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_ld64(tval, taddr, ctx->mem_idx); 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 tcg_temp_free(tmp1); 1009 gen_store_gpr(tmp2, reg2); 1010 tcg_temp_free(tmp2); 1011 tcg_gen_st_i64(tval, cpu_env, offsetof(CPUMIPSState, llval_wp)); 1012 tcg_temp_free_i64(tval); 1013 tcg_gen_st_tl(taddr, cpu_env, offsetof(CPUMIPSState, lladdr)); 1014 tcg_temp_free(taddr); 1015} 1016 1017static void gen_scwp(DisasContext *ctx, uint32_t base, int16_t offset, 1018 uint32_t reg1, uint32_t reg2, bool eva) 1019{ 1020 TCGv taddr = tcg_temp_local_new(); 1021 TCGv lladdr = tcg_temp_local_new(); 1022 TCGv_i64 tval = tcg_temp_new_i64(); 1023 TCGv_i64 llval = tcg_temp_new_i64(); 1024 TCGv_i64 val = tcg_temp_new_i64(); 1025 TCGv tmp1 = tcg_temp_new(); 1026 TCGv tmp2 = tcg_temp_new(); 1027 TCGLabel *lab_fail = gen_new_label(); 1028 TCGLabel *lab_done = gen_new_label(); 1029 1030 gen_base_offset_addr(ctx, taddr, base, offset); 1031 1032 tcg_gen_ld_tl(lladdr, cpu_env, offsetof(CPUMIPSState, lladdr)); 1033 tcg_gen_brcond_tl(TCG_COND_NE, taddr, lladdr, lab_fail); 1034 1035 gen_load_gpr(tmp1, reg1); 1036 gen_load_gpr(tmp2, reg2); 1037 1038 if (cpu_is_bigendian(ctx)) { 1039 tcg_gen_concat_tl_i64(tval, tmp2, tmp1); 1040 } else { 1041 tcg_gen_concat_tl_i64(tval, tmp1, tmp2); 1042 } 1043 1044 tcg_gen_ld_i64(llval, cpu_env, offsetof(CPUMIPSState, llval_wp)); 1045 tcg_gen_atomic_cmpxchg_i64(val, taddr, llval, tval, 1046 eva ? MIPS_HFLAG_UM : ctx->mem_idx, MO_64); 1047 if (reg1 != 0) { 1048 tcg_gen_movi_tl(cpu_gpr[reg1], 1); 1049 } 1050 tcg_gen_brcond_i64(TCG_COND_EQ, val, llval, lab_done); 1051 1052 gen_set_label(lab_fail); 1053 1054 if (reg1 != 0) { 1055 tcg_gen_movi_tl(cpu_gpr[reg1], 0); 1056 } 1057 gen_set_label(lab_done); 1058 tcg_gen_movi_tl(lladdr, -1); 1059 tcg_gen_st_tl(lladdr, cpu_env, offsetof(CPUMIPSState, lladdr)); 1060} 1061 1062static void gen_adjust_sp(DisasContext *ctx, int u) 1063{ 1064 gen_op_addr_addi(ctx, cpu_gpr[29], cpu_gpr[29], u); 1065} 1066 1067static void gen_save(DisasContext *ctx, uint8_t rt, uint8_t count, 1068 uint8_t gp, uint16_t u) 1069{ 1070 int counter = 0; 1071 TCGv va = tcg_temp_new(); 1072 TCGv t0 = tcg_temp_new(); 1073 1074 while (counter != count) { 1075 bool use_gp = gp && (counter == count - 1); 1076 int this_rt = use_gp ? 28 : (rt & 0x10) | ((rt + counter) & 0x1f); 1077 int this_offset = -((counter + 1) << 2); 1078 gen_base_offset_addr(ctx, va, 29, this_offset); 1079 gen_load_gpr(t0, this_rt); 1080 tcg_gen_qemu_st_tl(t0, va, ctx->mem_idx, 1081 (MO_TEUL | ctx->default_tcg_memop_mask)); 1082 counter++; 1083 } 1084 1085 /* adjust stack pointer */ 1086 gen_adjust_sp(ctx, -u); 1087 1088 tcg_temp_free(t0); 1089 tcg_temp_free(va); 1090} 1091 1092static void gen_restore(DisasContext *ctx, uint8_t rt, uint8_t count, 1093 uint8_t gp, uint16_t u) 1094{ 1095 int counter = 0; 1096 TCGv va = tcg_temp_new(); 1097 TCGv t0 = tcg_temp_new(); 1098 1099 while (counter != count) { 1100 bool use_gp = gp && (counter == count - 1); 1101 int this_rt = use_gp ? 28 : (rt & 0x10) | ((rt + counter) & 0x1f); 1102 int this_offset = u - ((counter + 1) << 2); 1103 gen_base_offset_addr(ctx, va, 29, this_offset); 1104 tcg_gen_qemu_ld_tl(t0, va, ctx->mem_idx, MO_TESL | 1105 ctx->default_tcg_memop_mask); 1106 tcg_gen_ext32s_tl(t0, t0); 1107 gen_store_gpr(t0, this_rt); 1108 counter++; 1109 } 1110 1111 /* adjust stack pointer */ 1112 gen_adjust_sp(ctx, u); 1113 1114 tcg_temp_free(t0); 1115 tcg_temp_free(va); 1116} 1117 1118static void gen_compute_branch_nm(DisasContext *ctx, uint32_t opc, 1119 int insn_bytes, 1120 int rs, int rt, int32_t offset) 1121{ 1122 target_ulong btgt = -1; 1123 int bcond_compute = 0; 1124 TCGv t0 = tcg_temp_new(); 1125 TCGv t1 = tcg_temp_new(); 1126 1127 /* Load needed operands */ 1128 switch (opc) { 1129 case OPC_BEQ: 1130 case OPC_BNE: 1131 /* Compare two registers */ 1132 if (rs != rt) { 1133 gen_load_gpr(t0, rs); 1134 gen_load_gpr(t1, rt); 1135 bcond_compute = 1; 1136 } 1137 btgt = ctx->base.pc_next + insn_bytes + offset; 1138 break; 1139 case OPC_BGEZAL: 1140 /* Compare to zero */ 1141 if (rs != 0) { 1142 gen_load_gpr(t0, rs); 1143 bcond_compute = 1; 1144 } 1145 btgt = ctx->base.pc_next + insn_bytes + offset; 1146 break; 1147 case OPC_BPOSGE32: 1148 tcg_gen_andi_tl(t0, cpu_dspctrl, 0x3F); 1149 bcond_compute = 1; 1150 btgt = ctx->base.pc_next + insn_bytes + offset; 1151 break; 1152 case OPC_JR: 1153 case OPC_JALR: 1154 /* Jump to register */ 1155 if (offset != 0 && offset != 16) { 1156 /* 1157 * Hint = 0 is JR/JALR, hint 16 is JR.HB/JALR.HB, the 1158 * others are reserved. 1159 */ 1160 MIPS_INVAL("jump hint"); 1161 gen_reserved_instruction(ctx); 1162 goto out; 1163 } 1164 gen_load_gpr(btarget, rs); 1165 break; 1166 default: 1167 MIPS_INVAL("branch/jump"); 1168 gen_reserved_instruction(ctx); 1169 goto out; 1170 } 1171 if (bcond_compute == 0) { 1172 /* No condition to be computed */ 1173 switch (opc) { 1174 case OPC_BEQ: /* rx == rx */ 1175 /* Always take */ 1176 ctx->hflags |= MIPS_HFLAG_B; 1177 break; 1178 case OPC_BGEZAL: /* 0 >= 0 */ 1179 /* Always take and link */ 1180 tcg_gen_movi_tl(cpu_gpr[31], 1181 ctx->base.pc_next + insn_bytes); 1182 ctx->hflags |= MIPS_HFLAG_B; 1183 break; 1184 case OPC_BNE: /* rx != rx */ 1185 tcg_gen_movi_tl(cpu_gpr[31], ctx->base.pc_next + 8); 1186 /* Skip the instruction in the delay slot */ 1187 ctx->base.pc_next += 4; 1188 goto out; 1189 case OPC_JR: 1190 ctx->hflags |= MIPS_HFLAG_BR; 1191 break; 1192 case OPC_JALR: 1193 if (rt > 0) { 1194 tcg_gen_movi_tl(cpu_gpr[rt], 1195 ctx->base.pc_next + insn_bytes); 1196 } 1197 ctx->hflags |= MIPS_HFLAG_BR; 1198 break; 1199 default: 1200 MIPS_INVAL("branch/jump"); 1201 gen_reserved_instruction(ctx); 1202 goto out; 1203 } 1204 } else { 1205 switch (opc) { 1206 case OPC_BEQ: 1207 tcg_gen_setcond_tl(TCG_COND_EQ, bcond, t0, t1); 1208 goto not_likely; 1209 case OPC_BNE: 1210 tcg_gen_setcond_tl(TCG_COND_NE, bcond, t0, t1); 1211 goto not_likely; 1212 case OPC_BGEZAL: 1213 tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 0); 1214 tcg_gen_movi_tl(cpu_gpr[31], 1215 ctx->base.pc_next + insn_bytes); 1216 goto not_likely; 1217 case OPC_BPOSGE32: 1218 tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 32); 1219 not_likely: 1220 ctx->hflags |= MIPS_HFLAG_BC; 1221 break; 1222 default: 1223 MIPS_INVAL("conditional branch/jump"); 1224 gen_reserved_instruction(ctx); 1225 goto out; 1226 } 1227 } 1228 1229 ctx->btarget = btgt; 1230 1231 out: 1232 if (insn_bytes == 2) { 1233 ctx->hflags |= MIPS_HFLAG_B16; 1234 } 1235 tcg_temp_free(t0); 1236 tcg_temp_free(t1); 1237} 1238 1239static void gen_pool16c_nanomips_insn(DisasContext *ctx) 1240{ 1241 int rt = decode_gpr_gpr3(NANOMIPS_EXTRACT_RT3(ctx->opcode)); 1242 int rs = decode_gpr_gpr3(NANOMIPS_EXTRACT_RS3(ctx->opcode)); 1243 1244 switch (extract32(ctx->opcode, 2, 2)) { 1245 case NM_NOT16: 1246 gen_logic(ctx, OPC_NOR, rt, rs, 0); 1247 break; 1248 case NM_AND16: 1249 gen_logic(ctx, OPC_AND, rt, rt, rs); 1250 break; 1251 case NM_XOR16: 1252 gen_logic(ctx, OPC_XOR, rt, rt, rs); 1253 break; 1254 case NM_OR16: 1255 gen_logic(ctx, OPC_OR, rt, rt, rs); 1256 break; 1257 } 1258} 1259 1260static void gen_pool32a0_nanomips_insn(CPUMIPSState *env, DisasContext *ctx) 1261{ 1262 int rt = extract32(ctx->opcode, 21, 5); 1263 int rs = extract32(ctx->opcode, 16, 5); 1264 int rd = extract32(ctx->opcode, 11, 5); 1265 1266 switch (extract32(ctx->opcode, 3, 7)) { 1267 case NM_P_TRAP: 1268 switch (extract32(ctx->opcode, 10, 1)) { 1269 case NM_TEQ: 1270 check_nms(ctx); 1271 gen_trap(ctx, OPC_TEQ, rs, rt, -1); 1272 break; 1273 case NM_TNE: 1274 check_nms(ctx); 1275 gen_trap(ctx, OPC_TNE, rs, rt, -1); 1276 break; 1277 } 1278 break; 1279 case NM_RDHWR: 1280 check_nms(ctx); 1281 gen_rdhwr(ctx, rt, rs, extract32(ctx->opcode, 11, 3)); 1282 break; 1283 case NM_SEB: 1284 check_nms(ctx); 1285 gen_bshfl(ctx, OPC_SEB, rs, rt); 1286 break; 1287 case NM_SEH: 1288 gen_bshfl(ctx, OPC_SEH, rs, rt); 1289 break; 1290 case NM_SLLV: 1291 gen_shift(ctx, OPC_SLLV, rd, rt, rs); 1292 break; 1293 case NM_SRLV: 1294 gen_shift(ctx, OPC_SRLV, rd, rt, rs); 1295 break; 1296 case NM_SRAV: 1297 gen_shift(ctx, OPC_SRAV, rd, rt, rs); 1298 break; 1299 case NM_ROTRV: 1300 gen_shift(ctx, OPC_ROTRV, rd, rt, rs); 1301 break; 1302 case NM_ADD: 1303 gen_arith(ctx, OPC_ADD, rd, rs, rt); 1304 break; 1305 case NM_ADDU: 1306 gen_arith(ctx, OPC_ADDU, rd, rs, rt); 1307 break; 1308 case NM_SUB: 1309 check_nms(ctx); 1310 gen_arith(ctx, OPC_SUB, rd, rs, rt); 1311 break; 1312 case NM_SUBU: 1313 gen_arith(ctx, OPC_SUBU, rd, rs, rt); 1314 break; 1315 case NM_P_CMOVE: 1316 switch (extract32(ctx->opcode, 10, 1)) { 1317 case NM_MOVZ: 1318 gen_cond_move(ctx, OPC_MOVZ, rd, rs, rt); 1319 break; 1320 case NM_MOVN: 1321 gen_cond_move(ctx, OPC_MOVN, rd, rs, rt); 1322 break; 1323 } 1324 break; 1325 case NM_AND: 1326 gen_logic(ctx, OPC_AND, rd, rs, rt); 1327 break; 1328 case NM_OR: 1329 gen_logic(ctx, OPC_OR, rd, rs, rt); 1330 break; 1331 case NM_NOR: 1332 gen_logic(ctx, OPC_NOR, rd, rs, rt); 1333 break; 1334 case NM_XOR: 1335 gen_logic(ctx, OPC_XOR, rd, rs, rt); 1336 break; 1337 case NM_SLT: 1338 gen_slt(ctx, OPC_SLT, rd, rs, rt); 1339 break; 1340 case NM_P_SLTU: 1341 if (rd == 0) { 1342 /* P_DVP */ 1343#ifndef CONFIG_USER_ONLY 1344 TCGv t0 = tcg_temp_new(); 1345 switch (extract32(ctx->opcode, 10, 1)) { 1346 case NM_DVP: 1347 if (ctx->vp) { 1348 check_cp0_enabled(ctx); 1349 gen_helper_dvp(t0, cpu_env); 1350 gen_store_gpr(t0, rt); 1351 } 1352 break; 1353 case NM_EVP: 1354 if (ctx->vp) { 1355 check_cp0_enabled(ctx); 1356 gen_helper_evp(t0, cpu_env); 1357 gen_store_gpr(t0, rt); 1358 } 1359 break; 1360 } 1361 tcg_temp_free(t0); 1362#endif 1363 } else { 1364 gen_slt(ctx, OPC_SLTU, rd, rs, rt); 1365 } 1366 break; 1367 case NM_SOV: 1368 { 1369 TCGv t0 = tcg_temp_new(); 1370 TCGv t1 = tcg_temp_new(); 1371 TCGv t2 = tcg_temp_new(); 1372 1373 gen_load_gpr(t1, rs); 1374 gen_load_gpr(t2, rt); 1375 tcg_gen_add_tl(t0, t1, t2); 1376 tcg_gen_ext32s_tl(t0, t0); 1377 tcg_gen_xor_tl(t1, t1, t2); 1378 tcg_gen_xor_tl(t2, t0, t2); 1379 tcg_gen_andc_tl(t1, t2, t1); 1380 1381 /* operands of same sign, result different sign */ 1382 tcg_gen_setcondi_tl(TCG_COND_LT, t0, t1, 0); 1383 gen_store_gpr(t0, rd); 1384 1385 tcg_temp_free(t0); 1386 tcg_temp_free(t1); 1387 tcg_temp_free(t2); 1388 } 1389 break; 1390 case NM_MUL: 1391 gen_r6_muldiv(ctx, R6_OPC_MUL, rd, rs, rt); 1392 break; 1393 case NM_MUH: 1394 gen_r6_muldiv(ctx, R6_OPC_MUH, rd, rs, rt); 1395 break; 1396 case NM_MULU: 1397 gen_r6_muldiv(ctx, R6_OPC_MULU, rd, rs, rt); 1398 break; 1399 case NM_MUHU: 1400 gen_r6_muldiv(ctx, R6_OPC_MUHU, rd, rs, rt); 1401 break; 1402 case NM_DIV: 1403 gen_r6_muldiv(ctx, R6_OPC_DIV, rd, rs, rt); 1404 break; 1405 case NM_MOD: 1406 gen_r6_muldiv(ctx, R6_OPC_MOD, rd, rs, rt); 1407 break; 1408 case NM_DIVU: 1409 gen_r6_muldiv(ctx, R6_OPC_DIVU, rd, rs, rt); 1410 break; 1411 case NM_MODU: 1412 gen_r6_muldiv(ctx, R6_OPC_MODU, rd, rs, rt); 1413 break; 1414#ifndef CONFIG_USER_ONLY 1415 case NM_MFC0: 1416 check_cp0_enabled(ctx); 1417 if (rt == 0) { 1418 /* Treat as NOP. */ 1419 break; 1420 } 1421 gen_mfc0(ctx, cpu_gpr[rt], rs, extract32(ctx->opcode, 11, 3)); 1422 break; 1423 case NM_MTC0: 1424 check_cp0_enabled(ctx); 1425 { 1426 TCGv t0 = tcg_temp_new(); 1427 1428 gen_load_gpr(t0, rt); 1429 gen_mtc0(ctx, t0, rs, extract32(ctx->opcode, 11, 3)); 1430 tcg_temp_free(t0); 1431 } 1432 break; 1433 case NM_D_E_MT_VPE: 1434 { 1435 uint8_t sc = extract32(ctx->opcode, 10, 1); 1436 TCGv t0 = tcg_temp_new(); 1437 1438 switch (sc) { 1439 case 0: 1440 if (rs == 1) { 1441 /* DMT */ 1442 check_cp0_mt(ctx); 1443 gen_helper_dmt(t0); 1444 gen_store_gpr(t0, rt); 1445 } else if (rs == 0) { 1446 /* DVPE */ 1447 check_cp0_mt(ctx); 1448 gen_helper_dvpe(t0, cpu_env); 1449 gen_store_gpr(t0, rt); 1450 } else { 1451 gen_reserved_instruction(ctx); 1452 } 1453 break; 1454 case 1: 1455 if (rs == 1) { 1456 /* EMT */ 1457 check_cp0_mt(ctx); 1458 gen_helper_emt(t0); 1459 gen_store_gpr(t0, rt); 1460 } else if (rs == 0) { 1461 /* EVPE */ 1462 check_cp0_mt(ctx); 1463 gen_helper_evpe(t0, cpu_env); 1464 gen_store_gpr(t0, rt); 1465 } else { 1466 gen_reserved_instruction(ctx); 1467 } 1468 break; 1469 } 1470 1471 tcg_temp_free(t0); 1472 } 1473 break; 1474 case NM_FORK: 1475 check_mt(ctx); 1476 { 1477 TCGv t0 = tcg_temp_new(); 1478 TCGv t1 = tcg_temp_new(); 1479 1480 gen_load_gpr(t0, rt); 1481 gen_load_gpr(t1, rs); 1482 gen_helper_fork(t0, t1); 1483 tcg_temp_free(t0); 1484 tcg_temp_free(t1); 1485 } 1486 break; 1487 case NM_MFTR: 1488 case NM_MFHTR: 1489 check_cp0_enabled(ctx); 1490 if (rd == 0) { 1491 /* Treat as NOP. */ 1492 return; 1493 } 1494 gen_mftr(env, ctx, rs, rt, extract32(ctx->opcode, 10, 1), 1495 extract32(ctx->opcode, 11, 5), extract32(ctx->opcode, 3, 1)); 1496 break; 1497 case NM_MTTR: 1498 case NM_MTHTR: 1499 check_cp0_enabled(ctx); 1500 gen_mttr(env, ctx, rs, rt, extract32(ctx->opcode, 10, 1), 1501 extract32(ctx->opcode, 11, 5), extract32(ctx->opcode, 3, 1)); 1502 break; 1503 case NM_YIELD: 1504 check_mt(ctx); 1505 { 1506 TCGv t0 = tcg_temp_new(); 1507 1508 gen_load_gpr(t0, rs); 1509 gen_helper_yield(t0, cpu_env, t0); 1510 gen_store_gpr(t0, rt); 1511 tcg_temp_free(t0); 1512 } 1513 break; 1514#endif 1515 default: 1516 gen_reserved_instruction(ctx); 1517 break; 1518 } 1519} 1520 1521/* dsp */ 1522static void gen_pool32axf_1_5_nanomips_insn(DisasContext *ctx, uint32_t opc, 1523 int ret, int v1, int v2) 1524{ 1525 TCGv_i32 t0; 1526 TCGv v0_t; 1527 TCGv v1_t; 1528 1529 t0 = tcg_temp_new_i32(); 1530 1531 v0_t = tcg_temp_new(); 1532 v1_t = tcg_temp_new(); 1533 1534 tcg_gen_movi_i32(t0, v2 >> 3); 