1 /* collection of junk waiting time to sort out 2 Copyright (C) 1998-2024 Free Software Foundation, Inc. 3 Contributed by Red Hat 4 5 This file is part of the GNU Simulators. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 19 20 #ifndef FRV_SIM_H 21 #define FRV_SIM_H 22 23 #include "sim-options.h" 24 25 /* True if SPR is the number of accumulator or accumulator guard register. */ 26 #define SPR_IS_ACC(SPR) ((SPR) >= 1408 && (SPR) <= 1535) 27 28 /* Initialization of the frv cpu. */ 29 void frv_initialize (SIM_CPU *, SIM_DESC); 30 void frv_term (SIM_DESC); 31 void frv_power_on_reset (SIM_CPU *); 32 void frv_hardware_reset (SIM_CPU *); 33 void frv_software_reset (SIM_CPU *); 34 35 /* The reset register. See FRV LSI section 10.3.1 */ 36 #define RSTR_ADDRESS 0xfeff0500 37 #define RSTR_INITIAL_VALUE 0x00000400 38 #define RSTR_HARDWARE_RESET 0x00000200 39 #define RSTR_SOFTWARE_RESET 0x00000100 40 41 #define GET_RSTR_HR(rstr) (((rstr) >> 1) & 1) 42 #define GET_RSTR_SR(rstr) (((rstr) ) & 1) 43 44 #define SET_RSTR_H(rstr) ((rstr) |= (1 << 9)) 45 #define SET_RSTR_S(rstr) ((rstr) |= (1 << 8)) 46 47 #define CLEAR_RSTR_P(rstr) ((rstr) &= ~(1 << 10)) 48 #define CLEAR_RSTR_H(rstr) ((rstr) &= ~(1 << 9)) 49 #define CLEAR_RSTR_S(rstr) ((rstr) &= ~(1 << 8)) 50 #define CLEAR_RSTR_HR(rstr) ((rstr) &= ~(1 << 1)) 51 #define CLEAR_RSTR_SR(rstr) ((rstr) &= ~1) 52 53 /* Cutomized hardware get/set functions. */ 54 extern USI frvbf_h_spr_get_handler (SIM_CPU *, UINT); 55 extern void frvbf_h_spr_set_handler (SIM_CPU *, UINT, USI); 56 extern USI frvbf_h_gr_get_handler (SIM_CPU *, UINT); 57 extern void frvbf_h_gr_set_handler (SIM_CPU *, UINT, USI); 58 extern UHI frvbf_h_gr_hi_get_handler (SIM_CPU *, UINT); 59 extern void frvbf_h_gr_hi_set_handler (SIM_CPU *, UINT, UHI); 60 extern UHI frvbf_h_gr_lo_get_handler (SIM_CPU *, UINT); 61 extern void frvbf_h_gr_lo_set_handler (SIM_CPU *, UINT, UHI); 62 extern DI frvbf_h_gr_double_get_handler (SIM_CPU *, UINT); 63 extern void frvbf_h_gr_double_set_handler (SIM_CPU *, UINT, DI); 64 extern SF frvbf_h_fr_get_handler (SIM_CPU *, UINT); 65 extern void frvbf_h_fr_set_handler (SIM_CPU *, UINT, SF); 66 extern DF frvbf_h_fr_double_get_handler (SIM_CPU *, UINT); 67 extern void frvbf_h_fr_double_set_handler (SIM_CPU *, UINT, DF); 68 extern USI frvbf_h_fr_int_get_handler (SIM_CPU *, UINT); 69 extern void frvbf_h_fr_int_set_handler (SIM_CPU *, UINT, USI); 70 extern DI frvbf_h_cpr_double_get_handler (SIM_CPU *, UINT); 71 extern void frvbf_h_cpr_double_set_handler (SIM_CPU *, UINT, DI); 72 extern void frvbf_h_gr_quad_set_handler (SIM_CPU *, UINT, SI *); 73 extern void frvbf_h_fr_quad_set_handler (SIM_CPU *, UINT, SI *); 74 extern void frvbf_h_cpr_quad_set_handler (SIM_CPU *, UINT, SI *); 75 extern void frvbf_h_psr_s_set_handler (SIM_CPU *, BI); 76 77 extern USI spr_psr_get_handler (SIM_CPU *); 78 extern void spr_psr_set_handler (SIM_CPU *, USI); 79 extern USI spr_tbr_get_handler (SIM_CPU *); 80 extern void spr_tbr_set_handler (SIM_CPU *, USI); 81 extern USI spr_bpsr_get_handler (SIM_CPU *); 82 extern void spr_bpsr_set_handler (SIM_CPU *, USI); 83 extern USI spr_ccr_get_handler (SIM_CPU *); 84 extern void spr_ccr_set_handler (SIM_CPU *, USI); 85 extern void spr_cccr_set_handler (SIM_CPU *, USI); 86 extern USI spr_cccr_get_handler (SIM_CPU *); 87 extern USI spr_isr_get_handler (SIM_CPU *); 88 extern void spr_isr_set_handler (SIM_CPU *, USI); 89 extern USI spr_sr_get_handler (SIM_CPU *, UINT); 90 extern void spr_sr_set_handler (SIM_CPU *, UINT, USI); 91 92 extern void frvbf_switch_supervisor_user_context (SIM_CPU *); 93 94 extern QI frvbf_set_icc_for_shift_left (SIM_CPU *, SI, SI, QI); 95 extern QI frvbf_set_icc_for_shift_right (SIM_CPU *, SI, SI, QI); 96 97 /* Insn semantics. */ 98 extern void frvbf_signed_integer_divide (SIM_CPU *, SI, SI, int, int); 99 extern void frvbf_unsigned_integer_divide (SIM_CPU *, USI, USI, int, int); 100 extern SI frvbf_shift_left_arith_saturate (SIM_CPU *, SI, SI); 101 extern SI frvbf_iacc_cut (SIM_CPU *, DI, SI); 102 103 extern void frvbf_clear_accumulators (SIM_CPU *, SI, int); 104 105 extern SI frvbf_scan_result (SIM_CPU *, SI); 106 extern SI frvbf_cut (SIM_CPU *, SI, SI, SI); 107 extern SI frvbf_media_cut (SIM_CPU *, DI, SI); 108 extern SI frvbf_media_cut_ss (SIM_CPU *, DI, SI); 109 extern void frvbf_media_cop (SIM_CPU *, int); 110 extern UQI frvbf_cr_logic (SIM_CPU *, SI, UQI, UQI); 111 112 extern void frvbf_set_write_next_vliw_addr_to_LR (SIM_CPU *, int); 113 extern int frvbf_write_next_vliw_addr_to_LR; 114 115 extern void frvbf_set_ne_index (SIM_CPU *, int); 116 extern void frvbf_force_update (SIM_CPU *); 117 118 #define GETTWI GETTSI 119 #define SETTWI SETTSI 120 #define LEUINT LEUSI 121 122 /* Hardware/device support. 123 ??? Will eventually want to move device stuff to config files. */ 124 125 /* maintain the address of the start of the previous VLIW insn sequence. */ 126 extern IADDR previous_vliw_pc; 127 extern CGEN_ATTR_VALUE_ENUM_TYPE frv_current_fm_slot; 128 129 /* Hardware status. */ 130 #define GET_HSR0() GET_H_SPR (H_SPR_HSR0) 131 #define SET_HSR0(hsr0) SET_H_SPR (H_SPR_HSR0, (hsr0)) 132 133 #define GET_HSR0_ICE(hsr0) (((hsr0) >> 31) & 1) 134 #define SET_HSR0_ICE(hsr0) ((hsr0) |= (1 << 31)) 135 #define CLEAR_HSR0_ICE(hsr0) ((hsr0) &= ~(1 << 31)) 136 137 #define GET_HSR0_DCE(hsr0) (((hsr0) >> 30) & 1) 138 #define SET_HSR0_DCE(hsr0) ((hsr0) |= (1 << 30)) 139 #define CLEAR_HSR0_DCE(hsr0) ((hsr0) &= ~(1 << 30)) 140 141 #define GET_HSR0_CBM(hsr0) (((hsr0) >> 27) & 1) 142 #define GET_HSR0_RME(hsr0) (((hsr0) >> 22) & 1) 143 #define GET_HSR0_SA(hsr0) (((hsr0) >> 12) & 1) 144 #define GET_HSR0_FRN(hsr0) (((hsr0) >> 11) & 1) 145 #define GET_HSR0_GRN(hsr0) (((hsr0) >> 10) & 1) 146 #define GET_HSR0_FRHE(hsr0) (((hsr0) >> 9) & 1) 147 #define GET_HSR0_FRLE(hsr0) (((hsr0) >> 8) & 1) 148 #define GET_HSR0_GRHE(hsr0) (((hsr0) >> 7) & 1) 149 #define GET_HSR0_GRLE(hsr0) (((hsr0) >> 6) & 1) 150 151 #define GET_IHSR8() GET_H_SPR (H_SPR_IHSR8) 152 #define GET_IHSR8_NBC(ihsr8) ((ihsr8) & 1) 153 #define GET_IHSR8_ICDM(ihsr8) (((ihsr8) >> 1) & 1) 154 #define GET_IHSR8_ICWE(ihsr8) (((ihsr8) >> 8) & 7) 155 #define GET_IHSR8_DCWE(ihsr8) (((ihsr8) >> 12) & 7) 156 157 void frvbf_insn_cache_preload (SIM_CPU *, SI, USI, int); 158 void frvbf_data_cache_preload (SIM_CPU *, SI, USI, int); 159 void frvbf_insn_cache_unlock (SIM_CPU *, SI); 160 void frvbf_data_cache_unlock (SIM_CPU *, SI); 161 void frvbf_insn_cache_invalidate (SIM_CPU *, SI, int); 162 void frvbf_data_cache_invalidate (SIM_CPU *, SI, int); 163 void frvbf_data_cache_flush (SIM_CPU *, SI, int); 164 165 /* FR-V Interrupt classes. 166 These are declared in order of increasing priority. */ 167 enum frv_interrupt_class 168 { 169 FRV_EXTERNAL_INTERRUPT, 170 FRV_SOFTWARE_INTERRUPT, 171 FRV_PROGRAM_INTERRUPT, 172 FRV_BREAK_INTERRUPT, 173 FRV_RESET_INTERRUPT, 174 NUM_FRV_INTERRUPT_CLASSES 175 }; 176 177 /* FR-V Interrupt kinds. 178 These are declared in order of increasing priority. */ 179 enum frv_interrupt_kind 180 { 181 /* External interrupts */ 182 FRV_INTERRUPT_LEVEL_1, 183 FRV_INTERRUPT_LEVEL_2, 184 FRV_INTERRUPT_LEVEL_3, 185 FRV_INTERRUPT_LEVEL_4, 186 FRV_INTERRUPT_LEVEL_5, 187 FRV_INTERRUPT_LEVEL_6, 188 FRV_INTERRUPT_LEVEL_7, 189 FRV_INTERRUPT_LEVEL_8, 190 FRV_INTERRUPT_LEVEL_9, 191 FRV_INTERRUPT_LEVEL_10, 192 FRV_INTERRUPT_LEVEL_11, 193 FRV_INTERRUPT_LEVEL_12, 194 FRV_INTERRUPT_LEVEL_13, 195 FRV_INTERRUPT_LEVEL_14, 196 FRV_INTERRUPT_LEVEL_15, 197 /* Software interrupt */ 198 FRV_TRAP_INSTRUCTION, 199 /* Program interrupts */ 200 FRV_COMMIT_EXCEPTION, 