64_clear_CPSR_bit (sim_cpu *cpu, FlagMask bit) |
| 269 | { |
| 270 | uint32_t old_flags = cpu->CPSR; |
| 271 | |
| 272 | cpu->CPSR &= ~(bit & CPSR_ALL_FLAGS); |
| 273 | |
| 274 | if (old_flags != cpu->CPSR) |
| 275 | TRACE_REGISTER (cpu, |
| 276 | "CPSR changes from %s to %s", |
| 277 | decode_cpsr (old_flags), decode_cpsr (cpu->CPSR)); |
| 278 | } |
| 279 | |
| 280 | float |
| 281 | aarch64_get_FP_half (sim_cpu *cpu, VReg reg) |
| 282 | { |
| 283 | union |
| 284 | { |
| 285 | uint16_t h[2]; |
| 286 | float f; |
| 287 | } u; |
| 288 | |
| 289 | u.h[0] = cpu->fr[reg].h[0]; |
| 290 | u.h[1] = 0; |
| 291 | return u.f; |
| 292 | } |
| 293 | |
| 294 | |
| 295 | float |
| 296 | aarch64_get_FP_float (sim_cpu *cpu, VReg reg) |
| 297 | { |
| 298 | return cpu->fr[reg].s; |
| 299 | } |
| 300 | |
| 301 | double |
| 302 | aarch64_get_FP_double (sim_cpu *cpu, VReg reg) |
| 303 | { |
| 304 | return cpu->fr[reg].d; |
| 305 | } |
| 306 | |
| 307 | void |
| 308 | aarch64_get_FP_long_double (sim_cpu *cpu, VReg reg, FRegister *a) |
| 309 | { |
| 310 | a->v[0] = cpu->fr[reg].v[0]; |
| 311 | a->v[1] = cpu->fr[reg].v[1]; |
| 312 | } |
| 313 | |
| 314 | void |
| 315 | aarch64_set_FP_half (sim_cpu *cpu, VReg reg, float val) |
| 316 | { |
| 317 | union |
| 318 | { |
| 319 | uint16_t h[2]; |
| 320 | float f; |
| 321 | } u; |
| 322 | |
| 323 | u.f = val; |
| 324 | cpu->fr[reg].h[0] = u.h[0]; |
| 325 | cpu->fr[reg].h[1] = 0; |
| 326 | } |
| 327 | |
| 328 | |
| 329 | void |
| 330 | aarch64_set_FP_float (sim_cpu *cpu, VReg reg, float val) |
| 331 | { |
| 332 | if (val != cpu->fr[reg].s) |
| 333 | { |
| 334 | FRegister v; |
| 335 | |
| 336 | v.s = val; |
| 337 | TRACE_REGISTER (cpu, |
| 338 | "FR[%d].s changes from %f to %f [hex: %0lx]", |
| 339 | reg, cpu->fr[reg].s, val, v.v[0]); |
| 340 | } |
| 341 | |
| 342 | cpu->fr[reg].s = val; |
| 343 | } |
| 344 | |
| 345 | void |
| 346 | aarch64_set_FP_double (sim_cpu *cpu, VReg reg, double val) |
| 347 | { |
| 348 | if (val != cpu->fr[reg].d) |
| 349 | { |
| 350 | FRegister v; |
| 351 | |
| 352 | v.d = val; |
| 353 | TRACE_REGISTER (cpu, |
| 354 | "FR[%d].d changes from %f to %f [hex: %0lx]", |
| 355 | reg, cpu->fr[reg].d, val, v.v[0]); |
| 356 | } |
| 357 | cpu->fr[reg].d = val; |
| 358 | } |
| 359 | |
| 360 | void |
| 361 | aarch64_set_FP_long_double (sim_cpu *cpu, VReg reg, FRegister a) |
| 362 | { |
| 363 | if (cpu->fr[reg].v[0] != a.v[0] |
| 364 | || cpu->fr[reg].v[1] != a.v[1]) |
| 365 | TRACE_REGISTER (cpu, |
| 366 | "FR[%d].q changes from [%0lx %0lx] to [%0lx %0lx] ", |
| 367 | reg, |
| 368 | cpu->fr[reg].v[0], cpu->fr[reg].v[1], |
| 369 | a.v[0], a.v[1]); |
| 370 | |
| 371 | cpu->fr[reg].v[0] = a.v[0]; |
| 372 | cpu->fr[reg].v[1] = a.v[1]; |
| 373 | } |
| 374 | |
| 375 | #define GET_VEC_ELEMENT(REG, ELEMENT, FIELD) \ |
| 376 | do \ |
| 377 | { \ |
| 378 | if (ELEMENT >= ARRAY_SIZE (cpu->fr[0].FIELD)) \ |
| 379 | { \ |
| 380 | TRACE_REGISTER (cpu, \ |
| 381 | "Internal SIM error: invalid element number: %d ",\ |
| 382 | ELEMENT); \ |
| 383 | sim_engine_halt (CPU_STATE (cpu), cpu, NULL, aarch64_get_PC (cpu), \ |