1535 1536 gen_load_gpr(v0_t, ret); 1537 gen_load_gpr(v1_t, v1); 1538 1539 switch (opc) { 1540 case NM_MAQ_S_W_PHR: 1541 check_dsp(ctx); 1542 gen_helper_maq_s_w_phr(t0, v1_t, v0_t, cpu_env); 1543 break; 1544 case NM_MAQ_S_W_PHL: 1545 check_dsp(ctx); 1546 gen_helper_maq_s_w_phl(t0, v1_t, v0_t, cpu_env); 1547 break; 1548 case NM_MAQ_SA_W_PHR: 1549 check_dsp(ctx); 1550 gen_helper_maq_sa_w_phr(t0, v1_t, v0_t, cpu_env); 1551 break; 1552 case NM_MAQ_SA_W_PHL: 1553 check_dsp(ctx); 1554 gen_helper_maq_sa_w_phl(t0, v1_t, v0_t, cpu_env); 1555 break; 1556 default: 1557 gen_reserved_instruction(ctx); 1558 break; 1559 } 1560 1561 tcg_temp_free_i32(t0); 1562 1563 tcg_temp_free(v0_t); 1564 tcg_temp_free(v1_t); 1565} 1566 1567 1568static void gen_pool32axf_1_nanomips_insn(DisasContext *ctx, uint32_t opc, 1569 int ret, int v1, int v2) 1570{ 1571 int16_t imm; 1572 TCGv t0 = tcg_temp_new(); 1573 TCGv t1 = tcg_temp_new(); 1574 TCGv v0_t = tcg_temp_new(); 1575 1576 gen_load_gpr(v0_t, v1); 1577 1578 switch (opc) { 1579 case NM_POOL32AXF_1_0: 1580 check_dsp(ctx); 1581 switch (extract32(ctx->opcode, 12, 2)) { 1582 case NM_MFHI: 1583 gen_HILO(ctx, OPC_MFHI, v2 >> 3, ret); 1584 break; 1585 case NM_MFLO: 1586 gen_HILO(ctx, OPC_MFLO, v2 >> 3, ret); 1587 break; 1588 case NM_MTHI: 1589 gen_HILO(ctx, OPC_MTHI, v2 >> 3, v1); 1590 break; 1591 case NM_MTLO: 1592 gen_HILO(ctx, OPC_MTLO, v2 >> 3, v1); 1593 break; 1594 } 1595 break; 1596 case NM_POOL32AXF_1_1: 1597 check_dsp(ctx); 1598 switch (extract32(ctx->opcode, 12, 2)) { 1599 case NM_MTHLIP: 1600 tcg_gen_movi_tl(t0, v2); 1601 gen_helper_mthlip(t0, v0_t, cpu_env); 1602 break; 1603 case NM_SHILOV: 1604 tcg_gen_movi_tl(t0, v2 >> 3); 1605 gen_helper_shilo(t0, v0_t, cpu_env); 1606 break; 1607 default: 1608 gen_reserved_instruction(ctx); 1609 break; 1610 } 1611 break; 1612 case NM_POOL32AXF_1_3: 1613 check_dsp(ctx); 1614 imm = extract32(ctx->opcode, 14, 7); 1615 switch (extract32(ctx->opcode, 12, 2)) { 1616 case NM_RDDSP: 1617 tcg_gen_movi_tl(t0, imm); 1618 gen_helper_rddsp(t0, t0, cpu_env); 1619 gen_store_gpr(t0, ret); 1620 break; 1621 case NM_WRDSP: 1622 gen_load_gpr(t0, ret); 1623 tcg_gen_movi_tl(t1, imm); 1624 gen_helper_wrdsp(t0, t1, cpu_env); 1625 break; 1626 case NM_EXTP: 1627 tcg_gen_movi_tl(t0, v2 >> 3); 1628 tcg_gen_movi_tl(t1, v1); 1629 gen_helper_extp(t0, t0, t1, cpu_env); 1630 gen_store_gpr(t0, ret); 1631 break; 1632 case NM_EXTPDP: 1633 tcg_gen_movi_tl(t0, v2 >> 3); 1634 tcg_gen_movi_tl(t1, v1); 1635 gen_helper_extpdp(t0, t0, t1, cpu_env); 1636 gen_store_gpr(t0, ret); 1637 break; 1638 } 1639 break; 1640 case NM_POOL32AXF_1_4: 1641 check_dsp(ctx); 1642 tcg_gen_movi_tl(t0, v2 >> 2); 1643 switch (extract32(ctx->opcode, 12, 1)) { 1644 case NM_SHLL_QB: 1645 gen_helper_shll_qb(t0, t0, v0_t, cpu_env); 1646 gen_store_gpr(t0, ret); 1647 break; 1648 case NM_SHRL_QB: 1649 gen_helper_shrl_qb(t0, t0, v0_t); 1650 gen_store_gpr(t0, ret); 1651 break; 1652 } 1653 break; 1654 case NM_POOL32AXF_1_5: 1655 opc = extract32(ctx->opcode, 12, 2); 1656 gen_pool32axf_1_5_nanomips_insn(ctx, opc, ret, v1, v2); 1657 break; 1658 case NM_POOL32AXF_1_7: 1659 check_dsp(ctx); 1660 tcg_gen_movi_tl(t0, v2 >> 3); 1661 tcg_gen_movi_tl(t1, v1); 1662 switch (extract32(ctx->opcode, 12, 2)) { 1663 case NM_EXTR_W: 1664 gen_helper_extr_w(t0, t0, t1, cpu_env); 1665 gen_store_gpr(t0, ret); 1666 break; 1667 case NM_EXTR_R_W: 1668 gen_helper_extr_r_w(t0, t0, t1, cpu_env); 1669 gen_store_gpr(t0, ret); 1670 break; 1671 case NM_EXTR_RS_W: 1672 gen_helper_extr_rs_w(t0, t0, t1, cpu_env); 1673 gen_store_gpr(t0, ret); 1674 break; 1675 case NM_EXTR_S_H: 1676 gen_helper_extr_s_h(t0, t0, t1, cpu_env); 1677 gen_store_gpr(t0, ret); 1678 break; 1679 } 1680 break; 1681 default: 1682 gen_reserved_instruction(ctx); 1683 break; 1684 } 1685 1686 tcg_temp_free(t0); 1687 tcg_temp_free(t1); 1688 tcg_temp_free(v0_t); 1689} 1690 1691static void gen_pool32axf_2_multiply(DisasContext *ctx, uint32_t opc, 1692 TCGv v0, TCGv v1, int rd) 1693{ 1694 TCGv_i32 t0; 1695 1696 t0 = tcg_temp_new_i32(); 1697 1698 tcg_gen_movi_i32(t0, rd >> 3); 1699 1700 switch (opc) { 1701 case NM_POOL32AXF_2_0_7: 1702 switch (extract32(ctx->opcode, 9, 3)) { 1703 case NM_DPA_W_PH: 1704 check_dsp_r2(ctx); 1705 gen_helper_dpa_w_ph(t0, v1, v0, cpu_env); 1706 break; 1707 case NM_DPAQ_S_W_PH: 1708 check_dsp(ctx); 1709 gen_helper_dpaq_s_w_ph(t0, v1, v0, cpu_env); 1710 break; 1711 case NM_DPS_W_PH: 1712 check_dsp_r2(ctx); 1713 gen_helper_dps_w_ph(t0, v1, v0, cpu_env); 1714 break; 1715 case NM_DPSQ_S_W_PH: 1716 check_dsp(ctx); 1717 gen_helper_dpsq_s_w_ph(t0, v1, v0, cpu_env); 1718 break; 1719 default: 1720 gen_reserved_instruction(ctx); 1721 break; 1722 } 1723 break; 1724 case NM_POOL32AXF_2_8_15: 1725 switch (extract32(ctx->opcode, 9, 3)) { 1726 case NM_DPAX_W_PH: 1727 check_dsp_r2(ctx); 1728 gen_helper_dpax_w_ph(t0, v0, v1, cpu_env); 1729 break; 1730 case NM_DPAQ_SA_L_W: 1731 check_dsp(ctx); 1732 gen_helper_dpaq_sa_l_w(t0, v0, v1, cpu_env); 1733 break; 1734 case NM_DPSX_W_PH: 1735 check_dsp_r2(ctx); 1736 gen_helper_dpsx_w_ph(t0, v0, v1, cpu_env); 1737 break; 1738 case NM_DPSQ_SA_L_W: 1739 check_dsp(ctx); 1740 gen_helper_dpsq_sa_l_w(t0, v0, v1, cpu_env); 1741 break; 1742 default: 1743 gen_reserved_instruction(ctx); 1744 break; 1745 } 1746 break; 1747 case NM_POOL32AXF_2_16_23: 1748 switch (extract32(ctx->opcode, 9, 3)) { 1749 case NM_DPAU_H_QBL: 1750 check_dsp(ctx); 1751 gen_helper_dpau_h_qbl(t0, v0, v1, cpu_env); 1752 break; 1753 case NM_DPAQX_S_W_PH: 1754 check_dsp_r2(ctx); 1755 gen_helper_dpaqx_s_w_ph(t0, v0, v1, cpu_env); 1756 break; 1757 case NM_DPSU_H_QBL: 1758 check_dsp(ctx); 1759 gen_helper_dpsu_h_qbl(t0, v0, v1, cpu_env); 1760 break; 1761 case NM_DPSQX_S_W_PH: 1762 check_dsp_r2(ctx); 1763 gen_helper_dpsqx_s_w_ph(t0, v0, v1, cpu_env); 1764 break; 1765 case NM_MULSA_W_PH: 1766 check_dsp_r2(ctx); 1767 gen_helper_mulsa_w_ph(t0, v0, v1, cpu_env); 1768 break; 1769 default: 1770 gen_reserved_instruction(ctx); 1771 break; 1772 } 1773 break; 1774 case NM_POOL32AXF_2_24_31: 1775 switch (extract32(ctx->opcode, 9, 3)) { 1776 case NM_DPAU_H_QBR: 1777 check_dsp(ctx); 1778 gen_helper_dpau_h_qbr(t0, v1, v0, cpu_env); 1779 break; 1780 case NM_DPAQX_SA_W_PH: 1781 check_dsp_r2(ctx); 1782 gen_helper_dpaqx_sa_w_ph(t0, v1, v0, cpu_env); 1783 break; 1784 case NM_DPSU_H_QBR: 1785 check_dsp(ctx); 1786 gen_helper_dpsu_h_qbr(t0, v1, v0, cpu_env); 1787 break; 1788 case NM_DPSQX_SA_W_PH: 1789 check_dsp_r2(ctx); 1790 gen_helper_dpsqx_sa_w_ph(t0, v1, v0, cpu_env); 1791 break; 1792 case NM_MULSAQ_S_W_PH: 1793 check_dsp(ctx); 1794 gen_helper_mulsaq_s_w_ph(t0, v1, v0, cpu_env); 1795 break; 1796 default: 1797 gen_reserved_instruction(ctx); 1798 break; 1799 } 1800 break; 1801 default: 1802 gen_reserved_instruction(ctx); 1803 break; 1804 } 1805 1806 tcg_temp_free_i32(t0); 1807} 1808 1809static void