201 FRV_DIVISION_EXCEPTION, 202 FRV_DATA_STORE_ERROR, 203 FRV_DATA_ACCESS_EXCEPTION, 204 FRV_DATA_ACCESS_MMU_MISS, 205 FRV_DATA_ACCESS_ERROR, 206 FRV_MP_EXCEPTION, 207 FRV_FP_EXCEPTION, 208 FRV_MEM_ADDRESS_NOT_ALIGNED, 209 FRV_REGISTER_EXCEPTION, 210 FRV_MP_DISABLED, 211 FRV_FP_DISABLED, 212 FRV_PRIVILEGED_INSTRUCTION, 213 FRV_ILLEGAL_INSTRUCTION, 214 FRV_INSTRUCTION_ACCESS_EXCEPTION, 215 FRV_INSTRUCTION_ACCESS_ERROR, 216 FRV_INSTRUCTION_ACCESS_MMU_MISS, 217 FRV_COMPOUND_EXCEPTION, 218 /* Break interrupt */ 219 FRV_BREAK_EXCEPTION, 220 /* Reset interrupt */ 221 FRV_RESET, 222 NUM_FRV_INTERRUPT_KINDS 223 }; 224 225 /* FRV interrupt exception codes */ 226 enum frv_ec 227 { 228 FRV_EC_DATA_STORE_ERROR = 0x00, 229 FRV_EC_INSTRUCTION_ACCESS_MMU_MISS = 0x01, 230 FRV_EC_INSTRUCTION_ACCESS_ERROR = 0x02, 231 FRV_EC_INSTRUCTION_ACCESS_EXCEPTION = 0x03, 232 FRV_EC_PRIVILEGED_INSTRUCTION = 0x04, 233 FRV_EC_ILLEGAL_INSTRUCTION = 0x05, 234 FRV_EC_FP_DISABLED = 0x06, 235 FRV_EC_MP_DISABLED = 0x07, 236 FRV_EC_MEM_ADDRESS_NOT_ALIGNED = 0x0b, 237 FRV_EC_REGISTER_EXCEPTION = 0x0c, 238 FRV_EC_FP_EXCEPTION = 0x0d, 239 FRV_EC_MP_EXCEPTION = 0x0e, 240 FRV_EC_DATA_ACCESS_ERROR = 0x10, 241 FRV_EC_DATA_ACCESS_MMU_MISS = 0x11, 242 FRV_EC_DATA_ACCESS_EXCEPTION = 0x12, 243 FRV_EC_DIVISION_EXCEPTION = 0x13, 244 FRV_EC_COMMIT_EXCEPTION = 0x14, 245 FRV_EC_NOT_EXECUTED = 0x1f, 246 FRV_EC_INTERRUPT_LEVEL_1 = FRV_EC_NOT_EXECUTED, 247 FRV_EC_INTERRUPT_LEVEL_2 = FRV_EC_NOT_EXECUTED, 248 FRV_EC_INTERRUPT_LEVEL_3 = FRV_EC_NOT_EXECUTED, 249 FRV_EC_INTERRUPT_LEVEL_4 = FRV_EC_NOT_EXECUTED, 250 FRV_EC_INTERRUPT_LEVEL_5 = FRV_EC_NOT_EXECUTED, 251 FRV_EC_INTERRUPT_LEVEL_6 = FRV_EC_NOT_EXECUTED, 252 FRV_EC_INTERRUPT_LEVEL_7 = FRV_EC_NOT_EXECUTED, 253 FRV_EC_INTERRUPT_LEVEL_8 = FRV_EC_NOT_EXECUTED, 254 FRV_EC_INTERRUPT_LEVEL_9 = FRV_EC_NOT_EXECUTED, 255 FRV_EC_INTERRUPT_LEVEL_10 = FRV_EC_NOT_EXECUTED, 256 FRV_EC_INTERRUPT_LEVEL_11 = FRV_EC_NOT_EXECUTED, 257 FRV_EC_INTERRUPT_LEVEL_12 = FRV_EC_NOT_EXECUTED, 258 FRV_EC_INTERRUPT_LEVEL_13 = FRV_EC_NOT_EXECUTED, 259 FRV_EC_INTERRUPT_LEVEL_14 = FRV_EC_NOT_EXECUTED, 260 FRV_EC_INTERRUPT_LEVEL_15 = FRV_EC_NOT_EXECUTED, 261 FRV_EC_TRAP_INSTRUCTION = FRV_EC_NOT_EXECUTED, 262 FRV_EC_COMPOUND_EXCEPTION = FRV_EC_NOT_EXECUTED, 263 FRV_EC_BREAK_EXCEPTION = FRV_EC_NOT_EXECUTED, 264 FRV_EC_RESET = FRV_EC_NOT_EXECUTED 265 }; 266 267 /* FR-V Interrupt. 268 This struct contains enough information to describe a particular interrupt 269 occurance. */ 270 struct frv_interrupt 271 { 272 enum frv_interrupt_kind kind; 273 enum frv_ec ec; 274 enum frv_interrupt_class iclass; 275 unsigned char deferred; 276 unsigned char precise; 277 unsigned char handler_offset; 278 }; 279 280 /* FR-V Interrupt table. 281 Describes the interrupts supported by the FR-V. */ 282 extern struct frv_interrupt frv_interrupt_table[]; 283 284 /* FR-V Interrupt State. 285 Interrupts are queued during execution of parallel insns and the interupt(s) 286 to be handled determined by analysing the queue after each VLIW insn. */ 287 #define FRV_INTERRUPT_QUEUE_SIZE (4 * 4) /* 4 interrupts x 4 insns for now. */ 288 289 /* register_exception codes */ 290 enum frv_rec 291 { 292 FRV_REC_UNIMPLEMENTED = 0, 293 FRV_REC_UNALIGNED = 1 294 }; 295 296 /* instruction_access_exception codes */ 297 enum frv_iaec 298 { 299 FRV_IAEC_PROTECT_VIOLATION = 1 300 }; 301 302 /* data_access_exception codes */ 303 enum frv_daec 304 { 305 FRV_DAEC_PROTECT_VIOLATION = 1 306 }; 307 308 /* division_exception ISR codes */ 309 enum frv_dtt 310 { 311 FRV_DTT_NO_EXCEPTION = 0, 312 FRV_DTT_DIVISION_BY_ZERO = 1, 313 FRV_DTT_OVERFLOW = 2, 314 FRV_DTT_BOTH = 3 315 }; 316 317 /* data written during an insn causing an interrupt */ 318 struct frv_data_written 319 { 320 USI words[4]; /* Actual