target-cris/op.c

   1 /*
   2  *  CRIS emulation micro-operations for qemu.
   3  *
   4  *  Copyright (c) 2007 Edgar E. Iglesias, Axis Communications AB.
   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, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 #include "exec.h"
  21 #include "host-utils.h"
  22
  23 #define REGNAME r0
  24 #define REG (env->regs[0])
  25 #include "op_template.h"
  26
  27 #define REGNAME r1
  28 #define REG (env->regs[1])
  29 #include "op_template.h"
  30
  31 #define REGNAME r2
  32 #define REG (env->regs[2])
  33 #include "op_template.h"
  34
  35 #define REGNAME r3
  36 #define REG (env->regs[3])
  37 #include "op_template.h"
  38
  39 #define REGNAME r4
  40 #define REG (env->regs[4])
  41 #include "op_template.h"
  42
  43 #define REGNAME r5
  44 #define REG (env->regs[5])
  45 #include "op_template.h"
  46
  47 #define REGNAME r6
  48 #define REG (env->regs[6])
  49 #include "op_template.h"
  50
  51 #define REGNAME r7
  52 #define REG (env->regs[7])
  53 #include "op_template.h"
  54
  55 #define REGNAME r8
  56 #define REG (env->regs[8])
  57 #include "op_template.h"
  58
  59 #define REGNAME r9
  60 #define REG (env->regs[9])
  61 #include "op_template.h"
  62
  63 #define REGNAME r10
  64 #define REG (env->regs[10])
  65 #include "op_template.h"
  66
  67 #define REGNAME r11
  68 #define REG (env->regs[11])
  69 #include "op_template.h"
  70
  71 #define REGNAME r12
  72 #define REG (env->regs[12])
  73 #include "op_template.h"
  74
  75 #define REGNAME r13
  76 #define REG (env->regs[13])
  77 #include "op_template.h"
  78
  79 #define REGNAME r14
  80 #define REG (env->regs[14])
  81 #include "op_template.h"
  82
  83 #define REGNAME r15
  84 #define REG (env->regs[15])
  85 #include "op_template.h"
  86
  87
  88 #define REGNAME p0
  89 #define REG (env->pregs[0])
  90 #include "op_template.h"
  91
  92 #define REGNAME p1
  93 #define REG (env->pregs[1])
  94 #include "op_template.h"
  95
  96 #define REGNAME p2
  97 #define REG (env->pregs[2])
  98 #include "op_template.h"
  99
 100 #define REGNAME p3
 101 #define REG (env->pregs[3])
 102 #include "op_template.h"
 103
 104 #define REGNAME p4
 105 #define REG (env->pregs[4])
 106 #include "op_template.h"
 107
 108 #define REGNAME p5
 109 #define REG (env->pregs[5])
 110 #include "op_template.h"
 111
 112 #define REGNAME p6
 113 #define REG (env->pregs[6])
 114 #include "op_template.h"
 115
 116 #define REGNAME p7
 117 #define REG (env->pregs[7])
 118 #include "op_template.h"
 119
 120 #define REGNAME p8
 121 #define REG (env->pregs[8])
 122 #include "op_template.h"
 123
 124 #define REGNAME p9
 125 #define REG (env->pregs[9])
 126 #include "op_template.h"
 127
 128 #define REGNAME p10
 129 #define REG (env->pregs[10])
 130 #include "op_template.h"
 131
 132 #define REGNAME p11
 133 #define REG (env->pregs[11])
 134 #include "op_template.h"
 135
 136 #define REGNAME p12
 137 #define REG (env->pregs[12])
 138 #include "op_template.h"
 139
 140 #define REGNAME p13
 141 #define REG (env->pregs[13])
 142 #include "op_template.h"
 143
 144 #define REGNAME p14
 145 #define REG (env->pregs[14])
 146 #include "op_template.h"
 147
 148 #define REGNAME p15
 149 #define REG (env->pregs[15])
 150 #include "op_template.h"
 151
 152 /* Microcode.  */
 153
 154 void OPPROTO op_break_im(void)
 155 {
 156         env->trapnr = PARAM1;
 157         env->exception_index = EXCP_BREAK;
 158         cpu_loop_exit();
 159 }
 160
 161 void OPPROTO op_debug(void)
 162 {
 163         env->exception_index = EXCP_DEBUG;
 164         cpu_loop_exit();
 165 }
 166
 167 void OPPROTO op_exec_insn(void)
 168 {
 169         env->stats.exec_insns++;
 170         RETURN();
 171 }
 172 void OPPROTO op_exec_load(void)
 173 {
 174         env->stats.exec_loads++;
 175         RETURN();
 176 }
 177 void OPPROTO op_exec_store(void)
 178 {
 179         env->stats.exec_stores++;
 180         RETURN();
 181 }
 182
 183 void OPPROTO op_ccs_lshift (void)
 184 {
 185         uint32_t ccs;
 186
 187         /* Apply the ccs shift.  */
 188         ccs = env->pregs[PR_CCS];
 189         ccs = (ccs & 0xc0000000) | ((ccs << 12) >> 2);
 190         env->pregs[PR_CCS] = ccs;
 191         RETURN();
 192 }
 193 void OPPROTO op_ccs_rshift (void)
 194 {
 195         uint32_t ccs;
 196