| 384 | sim_stopped, SIM_SIGBUS); \ |
| 385 | } \ |
| 386 | return cpu->fr[REG].FIELD [ELEMENT]; \ |
| 387 | } \ |
| 388 | while (0) |
| 389 | |
| 390 | uint64_t |
| 391 | aarch64_get_vec_u64 (sim_cpu *cpu, VReg reg, unsigned element) |
| 392 | { |
| 393 | GET_VEC_ELEMENT (reg, element, v); |
| 394 | } |
| 395 | |
| 396 | uint32_t |
| 397 | aarch64_get_vec_u32 (sim_cpu *cpu, VReg reg, unsigned element) |
| 398 | { |
| 399 | GET_VEC_ELEMENT (reg, element, w); |
| 400 | } |
| 401 | |
| 402 | uint16_t |
| 403 | aarch64_get_vec_u16 (sim_cpu *cpu, VReg reg, unsigned element) |
| 404 | { |
| 405 | GET_VEC_ELEMENT (reg, element, h); |
| 406 | } |
| 407 | |
| 408 | uint8_t |
| 409 | aarch64_get_vec_u8 (sim_cpu *cpu, VReg reg, unsigned element) |
| 410 | { |
| 411 | GET_VEC_ELEMENT (reg, element, b); |
| 412 | } |
| 413 | |
| 414 | int64_t |
| 415 | aarch64_get_vec_s64 (sim_cpu *cpu, VReg reg, unsigned element) |
| 416 | { |
| 417 | GET_VEC_ELEMENT (reg, element, V); |
| 418 | } |
| 419 | |
| 420 | int32_t |
| 421 | aarch64_get_vec_s32 (sim_cpu *cpu, VReg reg, unsigned element) |
| 422 | { |
| 423 | GET_VEC_ELEMENT (reg, element, W); |
| 424 | } |
| 425 | |
| 426 | int16_t |
| 427 | aarch64_get_vec_s16 (sim_cpu *cpu, VReg reg, unsigned element) |
| 428 | { |
| 429 | GET_VEC_ELEMENT (reg, element, H); |
| 430 | } |
| 431 | |
| 432 | int8_t |
| 433 | aarch64_get_vec_s8 (sim_cpu *cpu, VReg reg, unsigned element) |
| 434 | { |
| 435 | GET_VEC_ELEMENT (reg, element, B); |
| 436 | } |
| 437 | |
| 438 | float |
| 439 | aarch64_get_vec_float (sim_cpu *cpu, VReg reg, unsigned element) |
| 440 | { |
| 441 | GET_VEC_ELEMENT (reg, element, S); |
| 442 | } |
| 443 | |
| 444 | double |
| 445 | aarch64_get_vec_double (sim_cpu *cpu, VReg reg, unsigned element) |
| 446 | { |
| 447 | GET_VEC_ELEMENT (reg, element, D); |
| 448 | } |
| 449 | |
| 450 | |
| 451 | #define SET_VEC_ELEMENT(REG, ELEMENT, VAL, FIELD, PRINTER) \ |
| 452 | do \ |
| 453 | { \ |
| 454 | if (ELEMENT >= ARRAY_SIZE (cpu->fr[0].FIELD)) \ |
| 455 | { \ |
| 456 | TRACE_REGISTER (cpu, \ |
| 457 | "Internal SIM error: invalid element number: %d ",\ |
| 458 | ELEMENT); \ |
| 459 | sim_engine_halt (CPU_STATE (cpu), cpu, NULL, aarch64_get_PC (cpu), \ |
| 460 | sim_stopped, SIM_SIGBUS); \ |
| 461 | } \ |
| 462 | if (VAL != cpu->fr[REG].FIELD [ELEMENT]) \ |
| 463 | TRACE_REGISTER (cpu, \ |
| 464 | "VR[%2d]." #FIELD " [%d] changes from " PRINTER \ |
| 465 | " to " PRINTER , REG, \ |
| 466 | ELEMENT, cpu->fr[REG].FIELD [ELEMENT], VAL); \ |
| 467 | \ |
| 468 | cpu->fr[REG].FIELD [ELEMENT] = VAL; \ |
| 469 | } \ |
| 470 | while (0) |
| 471 | |
| 472 | void |
| 473 | aarch64_set_vec_u64 (sim_cpu *cpu, VReg reg, unsigned element, uint64_t val) |
| 474 | { |
| 475 | SET_VEC_ELEMENT (reg, element, val, v, "%16lx"); |
| 476 | } |
| 477 | |
| 478 | void |
| 479 | aarch64_set_vec_u32 (sim_cpu *cpu, VReg reg, unsigned element, uint32_t val) |
| 480 | { |
| 481 | SET_VEC_ELEMENT (reg, element, val, w, "%8x"); |
| 482 | } |
| 483 | |
| 484 | void |
| 485 | aarch64_set_vec_u16 (sim_cpu *cpu, VReg reg, unsigned element, uint16_t val) |