data in words */ 321 int length; /* length of data written */ 322 }; 323 324 /* fp_exception info */ 325 /* Trap codes for FSR0 and FQ registers. */ 326 enum frv_fsr_traps 327 { 328 FSR_INVALID_OPERATION = 0x20, 329 FSR_OVERFLOW = 0x10, 330 FSR_UNDERFLOW = 0x08, 331 FSR_DIVISION_BY_ZERO = 0x04, 332 FSR_INEXACT = 0x02, 333 FSR_DENORMAL_INPUT = 0x01, 334 FSR_NO_EXCEPTION = 0 335 }; 336 337 /* Floating point trap types for FSR. */ 338 enum frv_fsr_ftt 339 { 340 FTT_NONE = 0, 341 FTT_IEEE_754_EXCEPTION = 1, 342 FTT_UNIMPLEMENTED_FPOP = 3, 343 FTT_SEQUENCE_ERROR = 4, 344 FTT_INVALID_FR = 6, 345 FTT_DENORMAL_INPUT = 7 346 }; 347 348 struct frv_fp_exception_info 349 { 350 enum frv_fsr_traps fsr_mask; /* interrupt code for FSR */ 351 enum frv_fsr_ftt ftt; /* floating point trap type */ 352 }; 353 354 struct frv_interrupt_queue_element 355 { 356 enum frv_interrupt_kind kind; /* kind of interrupt */ 357 IADDR vpc; /* address of insn causing interrupt */ 358 int slot; /* VLIW slot containing the insn. */ 359 USI eaddress; /* address of data access */ 360 union { 361 enum frv_rec rec; /* register exception code */ 362 enum frv_iaec iaec; /* insn access exception code */ 363 enum frv_daec daec; /* data access exception code */ 364 enum frv_dtt dtt; /* division exception code */ 365 struct frv_fp_exception_info fp_info; 366 struct frv_data_written data_written; 367 } u; 368 }; 369 370 struct frv_interrupt_timer 371 { 372 int enabled; 373 unsigned value; 374 unsigned current; 375 enum frv_interrupt_kind interrupt; 376 }; 377 378 struct frv_interrupt_state 379 { 380 /* The interrupt queue */ 381 struct frv_interrupt_queue_element queue[FRV_INTERRUPT_QUEUE_SIZE]; 382 int queue_index; 383 384 /* interrupt queue element causing imprecise interrupt. */ 385 struct frv_interrupt_queue_element *imprecise_interrupt; 386 387 /* interrupt timer. */ 388 struct frv_interrupt_timer timer; 389 390 /* The last data written stored as an array of words. */ 391 struct frv_data_written data_written; 392 393 /* The vliw slot of the insn causing the interrupt. */ 394 int slot; 395 396 /* target register index for non excepting insns. */ 397 #define NE_NOFLAG (-1) 398 int ne_index; 399 400 /* Accumulated NE flags for non excepting floating point insns. */ 401 SI f_ne_flags[2]; 402 }; 403 404 extern struct frv_interrupt_state frv_interrupt_state; 405 406 /* Macros to manipulate the PSR. */ 407 #define GET_PSR() GET_H_SPR (H_SPR_PSR) 408 409 #define SET_PSR_ET(psr, et) ( \ 410 (psr) = ((psr) & ~0x1) | ((et) & 0x1) \ 411 ) 412 413 #define GET_PSR_PS(psr) (((psr) >> 1) & 1) 414 415 #define SET_PSR_S(psr, s) ( \ 416 (psr) = ((psr) & ~(0x1 << 2)) | (((s) & 0x1) << 2) \ 417 ) 418 419 /* Macros to handle the ISR register. */ 420 #define GET_ISR() GET_H_SPR (H_SPR_ISR) 421 #define SET_ISR(isr) SET_H_SPR (H_SPR_ISR, (isr)) 422 423 #define GET_ISR_EDE(isr) (((isr) >> 5) & 1) 424 425 #define GET_ISR_DTT(isr) (((isr) >> 3) & 3) 426 #define SET_ISR_DTT(isr, dtt) ( \ 427 (isr) = ((isr) & ~(0x3 << 3)) | (((dtt) & 0x3) << 3) \ 428 ) 429 430 #define SET_ISR_AEXC(isr) ((isr) |= (1 << 2)) 431 432 #define GET_ISR_EMAM(isr) ((isr) & 1) 433 434 /* Macros to handle exception status registers. 435 Get and set the hardware directly, since we may be getting/setting fields 436 which are not accessible to the user. */ 437 #define GET_ESR(index) \ 438 (CPU (h_spr[H_SPR_ESR0 + (index)])) 439 #define SET_ESR(index, esr) \ 440 (CPU (h_spr[H_SPR_ESR0 + (index)]) = (esr)) 441 442 #define SET_ESR_VALID(esr) ((esr) |= 1) 443 #define CLEAR_ESR_VALID(esr) ((esr) &= ~1) 444 445 #define SET_ESR_EC(esr, ec) ( \ 446 (esr) = ((esr) & ~(0x1f << 1)) | (((ec) & 0x1f) << 1) \ 447 ) 448 449 #define SET_ESR_REC(esr, rec) ( \ 450 (esr) = ((esr) & ~(0x3 << 6)) | (((rec) & 0x3) << 6) \ 451 ) 452 