 197         /* Apply the ccs shift.  */
 198         ccs = env->pregs[PR_CCS];
 199         ccs = (ccs & 0xc0000000) | (ccs >> 10);
 200         env->pregs[PR_CCS] = ccs;
 201         RETURN();
 202 }
 203
 204 void OPPROTO op_setf (void)
 205 {
 206         env->pregs[PR_CCS] |= PARAM1;
 207         RETURN();
 208 }
 209
 210 void OPPROTO op_clrf (void)
 211 {
 212         env->pregs[PR_CCS] &= ~PARAM1;
 213         RETURN();
 214 }
 215
 216 void OPPROTO op_movl_debug1_T0 (void)
 217 {
 218         env->debug1 = T0;
 219         RETURN();
 220 }
 221
 222 void OPPROTO op_movl_debug2_T0 (void)
 223 {
 224         env->debug2 = T0;
 225         RETURN();
 226 }
 227
 228 void OPPROTO op_movl_debug3_T0 (void)
 229 {
 230         env->debug3 = T0;
 231         RETURN();
 232 }
 233 void OPPROTO op_movl_debug1_T1 (void)
 234 {
 235         env->debug1 = T1;
 236         RETURN();
 237 }
 238
 239 void OPPROTO op_movl_debug2_T1 (void)
 240 {
 241         env->debug2 = T1;
 242         RETURN();
 243 }
 244
 245 void OPPROTO op_movl_debug3_T1 (void)
 246 {
 247         env->debug3 = T1;
 248         RETURN();
 249 }
 250 void OPPROTO op_movl_debug3_im (void)
 251 {
 252         env->debug3 = PARAM1;
 253         RETURN();
 254 }
 255 void OPPROTO op_movl_T0_flags (void)
 256 {
 257         T0 = env->pregs[PR_CCS];
 258         RETURN();
 259 }
 260 void OPPROTO op_movl_flags_T0 (void)
 261 {
 262         env->pregs[PR_CCS] = T0;
 263         RETURN();
 264 }
 265
 266 void OPPROTO op_movl_sreg_T0 (void)
 267 {
 268         env->sregs[env->pregs[PR_SRS]][PARAM1] = T0;
 269         RETURN();
 270 }
 271
 272 void OPPROTO op_movl_tlb_lo_T0 (void)
 273 {
 274         int srs;
 275         srs = env->pregs[PR_SRS];
 276         if (srs == 1 || srs == 2)
 277         {
 278                 int set;
 279                 int idx;
 280                 uint32_t lo, hi;
 281
 282                 idx = set = env->sregs[SFR_RW_MM_TLB_SEL];
 283                 set >>= 4;
 284                 set &= 3;
 285
 286                 idx &= 31;
 287                 /* We've just made a write to tlb_lo.  */
 288                 lo = env->sregs[SFR_RW_MM_TLB_LO];
 289                 hi = env->sregs[SFR_RW_MM_TLB_HI];
 290                 env->tlbsets[srs - 1][set][idx].lo = lo;
 291                 env->tlbsets[srs - 1][set][idx].hi = hi;
 292         }
 293
 294         RETURN();
 295 }
 296
 297 void OPPROTO op_movl_T0_sreg (void)
 298 {
 299         T0 = env->sregs[env->pregs[PR_SRS]][PARAM1];
 300         RETURN();
 301 }
 302
 303 void OPPROTO op_update_cc (void)
 304 {
 305         env->cc_op = PARAM1;
 306         env->cc_dest = PARAM2;
 307         env->cc_src = PARAM3;
 308         RETURN();
 309 }
 310
 311 void OPPROTO op_update_cc_op (void)
 312 {
 313         env->cc_op = PARAM1;
 314         RETURN();
 315 }
 316
 317 void OPPROTO op_update_cc_mask (void)
 318 {
 319         env->cc_mask = PARAM1;
 320         RETURN();
 321 }
 322
 323 void OPPROTO op_update_cc_dest_T0 (void)
 324 {
 325         env->cc_dest = T0;
 326         RETURN();
 327 }
 328
 329 void OPPROTO op_update_cc_result_T0 (void)
 330 {
 331         env->cc_result = T0;
 332         RETURN();
 333 }
 334
 335 void OPPROTO op_update_cc_size_im (void)
 336 {
 337         env->cc_size = PARAM1;
 338         RETURN();
 339 }
 340
 341 void OPPROTO op_update_cc_src_T1 (void)
 342 {
 343         env->cc_src = T1;
 344         RETURN();
 345 }
 346 void OPPROTO op_update_cc_x (void)
 347 {
 348         env->cc_x_live = PARAM1;
 349         env->cc_x = PARAM2;
 350         RETURN();
 351 }
 352
 353 /* FIXME: is this allowed?  */
 354 extern inline void evaluate_flags_writeback(uint32_t flags)
 355 {
 356         int x;
 357
 358         /* Extended arithmetics, leave the z flag alone.  */
 359         env->debug3 = env->pregs[PR_CCS];
 360
 361         if (env->cc_x_live)
 362                 x = env->cc_x;
 363         else
 364                 x = env->pregs[PR_CCS] & X_FLAG;
 365
 366         if ((x || env->cc_op == CC_OP_ADDC)
 367             && flags & Z_FLAG)
 368                 env->cc_mask &= ~Z_FLAG;
 369
 370         /* all insn clear the x-flag except setf or clrf.  */
 371         env->pregs[PR_CCS] &= ~(env->cc_mask | X_FLAG);
 372         flags &= env->cc_mask;
