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2e8cf49e NC |
1 | /* cpustate.h -- Prototypes for AArch64 simulator functions. |
2 | ||
618f726f | 3 | Copyright (C) 2015-2016 Free Software Foundation, Inc. |
2e8cf49e NC |
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 | { | |
e101a78b | 37 | TRACE_REGISTER (cpu, "GR[31] NOT CHANGED!"); |
2e8cf49e NC |
38 | return; |
39 | } | |
40 | ||
41 | if (val != cpu->gr[reg].u64) | |
42 | TRACE_REGISTER (cpu, | |
e101a78b | 43 | "GR[%2d] changes from %16" PRIx64 " to %16" PRIx64, |
2e8cf49e NC |
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 | { | |
e101a78b | 54 | TRACE_REGISTER (cpu, "GR[31] NOT CHANGED!"); |
2e8cf49e NC |
55 | return; |
56 | } | |
57 | ||
58 | if (val != cpu->gr[reg].s64) | |
59 | TRACE_REGISTER (cpu, | |
e101a78b | 60 | "GR[%2d] changes from %16" PRIx64 " to %16" PRIx64, |
2e8cf49e NC |
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, | |
e101a78b | 131 | "NextPC changes from %16" PRIx64 " to %16" PRIx64, |
2e8cf49e NC |
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, | |
e101a78b | 142 | "NextPC changes from %16" PRIx64 " to %16" PRIx64, |
2e8cf49e NC |
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, | |
e101a78b | 166 | "LR changes from %16" PRIx64 " to %16" PRIx64, |
2e8cf49e NC |
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, | |
e101a78b | 212 | "CPSR changes from %s to %s", |
2e8cf49e NC |
213 | decode_cpsr (cpu->CPSR), decode_cpsr (new_flags)); |
214 | else | |
215 | TRACE_REGISTER (cpu, | |
e101a78b | 216 | "CPSR stays at %s", decode_cpsr (cpu->CPSR)); |
2e8cf49e NC |
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, | |
e101a78b | 241 | "CPSR changes from %s to %s", |
2e8cf49e NC |
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, | |
e101a78b | 262 | "CPSR changes from %s to %s", |
2e8cf49e NC |
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, | |
e101a78b | 276 | "CPSR changes from %s to %s", |
2e8cf49e NC |
277 | decode_cpsr (old_flags), decode_cpsr (cpu->CPSR)); |
278 | } | |
279 | ||
280 | float | |
281 | aarch64_get_FP_float (sim_cpu *cpu, VReg reg) | |
282 | { | |
283 | return cpu->fr[reg].s; | |
284 | } | |
285 | ||
286 | double | |
287 | aarch64_get_FP_double (sim_cpu *cpu, VReg reg) | |
288 | { | |
289 | return cpu->fr[reg].d; | |
290 | } | |
291 | ||
292 | void | |
293 | aarch64_get_FP_long_double (sim_cpu *cpu, VReg reg, FRegister *a) | |
294 | { | |
295 | a->v[0] = cpu->fr[reg].v[0]; | |
296 | a->v[1] = cpu->fr[reg].v[1]; | |
297 | } | |
298 | ||
299 | void | |
300 | aarch64_set_FP_float (sim_cpu *cpu, VReg reg, float val) | |
301 | { | |
302 | if (val != cpu->fr[reg].s) | |
e101a78b NC |
303 | { |
304 | FRegister v; | |
305 | ||
306 | v.s = val; | |
