1/* 2 * MIPS emulation for QEMU - nanoMIPS translation routines 3 * 4 * Copyright (c) 2004-2005 Jocelyn Mayer 5 * Copyright (c) 2006 Marius Groeger (FPU operations) 6 * Copyright (c) 2006 Thiemo Seufer (MIPS32R2 support) 7 * Copyright (c) 2009 CodeSourcery (MIPS16 and microMIPS support) 8 * Copyright (c) 2012 Jia Liu & Dongxue Zhang (MIPS ASE DSP support) 9 * 10 * SPDX-License-Identifier: LGPL-2.1-or-later 11 */ 12 13/* MAJOR, P16, and P32 pools opcodes */ 14enum { 15 NM_P_ADDIU = 0x00, 16 NM_ADDIUPC = 0x01, 17 NM_MOVE_BALC = 0x02, 18 NM_P16_MV = 0x04, 19 NM_LW16 = 0x05, 20 NM_BC16 = 0x06, 21 NM_P16_SR = 0x07, 22 23 NM_POOL32A = 0x08, 24 NM_P_BAL = 0x0a, 25 NM_P16_SHIFT = 0x0c, 26 NM_LWSP16 = 0x0d, 27 NM_BALC16 = 0x0e, 28 NM_P16_4X4 = 0x0f, 29 30 NM_P_GP_W = 0x10, 31 NM_P_GP_BH = 0x11, 32 NM_P_J = 0x12, 33 NM_P16C = 0x14, 34 NM_LWGP16 = 0x15, 35 NM_P16_LB = 0x17, 36 37 NM_P48I = 0x18, 38 NM_P16_A1 = 0x1c, 39 NM_LW4X4 = 0x1d, 40 NM_P16_LH = 0x1f, 41 42 NM_P_U12 = 0x20, 43 NM_P_LS_U12 = 0x21, 44 NM_P_BR1 = 0x22, 45 NM_P16_A2 = 0x24, 46 NM_SW16 = 0x25, 47 NM_BEQZC16 = 0x26, 48 49 NM_POOL32F = 0x28, 50 NM_P_LS_S9 = 0x29, 51 NM_P_BR2 = 0x2a, 52 53 NM_P16_ADDU = 0x2c, 54 NM_SWSP16 = 0x2d, 55 NM_BNEZC16 = 0x2e, 56 NM_MOVEP = 0x2f, 57 58 NM_POOL32S = 0x30, 59 NM_P_BRI = 0x32, 60 NM_LI16 = 0x34, 61 NM_SWGP16 = 0x35, 62 NM_P16_BR = 0x36, 63 64 NM_P_LUI = 0x38, 65 NM_ANDI16 = 0x3c, 66 NM_SW4X4 = 0x3d, 67 NM_MOVEPREV = 0x3f, 68}; 69 70/* POOL32A instruction pool */ 71enum { 72 NM_POOL32A0 = 0x00, 73 NM_SPECIAL2 = 0x01, 74 NM_COP2_1 = 0x02, 75 NM_UDI = 0x03, 76 NM_POOL32A5 = 0x05, 77 NM_POOL32A7 = 0x07, 78}; 79 80/* P.GP.W instruction pool */ 81enum { 82 NM_ADDIUGP_W = 0x00, 83 NM_LWGP = 0x02, 84 NM_SWGP = 0x03, 85}; 86 87/* P48I instruction pool */ 88enum { 89 NM_LI48 = 0x00, 90 NM_ADDIU48 = 0x01, 91 NM_ADDIUGP48 = 0x02, 92 NM_ADDIUPC48 = 0x03, 93 NM_LWPC48 = 0x0b, 94 NM_SWPC48 = 0x0f, 95}; 96 97/* P.U12 instruction pool */ 98enum { 99 NM_ORI = 0x00, 100 NM_XORI = 0x01, 101 NM_ANDI = 0x02, 102 NM_P_SR = 0x03, 103 NM_SLTI = 0x04, 104 NM_SLTIU = 0x05, 105 NM_SEQI = 0x06, 106 NM_ADDIUNEG = 0x08, 107 NM_P_SHIFT = 0x0c, 108 NM_P_ROTX = 0x0d, 109 NM_P_INS = 0x0e, 110 NM_P_EXT = 0x0f, 111}; 112 113/* POOL32F instruction pool */ 114enum { 115 NM_POOL32F_0 = 0x00, 116 NM_POOL32F_3 = 0x03, 117 NM_POOL32F_5 = 0x05, 118}; 119 120/* POOL32S instruction pool */ 121enum { 122 NM_POOL32S_0 = 0x00, 123 NM_POOL32S_4 = 0x04, 124}; 125 126/* P.LUI instruction pool */ 127enum { 128 NM_LUI = 0x00, 129 NM_ALUIPC = 0x01, 130}; 131 132/* P.GP.BH instruction pool */ 133enum { 134 NM_LBGP = 0x00, 135 NM_SBGP = 0x01, 136 NM_LBUGP = 0x02, 137 NM_ADDIUGP_B = 0x03, 138 NM_P_GP_LH = 0x04, 139 NM_P_GP_SH = 0x05, 140 NM_P_GP_CP1 = 0x06, 141}; 142 143/* P.LS.U12 instruction pool */ 144enum { 145 NM_LB = 0x00, 146 NM_SB = 0x01, 147 NM_LBU = 0x02, 148 NM_P_PREFU12 = 0x03, 149 NM_LH = 0x04, 150 NM_SH = 0x05, 151 NM_LHU = 0x06, 152 NM_LWU = 0x07, 153 NM_LW = 0x08, 154 NM_SW = 0x09, 155 NM_LWC1 = 0x0a, 156 NM_SWC1 = 0x0b, 157 NM_LDC1 = 0x0e, 158 NM_SDC1 = 0x0f, 159}; 160 161/* P.LS.S9 instruction pool */ 162enum { 163 NM_P_LS_S0 = 0x00, 164 NM_P_LS_S1 = 0x01, 165 NM_P_LS_E0 = 0x02, 166 NM_P_LS_WM = 0x04, 167 NM_P_LS_UAWM = 0x05, 168}; 169 170/* P.BAL instruction pool */ 171enum { 172 NM_BC = 0x00, 173 NM_BALC = 0x01, 174}; 175 176/* P.J instruction pool */ 177enum { 178 NM_JALRC = 0x00, 179 NM_JALRC_HB = 0x01, 180 NM_P_BALRSC = 0x08, 181}; 182 183/* P.BR1 instruction pool */ 184enum { 185 NM_BEQC = 0x00, 186 NM_P_BR3A = 0x01, 187 NM_BGEC = 0x02, 188 NM_BGEUC = 0x03, 189}; 190 191/* P.BR2 instruction pool */ 192enum { 193 NM_BNEC = 0x00, 194 NM_BLTC = 0x02, 195 NM_BLTUC = 0x03, 196}; 197 198/* P.BRI instruction pool */ 199enum { 200 NM_BEQIC = 0x00, 201 NM_BBEQZC = 0x01, 202 NM_BGEIC = 0x02, 203 NM_BGEIUC = 0x03, 204 NM_BNEIC = 0x04, 205 NM_BBNEZC = 0x05, 206 NM_BLTIC = 0x06, 207 NM_BLTIUC = 0x07, 208}; 209 210/* P16.SHIFT instruction pool */ 211enum { 212 NM_SLL16 = 0x00, 213 NM_SRL16 = 0x01, 214}; 215 216/* POOL16C instruction pool */ 217enum { 218 NM_POOL16C_0 = 0x00, 219 NM_LWXS16 = 0x01, 220}; 221 222/* P16.A1 instruction pool */ 223enum { 224 NM_ADDIUR1SP = 0x01, 225}; 226 227/* P16.A2 instruction pool */ 228enum { 229 NM_ADDIUR2 = 0x00, 230 NM_P_ADDIURS5 = 0x01, 231}; 232 233/* P16.ADDU instruction pool */ 234enum { 235 NM_ADDU16 = 0x00, 236 NM_SUBU16 = 0x01, 237}; 238 239/* P16.SR instruction pool */ 240enum { 241 NM_SAVE16 = 0x00, 242 NM_RESTORE_JRC16 = 0x01, 243}; 244 245/* P16.4X4 instruction pool */ 246enum { 247 NM_ADDU4X4 = 0x00, 248 NM_MUL4X4 = 0x01, 249}; 250 251/* P16.LB instruction pool */ 252enum { 253 NM_LB16 = 0x00, 254 NM_SB16 = 0x01, 255 NM_LBU16 = 0x02, 256}; 257 258/* P16.LH instruction pool */ 259enum { 260 NM_LH16 = 0x00, 261 NM_SH16 = 0x01, 262 NM_LHU16 = 0x02, 263}; 264 265/* P.RI instruction pool */ 266enum { 267 NM_SIGRIE = 0x00, 268 NM_P_SYSCALL = 0x01, 269 NM_BREAK = 0x02, 270 NM_SDBBP = 0x03, 271}; 272 273/* POOL32A0 instruction pool */ 274enum { 275 NM_P_TRAP = 0x00, 276 NM_SEB = 0x01, 277 NM_SLLV = 0x02, 278 NM_MUL = 0x03, 279 NM_MFC0 = 0x06, 280 NM_MFHC0 = 0x07, 281 NM_SEH = 0x09, 282 NM_SRLV = 0x0a, 283 NM_MUH = 0x0b, 284 NM_MTC0 = 0x0e, 285 NM_MTHC0 = 0x0f, 286 NM_SRAV = 0x12, 287 NM_MULU = 0x13, 288 NM_ROTRV = 0x1a, 289 NM_MUHU = 0x1b, 290 NM_ADD = 0x22, 291 NM_DIV = 0x23, 292 NM_ADDU = 0x2a, 293 NM_MOD = 0x2b, 294 NM_SUB = 0x32, 295 NM_DIVU = 0x33, 296 NM_RDHWR = 0x38, 297 NM_SUBU = 0x3a, 298 NM_MODU = 0x3b, 299 NM_P_CMOVE = 0x42, 300 NM_FORK = 0x45, 301 NM_MFTR = 0x46, 302 NM_MFHTR = 0x47, 303 NM_AND = 0x4a, 304 NM_YIELD = 0x4d, 305 NM_MTTR = 0x4e, 306 NM_MTHTR = 0x4f, 307 NM_OR = 0x52, 308 NM_D_E_MT_VPE = 0x56, 309 NM_NOR = 0x5a, 310 NM_XOR = 0x62, 311 NM_SLT = 0x6a, 312 NM_P_SLTU = 0x72, 313 NM_SOV = 0x7a, 314}; 315 316/* CRC32 instruction pool */ 317enum { 318 NM_CRC32B = 0x00, 319 NM_CRC32H = 0x01, 320 NM_CRC32W = 0x02, 321 NM_CRC32CB = 0x04, 322 NM_CRC32CH = 0x05, 323 NM_CRC32CW = 0x06, 324}; 325 326/* POOL32A5 instruction pool */ 327enum { 328 NM_CMP_EQ_PH = 0x00, 329 NM_CMP_LT_PH = 0x08, 330 NM_CMP_LE_PH = 0x10, 331 NM_CMPGU_EQ_QB = 0x18, 332 NM_CMPGU_LT_QB = 0x20, 333 NM_CMPGU_LE_QB = 0x28, 334 NM_CMPGDU_EQ_QB = 0x30, 335 NM_CMPGDU_LT_QB = 0x38, 336 NM_CMPGDU_LE_QB = 0x40, 337 NM_CMPU_EQ_QB = 0x48, 338 NM_CMPU_LT_QB = 0x50, 339 NM_CMPU_LE_QB = 0x58, 340 NM_ADDQ_S_W = 0x60, 341 NM_SUBQ_S_W = 0x68, 342 NM_ADDSC = 0x70, 343 NM_ADDWC = 0x78, 344 345 NM_ADDQ_S_PH = 0x01, 346 NM_ADDQH_R_PH = 0x09, 347 NM_ADDQH_R_W = 0x11, 348 NM_ADDU_S_QB = 0x19, 349 NM_ADDU_S_PH = 0x21, 350 NM_ADDUH_R_QB = 0x29, 351 NM_SHRAV_R_PH = 0x31, 352 NM_SHRAV_R_QB = 0x39, 353 NM_SUBQ_S_PH = 0x41, 354 NM_SUBQH_R_PH = 0x49, 355 NM_SUBQH_R_W = 0x51, 356 NM_SUBU_S_QB = 0x59, 357 NM_SUBU_S_PH = 0x61, 358 NM_SUBUH_R_QB = 0x69, 359 NM_SHLLV_S_PH = 0x71, 360 NM_PRECR_SRA_R_PH_W = 0x79, 361 362 NM_MULEU_S_PH_QBL = 0x12, 363 NM_MULEU_S_PH_QBR = 0x1a, 364 NM_MULQ_RS_PH = 0x22, 365 NM_MULQ_S_PH = 0x2a, 366 NM_MULQ_RS_W = 0x32, 367 NM_MULQ_S_W = 0x3a, 368 NM_APPEND = 0x42, 369 NM_MODSUB = 0x52, 370 NM_SHRAV_R_W = 0x5a, 371 NM_SHRLV_PH = 0x62, 372 NM_SHRLV_QB = 0x6a, 373 NM_SHLLV_QB = 0x72, 374 NM_SHLLV_S_W = 0x7a, 375 376 NM_SHILO = 0x03, 377 378 NM_MULEQ_S_W_PHL = 0x04, 379 NM_MULEQ_S_W_PHR = 0x0c, 380 381 NM_MUL_S_PH = 0x05, 382 NM_PRECR_QB_PH = 0x0d, 383 NM_PRECRQ_QB_PH = 0x15, 384 NM_PRECRQ_PH_W = 0x1d, 385 NM_PRECRQ_RS_PH_W = 0x25, 386 NM_PRECRQU_S_QB_PH = 0x2d, 387 NM_PACKRL_PH = 0x35, 388 NM_PICK_QB = 0x3d, 389 NM_PICK_PH = 0x45, 390 391 NM_SHRA_R_W = 0x5e, 392 NM_SHRA_R_PH = 0x66, 393 NM_SHLL_S_PH = 0x76, 394 NM_SHLL_S_W = 0x7e, 395 396 NM_REPL_PH = 0x07 397}; 398 399/* POOL32A7 instruction pool */ 400enum { 401 NM_P_LSX = 0x00, 402 NM_LSA = 0x01, 403 NM_EXTW = 0x03, 404 NM_POOL32AXF = 0x07, 405}; 406 407/* P.SR instruction pool */ 408enum { 409 NM_PP_SR = 0x00, 410 NM_P_SR_F = 0x01, 411}; 412 413/* P.SHIFT instruction pool */ 414enum { 415 NM_P_SLL = 0x00, 416 NM_SRL = 0x02, 417 NM_SRA = 0x04, 418 NM_ROTR = 0x06, 419}; 420 421/* P.ROTX instruction pool */ 422enum { 423 NM_ROTX = 0x00, 424}; 425 426/* P.INS instruction pool */ 427enum { 428 NM_INS = 0x00, 429}; 430 431/* P.EXT instruction pool */ 432enum { 433 NM_EXT = 0x00, 434}; 435 436/* POOL32F_0 (fmt) instruction pool */ 437enum { 438 NM_RINT_S = 0x04, 439 NM_RINT_D = 0x44, 440 NM_ADD_S = 0x06, 441 NM_SELEQZ_S = 0x07, 442 NM_SELEQZ_D = 0x47, 443 NM_CLASS_S = 0x0c, 444 NM_CLASS_D = 0x4c, 445 NM_SUB_S = 0x0e, 446 NM_SELNEZ_S = 0x0f, 447 NM_SELNEZ_D = 0x4f, 448 NM_MUL_S = 0x16, 449 NM_SEL_S = 0x17, 450 NM_SEL_D = 0x57, 451 NM_DIV_S = 0x1e, 452 NM_ADD_D = 0x26, 453 NM_SUB_D = 0x2e, 454 NM_MUL_D = 0x36, 455 NM_MADDF_S = 0x37, 456 NM_MADDF_D = 0x77, 457 NM_DIV_D = 0x3e, 458 NM_MSUBF_S = 0x3f, 459 NM_MSUBF_D = 0x7f, 460}; 461 462/* POOL32F_3 instruction pool */ 463enum { 464 NM_MIN_FMT = 0x00, 465 NM_MAX_FMT = 0x01, 466 NM_MINA_FMT = 0x04, 467 NM_MAXA_FMT = 0x05, 468 NM_POOL32FXF = 0x07, 469}; 470 471/* POOL32F_5 instruction pool */ 472enum { 473 NM_CMP_CONDN_S = 0x00, 474 NM_CMP_CONDN_D = 0x02, 475}; 476 477/* P.GP.LH instruction pool */ 478enum { 479 NM_LHGP = 0x00, 480 NM_LHUGP = 0x01, 481}; 482 483/* P.GP.SH instruction pool */ 484enum { 485 NM_SHGP = 0x00, 486}; 487 488/* P.GP.CP1 instruction pool */ 489enum { 490 NM_LWC1GP = 0x00, 491 NM_SWC1GP = 0x01, 492 NM_LDC1GP = 0x02, 493 NM_SDC1GP = 0x03, 494}; 495 496/* P.LS.S0 instruction pool */ 497enum { 498 NM_LBS9 = 0x00, 499 NM_LHS9 = 0x04, 500 NM_LWS9 = 0x08, 501 NM_LDS9 = 0x0c, 502 503 NM_SBS9 = 0x01, 504 NM_SHS9 = 0x05, 505 NM_SWS9 = 0x09, 506 NM_SDS9 = 0x0d, 507 508 NM_LBUS9 = 0x02, 509 NM_LHUS9 = 0x06, 510 NM_LWC1S9 = 0x0a, 511 NM_LDC1S9 = 0x0e, 512 513 NM_P_PREFS9 = 0x03, 514 NM_LWUS9 = 0x07, 515 NM_SWC1S9 = 0x0b, 516 NM_SDC1S9 = 0x0f, 517}; 518 519/* P.LS.S1 instruction pool */ 520enum { 521 NM_ASET_ACLR = 0x02, 522 NM_UALH = 0x04, 523 NM_UASH = 0x05, 524 NM_CACHE = 0x07, 525 NM_P_LL = 0x0a, 526 NM_P_SC = 0x0b, 527}; 528 529/* P.LS.E0 instruction pool */ 530enum { 531 NM_LBE = 0x00, 532 NM_SBE = 0x01, 533 NM_LBUE = 0x02, 534 NM_P_PREFE = 0x03, 535 NM_LHE = 0x04, 536 NM_SHE = 0x05, 537 NM_LHUE = 0x06, 538 NM_CACHEE = 0x07, 539 NM_LWE = 0x08, 540 NM_SWE = 0x09, 541 NM_P_LLE = 0x0a, 542 NM_P_SCE = 0x0b, 543}; 544 545/* P.PREFE instruction pool */ 546enum { 547 NM_SYNCIE = 0x00, 548 NM_PREFE = 0x01, 549}; 550 551/* P.LLE instruction pool */ 552enum { 553 NM_LLE = 0x00, 554 NM_LLWPE = 0x01, 555}; 556 557/* P.SCE instruction pool */ 558enum { 559 NM_SCE = 0x00, 560 NM_SCWPE = 0x01, 561}; 562 563/* P.LS.WM instruction pool */ 564enum { 565 NM_LWM = 0x00, 566 NM_SWM = 0x01, 567}; 568 569/* P.LS.UAWM instruction pool */ 570enum { 571 NM_UALWM = 0x00, 572 NM_UASWM = 0x01, 573}; 574 575/* P.BR3A instruction pool */ 576enum { 577 NM_BC1EQZC = 0x00, 578 NM_BC1NEZC = 0x01, 579 NM_BC2EQZC = 0x02, 580 NM_BC2NEZC = 0x03, 581 NM_BPOSGE32C = 0x04, 582}; 583 584/* P16.RI instruction pool */ 585enum { 586 NM_P16_SYSCALL = 0x01, 587 NM_BREAK16 = 0x02, 588 NM_SDBBP16 = 0x03, 589}; 590 591/* POOL16C_0 instruction pool */ 592enum { 593 NM_POOL16C_00 = 0x00, 594}; 595 596/* P16.JRC instruction pool */ 597enum { 598 NM_JRC = 0x00, 599 NM_JALRC16 = 0x01, 600}; 601 602/* P.SYSCALL instruction pool */ 603enum { 604 NM_SYSCALL = 0x00, 605 NM_HYPCALL = 0x01, 606}; 607 608/* P.TRAP instruction pool */ 609enum { 610 NM_TEQ = 0x00, 611 NM_TNE = 0x01, 612}; 613 614/* P.CMOVE instruction pool */ 615enum { 616 NM_MOVZ = 0x00, 617 NM_MOVN = 0x01, 618}; 619 620/* POOL32Axf instruction pool */ 621enum { 622 NM_POOL32AXF_1 = 0x01, 623 NM_POOL32AXF_2 = 0x02, 624 NM_POOL32AXF_4 = 0x04, 625 NM_POOL32AXF_5 = 0x05, 626 NM_POOL32AXF_7 = 0x07, 627}; 628 629/* POOL32Axf_1 instruction pool */ 630enum { 631 NM_POOL32AXF_1_0 = 0x00, 632 NM_POOL32AXF_1_1 = 0x01, 633 NM_POOL32AXF_1_3 = 0x03, 634 NM_POOL32AXF_1_4 = 0x04, 635 NM_POOL32AXF_1_5 = 0x05, 636 NM_POOL32AXF_1_7 = 0x07, 637}; 638 639/* POOL32Axf_2 instruction pool */ 640enum { 641 NM_POOL32AXF_2_0_7 = 0x00, 642 NM_POOL32AXF_2_8_15 = 0x01, 643 NM_POOL32AXF_2_16_23 = 0x02, 644 NM_POOL32AXF_2_24_31 = 0x03, 645}; 646 647/* POOL32Axf_7 instruction pool */ 648enum { 649 NM_SHRA_R_QB = 0x0, 650 NM_SHRL_PH = 0x1, 651 NM_REPL_QB = 0x2, 652}; 653 654/* POOL32Axf_1_0 instruction pool */ 655enum { 656 NM_MFHI = 0x0, 657 NM_MFLO = 0x1, 658 NM_MTHI = 0x2, 659 NM_MTLO = 0x3, 660}; 661 662/* POOL32Axf_1_1 instruction pool */ 663enum { 664 NM_MTHLIP = 0x0, 665 NM_SHILOV = 0x1, 666}; 667 668/* POOL32Axf_1_3 instruction pool */ 669enum { 670 NM_RDDSP = 0x0, 671 NM_WRDSP = 0x1, 672 NM_EXTP = 0x2, 673 NM_EXTPDP = 0x3, 674}; 675 676/* POOL32Axf_1_4 instruction pool */ 677enum { 678 NM_SHLL_QB = 0x0, 679 NM_SHRL_QB = 0x1, 680}; 681 682/* POOL32Axf_1_5 instruction pool */ 683enum { 684 NM_MAQ_S_W_PHR = 0x0, 685 NM_MAQ_S_W_PHL = 0x1, 686 NM_MAQ_SA_W_PHR = 0x2, 687 NM_MAQ_SA_W_PHL = 0x3, 688}; 689 690/* POOL32Axf_1_7 instruction pool */ 691enum { 692 NM_EXTR_W = 0x0, 693 NM_EXTR_R_W = 0x1, 694 NM_EXTR_RS_W = 0x2, 695 NM_EXTR_S_H = 0x3, 696}; 697 698/* POOL32Axf_2_0_7 instruction pool */ 699enum { 700 NM_DPA_W_PH = 0x0, 701 NM_DPAQ_S_W_PH = 0x1, 702 NM_DPS_W_PH = 0x2, 703 NM_DPSQ_S_W_PH = 0x3, 704 NM_BALIGN = 0x4, 705 NM_MADD = 0x5, 706 NM_MULT = 0x6, 707 NM_EXTRV_W = 0x7, 708}; 709 710/* POOL32Axf_2_8_15 instruction pool */ 711enum { 712 NM_DPAX_W_PH = 0x0, 713 NM_DPAQ_SA_L_W = 0x1, 714 NM_DPSX_W_PH = 0x2, 715 NM_DPSQ_SA_L_W = 0x3, 716 NM_MADDU = 0x5, 717 NM_MULTU = 0x6, 718 NM_EXTRV_R_W = 0x7, 719}; 720 721/* POOL32Axf_2_16_23 instruction pool */ 722enum { 723 NM_DPAU_H_QBL = 0x0, 724 NM_DPAQX_S_W_PH = 0x1, 725 NM_DPSU_H_QBL = 0x2, 726 NM_DPSQX_S_W_PH = 0x3, 727 NM_EXTPV = 0x4, 728 NM_MSUB = 0x5, 729 NM_MULSA_W_PH = 0x6, 730 NM_EXTRV_RS_W = 0x7, 731}; 732 733/* POOL32Axf_2_24_31 instruction pool */ 734enum { 735 NM_DPAU_H_QBR = 0x0, 736 NM_DPAQX_SA_W_PH = 0x1, 737 NM_DPSU_H_QBR = 0x2, 738 NM_DPSQX_SA_W_PH = 0x3, 739 NM_EXTPDPV = 0x4, 740 NM_MSUBU = 0x5, 741 NM_MULSAQ_S_W_PH = 0x6, 742 NM_EXTRV_S_H = 0x7, 743}; 744 745/* POOL32Axf_{4, 5} instruction pool */ 746enum { 747 NM_CLO = 0x25, 748 NM_CLZ = 0x2d, 749 750 NM_TLBP = 0x01, 751 NM_TLBR = 0x09, 752 NM_TLBWI = 0x11, 753 NM_TLBWR = 0x19, 754 NM_TLBINV = 0x03, 755 NM_TLBINVF = 0x0b, 756 NM_DI = 0x23, 757 NM_EI = 0x2b, 758 NM_RDPGPR = 0x70, 759 NM_WRPGPR = 0x78, 760 NM_WAIT = 0x61, 761 NM_DERET = 0x71, 762 NM_ERETX = 0x79, 763 764 /* nanoMIPS DSP instructions */ 765 NM_ABSQ_S_QB = 0x00, 766 NM_ABSQ_S_PH = 0x08, 767 NM_ABSQ_S_W = 0x10, 768 NM_PRECEQ_W_PHL = 0x28, 769 NM_PRECEQ_W_PHR = 0x30, 770 NM_PRECEQU_PH_QBL = 0x38, 771 NM_PRECEQU_PH_QBR = 0x48, 772 NM_PRECEU_PH_QBL = 0x58, 773 NM_PRECEU_PH_QBR = 0x68, 774 NM_PRECEQU_PH_QBLA = 0x39, 775 NM_PRECEQU_PH_QBRA = 0x49, 776 NM_PRECEU_PH_QBLA = 0x59, 777 NM_PRECEU_PH_QBRA = 0x69, 778 NM_REPLV_PH = 0x01, 779 NM_REPLV_QB = 0x09, 780 NM_BITREV = 0x18, 781 NM_INSV = 0x20, 782 NM_RADDU_W_QB = 