453 #define SET_ESR_IAEC(esr, iaec) ( \ 454 (esr) = ((esr) & ~(0x1 << 8)) | (((iaec) & 0x1) << 8) \ 455 ) 456 457 #define SET_ESR_DAEC(esr, daec) ( \ 458 (esr) = ((esr) & ~(0x1 << 9)) | (((daec) & 0x1) << 9) \ 459 ) 460 461 #define SET_ESR_EAV(esr) ((esr) |= (1 << 11)) 462 #define CLEAR_ESR_EAV(esr) ((esr) &= ~(1 << 11)) 463 464 #define GET_ESR_EDV(esr) (((esr) >> 12) & 1) 465 #define SET_ESR_EDV(esr) ((esr) |= (1 << 12)) 466 #define CLEAR_ESR_EDV(esr) ((esr) &= ~(1 << 12)) 467 468 #define GET_ESR_EDN(esr) ( \ 469 ((esr) >> 13) & 0xf \ 470 ) 471 #define SET_ESR_EDN(esr, edn) ( \ 472 (esr) = ((esr) & ~(0xf << 13)) | (((edn) & 0xf) << 13) \ 473 ) 474 475 #define SET_EPCR(index, address) \ 476 (CPU (h_spr[H_SPR_EPCR0 + (index)]) = (address)) 477 478 #define SET_EAR(index, address) \ 479 (CPU (h_spr[H_SPR_EAR0 + (index)]) = (address)) 480 481 #define SET_EDR(index, edr) \ 482 (CPU (h_spr[H_SPR_EDR0 + (index)]) = (edr)) 483 484 #define GET_ESFR(index) \ 485 (CPU (h_spr[H_SPR_ESFR0 + (index)])) 486 #define SET_ESFR(index, esfr) \ 487 (CPU (h_spr[H_SPR_ESFR0 + (index)]) = (esfr)) 488 489 #define GET_ESFR_FLAG(findex) ( \ 490 (findex) > 31 ? \ 491 ((CPU (h_spr[H_SPR_ESFR0]) >> ((findex)-32)) & 1) \ 492 : \ 493 ((CPU (h_spr[H_SPR_ESFR1]) >> (findex)) & 1) \ 494 ) 495 #define SET_ESFR_FLAG(findex) ( \ 496 (findex) > 31 ? \ 497 (CPU (h_spr[H_SPR_ESFR0]) = \ 498 (CPU (h_spr[H_SPR_ESFR0]) | (1 << ((findex)-32))) \ 499 ) : \ 500 (CPU (h_spr[H_SPR_ESFR1]) = \ 501 (CPU (h_spr[H_SPR_ESFR1]) | (1 << (findex))) \ 502 ) \ 503 ) 504 505 /* The FSR registers. 506 Get and set the hardware directly, since we may be getting/setting fields 507 which are not accessible to the user. */ 508 #define GET_FSR(index) \ 509 (CPU (h_spr[H_SPR_FSR0 + (index)])) 510 #define SET_FSR(index, fsr) \ 511 (CPU (h_spr[H_SPR_FSR0 + (index)]) = (fsr)) 512 513 #define GET_FSR_TEM(fsr) ( \ 514 ((fsr) >> 24) & 0x3f \ 515 ) 516 517 #define SET_FSR_QNE(fsr) ((fsr) |= (1 << 20)) 518 #define GET_FSR_QNE(fsr) (((fsr) >> 20) & 1) 519 520 #define SET_FSR_FTT(fsr, ftt) ( \ 521 (fsr) = ((fsr) & ~(0x7 << 17)) | (((ftt) & 0x7) << 17) \ 522 ) 523 524 #define GET_FSR_AEXC(fsr) ( \ 525 ((fsr) >> 10) & 0x3f \ 526 ) 527 #define SET_FSR_AEXC(fsr, aexc) ( \ 528 (fsr) = ((fsr) & ~(0x3f << 10)) | (((aexc) & 0x3f) << 10) \ 529 ) 530 531 /* SIMD instruction exception codes for FQ. */ 532 enum frv_sie 533 { 534 SIE_NIL = 0, 535 SIE_FRi = 1, 536 SIE_FRi_1 = 2 537 }; 538 539 /* MIV field of FQ. */ 540 enum frv_miv 541 { 542 MIV_FLOAT = 0, 543 MIV_MEDIA = 1 544 }; 545 546 /* The FQ registers are 64 bits wide and are implemented as 32 bit pairs. The 547 index here refers to the low order 32 bit element. 548 Get and set the hardware directly, since we may be getting/setting fields 549 which are not accessible to the user. */ 550 #define GET_FQ(index) \ 551 (CPU (h_spr[H_SPR_FQST0 + 2 * (index)])) 552 #define SET_FQ(index, fq) \ 553 (CPU (h_spr[H_SPR_FQST0 + 2 * (index)]) = (fq)) 554 555 #define SET_FQ_MIV(fq, miv) ( \ 556 (fq) = ((fq) & ~(0x1 << 31)) | (((miv) & 0x1) << 31) \ 557 ) 558 559 #define SET_FQ_SIE(fq, sie) ( \ 560 (fq) = ((fq) & ~(0x3 << 15)) | (((sie) & 0x3) << 15) \ 561 ) 562 563 #define SET_FQ_FTT(fq, ftt) ( \ 564 (fq) = ((fq) & ~(0x7 << 7)) | (((ftt) & 0x7) << 7) \ 565 ) 566 567 #define SET_FQ_CEXC(fq, cexc) ( \ 568 (fq) = ((fq) & ~(0x3f << 1)) | (((cexc) & 0x3f) << 1) \ 569 ) 570 571 #define GET_FQ_VALID(fq) ((fq) & 1) 572 #define SET_FQ_VALID(fq) ((fq) |= 1) 573 574 #define SET_FQ_OPC(index, insn) \ 575 (CPU (h_spr[H_SPR_FQOP0 + 2 * (index)]) = (insn)) 576 577 /* mp_exception support. */ 578 /* Media trap types for MSR. */ 579 enum frv_msr_mtt 580 { 581 MTT_NONE = 0, 582 MTT_OVERFLOW = 1, 583 MTT_ACC_NOT_ALIGNED = 2, 584 MTT_ACC_NOT_IMPLEMENTED = 2, /* Yes -- same value as MTT_ACC_NOT_ALIGNED. */ 585 MTT_CR_NOT_ALIGNED = 3, 586 MTT_UNIMPLEMENTED_MPOP = 5, 587 MTT_INVALID_FR = 6 588 }; 589 590 /* Media status registers. 