gen_pool32axf_2_nanomips_insn(DisasContext *ctx, uint32_t opc, 1810 int rt, int rs, int rd) 1811{ 1812 int ret = rt; 1813 TCGv t0 = tcg_temp_new(); 1814 TCGv t1 = tcg_temp_new(); 1815 TCGv v0_t = tcg_temp_new(); 1816 TCGv v1_t = tcg_temp_new(); 1817 1818 gen_load_gpr(v0_t, rt); 1819 gen_load_gpr(v1_t, rs); 1820 1821 switch (opc) { 1822 case NM_POOL32AXF_2_0_7: 1823 switch (extract32(ctx->opcode, 9, 3)) { 1824 case NM_DPA_W_PH: 1825 case NM_DPAQ_S_W_PH: 1826 case NM_DPS_W_PH: 1827 case NM_DPSQ_S_W_PH: 1828 gen_pool32axf_2_multiply(ctx, opc, v0_t, v1_t, rd); 1829 break; 1830 case NM_BALIGN: 1831 check_dsp_r2(ctx); 1832 if (rt != 0) { 1833 gen_load_gpr(t0, rs); 1834 rd &= 3; 1835 if (rd != 0 && rd != 2) { 1836 tcg_gen_shli_tl(cpu_gpr[ret], cpu_gpr[ret], 8 * rd); 1837 tcg_gen_ext32u_tl(t0, t0); 1838 tcg_gen_shri_tl(t0, t0, 8 * (4 - rd)); 1839 tcg_gen_or_tl(cpu_gpr[ret], cpu_gpr[ret], t0); 1840 } 1841 tcg_gen_ext32s_tl(cpu_gpr[ret], cpu_gpr[ret]); 1842 } 1843 break; 1844 case NM_MADD: 1845 check_dsp(ctx); 1846 { 1847 int acc = extract32(ctx->opcode, 14, 2); 1848 TCGv_i64 t2 = tcg_temp_new_i64(); 1849 TCGv_i64 t3 = tcg_temp_new_i64(); 1850 1851 gen_load_gpr(t0, rt); 1852 gen_load_gpr(t1, rs); 1853 tcg_gen_ext_tl_i64(t2, t0); 1854 tcg_gen_ext_tl_i64(t3, t1); 1855 tcg_gen_mul_i64(t2, t2, t3); 1856 tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]); 1857 tcg_gen_add_i64(t2, t2, t3); 1858 tcg_temp_free_i64(t3); 1859 gen_move_low32(cpu_LO[acc], t2); 1860 gen_move_high32(cpu_HI[acc], t2); 1861 tcg_temp_free_i64(t2); 1862 } 1863 break; 1864 case NM_MULT: 1865 check_dsp(ctx); 1866 { 1867 int acc = extract32(ctx->opcode, 14, 2); 1868 TCGv_i32 t2 = tcg_temp_new_i32(); 1869 TCGv_i32 t3 = tcg_temp_new_i32(); 1870 1871 gen_load_gpr(t0, rs); 1872 gen_load_gpr(t1, rt); 1873 tcg_gen_trunc_tl_i32(t2, t0); 1874 tcg_gen_trunc_tl_i32(t3, t1); 1875 tcg_gen_muls2_i32(t2, t3, t2, t3); 1876 tcg_gen_ext_i32_tl(cpu_LO[acc], t2); 1877 tcg_gen_ext_i32_tl(cpu_HI[acc], t3); 1878 tcg_temp_free_i32(t2); 1879 tcg_temp_free_i32(t3); 1880 } 1881 break; 1882 case NM_EXTRV_W: 1883 check_dsp(ctx); 1884 gen_load_gpr(v1_t, rs); 1885 tcg_gen_movi_tl(t0, rd >> 3); 1886 gen_helper_extr_w(t0, t0, v1_t, cpu_env); 1887 gen_store_gpr(t0, ret); 1888 break; 1889 } 1890 break; 1891 case NM_POOL32AXF_2_8_15: 1892 switch (extract32(ctx->opcode, 9, 3)) { 1893 case NM_DPAX_W_PH: 1894 case NM_DPAQ_SA_L_W: 1895 case NM_DPSX_W_PH: 1896 case NM_DPSQ_SA_L_W: 1897 gen_pool32axf_2_multiply(ctx, opc, v0_t, v1_t, rd); 1898 break; 1899 case NM_MADDU: 1900 check_dsp(ctx); 1901 { 1902 int acc = extract32(ctx->opcode, 14, 2); 1903 TCGv_i64 t2 = tcg_temp_new_i64(); 1904 TCGv_i64 t3 = tcg_temp_new_i64(); 1905 1906 gen_load_gpr(t0, rs); 1907 gen_load_gpr(t1, rt); 1908 tcg_gen_ext32u_tl(t0, t0); 1909 tcg_gen_ext32u_tl(t1, t1); 1910 tcg_gen_extu_tl_i64(t2, t0); 1911 tcg_gen_extu_tl_i64(t3, t1); 1912 tcg_gen_mul_i64(t2, t2, t3); 1913 tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]); 1914 tcg_gen_add_i64(t2, t2, t3); 1915 tcg_temp_free_i64(t3); 1916 gen_move_low32(cpu_LO[acc], t2); 1917 gen_move_high32(cpu_HI[acc], t2); 1918 tcg_temp_free_i64(t2); 1919 } 1920 break; 1921 case NM_MULTU: 1922 check_dsp(ctx); 1923 { 1924 int acc = extract32(ctx->opcode, 14, 2); 1925 TCGv_i32 t2 = tcg_temp_new_i32(); 1926 TCGv_i32 t3 = tcg_temp_new_i32(); 1927 1928 gen_load_gpr(t0, rs); 1929 gen_load_gpr(t1, rt); 1930 tcg_gen_trunc_tl_i32(t2, t0); 1931 tcg_gen_trunc_tl_i32(t3, t1); 1932 tcg_gen_mulu2_i32(t2, t3, t2, t3); 1933 tcg_gen_ext_i32_tl(cpu_LO[acc], t2); 1934 tcg_gen_ext_i32_tl(cpu_HI[acc], t3); 1935 tcg_temp_free_i32(t2); 1936 tcg_temp_free_i32(t3); 1937 } 1938 break; 1939 case NM_EXTRV_R_W: 1940 check_dsp(ctx); 1941 tcg_gen_movi_tl(t0, rd >> 3); 1942 gen_helper_extr_r_w(t0, t0, v1_t, cpu_env); 1943 gen_store_gpr(t0, ret); 1944 break; 1945 default: 1946 gen_reserved_instruction(ctx); 1947 break; 1948 } 1949 break; 1950 case NM_POOL32AXF_2_16_23: 1951 switch (extract32(ctx->opcode, 9, 3)) { 1952 case NM_DPAU_H_QBL: 1953 case NM_DPAQX_S_W_PH: 1954 case NM_DPSU_H_QBL: 1955 case NM_DPSQX_S_W_PH: 1956 case NM_MULSA_W_PH: 1957 gen_pool32axf_2_multiply(ctx, opc, v0_t, v1_t, rd); 1958 break; 1959 case NM_EXTPV: 1960 check_dsp(ctx); 1961 tcg_gen_movi_tl(t0, rd >> 3); 1962 gen_helper_extp(t0, t0, v1_t, cpu_env); 1963 gen_store_gpr(t0, ret); 1964 break; 1965 case NM_MSUB: 1966 check_dsp(ctx); 1967 { 1968 int acc = extract32(ctx->opcode, 14, 2); 1969 TCGv_i64 t2 = tcg_temp_new_i64(); 1970 TCGv_i64 t3 = tcg_temp_new_i64(); 1971 1972 gen_load_gpr(t0, rs); 1973 gen_load_gpr(t1, rt); 1974 tcg_gen_ext_tl_i64(t2, t0); 1975 tcg_gen_ext_tl_i64(t3, t1); 1976 tcg_gen_mul_i64(t2, t2, t3); 1977 tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]); 1978 tcg_gen_sub_i64(t2, t3, t2); 1979 tcg_temp_free_i64(t3); 1980 gen_move_low32(cpu_LO[acc], t2); 1981 gen_move_high32(cpu_HI[acc], t2); 1982 tcg_temp_free_i64(t2); 1983 } 1984 break; 1985 case NM_EXTRV_RS_W: 1986 check_dsp(ctx); 1987 tcg_gen_movi_tl(t0, rd >> 3); 1988 gen_helper_extr_rs_w(t0, t0, v1_t, cpu_env); 1989 gen_store_gpr(t0, ret); 1990 break; 1991 } 1992 break; 1993 case NM_POOL32AXF_2_24_31: 1994 switch (extract32(ctx->opcode, 9, 3)) { 1995 case NM_DPAU_H_QBR: 1996 case NM_DPAQX_SA_W_PH: 1997 case NM_DPSU_H_QBR: 1998 case NM_DPSQX_SA_W_PH: 1999 case NM_MULSAQ_S_W_PH: 2000 gen_pool32axf_2_multiply(ctx, opc, v0_t, v1_t, rd); 2001 break; 2002 case NM_EXTPDPV: 2003 check_dsp(ctx); 2004 tcg_gen_movi_tl(t0, rd >> 3); 2005 gen_helper_extpdp(t0, t0, v1_t, cpu_env); 2006 gen_store_gpr(t0, ret); 2007 break; 2008 case NM_MSUBU: 2009 check_dsp(ctx); 2010 { 2011 int acc = extract32(ctx->opcode, 14, 2); 2012 TCGv_i64 t2 = tcg_temp_new_i64(); 2013 TCGv_i64 t3 = tcg_temp_new_i64(); 2014 2015 gen_load_gpr(t0, rs); 2016 gen_load_gpr(t1, rt); 2017 tcg_gen_ext32u_tl(t0, t0); 2018 tcg_gen_ext32u_tl(t1, t1); 2019 tcg_gen_extu_tl_i64(t2, t0); 2020 tcg_gen_extu_tl_i64(t3, t1); 2021 tcg_gen_mul_i64(t2, t2, t3); 2022 tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]); 2023 tcg_gen_sub_i64(t2, t3, t2); 2024 tcg_temp_free_i64(t3); 2025 gen_move_low32(cpu_LO[acc], t2); 2026 gen_move_high32(cpu_HI[acc], t2); 2027 tcg_temp_free_i64(t2); 2028 } 2029 break; 2030 case NM_EXTRV_S_H: 2031 check_dsp(ctx); 2032 tcg_gen_movi_tl(t0, rd >> 3); 2033 gen_helper_extr_s_h(t0, t0, v0_t, cpu_env); 2034 gen_store_gpr(t0, ret); 2035 break; 2036 } 2037 break; 2038 default: 2039 gen_reserved_instruction(ctx); 2040 break; 2041 } 2042 2043 tcg_temp_free(t0); 2044 tcg_temp_free(t1); 2045 2046 tcg_temp_free(v0_t); 2047 tcg_temp_free(v1_t); 2048} 2049 2050static void gen_pool32axf_4_nanomips_insn(DisasContext *ctx, uint32_t opc, 2051 int rt, int rs) 2052{ 2053 int ret = rt; 2054 TCGv t0 = tcg_temp_new(); 2055 TCGv v0_t = tcg_temp_new(); 2056 2057 gen_load_gpr(v0_t, rs); 2058 