307 | TRACE_REGISTER (cpu, | |
308 | "FR[%d].s changes from %f to %f [hex: %0lx]", | |
309 | reg, cpu->fr[reg].s, val, v.v[0]); | |
310 | } | |
2e8cf49e NC |
311 | |
312 | cpu->fr[reg].s = val; | |
313 | } | |
314 | ||
315 | void | |
316 | aarch64_set_FP_double (sim_cpu *cpu, VReg reg, double val) | |
317 | { | |
318 | if (val != cpu->fr[reg].d) | |
e101a78b NC |
319 | { |
320 | FRegister v; | |
2e8cf49e | 321 | |
e101a78b NC |
322 | v.d = val; |
323 | TRACE_REGISTER (cpu, | |
324 | "FR[%d].d changes from %f to %f [hex: %0lx]", | |
325 | reg, cpu->fr[reg].d, val, v.v[0]); | |
326 | } | |
2e8cf49e NC |
327 | cpu->fr[reg].d = val; |
328 | } | |
329 | ||
330 | void | |
331 | aarch64_set_FP_long_double (sim_cpu *cpu, VReg reg, FRegister a) | |
332 | { | |
333 | if (cpu->fr[reg].v[0] != a.v[0] | |
334 | || cpu->fr[reg].v[1] != a.v[1]) | |
335 | TRACE_REGISTER (cpu, | |
e101a78b | 336 | "FR[%d].q changes from [%0lx %0lx] to [%0lx %0lx] ", |
2e8cf49e NC |
337 | reg, |
338 | cpu->fr[reg].v[0], cpu->fr[reg].v[1], | |
339 | a.v[0], a.v[1]); | |
340 | ||
341 | cpu->fr[reg].v[0] = a.v[0]; | |
342 | cpu->fr[reg].v[1] = a.v[1]; | |
343 | } | |
344 | ||
e101a78b NC |
345 | #define GET_VEC_ELEMENT(REG, ELEMENT, FIELD) \ |
346 | do \ | |
347 | { \ | |
348 | if (element > ARRAY_SIZE (cpu->fr[0].FIELD)) \ | |
349 | { \ | |
350 | TRACE_REGISTER (cpu, \ | |
351 | "Internal SIM error: invalid element number: %d ",\ | |
352 | ELEMENT); \ | |
353 | sim_engine_halt (CPU_STATE (cpu), cpu, NULL, aarch64_get_PC (cpu), \ | |
354 | sim_stopped, SIM_SIGBUS); \ | |
355 | } \ | |
356 | return cpu->fr[REG].FIELD [ELEMENT]; \ | |
357 | } \ | |
358 | while (0) | |
359 | ||
2e8cf49e NC |
360 | uint64_t |
361 | aarch64_get_vec_u64 (sim_cpu *cpu, VReg reg, unsigned element) | |
362 | { | |
e101a78b | 363 | GET_VEC_ELEMENT (reg, element, v); |
2e8cf49e NC |
364 | } |
365 | ||
366 | uint32_t | |
e101a78b | 367 | aarch64_get_vec_u32 (sim_cpu *cpu, VReg reg, unsigned element) |
2e8cf49e | 368 | { |
e101a78b | 369 | GET_VEC_ELEMENT (reg, element, w); |
2e8cf49e NC |
370 | } |
371 | ||
372 | uint16_t | |
e101a78b | 373 | aarch64_get_vec_u16 (sim_cpu *cpu, VReg reg, unsigned element) |
2e8cf49e | 374 | { |
e101a78b | 375 | GET_VEC_ELEMENT (reg, element, h); |
2e8cf49e NC |
376 | } |
377 | ||
378 | uint8_t | |
e101a78b | 379 | aarch64_get_vec_u8 (sim_cpu *cpu, VReg reg, unsigned element) |
2e8cf49e | 380 | { |
e101a78b | 381 | GET_VEC_ELEMENT (reg, element, b); |
2e8cf49e NC |
382 | } |
383 | ||
e101a78b NC |
384 | int64_t |
385 | aarch64_get_vec_s64 (sim_cpu *cpu, VReg reg, unsigned element) | |
2e8cf49e | 386 | { |
e101a78b | 387 | GET_VEC_ELEMENT (reg, element, V); |
2e8cf49e NC |
388 | } |
389 | ||
e101a78b NC |
390 | int32_t |