 373         env->pregs[PR_CCS] |= flags;
 374         RETURN();
 375 }
 376
 377 void OPPROTO op_evaluate_flags_muls(void)
 378 {
 379         uint32_t src;
 380         uint32_t dst;
 381         uint32_t res;
 382         uint32_t flags = 0;
 383         /* were gonna have to redo the muls.  */
 384         int64_t tmp, t0 ,t1;
 385         int32_t mof;
 386         int dneg;
 387
 388         src = env->cc_src;
 389         dst = env->cc_dest;
 390         res = env->cc_result;
 391
 392
 393         /* cast into signed values to make GCC sign extend.  */
 394         t0 = (int32_t)src;
 395         t1 = (int32_t)dst;
 396         dneg = ((int32_t)res) < 0;
 397
 398         tmp = t0 * t1;
 399         mof = tmp >> 32;
 400         if (tmp == 0)
 401                 flags |= Z_FLAG;
 402         else if (tmp < 0)
 403                 flags |= N_FLAG;
 404         if ((dneg && mof != -1)
 405             || (!dneg && mof != 0))
 406                 flags |= V_FLAG;
 407         evaluate_flags_writeback(flags);
 408         RETURN();
 409 }
 410
 411 void OPPROTO op_evaluate_flags_mulu(void)
 412 {
 413         uint32_t src;
 414         uint32_t dst;
 415         uint32_t res;
 416         uint32_t flags = 0;
 417         /* were gonna have to redo the muls.  */
 418         uint64_t tmp, t0 ,t1;
 419         uint32_t mof;
 420
 421         src = env->cc_src;
 422         dst = env->cc_dest;
 423         res = env->cc_result;
 424
 425
 426         /* cast into signed values to make GCC sign extend.  */
 427         t0 = src;
 428         t1 = dst;
 429
 430         tmp = t0 * t1;
 431         mof = tmp >> 32;
 432         if (tmp == 0)
 433                 flags |= Z_FLAG;
 434         else if (tmp >> 63)
 435                 flags |= N_FLAG;
 436         if (mof)
 437                 flags |= V_FLAG;
 438
 439         evaluate_flags_writeback(flags);
 440         RETURN();
 441 }
 442
 443 void OPPROTO op_evaluate_flags_mcp(void)
 444 {
 445         uint32_t src;
 446         uint32_t dst;
 447         uint32_t res;
 448         uint32_t flags = 0;
 449
 450         src = env->cc_src;
 451         dst = env->cc_dest;
 452         res = env->cc_result;
 453
 454         if ((res & 0x80000000L) != 0L)
 455         {
 456                 flags |= N_FLAG;
 457                 if (((src & 0x80000000L) == 0L)
 458                     && ((dst & 0x80000000L) == 0L))
 459                 {
 460                         flags |= V_FLAG;
 461                 }
 462                 else if (((src & 0x80000000L) != 0L) &&
 463                          ((dst & 0x80000000L) != 0L))
 464                 {
 465                         flags |= R_FLAG;
 466                 }
 467         }
 468         else
 469         {
 470                 if (res == 0L)
 471                         flags |= Z_FLAG;
 472                 if (((src & 0x80000000L) != 0L)
 473                     && ((dst & 0x80000000L) != 0L))
 474                         flags |= V_FLAG;
 475                 if ((dst & 0x80000000L) != 0L
 476                     || (src & 0x80000000L) != 0L)
 477                         flags |= R_FLAG;
 478         }
 479
 480         evaluate_flags_writeback(flags);
 481         RETURN();
 482 }
 483
 484 void OPPROTO op_evaluate_flags_alu_4(void)
 485 {
 486         uint32_t src;
 487         uint32_t dst;
 488         uint32_t res;
 489         uint32_t flags = 0;
 490
 491         src = env->cc_src;
 492         dst = env->cc_dest;
 493         res = env->cc_result;
 494
 495         if ((res & 0x80000000L) != 0L)
 496         {
 497                 flags |= N_FLAG;
 498                 if (((src & 0x80000000L) == 0L)
 499                     && ((dst & 0x80000000L) == 0L))
 500                 {
 501                         flags |= V_FLAG;
 502                 }
 503                 else if (((src & 0x80000000L) != 0L) &&
 504                          ((dst & 0x80000000L) != 0L))
 505                 {
 506                         flags |= C_FLAG;
 507                 }
 508         }
 509         else
 510         {
 511                 if (res == 0L)
 512                         flags |= Z_FLAG;
 513                 if (((src & 0x80000000L) != 0L)
 514                     && ((dst & 0x80000000L) != 0L))
 515                         flags |= V_FLAG;