| 486 | { |
| 487 | SET_VEC_ELEMENT (reg, element, val, h, "%4x"); |
| 488 | } |
| 489 | |
| 490 | void |
| 491 | aarch64_set_vec_u8 (sim_cpu *cpu, VReg reg, unsigned element, uint8_t val) |
| 492 | { |
| 493 | SET_VEC_ELEMENT (reg, element, val, b, "%x"); |
| 494 | } |
| 495 | |
| 496 | void |
| 497 | aarch64_set_vec_s64 (sim_cpu *cpu, VReg reg, unsigned element, int64_t val) |
| 498 | { |
| 499 | SET_VEC_ELEMENT (reg, element, val, V, "%16lx"); |
| 500 | } |
| 501 | |
| 502 | void |
| 503 | aarch64_set_vec_s32 (sim_cpu *cpu, VReg reg, unsigned element, int32_t val) |
| 504 | { |
| 505 | SET_VEC_ELEMENT (reg, element, val, W, "%8x"); |
| 506 | } |
| 507 | |
| 508 | void |
| 509 | aarch64_set_vec_s16 (sim_cpu *cpu, VReg reg, unsigned element, int16_t val) |
| 510 | { |
| 511 | SET_VEC_ELEMENT (reg, element, val, H, "%4x"); |
| 512 | } |
| 513 | |
| 514 | void |
| 515 | aarch64_set_vec_s8 (sim_cpu *cpu, VReg reg, unsigned element, int8_t val) |
| 516 | { |
| 517 | SET_VEC_ELEMENT (reg, element, val, B, "%x"); |
| 518 | } |
| 519 | |
| 520 | void |
| 521 | aarch64_set_vec_float (sim_cpu *cpu, VReg reg, unsigned element, float val) |
| 522 | { |
| 523 | SET_VEC_ELEMENT (reg, element, val, S, "%f"); |
| 524 | } |
| 525 | |
| 526 | void |
| 527 | aarch64_set_vec_double (sim_cpu *cpu, VReg reg, unsigned element, double val) |
| 528 | { |
| 529 | SET_VEC_ELEMENT (reg, element, val, D, "%f"); |
| 530 | } |
| 531 | |
| 532 | void |
| 533 | aarch64_set_FPSR (sim_cpu *cpu, uint32_t value) |
| 534 | { |
| 535 | if (cpu->FPSR != value) |
| 536 | TRACE_REGISTER (cpu, |
| 537 | "FPSR changes from %x to %x", cpu->FPSR, value); |
| 538 | |
| 539 | cpu->FPSR = value & FPSR_ALL_FPSRS; |
| 540 | } |
| 541 | |
| 542 | uint32_t |
| 543 | aarch64_get_FPSR (sim_cpu *cpu) |
| 544 | { |
| 545 | return cpu->FPSR; |
| 546 | } |
| 547 | |
| 548 | void |
| 549 | aarch64_set_FPSR_bits (sim_cpu *cpu, uint32_t mask, uint32_t value) |
| 550 | { |
| 551 | uint32_t old_FPSR = cpu->FPSR; |
| 552 | |
| 553 | mask &= FPSR_ALL_FPSRS; |
| 554 | cpu->FPSR &= ~mask; |
| 555 | cpu->FPSR |= (value & mask); |
| 556 | |
| 557 | if (cpu->FPSR != old_FPSR) |
| 558 | TRACE_REGISTER (cpu, |
| 559 | "FPSR changes from %x to %x", old_FPSR, cpu->FPSR); |
| 560 | } |
| 561 | |
| 562 | uint32_t |
| 563 | aarch64_get_FPSR_bits (sim_cpu *cpu, uint32_t mask) |
| 564 | { |
| 565 | mask &= FPSR_ALL_FPSRS; |
| 566 | return cpu->FPSR & mask; |
| 567 | } |
| 568 | |
| 569 | int |
| 570 | aarch64_test_FPSR_bit (sim_cpu *cpu, FPSRMask flag) |
| 571 | { |
| 572 | return cpu->FPSR & flag; |
| 573 | } |
| 574 | |
| 575 | uint64_t |
| 576 | aarch64_get_thread_id (sim_cpu *cpu) |
| 577 | { |
| 578 | return cpu->tpidr; |
| 579 | } |
| 580 | |
| 581 | uint32_t |
| 582 | aarch64_get_FPCR (sim_cpu *cpu) |
| 583 | { |
| 584 | return cpu->FPCR; |
| 585 | } |
| 586 | |
| 587 | void |
| 588 | aarch64_set_FPCR (sim_cpu *cpu, uint32_t val) |
| 589 | { |
| 590 | if (cpu->FPCR != val) |
| 591 | TRACE_REGISTER (cpu, |
| 592 | "FPCR changes from %x to %x", cpu->FPCR, val); |
| 593 | cpu->FPCR = val; |
| 594 | } |