591 Get and set the hardware directly, since we may be getting/setting fields 592 which are not accessible to the user. */ 593 #define GET_MSR(index) \ 594 (CPU (h_spr[H_SPR_MSR0 + (index)])) 595 #define SET_MSR(index, msr) \ 596 (CPU (h_spr[H_SPR_MSR0 + (index)]) = (msr)) 597 598 #define GET_MSR_AOVF(msr) ((msr) & 1) 599 #define SET_MSR_AOVF(msr) ((msr) |= 1) 600 601 #define GET_MSR_OVF(msr) ( \ 602 ((msr) >> 1) & 0x1 \ 603 ) 604 #define SET_MSR_OVF(msr) ( \ 605 (msr) |= (1 << 1) \ 606 ) 607 #define CLEAR_MSR_OVF(msr) ( \ 608 (msr) &= ~(1 << 1) \ 609 ) 610 611 #define OR_MSR_SIE(msr, sie) ( \ 612 (msr) |= (((sie) & 0xf) << 2) \ 613 ) 614 #define CLEAR_MSR_SIE(msr) ( \ 615 (msr) &= ~(0xf << 2) \ 616 ) 617 618 #define GET_MSR_MTT(msr) ( \ 619 ((msr) >> 12) & 0x7 \ 620 ) 621 #define SET_MSR_MTT(msr, mtt) ( \ 622 (msr) = ((msr) & ~(0x7 << 12)) | (((mtt) & 0x7) << 12) \ 623 ) 624 #define GET_MSR_EMCI(msr) ( \ 625 ((msr) >> 24) & 0x1 \ 626 ) 627 #define GET_MSR_MPEM(msr) ( \ 628 ((msr) >> 27) & 0x1 \ 629 ) 630 #define GET_MSR_SRDAV(msr) ( \ 631 ((msr) >> 28) & 0x1 \ 632 ) 633 #define GET_MSR_RDAV(msr) ( \ 634 ((msr) >> 29) & 0x1 \ 635 ) 636 #define GET_MSR_RD(msr) ( \ 637 ((msr) >> 30) & 0x3 \ 638 ) 639 640 void frvbf_media_register_not_aligned (SIM_CPU *); 641 void frvbf_media_acc_not_aligned (SIM_CPU *); 642 void frvbf_media_cr_not_aligned (SIM_CPU *); 643 void frvbf_media_overflow (SIM_CPU *, int); 644 SI frvbf_media_average (SIM_CPU *, SI, SI); 645 646 /* Functions for queuing and processing interrupts. */ 647 struct frv_interrupt_queue_element * 648 frv_queue_break_interrupt (SIM_CPU *); 649 650 struct frv_interrupt_queue_element * 651 frv_queue_software_interrupt (SIM_CPU *, SI); 652 653 struct frv_interrupt_queue_element * 654 frv_queue_program_interrupt (SIM_CPU *, enum frv_interrupt_kind); 655 656 struct frv_interrupt_queue_element * 657 frv_queue_external_interrupt (SIM_CPU *, enum frv_interrupt_kind); 658 659 struct frv_interrupt_queue_element * 660 frv_queue_illegal_instruction_interrupt (SIM_CPU *, const CGEN_INSN *); 661 662 struct frv_interrupt_queue_element * 663 frv_queue_privileged_instruction_interrupt (SIM_CPU *, const CGEN_INSN *); 664 665 struct frv_interrupt_queue_element * 666 frv_queue_float_disabled_interrupt (SIM_CPU *); 667 668 struct frv_interrupt_queue_element * 669 frv_queue_media_disabled_interrupt (SIM_CPU *); 670 671 struct frv_interrupt_queue_element * 672 frv_queue_non_implemented_instruction_interrupt (SIM_CPU *, const CGEN_INSN *); 673 674 struct frv_interrupt_queue_element * 675 frv_queue_register_exception_interrupt (SIM_CPU *, enum frv_rec); 676 677 struct frv_interrupt_queue_element * 678 frv_queue_mem_address_not_aligned_interrupt (SIM_CPU *, USI); 679 680 struct frv_interrupt_queue_element * 681 frv_queue_data_access_error_interrupt (SIM_CPU *, USI); 682 683 struct frv_interrupt_queue_element * 684 frv_queue_data_access_exception_interrupt (SIM_CPU *); 685 686 struct frv_interrupt_queue_element * 687 frv_queue_instruction_access_error_interrupt (SIM_CPU *); 688 689 struct frv_interrupt_queue_element * 690 frv_queue_instruction_access_exception_interrupt (SIM_CPU *); 691 692 struct frv_interrupt_queue_element * 693 frv_queue_fp_exception_interrupt (SIM_CPU *, struct frv_fp_exception_info *); 694 695 enum frv_dtt frvbf_division_exception (SIM_CPU *, enum frv_dtt, int, int); 696 697 struct frv_interrupt_queue_element * 698 frv_queue_division_exception_interrupt (SIM_CPU *, enum frv_dtt); 699 700 struct frv_interrupt_queue_element * 701 frv_queue_interrupt (SIM_CPU *, enum frv_interrupt_kind); 702 703 void 704 