 516                 if ((dst & 0x80000000L) != 0L
 517                     || (src & 0x80000000L) != 0L)
 518                         flags |= C_FLAG;
 519         }
 520
 521         if (env->cc_op == CC_OP_SUB
 522             || env->cc_op == CC_OP_CMP) {
 523                 flags ^= C_FLAG;
 524         }
 525         evaluate_flags_writeback(flags);
 526         RETURN();
 527 }
 528
 529 void OPPROTO op_evaluate_flags_move_4 (void)
 530 {
 531         uint32_t src;
 532         uint32_t res;
 533         uint32_t flags = 0;
 534
 535         src = env->cc_src;
 536         res = env->cc_result;
 537
 538         if ((int32_t)res < 0)
 539                 flags |= N_FLAG;
 540         else if (res == 0L)
 541                 flags |= Z_FLAG;
 542
 543         evaluate_flags_writeback(flags);
 544         RETURN();
 545 }
 546 void OPPROTO op_evaluate_flags_move_2 (void)
 547 {
 548         uint32_t src;
 549         uint32_t flags = 0;
 550         uint16_t res;
 551
 552         src = env->cc_src;
 553         res = env->cc_result;
 554
 555         if ((int16_t)res < 0L)
 556                 flags |= N_FLAG;
 557         else if (res == 0)
 558                 flags |= Z_FLAG;
 559
 560         evaluate_flags_writeback(flags);
 561         RETURN();
 562 }
 563
 564 /* TODO: This is expensive. We could split things up and only evaluate part of
 565    CCR on a need to know basis. For now, we simply re-evaluate everything.  */
 566 void OPPROTO op_evaluate_flags (void)
 567 {
 568         uint32_t src;
 569         uint32_t dst;
 570         uint32_t res;
 571         uint32_t flags = 0;
 572
 573         src = env->cc_src;
 574         dst = env->cc_dest;
 575         res = env->cc_result;
 576
 577
 578         /* Now, evaluate the flags. This stuff is based on
 579            Per Zander's CRISv10 simulator.  */
 580         switch (env->cc_size)
 581         {
 582                 case 1:
 583                         if ((res & 0x80L) != 0L)
 584                         {
 585                                 flags |= N_FLAG;
 586                                 if (((src & 0x80L) == 0L)
 587                                     && ((dst & 0x80L) == 0L))
 588                                 {
 589                                         flags |= V_FLAG;
 590                                 }
 591                                 else if (((src & 0x80L) != 0L)
 592                                          && ((dst & 0x80L) != 0L))
 593                                 {
 594                                         flags |= C_FLAG;
 595                                 }
 596                         }
 597                         else
 598                         {
 599                                 if ((res & 0xFFL) == 0L)
 600                                 {
 601                                         flags |= Z_FLAG;
 602                                 }
 603                                 if (((src & 0x80L) != 0L)
 604                                     && ((dst & 0x80L) != 0L))
 605                                 {
 606                                         flags |= V_FLAG;
 607                                 }
 608                                 if ((dst & 0x80L) != 0L
 609                                     || (src & 0x80L) != 0L)
 610                                 {
 611                                         flags |= C_FLAG;
 612                                 }
 613                         }
 614                         break;
 615                 case 2:
 616                         if ((res & 0x8000L) != 0L)
 617                         {
 618                                 flags |= N_FLAG;
 619                                 if (((src & 0x8000L) == 0L)
 620                                     && ((dst & 0x8000L) == 0L))
 621                                 {
 622                                         flags |= V_FLAG;
 623                                 }
 624                                 else if (((src & 0x8000L) != 0L)
 625                                          && ((dst & 0x8000L) != 0L))
 626                                 {
 627                                         flags |= C_FLAG;
 628                                 }
 629                         }
 630                         else