0x78, 783 784 NM_BITSWAP = 0x05, 785 NM_WSBH = 0x3d, 786}; 787 788/* PP.SR instruction pool */ 789enum { 790 NM_SAVE = 0x00, 791 NM_RESTORE = 0x02, 792 NM_RESTORE_JRC = 0x03, 793}; 794 795/* P.SR.F instruction pool */ 796enum { 797 NM_SAVEF = 0x00, 798 NM_RESTOREF = 0x01, 799}; 800 801/* P16.SYSCALL instruction pool */ 802enum { 803 NM_SYSCALL16 = 0x00, 804 NM_HYPCALL16 = 0x01, 805}; 806 807/* POOL16C_00 instruction pool */ 808enum { 809 NM_NOT16 = 0x00, 810 NM_XOR16 = 0x01, 811 NM_AND16 = 0x02, 812 NM_OR16 = 0x03, 813}; 814 815/* PP.LSX and PP.LSXS instruction pool */ 816enum { 817 NM_LBX = 0x00, 818 NM_LHX = 0x04, 819 NM_LWX = 0x08, 820 NM_LDX = 0x0c, 821 822 NM_SBX = 0x01, 823 NM_SHX = 0x05, 824 NM_SWX = 0x09, 825 NM_SDX = 0x0d, 826 827 NM_LBUX = 0x02, 828 NM_LHUX = 0x06, 829 NM_LWC1X = 0x0a, 830 NM_LDC1X = 0x0e, 831 832 NM_LWUX = 0x07, 833 NM_SWC1X = 0x0b, 834 NM_SDC1X = 0x0f, 835 836 NM_LHXS = 0x04, 837 NM_LWXS = 0x08, 838 NM_LDXS = 0x0c, 839 840 NM_SHXS = 0x05, 841 NM_SWXS = 0x09, 842 NM_SDXS = 0x0d, 843 844 NM_LHUXS = 0x06, 845 NM_LWC1XS = 0x0a, 846 NM_LDC1XS = 0x0e, 847 848 NM_LWUXS = 0x07, 849 NM_SWC1XS = 0x0b, 850 NM_SDC1XS = 0x0f, 851}; 852 853/* ERETx instruction pool */ 854enum { 855 NM_ERET = 0x00, 856 NM_ERETNC = 0x01, 857}; 858 859/* POOL32FxF_{0, 1} insturction pool */ 860enum { 861 NM_CFC1 = 0x40, 862 NM_CTC1 = 0x60, 863 NM_MFC1 = 0x80, 864 NM_MTC1 = 0xa0, 865 NM_MFHC1 = 0xc0, 866 NM_MTHC1 = 0xe0, 867 868 NM_CVT_S_PL = 0x84, 869 NM_CVT_S_PU = 0xa4, 870 871 NM_CVT_L_S = 0x004, 872 NM_CVT_L_D = 0x104, 873 NM_CVT_W_S = 0x024, 874 NM_CVT_W_D = 0x124, 875 876 NM_RSQRT_S = 0x008, 877 NM_RSQRT_D = 0x108, 878 879 NM_SQRT_S = 0x028, 880 NM_SQRT_D = 0x128, 881 882 NM_RECIP_S = 0x048, 883 NM_RECIP_D = 0x148, 884 885 NM_FLOOR_L_S = 0x00c, 886 NM_FLOOR_L_D = 0x10c, 887 888 NM_FLOOR_W_S = 0x02c, 889 NM_FLOOR_W_D = 0x12c, 890 891 NM_CEIL_L_S = 0x04c, 892 NM_CEIL_L_D = 0x14c, 893 NM_CEIL_W_S = 0x06c, 894 NM_CEIL_W_D = 0x16c, 895 NM_TRUNC_L_S = 0x08c, 896 NM_TRUNC_L_D = 0x18c, 897 NM_TRUNC_W_S = 0x0ac, 898 NM_TRUNC_W_D = 0x1ac, 899 NM_ROUND_L_S = 0x0cc, 900 NM_ROUND_L_D = 0x1cc, 901 NM_ROUND_W_S = 0x0ec, 902 NM_ROUND_W_D = 0x1ec, 903 904 NM_MOV_S = 0x01, 905 NM_MOV_D = 0x81, 906 NM_ABS_S = 0x0d, 907 NM_ABS_D = 0x8d, 908 NM_NEG_S = 0x2d, 909 NM_NEG_D = 0xad, 910 NM_CVT_D_S = 0x04d, 911 NM_CVT_D_W = 0x0cd, 912 NM_CVT_D_L = 0x14d, 913 NM_CVT_S_D = 0x06d, 914 NM_CVT_S_W = 0x0ed, 915 NM_CVT_S_L = 0x16d, 916}; 917 918/* P.LL instruction pool */ 919enum { 920 NM_LL = 0x00, 921 NM_LLWP = 0x01, 922}; 923 924/* P.SC instruction pool */ 925enum { 926 NM_SC = 0x00, 927 NM_SCWP = 0x01, 928}; 929 930/* P.DVP instruction pool */ 931enum { 932 NM_DVP = 0x00, 933 NM_EVP = 0x01, 934}; 935 936 937/* 938 * 939 * nanoMIPS decoding engine 940 * 941 */ 942 943 944/* extraction utilities */ 945 946#define NANOMIPS_EXTRACT_RT3(op) ((op >> 7) & 0x7) 947#define NANOMIPS_EXTRACT_RS3(op) ((op >> 4) & 0x7) 948#define NANOMIPS_EXTRACT_RD3(op) ((op >> 1) & 0x7) 949#define NANOMIPS_EXTRACT_RD5(op) ((op >> 5) & 0x1f) 950#define NANOMIPS_EXTRACT_RS5(op) (op & 0x1f) 951 952/* Implement nanoMIPS pseudocode decode_gpr(encoded_gpr, 'gpr3'). */ 953static inline int decode_gpr_gpr3(int r) 954{ 955 static const int map[] = { 16, 17, 18, 19, 4, 5, 6, 7 }; 956 957 return map[r & 0x7]; 958} 959 960/* Implement nanoMIPS pseudocode decode_gpr(encoded_gpr, 'gpr3.src.store'). */ 961static inline int decode_gpr_gpr3_src_store(int r) 962{ 963 static const int map[] = { 0, 17, 18, 19, 4, 5, 6, 7 }; 964 965 return map[r & 0x7]; 966} 967 968/* Implement nanoMIPS pseudocode decode_gpr(encoded_gpr, 'gpr4'). */ 969static inline int decode_gpr_gpr4(int r) 970{ 971 static const int map[] = { 8, 9, 10, 11, 4, 5, 6, 7, 972 16, 17, 18, 19, 20, 21, 22, 23 }; 973 974 return map[r & 0xf]; 975} 976 977/* Implement nanoMIPS pseudocode decode_gpr(encoded_gpr, 'gpr4.zero'). */ 978static inline int decode_gpr_gpr4_zero(int r) 979{ 980 static const int map[] = { 8, 9, 10, 0, 4, 5, 6, 7, 981 16, 17, 18, 19, 20, 21, 22, 23 }; 982 983 return map[r & 0xf]; 984} 985 986static void gen_ext(DisasContext *ctx, int wordsz, int rd, int rs, int rt, 987 int shift) 988{ 989 gen_align_bits(ctx, wordsz, rd, rs, rt, wordsz - shift); 990} 991 992static void gen_llwp(DisasContext *ctx, uint32_t base, int16_t offset, 993 uint32_t reg1, uint32_t reg2) 994{ 995 TCGv taddr = tcg_temp_new(); 996 TCGv_i64 tval = tcg_temp_new_i64(); 997 TCGv tmp1 = tcg_temp_new(); 998 TCGv tmp2 = tcg_temp_new(); 999 1000 gen_base_offset_addr(ctx, taddr, base, offset); 1001 tcg_gen_qemu_ld_i64(tval, taddr, ctx->mem_idx, MO_TEUQ | MO_ALIGN); 1002 if (cpu_is_bigendian(ctx)) { 1003 tcg_gen_extr_i64_tl(tmp2, tmp1, tval); 1004 } else { 1005 tcg_gen_extr_i64_tl(tmp1, tmp2, tval); 1006 } 1007 gen_store_gpr(tmp1, reg1); 1008 gen_store_gpr(tmp2, reg2); 1009 tcg_gen_st_i64(tval, cpu_env, offsetof(CPUMIPSState, llval_wp)); 1010 tcg_gen_st_tl(taddr, cpu_env, offsetof(CPUMIPSState, lladdr)); 1011} 1012 1013static void gen_scwp(DisasContext *ctx, uint32_t base, int16_t offset, 1014 uint32_t reg1, uint32_t reg2, bool eva) 1015{ 1016 TCGv taddr = tcg_temp_new(); 1017 TCGv lladdr = tcg_temp_new(); 1018 TCGv_i64 tval = tcg_temp_new_i64(); 1019 TCGv_i64 llval = tcg_temp_new_i64(); 1020 TCGv_i64 val = tcg_temp_new_i64(); 1021 TCGv tmp1 = tcg_temp_new(); 1022 TCGv tmp2 = tcg_temp_new(); 1023 TCGLabel *lab_fail = gen_new_label(); 1024 TCGLabel *lab_done = gen_new_label(); 1025 1026 gen_base_offset_addr(ctx, taddr, base, offset); 1027 1028 tcg_gen_ld_tl(lladdr, cpu_env, offsetof(CPUMIPSState, lladdr)); 1029 tcg_gen_brcond_tl(TCG_COND_NE, taddr, lladdr, lab_fail); 1030 1031 gen_load_gpr(tmp1, reg1); 1032 gen_load_gpr(tmp2, reg2); 1033 1034 if (cpu_is_bigendian(ctx)) { 1035 tcg_gen_concat_tl_i64(tval, tmp2, tmp1); 1036 } else { 1037 tcg_gen_concat_tl_i64(tval, tmp1, tmp2); 1038 } 1039 1040 tcg_gen_ld_i64(llval, cpu_env, offsetof(CPUMIPSState, llval_wp)); 1041 tcg_gen_atomic_cmpxchg_i64(val, taddr, llval, tval, 1042 eva ? MIPS_HFLAG_UM : ctx->mem_idx, 1043 MO_64 | MO_ALIGN); 1044 if (reg1 != 0) { 1045 tcg_gen_movi_tl(cpu_gpr[reg1], 1); 1046 } 1047 tcg_gen_brcond_i64(TCG_COND_EQ, val, llval, lab_done); 1048 1049 gen_set_label(lab_fail); 1050 1051 if (reg1 != 0) { 1052 tcg_gen_movi_tl(cpu_gpr[reg1], 0); 1053 } 1054 gen_set_label(lab_done); 1055 tcg_gen_movi_tl(lladdr, -1); 1056 tcg_gen_st_tl(lladdr, cpu_env, offsetof(CPUMIPSState, lladdr)); 1057} 1058 1059static void gen_adjust_sp(DisasContext *ctx, int u) 1060{ 1061 gen_op_addr_addi(ctx, cpu_gpr[29], cpu_gpr[29], u); 1062} 1063 1064static void gen_save(DisasContext *ctx, uint8_t rt, uint8_t count, 1065 uint8_t gp, uint16_t u) 1066{ 1067 int counter = 0; 1068 TCGv va = tcg_temp_new(); 1069 TCGv t0 = tcg_temp_new(); 1070 1071 while (counter != count) { 1072 bool use_gp = gp && (counter == count - 1); 1073 int this_rt = use_gp ? 28 : (rt & 0x10) | ((rt + counter) & 0x1f); 1074 int this_offset = -((counter + 1) << 2); 1075 gen_base_offset_addr(ctx, va, 29, this_offset); 1076 gen_load_gpr(t0, this_rt); 1077 tcg_gen_qemu_st_tl(t0, va, ctx->mem_idx, 1078 (MO_TEUL | ctx->default_tcg_memop_mask)); 1079 counter++; 1080 } 1081 1082 /* adjust stack pointer */ 1083 gen_adjust_sp(ctx, -u); 1084} 1085 1086static void gen_restore(DisasContext *ctx, uint8_t rt, uint8_t count, 1087 uint8_t gp, uint16_t u) 1088{ 1089 int counter = 0; 1090 TCGv va = tcg_temp_new(); 1091 TCGv t0 = tcg_temp_new(); 1092 1093 while (counter != count) { 1094 bool use_gp = gp && (counter == count - 1); 1095 int this_rt = use_gp ? 28 : (rt & 0x10) | ((rt + counter) & 0x1f); 1096 int this_offset = u - ((counter + 1) << 2); 1097 gen_base_offset_addr(ctx, va, 29, this_offset); 1098 tcg_gen_qemu_ld_tl(t0, va, ctx->mem_idx, MO_TESL | 1099 ctx->default_tcg_memop_mask); 1100 tcg_gen_ext32s_tl(t0, t0); 1101 gen_store_gpr(t0, this_rt); 1102 counter++; 1103 } 1104 1105 /* adjust stack pointer */ 1106 gen_adjust_sp(ctx, u); 1107} 1108 1109static void gen_compute_branch_nm(DisasContext *ctx, uint32_t opc, 1110 int insn_bytes, 1111 int rs, int rt, int32_t offset) 1112{ 1113 target_ulong btgt = -1; 1114 int bcond_compute = 0; 1115 TCGv t0 = tcg_temp_new(); 1116 TCGv t1 = tcg_temp_new(); 1117 1118 /* Load needed operands */ 1119 switch (opc) { 1120 case OPC_BEQ: 1121 case OPC_BNE: 1122 /* Compare two registers */ 1123 if (rs != rt) { 1124 gen_load_gpr(t0, rs); 1125 gen_load_gpr(t1, rt); 1126 bcond_compute = 1; 1127 } 1128 btgt = ctx->base.pc_next + insn_bytes + offset; 1129 break; 1130 case OPC_BGEZAL: 1131 /* Compare to zero */ 1132 if (rs != 0) { 1133 gen_load_gpr(t0, rs); 1134 bcond_compute = 1; 1135 } 1136 btgt = ctx->base.pc_next + insn_bytes + offset; 1137 break; 1138 case OPC_BPOSGE32: 1139 tcg_gen_andi_tl(t0, cpu_dspctrl, 0x3F); 1140 bcond_compute = 1; 1141 btgt = ctx->base.pc_next + insn_bytes + offset; 1142 break; 1143 case OPC_JR: 1144 case OPC_JALR: 1145 /* Jump to register */ 1146 if (offset != 0 && offset != 16) { 1147 /* 1148 * Hint = 0 is JR/JALR, hint 16 is JR.HB/JALR.HB, the 1149 * others are reserved. 1150 */ 1151 MIPS_INVAL("jump hint"); 1152 gen_reserved_instruction(ctx); 1153 goto out; 1154 } 1155 gen_load_gpr(btarget, rs); 1156 break; 1157 default: 1158 MIPS_INVAL("branch/jump"); 1159 gen_reserved_instruction(ctx); 1160 goto out; 1161 } 1162 if (bcond_compute == 0) { 1163 /* No condition to be computed */ 1164 switch (opc) { 1165 case OPC_BEQ: /* rx == rx */ 1166 /* Always take */ 1167 ctx->hflags |= MIPS_HFLAG_B; 1168 break; 1169 case OPC_BGEZAL: /* 0 >= 0 */ 1170 /* Always take and link */ 1171 tcg_gen_movi_tl(cpu_gpr[31], 1172 ctx->base.pc_next + insn_bytes); 1173 ctx->hflags |= MIPS_HFLAG_B; 1174 break; 1175 case OPC_BNE: /* rx != rx */ 1176 tcg_gen_movi_tl(cpu_gpr[31], ctx->base.pc_next + 8); 1177 /* Skip the instruction in the delay slot */ 1178 ctx->base.pc_next += 4; 1179 goto out; 1180 case OPC_JR: 1181 ctx->hflags |= MIPS_HFLAG_BR; 1182 break; 1183 case OPC_JALR: 1184 if (rt > 0) { 1185 tcg_gen_movi_tl(cpu_gpr[rt], 1186 ctx->base.pc_next + insn_bytes); 1187 } 1188 ctx->hflags |= MIPS_HFLAG_BR; 1189 break; 1190 default: 1191 MIPS_INVAL("branch/jump"); 1192 gen_reserved_instruction(ctx); 1193 goto out; 1194 } 1195 } else { 1196 switch (opc) { 1197 case OPC_BEQ: 1198 tcg_gen_setcond_tl(TCG_COND_EQ, bcond, t0, t1); 1199 goto not_likely; 1200 case OPC_BNE: 1201 tcg_gen_setcond_tl(TCG_COND_NE, bcond, t0, t1); 1202 goto not_likely; 1203 case OPC_BGEZAL: 1204 tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 0); 1205 tcg_gen_movi_tl(cpu_gpr[31], 1206 ctx->base.pc_next + insn_bytes); 1207 goto not_likely; 1208 case OPC_BPOSGE32: 1209 tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 32); 1210 not_likely: 1211 ctx->hflags |= MIPS_HFLAG_BC; 1212 break; 1213 default: 1214 MIPS_INVAL("conditional branch/jump"); 1215 gen_reserved_instruction(ctx); 1216 goto out; 1217 } 1218 } 1219 1220 ctx->btarget = btgt; 1221 1222 out: 1223 if (insn_bytes == 2) { 1224 ctx->hflags |= MIPS_HFLAG_B16; 1225 } 1226} 1227 1228static void gen_pool16c_nanomips_insn(DisasContext *ctx) 1229{ 1230 int rt = decode_gpr_gpr3(NANOMIPS_EXTRACT_RT3(ctx->opcode)); 1231 int rs = decode_gpr_gpr3(NANOMIPS_EXTRACT_RS3(ctx->opcode)); 1232 1233 switch (extract32(ctx->opcode, 2, 2)) { 1234 case NM_NOT16: 1235 gen_logic(ctx, OPC_NOR, rt, rs, 0); 1236 break; 1237 case NM_AND16: 1238 gen_logic(ctx, OPC_AND, rt, rt, rs); 1239 break; 1240 case NM_XOR16: 1241 gen_logic(ctx, OPC_XOR, rt, rt, rs); 1242 break; 1243 case NM_OR16: 1244 gen_logic(ctx, OPC_OR, rt, rt, rs); 1245 break; 1246 } 1247} 1248 1249static void gen_pool32a0_nanomips_insn(CPUMIPSState *env, DisasContext *ctx) 1250{ 1251 int rt = extract32(ctx->opcode, 21, 5); 1252 int rs = extract32(ctx->opcode, 16, 5); 1253 int rd = extract32(ctx->opcode, 11, 5); 1254 1255 switch (extract32(ctx->opcode, 3, 7)) { 1256 case NM_P_TRAP: 1257 switch (extract32(ctx->opcode, 10, 1)) { 1258 case NM_TEQ: 1259 check_nms(ctx); 1260 gen_trap(ctx, OPC_TEQ, rs, rt, -1, rd); 1261 break; 1262 case NM_TNE: 1263 check_nms(ctx); 1264 gen_trap(ctx, OPC_TNE, rs, rt, -1, rd); 1265 break; 1266 } 1267 break; 1268 case NM_RDHWR: 1269 check_nms(ctx); 1270 gen_rdhwr(ctx, rt, rs, extract32(ctx->opcode, 11, 3)); 1271 break; 1272 case NM_SEB: 1273 check_nms(ctx); 1274 gen_bshfl(ctx, OPC_SEB, rs, rt); 1275 break; 1276 case NM_SEH: 1277 gen_bshfl(ctx, OPC_SEH, rs, rt); 1278 break; 1279 case NM_SLLV: 1280 gen_shift(ctx, OPC_SLLV, rd, rt, rs); 1281 break; 1282 case NM_SRLV: 1283 gen_shift(ctx, OPC_SRLV, rd, rt, rs); 1284 break; 1285 case NM_SRAV: 1286 gen_shift(ctx, OPC_SRAV, rd, rt, rs); 1287 break; 1288 case NM_ROTRV: 1289 gen_shift(ctx, OPC_ROTRV, rd, rt, rs); 1290 break; 1291 case NM_ADD: 1292 gen_arith(ctx, OPC_ADD, rd, rs, rt); 1293 break; 1294 case NM_ADDU: 1295 gen_arith(ctx, OPC_ADDU, rd, rs, rt); 1296 break; 1297 case NM_SUB: 1298 check_nms(ctx); 1299 gen_arith(ctx, OPC_SUB, rd, rs, rt); 1300 break; 1301 case NM_SUBU: 1302 gen_arith(ctx, OPC_SUBU, rd, rs, rt); 1303 break; 1304 case NM_P_CMOVE: 1305 switch (extract32(ctx->opcode, 10, 1)) { 1306 case NM_MOVZ: 1307 gen_cond_move(ctx, OPC_MOVZ, rd, rs, rt); 1308 break; 1309 case NM_MOVN: 1310 gen_cond_move(ctx, OPC_MOVN, rd, rs, rt); 1311 break; 1312 } 1313 break; 1314 case NM_AND: 1315 gen_logic(ctx, OPC_AND, rd, rs, rt); 1316 break; 1317 case NM_OR: 1318 gen_logic(ctx, OPC_OR, rd, rs, rt); 1319 break; 1320 case NM_NOR: 1321 gen_logic(ctx, OPC_NOR, rd, rs, rt); 1322 break; 1323 case NM_XOR: 1324 gen_logic(ctx, OPC_XOR, rd, rs, rt); 1325 break; 1326 case NM_SLT: 1327 gen_slt(ctx, OPC_SLT, rd, rs, rt); 1328 break; 1329 case NM_P_SLTU: 1330 if (rd == 0) { 1331 /* P_DVP */ 1332#ifndef CONFIG_USER_ONLY 1333 TCGv t0 = tcg_temp_new(); 1334 switch (extract32(ctx->opcode, 10, 1)) { 1335 case NM_DVP: 1336 if (ctx->vp) { 1337 check_cp0_enabled(ctx); 1338 gen_helper_dvp(t0, cpu_env); 1339 gen_store_gpr(t0, rt); 1340 } 1341 break; 1342 case NM_EVP: 1343 if (ctx->vp) { 1344 check_cp0_enabled(ctx); 1345 gen_helper_evp(t0, cpu_env); 1346 gen_store_gpr(t0, rt); 1347 } 1348 break; 1349 } 1350#endif 1351 } else { 1352 gen_slt(ctx, OPC_SLTU, rd, rs, rt); 1353 } 1354 break; 1355 case NM_SOV: 1356 { 1357 TCGv t0 = tcg_temp_new(); 1358 TCGv t1 = tcg_temp_new(); 1359 TCGv t2 = tcg_temp_new(); 1360 1361 gen_load_gpr(t1, rs); 1362 gen_load_gpr(t2, rt); 1363 tcg_gen_add_tl(t0, t1, t2); 1364 tcg_gen_ext32s_tl(t0, t0); 1365 tcg_gen_xor_tl(t1, t1, t2); 1366 tcg_gen_xor_tl(t2, t0, t2); 1367 tcg_gen_andc_tl(t1, t2, t1); 1368 1369 /* operands of same sign, result different sign */ 1370 tcg_gen_setcondi_tl(TCG_COND_LT, t0, t1, 0); 1371 gen_store_gpr(t0, rd); 1372 } 1373 break; 1374 case NM_MUL: 1375 gen_r6_muldiv(ctx, R6_OPC_MUL, rd, rs, rt); 1376 break; 1377 case NM_MUH: 1378 gen_r6_muldiv(ctx, R6_OPC_MUH, rd, rs, rt); 1379 break; 1380 case NM_MULU: 1381 gen_r6_muldiv(ctx, R6_OPC_MULU, rd, rs, rt); 1382 break; 1383 case NM_MUHU: 1384 