391 | aarch64_get_vec_s32 (sim_cpu *cpu, VReg reg, unsigned element) | |
2e8cf49e | 392 | { |
e101a78b | 393 | GET_VEC_ELEMENT (reg, element, W); |
2e8cf49e NC |
394 | } |
395 | ||
e101a78b NC |
396 | int16_t |
397 | aarch64_get_vec_s16 (sim_cpu *cpu, VReg reg, unsigned element) | |
2e8cf49e | 398 | { |
e101a78b | 399 | GET_VEC_ELEMENT (reg, element, H); |
2e8cf49e NC |
400 | } |
401 | ||
e101a78b NC |
402 | int8_t |
403 | aarch64_get_vec_s8 (sim_cpu *cpu, VReg reg, unsigned element) | |
2e8cf49e | 404 | { |
e101a78b | 405 | GET_VEC_ELEMENT (reg, element, B); |
2e8cf49e NC |
406 | } |
407 | ||
e101a78b NC |
408 | float |
409 | aarch64_get_vec_float (sim_cpu *cpu, VReg reg, unsigned element) | |
2e8cf49e | 410 | { |
e101a78b | 411 | GET_VEC_ELEMENT (reg, element, S); |
2e8cf49e NC |
412 | } |
413 | ||
e101a78b NC |
414 | double |
415 | aarch64_get_vec_double (sim_cpu *cpu, VReg reg, unsigned element) | |
416 | { | |
417 | GET_VEC_ELEMENT (reg, element, D); | |
418 | } | |
419 | ||
420 | ||
421 | #define SET_VEC_ELEMENT(REG, ELEMENT, VAL, FIELD, PRINTER) \ | |
422 | do \ | |
423 | { \ | |
424 | if (ELEMENT > ARRAY_SIZE (cpu->fr[0].FIELD)) \ | |
425 | { \ | |
426 | TRACE_REGISTER (cpu, \ | |
427 | "Internal SIM error: invalid element number: %d ",\ | |
428 | ELEMENT); \ | |
429 | sim_engine_halt (CPU_STATE (cpu), cpu, NULL, aarch64_get_PC (cpu), \ | |
430 | sim_stopped, SIM_SIGBUS); \ | |
431 | } \ | |
432 | if (VAL != cpu->fr[REG].FIELD [ELEMENT]) \ | |
433 | TRACE_REGISTER (cpu, \ | |
434 | "VR[%2d]." #FIELD " [%d] changes from " PRINTER \ | |
435 | " to " PRINTER , REG, \ | |
436 | ELEMENT, cpu->fr[REG].FIELD [ELEMENT], VAL); \ | |
437 | \ | |
438 | cpu->fr[REG].FIELD [ELEMENT] = VAL; \ | |
439 | } \ | |
440 | while (0) | |
2e8cf49e NC |
441 | |
442 | void | |
e101a78b | 443 | aarch64_set_vec_u64 (sim_cpu * cpu, VReg reg, unsigned element, uint64_t val) |
2e8cf49e | 444 | { |
e101a78b | 445 | SET_VEC_ELEMENT (reg, element, val, v, "%16lx"); |
2e8cf49e NC |
446 | } |
447 | ||
e101a78b NC |
448 | void |
449 | aarch64_set_vec_u32 (sim_cpu * cpu, VReg reg, unsigned element, uint32_t val) | |
2e8cf49e | 450 | { |
e101a78b | 451 | SET_VEC_ELEMENT (reg, element, val, w, "%8x"); |
2e8cf49e NC |
452 | } |
453 | ||
e101a78b NC |
454 | void |
455 | aarch64_set_vec_u16 (sim_cpu * cpu, VReg reg, unsigned element, uint16_t val) | |
2e8cf49e | 456 | { |
e101a78b | 457 | SET_VEC_ELEMENT (reg, element, val, h, "%4x"); |
2e8cf49e NC |
458 | } |
459 | ||
e101a78b NC |
460 | void |
461 | aarch64_set_vec_u8 (sim_cpu * cpu, VReg reg, unsigned element, uint8_t val) | |
2e8cf49e | 462 | { |
e101a78b | 463 | SET_VEC_ELEMENT (reg, element, val, b, "%x"); |
2e8cf49e NC |
464 | } |
465 | ||
466 | void | |