 631                         {
 632                                 if ((res & 0xFFFFL) == 0L)
 633                                 {
 634                                         flags |= Z_FLAG;
 635                                 }
 636                                 if (((src & 0x8000L) != 0L)
 637                                     && ((dst & 0x8000L) != 0L))
 638                                 {
 639                                         flags |= V_FLAG;
 640                                 }
 641                                 if ((dst & 0x8000L) != 0L
 642                                     || (src & 0x8000L) != 0L)
 643                                 {
 644                                         flags |= C_FLAG;
 645                                 }
 646                         }
 647                         break;
 648                 case 4:
 649                         if ((res & 0x80000000L) != 0L)
 650                         {
 651                                 flags |= N_FLAG;
 652                                 if (((src & 0x80000000L) == 0L)
 653                                     && ((dst & 0x80000000L) == 0L))
 654                                 {
 655                                         flags |= V_FLAG;
 656                                 }
 657                                 else if (((src & 0x80000000L) != 0L) &&
 658                                          ((dst & 0x80000000L) != 0L))
 659                                 {
 660                                         flags |= C_FLAG;
 661                                 }
 662                         }
 663                         else
 664                         {
 665                                 if (res == 0L)
 666                                         flags |= Z_FLAG;
 667                                 if (((src & 0x80000000L) != 0L)
 668                                     && ((dst & 0x80000000L) != 0L))
 669                                         flags |= V_FLAG;
 670                                 if ((dst & 0x80000000L) != 0L
 671                                     || (src & 0x80000000L) != 0L)
 672                                         flags |= C_FLAG;
 673                         }
 674                         break;
 675                 default:
 676                         break;
 677         }
 678
 679         if (env->cc_op == CC_OP_SUB
 680             || env->cc_op == CC_OP_CMP) {
 681                 flags ^= C_FLAG;
 682         }
 683         evaluate_flags_writeback(flags);
 684         RETURN();
 685 }
 686
 687 void OPPROTO op_extb_T0_T0 (void)
 688 {
 689         T0 = ((int8_t)T0);
 690         RETURN();
 691 }
 692 void OPPROTO op_extb_T1_T0 (void)
 693 {
 694         T1 = ((int8_t)T0);
 695         RETURN();
 696 }
 697 void OPPROTO op_extb_T1_T1 (void)
 698 {
 699         T1 = ((int8_t)T1);
 700         RETURN();
 701 }
 702 void OPPROTO op_zextb_T0_T0 (void)
 703 {
 704         T0 = ((uint8_t)T0);
 705         RETURN();
 706 }
 707 void OPPROTO op_zextb_T1_T0 (void)
 708 {
 709         T1 = ((uint8_t)T0);
 710         RETURN();
 711 }
 712 void OPPROTO op_zextb_T1_T1 (void)
 713 {
 714         T1 = ((uint8_t)T1);
 715         RETURN();
 716 }
 717 void OPPROTO op_extw_T0_T0 (void)
 718 {
 719         T0 = ((int16_t)T0);
 720         RETURN();
 721 }
 722 void OPPROTO op_extw_T1_T0 (void)
 723 {
 724         T1 = ((int16_t)T0);
 725         RETURN();
 726 }
 727 void OPPROTO op_extw_T1_T1 (void)
 728 {
 729         T1 = ((int16_t)T1);
 730         RETURN();
 731 }
 732
 733 void OPPROTO op_zextw_T0_T0 (void)
 734 {
 735         T0 = ((uint16_t)T0);
 736         RETURN();
 737 }
 738 void OPPROTO op_zextw_T1_T0 (void)
 739 {
 740         T1 = ((uint16_t)T0);
 741         RETURN();
 742 }
 743
 744 void OPPROTO op_zextw_T1_T1 (void)
 745 {
 746         T1 = ((uint16_t)T1);
 747         RETURN();
 748 }
 749
 750 void OPPROTO op_movl_T0_im (void)
 751 {
 752         T0 = PARAM1;
 753         RETURN();
 754 }
 755 void OPPROTO op_movl_T1_im (void)
 756 {
 757         T1 = PARAM1;
 758         RETURN();
 759 }
 760
 761 void OPPROTO op_addl_T0_im (void)
 762 {
 763         T0 += PARAM1;
 764         RETURN();
 765 }
 766
 767 void OPPROTO op_addl_T1_im (void)
 768 {
 769         T1 += PARAM1;