gen_r6_muldiv(ctx, R6_OPC_MUHU, rd, rs, rt); 1385 break; 1386 case NM_DIV: 1387 gen_r6_muldiv(ctx, R6_OPC_DIV, rd, rs, rt); 1388 break; 1389 case NM_MOD: 1390 gen_r6_muldiv(ctx, R6_OPC_MOD, rd, rs, rt); 1391 break; 1392 case NM_DIVU: 1393 gen_r6_muldiv(ctx, R6_OPC_DIVU, rd, rs, rt); 1394 break; 1395 case NM_MODU: 1396 gen_r6_muldiv(ctx, R6_OPC_MODU, rd, rs, rt); 1397 break; 1398#ifndef CONFIG_USER_ONLY 1399 case NM_MFC0: 1400 check_cp0_enabled(ctx); 1401 if (rt == 0) { 1402 /* Treat as NOP. */ 1403 break; 1404 } 1405 gen_mfc0(ctx, cpu_gpr[rt], rs, extract32(ctx->opcode, 11, 3)); 1406 break; 1407 case NM_MTC0: 1408 check_cp0_enabled(ctx); 1409 { 1410 TCGv t0 = tcg_temp_new(); 1411 1412 gen_load_gpr(t0, rt); 1413 gen_mtc0(ctx, t0, rs, extract32(ctx->opcode, 11, 3)); 1414 } 1415 break; 1416 case NM_D_E_MT_VPE: 1417 { 1418 uint8_t sc = extract32(ctx->opcode, 10, 1); 1419 TCGv t0 = tcg_temp_new(); 1420 1421 switch (sc) { 1422 case 0: 1423 if (rs == 1) { 1424 /* DMT */ 1425 check_cp0_mt(ctx); 1426 gen_helper_dmt(t0); 1427 gen_store_gpr(t0, rt); 1428 } else if (rs == 0) { 1429 /* DVPE */ 1430 check_cp0_mt(ctx); 1431 gen_helper_dvpe(t0, cpu_env); 1432 gen_store_gpr(t0, rt); 1433 } else { 1434 gen_reserved_instruction(ctx); 1435 } 1436 break; 1437 case 1: 1438 if (rs == 1) { 1439 /* EMT */ 1440 check_cp0_mt(ctx); 1441 gen_helper_emt(t0); 1442 gen_store_gpr(t0, rt); 1443 } else if (rs == 0) { 1444 /* EVPE */ 1445 check_cp0_mt(ctx); 1446 gen_helper_evpe(t0, cpu_env); 1447 gen_store_gpr(t0, rt); 1448 } else { 1449 gen_reserved_instruction(ctx); 1450 } 1451 break; 1452 } 1453 } 1454 break; 1455 case NM_FORK: 1456 check_mt(ctx); 1457 { 1458 TCGv t0 = tcg_temp_new(); 1459 TCGv t1 = tcg_temp_new(); 1460 1461 gen_load_gpr(t0, rt); 1462 gen_load_gpr(t1, rs); 1463 gen_helper_fork(t0, t1); 1464 } 1465 break; 1466 case NM_MFTR: 1467 case NM_MFHTR: 1468 check_cp0_enabled(ctx); 1469 if (rd == 0) { 1470 /* Treat as NOP. */ 1471 return; 1472 } 1473 gen_mftr(env, ctx, rs, rt, extract32(ctx->opcode, 10, 1), 1474 extract32(ctx->opcode, 11, 5), extract32(ctx->opcode, 3, 1)); 1475 break; 1476 case NM_MTTR: 1477 case NM_MTHTR: 1478 check_cp0_enabled(ctx); 1479 gen_mttr(env, ctx, rs, rt, extract32(ctx->opcode, 10, 1), 1480 extract32(ctx->opcode, 11, 5), extract32(ctx->opcode, 3, 1)); 1481 break; 1482 case NM_YIELD: 1483 check_mt(ctx); 1484 { 1485 TCGv t0 = tcg_temp_new(); 1486 1487 gen_load_gpr(t0, rs); 1488 gen_helper_yield(t0, cpu_env, t0); 1489 gen_store_gpr(t0, rt); 1490 } 1491 break; 1492#endif 1493 default: 1494 gen_reserved_instruction(ctx); 1495 break; 1496 } 1497} 1498 1499/* dsp */ 1500static void gen_pool32axf_1_5_nanomips_insn(DisasContext *ctx, uint32_t opc, 1501 int ret, int v1, int v2) 1502{ 1503 TCGv_i32 t0; 1504 TCGv v0_t; 1505 TCGv v1_t; 1506 1507 t0 = tcg_temp_new_i32(); 1508 1509 v0_t = tcg_temp_new(); 1510 v1_t = tcg_temp_new(); 1511 1512 tcg_gen_movi_i32(t0, v2 >> 3); 1513 1514 gen_load_gpr(v0_t, ret); 1515 gen_load_gpr(v1_t, v1); 1516 1517 switch (opc) { 1518 case NM_MAQ_S_W_PHR: 1519 check_dsp(ctx); 1520 gen_helper_maq_s_w_phr(t0, v1_t, v0_t, cpu_env); 1521 break; 1522 case NM_MAQ_S_W_PHL: 1523 check_dsp(ctx); 1524 gen_helper_maq_s_w_phl(t0, v1_t, v0_t, cpu_env); 1525 break; 1526 case NM_MAQ_SA_W_PHR: 1527 check_dsp(ctx); 1528 gen_helper_maq_sa_w_phr(t0, v1_t, v0_t, cpu_env); 1529 break; 1530 case NM_MAQ_SA_W_PHL: 1531 check_dsp(ctx); 1532 gen_helper_maq_sa_w_phl(t0, v1_t, v0_t, cpu_env); 1533 break; 1534 default: 1535 gen_reserved_instruction(ctx); 1536 break; 1537 } 1538} 1539 1540 1541static void gen_pool32axf_1_nanomips_insn(DisasContext *ctx, uint32_t opc, 1542 int ret, int v1, int v2) 1543{ 1544 int16_t imm; 1545 TCGv t0 = tcg_temp_new(); 1546 TCGv t1 = tcg_temp_new(); 1547 TCGv v0_t = tcg_temp_new(); 1548 1549 gen_load_gpr(v0_t, v1); 1550 1551 switch (opc) { 1552 case NM_POOL32AXF_1_0: 1553 check_dsp(ctx); 1554 switch (extract32(ctx->opcode, 12, 2)) { 1555 case NM_MFHI: 1556 gen_HILO(ctx, OPC_MFHI, v2 >> 3, ret); 1557 break; 1558 case NM_MFLO: 1559 gen_HILO(ctx, OPC_MFLO, v2 >> 3, ret); 1560 break; 1561 case NM_MTHI: 1562 gen_HILO(ctx, OPC_MTHI, v2 >> 3, v1); 1563 break; 1564 case NM_MTLO: 1565 gen_HILO(ctx, OPC_MTLO, v2 >> 3, v1); 1566 break; 1567 } 1568 break; 1569 case NM_POOL32AXF_1_1: 1570 check_dsp(ctx); 1571 switch (extract32(ctx->opcode, 12, 2)) { 1572 case NM_MTHLIP: 1573 tcg_gen_movi_tl(t0, v2 >> 3); 1574 gen_helper_mthlip(t0, v0_t, cpu_env); 1575 break; 1576 case NM_SHILOV: 1577 tcg_gen_movi_tl(t0, v2 >> 3); 1578 gen_helper_shilo(t0, v0_t, cpu_env); 1579 break; 1580 default: 1581 gen_reserved_instruction(ctx); 1582 break; 1583 } 1584 break; 1585 case NM_POOL32AXF_1_3: 1586 check_dsp(ctx); 1587 imm = extract32(ctx->opcode, 14, 7); 1588 switch (extract32(ctx->opcode, 12, 2)) { 1589 case NM_RDDSP: 1590 tcg_gen_movi_tl(t0, imm); 1591 gen_helper_rddsp(t0, t0, cpu_env); 1592 gen_store_gpr(t0, ret); 1593 break; 1594 case NM_WRDSP: 1595 gen_load_gpr(t0, ret); 1596 tcg_gen_movi_tl(t1, imm); 1597 gen_helper_wrdsp(t0, t1, cpu_env); 1598 break; 1599 case NM_EXTP: 1600 tcg_gen_movi_tl(t0, v2 >> 3); 1601 tcg_gen_movi_tl(t1, v1); 1602 gen_helper_extp(t0, t0, t1, cpu_env); 1603 gen_store_gpr(t0, ret); 1604 break; 1605 case NM_EXTPDP: 1606 tcg_gen_movi_tl(t0, v2 >> 3); 1607 tcg_gen_movi_tl(t1, v1); 1608 gen_helper_extpdp(t0, t0, t1, cpu_env); 1609 gen_store_gpr(t0, ret); 1610 break; 1611 } 1612 break; 1613 case NM_POOL32AXF_1_4: 1614 check_dsp(ctx); 1615 tcg_gen_movi_tl(t0, v2 >> 2); 1616 switch (extract32(ctx->opcode, 12, 1)) { 1617 case NM_SHLL_QB: 1618 gen_helper_shll_qb(t0, t0, v0_t, cpu_env); 1619 gen_store_gpr(t0, ret); 1620 break; 1621 case NM_SHRL_QB: 1622 gen_helper_shrl_qb(t0, t0, v0_t); 1623 gen_store_gpr(t0, ret); 1624 break; 1625 } 1626 break; 1627 case NM_POOL32AXF_1_5: 1628 opc = extract32(ctx->opcode, 12, 2); 1629 gen_pool32axf_1_5_nanomips_insn(ctx, opc, ret, v1, v2); 1630 break; 1631 case NM_POOL32AXF_1_7: 1632 check_dsp(ctx); 1633 tcg_gen_movi_tl(t0, v2 >> 3); 1634 tcg_gen_movi_tl(t1, v1); 1635 switch (extract32(ctx->opcode, 12, 2)) { 1636 case NM_EXTR_W: 1637 gen_helper_extr_w(t0, t0, t1, cpu_env); 1638 gen_store_gpr(t0, ret); 1639 break; 1640 case NM_EXTR_R_W: 1641 gen_helper_extr_r_w(t0, t0, t1, cpu_env); 1642 gen_store_gpr(t0, ret); 1643 break; 1644 case NM_EXTR_RS_W: 1645 gen_helper_extr_rs_w(t0, t0, t1, cpu_env); 1646 gen_store_gpr(t0, ret); 1647 break; 1648 case NM_EXTR_S_H: 1649 gen_helper_extr_s_h(t0, t0, t1, cpu_env); 1650 gen_store_gpr(t0, ret); 1651 break; 1652 } 1653 break; 1654 default: 1655 gen_reserved_instruction(ctx); 1656 break; 1657 } 1658} 1659 1660static void gen_pool32axf_2_multiply(DisasContext *ctx, uint32_t opc, 1661 TCGv v0, TCGv v1, int rd) 1662{ 1663 TCGv_i32 t0; 1664 1665 t0 = tcg_temp_new_i32(); 1666 1667 tcg_gen_movi_i32(t0, rd >> 3); 1668 1669 switch (opc) { 1670 case NM_POOL32AXF_2_0_7: 1671 switch (extract32(ctx->opcode, 9, 3)) { 1672 case NM_DPA_W_PH: 1673 check_dsp_r2(ctx); 1674 gen_helper_dpa_w_ph(t0, v1, v0, cpu_env); 1675 break; 1676 case NM_DPAQ_S_W_PH: 1677 check_dsp(ctx); 1678 gen_helper_dpaq_s_w_ph(t0, v1, v0, cpu_env); 1679 break; 1680 case NM_DPS_W_PH: 1681 check_dsp_r2(ctx); 1682 gen_helper_dps_w_ph(t0, v1, v0, cpu_env); 1683 break; 1684 case NM_DPSQ_S_W_PH: 1685 check_dsp(ctx); 1686 gen_helper_dpsq_s_w_ph(t0, v1, v0, cpu_env); 1687 break; 1688 default: 1689 gen_reserved_instruction(ctx); 1690 break; 1691 } 1692 break; 1693 case NM_POOL32AXF_2_8_15: 1694 switch (extract32(ctx->opcode, 9, 3)) { 1695 case NM_DPAX_W_PH: 1696 check_dsp_r2(ctx); 1697 gen_helper_dpax_w_ph(t0, v0, v1, cpu_env); 1698 break; 1699 case NM_DPAQ_SA_L_W: 1700 check_dsp(ctx); 1701 gen_helper_dpaq_sa_l_w(t0, v0, v1, cpu_env); 1702 break; 1703 case NM_DPSX_W_PH: 1704 check_dsp_r2(ctx); 1705 gen_helper_dpsx_w_ph(t0, v0, v1, cpu_env); 1706 break; 1707 case NM_DPSQ_SA_L_W: 1708 check_dsp(ctx); 1709 gen_helper_dpsq_sa_l_w(t0, v0, v1, cpu_env); 1710 break; 1711 default: 1712 gen_reserved_instruction(ctx); 1713 break; 1714 } 1715 break; 1716 case NM_POOL32AXF_2_16_23: 1717 switch (extract32(ctx->opcode, 9, 3)) { 1718 case NM_DPAU_H_QBL: 1719 check_dsp(ctx); 1720 gen_helper_dpau_h_qbl(t0, v0, v1, cpu_env); 1721 break; 1722 case NM_DPAQX_S_W_PH: 1723 check_dsp_r2(ctx); 1724 gen_helper_dpaqx_s_w_ph(t0, v0, v1, cpu_env); 1725 break; 1726 case NM_DPSU_H_QBL: 1727 check_dsp(ctx); 1728 gen_helper_dpsu_h_qbl(t0, v0, v1, cpu_env); 1729 break; 1730 case NM_DPSQX_S_W_PH: 1731 check_dsp_r2(ctx); 1732 gen_helper_dpsqx_s_w_ph(t0, v0, v1, cpu_env); 1733 break; 1734 case NM_MULSA_W_PH: 1735 check_dsp_r2(ctx); 1736 gen_helper_mulsa_w_ph(t0, v0, v1, cpu_env); 1737 break; 1738 default: 1739 gen_reserved_instruction(ctx); 1740 break; 1741 } 1742 break; 1743 case NM_POOL32AXF_2_24_31: 1744 switch (extract32(ctx->opcode, 9, 3)) { 1745 case NM_DPAU_H_QBR: 1746 check_dsp(ctx); 1747 gen_helper_dpau_h_qbr(t0, v1, v0, cpu_env); 1748 break; 1749 case NM_DPAQX_SA_W_PH: 1750 check_dsp_r2(ctx); 1751 gen_helper_dpaqx_sa_w_ph(t0, v1, v0, cpu_env); 1752 break; 1753 case NM_DPSU_H_QBR: 1754 check_dsp(ctx); 1755 gen_helper_dpsu_h_qbr(t0, v1, v0, cpu_env); 1756 break; 1757 case NM_DPSQX_SA_W_PH: 1758 check_dsp_r2(ctx); 1759 gen_helper_dpsqx_sa_w_ph(t0, v1, v0, cpu_env); 1760 break; 1761 case NM_MULSAQ_S_W_PH: 1762 check_dsp(ctx); 1763 gen_helper_mulsaq_s_w_ph(t0, v1, v0, cpu_env); 1764 break; 1765 default: 1766 gen_reserved_instruction(ctx); 1767 break; 1768 } 1769 break; 1770 default: 1771 gen_reserved_instruction(ctx); 1772 break; 1773 } 1774} 1775 1776static void gen_pool32axf_2_nanomips_insn(DisasContext *ctx, uint32_t opc, 1777 int rt, int rs, int rd) 1778{ 1779 int ret = rt; 1780 TCGv t0 = tcg_temp_new(); 1781 TCGv t1 = tcg_temp_new(); 1782 TCGv v0_t = tcg_temp_new(); 1783 TCGv v1_t = tcg_temp_new(); 1784 1785 gen_load_gpr(v0_t, rt); 1786 gen_load_gpr(v1_t, rs); 1787 1788 switch (opc) { 1789 case NM_POOL32AXF_2_0_7: 1790 switch (extract32(ctx->opcode, 9, 3)) { 1791 case NM_DPA_W_PH: 1792 case NM_DPAQ_S_W_PH: 1793 case NM_DPS_W_PH: 1794 case NM_DPSQ_S_W_PH: 1795 gen_pool32axf_2_multiply(ctx, opc, v0_t, v1_t, rd); 1796 break; 1797 case NM_BALIGN: 1798 check_dsp_r2(ctx); 1799 if (rt != 0) { 1800 gen_load_gpr(t0, rs); 1801 rd &= 3; 1802 if (rd != 0 && rd != 2) { 1803 tcg_gen_shli_tl(cpu_gpr[ret], cpu_gpr[ret], 8 * rd); 1804 tcg_gen_ext32u_tl(t0, t0); 1805 tcg_gen_shri_tl(t0, t0, 8 * (4 - rd)); 1806 tcg_gen_or_tl(cpu_gpr[ret], cpu_gpr[ret], t0); 1807 } 1808 tcg_gen_ext32s_tl(cpu_gpr[ret], cpu_gpr[ret]); 1809 } 1810 break; 1811 case NM_MADD: 1812 check_dsp(ctx); 1813 { 1814 int acc = extract32(ctx->opcode, 14, 2); 1815 TCGv_i64 t2 = tcg_temp_new_i64(); 1816 TCGv_i64 t3 = tcg_temp_new_i64(); 1817 1818 gen_load_gpr(t0, rt); 1819 gen_load_gpr(t1, rs); 1820 tcg_gen_ext_tl_i64(t2, t0); 1821 tcg_gen_ext_tl_i64(t3, t1); 1822 tcg_gen_mul_i64(t2, t2, t3); 1823 tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]); 1824 tcg_gen_add_i64(t2, t2, t3); 1825 gen_move_low32(cpu_LO[acc], t2); 1826 gen_move_high32(cpu_HI[acc], t2); 1827 } 1828 break; 1829 case NM_MULT: 1830 check_dsp(ctx); 1831 { 1832 int acc = extract32(ctx->opcode, 14, 2); 1833 TCGv_i32 t2 = tcg_temp_new_i32(); 1834 TCGv_i32 t3 = tcg_temp_new_i32(); 1835 1836 if (acc || ctx->insn_flags & ISA_MIPS_R6) { 1837 check_dsp_r2(ctx); 1838 } 1839 gen_load_gpr(t0, rs); 1840 gen_load_gpr(t1, rt); 1841 tcg_gen_trunc_tl_i32(t2, t0); 1842 tcg_gen_trunc_tl_i32(t3, t1); 1843 tcg_gen_muls2_i32(t2, t3, t2, t3); 1844 tcg_gen_ext_i32_tl(cpu_LO[acc], t2); 1845 tcg_gen_ext_i32_tl(cpu_HI[acc], t3); 1846 } 1847 break; 1848 case NM_EXTRV_W: 1849 check_dsp(ctx); 1850 gen_load_gpr(v1_t, rs); 1851 tcg_gen_movi_tl(t0, rd >> 3); 1852 gen_helper_extr_w(t0, t0, v1_t, cpu_env); 1853 gen_store_gpr(t0, ret); 1854 break; 1855 } 1856 break; 1857 case NM_POOL32AXF_2_8_15: 1858 switch (extract32(ctx->opcode, 9, 3)) { 1859 case NM_DPAX_W_PH: 1860 case NM_DPAQ_SA_L_W: 1861 case NM_DPSX_W_PH: 1862 case NM_DPSQ_SA_L_W: 1863 gen_pool32axf_2_multiply(ctx, opc, v0_t, v1_t, rd); 1864 break; 1865 case NM_MADDU: 1866 check_dsp(ctx); 1867 { 1868 int acc = extract32(ctx->opcode, 14, 2); 1869 TCGv_i64 t2 = tcg_temp_new_i64(); 1870 TCGv_i64 t3 = tcg_temp_new_i64(); 1871 1872 gen_load_gpr(t0, rs); 1873 gen_load_gpr(t1, rt); 1874 tcg_gen_ext32u_tl(t0, t0); 1875 tcg_gen_ext32u_tl(t1, t1); 1876 tcg_gen_extu_tl_i64(t2, t0); 1877 tcg_gen_extu_tl_i64(t3, t1); 1878 tcg_gen_mul_i64(t2, t2, t3); 1879 tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]); 1880 tcg_gen_add_i64(t2, t2, t3); 1881 gen_move_low32(cpu_LO[acc], t2); 1882 gen_move_high32(cpu_HI[acc], t2); 1883 } 1884 break; 1885 case NM_MULTU: 1886 check_dsp(ctx); 1887 { 1888 int acc = extract32(ctx->opcode, 14, 2); 1889 TCGv_i32 t2 = tcg_temp_new_i32(); 1890 TCGv_i32 t3 = tcg_temp_new_i32(); 1891 1892 if (acc || ctx->insn_flags & ISA_MIPS_R6) { 1893 check_dsp_r2(ctx); 1894 } 1895 gen_load_gpr(t0, rs); 1896 gen_load_gpr(t1, rt); 1897 tcg_gen_trunc_tl_i32(t2, t0); 1898 tcg_gen_trunc_tl_i32(t3, t1); 1899 tcg_gen_mulu2_i32(t2, t3, t2, t3); 1900 tcg_gen_ext_i32_tl(cpu_LO[acc], t2); 1901 tcg_gen_ext_i32_tl(cpu_HI[acc], t3); 1902 } 1903 break; 1904 case NM_EXTRV_R_W: 1905 check_dsp(ctx); 1906 tcg_gen_movi_tl(t0, rd >> 3); 1907 gen_helper_extr_r_w(t0, t0, v1_t, cpu_env); 1908 gen_store_gpr(t0, ret); 1909 break; 1910 default: 1911 gen_reserved_instruction(ctx); 1912 break; 1913 } 1914 break; 1915 case NM_POOL32AXF_2_16_23: 1916 switch (extract32(ctx->opcode, 9, 3)) { 1917 case NM_DPAU_H_QBL: 1918 case NM_DPAQX_S_W_PH: 1919 case NM_DPSU_H_QBL: 1920 case NM_DPSQX_S_W_PH: 1921 case NM_MULSA_W_PH: 1922 gen_pool32axf_2_multiply(ctx, opc, v0_t, v1_t, rd); 1923 break; 1924 case NM_EXTPV: 1925 check_dsp(ctx); 1926 tcg_gen_movi_tl(t0, rd >> 3); 1927 gen_helper_extp(t0, t0, v1_t, cpu_env); 1928 gen_store_gpr(t0, ret); 1929 break; 1930 case NM_MSUB: 1931 check_dsp(ctx); 1932 { 1933 int acc = extract32(ctx->opcode, 14, 2); 1934 TCGv_i64 t2 = tcg_temp_new_i64(); 1935 TCGv_i64 t3 = tcg_temp_new_i64(); 1936 1937 gen_load_gpr(t0, rs); 1938 gen_load_gpr(t1, rt); 1939 tcg_gen_ext_tl_i64(t2, t0); 1940 tcg_gen_ext_tl_i64(t3, t1); 1941 tcg_gen_mul_i64(t2, t2, t3); 1942 tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]); 1943 tcg_gen_sub_i64(t2, t3, t2); 1944 gen_move_low32(cpu_LO[acc], t2); 1945 gen_move_high32(cpu_HI[acc], t2); 1946 } 1947 break; 1948 case NM_EXTRV_RS_W: 1949 check_dsp(ctx); 1950 tcg_gen_movi_tl(t0, rd >> 3); 1951 gen_helper_extr_rs_w(t0, t0, v1_t, cpu_env); 1952 gen_store_gpr(t0, ret); 1953 break; 1954 } 1955 break; 1956 case NM_POOL32AXF_2_24_31: 1957 switch (extract32(ctx->opcode, 9, 3)) { 1958 case NM_DPAU_H_QBR: 1959 case NM_DPAQX_SA_W_PH: 1960 case NM_DPSU_H_QBR: 1961 case NM_DPSQX_SA_W_PH: 1962 case NM_MULSAQ_S_W_PH: 1963 gen_pool32axf_2_multiply(ctx, opc, v0_t, v1_t, rd); 1964 break; 1965 case NM_EXTPDPV: 1966 check_dsp(ctx); 1967 tcg_gen_movi_tl(t0, rd >> 3); 1968 gen_helper_extpdp(t0, t0, v1_t, cpu_env); 