e101a78b | 467 | aarch64_set_vec_s64 (sim_cpu *cpu, VReg reg, unsigned element, int64_t val) |
2e8cf49e | 468 | { |
e101a78b | 469 | SET_VEC_ELEMENT (reg, element, val, V, "%16lx"); |
2e8cf49e NC |
470 | } |
471 | ||
472 | void | |
e101a78b | 473 | aarch64_set_vec_s32 (sim_cpu *cpu, VReg reg, unsigned element, int32_t val) |
2e8cf49e | 474 | { |
e101a78b | 475 | SET_VEC_ELEMENT (reg, element, val, W, "%8x"); |
2e8cf49e NC |
476 | } |
477 | ||
e101a78b NC |
478 | void |
479 | aarch64_set_vec_s16 (sim_cpu *cpu, VReg reg, unsigned element, int16_t val) | |
2e8cf49e | 480 | { |
e101a78b | 481 | SET_VEC_ELEMENT (reg, element, val, H, "%4x"); |
2e8cf49e NC |
482 | } |
483 | ||
e101a78b NC |
484 | void |
485 | aarch64_set_vec_s8 (sim_cpu *cpu, VReg reg, unsigned element, int8_t val) | |
2e8cf49e | 486 | { |
e101a78b | 487 | SET_VEC_ELEMENT (reg, element, val, B, "%x"); |
2e8cf49e NC |
488 | } |
489 | ||
e101a78b NC |
490 | void |
491 | aarch64_set_vec_float (sim_cpu *cpu, VReg reg, unsigned element, float val) | |
2e8cf49e | 492 | { |
e101a78b | 493 | SET_VEC_ELEMENT (reg, element, val, S, "%f"); |
2e8cf49e NC |
494 | } |
495 | ||
e101a78b NC |
496 | void |
497 | aarch64_set_vec_double (sim_cpu *cpu, VReg reg, unsigned element, double val) | |
2e8cf49e | 498 | { |
e101a78b | 499 | SET_VEC_ELEMENT (reg, element, val, D, "%f"); |
2e8cf49e NC |
500 | } |
501 | ||
502 | void | |
e101a78b | 503 | aarch64_set_FPSR (sim_cpu *cpu, uint32_t value) |
2e8cf49e | 504 | { |
e101a78b | 505 | if (cpu->FPSR != value) |
2e8cf49e | 506 | TRACE_REGISTER (cpu, |
e101a78b | 507 | "FPSR changes from %x to %x", cpu->FPSR, value); |
2e8cf49e | 508 | |
e101a78b | 509 | cpu->FPSR = value & FPSR_ALL_FPSRS; |
2e8cf49e NC |
510 | } |
511 | ||
e101a78b NC |
512 | uint32_t |
513 | aarch64_get_FPSR (sim_cpu *cpu) | |
2e8cf49e | 514 | { |
e101a78b | 515 | return cpu->FPSR; |
2e8cf49e NC |
516 | } |
517 | ||
518 | void | |
e101a78b | 519 | aarch64_set_FPSR_bits (sim_cpu *cpu, uint32_t mask, uint32_t value) |
2e8cf49e | 520 | { |
e101a78b NC |
521 | uint32_t old_FPSR = cpu->FPSR; |
522 | ||
523 | mask &= FPSR_ALL_FPSRS; | |
524 | cpu->FPSR &= ~mask; | |
525 | cpu->FPSR |= (value & mask); | |
2e8cf49e | 526 | |
e101a78b NC |
527 | if (cpu->FPSR != old_FPSR) |
528 | TRACE_REGISTER (cpu, | |
529 | "FPSR changes from %x to %x", old_FPSR, cpu->FPSR); | |
2e8cf49e NC |
530 | } |
531 | ||
e101a78b NC |
532 | uint32_t |
533 | aarch64_get_FPSR_bits (sim_cpu *cpu, uint32_t mask) | |
2e8cf49e | 534 | { |
e101a78b NC |
535 | mask &= FPSR_ALL_FPSRS; |
536 | return cpu->FPSR & mask; | |
537 | } | |
2e8cf49e | 538 | |
e101a78b NC |
539 | int |
540 | aarch64_test_FPSR_bit (sim_cpu *cpu, FPSRMask flag) | |
541 | { | |
542 | return cpu->FPSR & flag; | |
2e8cf49e | 543 | } |