frv_set_interrupt_queue_slot (SIM_CPU *, struct frv_interrupt_queue_element *); 705 706 void frv_set_mp_exception_registers (SIM_CPU *, enum frv_msr_mtt, int); 707 void frv_detect_insn_access_interrupts (SIM_CPU *, SCACHE *); 708 709 void frv_process_interrupts (SIM_CPU *); 710 711 void frv_break_interrupt (SIM_CPU *, struct frv_interrupt *, IADDR); 712 void frv_non_operating_interrupt (SIM_CPU *, enum frv_interrupt_kind, IADDR); 713 void frv_program_interrupt ( 714 SIM_CPU *, struct frv_interrupt_queue_element *, IADDR 715 ); 716 void frv_software_interrupt ( 717 SIM_CPU *, struct frv_interrupt_queue_element *, IADDR 718 ); 719 void frv_external_interrupt ( 720 SIM_CPU *, struct frv_interrupt_queue_element *, IADDR 721 ); 722 void frv_program_or_software_interrupt ( 723 SIM_CPU *, struct frv_interrupt *, IADDR 724 ); 725 void frv_clear_interrupt_classes ( 726 enum frv_interrupt_class, enum frv_interrupt_class 727 ); 728 729 void 730 frv_save_data_written_for_interrupts (SIM_CPU *, CGEN_WRITE_QUEUE_ELEMENT *); 731 732 /* Special purpose traps. */ 733 #define TRAP_SYSCALL 0x80 734 #define TRAP_BREAKPOINT 0x81 735 #define TRAP_REGDUMP1 0x82 736 #define TRAP_REGDUMP2 0x83 737 738 /* Handle the trap insns */ 739 void frv_itrap (SIM_CPU *, PCADDR, USI, int); 740 void frv_mtrap (SIM_CPU *); 741 /* Handle the break insn. */ 742 void frv_break (SIM_CPU *); 743 /* Handle the rett insn. */ 744 USI frv_rett (SIM_CPU *current_cpu, PCADDR pc, BI debug_field); 745 746 /* Parallel write queue flags. */ 747 #define FRV_WRITE_QUEUE_FORCE_WRITE 1 748 749 #define CGEN_WRITE_QUEUE_ELEMENT_PIPE(element) CGEN_WRITE_QUEUE_ELEMENT_WORD1 (element) 750 751 /* Functions and macros for handling non-excepting instruction side effects. 752 Get and set the hardware directly, since we may be getting/setting fields 753 which are not accessible to the user. */ 754 #define GET_NECR() (GET_H_SPR (H_SPR_NECR)) 755 #define GET_NECR_ELOS(necr) (((necr) >> 6) & 1) 756 #define GET_NECR_NEN(necr) (((necr) >> 1) & 0x1f) 757 #define GET_NECR_VALID(necr) (((necr) ) & 1) 758 759 #define NO_NESR (-1) 760 /* NESR field values. See Tables 30-33 in section 4.4.2.1 of the FRV 761 Architecture volume 1. */ 762 #define NESR_MEM_ADDRESS_NOT_ALIGNED 0x0b 763 #define NESR_REGISTER_NOT_ALIGNED 0x1 764 #define NESR_UQI_SIZE 0 765 #define NESR_QI_SIZE 1 766 #define NESR_UHI_SIZE 2 767 #define NESR_HI_SIZE 3 768 #define NESR_SI_SIZE 4 769 #define NESR_DI_SIZE 5 770 #define NESR_XI_SIZE 6 771 772 #define GET_NESR(index) GET_H_SPR (H_SPR_NESR0 + (index)) 773 #define SET_NESR(index, value) ( \ 774 sim_queue_fn_si_write (current_cpu, frvbf_h_spr_set, \ 775 H_SPR_NESR0 + (index), (value)), \ 776 frvbf_force_update (current_cpu) \ 777 ) 778 #define GET_NESR_VALID(nesr) ((nesr) & 1) 779 #define SET_NESR_VALID(nesr) ((nesr) |= 1) 780 781 #define SET_NESR_EAV(nesr) ((nesr) |= (1 << 31)) 782 783 #define GET_NESR_FR(nesr) (((nesr) >> 30) & 1) 784 #define SET_NESR_FR(nesr) ((nesr) |= (1 << 30)) 785 #define CLEAR_NESR_FR(nesr) ((nesr) &= ~(1 << 30)) 786 787 #define GET_NESR_DRN(nesr) (((nesr) >> 24) & 0x3f) 788 #define SET_NESR_DRN(nesr, drn) ( \ 789 (nesr) = ((nesr) & ~(0x3f << 24)) | (((drn) & 0x3f) << 24) \ 790 ) 791 792 #define SET_NESR_SIZE(nesr, data_size) ( \ 793 (nesr) = ((nesr) & ~(0x7 << 21)) | (((data_size) & 0x7) << 21) \ 794 ) 795 796 #define SET_NESR_NEAN(nesr, index) ( \ 797 (nesr) = ((nesr) & ~(0x1f << 10)) | (((index) & 0x1f) << 10) \ 798 ) 799 800 #define GET_NESR_DAEC(nesr) (((nesr) >> 9) & 1) 801 #define SET_NESR_DAEC(nesr, daec) ( \ 802 (nesr) = ((nesr) & ~(1 << 9)) | (((daec) & 1) << 9) \ 803 ) 804 805 #define GET_NESR_REC(nesr) (((nesr) >> 6) & 3) 806 #define SET_NESR_REC(nesr, rec) ( \ 807 (nesr) = ((nesr) & ~(3 << 6)) | (((rec) & 3) << 6) \ 808 ) 809 810 #define