1969 gen_store_gpr(t0, ret); 1970 break; 1971 case NM_MSUBU: 1972 check_dsp(ctx); 1973 { 1974 int acc = extract32(ctx->opcode, 14, 2); 1975 TCGv_i64 t2 = tcg_temp_new_i64(); 1976 TCGv_i64 t3 = tcg_temp_new_i64(); 1977 1978 gen_load_gpr(t0, rs); 1979 gen_load_gpr(t1, rt); 1980 tcg_gen_ext32u_tl(t0, t0); 1981 tcg_gen_ext32u_tl(t1, t1); 1982 tcg_gen_extu_tl_i64(t2, t0); 1983 tcg_gen_extu_tl_i64(t3, t1); 1984 tcg_gen_mul_i64(t2, t2, t3); 1985 tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]); 1986 tcg_gen_sub_i64(t2, t3, t2); 1987 gen_move_low32(cpu_LO[acc], t2); 1988 gen_move_high32(cpu_HI[acc], t2); 1989 } 1990 break; 1991 case NM_EXTRV_S_H: 1992 check_dsp(ctx); 1993 tcg_gen_movi_tl(t0, rd >> 3); 1994 gen_helper_extr_s_h(t0, t0, v1_t, cpu_env); 1995 gen_store_gpr(t0, ret); 1996 break; 1997 } 1998 break; 1999 default: 2000 gen_reserved_instruction(ctx); 2001 break; 2002 } 2003} 2004 2005static void gen_pool32axf_4_nanomips_insn(DisasContext *ctx, uint32_t opc, 2006 int rt, int rs) 2007{ 2008 int ret = rt; 2009 TCGv t0 = tcg_temp_new(); 2010 TCGv v0_t = tcg_temp_new(); 2011 2012 gen_load_gpr(v0_t, rs); 2013 2014 switch (opc) { 2015 case NM_ABSQ_S_QB: 2016 check_dsp_r2(ctx); 2017 gen_helper_absq_s_qb(v0_t, v0_t, cpu_env); 2018 gen_store_gpr(v0_t, ret); 2019 break; 2020 case NM_ABSQ_S_PH: 2021 check_dsp(ctx); 2022 gen_helper_absq_s_ph(v0_t, v0_t, cpu_env); 2023 gen_store_gpr(v0_t, ret); 2024 break; 2025 case NM_ABSQ_S_W: 2026 check_dsp(ctx); 2027 gen_helper_absq_s_w(v0_t, v0_t, cpu_env); 2028 gen_store_gpr(v0_t, ret); 2029 break; 2030 case NM_PRECEQ_W_PHL: 2031 check_dsp(ctx); 2032 tcg_gen_andi_tl(v0_t, v0_t, 0xFFFF0000); 2033 tcg_gen_ext32s_tl(v0_t, v0_t); 2034 gen_store_gpr(v0_t, ret); 2035 break; 2036 case NM_PRECEQ_W_PHR: 2037 check_dsp(ctx); 2038 tcg_gen_andi_tl(v0_t, v0_t, 0x0000FFFF); 2039 tcg_gen_shli_tl(v0_t, v0_t, 16); 2040 tcg_gen_ext32s_tl(v0_t, v0_t); 2041 gen_store_gpr(v0_t, ret); 2042 break; 2043 case NM_PRECEQU_PH_QBL: 2044 check_dsp(ctx); 2045 gen_helper_precequ_ph_qbl(v0_t, v0_t); 2046 gen_store_gpr(v0_t, ret); 2047 break; 2048 case NM_PRECEQU_PH_QBR: 2049 check_dsp(ctx); 2050 gen_helper_precequ_ph_qbr(v0_t, v0_t); 2051 gen_store_gpr(v0_t, ret); 2052 break; 2053 case NM_PRECEQU_PH_QBLA: 2054 check_dsp(ctx); 2055 gen_helper_precequ_ph_qbla(v0_t, v0_t); 2056 gen_store_gpr(v0_t, ret); 2057 break; 2058 case NM_PRECEQU_PH_QBRA: 2059 check_dsp(ctx); 2060 gen_helper_precequ_ph_qbra(v0_t, v0_t); 2061 gen_store_gpr(v0_t, ret); 2062 break; 2063 case NM_PRECEU_PH_QBL: 2064 check_dsp(ctx); 2065 gen_helper_preceu_ph_qbl(v0_t, v0_t); 2066 gen_store_gpr(v0_t, ret); 2067 break; 2068 case NM_PRECEU_PH_QBR: 2069 check_dsp(ctx); 2070 gen_helper_preceu_ph_qbr(v0_t, v0_t); 2071 gen_store_gpr(v0_t, ret); 2072 break; 2073 case NM_PRECEU_PH_QBLA: 2074 check_dsp(ctx); 2075 gen_helper_preceu_ph_qbla(v0_t, v0_t); 2076 gen_store_gpr(v0_t, ret); 2077 break; 2078 case NM_PRECEU_PH_QBRA: 2079 check_dsp(ctx); 2080 gen_helper_preceu_ph_qbra(v0_t, v0_t); 2081 gen_store_gpr(v0_t, ret); 2082 break; 2083 case NM_REPLV_PH: 2084 check_dsp(ctx); 2085 tcg_gen_ext16u_tl(v0_t, v0_t); 2086 tcg_gen_shli_tl(t0, v0_t, 16); 2087 tcg_gen_or_tl(v0_t, v0_t, t0); 2088 tcg_gen_ext32s_tl(v0_t, v0_t); 2089 gen_store_gpr(v0_t, ret); 2090 break; 2091 case NM_REPLV_QB: 2092 check_dsp(ctx); 2093 tcg_gen_ext8u_tl(v0_t, v0_t); 2094 tcg_gen_shli_tl(t0, v0_t, 8); 2095 tcg_gen_or_tl(v0_t, v0_t, t0); 2096 tcg_gen_shli_tl(t0, v0_t, 16); 2097 tcg_gen_or_tl(v0_t, v0_t, t0); 2098 tcg_gen_ext32s_tl(v0_t, v0_t); 2099 gen_store_gpr(v0_t, ret); 2100 break; 2101 case NM_BITREV: 2102 check_dsp(ctx); 2103 gen_helper_bitrev(v0_t, v0_t); 2104 gen_store_gpr(v0_t, ret); 2105 break; 2106 case NM_INSV: 2107 check_dsp(ctx); 2108 { 2109 TCGv tv0 = tcg_temp_new(); 2110 2111 gen_load_gpr(tv0, rt); 2112 gen_helper_insv(v0_t, cpu_env, v0_t, tv0); 2113 gen_store_gpr(v0_t, ret); 2114 } 2115 break; 2116 case NM_RADDU_W_QB: 2117 check_dsp(ctx); 2118 gen_helper_raddu_w_qb(v0_t, v0_t); 2119 gen_store_gpr(v0_t, ret); 2120 break; 2121 case NM_BITSWAP: 2122 gen_bitswap(ctx, OPC_BITSWAP, ret, rs); 2123 break; 2124 case NM_CLO: 2125 check_nms(ctx); 2126 gen_cl(ctx, OPC_CLO, ret, rs); 2127 break; 2128 case NM_CLZ: 2129 check_nms(ctx); 2130 gen_cl(ctx, OPC_CLZ, ret, rs); 2131 break; 2132 case NM_WSBH: 2133 gen_bshfl(ctx, OPC_WSBH, ret, rs); 2134 break; 2135 default: 2136 gen_reserved_instruction(ctx); 2137 break; 2138 } 2139} 2140 2141static void gen_pool32axf_7_nanomips_insn(DisasContext *ctx, uint32_t opc, 2142 int rt, int rs, int rd) 2143{ 2144 TCGv t0 = tcg_temp_new(); 2145 TCGv rs_t = tcg_temp_new(); 2146 2147 gen_load_gpr(rs_t, rs); 2148 2149 switch (opc) { 2150 case NM_SHRA_R_QB: 2151 check_dsp_r2(ctx); 2152 tcg_gen_movi_tl(t0, rd >> 2); 2153 switch (extract32(ctx->opcode, 12, 1)) { 2154 case 0: 2155 /* NM_SHRA_QB */ 2156 gen_helper_shra_qb(t0, t0, rs_t); 2157 gen_store_gpr(t0, rt); 2158 break; 2159 case 1: 2160 /* NM_SHRA_R_QB */ 2161 gen_helper_shra_r_qb(t0, t0, rs_t); 2162 gen_store_gpr(t0, rt); 2163 break; 2164 } 2165 break; 2166 case NM_SHRL_PH: 2167 check_dsp_r2(ctx); 2168 tcg_gen_movi_tl(t0, rd >> 1); 2169 gen_helper_shrl_ph(t0, t0, rs_t); 2170 gen_store_gpr(t0, rt); 2171 break; 2172 case NM_REPL_QB: 2173 check_dsp(ctx); 2174 { 2175 int16_t imm; 2176 target_long result; 2177 imm = extract32(ctx->opcode, 13, 8); 2178 result = (uint32_t)imm << 24 | 2179 (uint32_t)imm << 16 | 2180 (uint32_t)imm << 8 | 2181 (uint32_t)imm; 2182 result = (int32_t)result; 2183 tcg_gen_movi_tl(t0, result); 2184 gen_store_gpr(t0, rt); 2185 } 2186 break; 2187 default: 2188 gen_reserved_instruction(ctx); 2189 break; 2190 } 2191} 2192 2193 2194static void gen_pool32axf_nanomips_insn(CPUMIPSState *env, DisasContext *ctx) 2195{ 2196 int rt = extract32(ctx->opcode, 21, 5); 2197 int rs = extract32(ctx->opcode, 16, 5); 2198 int rd = extract32(ctx->opcode, 11, 5); 2199 2200 switch (extract32(ctx->opcode, 6, 3)) { 2201 case NM_POOL32AXF_1: 2202 { 2203 int32_t op1 = extract32(ctx->opcode, 9, 3); 2204 gen_pool32axf_1_nanomips_insn(ctx, op1, rt, rs, rd); 2205 } 2206 break; 2207 case NM_POOL32AXF_2: 2208 { 2209 int32_t op1 = extract32(ctx->opcode, 12, 2); 2210 gen_pool32axf_2_nanomips_insn(ctx, op1, rt, rs, rd); 2211 } 2212 break; 2213 case NM_POOL32AXF_4: 2214 { 2215 int32_t op1 = extract32(ctx->opcode, 9, 7); 2216 gen_pool32axf_4_nanomips_insn(ctx, op1, rt, rs); 2217 } 2218 break; 2219 case NM_POOL32AXF_5: 2220 switch (extract32(ctx->opcode, 9, 7)) { 2221#ifndef CONFIG_USER_ONLY 2222 case NM_TLBP: 2223 gen_cp0(env, ctx, OPC_TLBP, 0, 0); 2224 break; 2225 case NM_TLBR: 2226 gen_cp0(env, ctx, OPC_TLBR, 0, 0); 2227 break; 2228 case NM_TLBWI: 2229 gen_cp0(env, ctx, OPC_TLBWI, 0, 0); 2230 break; 2231 case NM_TLBWR: 2232 gen_cp0(env, ctx, OPC_TLBWR, 0, 0); 2233 break; 2234 case NM_TLBINV: 2235 gen_cp0(env, ctx, OPC_TLBINV, 0, 0); 2236 break; 2237 case NM_TLBINVF: 2238 gen_cp0(env, ctx, OPC_TLBINVF, 0, 0); 2239 break; 2240 case NM_DI: 2241 check_cp0_enabled(ctx); 2242 { 2243 TCGv t0 = tcg_temp_new(); 2244 2245 save_cpu_state(ctx, 1); 2246 gen_helper_di(t0, cpu_env); 2247 gen_store_gpr(t0, rt); 2248 /* Stop translation as we may have switched the execution mode */ 2249 ctx->base.is_jmp = DISAS_STOP; 2250 } 2251 break; 2252 case NM_EI: 2253 check_cp0_enabled(ctx); 2254 { 2255 TCGv t0 = tcg_temp_new(); 2256 2257 save_cpu_state(ctx, 1); 2258 gen_helper_ei(t0, cpu_env); 2259 gen_store_gpr(t0, rt); 2260 /* Stop translation as we may have switched the execution mode */ 2261 ctx->base.is_jmp = DISAS_STOP; 2262 } 2263 break; 2264 case NM_RDPGPR: 2265 check_cp0_enabled(ctx); 2266 gen_load_srsgpr(rs, rt); 2267 break; 2268 case NM_WRPGPR: 2269 check_cp0_enabled(ctx); 2270 gen_store_srsgpr(rs, rt); 2271 break; 2272 case NM_WAIT: 2273 gen_cp0(env, ctx, OPC_WAIT, 0, 0); 2274 break; 2275 case NM_DERET: 2276 gen_cp0(env, ctx, OPC_DERET, 0, 0); 2277 break; 2278 case NM_ERETX: 2279 gen_cp0(env, ctx, OPC_ERET, 0, 0); 2280 break; 2281#endif 2282 default: 2283 gen_reserved_instruction(ctx); 2284 break; 2285 } 2286 break; 2287 case NM_POOL32AXF_7: 2288 { 2289 int32_t op1 = extract32(ctx->opcode, 9, 3); 2290 gen_pool32axf_7_nanomips_insn(ctx, op1, rt, rs, rd); 2291 } 2292 break; 2293 default: 2294 gen_reserved_instruction(ctx); 2295 break; 2296 } 2297} 2298 2299/* Immediate Value Compact Branches */ 2300static void gen_compute_imm_branch(DisasContext *ctx, uint32_t opc, 2301 int rt, int32_t imm, int32_t offset) 2302{ 2303 TCGCond cond = TCG_COND_ALWAYS; 2304 TCGv t0 = tcg_temp_new(); 2305 TCGv t1 = tcg_temp_new(); 2306 2307 gen_load_gpr(t0, rt); 2308 tcg_gen_movi_tl(t1, imm); 2309 ctx->btarget = addr_add(ctx, ctx->base.pc_next + 4, offset); 2310 2311 /* Load needed operands and calculate btarget */ 2312 switch (opc) { 2313 case NM_BEQIC: 2314 if (rt == 0 && imm == 0) { 2315 /* Unconditional branch */ 2316 } else if (rt == 0 && imm != 0) { 2317 /* Treat as NOP */ 2318 return; 2319 } else { 2320 cond = TCG_COND_EQ; 2321 } 2322 break; 2323 case NM_BBEQZC: 2324 case NM_BBNEZC: 2325 check_nms(ctx); 2326 if (imm >= 32 && !(ctx->hflags & MIPS_HFLAG_64)) { 2327 gen_reserved_instruction(ctx); 2328 return; 2329 } else if (rt == 0 && opc == NM_BBEQZC) { 2330 /* Unconditional branch */ 2331 } else if (rt == 0 && opc == NM_BBNEZC) { 2332 /* Treat as NOP */ 2333 return; 2334 } else { 2335 tcg_gen_shri_tl(t0, t0, imm); 2336 tcg_gen_andi_tl(t0, t0, 1); 2337 tcg_gen_movi_tl(t1, 0); 2338 if (opc == NM_BBEQZC) { 2339 cond = TCG_COND_EQ; 2340 } else { 2341 cond = TCG_COND_NE; 2342 } 2343 } 2344 break; 2345 case NM_BNEIC: 2346 if (rt == 0 && imm == 0) { 2347 /* Treat as NOP */ 2348 return; 2349 } else if (rt == 0 && imm != 0) { 2350 /* Unconditional branch */ 2351 } else { 2352 cond = TCG_COND_NE; 2353 } 2354 break; 2355 case NM_BGEIC: 2356 if (rt == 0 && imm == 0) { 2357 /* Unconditional branch */ 2358 } else { 2359 cond = TCG_COND_GE; 2360 } 2361 break; 2362 case NM_BLTIC: 2363 cond = TCG_COND_LT; 2364 break; 2365 case NM_BGEIUC: 2366 if (rt == 0 && imm == 0) { 2367 /* Unconditional branch */ 2368 } else { 2369 cond = TCG_COND_GEU; 2370 } 2371 break; 2372 case NM_BLTIUC: 2373 cond = TCG_COND_LTU; 2374 break; 2375 default: 2376 MIPS_INVAL("Immediate Value Compact branch"); 2377 gen_reserved_instruction(ctx); 2378 return; 2379 } 2380 2381 /* branch completion */ 2382 clear_branch_hflags(ctx); 2383 ctx->base.is_jmp = DISAS_NORETURN; 2384 2385 if (cond == TCG_COND_ALWAYS) { 2386 /* Uncoditional compact branch */ 2387 gen_goto_tb(ctx, 0, ctx->btarget); 2388 } else { 2389 /* Conditional compact branch */ 2390 TCGLabel *fs = gen_new_label(); 2391 2392 tcg_gen_brcond_tl(tcg_invert_cond(cond), t0, t1, fs); 2393 2394 gen_goto_tb(ctx, 1, ctx->btarget); 2395 gen_set_label(fs); 2396 2397 gen_goto_tb(ctx, 0, ctx->base.pc_next + 4); 2398 } 2399} 2400 2401/* P.BALRSC type nanoMIPS R6 branches: BALRSC and BRSC */ 2402static void gen_compute_nanomips_pbalrsc_branch(DisasContext *ctx, int rs, 2403 int rt) 2404{ 2405 TCGv t0 = tcg_temp_new(); 2406 TCGv t1 = tcg_temp_new(); 2407 2408 /* load rs */ 2409 gen_load_gpr(t0, rs); 2410 2411 /* link */ 2412 if (rt != 0) { 2413 tcg_gen_movi_tl(cpu_gpr[rt], ctx->base.pc_next + 4); 2414 } 2415 2416 /* calculate btarget */ 2417 tcg_gen_shli_tl(t0, t0, 1); 2418 tcg_gen_movi_tl(t1, ctx->base.pc_next + 4); 2419 gen_op_addr_add(ctx, btarget, t1, t0); 2420 2421 /* branch completion */ 2422 clear_branch_hflags(ctx); 2423 ctx->base.is_jmp = DISAS_NORETURN; 2424 2425 /* unconditional branch to register */ 2426 tcg_gen_mov_tl(cpu_PC, btarget); 2427 tcg_gen_lookup_and_goto_ptr(); 2428} 2429 2430/* nanoMIPS Branches */ 2431static void gen_compute_compact_branch_nm(DisasContext *ctx, uint32_t opc, 2432 int rs, int rt, int32_t offset) 2433{ 2434 int bcond_compute = 0; 2435 TCGv t0 = tcg_temp_new(); 2436 TCGv t1 = tcg_temp_new(); 2437 2438 /* Load needed operands and calculate btarget */ 2439 switch (opc) { 2440 /* compact branch */ 2441 case OPC_BGEC: 2442 case OPC_BLTC: 2443 gen_load_gpr(t0, rs); 2444 gen_load_gpr(t1, rt); 2445 bcond_compute = 1; 2446 ctx->btarget = addr_add(ctx, ctx->base.pc_next + 4, offset); 2447 break; 2448 case OPC_BGEUC: 2449 case OPC_BLTUC: 2450 if (rs == 0 || rs == rt) { 2451 /* OPC_BLEZALC, OPC_BGEZALC */ 2452 /* OPC_BGTZALC, OPC_BLTZALC */ 2453 tcg_gen_movi_tl(cpu_gpr[31], ctx->base.pc_next + 4); 2454 } 2455 gen_load_gpr(t0, rs); 2456 gen_load_gpr(t1, rt); 2457 bcond_compute = 1; 2458 ctx->btarget = addr_add(ctx, ctx->base.pc_next + 4, offset); 2459 break; 2460 case OPC_BC: 2461 ctx->btarget = addr_add(ctx, ctx->base.pc_next + 4, offset); 2462 break; 2463 case OPC_BEQZC: 2464 if (rs != 0) { 2465 /* OPC_BEQZC, OPC_BNEZC */ 2466 gen_load_gpr(t0, rs); 2467 bcond_compute = 1; 2468 ctx->btarget = addr_add(ctx, ctx->base.pc_next + 4, offset); 2469 } else { 2470 /* OPC_JIC, OPC_JIALC */ 2471 TCGv tbase = tcg_temp_new(); 2472 TCGv toffset = tcg_temp_new(); 2473 2474 gen_load_gpr(tbase, rt); 2475 tcg_gen_movi_tl(toffset, offset); 2476 gen_op_addr_add(ctx, btarget, tbase, toffset); 2477 } 2478 break; 2479 default: 2480 MIPS_INVAL("Compact branch/jump"); 2481 gen_reserved_instruction(ctx); 2482 return; 2483 } 2484 2485 if (bcond_compute == 0) { 2486 /* Uncoditional compact branch */ 2487 switch (opc) { 2488 case OPC_BC: 2489 gen_goto_tb(ctx, 0, ctx->btarget); 2490 break; 2491 default: 2492 MIPS_INVAL("Compact branch/jump"); 2493 gen_reserved_instruction(ctx); 2494 return; 2495 } 2496 } else { 2497 /* Conditional compact branch */ 2498 TCGLabel *fs = gen_new_label(); 2499 2500 switch (opc) { 2501 case OPC_BGEUC: 2502 if (rs == 0 && rt != 0) { 2503 /* OPC_BLEZALC */ 2504 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_LE), t1, 0, fs); 2505 } else if (rs != 0 && rt != 0 && rs == rt) { 2506 /* OPC_BGEZALC */ 2507 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_GE), t1, 0, fs); 2508 } else { 2509 /* OPC_BGEUC */ 2510 tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_GEU), t0, t1, fs); 2511 } 2512 break; 2513 case OPC_BLTUC: 2514 if (rs == 0 && rt != 0) { 2515 /* OPC_BGTZALC */ 2516 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_GT), t1, 0, fs); 2517 } else if (rs != 0 && rt != 0 && rs == rt) { 2518 /* OPC_BLTZALC */ 2519 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_LT), t1, 0, fs); 2520 } else { 2521 /* OPC_BLTUC */ 2522 tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_LTU), t0, t1, fs); 2523 } 2524 break; 2525 case OPC_BGEC: 2526 if (rs == 0 && rt != 0) { 2527 /* OPC_BLEZC */ 2528 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_LE), t1, 0, fs); 2529 } else if (rs != 0 && rt != 0 && rs == rt) { 2530 /* OPC_BGEZC */ 2531 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_GE), t1, 0, fs); 2532 } else { 2533 /* OPC_BGEC */ 2534 tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_GE), t0, t1, fs); 2535 } 2536 break; 2537 case OPC_BLTC: 2538 if (rs == 0 && rt != 0) { 2539 /* OPC_BGTZC */ 2540 