2059 switch (opc) { 2060 case NM_ABSQ_S_QB: 2061 check_dsp_r2(ctx); 2062 gen_helper_absq_s_qb(v0_t, v0_t, cpu_env); 2063 gen_store_gpr(v0_t, ret); 2064 break; 2065 case NM_ABSQ_S_PH: 2066 check_dsp(ctx); 2067 gen_helper_absq_s_ph(v0_t, v0_t, cpu_env); 2068 gen_store_gpr(v0_t, ret); 2069 break; 2070 case NM_ABSQ_S_W: 2071 check_dsp(ctx); 2072 gen_helper_absq_s_w(v0_t, v0_t, cpu_env); 2073 gen_store_gpr(v0_t, ret); 2074 break; 2075 case NM_PRECEQ_W_PHL: 2076 check_dsp(ctx); 2077 tcg_gen_andi_tl(v0_t, v0_t, 0xFFFF0000); 2078 tcg_gen_ext32s_tl(v0_t, v0_t); 2079 gen_store_gpr(v0_t, ret); 2080 break; 2081 case NM_PRECEQ_W_PHR: 2082 check_dsp(ctx); 2083 tcg_gen_andi_tl(v0_t, v0_t, 0x0000FFFF); 2084 tcg_gen_shli_tl(v0_t, v0_t, 16); 2085 tcg_gen_ext32s_tl(v0_t, v0_t); 2086 gen_store_gpr(v0_t, ret); 2087 break; 2088 case NM_PRECEQU_PH_QBL: 2089 check_dsp(ctx); 2090 gen_helper_precequ_ph_qbl(v0_t, v0_t); 2091 gen_store_gpr(v0_t, ret); 2092 break; 2093 case NM_PRECEQU_PH_QBR: 2094 check_dsp(ctx); 2095 gen_helper_precequ_ph_qbr(v0_t, v0_t); 2096 gen_store_gpr(v0_t, ret); 2097 break; 2098 case NM_PRECEQU_PH_QBLA: 2099 check_dsp(ctx); 2100 gen_helper_precequ_ph_qbla(v0_t, v0_t); 2101 gen_store_gpr(v0_t, ret); 2102 break; 2103 case NM_PRECEQU_PH_QBRA: 2104 check_dsp(ctx); 2105 gen_helper_precequ_ph_qbra(v0_t, v0_t); 2106 gen_store_gpr(v0_t, ret); 2107 break; 2108 case NM_PRECEU_PH_QBL: 2109 check_dsp(ctx); 2110 gen_helper_preceu_ph_qbl(v0_t, v0_t); 2111 gen_store_gpr(v0_t, ret); 2112 break; 2113 case NM_PRECEU_PH_QBR: 2114 check_dsp(ctx); 2115 gen_helper_preceu_ph_qbr(v0_t, v0_t); 2116 gen_store_gpr(v0_t, ret); 2117 break; 2118 case NM_PRECEU_PH_QBLA: 2119 check_dsp(ctx); 2120 gen_helper_preceu_ph_qbla(v0_t, v0_t); 2121 gen_store_gpr(v0_t, ret); 2122 break; 2123 case NM_PRECEU_PH_QBRA: 2124 check_dsp(ctx); 2125 gen_helper_preceu_ph_qbra(v0_t, v0_t); 2126 gen_store_gpr(v0_t, ret); 2127 break; 2128 case NM_REPLV_PH: 2129 check_dsp(ctx); 2130 tcg_gen_ext16u_tl(v0_t, v0_t); 2131 tcg_gen_shli_tl(t0, v0_t, 16); 2132 tcg_gen_or_tl(v0_t, v0_t, t0); 2133 tcg_gen_ext32s_tl(v0_t, v0_t); 2134 gen_store_gpr(v0_t, ret); 2135 break; 2136 case NM_REPLV_QB: 2137 check_dsp(ctx); 2138 tcg_gen_ext8u_tl(v0_t, v0_t); 2139 tcg_gen_shli_tl(t0, v0_t, 8); 2140 tcg_gen_or_tl(v0_t, v0_t, t0); 2141 tcg_gen_shli_tl(t0, v0_t, 16); 2142 tcg_gen_or_tl(v0_t, v0_t, t0); 2143 tcg_gen_ext32s_tl(v0_t, v0_t); 2144 gen_store_gpr(v0_t, ret); 2145 break; 2146 case NM_BITREV: 2147 check_dsp(ctx); 2148 gen_helper_bitrev(v0_t, v0_t); 2149 gen_store_gpr(v0_t, ret); 2150 break; 2151 case NM_INSV: 2152 check_dsp(ctx); 2153 { 2154 TCGv tv0 = tcg_temp_new(); 2155 2156 gen_load_gpr(tv0, rt); 2157 gen_helper_insv(v0_t, cpu_env, v0_t, tv0); 2158 gen_store_gpr(v0_t, ret); 2159 tcg_temp_free(tv0); 2160 } 2161 break; 2162 case NM_RADDU_W_QB: 2163 check_dsp(ctx); 2164 gen_helper_raddu_w_qb(v0_t, v0_t); 2165 gen_store_gpr(v0_t, ret); 2166 break; 2167 case NM_BITSWAP: 2168 gen_bitswap(ctx, OPC_BITSWAP, ret, rs); 2169 break; 2170 case NM_CLO: 2171 check_nms(ctx); 2172 gen_cl(ctx, OPC_CLO, ret, rs); 2173 break; 2174 case NM_CLZ: 2175 check_nms(ctx); 2176 gen_cl(ctx, OPC_CLZ, ret, rs); 2177 break; 2178 case NM_WSBH: 2179 gen_bshfl(ctx, OPC_WSBH, ret, rs); 2180 break; 2181 default: 2182 gen_reserved_instruction(ctx); 2183 break; 2184 } 2185 2186 tcg_temp_free(v0_t); 2187 tcg_temp_free(t0); 2188} 2189 2190static void gen_pool32axf_7_nanomips_insn(DisasContext *ctx, uint32_t opc, 2191 int rt, int rs, int rd) 2192{ 2193 TCGv t0 = tcg_temp_new(); 2194 TCGv rs_t = tcg_temp_new(); 2195 2196 gen_load_gpr(rs_t, rs); 2197 2198 switch (opc) { 2199 case NM_SHRA_R_QB: 2200 check_dsp_r2(ctx); 2201 tcg_gen_movi_tl(t0, rd >> 2); 2202 switch (extract32(ctx->opcode, 12, 1)) { 2203 case 0: 2204 /* NM_SHRA_QB */ 2205 gen_helper_shra_qb(t0, t0, rs_t); 2206 gen_store_gpr(t0, rt); 2207 break; 2208 case 1: 2209 /* NM_SHRA_R_QB */ 2210 gen_helper_shra_r_qb(t0, t0, rs_t); 2211 gen_store_gpr(t0, rt); 2212 break; 2213 } 2214 break; 2215 case NM_SHRL_PH: 2216 check_dsp_r2(ctx); 2217 tcg_gen_movi_tl(t0, rd >> 1); 2218 gen_helper_shrl_ph(t0, t0, rs_t); 2219 gen_store_gpr(t0, rt); 2220 break; 2221 case NM_REPL_QB: 2222 check_dsp(ctx); 2223 { 2224 int16_t imm; 2225 target_long result; 2226 imm = extract32(ctx->opcode, 13, 8); 2227 result = (uint32_t)imm << 24 | 2228 (uint32_t)imm << 16 | 2229 (uint32_t)imm << 8 | 2230 (uint32_t)imm; 2231 result = (int32_t)result; 2232 tcg_gen_movi_tl(t0, result); 2233 gen_store_gpr(t0, rt); 2234 } 2235 break; 2236 default: 2237 gen_reserved_instruction(ctx); 2238 break; 2239 } 2240 tcg_temp_free(t0); 2241 tcg_temp_free(rs_t); 2242} 2243 2244 2245static void gen_pool32axf_nanomips_insn(CPUMIPSState *env, DisasContext *ctx) 2246{ 2247 int rt = extract32(ctx->opcode, 21, 5); 2248 int rs = extract32(ctx->opcode, 16, 5); 2249 int rd = extract32(ctx->opcode, 11, 5); 2250 2251 switch (extract32(ctx->opcode, 6, 3)) { 2252 case NM_POOL32AXF_1: 2253 { 2254 int32_t op1 = extract32(ctx->opcode, 9, 3); 2255 gen_pool32axf_1_nanomips_insn(ctx, op1, rt, rs, rd); 2256 } 2257 break; 2258 case NM_POOL32AXF_2: 2259 { 2260 int32_t op1 = extract32(ctx->opcode, 12, 2); 2261 gen_pool32axf_2_nanomips_insn(ctx, op1, rt, rs, rd); 2262 } 2263 break; 2264 case NM_POOL32AXF_4: 2265 { 2266 int32_t op1 = extract32(ctx->opcode, 9, 7); 2267 gen_pool32axf_4_nanomips_insn(ctx, op1, rt, rs); 2268 } 2269 break; 2270 case NM_POOL32AXF_5: 2271 switch (extract32(ctx->opcode, 9, 7)) { 2272#ifndef CONFIG_USER_ONLY 2273 case NM_TLBP: 2274 gen_cp0(env, ctx, OPC_TLBP, 0, 0); 2275 break; 2276 case NM_TLBR: 2277 gen_cp0(env, ctx, OPC_TLBR, 0, 0); 2278 break; 2279 case NM_TLBWI: 2280 gen_cp0(env, ctx, OPC_TLBWI, 0, 0); 2281 break; 2282 case NM_TLBWR: 2283 gen_cp0(env, ctx, OPC_TLBWR, 0, 0); 2284 break; 2285 case NM_TLBINV: 2286 gen_cp0(env, ctx, OPC_TLBINV, 0, 0); 2287 break; 2288 case NM_TLBINVF: 2289 gen_cp0(env, ctx, OPC_TLBINVF, 0, 0); 2290 break; 2291 case NM_DI: 2292 check_cp0_enabled(ctx); 2293 { 2294 TCGv t0 = tcg_temp_new(); 2295 2296 save_cpu_state(ctx, 1); 2297 gen_helper_di(t0, cpu_env); 2298 gen_store_gpr(t0, rt); 2299 /* Stop translation as we may have switched the execution mode */ 2300 ctx->base.is_jmp = DISAS_STOP; 2301 tcg_temp_free(t0); 2302 } 2303 break; 2304 case NM_EI: 2305 check_cp0_enabled(ctx); 2306 { 2307 TCGv t0 = tcg_temp_new(); 2308 2309 save_cpu_state(ctx, 1); 2310 gen_helper_ei(t0, cpu_env); 2311 gen_store_gpr(t0, rt); 2312 /* Stop translation as we may have switched the execution mode */ 2313 ctx->base.is_jmp = DISAS_STOP; 2314 tcg_temp_free(t0); 2315 } 2316 break; 2317 case NM_RDPGPR: 2318 check_cp0_enabled(ctx); 2319 gen_load_srsgpr(rs, rt); 2320 break; 2321 case NM_WRPGPR: 2322 check_cp0_enabled(ctx); 2323 gen_store_srsgpr(rs, rt); 2324 break; 2325 case NM_WAIT: 2326 