sim/common/cgen-par.c

   1 /* Simulator parallel routines for CGEN simulators (and maybe others).
   2    Copyright (C) 1999-2024 Free Software Foundation, Inc.
   3    Contributed by Cygnus Solutions.
   4
   5 This file is part of the GNU instruction set simulator.
   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 /* This must come before any other includes.  */
  21 #include "defs.h"
  22
  23 #include <stdlib.h>
  24
  25 #include "sim-main.h"
  26 #include "cgen-mem.h"
  27 #include "cgen-par.h"
  28
  29 /* Functions required by the cgen interface.  These functions add various
  30    kinds of writes to the write queue.  */
  31 void sim_queue_bi_write (SIM_CPU *cpu, BI *target, BI value)
  32 {
  33   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
  34   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
  35   element->kind = CGEN_BI_WRITE;
  36   element->insn_address = CPU_PC_GET (cpu);
  37   element->kinds.bi_write.target = target;
  38   element->kinds.bi_write.value  = value;
  39 }
  40
  41 void sim_queue_qi_write (SIM_CPU *cpu, UQI *target, UQI value)
  42 {
  43   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
  44   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
  45   element->kind = CGEN_QI_WRITE;
  46   element->insn_address = CPU_PC_GET (cpu);
  47   element->kinds.qi_write.target = target;
  48   element->kinds.qi_write.value  = value;
  49 }
  50
  51 void sim_queue_si_write (SIM_CPU *cpu, SI *target, SI value)
  52 {
  53   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
  54   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
  55   element->kind = CGEN_SI_WRITE;
  56   element->insn_address = CPU_PC_GET (cpu);
  57   element->kinds.si_write.target = target;
  58   element->kinds.si_write.value  = value;
  59 }
  60
  61 void sim_queue_sf_write (SIM_CPU *cpu, SI *target, SF value)
  62 {
  63   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
  64   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
  65   element->kind = CGEN_SF_WRITE;
  66   element->insn_address = CPU_PC_GET (cpu);
  67   element->kinds.sf_write.target = target;
  68   element->kinds.sf_write.value  = value;
  69 }
  70
  71 void sim_queue_pc_write (SIM_CPU *cpu, USI value)
  72 {
  73   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
  74   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
  75   element->kind = CGEN_PC_WRITE;
  76   element->insn_address = CPU_PC_GET (cpu);
  77   element->kinds.pc_write.value = value;
  78 }
  79
  80 void sim_queue_fn_hi_write (
  81   SIM_CPU *cpu,
  82   void (*write_function)(SIM_CPU *cpu, UINT, UHI),
  83   UINT regno,
  84   UHI value
  85 )
  86 {
  87   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
  88   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
  89   element->kind = CGEN_FN_HI_WRITE;
  90   element->insn_address = CPU_PC_GET (cpu);
  91   element->kinds.fn_hi_write.function = write_function;
  92   element->kinds.fn_hi_write.regno = regno;
  93   element->kinds.fn_hi_write.value = value;
  94 }
  95
  96 void sim_queue_fn_si_write (
  97   SIM_CPU *cpu,
  98   void (*write_function)(SIM_CPU *cpu, UINT, USI),
  99   UINT regno,
 100   USI value
 101 )
 102 {
 103   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 104   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 105   element->kind = CGEN_FN_SI_WRITE;
 106   element->insn_address = CPU_PC_GET (cpu);
 107   element->kinds.fn_si_write.function = write_function;
 108   element->kinds.fn_si_write.regno = regno;
 109   element->kinds.fn_si_write.value = value;
 110 }
 111
 112 void sim_queue_fn_sf_write (
 113   SIM_CPU *cpu,
 114   void (*write_function)(SIM_CPU *cpu, UINT, SF),
 115   UINT regno,
 116   SF value
 117 )
 118 {