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_GT), t1, 0, fs); 2541 } else if (rs != 0 && rt != 0 && rs == rt) { 2542 /* OPC_BLTZC */ 2543 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_LT), t1, 0, fs); 2544 } else { 2545 /* OPC_BLTC */ 2546 tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_LT), t0, t1, fs); 2547 } 2548 break; 2549 case OPC_BEQZC: 2550 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_EQ), t0, 0, fs); 2551 break; 2552 default: 2553 MIPS_INVAL("Compact conditional branch/jump"); 2554 gen_reserved_instruction(ctx); 2555 return; 2556 } 2557 2558 /* branch completion */ 2559 clear_branch_hflags(ctx); 2560 ctx->base.is_jmp = DISAS_NORETURN; 2561 2562 /* Generating branch here as compact branches don't have delay slot */ 2563 gen_goto_tb(ctx, 1, ctx->btarget); 2564 gen_set_label(fs); 2565 2566 gen_goto_tb(ctx, 0, ctx->base.pc_next + 4); 2567 } 2568} 2569 2570 2571/* nanoMIPS CP1 Branches */ 2572static void gen_compute_branch_cp1_nm(DisasContext *ctx, uint32_t op, 2573 int32_t ft, int32_t offset) 2574{ 2575 target_ulong btarget; 2576 TCGv_i64 t0 = tcg_temp_new_i64(); 2577 2578 gen_load_fpr64(ctx, t0, ft); 2579 tcg_gen_andi_i64(t0, t0, 1); 2580 2581 btarget = addr_add(ctx, ctx->base.pc_next + 4, offset); 2582 2583 switch (op) { 2584 case NM_BC1EQZC: 2585 tcg_gen_xori_i64(t0, t0, 1); 2586 ctx->hflags |= MIPS_HFLAG_BC; 2587 break; 2588 case NM_BC1NEZC: 2589 /* t0 already set */ 2590 ctx->hflags |= MIPS_HFLAG_BC; 2591 break; 2592 default: 2593 MIPS_INVAL("cp1 cond branch"); 2594 gen_reserved_instruction(ctx); 2595 return; 2596 } 2597 2598 tcg_gen_trunc_i64_tl(bcond, t0); 2599 2600 ctx->btarget = btarget; 2601} 2602 2603 2604static void gen_p_lsx(DisasContext *ctx, int rd, int rs, int rt) 2605{ 2606 TCGv t0, t1; 2607 t0 = tcg_temp_new(); 2608 t1 = tcg_temp_new(); 2609 2610 gen_load_gpr(t0, rs); 2611 gen_load_gpr(t1, rt); 2612 2613 if ((extract32(ctx->opcode, 6, 1)) == 1) { 2614 /* PP.LSXS instructions require shifting */ 2615 switch (extract32(ctx->opcode, 7, 4)) { 2616 case NM_SHXS: 2617 check_nms(ctx); 2618 /* fall through */ 2619 case NM_LHXS: 2620 case NM_LHUXS: 2621 tcg_gen_shli_tl(t0, t0, 1); 2622 break; 2623 case NM_SWXS: 2624 check_nms(ctx); 2625 /* fall through */ 2626 case NM_LWXS: 2627 case NM_LWC1XS: 2628 case NM_SWC1XS: 2629 tcg_gen_shli_tl(t0, t0, 2); 2630 break; 2631 case NM_LDC1XS: 2632 case NM_SDC1XS: 2633 tcg_gen_shli_tl(t0, t0, 3); 2634 break; 2635 default: 2636 gen_reserved_instruction(ctx); 2637 return; 2638 } 2639 } 2640 gen_op_addr_add(ctx, t0, t0, t1); 2641 2642 switch (extract32(ctx->opcode, 7, 4)) { 2643 case NM_LBX: 2644 tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_SB); 2645 gen_store_gpr(t0, rd); 2646 break; 2647 case NM_LHX: 2648 /*case NM_LHXS:*/ 2649 tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, 2650 MO_TESW | ctx->default_tcg_memop_mask); 2651 gen_store_gpr(t0, rd); 2652 break; 2653 case NM_LWX: 2654 /*case NM_LWXS:*/ 2655 tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, 2656 MO_TESL | ctx->default_tcg_memop_mask); 2657 gen_store_gpr(t0, rd); 2658 break; 2659 case NM_LBUX: 2660 tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_UB); 2661 gen_store_gpr(t0, rd); 2662 break; 2663 case NM_LHUX: 2664 /*case NM_LHUXS:*/ 2665 tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, 2666 MO_TEUW | ctx->default_tcg_memop_mask); 2667 gen_store_gpr(t0, rd); 2668 break; 2669 case NM_SBX: 2670 check_nms(ctx); 2671 gen_load_gpr(t1, rd); 2672 tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_8); 2673 break; 2674 case NM_SHX: 2675 /*case NM_SHXS:*/ 2676 check_nms(ctx); 2677 gen_load_gpr(t1, rd); 2678 tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, 2679 MO_TEUW | ctx->default_tcg_memop_mask); 2680 break; 2681 case NM_SWX: 2682 /*case NM_SWXS:*/ 2683 check_nms(ctx); 2684 gen_load_gpr(t1, rd); 2685 tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, 2686 MO_TEUL | ctx->default_tcg_memop_mask); 2687 break; 2688 case NM_LWC1X: 2689 /*case NM_LWC1XS:*/ 2690 case NM_LDC1X: 2691 /*case NM_LDC1XS:*/ 2692 case NM_SWC1X: 2693 /*case NM_SWC1XS:*/ 2694 case NM_SDC1X: 2695 /*case NM_SDC1XS:*/ 2696 if (ctx->CP0_Config1 & (1 << CP0C1_FP)) { 2697 check_cp1_enabled(ctx); 2698 switch (extract32(ctx->opcode, 7, 4)) { 2699 case NM_LWC1X: 2700 /*case NM_LWC1XS:*/ 2701 gen_flt_ldst(ctx, OPC_LWC1, rd, t0); 2702 break; 2703 case NM_LDC1X: 2704 /*case NM_LDC1XS:*/ 2705 gen_flt_ldst(ctx, OPC_LDC1, rd, t0); 2706 break; 2707 case NM_SWC1X: 2708 /*case NM_SWC1XS:*/ 2709 gen_flt_ldst(ctx, OPC_SWC1, rd, t0); 2710 break; 2711 case NM_SDC1X: 2712 /*case NM_SDC1XS:*/ 2713 gen_flt_ldst(ctx, OPC_SDC1, rd, t0); 2714 break; 2715 } 2716 } else { 2717 generate_exception_err(ctx, EXCP_CpU, 1); 2718 } 2719 break; 2720 default: 2721 gen_reserved_instruction(ctx); 2722 break; 2723 } 2724} 2725 2726static void gen_pool32f_nanomips_insn(DisasContext *ctx) 2727{ 2728 int rt, rs, rd; 2729 2730 rt = extract32(ctx->opcode, 21, 5); 2731 rs = extract32(ctx->opcode, 16, 5); 2732 rd = extract32(ctx->opcode, 11, 5); 2733 2734 if (!(ctx->CP0_Config1 & (1 << CP0C1_FP))) { 2735 gen_reserved_instruction(ctx); 2736 return; 2737 } 2738 check_cp1_enabled(ctx); 2739 switch (extract32(ctx->opcode, 0, 3)) { 2740 case NM_POOL32F_0: 2741 switch (extract32(ctx->opcode, 3, 7)) { 2742 case NM_RINT_S: 2743 gen_farith(ctx, OPC_RINT_S, 0, rt, rs, 0); 2744 break; 2745 case NM_RINT_D: 2746 gen_farith(ctx, OPC_RINT_D, 0, rt, rs, 0); 2747 break; 2748 case NM_CLASS_S: 2749 gen_farith(ctx, OPC_CLASS_S, 0, rt, rs, 0); 2750 break; 2751 case NM_CLASS_D: 2752 gen_farith(ctx, OPC_CLASS_D, 0, rt, rs, 0); 2753 break; 2754 case NM_ADD_S: 2755 gen_farith(ctx, OPC_ADD_S, rt, rs, rd, 0); 2756 break; 2757 case NM_ADD_D: 2758 gen_farith(ctx, OPC_ADD_D, rt, rs, rd, 0); 2759 break; 2760 case NM_SUB_S: 2761 gen_farith(ctx, OPC_SUB_S, rt, rs, rd, 0); 2762 break; 2763 case NM_SUB_D: 2764 gen_farith(ctx, OPC_SUB_D, rt, rs, rd, 0); 2765 break; 2766 case NM_MUL_S: 2767 gen_farith(ctx, OPC_MUL_S, rt, rs, rd, 0); 2768 break; 2769 case NM_MUL_D: 2770 gen_farith(ctx, OPC_MUL_D, rt, rs, rd, 0); 2771 break; 2772 case NM_DIV_S: 2773 gen_farith(ctx, OPC_DIV_S, rt, rs, rd, 0); 2774 break; 2775 case NM_DIV_D: 2776 gen_farith(ctx, OPC_DIV_D, rt, rs, rd, 0); 2777 break; 2778 case NM_SELEQZ_S: 2779 gen_sel_s(ctx, OPC_SELEQZ_S, rd, rt, rs); 2780 break; 2781 case NM_SELEQZ_D: 2782 gen_sel_d(ctx, OPC_SELEQZ_D, rd, rt, rs); 2783 break; 2784 case NM_SELNEZ_S: 2785 gen_sel_s(ctx, OPC_SELNEZ_S, rd, rt, rs); 2786 break; 2787 case NM_SELNEZ_D: 2788 gen_sel_d(ctx, OPC_SELNEZ_D, rd, rt, rs); 2789 break; 2790 case NM_SEL_S: 2791 gen_sel_s(ctx, OPC_SEL_S, rd, rt, rs); 2792 break; 2793 case NM_SEL_D: 2794 gen_sel_d(ctx, OPC_SEL_D, rd, rt, rs); 2795 break; 2796 case NM_MADDF_S: 2797 gen_farith(ctx, OPC_MADDF_S, rt, rs, rd, 0); 2798 break; 2799 case NM_MADDF_D: 2800 gen_farith(ctx, OPC_MADDF_D, rt, rs, rd, 0); 2801 break; 2802 case NM_MSUBF_S: 2803 gen_farith(ctx, OPC_MSUBF_S, rt, rs, rd, 0); 2804 break; 2805 case NM_MSUBF_D: 2806 gen_farith(ctx, OPC_MSUBF_D, rt, rs, rd, 0); 2807 break; 2808 default: 2809 gen_reserved_instruction(ctx); 2810 break; 2811 } 2812 break; 2813 case NM_POOL32F_3: 2814 switch (extract32(ctx->opcode, 3, 3)) { 2815 case NM_MIN_FMT: 2816 switch (extract32(ctx->opcode, 9, 1)) { 2817 case FMT_SDPS_S: 2818 gen_farith(ctx, OPC_MIN_S, rt, rs, rd, 0); 2819 break; 2820 case FMT_SDPS_D: 2821 gen_farith(ctx, OPC_MIN_D, rt, rs, rd, 0); 2822 break; 2823 } 2824 break; 2825 case NM_MAX_FMT: 2826 switch (extract32(ctx->opcode, 9, 1)) { 2827 case FMT_SDPS_S: 2828 gen_farith(ctx, OPC_MAX_S, rt, rs, rd, 0); 2829 break; 2830 case FMT_SDPS_D: 2831 gen_farith(ctx, OPC_MAX_D, rt, rs, rd, 0); 2832 break; 2833 } 2834 break; 2835 case NM_MINA_FMT: 2836 switch (extract32(ctx->opcode, 9, 1)) { 2837 case FMT_SDPS_S: 2838 gen_farith(ctx, OPC_MINA_S, rt, rs, rd, 0); 2839 break; 2840 case FMT_SDPS_D: 2841 gen_farith(ctx, OPC_MINA_D, rt, rs, rd, 0); 2842 break; 2843 } 2844 break; 2845 case NM_MAXA_FMT: 2846 switch (extract32(ctx->opcode, 9, 1)) { 2847 case FMT_SDPS_S: 2848 gen_farith(ctx, OPC_MAXA_S, rt, rs, rd, 0); 2849 break; 2850 case FMT_SDPS_D: 2851 gen_farith(ctx, OPC_MAXA_D, rt, rs, rd, 0); 2852 break; 2853 } 2854 break; 2855 case NM_POOL32FXF: 2856 switch (extract32(ctx->opcode, 6, 8)) { 2857 case NM_CFC1: 2858 gen_cp1(ctx, OPC_CFC1, rt, rs); 2859 break; 2860 case NM_CTC1: 2861 gen_cp1(ctx, OPC_CTC1, rt, rs); 2862 break; 2863 case NM_MFC1: 2864 gen_cp1(ctx, OPC_MFC1, rt, rs); 2865 break; 2866 case NM_MTC1: 2867 gen_cp1(ctx, OPC_MTC1, rt, rs); 2868 break; 2869 case NM_MFHC1: 2870 gen_cp1(ctx, OPC_MFHC1, rt, rs); 2871 break; 2872 case NM_MTHC1: 2873 gen_cp1(ctx, OPC_MTHC1, rt, rs); 2874 break; 2875 case NM_CVT_S_PL: 2876 gen_farith(ctx, OPC_CVT_S_PL, -1, rs, rt, 0); 2877 break; 2878 case NM_CVT_S_PU: 2879 gen_farith(ctx, OPC_CVT_S_PU, -1, rs, rt, 0); 2880 break; 2881 default: 2882 switch (extract32(ctx->opcode, 6, 9)) { 2883 case NM_CVT_L_S: 2884 gen_farith(ctx, OPC_CVT_L_S, -1, rs, rt, 0); 2885 break; 2886 case NM_CVT_L_D: 2887 gen_farith(ctx, OPC_CVT_L_D, -1, rs, rt, 0); 2888 break; 2889 case NM_CVT_W_S: 2890 gen_farith(ctx, OPC_CVT_W_S, -1, rs, rt, 0); 2891 break; 2892 case NM_CVT_W_D: 2893 gen_farith(ctx, OPC_CVT_W_D, -1, rs, rt, 0); 2894 break; 2895 case NM_RSQRT_S: 2896 gen_farith(ctx, OPC_RSQRT_S, -1, rs, rt, 0); 2897 break; 2898 case NM_RSQRT_D: 2899 gen_farith(ctx, OPC_RSQRT_D, -1, rs, rt, 0); 2900 break; 2901 case NM_SQRT_S: 2902 gen_farith(ctx, OPC_SQRT_S, -1, rs, rt, 0); 2903 break; 2904 case NM_SQRT_D: 2905 gen_farith(ctx, OPC_SQRT_D, -1, rs, rt, 0); 2906 break; 2907 case NM_RECIP_S: 2908 gen_farith(ctx, OPC_RECIP_S, -1, rs, rt, 0); 2909 break; 2910 case NM_RECIP_D: 2911 gen_farith(ctx, OPC_RECIP_D, -1, rs, rt, 0); 2912 break; 2913 case NM_FLOOR_L_S: 2914 gen_farith(ctx, OPC_FLOOR_L_S, -1, rs, rt, 0); 2915 break; 2916 case NM_FLOOR_L_D: 2917 gen_farith(ctx, OPC_FLOOR_L_D, -1, rs, rt, 0); 2918 break; 2919 case NM_FLOOR_W_S: 2920 gen_farith(ctx, OPC_FLOOR_W_S, -1, rs, rt, 0); 2921 break; 2922 case NM_FLOOR_W_D: 2923 gen_farith(ctx, OPC_FLOOR_W_D, -1, rs, rt, 0); 2924 break; 2925 case NM_CEIL_L_S: 2926 gen_farith(ctx, OPC_CEIL_L_S, -1, rs, rt, 0); 2927 break; 2928 case NM_CEIL_L_D: 2929 gen_farith(ctx, OPC_CEIL_L_D, -1, rs, rt, 0); 2930 break; 2931 case NM_CEIL_W_S: 2932 gen_farith(ctx, OPC_CEIL_W_S, -1, rs, rt, 0); 2933 break; 2934 case NM_CEIL_W_D: 2935 gen_farith(ctx, OPC_CEIL_W_D, -1, rs, rt, 0); 2936 break; 2937 case NM_TRUNC_L_S: 2938 gen_farith(ctx, OPC_TRUNC_L_S, -1, rs, rt, 0); 2939 break; 2940 case NM_TRUNC_L_D: 2941 gen_farith(ctx, OPC_TRUNC_L_D, -1, rs, rt, 0); 2942 break; 2943 case NM_TRUNC_W_S: 2944 gen_farith(ctx, OPC_TRUNC_W_S, -1, rs, rt, 0); 2945 break; 2946 case NM_TRUNC_W_D: 2947 gen_farith(ctx, OPC_TRUNC_W_D, -1, rs, rt, 0); 2948 break; 2949 case NM_ROUND_L_S: 2950 gen_farith(ctx, OPC_ROUND_L_S, -1, rs, rt, 0); 2951 break; 2952 case NM_ROUND_L_D: 2953 gen_farith(ctx, OPC_ROUND_L_D, -1, rs, rt, 0); 2954 break; 2955 case NM_ROUND_W_S: 2956 gen_farith(ctx, OPC_ROUND_W_S, -1, rs, rt, 0); 2957 break; 2958 case NM_ROUND_W_D: 2959 gen_farith(ctx, OPC_ROUND_W_D, -1, rs, rt, 0); 2960 break; 2961 case NM_MOV_S: 2962 gen_farith(ctx, OPC_MOV_S, -1, rs, rt, 0); 2963 break; 2964 case NM_MOV_D: 2965 gen_farith(ctx, OPC_MOV_D, -1, rs, rt, 0); 2966 break; 2967 case NM_ABS_S: 2968 gen_farith(ctx, OPC_ABS_S, -1, rs, rt, 0); 2969 break; 2970 case NM_ABS_D: 2971 gen_farith(ctx, OPC_ABS_D, -1, rs, rt, 0); 2972 break; 2973 case NM_NEG_S: 2974 gen_farith(ctx, OPC_NEG_S, -1, rs, rt, 0); 2975 break; 2976 case NM_NEG_D: 2977 gen_farith(ctx, OPC_NEG_D, -1, rs, rt, 0); 2978 break; 2979 case NM_CVT_D_S: 2980 gen_farith(ctx, OPC_CVT_D_S, -1, rs, rt, 0); 2981 break; 2982 case NM_CVT_D_W: 2983 gen_farith(ctx, OPC_CVT_D_W, -1, rs, rt, 0); 2984 break; 2985 case NM_CVT_D_L: 2986 gen_farith(ctx, OPC_CVT_D_L, -1, rs, rt, 0); 2987 break; 2988 case NM_CVT_S_D: 2989 gen_farith(ctx, OPC_CVT_S_D, -1, rs, rt, 0); 2990 break; 2991 case NM_CVT_S_W: 2992 gen_farith(ctx, OPC_CVT_S_W, -1, rs, rt, 0); 2993 break; 2994 case NM_CVT_S_L: 2995 gen_farith(ctx, OPC_CVT_S_L, -1, rs, rt, 0); 2996 break; 2997 default: 2998 gen_reserved_instruction(ctx); 2999 break; 3000 } 3001 break; 3002 } 3003 break; 3004 } 3005 break; 3006 case NM_POOL32F_5: 3007 switch (extract32(ctx->opcode, 3, 3)) { 3008 case NM_CMP_CONDN_S: 3009 gen_r6_cmp_s(ctx, extract32(ctx->opcode, 6, 5), rt, rs, rd); 3010 break; 3011 case NM_CMP_CONDN_D: 3012 gen_r6_cmp_d(ctx, extract32(ctx->opcode, 6, 5), rt, rs, rd); 3013 break; 3014 default: 3015 gen_reserved_instruction(ctx); 3016 break; 3017 } 3018 break; 3019 default: 3020 gen_reserved_instruction(ctx); 3021 break; 3022 } 3023} 3024 3025static void gen_pool32a5_nanomips_insn(DisasContext *ctx, int opc, 3026 int rd, int rs, int rt) 3027{ 3028 int ret = rd; 3029 TCGv t0 = tcg_temp_new(); 3030 TCGv v1_t = tcg_temp_new(); 3031 TCGv v2_t = tcg_temp_new(); 3032 3033 gen_load_gpr(v1_t, rs); 3034 gen_load_gpr(v2_t, rt); 3035 3036 switch (opc) { 3037 case NM_CMP_EQ_PH: 3038 check_dsp(ctx); 3039 gen_helper_cmp_eq_ph(v1_t, v2_t, cpu_env); 3040 break; 3041 case NM_CMP_LT_PH: 3042 check_dsp(ctx); 3043 gen_helper_cmp_lt_ph(v1_t, v2_t, cpu_env); 3044 break; 3045 case NM_CMP_LE_PH: 3046 check_dsp(ctx); 3047 gen_helper_cmp_le_ph(v1_t, v2_t, cpu_env); 3048 break; 3049 case NM_CMPU_EQ_QB: 3050 check_dsp(ctx); 3051 gen_helper_cmpu_eq_qb(v1_t, v2_t, cpu_env); 3052 break; 3053 case NM_CMPU_LT_QB: 3054 check_dsp(ctx); 3055 gen_helper_cmpu_lt_qb(v1_t, v2_t, cpu_env); 3056 break; 3057 case NM_CMPU_LE_QB: 3058 check_dsp(ctx); 3059 gen_helper_cmpu_le_qb(v1_t, v2_t, cpu_env); 3060 break; 3061 case NM_CMPGU_EQ_QB: 3062 check_dsp(ctx); 3063 gen_helper_cmpgu_eq_qb(v1_t, v1_t, v2_t); 3064 gen_store_gpr(v1_t, ret); 3065 break; 3066 case NM_CMPGU_LT_QB: 3067 check_dsp(ctx); 3068 gen_helper_cmpgu_lt_qb(v1_t, v1_t, v2_t); 3069 gen_store_gpr(v1_t, ret); 3070 break; 3071 case NM_CMPGU_LE_QB: 3072 check_dsp(ctx); 3073 gen_helper_cmpgu_le_qb(v1_t, v1_t, v2_t); 3074 gen_store_gpr(v1_t, ret); 3075 break; 3076 case NM_CMPGDU_EQ_QB: 3077 check_dsp_r2(ctx); 3078 gen_helper_cmpgu_eq_qb(v1_t, v1_t, v2_t); 3079 tcg_gen_deposit_tl(cpu_dspctrl, cpu_dspctrl, v1_t, 24, 4); 3080 gen_store_gpr(v1_t, ret); 3081 break; 3082 case NM_CMPGDU_LT_QB: 3083 check_dsp_r2(ctx); 3084 gen_helper_cmpgu_lt_qb(v1_t, v1_t, v2_t); 3085 tcg_gen_deposit_tl(cpu_dspctrl, cpu_dspctrl, v1_t, 24, 4); 3086 gen_store_gpr(v1_t, ret); 3087 break; 3088 case NM_CMPGDU_LE_QB: 3089 check_dsp_r2(ctx); 3090 gen_helper_cmpgu_le_qb(v1_t, v1_t, v2_t); 3091 tcg_gen_deposit_tl(cpu_dspctrl, cpu_dspctrl, v1_t, 24, 4); 3092 gen_store_gpr(v1_t, ret); 3093 break; 3094 case NM_PACKRL_PH: 3095 check_dsp(ctx); 3096 gen_helper_packrl_ph(v1_t, v1_t, v2_t); 3097 gen_store_gpr(v1_t, ret); 3098 break; 3099 case NM_PICK_QB: 3100 check_dsp(ctx); 3101 gen_helper_pick_qb(v1_t, v1_t, v2_t, cpu_env); 3102 gen_store_gpr(v1_t, ret); 