gen_cp0(env, ctx, OPC_WAIT, 0, 0); 2327 break; 2328 case NM_DERET: 2329 gen_cp0(env, ctx, OPC_DERET, 0, 0); 2330 break; 2331 case NM_ERETX: 2332 gen_cp0(env, ctx, OPC_ERET, 0, 0); 2333 break; 2334#endif 2335 default: 2336 gen_reserved_instruction(ctx); 2337 break; 2338 } 2339 break; 2340 case NM_POOL32AXF_7: 2341 { 2342 int32_t op1 = extract32(ctx->opcode, 9, 3); 2343 gen_pool32axf_7_nanomips_insn(ctx, op1, rt, rs, rd); 2344 } 2345 break; 2346 default: 2347 gen_reserved_instruction(ctx); 2348 break; 2349 } 2350} 2351 2352/* Immediate Value Compact Branches */ 2353static void gen_compute_imm_branch(DisasContext *ctx, uint32_t opc, 2354 int rt, int32_t imm, int32_t offset) 2355{ 2356 TCGCond cond = TCG_COND_ALWAYS; 2357 TCGv t0 = tcg_temp_new(); 2358 TCGv t1 = tcg_temp_new(); 2359 2360 gen_load_gpr(t0, rt); 2361 tcg_gen_movi_tl(t1, imm); 2362 ctx->btarget = addr_add(ctx, ctx->base.pc_next + 4, offset); 2363 2364 /* Load needed operands and calculate btarget */ 2365 switch (opc) { 2366 case NM_BEQIC: 2367 if (rt == 0 && imm == 0) { 2368 /* Unconditional branch */ 2369 } else if (rt == 0 && imm != 0) { 2370 /* Treat as NOP */ 2371 goto out; 2372 } else { 2373 cond = TCG_COND_EQ; 2374 } 2375 break; 2376 case NM_BBEQZC: 2377 case NM_BBNEZC: 2378 check_nms(ctx); 2379 if (imm >= 32 && !(ctx->hflags & MIPS_HFLAG_64)) { 2380 gen_reserved_instruction(ctx); 2381 goto out; 2382 } else if (rt == 0 && opc == NM_BBEQZC) { 2383 /* Unconditional branch */ 2384 } else if (rt == 0 && opc == NM_BBNEZC) { 2385 /* Treat as NOP */ 2386 goto out; 2387 } else { 2388 tcg_gen_shri_tl(t0, t0, imm); 2389 tcg_gen_andi_tl(t0, t0, 1); 2390 tcg_gen_movi_tl(t1, 0); 2391 if (opc == NM_BBEQZC) { 2392 cond = TCG_COND_EQ; 2393 } else { 2394 cond = TCG_COND_NE; 2395 } 2396 } 2397 break; 2398 case NM_BNEIC: 2399 if (rt == 0 && imm == 0) { 2400 /* Treat as NOP */ 2401 goto out; 2402 } else if (rt == 0 && imm != 0) { 2403 /* Unconditional branch */ 2404 } else { 2405 cond = TCG_COND_NE; 2406 } 2407 break; 2408 case NM_BGEIC: 2409 if (rt == 0 && imm == 0) { 2410 /* Unconditional branch */ 2411 } else { 2412 cond = TCG_COND_GE; 2413 } 2414 break; 2415 case NM_BLTIC: 2416 cond = TCG_COND_LT; 2417 break; 2418 case NM_BGEIUC: 2419 if (rt == 0 && imm == 0) { 2420 /* Unconditional branch */ 2421 } else { 2422 cond = TCG_COND_GEU; 2423 } 2424 break; 2425 case NM_BLTIUC: 2426 cond = TCG_COND_LTU; 2427 break; 2428 default: 2429 MIPS_INVAL("Immediate Value Compact branch"); 2430 gen_reserved_instruction(ctx); 2431 goto out; 2432 } 2433 2434 /* branch completion */ 2435 clear_branch_hflags(ctx); 2436 ctx->base.is_jmp = DISAS_NORETURN; 2437 2438 if (cond == TCG_COND_ALWAYS) { 2439 /* Uncoditional compact branch */ 2440 gen_goto_tb(ctx, 0, ctx->btarget); 2441 } else { 2442 /* Conditional compact branch */ 2443 TCGLabel *fs = gen_new_label(); 2444 2445 tcg_gen_brcond_tl(tcg_invert_cond(cond), t0, t1, fs); 2446 2447 gen_goto_tb(ctx, 1, ctx->btarget); 2448 gen_set_label(fs); 2449 2450 gen_goto_tb(ctx, 0, ctx->base.pc_next + 4); 2451 } 2452 2453out: 2454 tcg_temp_free(t0); 2455 tcg_temp_free(t1); 2456} 2457 2458/* P.BALRSC type nanoMIPS R6 branches: BALRSC and BRSC */ 2459static void gen_compute_nanomips_pbalrsc_branch(DisasContext *ctx, int rs, 2460 int rt) 2461{ 2462 TCGv t0 = tcg_temp_new(); 2463 TCGv t1 = tcg_temp_new(); 2464 2465 /* load rs */ 2466 gen_load_gpr(t0, rs); 2467 2468 /* link */ 2469 if (rt != 0) { 2470 tcg_gen_movi_tl(cpu_gpr[rt], ctx->base.pc_next + 4); 2471 } 2472 2473 /* calculate btarget */ 2474 tcg_gen_shli_tl(t0, t0, 1); 2475 tcg_gen_movi_tl(t1, ctx->base.pc_next + 4); 2476 gen_op_addr_add(ctx, btarget, t1, t0); 2477 2478 /* branch completion */ 2479 clear_branch_hflags(ctx); 2480 ctx->base.is_jmp = DISAS_NORETURN; 2481 2482 /* unconditional branch to register */ 2483 tcg_gen_mov_tl(cpu_PC, btarget); 2484 tcg_gen_lookup_and_goto_ptr(); 2485 2486 tcg_temp_free(t0); 2487 tcg_temp_free(t1); 2488} 2489 2490/* nanoMIPS Branches */ 2491static void gen_compute_compact_branch_nm(DisasContext *ctx, uint32_t opc, 2492 int rs, int rt, int32_t offset) 2493{ 2494 int bcond_compute = 0; 2495 TCGv t0 = tcg_temp_new(); 2496 TCGv t1 = tcg_temp_new(); 2497 2498 /* Load needed operands and calculate btarget */ 2499 switch (opc) { 2500 /* compact branch */ 2501 case OPC_BGEC: 2502 case OPC_BLTC: 2503 gen_load_gpr(t0, rs); 2504 gen_load_gpr(t1, rt); 2505 bcond_compute = 1; 2506 ctx->btarget = addr_add(ctx, ctx->base.pc_next + 4, offset); 2507 break; 2508 case OPC_BGEUC: 2509 case OPC_BLTUC: 2510 if (rs == 0 || rs == rt) { 2511 /* OPC_BLEZALC, OPC_BGEZALC */ 2512 /* OPC_BGTZALC, OPC_BLTZALC */ 2513 tcg_gen_movi_tl(cpu_gpr[31], ctx->base.pc_next + 4); 2514 } 2515 gen_load_gpr(t0, rs); 2516 gen_load_gpr(t1, rt); 2517 bcond_compute = 1; 2518 ctx->btarget = addr_add(ctx, ctx->base.pc_next + 4, offset); 2519 break; 2520 case OPC_BC: 2521 ctx->btarget = addr_add(ctx, ctx->base.pc_next + 4, offset); 2522 break; 2523 case OPC_BEQZC: 2524 if (rs != 0) { 2525 /* OPC_BEQZC, OPC_BNEZC */ 2526 gen_load_gpr(t0, rs); 2527 bcond_compute = 1; 2528 ctx->btarget = addr_add(ctx, ctx->base.pc_next + 4, offset); 2529 } else { 2530 /* OPC_JIC, OPC_JIALC */ 2531 TCGv tbase = tcg_temp_new(); 2532 TCGv toffset = tcg_temp_new(); 2533 2534 gen_load_gpr(tbase, rt); 2535 tcg_gen_movi_tl(toffset, offset); 2536 gen_op_addr_add(ctx, btarget, tbase, toffset); 2537 tcg_temp_free(tbase); 2538 tcg_temp_free(toffset); 2539 } 2540 break; 2541 default: 2542 MIPS_INVAL("Compact branch/jump"); 2543 gen_reserved_instruction(ctx); 2544 goto out; 2545 } 2546 2547 if (bcond_compute == 0) { 2548 /* Uncoditional compact branch */ 2549 switch (opc) { 2550 case OPC_BC: 2551 gen_goto_tb(ctx, 0, ctx->btarget); 2552 break; 2553 default: 2554 MIPS_INVAL("Compact branch/jump"); 2555 gen_reserved_instruction(ctx); 2556 goto out; 2557 } 2558 } else { 2559 /* Conditional compact branch */ 2560 TCGLabel *fs = gen_new_label(); 2561 2562 switch (opc) { 2563 case OPC_BGEUC: 2564 if (rs == 0 && rt != 0) { 2565 /* OPC_BLEZALC */ 2566 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_LE), t1, 0, fs); 2567 } else if (rs != 0 && rt != 0 && rs == rt) { 2568 /* OPC_BGEZALC */ 2569 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_GE), t1, 0, fs); 2570 } else { 2571 /* OPC_BGEUC */ 2572 tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_GEU), t0, t1, fs); 2573 } 2574 break; 2575 case OPC_BLTUC: 2576 if (rs == 0 && rt != 0) { 2577 /* OPC_BGTZALC */ 2578 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_GT), t1, 0, fs); 2579 } else if (rs != 0 && rt != 0 && rs == rt) { 2580 /* OPC_BLTZALC */ 2581 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_LT), t1, 0, fs); 2582 } else { 2583 /* OPC_BLTUC */ 2584 tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_LTU), t0, t1, fs); 2585 } 2586 break; 2587 case