 770         RETURN();
 771
 772 }
 773 void OPPROTO op_subl_T0_im (void)
 774 {
 775         T0 -= PARAM1;
 776         RETURN();
 777 }
 778
 779 void OPPROTO op_addxl_T0_C (void)
 780 {
 781         if (env->pregs[PR_CCS] & X_FLAG)
 782                 T0 += !!(env->pregs[PR_CCS] & C_FLAG);
 783         RETURN();
 784 }
 785 void OPPROTO op_subxl_T0_C (void)
 786 {
 787         if (env->pregs[PR_CCS] & X_FLAG)
 788                 T0 -= !!(env->pregs[PR_CCS] & C_FLAG);
 789         RETURN();
 790 }
 791 void OPPROTO op_addl_T0_C (void)
 792 {
 793         T0 += !!(env->pregs[PR_CCS] & C_FLAG);
 794         RETURN();
 795 }
 796 void OPPROTO op_addl_T0_R (void)
 797 {
 798         T0 += !!(env->pregs[PR_CCS] & R_FLAG);
 799         RETURN();
 800 }
 801
 802 void OPPROTO op_clr_R (void)
 803 {
 804         env->pregs[PR_CCS] &= ~R_FLAG;
 805         RETURN();
 806 }
 807
 808
 809 void OPPROTO op_andl_T0_im (void)
 810 {
 811         T0 &= PARAM1;
 812         RETURN();
 813 }
 814
 815 void OPPROTO op_andl_T1_im (void)
 816 {
 817         T1 &= PARAM1;
 818         RETURN();
 819 }
 820
 821 void OPPROTO op_movl_T0_T1 (void)
 822 {
 823         T0 = T1;
 824         RETURN();
 825 }
 826
 827 void OPPROTO op_swp_T0_T1 (void)
 828 {
 829         T0 ^= T1;
 830         T1 ^= T0;
 831         T0 ^= T1;
 832         RETURN();
 833 }
 834
 835 void OPPROTO op_movl_T1_T0 (void)
 836 {
 837         T1 = T0;
 838         RETURN();
 839 }
 840
 841 void OPPROTO op_movl_pc_T0 (void)
 842 {
 843         env->pc = T0;
 844         RETURN();
 845 }
 846
 847 void OPPROTO op_movl_T0_0 (void)
 848 {
 849         T0 = 0;
 850         RETURN();
 851 }
 852
 853 void OPPROTO op_addl_T0_T1 (void)
 854 {
 855         T0 += T1;
 856         RETURN();
 857 }
 858
 859 void OPPROTO op_subl_T0_T1 (void)
 860 {
 861         T0 -= T1;
 862         RETURN();
 863 }
 864
 865 void OPPROTO op_absl_T1_T1 (void)
 866 {
 867         int32_t st = T1;
 868
 869         T1 = st < 0 ? -st : st;
 870         RETURN();
 871 }
 872
 873 void OPPROTO op_muls_T0_T1 (void)
 874 {
 875         int64_t tmp, t0 ,t1;
 876
 877         /* cast into signed values to make GCC sign extend these babies.  */
 878         t0 = (int32_t)T0;
 879         t1 = (int32_t)T1;
 880
 881         tmp = t0 * t1;
 882         T0 = tmp & 0xffffffff;
 883         env->pregs[PR_MOF] = tmp >> 32;
 884         RETURN();
 885 }
 886
 887 void OPPROTO op_mulu_T0_T1 (void)
 888 {
 889         uint64_t tmp, t0 ,t1;
 890         t0 = T0;
 891         t1 = T1;
 892
 893         tmp = t0 * t1;
 894         T0 = tmp & 0xffffffff;
 895         env->pregs[PR_MOF] = tmp >> 32;
 896         RETURN();
 897 }
 898
 899 void OPPROTO op_dstep_T0_T1 (void)
 900 {
 901         T0 <<= 1;
 902         if (T0 >= T1)
 903                 T0 -= T1;
 904         RETURN();
 905 }
 906
 907 void OPPROTO op_orl_T0_T1 (void)
 908 {
 909         T0 |= T1;
 910         RETURN();
 911 }
 912
 913 void OPPROTO op_andl_T0_T1 (void)
 914 {
 915         T0 &= T1;
 916         RETURN();
 917 }
 918
 919 void OPPROTO op_xorl_T0_T1 (void)
 920 {
 921         T0 ^= T1;
 922         RETURN();
 923 }
 924
 925 void OPPROTO op_lsll_T0_T1 (void)
 926 {
 927         int s = T1;
 928         if (s > 31)
 929                 T0 = 0;
 930         else
 931                 T0 <<= s;
 932         RETURN();
 933 }
 934
 935 void OPPROTO op_lsll_T0_im (void)
 936 {
 937         T0 <<= PARAM1;
 938         RETURN();
 939 }
 940
 941 void OPPROTO op_lsrl_T0_T1 (void)
 942 {
 943         int s = T1;
 944         if (s > 31)
 945                 T0 = 0;
 946         else
 947                 T0 >>= s;
 948         RETURN();
 949 }
 950
 951 /* Rely on GCC emitting an arithmetic shift for signed right shifts.  */
 952 void OPPROTO op_asrl_T0_T1 (void)
 953 {
 954         int s = T1;
 955         if (s > 31)
 956                 T0 = T0 & 0x80000000 ? -1 : 0;
 957         else
 958                 T0 = (int32_t)T0 >> s;
 959         RETURN();
 960 }
 961
 962 void OPPROTO op_btst_T0_T1 (void)
 963 {
 964         /* FIXME: clean this up.  */
 965
 966         /* des ref:
 967            The N flag is set according to the selected bit in the dest reg.
 968            The Z flag is set if the selected bit and all bits to the right are
 969            zero.