3103 break; 3104 case NM_PICK_PH: 3105 check_dsp(ctx); 3106 gen_helper_pick_ph(v1_t, v1_t, v2_t, cpu_env); 3107 gen_store_gpr(v1_t, ret); 3108 break; 3109 case NM_ADDQ_S_W: 3110 check_dsp(ctx); 3111 gen_helper_addq_s_w(v1_t, v1_t, v2_t, cpu_env); 3112 gen_store_gpr(v1_t, ret); 3113 break; 3114 case NM_SUBQ_S_W: 3115 check_dsp(ctx); 3116 gen_helper_subq_s_w(v1_t, v1_t, v2_t, cpu_env); 3117 gen_store_gpr(v1_t, ret); 3118 break; 3119 case NM_ADDSC: 3120 check_dsp(ctx); 3121 gen_helper_addsc(v1_t, v1_t, v2_t, cpu_env); 3122 gen_store_gpr(v1_t, ret); 3123 break; 3124 case NM_ADDWC: 3125 check_dsp(ctx); 3126 gen_helper_addwc(v1_t, v1_t, v2_t, cpu_env); 3127 gen_store_gpr(v1_t, ret); 3128 break; 3129 case NM_ADDQ_S_PH: 3130 check_dsp(ctx); 3131 switch (extract32(ctx->opcode, 10, 1)) { 3132 case 0: 3133 /* ADDQ_PH */ 3134 gen_helper_addq_ph(v1_t, v1_t, v2_t, cpu_env); 3135 gen_store_gpr(v1_t, ret); 3136 break; 3137 case 1: 3138 /* ADDQ_S_PH */ 3139 gen_helper_addq_s_ph(v1_t, v1_t, v2_t, cpu_env); 3140 gen_store_gpr(v1_t, ret); 3141 break; 3142 } 3143 break; 3144 case NM_ADDQH_R_PH: 3145 check_dsp_r2(ctx); 3146 switch (extract32(ctx->opcode, 10, 1)) { 3147 case 0: 3148 /* ADDQH_PH */ 3149 gen_helper_addqh_ph(v1_t, v1_t, v2_t); 3150 gen_store_gpr(v1_t, ret); 3151 break; 3152 case 1: 3153 /* ADDQH_R_PH */ 3154 gen_helper_addqh_r_ph(v1_t, v1_t, v2_t); 3155 gen_store_gpr(v1_t, ret); 3156 break; 3157 } 3158 break; 3159 case NM_ADDQH_R_W: 3160 check_dsp_r2(ctx); 3161 switch (extract32(ctx->opcode, 10, 1)) { 3162 case 0: 3163 /* ADDQH_W */ 3164 gen_helper_addqh_w(v1_t, v1_t, v2_t); 3165 gen_store_gpr(v1_t, ret); 3166 break; 3167 case 1: 3168 /* ADDQH_R_W */ 3169 gen_helper_addqh_r_w(v1_t, v1_t, v2_t); 3170 gen_store_gpr(v1_t, ret); 3171 break; 3172 } 3173 break; 3174 case NM_ADDU_S_QB: 3175 check_dsp(ctx); 3176 switch (extract32(ctx->opcode, 10, 1)) { 3177 case 0: 3178 /* ADDU_QB */ 3179 gen_helper_addu_qb(v1_t, v1_t, v2_t, cpu_env); 3180 gen_store_gpr(v1_t, ret); 3181 break; 3182 case 1: 3183 /* ADDU_S_QB */ 3184 gen_helper_addu_s_qb(v1_t, v1_t, v2_t, cpu_env); 3185 gen_store_gpr(v1_t, ret); 3186 break; 3187 } 3188 break; 3189 case NM_ADDU_S_PH: 3190 check_dsp_r2(ctx); 3191 switch (extract32(ctx->opcode, 10, 1)) { 3192 case 0: 3193 /* ADDU_PH */ 3194 gen_helper_addu_ph(v1_t, v1_t, v2_t, cpu_env); 3195 gen_store_gpr(v1_t, ret); 3196 break; 3197 case 1: 3198 /* ADDU_S_PH */ 3199 gen_helper_addu_s_ph(v1_t, v1_t, v2_t, cpu_env); 3200 gen_store_gpr(v1_t, ret); 3201 break; 3202 } 3203 break; 3204 case NM_ADDUH_R_QB: 3205 check_dsp_r2(ctx); 3206 switch (extract32(ctx->opcode, 10, 1)) { 3207 case 0: 3208 /* ADDUH_QB */ 3209 gen_helper_adduh_qb(v1_t, v1_t, v2_t); 3210 gen_store_gpr(v1_t, ret); 3211 break; 3212 case 1: 3213 /* ADDUH_R_QB */ 3214 gen_helper_adduh_r_qb(v1_t, v1_t, v2_t); 3215 gen_store_gpr(v1_t, ret); 3216 break; 3217 } 3218 break; 3219 case NM_SHRAV_R_PH: 3220 check_dsp(ctx); 3221 switch (extract32(ctx->opcode, 10, 1)) { 3222 case 0: 3223 /* SHRAV_PH */ 3224 gen_helper_shra_ph(v1_t, v1_t, v2_t); 3225 gen_store_gpr(v1_t, ret); 3226 break; 3227 case 1: 3228 /* SHRAV_R_PH */ 3229 gen_helper_shra_r_ph(v1_t, v1_t, v2_t); 3230 gen_store_gpr(v1_t, ret); 3231 break; 3232 } 3233 break; 3234 case NM_SHRAV_R_QB: 3235 check_dsp_r2(ctx); 3236 switch (extract32(ctx->opcode, 10, 1)) { 3237 case 0: 3238 /* SHRAV_QB */ 3239 gen_helper_shra_qb(v1_t, v1_t, v2_t); 3240 gen_store_gpr(v1_t, ret); 3241 break; 3242 case 1: 3243 /* SHRAV_R_QB */ 3244 gen_helper_shra_r_qb(v1_t, v1_t, v2_t); 3245 gen_store_gpr(v1_t, ret); 3246 break; 3247 } 3248 break; 3249 case NM_SUBQ_S_PH: 3250 check_dsp(ctx); 3251 switch (extract32(ctx->opcode, 10, 1)) { 3252 case 0: 3253 /* SUBQ_PH */ 3254 gen_helper_subq_ph(v1_t, v1_t, v2_t, cpu_env); 3255 gen_store_gpr(v1_t, ret); 3256 break; 3257 case 1: 3258 /* SUBQ_S_PH */ 3259 gen_helper_subq_s_ph(v1_t, v1_t, v2_t, cpu_env); 3260 gen_store_gpr(v1_t, ret); 3261 break; 3262 } 3263 break; 3264 case NM_SUBQH_R_PH: 3265 check_dsp_r2(ctx); 3266 switch (extract32(ctx->opcode, 10, 1)) { 3267 case 0: 3268 /* SUBQH_PH */ 3269 gen_helper_subqh_ph(v1_t, v1_t, v2_t); 3270 gen_store_gpr(v1_t, ret); 3271 break; 3272 case 1: 3273 /* SUBQH_R_PH */ 3274 gen_helper_subqh_r_ph(v1_t, v1_t, v2_t); 3275 gen_store_gpr(v1_t, ret); 3276 break; 3277 } 3278 break; 3279 case NM_SUBQH_R_W: 3280 check_dsp_r2(ctx); 3281 switch (extract32(ctx->opcode, 10, 1)) { 3282 case 0: 3283 /* SUBQH_W */ 3284 gen_helper_subqh_w(v1_t, v1_t, v2_t); 3285 gen_store_gpr(v1_t, ret); 3286 break; 3287 case 1: 3288 /* SUBQH_R_W */ 3289 gen_helper_subqh_r_w(v1_t, v1_t, v2_t); 3290 gen_store_gpr(v1_t, ret); 3291 break; 3292 } 3293 break; 3294 case NM_SUBU_S_QB: 3295 check_dsp(ctx); 3296 switch (extract32(ctx->opcode, 10, 1)) { 3297 case 0: 3298 /* SUBU_QB */ 3299 gen_helper_subu_qb(v1_t, v1_t, v2_t, cpu_env); 3300 gen_store_gpr(v1_t, ret); 3301 break; 3302 case 1: 3303 /* SUBU_S_QB */ 3304 gen_helper_subu_s_qb(v1_t, v1_t, v2_t, cpu_env); 3305 gen_store_gpr(v1_t, ret); 3306 break; 3307 } 3308 break; 3309 case NM_SUBU_S_PH: 3310 check_dsp_r2(ctx); 3311 switch (extract32(ctx->opcode, 10, 1)) { 3312 case 0: 3313 /* SUBU_PH */ 3314 gen_helper_subu_ph(v1_t, v1_t, v2_t, cpu_env); 3315 gen_store_gpr(v1_t, ret); 3316 break; 3317 case 1: 3318 /* SUBU_S_PH */ 3319 gen_helper_subu_s_ph(v1_t, v1_t, v2_t, cpu_env); 3320 gen_store_gpr(v1_t, ret); 3321 break; 3322 } 3323 break; 3324 case NM_SUBUH_R_QB: 3325 check_dsp_r2(ctx); 3326 switch (extract32(ctx->opcode, 10, 1)) { 3327 case 0: 3328 /* SUBUH_QB */ 3329 gen_helper_subuh_qb(v1_t, v1_t, v2_t); 3330 gen_store_gpr(v1_t, ret); 3331 break; 3332 case 1: 3333 /* SUBUH_R_QB */ 3334 gen_helper_subuh_r_qb(v1_t, v1_t, v2_t); 3335 gen_store_gpr(v1_t, ret); 3336 break; 3337 } 3338 break; 3339 case NM_SHLLV_S_PH: 3340 check_dsp(ctx); 3341 switch (extract32(ctx->opcode, 10, 1)) { 3342 case 0: 3343 /* SHLLV_PH */ 3344 gen_helper_shll_ph(v1_t, v1_t, v2_t, cpu_env); 3345 gen_store_gpr(v1_t, ret); 3346 break; 3347 case 1: 3348 /* SHLLV_S_PH */ 3349 gen_helper_shll_s_ph(v1_t, v1_t, v2_t, cpu_env); 3350 gen_store_gpr(v1_t, ret); 3351 break; 3352 } 3353 break; 3354 case NM_PRECR_SRA_R_PH_W: 3355 check_dsp_r2(ctx); 3356 switch (extract32(ctx->opcode, 10, 1)) { 3357 case 0: 3358 /* PRECR_SRA_PH_W */ 3359 { 3360 TCGv_i32 sa_t = tcg_constant_i32(rd); 3361 gen_helper_precr_sra_ph_w(v1_t, sa_t, v1_t, 3362 cpu_gpr[rt]); 3363 gen_store_gpr(v1_t, rt); 3364 } 3365 break; 3366 case 1: 3367 /* PRECR_SRA_R_PH_W */ 3368 { 3369 TCGv_i32 sa_t = tcg_constant_i32(rd); 3370 gen_helper_precr_sra_r_ph_w(v1_t, sa_t, v1_t, 3371 cpu_gpr[rt]); 3372 gen_store_gpr(v1_t, rt); 3373 } 3374 break; 3375 } 3376 break; 3377 case NM_MULEU_S_PH_QBL: 3378 check_dsp(ctx); 3379 gen_helper_muleu_s_ph_qbl(v1_t, v1_t, v2_t, cpu_env); 3380 gen_store_gpr(v1_t, ret); 3381 break; 3382 case NM_MULEU_S_PH_QBR: 3383 check_dsp(ctx); 3384 gen_helper_muleu_s_ph_qbr(v1_t, v1_t, v2_t, cpu_env); 3385 gen_store_gpr(v1_t, ret); 3386 break; 3387 case NM_MULQ_RS_PH: 3388 check_dsp(ctx); 3389 gen_helper_mulq_rs_ph(v1_t, v1_t, v2_t, cpu_env); 3390 gen_store_gpr(v1_t, ret); 3391 break; 3392 case NM_MULQ_S_PH: 3393 check_dsp_r2(ctx); 3394 gen_helper_mulq_s_ph(v1_t, v1_t, v2_t, cpu_env); 3395 gen_store_gpr(v1_t, ret); 3396 break; 3397 case NM_MULQ_RS_W: 3398 check_dsp_r2(ctx); 3399 gen_helper_mulq_rs_w(v1_t, v1_t, v2_t, cpu_env); 3400 gen_store_gpr(v1_t, ret); 3401 break; 3402 case NM_MULQ_S_W: 3403 check_dsp_r2(ctx); 3404 gen_helper_mulq_s_w(v1_t, v1_t, v2_t, cpu_env); 3405 gen_store_gpr(v1_t, ret); 3406 break; 3407 case NM_APPEND: 3408 check_dsp_r2(ctx); 3409 gen_load_gpr(t0, rs); 3410 if (rd != 0) { 3411 tcg_gen_deposit_tl(cpu_gpr[rt], t0, cpu_gpr[rt], rd, 32 - rd); 3412 } 3413 tcg_gen_ext32s_tl(cpu_gpr[rt], cpu_gpr[rt]); 3414 break; 3415 case NM_MODSUB: 3416 check_dsp(ctx); 3417 gen_helper_modsub(v1_t, v1_t, v2_t); 3418 gen_store_gpr(v1_t, ret); 3419 break; 3420 case NM_SHRAV_R_W: 3421 check_dsp(ctx); 3422 gen_helper_shra_r_w(v1_t, v1_t, v2_t); 3423 gen_store_gpr(v1_t, ret); 3424 break; 3425 case NM_SHRLV_PH: 3426 check_dsp_r2(ctx); 3427 gen_helper_shrl_ph(v1_t, v1_t, v2_t); 3428 gen_store_gpr(v1_t, ret); 3429 break; 3430 case NM_SHRLV_QB: 3431 check_dsp(ctx); 3432 gen_helper_shrl_qb(v1_t, v1_t, v2_t); 3433 gen_store_gpr(v1_t, ret); 3434 break; 3435 case NM_SHLLV_QB: 3436 check_dsp(ctx); 3437 gen_helper_shll_qb(v1_t, v1_t, v2_t, cpu_env); 3438 gen_store_gpr(v1_t, ret); 3439 break; 3440 case NM_SHLLV_S_W: 3441 check_dsp(ctx); 3442 gen_helper_shll_s_w(v1_t, v1_t, v2_t, cpu_env); 3443 gen_store_gpr(v1_t, ret); 3444 break; 3445 case NM_SHILO: 3446 check_dsp(ctx); 3447 { 3448 TCGv tv0 = tcg_temp_new(); 3449 TCGv tv1 = tcg_temp_new(); 3450 int16_t imm = extract32(ctx->opcode, 16, 7); 3451 3452 tcg_gen_movi_tl(tv0, rd >> 3); 3453 tcg_gen_movi_tl(tv1, imm); 3454 gen_helper_shilo(tv0, tv1, cpu_env); 3455 } 3456 break; 3457 case NM_MULEQ_S_W_PHL: 3458 check_dsp(ctx); 3459 gen_helper_muleq_s_w_phl(v1_t, v1_t, v2_t, cpu_env); 3460 gen_store_gpr(v1_t, ret); 3461 break; 3462 case NM_MULEQ_S_W_PHR: 3463 check_dsp(ctx); 3464 gen_helper_muleq_s_w_phr(v1_t, v1_t, v2_t, cpu_env); 3465 gen_store_gpr(v1_t, ret); 3466 break; 3467 case NM_MUL_S_PH: 3468 check_dsp_r2(ctx); 3469 switch (extract32(ctx->opcode, 10, 1)) { 3470 case 0: 3471 /* MUL_PH */ 3472 gen_helper_mul_ph(v1_t, v1_t, v2_t, cpu_env); 3473 gen_store_gpr(v1_t, ret); 3474 break; 3475 case 1: 3476 /* MUL_S_PH */ 3477 gen_helper_mul_s_ph(v1_t, v1_t, v2_t, cpu_env); 3478 gen_store_gpr(v1_t, ret); 3479 break; 3480 } 3481 break; 3482 case NM_PRECR_QB_PH: 3483 check_dsp_r2(ctx); 3484 gen_helper_precr_qb_ph(v1_t, v1_t, v2_t); 3485 gen_store_gpr(v1_t, ret); 3486 break; 3487 case NM_PRECRQ_QB_PH: 3488 check_dsp(ctx); 3489 gen_helper_precrq_qb_ph(v1_t, v1_t, v2_t); 3490 gen_store_gpr(v1_t, ret); 3491 break; 3492 case NM_PRECRQ_PH_W: 3493 check_dsp(ctx); 3494 gen_helper_precrq_ph_w(v1_t, v1_t, v2_t); 3495 gen_store_gpr(v1_t, ret); 3496 break; 3497 case NM_PRECRQ_RS_PH_W: 3498 check_dsp(ctx); 3499 gen_helper_precrq_rs_ph_w(v1_t, v1_t, v2_t, cpu_env); 3500 gen_store_gpr(v1_t, ret); 3501 break; 3502 case NM_PRECRQU_S_QB_PH: 3503 check_dsp(ctx); 3504 gen_helper_precrqu_s_qb_ph(v1_t, v1_t, v2_t, cpu_env); 3505 gen_store_gpr(v1_t, ret); 3506 break; 3507 case NM_SHRA_R_W: 3508 check_dsp(ctx); 3509 tcg_gen_movi_tl(t0, rd); 3510 gen_helper_shra_r_w(v1_t, t0, v1_t); 3511 gen_store_gpr(v1_t, rt); 3512 break; 3513 case NM_SHRA_R_PH: 3514 check_dsp(ctx); 3515 tcg_gen_movi_tl(t0, rd >> 1); 3516 switch (extract32(ctx->opcode, 10, 1)) { 3517 case 0: 3518 /* SHRA_PH */ 3519 gen_helper_shra_ph(v1_t, t0, v1_t); 3520 gen_store_gpr(v1_t, rt); 3521 break; 3522 case 1: 3523 /* SHRA_R_PH */ 3524 gen_helper_shra_r_ph(v1_t, t0, v1_t); 3525 gen_store_gpr(v1_t, rt); 3526 break; 3527 } 3528 break; 3529 case NM_SHLL_S_PH: 3530 check_dsp(ctx); 3531 tcg_gen_movi_tl(t0, rd >> 1); 3532 switch (extract32(ctx->opcode, 10, 2)) { 3533 case 0: 3534 /* SHLL_PH */ 3535 gen_helper_shll_ph(v1_t, t0, v1_t, cpu_env); 3536 gen_store_gpr(v1_t, rt); 3537 break; 3538 case 2: 3539 /* SHLL_S_PH */ 3540 gen_helper_shll_s_ph(v1_t, t0, v1_t, cpu_env); 3541 gen_store_gpr(v1_t, rt); 3542 break; 3543 default: 3544 gen_reserved_instruction(ctx); 3545 break; 3546 } 3547 break; 3548 case NM_SHLL_S_W: 3549 check_dsp(ctx); 3550 tcg_gen_movi_tl(t0, rd); 3551 gen_helper_shll_s_w(v1_t, t0, v1_t, cpu_env); 3552 gen_store_gpr(v1_t, rt); 3553 break; 3554 case NM_REPL_PH: 3555 check_dsp(ctx); 3556 { 3557 int16_t imm; 3558 imm = sextract32(ctx->opcode, 11, 11); 3559 imm = (int16_t)(imm << 6) >> 6; 3560 if (rt != 0) { 3561 tcg_gen_movi_tl(cpu_gpr[rt], dup_const(MO_16, imm)); 3562 } 3563 } 3564 break; 3565 default: 3566 gen_reserved_instruction(ctx); 3567 break; 3568 } 3569} 3570 3571static int decode_nanomips_32_48_opc(CPUMIPSState *env, DisasContext *ctx) 3572{ 3573 uint16_t insn; 3574 uint32_t op; 3575 int rt, rs, rd; 3576 int offset; 3577 int imm; 3578 3579 insn = translator_lduw(env, &ctx->base, ctx->base.pc_next + 2); 3580 ctx->opcode = (ctx->opcode << 16) | insn; 3581 3582 rt = extract32(ctx->opcode, 21, 5); 3583 rs = extract32(ctx->opcode, 16, 5); 3584 rd = extract32(ctx->opcode, 11, 5); 3585 3586 op = extract32(ctx->opcode, 26, 6); 3587 switch (op) { 3588 case NM_P_ADDIU: 3589 if (rt == 0) { 3590 /* P.RI */ 3591 switch (extract32(ctx->opcode, 19, 2)) { 3592 case NM_SIGRIE: 3593 default: 3594 gen_reserved_instruction(ctx); 3595 break; 3596 case NM_P_SYSCALL: 3597 if ((extract32(ctx->opcode, 18, 1)) == NM_SYSCALL) { 3598 generate_exception_end(ctx, EXCP_SYSCALL); 3599 } else { 3600 gen_reserved_instruction(ctx); 3601 } 3602 break; 3603 case NM_BREAK: 3604 generate_exception_end(ctx, EXCP_BREAK); 3605 break; 3606 case NM_SDBBP: 3607 if (is_uhi(ctx, extract32(ctx->opcode, 0, 19))) { 3608 ctx->base.is_jmp = DISAS_SEMIHOST; 3609 } else { 3610 if (ctx->hflags & MIPS_HFLAG_SBRI) { 3611 gen_reserved_instruction(ctx); 3612 } else { 3613 generate_exception_end(ctx, EXCP_DBp); 3614 } 3615 } 3616 break; 3617 } 3618 } else { 3619 /* NM_ADDIU */ 3620 imm = extract32(ctx->opcode, 0, 16); 3621 if (rs != 0) { 3622 tcg_gen_addi_tl(cpu_gpr[rt], cpu_gpr[rs], imm); 3623 } else { 3624 tcg_gen_movi_tl(cpu_gpr[rt], imm); 3625 } 3626 tcg_gen_ext32s_tl(cpu_gpr[rt], cpu_gpr[rt]); 3627 } 3628 break; 3629 case NM_ADDIUPC: 3630 if (rt != 0) { 3631 offset = sextract32(ctx->opcode, 0, 1) << 21 | 3632 extract32(ctx->opcode, 1, 20) << 1; 3633 target_long addr = addr_add(ctx, ctx->base.pc_next + 4, offset); 3634 tcg_gen_movi_tl(cpu_gpr[rt], addr); 3635 } 3636 break; 3637 case NM_POOL32A: 3638 switch (ctx->opcode & 0x07) { 3639 case NM_POOL32A0: 3640 gen_pool32a0_nanomips_insn(env, ctx); 3641 break; 3642 case NM_POOL32A5: 3643 { 3644 int32_t op1 = extract32(ctx->opcode, 3, 7); 3645 gen_pool32a5_nanomips_insn(ctx, op1, rd, rs, rt); 3646 } 3647 break; 3648 case NM_POOL32A7: 3649 switch (extract32(ctx->opcode, 3, 3)) { 3650 case NM_P_LSX: 3651 gen_p_lsx(ctx, rd, rs, rt); 3652 break; 3653 case NM_LSA: 3654 /* 3655 * In nanoMIPS, the shift field directly encodes the shift 3656 * amount, meaning that the supported shift values are in 3657 * the range 0 to 3 (instead of 1 to 4 in MIPSR6). 