OPC_BGEC: 2588 if (rs == 0 && rt != 0) { 2589 /* OPC_BLEZC */ 2590 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_LE), t1, 0, fs); 2591 } else if (rs != 0 && rt != 0 && rs == rt) { 2592 /* OPC_BGEZC */ 2593 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_GE), t1, 0, fs); 2594 } else { 2595 /* OPC_BGEC */ 2596 tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_GE), t0, t1, fs); 2597 } 2598 break; 2599 case OPC_BLTC: 2600 if (rs == 0 && rt != 0) { 2601 /* OPC_BGTZC */ 2602 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_GT), t1, 0, fs); 2603 } else if (rs != 0 && rt != 0 && rs == rt) { 2604 /* OPC_BLTZC */ 2605 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_LT), t1, 0, fs); 2606 } else { 2607 /* OPC_BLTC */ 2608 tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_LT), t0, t1, fs); 2609 } 2610 break; 2611 case OPC_BEQZC: 2612 tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_EQ), t0, 0, fs); 2613 break; 2614 default: 2615 MIPS_INVAL("Compact conditional branch/jump"); 2616 gen_reserved_instruction(ctx); 2617 goto out; 2618 } 2619 2620 /* branch completion */ 2621 clear_branch_hflags(ctx); 2622 ctx->base.is_jmp = DISAS_NORETURN; 2623 2624 /* Generating branch here as compact branches don't have delay slot */ 2625 gen_goto_tb(ctx, 1, ctx->btarget); 2626 gen_set_label(fs); 2627 2628 gen_goto_tb(ctx, 0, ctx->base.pc_next + 4); 2629 } 2630 2631out: 2632 tcg_temp_free(t0); 2633 tcg_temp_free(t1); 2634} 2635 2636 2637/* nanoMIPS CP1 Branches */ 2638static void gen_compute_branch_cp1_nm(DisasContext *ctx, uint32_t op, 2639 int32_t ft, int32_t offset) 2640{ 2641 target_ulong btarget; 2642 TCGv_i64 t0 = tcg_temp_new_i64(); 2643 2644 gen_load_fpr64(ctx, t0, ft); 2645 tcg_gen_andi_i64(t0, t0, 1); 2646 2647 btarget = addr_add(ctx, ctx->base.pc_next + 4, offset); 2648 2649 switch (op) { 2650 case NM_BC1EQZC: 2651 tcg_gen_xori_i64(t0, t0, 1); 2652 ctx->hflags |= MIPS_HFLAG_BC; 2653 break; 2654 case NM_BC1NEZC: 2655 /* t0 already set */ 2656 ctx->hflags |= MIPS_HFLAG_BC; 2657 break; 2658 default: 2659 MIPS_INVAL("cp1 cond branch"); 2660 gen_reserved_instruction(ctx); 2661 goto out; 2662 } 2663 2664 tcg_gen_trunc_i64_tl(bcond, t0); 2665 2666 ctx->btarget = btarget; 2667 2668out: 2669 tcg_temp_free_i64(t0); 2670} 2671 2672 2673static void gen_p_lsx(DisasContext *ctx, int rd, int rs, int rt) 2674{ 2675 TCGv t0, t1; 2676 t0 = tcg_temp_new(); 2677 t1 = tcg_temp_new(); 2678 2679 gen_load_gpr(t0, rs); 2680 gen_load_gpr(t1, rt); 2681 2682 if ((extract32(ctx->opcode, 6, 1)) == 1) { 2683 /* PP.LSXS instructions require shifting */ 2684 switch (extract32(ctx->opcode, 7, 4)) { 2685 case NM_SHXS: 2686 check_nms(ctx); 2687 /* fall through */ 2688 case NM_LHXS: 2689 case NM_LHUXS: 2690 tcg_gen_shli_tl(t0, t0, 1); 2691 break; 2692 case NM_SWXS: 2693 check_nms(ctx); 2694 /* fall through */ 2695 case NM_LWXS: 2696 case NM_LWC1XS: 2697 case NM_SWC1XS: 2698 tcg_gen_shli_tl(t0, t0, 2); 2699 break; 2700 case NM_LDC1XS: 2701 case NM_SDC1XS: 2702 tcg_gen_shli_tl(t0, t0, 3); 2703 break; 2704 } 2705 } 2706 gen_op_addr_add(ctx, t0, t0, t1); 2707 2708 switch (extract32(ctx->opcode, 7, 4)) { 2709 case NM_LBX: 2710 tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, 2711 MO_SB); 2712 gen_store_gpr(t0, rd); 2713 break; 2714 case NM_LHX: 2715 /*case NM_LHXS:*/ 2716 tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, 2717 MO_TESW); 2718 gen_store_gpr(t0, rd); 2719 break; 2720 case NM_LWX: 2721 /*case NM_LWXS:*/ 2722 tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, 2723 MO_TESL); 2724 gen_store_gpr(t0, rd); 2725 break; 2726 case NM_LBUX: 2727 tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, 2728 MO_UB); 2729 gen_store_gpr(t0, rd); 2730 break; 2731 case NM_LHUX: 2732 /*case NM_LHUXS:*/ 2733 tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, 2734 MO_TEUW); 2735 gen_store_gpr(t0, rd); 2736 break; 2737 case NM_SBX: 2738 check_nms(ctx); 2739 gen_load_gpr(t1, rd); 2740 tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, 2741 MO_8); 2742 break; 2743 case NM_SHX: 2744 /*case NM_SHXS:*/ 2745 check_nms(ctx); 2746 gen_load_gpr(t1, rd); 2747 tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, 2748 MO_TEUW); 2749 break; 2750 case NM_SWX: 2751 /*case NM_SWXS:*/ 2752 check_nms(ctx); 2753 gen_load_gpr(t1, rd); 2754 tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, 2755 MO_TEUL); 2756 break; 2757 case NM_LWC1X: 2758 /*case NM_LWC1XS:*/ 2759 case NM_LDC1X: 2760 /*case NM_LDC1XS:*/ 2761 case NM_SWC1X: 2762 /*case NM_SWC1XS:*/ 2763 case NM_SDC1X: 2764 /*case NM_SDC1XS:*/ 2765 if (ctx->CP0_Config1 & (1 << CP0C1_FP)) { 2766 check_cp1_enabled(ctx); 2767 switch (extract32(ctx->opcode, 7, 4)) { 2768 case NM_LWC1X: 2769 /*case NM_LWC1XS:*/ 2770 gen_flt_ldst(ctx, OPC_LWC1, rd, t0); 2771 break; 2772 case NM_LDC1X: 2773 /*case NM_LDC1XS:*/ 2774 gen_flt_ldst(ctx, OPC_LDC1, rd, t0); 2775 break; 2776 case NM_SWC1X: 2777 /*case NM_SWC1XS:*/ 2778 gen_flt_ldst(ctx, OPC_SWC1, rd, t0); 2779 break; 2780 case NM_SDC1X: 2781 /*case NM_SDC1XS:*/ 2782 gen_flt_ldst(ctx, OPC_SDC1, rd, t0); 2783 break; 2784 } 2785 } else { 2786 generate_exception_err(ctx, EXCP_CpU, 1); 2787 } 2788 break; 2789 default: 2790 gen_reserved_instruction(ctx); 2791 break; 2792 } 2793 2794 tcg_temp_free(t0); 2795 tcg_temp_free(t1); 2796} 2797 2798static void gen_pool32f_nanomips_insn(DisasContext *ctx) 2799{ 2800 int rt, rs, rd; 2801 2802 rt = extract32(ctx->opcode, 21, 5); 2803 rs = extract32(ctx->opcode, 16, 5); 2804 rd = extract32(ctx->opcode, 11, 5); 2805 2806 if (!(ctx->CP0_Config1 & (1 << CP0C1_FP))) { 2807 gen_reserved_instruction(ctx); 2808 return; 2809 } 2810 check_cp1_enabled(ctx); 2811 switch (extract32(ctx->opcode, 0, 3)) { 2812 case NM_POOL32F_0: 2813 switch (extract32(ctx->opcode, 3, 7)) { 2814 case NM_RINT_S: 2815 gen_farith(ctx, OPC_RINT_S, 0, rt, rs, 0); 2816 break; 2817 case NM_RINT_D: 2818 gen_farith(ctx, OPC_RINT_D, 0, rt, rs, 0); 2819 break; 2820 case NM_CLASS_S: 2821 gen_farith(ctx, OPC_CLASS_S, 0, rt, rs, 0); 2822 break; 2823 case NM_CLASS_D: 2824 gen_farith(ctx, OPC_CLASS_D, 0, rt, rs, 0); 2825 break; 2826 case NM_ADD_S: 2827 gen_farith(ctx, OPC_ADD_S, rt, rs, rd, 0); 2828 break; 2829 case NM_ADD_D: 2830 gen_farith(ctx, OPC_ADD_D, rt, rs, rd, 0); 2831 break; 2832 case NM_SUB_S: 2833 gen_farith(ctx, OPC_SUB_S, rt, rs, rd, 0); 2834 break; 2835 case NM_SUB_D: 2836 gen_farith(ctx, OPC_SUB_D, rt, rs, rd, 0); 2837 break; 2838 case NM_MUL_S: 2839 gen_farith(ctx, OPC_MUL_S, rt, rs, rd, 0); 2840 break; 2841 case NM_MUL_D: 2842 gen_farith(ctx, OPC_MUL_D, rt, rs, rd, 0); 2843 break; 2844 case NM_DIV_S: 2845 gen_farith(ctx, OPC_DIV_S, rt, rs, rd, 0); 2846 break; 2847 case NM_DIV_D: 2848 gen_farith(ctx, OPC_DIV_D, rt, rs, rd, 0); 2849 break; 2850 case NM_SELEQZ_S: 2851 gen_sel_s(ctx, OPC_SELEQZ_S, rd, rt, rs); 2852 break; 