 119   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 120   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 121   element->kind = CGEN_FN_SF_WRITE;
 122   element->insn_address = CPU_PC_GET (cpu);
 123   element->kinds.fn_sf_write.function = write_function;
 124   element->kinds.fn_sf_write.regno = regno;
 125   element->kinds.fn_sf_write.value = value;
 126 }
 127
 128 void sim_queue_fn_di_write (
 129   SIM_CPU *cpu,
 130   void (*write_function)(SIM_CPU *cpu, UINT, DI),
 131   UINT regno,
 132   DI value
 133 )
 134 {
 135   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 136   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 137   element->kind = CGEN_FN_DI_WRITE;
 138   element->insn_address = CPU_PC_GET (cpu);
 139   element->kinds.fn_di_write.function = write_function;
 140   element->kinds.fn_di_write.regno = regno;
 141   element->kinds.fn_di_write.value = value;
 142 }
 143
 144 void sim_queue_fn_xi_write (
 145   SIM_CPU *cpu,
 146   void (*write_function)(SIM_CPU *cpu, UINT, SI *),
 147   UINT regno,
 148   SI *value
 149 )
 150 {
 151   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 152   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 153   element->kind = CGEN_FN_XI_WRITE;
 154   element->insn_address = CPU_PC_GET (cpu);
 155   element->kinds.fn_xi_write.function = write_function;
 156   element->kinds.fn_xi_write.regno = regno;
 157   element->kinds.fn_xi_write.value[0] = value[0];
 158   element->kinds.fn_xi_write.value[1] = value[1];
 159   element->kinds.fn_xi_write.value[2] = value[2];
 160   element->kinds.fn_xi_write.value[3] = value[3];
 161 }
 162
 163 void sim_queue_fn_df_write (
 164   SIM_CPU *cpu,
 165   void (*write_function)(SIM_CPU *cpu, UINT, DF),
 166   UINT regno,
 167   DF value
 168 )
 169 {
 170   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 171   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 172   element->kind = CGEN_FN_DF_WRITE;
 173   element->insn_address = CPU_PC_GET (cpu);
 174   element->kinds.fn_df_write.function = write_function;
 175   element->kinds.fn_df_write.regno = regno;
 176   element->kinds.fn_df_write.value = value;
 177 }
 178
 179 void sim_queue_fn_pc_write (
 180   SIM_CPU *cpu,
 181   void (*write_function)(SIM_CPU *cpu, USI),
 182   USI value
 183 )
 184 {
 185   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 186   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 187   element->kind = CGEN_FN_PC_WRITE;
 188   element->insn_address = CPU_PC_GET (cpu);
 189   element->kinds.fn_pc_write.function = write_function;
 190   element->kinds.fn_pc_write.value = value;
 191 }
 192
 193 void sim_queue_mem_qi_write (SIM_CPU *cpu, SI address, QI value)
 194 {
 195   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 196   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 197   element->kind = CGEN_MEM_QI_WRITE;
 198   element->insn_address = CPU_PC_GET (cpu);
 199   element->kinds.mem_qi_write.address = address;
 200   element->kinds.mem_qi_write.value   = value;
 201 }
 202
 203 void sim_queue_mem_hi_write (SIM_CPU *cpu, SI address, HI value)
 204 {
 205   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 206   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 207   element->kind = CGEN_MEM_HI_WRITE;
 208   element->insn_address = CPU_PC_GET (cpu);
 209   element->kinds.mem_hi_write.address = address;
 210   element->kinds.mem_hi_write.value   = value;
 211 }
 212
 213 void sim_queue_mem_si_write (SIM_CPU *cpu, SI address, SI value)
 214 {
 215   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 216   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 217   element->kind = CGEN_MEM_SI_WRITE;
 218   element->insn_address = CPU_PC_GET (cpu);
 219   element->kinds.mem_si_write.address = address;