3658 */ 3659 gen_lsa(ctx, rd, rt, rs, extract32(ctx->opcode, 9, 2) - 1); 3660 break; 3661 case NM_EXTW: 3662 gen_ext(ctx, 32, rd, rs, rt, extract32(ctx->opcode, 6, 5)); 3663 break; 3664 case NM_POOL32AXF: 3665 gen_pool32axf_nanomips_insn(env, ctx); 3666 break; 3667 default: 3668 gen_reserved_instruction(ctx); 3669 break; 3670 } 3671 break; 3672 default: 3673 gen_reserved_instruction(ctx); 3674 break; 3675 } 3676 break; 3677 case NM_P_GP_W: 3678 switch (ctx->opcode & 0x03) { 3679 case NM_ADDIUGP_W: 3680 if (rt != 0) { 3681 offset = extract32(ctx->opcode, 0, 21); 3682 gen_op_addr_addi(ctx, cpu_gpr[rt], cpu_gpr[28], offset); 3683 } 3684 break; 3685 case NM_LWGP: 3686 gen_ld(ctx, OPC_LW, rt, 28, extract32(ctx->opcode, 2, 19) << 2); 3687 break; 3688 case NM_SWGP: 3689 gen_st(ctx, OPC_SW, rt, 28, extract32(ctx->opcode, 2, 19) << 2); 3690 break; 3691 default: 3692 gen_reserved_instruction(ctx); 3693 break; 3694 } 3695 break; 3696 case NM_P48I: 3697 { 3698 insn = translator_lduw(env, &ctx->base, ctx->base.pc_next + 4); 3699 target_long addr_off = extract32(ctx->opcode, 0, 16) | insn << 16; 3700 switch (extract32(ctx->opcode, 16, 5)) { 3701 case NM_LI48: 3702 check_nms(ctx); 3703 if (rt != 0) { 3704 tcg_gen_movi_tl(cpu_gpr[rt], addr_off); 3705 } 3706 break; 3707 case NM_ADDIU48: 3708 check_nms(ctx); 3709 if (rt != 0) { 3710 tcg_gen_addi_tl(cpu_gpr[rt], cpu_gpr[rt], addr_off); 3711 tcg_gen_ext32s_tl(cpu_gpr[rt], cpu_gpr[rt]); 3712 } 3713 break; 3714 case NM_ADDIUGP48: 3715 check_nms(ctx); 3716 if (rt != 0) { 3717 gen_op_addr_addi(ctx, cpu_gpr[rt], cpu_gpr[28], addr_off); 3718 } 3719 break; 3720 case NM_ADDIUPC48: 3721 check_nms(ctx); 3722 if (rt != 0) { 3723 target_long addr = addr_add(ctx, ctx->base.pc_next + 6, 3724 addr_off); 3725 3726 tcg_gen_movi_tl(cpu_gpr[rt], addr); 3727 } 3728 break; 3729 case NM_LWPC48: 3730 check_nms(ctx); 3731 if (rt != 0) { 3732 TCGv t0; 3733 t0 = tcg_temp_new(); 3734 3735 target_long addr = addr_add(ctx, ctx->base.pc_next + 6, 3736 addr_off); 3737 3738 tcg_gen_movi_tl(t0, addr); 3739 tcg_gen_qemu_ld_tl(cpu_gpr[rt], t0, ctx->mem_idx, 3740 MO_TESL | ctx->default_tcg_memop_mask); 3741 } 3742 break; 3743 case NM_SWPC48: 3744 check_nms(ctx); 3745 { 3746 TCGv t0, t1; 3747 t0 = tcg_temp_new(); 3748 t1 = tcg_temp_new(); 3749 3750 target_long addr = addr_add(ctx, ctx->base.pc_next + 6, 3751 addr_off); 3752 3753 tcg_gen_movi_tl(t0, addr); 3754 gen_load_gpr(t1, rt); 3755 3756 tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, 3757 MO_TEUL | ctx->default_tcg_memop_mask); 3758 } 3759 break; 3760 default: 3761 gen_reserved_instruction(ctx); 3762 break; 3763 } 3764 return 6; 3765 } 3766 case NM_P_U12: 3767 switch (extract32(ctx->opcode, 12, 4)) { 3768 case NM_ORI: 3769 gen_logic_imm(ctx, OPC_ORI, rt, rs, extract32(ctx->opcode, 0, 12)); 3770 break; 3771 case NM_XORI: 3772 gen_logic_imm(ctx, OPC_XORI, rt, rs, extract32(ctx->opcode, 0, 12)); 3773 break; 3774 case NM_ANDI: 3775 gen_logic_imm(ctx, OPC_ANDI, rt, rs, extract32(ctx->opcode, 0, 12)); 3776 break; 3777 case NM_P_SR: 3778 switch (extract32(ctx->opcode, 20, 1)) { 3779 case NM_PP_SR: 3780 switch (ctx->opcode & 3) { 3781 case NM_SAVE: 3782 gen_save(ctx, rt, extract32(ctx->opcode, 16, 4), 3783 extract32(ctx->opcode, 2, 1), 3784 extract32(ctx->opcode, 3, 9) << 3); 3785 break; 3786 case NM_RESTORE: 3787 case NM_RESTORE_JRC: 3788 gen_restore(ctx, rt, extract32(ctx->opcode, 16, 4), 3789 extract32(ctx->opcode, 2, 1), 3790 extract32(ctx->opcode, 3, 9) << 3); 3791 if ((ctx->opcode & 3) == NM_RESTORE_JRC) { 3792 gen_compute_branch_nm(ctx, OPC_JR, 2, 31, 0, 0); 3793 } 3794 break; 3795 default: 3796 gen_reserved_instruction(ctx); 3797 break; 3798 } 3799 break; 3800 case NM_P_SR_F: 3801 gen_reserved_instruction(ctx); 3802 break; 3803 } 3804 break; 3805 case NM_SLTI: 3806 gen_slt_imm(ctx, OPC_SLTI, rt, rs, extract32(ctx->opcode, 0, 12)); 3807 break; 3808 case NM_SLTIU: 3809 gen_slt_imm(ctx, OPC_SLTIU, rt, rs, extract32(ctx->opcode, 0, 12)); 3810 break; 3811 case NM_SEQI: 3812 { 3813 TCGv t0 = tcg_temp_new(); 3814 3815 imm = extract32(ctx->opcode, 0, 12); 3816 gen_load_gpr(t0, rs); 3817 tcg_gen_setcondi_tl(TCG_COND_EQ, t0, t0, imm); 3818 gen_store_gpr(t0, rt); 3819 } 3820 break; 3821 case NM_ADDIUNEG: 3822 imm = (int16_t) extract32(ctx->opcode, 0, 12); 3823 gen_arith_imm(ctx, OPC_ADDIU, rt, rs, -imm); 3824 break; 3825 case NM_P_SHIFT: 3826 { 3827 int shift = extract32(ctx->opcode, 0, 5); 3828 switch (extract32(ctx->opcode, 5, 4)) { 3829 case NM_P_SLL: 3830 if (rt == 0 && shift == 0) { 3831 /* NOP */ 3832 } else if (rt == 0 && shift == 3) { 3833 /* EHB - treat as NOP */ 3834 } else if (rt == 0 && shift == 5) { 3835 /* PAUSE - treat as NOP */ 3836 } else if (rt == 0 && shift == 6) { 3837 /* SYNC */ 3838 gen_sync(extract32(ctx->opcode, 16, 5)); 3839 } else { 3840 /* SLL */ 3841 gen_shift_imm(ctx, OPC_SLL, rt, rs, 3842 extract32(ctx->opcode, 0, 5)); 3843 } 3844 break; 3845 case NM_SRL: 3846 gen_shift_imm(ctx, OPC_SRL, rt, rs, 3847 extract32(ctx->opcode, 0, 5)); 3848 break; 3849 case NM_SRA: 3850 gen_shift_imm(ctx, OPC_SRA, rt, rs, 3851 extract32(ctx->opcode, 0, 5)); 3852 break; 3853 case NM_ROTR: 3854 gen_shift_imm(ctx, OPC_ROTR, rt, rs, 3855 extract32(ctx->opcode, 0, 5)); 3856 break; 3857 default: 3858 gen_reserved_instruction(ctx); 3859 break; 3860 } 3861 } 3862 break; 3863 case NM_P_ROTX: 3864 check_nms(ctx); 3865 if (rt != 0) { 3866 TCGv t0 = tcg_temp_new(); 3867 TCGv_i32 shift = 3868 tcg_constant_i32(extract32(ctx->opcode, 0, 5)); 3869 TCGv_i32 shiftx = 3870 tcg_constant_i32(extract32(ctx->opcode, 7, 4) << 1); 3871 TCGv_i32 stripe = 3872 tcg_constant_i32(extract32(ctx->opcode, 6, 1)); 3873 3874 gen_load_gpr(t0, rs); 3875 gen_helper_rotx(cpu_gpr[rt], t0, shift, shiftx, stripe); 3876 } 3877 break; 3878 case NM_P_INS: 3879 switch (((ctx->opcode >> 10) & 2) | 3880 (extract32(ctx->opcode, 5, 1))) { 3881 case NM_INS: 3882 check_nms(ctx); 3883 gen_bitops(ctx, OPC_INS, rt, rs, extract32(ctx->opcode, 0, 5), 3884 extract32(ctx->opcode, 6, 5)); 3885 break; 3886 default: 3887 gen_reserved_instruction(ctx); 3888 break; 3889 } 3890 break; 3891 case NM_P_EXT: 3892 switch (((ctx->opcode >> 10) & 2) | 3893 (extract32(ctx->opcode, 5, 1))) { 3894 case NM_EXT: 3895 check_nms(ctx); 3896 gen_bitops(ctx, OPC_EXT, rt, rs, extract32(ctx->opcode, 0, 5), 3897 extract32(ctx->opcode, 6, 5)); 3898 break; 3899 default: 3900 gen_reserved_instruction(ctx); 3901 break; 3902 } 3903 break; 3904 default: 3905 gen_reserved_instruction(ctx); 3906 break; 3907 } 3908 break; 3909 case NM_POOL32F: 3910 gen_pool32f_nanomips_insn(ctx); 3911 break; 3912 case NM_POOL32S: 3913 break; 3914 case NM_P_LUI: 3915 switch (extract32(ctx->opcode, 1, 1)) { 3916 case NM_LUI: 3917 if (rt != 0) { 3918 tcg_gen_movi_tl(cpu_gpr[rt], 3919 sextract32(ctx->opcode, 0, 1) << 31 | 3920 extract32(ctx->opcode, 2, 10) << 21 | 3921 extract32(ctx->opcode, 12, 9) << 12); 3922 } 3923 break; 3924 case NM_ALUIPC: 3925 if (rt != 0) { 3926 offset = sextract32(ctx->opcode, 0, 1) << 31 | 3927 extract32(ctx->opcode, 2, 10) << 21 | 3928 extract32(ctx->opcode, 12, 9) << 12; 3929 target_long addr; 3930 addr = ~0xFFF & addr_add(ctx, ctx->base.pc_next + 4, offset); 3931 tcg_gen_movi_tl(cpu_gpr[rt], addr); 3932 } 3933 break; 3934 } 3935 break; 3936 case NM_P_GP_BH: 3937 { 3938 uint32_t u = extract32(ctx->opcode, 0, 18); 3939 3940 switch (extract32(ctx->opcode, 18, 3)) { 3941 case NM_LBGP: 3942 gen_ld(ctx, OPC_LB, rt, 28, u); 3943 break; 3944 case NM_SBGP: 3945 gen_st(ctx, OPC_SB, rt, 28, u); 3946 break; 3947 case NM_LBUGP: 3948 gen_ld(ctx, OPC_LBU, rt, 28, u); 3949 break; 3950 case NM_ADDIUGP_B: 3951 if (rt != 0) { 3952 gen_op_addr_addi(ctx, cpu_gpr[rt], cpu_gpr[28], u); 3953 } 3954 break; 3955 case NM_P_GP_LH: 3956 u &= ~1; 3957 switch (ctx->opcode & 1) { 3958 case NM_LHGP: 3959 gen_ld(ctx, OPC_LH, rt, 28, u); 3960 break; 3961 case NM_LHUGP: 3962 gen_ld(ctx, OPC_LHU, rt, 28, u); 3963 break; 3964 } 3965 break; 3966 case NM_P_GP_SH: 3967 u &= ~1; 3968 switch (ctx->opcode & 1) { 3969 case NM_SHGP: 3970 gen_st(ctx, OPC_SH, rt, 28, u); 3971 break; 3972 default: 3973 gen_reserved_instruction(ctx); 3974 break; 3975 } 3976 break; 3977 case NM_P_GP_CP1: 3978 u &= ~0x3; 3979 switch (ctx->opcode & 0x3) { 3980 case NM_LWC1GP: 3981 gen_cop1_ldst(ctx, OPC_LWC1, rt, 28, u); 3982 break; 3983 case NM_LDC1GP: 3984 gen_cop1_ldst(ctx, OPC_LDC1, rt, 28, u); 3985 break; 3986 case NM_SWC1GP: 3987 gen_cop1_ldst(ctx, OPC_SWC1, rt, 28, u); 3988 break; 3989 case NM_SDC1GP: 3990 gen_cop1_ldst(ctx, OPC_SDC1, rt, 28, u); 3991 break; 3992 } 3993 break; 3994 default: 3995 gen_reserved_instruction(ctx); 3996 break; 3997 } 3998 } 3999 break; 4000 case NM_P_LS_U12: 4001 { 4002 uint32_t u = extract32(ctx->opcode, 0, 12); 4003 4004 switch (extract32(ctx->opcode, 12, 4)) { 4005 case NM_P_PREFU12: 4006 if (rt == 31) { 4007 /* SYNCI */ 4008 /* 4009 * Break the TB to be able to sync copied instructions 4010 * immediately. 4011 */ 4012 ctx->base.is_jmp = DISAS_STOP; 4013 } else { 4014 /* PREF */ 4015 /* Treat as NOP. */ 4016 } 4017 break; 4018 case NM_LB: 4019 gen_ld(ctx, OPC_LB, rt, rs, u); 4020 break; 4021 case NM_LH: 4022 gen_ld(ctx, OPC_LH, rt, rs, u); 4023 break; 4024 case NM_LW: 4025 gen_ld(ctx, OPC_LW, rt, rs, u); 4026 break; 4027 case NM_LBU: 4028 gen_ld(ctx, OPC_LBU, rt, rs, u); 4029 break; 4030 case NM_LHU: 4031 gen_ld(ctx, OPC_LHU, rt, rs, u); 4032 break; 4033 case NM_SB: 4034 gen_st(ctx, OPC_SB, rt, rs, u); 4035 break; 4036 case NM_SH: 4037 gen_st(ctx, OPC_SH, rt, rs, u); 4038 break; 4039 case NM_SW: 4040 gen_st(ctx, OPC_SW, rt, rs, u); 4041 break; 4042 case NM_LWC1: 4043 gen_cop1_ldst(ctx, OPC_LWC1, rt, rs, u); 4044 break; 4045 case NM_LDC1: 4046 gen_cop1_ldst(ctx, OPC_LDC1, rt, rs, u); 4047 break; 4048 case NM_SWC1: 4049 gen_cop1_ldst(ctx, OPC_SWC1, rt, rs, u); 4050 break; 4051 case NM_SDC1: 4052 gen_cop1_ldst(ctx, OPC_SDC1, rt, rs, u); 4053 break; 4054 default: 4055 gen_reserved_instruction(ctx); 4056 break; 4057 } 4058 } 4059 break; 4060 case NM_P_LS_S9: 4061 { 4062 int32_t s = (sextract32(ctx->opcode, 15, 1) << 8) | 4063 extract32(ctx->opcode, 0, 8); 4064 4065 switch (extract32(ctx->opcode, 8, 3)) { 4066 case NM_P_LS_S0: 4067 switch (extract32(ctx->opcode, 11, 4)) { 4068 case NM_LBS9: 4069 gen_ld(ctx, OPC_LB, rt, rs, s); 4070 break; 4071 case NM_LHS9: 4072 gen_ld(ctx, OPC_LH, rt, rs, s); 4073 break; 4074 case NM_LWS9: 4075 gen_ld(ctx, OPC_LW, rt, rs, s); 4076 break; 4077 case NM_LBUS9: 4078 gen_ld(ctx, OPC_LBU, rt, rs, s); 4079 break; 4080 case NM_LHUS9: 4081 gen_ld(ctx, OPC_LHU, rt, rs, s); 4082 break; 4083 case NM_SBS9: 4084 gen_st(ctx, OPC_SB, rt, rs, s); 4085 break; 4086 case NM_SHS9: 4087 gen_st(ctx, OPC_SH, rt, rs, s); 4088 break; 4089 case NM_SWS9: 4090 gen_st(ctx, OPC_SW, rt, rs, s); 4091 break; 4092 case NM_LWC1S9: 4093 gen_cop1_ldst(ctx, OPC_LWC1, rt, rs, s); 4094 break; 4095 case NM_LDC1S9: 4096 gen_cop1_ldst(ctx, OPC_LDC1, rt, rs, s); 4097 break; 4098 case NM_SWC1S9: 4099 gen_cop1_ldst(ctx, OPC_SWC1, rt, rs, s); 4100 break; 4101 case NM_SDC1S9: 4102 gen_cop1_ldst(ctx, OPC_SDC1, rt, rs, s); 4103 break; 4104 case NM_P_PREFS9: 4105 if (rt == 31) { 4106 /* SYNCI */ 4107 /* 4108 * Break the TB to be able to sync copied instructions 4109 * immediately. 4110 */ 4111 ctx->base.is_jmp = DISAS_STOP; 4112 } else { 4113 /* PREF */ 4114 /* Treat as NOP. */ 4115 } 4116 break; 4117 default: 4118 gen_reserved_instruction(ctx); 4119 break; 4120 } 4121 break; 4122 case NM_P_LS_S1: 4123 switch (extract32(ctx->opcode, 11, 4)) { 4124 case NM_UALH: 4125 case NM_UASH: 4126 check_nms(ctx); 4127 { 4128 TCGv t0 = tcg_temp_new(); 4129 TCGv t1 = tcg_temp_new(); 4130 4131 gen_base_offset_addr(ctx, t0, rs, s); 4132 4133 switch (extract32(ctx->opcode, 11, 4)) { 4134 case NM_UALH: 4135 tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TESW | 4136 MO_UNALN); 4137 gen_store_gpr(t0, rt); 4138 break; 4139 case NM_UASH: 4140 gen_load_gpr(t1, rt); 4141 tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUW | 4142 MO_UNALN); 4143 break; 4144 } 4145 } 4146 break; 4147 case NM_P_LL: 4148 switch (ctx->opcode & 0x03) { 4149 case NM_LL: 4150 gen_ld(ctx, OPC_LL, rt, rs, s); 4151 break; 4152 case NM_LLWP: 4153 check_xnp(ctx); 4154 gen_llwp(ctx, rs, 0, rt, extract32(ctx->opcode, 3, 5)); 4155 break; 4156 default: 4157 gen_reserved_instruction(ctx); 4158 break; 4159 } 4160 break; 4161 case NM_P_SC: 4162 switch (ctx->opcode & 0x03) { 4163 case NM_SC: 4164 gen_st_cond(ctx, rt, rs, s, MO_TESL, false); 4165 break; 4166 case NM_SCWP: 4167 check_xnp(ctx); 4168 gen_scwp(ctx, rs, 0, rt, extract32(ctx->opcode, 3, 5), 4169 false); 4170 break; 4171 default: 4172 gen_reserved_instruction(ctx); 4173 break; 4174 } 4175 break; 4176 case NM_CACHE: 4177 check_cp0_enabled(ctx); 4178 if (ctx->hflags & MIPS_HFLAG_ITC_CACHE) { 4179 gen_cache_operation(ctx, rt, rs, s); 4180 } 4181 break; 4182 default: 4183 gen_reserved_instruction(ctx); 4184 break; 4185 } 4186 break; 4187 case NM_P_LS_E0: 4188 switch (extract32(ctx->opcode, 11, 4)) { 4189 case NM_LBE: 4190 check_eva(ctx); 4191 check_cp0_enabled(ctx); 4192 gen_ld(ctx, OPC_LBE, rt, rs, s); 4193 break; 4194 case NM_SBE: 4195 check_eva(ctx); 4196 check_cp0_enabled(ctx); 4197 gen_st(ctx, OPC_SBE, rt, rs, s); 4198 break; 4199 case NM_LBUE: 4200 check_eva(ctx); 4201 check_cp0_enabled(ctx); 4202 gen_ld(ctx, OPC_LBUE, rt, rs, s); 4203 break; 4204 case NM_P_PREFE: 4205 if (rt == 31) { 4206 /* case NM_SYNCIE */ 4207 check_eva(ctx); 4208 check_cp0_enabled(ctx); 4209 /* 4210 * Break the TB to be able to sync copied instructions 4211 * immediately. 4212 */ 4213 ctx->base.is_jmp = DISAS_STOP; 4214 } else { 4215 /* case NM_PREFE */ 4216 check_eva(ctx); 4217 check_cp0_enabled(ctx); 4218 /* Treat as NOP. */ 4219 } 4220 break; 4221 case NM_LHE: 4222 check_eva(ctx); 4223 check_cp0_enabled(ctx); 4224 gen_ld(ctx, OPC_LHE, rt, rs, s); 4225 break; 4226 case NM_SHE: 4227 check_eva(ctx); 4228 check_cp0_enabled(ctx); 4229 gen_st(ctx, OPC_SHE, rt, rs, s); 4230 break; 4231 case NM_LHUE: 4232 check_eva(ctx); 4233 check_cp0_enabled(ctx); 4234 gen_ld(ctx, OPC_LHUE, rt, rs, s); 4235 break; 4236 case NM_CACHEE: 4237 check_eva(ctx); 4238 check_cp0_enabled(ctx); 4239 check_nms_dl_il_sl_tl_l2c(ctx); 4240 gen_cache_operation(ctx, rt, rs, s); 4241 break; 4242 case NM_LWE: 4243 check_eva(ctx); 4244 check_cp0_enabled(ctx); 4245 gen_ld(ctx, OPC_LWE, rt, rs, s); 4246 break; 4247 case NM_SWE: 4248 check_eva(ctx); 4249 check_cp0_enabled(ctx); 4250 gen_st(ctx, OPC_SWE, rt, rs, s); 4251 break; 4252 case NM_P_LLE: 4253 switch (extract32(ctx->opcode, 2, 2)) { 4254 case NM_LLE: 4255 check_xnp(ctx); 4256 check_eva(ctx); 4257 check_cp0_enabled(ctx); 4258 gen_ld(ctx, OPC_LLE, rt, rs, s); 4259 break; 4260 case NM_LLWPE: 4261 check_xnp(ctx); 4262 check_eva(ctx); 4263 check_cp0_enabled(ctx); 4264 gen_llwp(ctx, rs, 0, rt, extract32(ctx->opcode, 3, 5)); 4265 break; 4266 default: 4267 gen_reserved_instruction(ctx); 4268 break; 4269 } 4270 break; 4271 case NM_P_SCE: 4272 switch (extract32(ctx->opcode, 2, 2)) { 4273 case NM_SCE: 4274 check_xnp(ctx); 4275 check_eva(ctx); 4276 check_cp0_enabled(ctx); 4277 gen_st_cond(ctx, rt, rs, s, MO_TESL, true); 4278 break; 4279 case NM_SCWPE: 4280 check_xnp(ctx); 4281 check_eva(ctx); 4282 check_cp0_enabled(ctx); 4283 gen_scwp(ctx, rs, 0, rt, extract32(ctx->opcode, 3, 5), 4284 true); 4285 break; 4286 default: 4287 gen_reserved_instruction(ctx); 4288 break; 4289 } 4290 break; 4291 default: 4292 gen_reserved_instruction(ctx); 4293 break; 4294 } 4295 break; 4296 case NM_P_LS_WM: 4297 case NM_P_LS_UAWM: 4298 check_nms(ctx); 4299 { 4300 int count = extract32(ctx->opcode, 12, 3); 4301 int counter = 0; 4302 4303 offset = sextract32(ctx->opcode, 15, 1) << 8 | 4304 extract32(ctx->opcode, 0, 8); 4305 TCGv va = tcg_temp_new(); 4306 TCGv t1 = tcg_temp_new(); 4307 MemOp memop = (extract32(ctx->opcode, 8, 3)) == 4308 NM_P_LS_UAWM ? MO_UNALN : MO_ALIGN; 4309 4310 count = (count == 0) ? 