 970            The X flag is cleared.
 971            Other flags are left untouched.
 972            The destination reg is not affected.*/
 973         unsigned int fz, sbit, bset, mask, masked_t0;
 974
 975         sbit = T1 & 31;
 976         bset = !!(T0 & (1 << sbit));
 977         mask = sbit == 31 ? -1 : (1 << (sbit + 1)) - 1;
 978         masked_t0 = T0 & mask;
 979         fz = !(masked_t0 | bset);
 980
 981         /* Clear the X, N and Z flags.  */
 982         T0 = env->pregs[PR_CCS] & ~(X_FLAG | N_FLAG | Z_FLAG);
 983         /* Set the N and Z flags accordingly.  */
 984         T0 |= (bset << 3) | (fz << 2);
 985         RETURN();
 986 }
 987
 988 void OPPROTO op_bound_T0_T1 (void)
 989 {
 990         if (T0 > T1)
 991                 T0 = T1;
 992         RETURN();
 993 }
 994
 995 void OPPROTO op_lz_T0_T1 (void)
 996 {
 997         T0 = clz32(T1);
 998         RETURN();
 999 }
1000
1001 void OPPROTO op_negl_T0_T1 (void)
1002 {
1003         T0 = -T1;
1004         RETURN();
1005 }
1006
1007 void OPPROTO op_negl_T1_T1 (void)
1008 {
1009         T1 = -T1;
1010         RETURN();
1011 }
1012
1013 void OPPROTO op_not_T0_T0 (void)
1014 {
1015         T0 = ~(T0);
1016         RETURN();
1017 }
1018 void OPPROTO op_not_T1_T1 (void)
1019 {
1020         T1 = ~(T1);
1021         RETURN();
1022 }
1023
1024 void OPPROTO op_swapw_T0_T0 (void)
1025 {
1026         T0 = (T0 << 16) | ((T0 >> 16));
1027         RETURN();
1028 }
1029
1030 void OPPROTO op_swapb_T0_T0 (void)
1031 {
1032         T0 = ((T0 << 8) & 0xff00ff00) | ((T0 >> 8) & 0x00ff00ff);
1033         RETURN();
1034 }
1035
1036 void OPPROTO op_swapr_T0_T0 (void)
1037 {
1038         T0 = (((T0 << 7) & 0x80808080) |
1039               ((T0 << 5) & 0x40404040) |
1040               ((T0 << 3) & 0x20202020) |
1041               ((T0 << 1) & 0x10101010) |
1042               ((T0 >> 1) & 0x08080808) |
1043               ((T0 >> 3) & 0x04040404) |
1044               ((T0 >> 5) & 0x02020202) |
1045               ((T0 >> 7) & 0x01010101));
1046         RETURN();
1047 }
1048
1049 void OPPROTO op_tst_cc_eq (void) {
1050         uint32_t flags = env->pregs[PR_CCS];
1051         int z_set;
1052
1053         z_set = !!(flags & Z_FLAG);
1054         T0 = z_set;
1055         RETURN();
1056 }
1057
1058 void OPPROTO op_tst_cc_eq_fast (void) {
1059         T0 = !(env->cc_result);
1060         RETURN();
1061 }
1062
1063 void OPPROTO op_tst_cc_ne (void) {
1064         uint32_t flags = env->pregs[PR_CCS];
1065         int z_set;
1066
1067         z_set = !!(flags & Z_FLAG);
1068         T0 = !z_set;
1069         RETURN();
1070 }
1071 void OPPROTO op_tst_cc_ne_fast (void) {
1072         T0 = !!(env->cc_result);
1073         RETURN();
1074 }
1075
1076 void OPPROTO op_tst_cc_cc (void) {
1077         uint32_t flags = env->pregs[PR_CCS];
1078         int c_set;
1079
1080         c_set = !!(flags & C_FLAG);
1081         T0 = !c_set;
1082         RETURN();
1083 }
1084 void OPPROTO op_tst_cc_cs (void) {
1085         uint32_t flags = env->pregs[PR_CCS];
1086         int c_set;
1087
1088         c_set = !!(flags & C_FLAG);
1089         T0 = c_set;
1090         RETURN();
1091 }
1092
1093 void OPPROTO op_tst_cc_vc (void) {
1094         uint32_t flags = env->pregs[PR_CCS];
1095         int v_set;
1096
1097         v_set = !!(flags & V_FLAG);
1098         T0 = !v_set;
1099         RETURN();
1100 }
1101 void OPPROTO op_tst_cc_vs (void) {
1102         uint32_t flags = env->pregs[PR_CCS];
1103         int v_set;
1104
1105         v_set = !!(flags & V_FLAG);
1106         T0 = v_set;
1107         RETURN();
1108 }
1109 void OPPROTO op_tst_cc_pl (void) {
1110         uint32_t flags = env->pregs[PR_CCS];
1111         int n_set;
1112
1113         n_set = !!(flags & N_FLAG);
1114         T0 = !n_set;
1115         RETURN();
1116 }
1117 void OPPROTO op_tst_cc_pl_fast (void) {
1118         T0 = ((int32_t)env->cc_result) >= 0;
1119         RETURN();
1120 }
1121
1122 void OPPROTO op_tst_cc_mi (void) {
1123         uint32_t flags = env->pregs[PR_CCS];
1124         int n_set;
1125