 220   element->kinds.mem_si_write.value   = value;
 221 }
 222
 223 void sim_queue_mem_di_write (SIM_CPU *cpu, SI address, DI value)
 224 {
 225   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 226   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 227   element->kind = CGEN_MEM_DI_WRITE;
 228   element->insn_address = CPU_PC_GET (cpu);
 229   element->kinds.mem_di_write.address = address;
 230   element->kinds.mem_di_write.value   = value;
 231 }
 232
 233 void sim_queue_mem_df_write (SIM_CPU *cpu, SI address, DF value)
 234 {
 235   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 236   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 237   element->kind = CGEN_MEM_DF_WRITE;
 238   element->insn_address = CPU_PC_GET (cpu);
 239   element->kinds.mem_df_write.address = address;
 240   element->kinds.mem_df_write.value   = value;
 241 }
 242
 243 void sim_queue_mem_xi_write (SIM_CPU *cpu, SI address, SI *value)
 244 {
 245   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 246   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 247   element->kind = CGEN_MEM_XI_WRITE;
 248   element->insn_address = CPU_PC_GET (cpu);
 249   element->kinds.mem_xi_write.address = address;
 250   element->kinds.mem_xi_write.value[0] = value[0];
 251   element->kinds.mem_xi_write.value[1] = value[1];
 252   element->kinds.mem_xi_write.value[2] = value[2];
 253   element->kinds.mem_xi_write.value[3] = value[3];
 254 }
 255
 256 void sim_queue_fn_mem_qi_write (
 257   SIM_CPU *cpu,
 258   void (*write_function)(SIM_CPU *cpu, IADDR, SI, QI),
 259   SI address,
 260   QI value
 261 )
 262 {
 263   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 264   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 265   element->kind = CGEN_FN_MEM_QI_WRITE;
 266   element->insn_address = CPU_PC_GET (cpu);
 267   element->kinds.fn_mem_qi_write.function = write_function;
 268   element->kinds.fn_mem_qi_write.address = address;
 269   element->kinds.fn_mem_qi_write.value   = value;
 270 }
 271
 272 void sim_queue_fn_mem_hi_write (
 273   SIM_CPU *cpu,
 274   void (*write_function)(SIM_CPU *cpu, IADDR, SI, HI),
 275   SI address,
 276   HI value
 277 )
 278 {
 279   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 280   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 281   element->kind = CGEN_FN_MEM_HI_WRITE;
 282   element->insn_address = CPU_PC_GET (cpu);
 283   element->kinds.fn_mem_hi_write.function = write_function;
 284   element->kinds.fn_mem_hi_write.address = address;
 285   element->kinds.fn_mem_hi_write.value   = value;
 286 }
 287
 288 void sim_queue_fn_mem_si_write (
 289   SIM_CPU *cpu,
 290   void (*write_function)(SIM_CPU *cpu, IADDR, SI, SI),
 291   SI address,
 292   SI value
 293 )
 294 {
 295   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 296   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 297   element->kind = CGEN_FN_MEM_SI_WRITE;
 298   element->insn_address = CPU_PC_GET (cpu);
 299   element->kinds.fn_mem_si_write.function = write_function;
 300   element->kinds.fn_mem_si_write.address = address;
 301   element->kinds.fn_mem_si_write.value   = value;
 302 }
 303
 304 void sim_queue_fn_mem_di_write (
 305   SIM_CPU *cpu,
 306   void (*write_function)(SIM_CPU *cpu, IADDR, SI, DI),
 307   SI address,
 308   DI value
 309 )
 310 {
 311   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 312   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 313   element->kind = CGEN_FN_MEM_DI_WRITE;
 314   element->insn_address = CPU_PC_GET (cpu);
 315   element->kinds.fn_mem_di_write.function = write_function;
 316   element->kinds.fn_mem_di_write.address = address;
 317   element->kinds.fn_mem_di_write.value   = value;
 318 }
 319
 320 void sim_queue_fn_mem_df_write (
 321   SIM_CPU *cpu,