8 : count; 4311 while (counter != count) { 4312 int this_rt = ((rt + counter) & 0x1f) | (rt & 0x10); 4313 int this_offset = offset + (counter << 2); 4314 4315 gen_base_offset_addr(ctx, va, rs, this_offset); 4316 4317 switch (extract32(ctx->opcode, 11, 1)) { 4318 case NM_LWM: 4319 tcg_gen_qemu_ld_tl(t1, va, ctx->mem_idx, 4320 memop | MO_TESL); 4321 gen_store_gpr(t1, this_rt); 4322 if ((this_rt == rs) && 4323 (counter != (count - 1))) { 4324 /* UNPREDICTABLE */ 4325 } 4326 break; 4327 case NM_SWM: 4328 this_rt = (rt == 0) ? 0 : this_rt; 4329 gen_load_gpr(t1, this_rt); 4330 tcg_gen_qemu_st_tl(t1, va, ctx->mem_idx, 4331 memop | MO_TEUL); 4332 break; 4333 } 4334 counter++; 4335 } 4336 } 4337 break; 4338 default: 4339 gen_reserved_instruction(ctx); 4340 break; 4341 } 4342 } 4343 break; 4344 case NM_MOVE_BALC: 4345 check_nms(ctx); 4346 { 4347 TCGv t0 = tcg_temp_new(); 4348 int32_t s = sextract32(ctx->opcode, 0, 1) << 21 | 4349 extract32(ctx->opcode, 1, 20) << 1; 4350 rd = (extract32(ctx->opcode, 24, 1)) == 0 ? 4 : 5; 4351 rt = decode_gpr_gpr4_zero(extract32(ctx->opcode, 25, 1) << 3 | 4352 extract32(ctx->opcode, 21, 3)); 4353 gen_load_gpr(t0, rt); 4354 tcg_gen_mov_tl(cpu_gpr[rd], t0); 4355 gen_compute_branch_nm(ctx, OPC_BGEZAL, 4, 0, 0, s); 4356 } 4357 break; 4358 case NM_P_BAL: 4359 { 4360 int32_t s = sextract32(ctx->opcode, 0, 1) << 25 | 4361 extract32(ctx->opcode, 1, 24) << 1; 4362 4363 if ((extract32(ctx->opcode, 25, 1)) == 0) { 4364 /* BC */ 4365 gen_compute_branch_nm(ctx, OPC_BEQ, 4, 0, 0, s); 4366 } else { 4367 /* BALC */ 4368 gen_compute_branch_nm(ctx, OPC_BGEZAL, 4, 0, 0, s); 4369 } 4370 } 4371 break; 4372 case NM_P_J: 4373 switch (extract32(ctx->opcode, 12, 4)) { 4374 case NM_JALRC: 4375 case NM_JALRC_HB: 4376 gen_compute_branch_nm(ctx, OPC_JALR, 4, rs, rt, 0); 4377 break; 4378 case NM_P_BALRSC: 4379 gen_compute_nanomips_pbalrsc_branch(ctx, rs, rt); 4380 break; 4381 default: 4382 gen_reserved_instruction(ctx); 4383 break; 4384 } 4385 break; 4386 case NM_P_BR1: 4387 { 4388 int32_t s = sextract32(ctx->opcode, 0, 1) << 14 | 4389 extract32(ctx->opcode, 1, 13) << 1; 4390 switch (extract32(ctx->opcode, 14, 2)) { 4391 case NM_BEQC: 4392 check_nms(ctx); 4393 gen_compute_branch_nm(ctx, OPC_BEQ, 4, rs, rt, s); 4394 break; 4395 case NM_P_BR3A: 4396 s = sextract32(ctx->opcode, 0, 1) << 14 | 4397 extract32(ctx->opcode, 1, 13) << 1; 4398 switch (extract32(ctx->opcode, 16, 5)) { 4399 case NM_BC1EQZC: 4400 check_cp1_enabled(ctx); 4401 gen_compute_branch_cp1_nm(ctx, OPC_BC1EQZ, rt, s); 4402 break; 4403 case NM_BC1NEZC: 4404 check_cp1_enabled(ctx); 4405 gen_compute_branch_cp1_nm(ctx, OPC_BC1NEZ, rt, s); 4406 break; 4407 case NM_BPOSGE32C: 4408 check_dsp_r3(ctx); 4409 { 4410 imm = extract32(ctx->opcode, 1, 13) 4411 | extract32(ctx->opcode, 0, 1) << 13; 4412 4413 gen_compute_branch_nm(ctx, OPC_BPOSGE32, 4, -1, -2, 4414 imm << 1); 4415 } 4416 break; 4417 default: 4418 gen_reserved_instruction(ctx); 4419 break; 4420 } 4421 break; 4422 case NM_BGEC: 4423 if (rs == rt) { 4424 gen_compute_compact_branch_nm(ctx, OPC_BC, rs, rt, s); 4425 } else { 4426 gen_compute_compact_branch_nm(ctx, OPC_BGEC, rs, rt, s); 4427 } 4428 break; 4429 case NM_BGEUC: 4430 if (rs == rt || rt == 0) { 4431 gen_compute_compact_branch_nm(ctx, OPC_BC, 0, 0, s); 4432 } else if (rs == 0) { 4433 gen_compute_compact_branch_nm(ctx, OPC_BEQZC, rt, 0, s); 4434 } else { 4435 gen_compute_compact_branch_nm(ctx, OPC_BGEUC, rs, rt, s); 4436 } 4437 break; 4438 } 4439 } 4440 break; 4441 case NM_P_BR2: 4442 { 4443 int32_t s = sextract32(ctx->opcode, 0, 1) << 14 | 4444 extract32(ctx->opcode, 1, 13) << 1; 4445 switch (extract32(ctx->opcode, 14, 2)) { 4446 case NM_BNEC: 4447 check_nms(ctx); 4448 if (rs == rt) { 4449 /* NOP */ 4450 ctx->hflags |= MIPS_HFLAG_FBNSLOT; 4451 } else { 4452 gen_compute_branch_nm(ctx, OPC_BNE, 4, rs, rt, s); 4453 } 4454 break; 4455 case NM_BLTC: 4456 if (rs != 0 && rt != 0 && rs == rt) { 4457 /* NOP */ 4458 ctx->hflags |= MIPS_HFLAG_FBNSLOT; 4459 } else { 4460 gen_compute_compact_branch_nm(ctx, OPC_BLTC, rs, rt, s); 4461 } 4462 break; 4463 case NM_BLTUC: 4464 if (rs == 0 || rs == rt) { 4465 /* NOP */ 4466 ctx->hflags |= MIPS_HFLAG_FBNSLOT; 4467 } else { 4468 gen_compute_compact_branch_nm(ctx, OPC_BLTUC, rs, rt, s); 4469 } 4470 break; 4471 default: 4472 gen_reserved_instruction(ctx); 4473 break; 4474 } 4475 } 4476 break; 4477 case NM_P_BRI: 4478 { 4479 int32_t s = sextract32(ctx->opcode, 0, 1) << 11 | 4480 extract32(ctx->opcode, 1, 10) << 1; 4481 uint32_t u = extract32(ctx->opcode, 11, 7); 4482 4483 gen_compute_imm_branch(ctx, extract32(ctx->opcode, 18, 3), 4484 rt, u, s); 4485 } 4486 break; 4487 default: 4488 gen_reserved_instruction(ctx); 4489 break; 4490 } 4491 return 4; 4492} 4493 4494static int decode_isa_nanomips(CPUMIPSState *env, DisasContext *ctx) 4495{ 4496 uint32_t op; 4497 int rt = decode_gpr_gpr3(NANOMIPS_EXTRACT_RT3(ctx->opcode)); 4498 int rs = decode_gpr_gpr3(NANOMIPS_EXTRACT_RS3(ctx->opcode)); 4499 int rd = decode_gpr_gpr3(NANOMIPS_EXTRACT_RD3(ctx->opcode)); 4500 int offset; 4501 int imm; 4502 4503 /* make sure instructions are on a halfword boundary */ 4504 if (ctx->base.pc_next & 0x1) { 4505 TCGv tmp = tcg_constant_tl(ctx->base.pc_next); 4506 tcg_gen_st_tl(tmp, cpu_env, offsetof(CPUMIPSState, CP0_BadVAddr)); 4507 generate_exception_end(ctx, EXCP_AdEL); 4508 return 2; 4509 } 4510 4511 op = extract32(ctx->opcode, 10, 6); 4512 switch (op) { 4513 case NM_P16_MV: 4514 rt = NANOMIPS_EXTRACT_RD5(ctx->opcode); 4515 if (rt != 0) { 4516 /* MOVE */ 4517 rs = NANOMIPS_EXTRACT_RS5(ctx->opcode); 4518 gen_arith(ctx, OPC_ADDU, rt, rs, 0); 4519 } else { 4520 /* P16.RI */ 4521 switch (extract32(ctx->opcode, 3, 2)) { 4522 case NM_P16_SYSCALL: 4523 if (extract32(ctx->opcode, 2, 1) == 0) { 4524 generate_exception_end(ctx, EXCP_SYSCALL); 4525 } else { 4526 gen_reserved_instruction(ctx); 4527 } 4528 break; 4529 case NM_BREAK16: 4530 generate_exception_end(ctx, EXCP_BREAK); 4531 break; 4532 case NM_SDBBP16: 4533 if (is_uhi(ctx, extract32(ctx->opcode, 0, 3))) { 4534 ctx->base.is_jmp = DISAS_SEMIHOST; 4535 } else { 4536 if (ctx->hflags & MIPS_HFLAG_SBRI) { 4537 gen_reserved_instruction(ctx); 4538 } else { 4539 generate_exception_end(ctx, EXCP_DBp); 4540 } 4541 } 4542 break; 4543 default: 4544 gen_reserved_instruction(ctx); 4545 break; 4546 } 4547 } 4548 break; 4549 case NM_P16_SHIFT: 4550 { 4551 int shift = extract32(ctx->opcode, 0, 3); 4552 uint32_t opc = 0; 4553 shift = (shift == 0) ? 8 : shift; 4554 4555 switch (extract32(ctx->opcode, 3, 1)) { 4556 case NM_SLL16: 4557 opc = OPC_SLL; 4558 break; 4559 case NM_SRL16: 4560 opc = OPC_SRL; 4561 break; 4562 } 4563 gen_shift_imm(ctx, opc, rt, rs, shift); 4564 } 4565 break; 4566 case NM_P16C: 4567 switch (ctx->opcode & 1) { 4568 case NM_POOL16C_0: 4569 gen_pool16c_nanomips_insn(ctx); 4570 break; 4571 case NM_LWXS16: 4572 gen_ldxs(ctx, rt, rs, rd); 4573 break; 4574 } 4575 break; 4576 case NM_P16_A1: 4577 switch (extract32(ctx->opcode, 6, 1)) { 4578 case NM_ADDIUR1SP: 4579 imm = extract32(ctx->opcode, 0, 6) << 2; 4580 gen_arith_imm(ctx, OPC_ADDIU, rt, 29, imm); 4581 break; 4582 default: 4583 gen_reserved_instruction(ctx); 4584 break; 4585 } 4586 break; 4587 case NM_P16_A2: 4588 switch (extract32(ctx->opcode, 3, 1)) { 4589 case NM_ADDIUR2: 4590 imm = extract32(ctx->opcode, 0, 3) << 2; 4591 gen_arith_imm(ctx, OPC_ADDIU, rt, rs, imm); 4592 break; 4593 case NM_P_ADDIURS5: 4594 rt = extract32(ctx->opcode, 5, 5); 4595 if (rt != 0) { 4596 /* imm = sign_extend(s[3] . s[2:0] , from_nbits = 4) */ 4597 imm = (sextract32(ctx->opcode, 4, 1) << 3) | 4598 (extract32(ctx->opcode, 0, 3)); 4599 gen_arith_imm(ctx, OPC_ADDIU, rt, rt, imm); 4600 } 4601 break; 4602 } 4603 break; 4604 case NM_P16_ADDU: 4605 switch (ctx->opcode & 0x1) { 4606 case NM_ADDU16: 4607 gen_arith(ctx, OPC_ADDU, rd, rs, rt); 4608 break; 4609 case NM_SUBU16: 4610 gen_arith(ctx, OPC_SUBU, rd, rs, rt); 4611 break; 4612 } 4613 break; 4614 case NM_P16_4X4: 4615 rt = (extract32(ctx->opcode, 9, 1) << 3) | 4616 extract32(ctx->opcode, 5, 3); 4617 rs = (extract32(ctx->opcode, 4, 1) << 3) | 4618 extract32(ctx->opcode, 0, 3); 4619 rt = decode_gpr_gpr4(rt); 4620 rs = decode_gpr_gpr4(rs); 4621 switch ((extract32(ctx->opcode, 7, 2) & 0x2) | 4622 (extract32(ctx->opcode, 3, 1))) { 4623 case NM_ADDU4X4: 4624 check_nms(ctx); 4625 gen_arith(ctx, OPC_ADDU, rt, rs, rt); 4626 break; 4627 case NM_MUL4X4: 4628 check_nms(ctx); 4629 gen_r6_muldiv(ctx, R6_OPC_MUL, rt, rs, rt); 4630 break; 4631 default: 4632 gen_reserved_instruction(ctx); 4633 break; 4634 } 4635 break; 4636 case NM_LI16: 4637 { 4638 imm = extract32(ctx->opcode, 0, 7); 4639 imm = (imm == 0x7f ? -1 : imm); 4640 if (rt != 0) { 4641 tcg_gen_movi_tl(cpu_gpr[rt], imm); 4642 } 4643 } 4644 break; 4645 case NM_ANDI16: 4646 { 4647 uint32_t u = extract32(ctx->opcode, 0, 4); 4648 u = (u == 12) ? 0xff : 4649 (u == 13) ? 0xffff : u; 4650 gen_logic_imm(ctx, OPC_ANDI, rt, rs, u); 4651 } 4652 break; 4653 case NM_P16_LB: 4654 offset = extract32(ctx->opcode, 0, 2); 4655 switch (extract32(ctx->opcode, 2, 2)) { 4656 case NM_LB16: 4657 gen_ld(ctx, OPC_LB, rt, rs, offset); 4658 break; 4659 case NM_SB16: 4660 rt = decode_gpr_gpr3_src_store( 4661 NANOMIPS_EXTRACT_RT3(ctx->opcode)); 4662 gen_st(ctx, OPC_SB, rt, rs, offset); 4663 break; 4664 case NM_LBU16: 4665 gen_ld(ctx, OPC_LBU, rt, rs, offset); 4666 break; 4667 default: 4668 gen_reserved_instruction(ctx); 4669 break; 4670 } 4671 break; 4672 case NM_P16_LH: 4673 offset = extract32(ctx->opcode, 1, 2) << 1; 4674 switch ((extract32(ctx->opcode, 3, 1) << 1) | (ctx->opcode & 1)) { 4675 case NM_LH16: 4676 gen_ld(ctx, OPC_LH, rt, rs, offset); 4677 break; 4678 case NM_SH16: 4679 rt = decode_gpr_gpr3_src_store( 4680 NANOMIPS_EXTRACT_RT3(ctx->opcode)); 4681 gen_st(ctx, OPC_SH, rt, rs, offset); 4682 break; 4683 case NM_LHU16: 4684 gen_ld(ctx, OPC_LHU, rt, rs, offset); 4685 break; 4686 default: 4687 gen_reserved_instruction(ctx); 4688 break; 4689 } 4690 break; 4691 case NM_LW16: 4692 offset = extract32(ctx->opcode, 0, 4) << 2; 4693 gen_ld(ctx, OPC_LW, rt, rs, offset); 4694 break; 4695 case NM_LWSP16: 4696 rt = NANOMIPS_EXTRACT_RD5(ctx->opcode); 4697 offset = extract32(ctx->opcode, 0, 5) << 2; 4698 gen_ld(ctx, OPC_LW, rt, 29, offset); 4699 break; 4700 case NM_LW4X4: 4701 check_nms(ctx); 4702 rt = (extract32(ctx->opcode, 9, 1) << 3) | 4703 extract32(ctx->opcode, 5, 3); 4704 rs = (extract32(ctx->opcode, 4, 1) << 3) | 4705 extract32(ctx->opcode, 0, 3); 4706 offset = (extract32(ctx->opcode, 3, 1) << 3) | 4707 (extract32(ctx->opcode, 8, 1) << 2); 4708 rt = decode_gpr_gpr4(rt); 4709 rs = decode_gpr_gpr4(rs); 4710 gen_ld(ctx, OPC_LW, rt, rs, offset); 4711 break; 4712 case NM_SW4X4: 4713 check_nms(ctx); 4714 rt = (extract32(ctx->opcode, 9, 1) << 3) | 4715 extract32(ctx->opcode, 5, 3); 4716 rs = (extract32(ctx->opcode, 4, 1) << 3) | 4717 extract32(ctx->opcode, 0, 3); 4718 offset = (extract32(ctx->opcode, 3, 1) << 3) | 4719 (extract32(ctx->opcode, 8, 1) << 2); 4720 rt = decode_gpr_gpr4_zero(rt); 4721 rs = decode_gpr_gpr4(rs); 4722 gen_st(ctx, OPC_SW, rt, rs, offset); 4723 break; 4724 case NM_LWGP16: 4725 offset = extract32(ctx->opcode, 0, 7) << 2; 4726 gen_ld(ctx, OPC_LW, rt, 28, offset); 4727 break; 4728 case NM_SWSP16: 4729 rt = NANOMIPS_EXTRACT_RD5(ctx->opcode); 4730 offset = extract32(ctx->opcode, 0, 5) << 2; 4731 gen_st(ctx, OPC_SW, rt, 29, offset); 4732 break; 4733 case NM_SW16: 4734 rt = decode_gpr_gpr3_src_store( 4735 NANOMIPS_EXTRACT_RT3(ctx->opcode)); 4736 rs = decode_gpr_gpr3(NANOMIPS_EXTRACT_RS3(ctx->opcode)); 4737 offset = extract32(ctx->opcode, 0, 4) << 2; 4738 gen_st(ctx, OPC_SW, rt, rs, offset); 4739 break; 4740 case NM_SWGP16: 4741 rt = decode_gpr_gpr3_src_store( 4742 NANOMIPS_EXTRACT_RT3(ctx->opcode)); 4743 offset = extract32(ctx->opcode, 0, 7) << 2; 4744 gen_st(ctx, OPC_SW, rt, 28, offset); 4745 break; 4746 case NM_BC16: 4747 gen_compute_branch_nm(ctx, OPC_BEQ, 2, 0, 0, 4748 (sextract32(ctx->opcode, 0, 1) << 10) | 4749 (extract32(ctx->opcode, 1, 9) << 1)); 4750 break; 4751 case NM_BALC16: 4752 gen_compute_branch_nm(ctx, OPC_BGEZAL, 2, 0, 0, 4753 (sextract32(ctx->opcode, 0, 1) << 10) | 4754 (extract32(ctx->opcode, 1, 9) << 1)); 4755 break; 4756 case NM_BEQZC16: 4757 gen_compute_branch_nm(ctx, OPC_BEQ, 2, rt, 0, 4758 (sextract32(ctx->opcode, 0, 1) << 7) | 4759 (extract32(ctx->opcode, 1, 6) << 1)); 4760 break; 4761 case NM_BNEZC16: 4762 gen_compute_branch_nm(ctx, OPC_BNE, 2, rt, 0, 4763 (sextract32(ctx->opcode, 0, 1) << 7) | 4764 (extract32(ctx->opcode, 1, 6) << 1)); 4765 break; 4766 case NM_P16_BR: 4767 switch (ctx->opcode & 0xf) { 4768 case 0: 4769 /* P16.JRC */ 4770 switch (extract32(ctx->opcode, 4, 1)) { 4771 case NM_JRC: 4772 gen_compute_branch_nm(ctx, OPC_JR, 2, 4773 extract32(ctx->opcode, 5, 5), 0, 0); 4774 break; 4775 case NM_JALRC16: 4776 gen_compute_branch_nm(ctx, OPC_JALR, 2, 4777 extract32(ctx->opcode, 5, 5), 31, 0); 4778 break; 4779 } 4780 break; 4781 default: 4782 { 4783 /* P16.BRI */ 4784 uint32_t opc = extract32(ctx->opcode, 4, 3) < 4785 extract32(ctx->opcode, 7, 3) ? OPC_BEQ : OPC_BNE; 4786 gen_compute_branch_nm(ctx, opc, 2, rs, rt, 4787 extract32(ctx->opcode, 0, 4) << 1); 4788 } 4789 break; 4790 } 4791 break; 4792 case NM_P16_SR: 4793 { 4794 int count = extract32(ctx->opcode, 0, 4); 4795 int u = extract32(ctx->opcode, 4, 4) << 4; 4796 4797 rt = 30 + extract32(ctx->opcode, 9, 1); 4798 switch (extract32(ctx->opcode, 8, 1)) { 4799 case NM_SAVE16: 4800 gen_save(ctx, rt, count, 0, u); 4801 break; 4802 case NM_RESTORE_JRC16: 4803 gen_restore(ctx, rt, count, 0, u); 4804 gen_compute_branch_nm(ctx, OPC_JR, 2, 31, 0, 0); 4805 break; 4806 } 4807 } 4808 break; 4809 case NM_MOVEP: 4810 case NM_MOVEPREV: 4811 check_nms(ctx); 4812 { 4813 static const int gpr2reg1[] = {4, 5, 6, 7}; 4814 static const int gpr2reg2[] = {5, 6, 7, 8}; 4815 int re; 4816 int rd2 = extract32(ctx->opcode, 3, 1) << 1 | 4817 extract32(ctx->opcode, 8, 1); 4818 int r1 = gpr2reg1[rd2]; 4819 int r2 = gpr2reg2[rd2]; 4820 int r3 = extract32(ctx->opcode, 4, 1) << 3 | 4821 extract32(ctx->opcode, 0, 3); 4822 int r4 = extract32(ctx->opcode, 9, 1) << 3 | 4823 extract32(ctx->opcode, 5, 3); 4824 TCGv t0 = tcg_temp_new(); 4825 TCGv t1 = tcg_temp_new(); 4826 if (op == NM_MOVEP) { 4827 rd = r1; 4828 re = r2; 4829 rs = decode_gpr_gpr4_zero(r3); 4830 rt = decode_gpr_gpr4_zero(r4); 4831 } else { 4832 rd = decode_gpr_gpr4(r3); 4833 re = decode_gpr_gpr4(r4); 4834 rs = r1; 4835 rt = r2; 4836 } 4837 gen_load_gpr(t0, rs); 4838 gen_load_gpr(t1, rt); 4839 tcg_gen_mov_tl(cpu_gpr[rd], t0); 4840 tcg_gen_mov_tl(cpu_gpr[re], t1); 4841 } 4842 break; 4843 default: 4844 return decode_nanomips_32_48_opc(env, ctx); 4845 } 4846 4847 return 2; 4848} 4849