GET_NESR_EC(nesr) (((nesr) >> 1) & 0x1f) 811 #define SET_NESR_EC(nesr, ec) ( \ 812 (nesr) = ((nesr) & ~(0x1f << 1)) | (((ec) & 0x1f) << 1) \ 813 ) 814 815 #define SET_NEEAR(index, address) ( \ 816 sim_queue_fn_si_write (current_cpu, frvbf_h_spr_set, \ 817 H_SPR_NEEAR0 + (index), (address)), \ 818 frvbf_force_update (current_cpu) \ 819 ) 820 821 #define GET_NE_FLAGS(flags, NE_base) ( \ 822 (flags)[0] = GET_H_SPR ((NE_base)), \ 823 (flags)[1] = GET_H_SPR ((NE_base) + 1) \ 824 ) 825 #define SET_NE_FLAGS(NE_base, flags) ( \ 826 sim_queue_fn_si_write (current_cpu, frvbf_h_spr_set, (NE_base), \ 827 (flags)[0]), \ 828 frvbf_force_update (current_cpu), \ 829 sim_queue_fn_si_write (current_cpu, frvbf_h_spr_set, (NE_base) + 1, \ 830 (flags)[1]), \ 831 frvbf_force_update (current_cpu) \ 832 ) 833 834 #define GET_NE_FLAG(flags, index) ( \ 835 (index) > 31 ? \ 836 ((flags[0] >> ((index) - 32)) & 1) \ 837 : \ 838 ((flags[1] >> (index)) & 1) \ 839 ) 840 #define SET_NE_FLAG(flags, index) ( \ 841 (index) > 31 ? \ 842 ((flags)[0] |= (1 << ((index) - 32))) \ 843 : \ 844 ((flags)[1] |= (1 << (index))) \ 845 ) 846 #define CLEAR_NE_FLAG(flags, index) ( \ 847 (index) > 31 ? \ 848 ((flags)[0] &= ~(1 << ((index) - 32))) \ 849 : \ 850 ((flags)[1] &= ~(1 << (index))) \ 851 ) 852 853 BI frvbf_check_non_excepting_load (SIM_CPU *, SI, SI, SI, SI, QI, BI); 854 void frvbf_check_recovering_store (SIM_CPU *, PCADDR, SI, int, int); 855 SI frvbf_check_acc_range (SIM_CPU *, SI); 856 void frvbf_check_swap_address (SIM_CPU *, SI); 857 858 void frvbf_clear_ne_flags (SIM_CPU *, SI, BI); 859 void frvbf_commit (SIM_CPU *, SI, BI); 860 861 void frvbf_fpu_error (CGEN_FPU *, int); 862 863 void frv_vliw_setup_insn (SIM_CPU *, const CGEN_INSN *); 864 865 extern int insns_in_slot[]; 866 867 #define COUNT_INSNS_IN_SLOT(slot) \ 868 { \ 869 if (WITH_PROFILE_MODEL_P) \ 870 ++insns_in_slot[slot]; \ 871 } 872 873 #define INSNS_IN_SLOT(slot) (insns_in_slot[slot]) 874 875 /* Multiple loads and stores. */ 876 void frvbf_load_quad_GR (SIM_CPU *, PCADDR, SI, SI); 877 void frvbf_load_quad_FRint (SIM_CPU *, PCADDR, SI, SI); 878 void frvbf_load_quad_CPR (SIM_CPU *, PCADDR, SI, SI); 879 void frvbf_store_quad_GR (SIM_CPU *, PCADDR, SI, SI); 880 void frvbf_store_quad_FRint (SIM_CPU *, PCADDR, SI, SI); 881 void frvbf_store_quad_CPR (SIM_CPU *, PCADDR, SI, SI); 882 883 /* Memory and cache support. */ 884 QI frvbf_read_mem_QI (SIM_CPU *, IADDR, SI); 885 UQI frvbf_read_mem_UQI (SIM_CPU *, IADDR, SI); 886 HI frvbf_read_mem_HI (SIM_CPU *, IADDR, SI); 887 UHI frvbf_read_mem_UHI (SIM_CPU *, IADDR, SI); 888 SI frvbf_read_mem_SI (SIM_CPU *, IADDR, SI); 889 SI frvbf_read_mem_WI (SIM_CPU *, IADDR, SI); 890 DI frvbf_read_mem_DI (SIM_CPU *, IADDR, SI); 891 DF frvbf_read_mem_DF (SIM_CPU *, IADDR, SI); 892 893 USI frvbf_read_imem_USI (SIM_CPU *, PCADDR); 894 895 void frvbf_write_mem_QI (SIM_CPU *, IADDR, SI, QI); 896 void frvbf_write_mem_UQI (SIM_CPU *, IADDR, SI, UQI); 897 void frvbf_write_mem_HI (SIM_CPU *, IADDR, SI, HI); 898 void frvbf_write_mem_UHI (SIM_CPU *, IADDR, SI, UHI); 899 void frvbf_write_mem_SI (SIM_CPU *, IADDR, SI, SI); 900 void frvbf_write_mem_WI (SIM_CPU *, IADDR, SI, SI); 901 void frvbf_write_mem_DI (SIM_CPU *, IADDR, SI, DI); 902 void frvbf_write_mem_DF (SIM_CPU *, IADDR, SI, DF); 903 904 void frvbf_mem_set_QI (SIM_CPU *, IADDR, SI, QI); 905 void frvbf_mem_set_HI (SIM_CPU *, IADDR, SI, HI); 906 void frvbf_mem_set_SI (SIM_CPU *, IADDR, SI, SI); 907 void frvbf_mem_set_DI (SIM_CPU *, IADDR, SI, DI); 908 void frvbf_mem_set_DF (SIM_CPU *, IADDR, SI, DF); 909 void frvbf_mem_set_XI (SIM_CPU *, IADDR, SI, SI *); 910 911 void frv_set_write_queue_slot (SIM_CPU *current_cpu); 912 913 /* FRV specific options. */ 914 extern const OPTION frv_options[]; 915 916 #endif /* FRV_SIM_H */ 917