 322   void (*write_function)(SIM_CPU *cpu, IADDR, SI, DF),
 323   SI address,
 324   DF value
 325 )
 326 {
 327   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 328   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 329   element->kind = CGEN_FN_MEM_DF_WRITE;
 330   element->insn_address = CPU_PC_GET (cpu);
 331   element->kinds.fn_mem_df_write.function = write_function;
 332   element->kinds.fn_mem_df_write.address = address;
 333   element->kinds.fn_mem_df_write.value   = value;
 334 }
 335
 336 void sim_queue_fn_mem_xi_write (
 337   SIM_CPU *cpu,
 338   void (*write_function)(SIM_CPU *cpu, IADDR, SI, SI *),
 339   SI address,
 340   SI *value
 341 )
 342 {
 343   CGEN_WRITE_QUEUE *q = CPU_WRITE_QUEUE (cpu);
 344   CGEN_WRITE_QUEUE_ELEMENT *element = CGEN_WRITE_QUEUE_NEXT (q);
 345   element->kind = CGEN_FN_MEM_XI_WRITE;
 346   element->insn_address = CPU_PC_GET (cpu);
 347   element->kinds.fn_mem_xi_write.function = write_function;
 348   element->kinds.fn_mem_xi_write.address = address;
 349   element->kinds.fn_mem_xi_write.value[0] = value[0];
 350   element->kinds.fn_mem_xi_write.value[1] = value[1];
 351   element->kinds.fn_mem_xi_write.value[2] = value[2];
 352   element->kinds.fn_mem_xi_write.value[3] = value[3];
 353 }
 354
 355 /* Execute a write stored on the write queue.  */
 356 void
 357 cgen_write_queue_element_execute (SIM_CPU *cpu, CGEN_WRITE_QUEUE_ELEMENT *item)
 358 {
 359   IADDR pc;
 360   switch (CGEN_WRITE_QUEUE_ELEMENT_KIND (item))
 361     {
 362     case CGEN_BI_WRITE:
 363       *item->kinds.bi_write.target = item->kinds.bi_write.value;
 364       break;
 365     case CGEN_QI_WRITE:
 366       *item->kinds.qi_write.target = item->kinds.qi_write.value;
 367       break;
 368     case CGEN_SI_WRITE:
 369       *item->kinds.si_write.target = item->kinds.si_write.value;
 370       break;
 371     case CGEN_SF_WRITE:
 372       *item->kinds.sf_write.target = item->kinds.sf_write.value;
 373       break;
 374     case CGEN_PC_WRITE:
 375       CPU_PC_SET (cpu, item->kinds.pc_write.value);
 376       break;
 377     case CGEN_FN_HI_WRITE:
 378       item->kinds.fn_hi_write.function (cpu,
 379                                         item->kinds.fn_hi_write.regno,
 380                                         item->kinds.fn_hi_write.value);
 381       break;
 382     case CGEN_FN_SI_WRITE:
 383       item->kinds.fn_si_write.function (cpu,
 384                                         item->kinds.fn_si_write.regno,
 385                                         item->kinds.fn_si_write.value);
 386       break;
 387     case CGEN_FN_SF_WRITE:
 388       item->kinds.fn_sf_write.function (cpu,
 389                                         item->kinds.fn_sf_write.regno,
 390                                         item->kinds.fn_sf_write.value);
 391       break;
 392     case CGEN_FN_DI_WRITE:
 393       item->kinds.fn_di_write.function (cpu,
 394                                         item->kinds.fn_di_write.regno,
 395                                         item->kinds.fn_di_write.value);
 396       break;
 397     case CGEN_FN_DF_WRITE:
 398       item->kinds.fn_df_write.function (cpu,
 399                                         item->kinds.fn_df_write.regno,
 400                                         item->kinds.fn_df_write.value);
 401       break;
 402     case CGEN_FN_XI_WRITE:
 403       item->kinds.fn_xi_write.function (cpu,
 404                                         item->kinds.fn_xi_write.regno,
 405                                         item->kinds.fn_xi_write.value);
 406       break;
 407     case CGEN_FN_PC_WRITE:
 408       item->kinds.fn_pc_write.function (cpu, item->kinds.fn_pc_write.value);
 409       break;
 410     case CGEN_MEM_QI_WRITE:
 411       pc = item->insn_address;