1126         n_set = !!(flags & N_FLAG);
1127         T0 = n_set;
1128         RETURN();
1129 }
1130 void OPPROTO op_tst_cc_mi_fast (void) {
1131         T0 = ((int32_t)env->cc_result) < 0;
1132         RETURN();
1133 }
1134
1135 void OPPROTO op_tst_cc_ls (void) {
1136         uint32_t flags = env->pregs[PR_CCS];
1137         int c_set;
1138         int z_set;
1139
1140         c_set = !!(flags & C_FLAG);
1141         z_set = !!(flags & Z_FLAG);
1142         T0 = c_set || z_set;
1143         RETURN();
1144 }
1145 void OPPROTO op_tst_cc_hi (void) {
1146         uint32_t flags = env->pregs[PR_CCS];
1147         int z_set;
1148         int c_set;
1149
1150         z_set = !!(flags & Z_FLAG);
1151         c_set = !!(flags & C_FLAG);
1152         T0 = !c_set && !z_set;
1153         RETURN();
1154
1155 }
1156
1157 void OPPROTO op_tst_cc_ge (void) {
1158         uint32_t flags = env->pregs[PR_CCS];
1159         int n_set;
1160         int v_set;
1161
1162         n_set = !!(flags & N_FLAG);
1163         v_set = !!(flags & V_FLAG);
1164         T0 = (n_set && v_set) || (!n_set && !v_set);
1165         RETURN();
1166 }
1167
1168 void OPPROTO op_tst_cc_ge_fast (void) {
1169         T0 = ((int32_t)env->cc_src < (int32_t)env->cc_dest);
1170         RETURN();
1171 }
1172
1173 void OPPROTO op_tst_cc_lt (void) {
1174         uint32_t flags = env->pregs[PR_CCS];
1175         int n_set;
1176         int v_set;
1177
1178         n_set = !!(flags & N_FLAG);
1179         v_set = !!(flags & V_FLAG);
1180         T0 = (n_set && !v_set) || (!n_set && v_set);
1181         RETURN();
1182 }
1183
1184 void OPPROTO op_tst_cc_gt (void) {
1185         uint32_t flags = env->pregs[PR_CCS];
1186         int n_set;
1187         int v_set;
1188         int z_set;
1189
1190         n_set = !!(flags & N_FLAG);
1191         v_set = !!(flags & V_FLAG);
1192         z_set = !!(flags & Z_FLAG);
1193         T0 = (n_set && v_set && !z_set)
1194                 || (!n_set && !v_set && !z_set);
1195         RETURN();
1196 }
1197
1198 void OPPROTO op_tst_cc_le (void) {
1199         uint32_t flags = env->pregs[PR_CCS];
1200         int n_set;
1201         int v_set;
1202         int z_set;
1203
1204         n_set = !!(flags & N_FLAG);
1205         v_set = !!(flags & V_FLAG);
1206         z_set = !!(flags & Z_FLAG);
1207         T0 = z_set || (n_set && !v_set) || (!n_set && v_set);
1208         RETURN();
1209 }
1210
1211 void OPPROTO op_tst_cc_p (void) {
1212         uint32_t flags = env->pregs[PR_CCS];
1213         int p_set;
1214
1215         p_set = !!(flags & P_FLAG);
1216         T0 = p_set;
1217         RETURN();
1218 }
1219
1220 /* Evaluate the if the branch should be taken or not. Needs to be done in
1221    the original sequence. The acutal branch is rescheduled to right after the
1222    delay-slot.  */
1223 void OPPROTO op_evaluate_bcc (void)
1224 {
1225         env->btaken = T0;
1226         RETURN();
1227 }
1228
1229 /* this one is used on every alu op, optimize it!.  */
1230 void OPPROTO op_goto_if_not_x (void)
1231 {
1232         if (env->pregs[PR_CCS] & X_FLAG)
1233                 GOTO_LABEL_PARAM(1);
1234         RETURN();
1235 }
1236
1237 void OPPROTO op_cc_jmp (void)
1238 {
1239         if (env->btaken)
1240                 env->pc = PARAM1;
1241         else
1242                 env->pc = PARAM2;
1243         RETURN();
1244 }
1245
1246 void OPPROTO op_cc_ngoto (void)
1247 {
1248         if (!env->btaken)
1249                 GOTO_LABEL_PARAM(1);
1250         RETURN();
1251 }
1252
1253 void OPPROTO op_movl_btarget_T0 (void)
1254 {
1255         env->btarget = T0;
1256         RETURN();
1257 }
1258
1259 void OPPROTO op_jmp1 (void)
1260 {
1261         env->pc = env->btarget;
1262         RETURN();
1263 }
1264
1265 /* Load and store */
1266 #define MEMSUFFIX _raw
1267 #include "op_mem.c"
1268 #undef MEMSUFFIX
1269 #if !defined(CONFIG_USER_ONLY)
1270 #define MEMSUFFIX _user
1271 #include "op_mem.c"
1272 #undef MEMSUFFIX
1273
1274 #define MEMSUFFIX _kernel
1275 #include "op_mem.c"
1276 #undef MEMSUFFIX
1277 #endif