 412       SETMEMQI (cpu, pc, item->kinds.mem_qi_write.address,
 413                 item->kinds.mem_qi_write.value);
 414       break;
 415     case CGEN_MEM_HI_WRITE:
 416       pc = item->insn_address;
 417       SETMEMHI (cpu, pc, item->kinds.mem_hi_write.address,
 418                 item->kinds.mem_hi_write.value);
 419       break;
 420     case CGEN_MEM_SI_WRITE:
 421       pc = item->insn_address;
 422       SETMEMSI (cpu, pc, item->kinds.mem_si_write.address,
 423                 item->kinds.mem_si_write.value);
 424       break;
 425     case CGEN_MEM_DI_WRITE:
 426       pc = item->insn_address;
 427       SETMEMDI (cpu, pc, item->kinds.mem_di_write.address,
 428                 item->kinds.mem_di_write.value);
 429       break;
 430     case CGEN_MEM_DF_WRITE:
 431       pc = item->insn_address;
 432       SETMEMDF (cpu, pc, item->kinds.mem_df_write.address,
 433                 item->kinds.mem_df_write.value);
 434       break;
 435     case CGEN_MEM_XI_WRITE:
 436       pc = item->insn_address;
 437       SETMEMSI (cpu, pc, item->kinds.mem_xi_write.address,
 438                 item->kinds.mem_xi_write.value[0]);
 439       SETMEMSI (cpu, pc, item->kinds.mem_xi_write.address + 4,
 440                 item->kinds.mem_xi_write.value[1]);
 441       SETMEMSI (cpu, pc, item->kinds.mem_xi_write.address + 8,
 442                 item->kinds.mem_xi_write.value[2]);
 443       SETMEMSI (cpu, pc, item->kinds.mem_xi_write.address + 12,
 444                 item->kinds.mem_xi_write.value[3]);
 445       break;
 446     case CGEN_FN_MEM_QI_WRITE:
 447       pc = item->insn_address;
 448       item->kinds.fn_mem_qi_write.function (cpu, pc,
 449                                             item->kinds.fn_mem_qi_write.address,
 450                                             item->kinds.fn_mem_qi_write.value);
 451       break;
 452     case CGEN_FN_MEM_HI_WRITE:
 453       pc = item->insn_address;
 454       item->kinds.fn_mem_hi_write.function (cpu, pc,
 455                                             item->kinds.fn_mem_hi_write.address,
 456                                             item->kinds.fn_mem_hi_write.value);
 457       break;
 458     case CGEN_FN_MEM_SI_WRITE:
 459       pc = item->insn_address;
 460       item->kinds.fn_mem_si_write.function (cpu, pc,
 461                                             item->kinds.fn_mem_si_write.address,
 462                                             item->kinds.fn_mem_si_write.value);
 463       break;
 464     case CGEN_FN_MEM_DI_WRITE:
 465       pc = item->insn_address;
 466       item->kinds.fn_mem_di_write.function (cpu, pc,
 467                                             item->kinds.fn_mem_di_write.address,
 468                                             item->kinds.fn_mem_di_write.value);
 469       break;
 470     case CGEN_FN_MEM_DF_WRITE:
 471       pc = item->insn_address;
 472       item->kinds.fn_mem_df_write.function (cpu, pc,
 473                                             item->kinds.fn_mem_df_write.address,
 474                                             item->kinds.fn_mem_df_write.value);
 475       break;
 476     case CGEN_FN_MEM_XI_WRITE:
 477       pc = item->insn_address;
 478       item->kinds.fn_mem_xi_write.function (cpu, pc,
 479                                             item->kinds.fn_mem_xi_write.address,
 480                                             item->kinds.fn_mem_xi_write.value);
 481       break;
 482     default:
 483       abort ();
 484       break; /* FIXME: for now....print message later.  */
 485     }
 486 }
 487
 488 /* Utilities for the write queue.  */
 489 CGEN_WRITE_QUEUE_ELEMENT *
 490 cgen_write_queue_overflow (CGEN_WRITE_QUEUE *q)
 491 {
 492   abort (); /* FIXME: for now....print message later.  */
 493   return 0;
 494 }