2853 case NM_SELEQZ_D: 2854 gen_sel_d(ctx, OPC_SELEQZ_D, rd, rt, rs); 2855 break; 2856 case NM_SELNEZ_S: 2857 gen_sel_s(ctx, OPC_SELNEZ_S, rd, rt, rs); 2858 break; 2859 case NM_SELNEZ_D: 2860 gen_sel_d(ctx, OPC_SELNEZ_D, rd, rt, rs); 2861 break; 2862 case NM_SEL_S: 2863 gen_sel_s(ctx, OPC_SEL_S, rd, rt, rs); 2864 break; 2865 case NM_SEL_D: 2866 gen_sel_d(ctx, OPC_SEL_D, rd, rt, rs); 2867 break; 2868 case NM_MADDF_S: 2869 gen_farith(ctx, OPC_MADDF_S, rt, rs, rd, 0); 2870 break; 2871 case NM_MADDF_D: 2872 gen_farith(ctx, OPC_MADDF_D, rt, rs, rd, 0); 2873 break; 2874 case NM_MSUBF_S: 2875 gen_farith(ctx, OPC_MSUBF_S, rt, rs, rd, 0); 2876 break; 2877 case NM_MSUBF_D: 2878 gen_farith(ctx, OPC_MSUBF_D, rt, rs, rd, 0); 2879 break; 2880 default: 2881 gen_reserved_instruction(ctx); 2882 break; 2883 } 2884 break; 2885 case NM_POOL32F_3: 2886 switch (extract32(ctx->opcode, 3, 3)) { 2887 case NM_MIN_FMT: 2888 switch (extract32(ctx->opcode, 9, 1)) { 2889 case FMT_SDPS_S: 2890 gen_farith(ctx, OPC_MIN_S, rt, rs, rd, 0); 2891 break; 2892 case FMT_SDPS_D: 2893 gen_farith(ctx, OPC_MIN_D, rt, rs, rd, 0); 2894 break; 2895 } 2896 break; 2897 case NM_MAX_FMT: 2898 switch (extract32(ctx->opcode, 9, 1)) { 2899 case FMT_SDPS_S: 2900 gen_farith(ctx, OPC_MAX_S, rt, rs, rd, 0); 2901 break; 2902 case FMT_SDPS_D: 2903 gen_farith(ctx, OPC_MAX_D, rt, rs, rd, 0); 2904 break; 2905 } 2906 break; 2907 case NM_MINA_FMT: 2908 switch (extract32(ctx->opcode, 9, 1)) { 2909 case FMT_SDPS_S: 2910 gen_farith(ctx, OPC_MINA_S, rt, rs, rd, 0); 2911 break; 2912 case FMT_SDPS_D: 2913 gen_farith(ctx, OPC_MINA_D, rt, rs, rd, 0); 2914 break; 2915 } 2916 break; 2917 case NM_MAXA_FMT: 2918 switch (extract32(ctx->opcode, 9, 1)) { 2919 case FMT_SDPS_S: 2920 gen_farith(ctx, OPC_MAXA_S, rt, rs, rd, 0); 2921 break; 2922 case FMT_SDPS_D: 2923 gen_farith(ctx, OPC_MAXA_D, rt, rs, rd, 0); 2924 break; 2925 } 2926 break; 2927 case NM_POOL32FXF: 2928 switch (extract32(ctx->opcode, 6, 8)) { 2929 case NM_CFC1: 2930 gen_cp1(ctx, OPC_CFC1, rt, rs); 2931 break; 2932 case NM_CTC1: 2933 gen_cp1(ctx, OPC_CTC1, rt, rs); 2934 break; 2935 case NM_MFC1: 2936 gen_cp1(ctx, OPC_MFC1, rt, rs); 2937 break; 2938 case NM_MTC1: 2939 gen_cp1(ctx, OPC_MTC1, rt, rs); 2940 break; 2941 case NM_MFHC1: 2942 gen_cp1(ctx, OPC_MFHC1, rt, rs); 2943 break; 2944 case NM_MTHC1: 2945 gen_cp1(ctx, OPC_MTHC1, rt, rs); 2946 break; 2947 case NM_CVT_S_PL: 2948 gen_farith(ctx, OPC_CVT_S_PL, -1, rs, rt, 0); 2949 break; 2950 case NM_CVT_S_PU: 2951 gen_farith(ctx, OPC_CVT_S_PU, -1, rs, rt, 0); 2952 break; 2953 default: 2954 switch (extract32(ctx->opcode, 6, 9)) { 2955 case NM_CVT_L_S: 2956 gen_farith(ctx, OPC_CVT_L_S, -1, rs, rt, 0); 2957 break; 2958 case NM_CVT_L_D: 2959 gen_farith(ctx, OPC_CVT_L_D, -1, rs, rt, 0); 2960 break; 2961 case NM_CVT_W_S: 2962 gen_farith(ctx, OPC_CVT_W_S, -1, rs, rt, 0); 2963 break; 2964 case NM_CVT_W_D: 2965 gen_farith(ctx, OPC_CVT_W_D, -1, rs, rt, 0); 2966 break; 2967 case NM_RSQRT_S: 2968 gen_farith(ctx, OPC_RSQRT_S, -1, rs, rt, 0); 2969 break; 2970 case NM_RSQRT_D: 2971 gen_farith(ctx, OPC_RSQRT_D, -1, rs, rt, 0); 2972 break; 2973 case NM_SQRT_S: 2974 gen_farith(ctx, OPC_SQRT_S, -1, rs, rt, 0); 2975 break; 2976 case NM_SQRT_D: 2977 gen_farith(ctx, OPC_SQRT_D, -1, rs, rt, 0); 2978 break; 2979 case NM_RECIP_S: 2980 gen_farith(ctx, OPC_RECIP_S, -1, rs, rt, 0); 2981 break; 2982 case NM_RECIP_D: 2983 gen_farith(ctx, OPC_RECIP_D, -1, rs, rt, 0); 2984 break; 2985 case NM_FLOOR_L_S: 2986 gen_farith(ctx, OPC_FLOOR_L_S, -1, rs, rt, 0); 2987 break; 2988 case NM_FLOOR_L_D: 2989 gen_farith(ctx, OPC_FLOOR_L_D, -1, rs, rt, 0); 2990 break; 2991 case NM_FLOOR_W_S: 2992 gen_farith(ctx, OPC_FLOOR_W_S, -1, rs, rt, 0); 2993 break; 2994 case NM_FLOOR_W_D: 2995 gen_farith(ctx, OPC_FLOOR_W_D, -1, rs, rt, 0); 2996 break; 2997 case NM_CEIL_L_S: 2998 gen_farith(ctx, OPC_CEIL_L_S, -1, rs, rt, 0); 2999 break; 3000 case NM_CEIL_L_D: 3001 gen_farith(ctx, OPC_CEIL_L_D, -1, rs, rt, 0); 3002 break; 3003 case NM_CEIL_W_S: 3004 gen_farith(ctx, OPC_CEIL_W_S, -1, rs, rt, 0); 3005 break; 3006 case NM_CEIL_W_D: 3007 gen_farith(ctx, OPC_CEIL_W_D, -1, rs, rt, 0); 3008 break; 3009 case NM_TRUNC_L_S: 3010 gen_farith(ctx, OPC_TRUNC_L_S, -1, rs, rt, 0); 3011 break; 3012 case NM_TRUNC_L_D: 3013 gen_farith(ctx, OPC_TRUNC_L_D, -1, rs, rt, 0); 3014 break; 3015 case NM_TRUNC_W_S: 3016 gen_farith(ctx, OPC_TRUNC_W_S, -1, rs, rt, 0); 3017 break; 3018 case NM_TRUNC_W_D: 3019 gen_farith(ctx, OPC_TRUNC_W_D, -1, rs, rt, 0); 3020 break; 3021 case NM_ROUND_L_S: 3022 gen_farith(ctx, OPC_ROUND_L_S, -1, rs, rt, 0); 3023 break; 3024 case NM_ROUND_L_D: 3025 gen_farith(ctx, OPC_ROUND_L_D, -1, rs, rt, 0); 3026 break; 3027 case NM_ROUND_W_S: 3028 gen_farith(ctx, OPC_ROUND_W_S, -1, rs, rt, 0); 3029 break; 3030 case NM_ROUND_W_D: 3031 gen_farith(ctx, OPC_ROUND_W_D, -1, rs, rt, 0); 3032 break; 3033 case NM_MOV_S: 3034 gen_farith(ctx, OPC_MOV_S, -1, rs, rt, 0); 3035 break; 3036 case NM_MOV_D: 3037 gen_farith(ctx, OPC_MOV_D, -1, rs, rt, 0); 3038 break; 3039 case NM_ABS_S: 3040 gen_farith(ctx, OPC_ABS_S, -1, rs, rt, 0); 3041 break; 3042 case NM_ABS_D: 3043 gen_farith(ctx, OPC_ABS_D, -1, rs, rt, 0); 3044 break; 3045 case NM_NEG_S: 3046 gen_farith(ctx, OPC_NEG_S, -1, rs, rt, 0); 3047 break; 3048 case NM_NEG_D: 3049 gen_farith(ctx, OPC_NEG_D, -1, rs, rt, 0); 3050 break; 3051 case NM_CVT_D_S: 3052 gen_farith(ctx, OPC_CVT_D_S, -1, rs, rt, 0); 3053 break; 3054 case NM_CVT_D_W: 3055 gen_farith(ctx, OPC_CVT_D_W, -1, rs, rt, 0); 3056 break; 3057 case NM_CVT_D_L: 3058 gen_farith(ctx, OPC_CVT_D_L, -1, rs, rt, 0); 3059 break; 3060 case NM_CVT_S_D: 3061 gen_farith(ctx, OPC_CVT_S_D, -1, rs, rt, 0); 3062 break; 3063 case NM_CVT_S_W: 3064 gen_farith(ctx, OPC_CVT_S_W, -1, rs, rt, 0); 3065 break; 3066 case NM_CVT_S_L: 3067 gen_farith(ctx, OPC_CVT_S_L, -1, rs, rt, 0); 3068 break; 3069 default: 3070 gen_reserved_instruction(ctx); 3071 break; 3072 } 3073 break; 3074 } 3075 break; 3076 } 3077 break; 3078 case NM_POOL32F_5: 3079 switch (extract32(ctx->opcode, 3, 3)) { 3080 case NM_CMP_CONDN_S: 3081 gen_r6_cmp_s(ctx, extract32(ctx->opcode, 6, 5), rt, rs, rd); 3082 break; 3083 case NM_CMP_CONDN_D: 3084 gen_r6_cmp_d(ctx, extract32(ctx->opcode, 6, 5), rt, rs, rd); 3085 break; 3086 default: 3087 gen_reserved_instruction(ctx); 3088 break; 3089 } 3090 break; 3091 default: 3092 gen_reserved_instruction(ctx); 3093 break; 3094 } 3095} 3096 3097static void gen_pool32a5_nanomips_insn(DisasContext *ctx, int opc, 3098 int rd, int rs, int rt) 3099{ 3100 int ret = rd; 3101 TCGv t0 = tcg_temp_new(); 3102 TCGv v1_t = tcg_temp_new(); 3103 TCGv v2_t = tcg_temp_new(); 3104 3105 gen_load_gpr(v1_t, rs); 3106 gen_load_gpr(v2_t, rt); 3107 3108 switch (opc) { 3109 case NM_CMP_EQ_PH: 3110 check_dsp(ctx); 3111 gen_helper_cmp_eq_ph(v1_t, v2_t, cpu_env); 3112 break; 3113 case NM_CMP_LT_PH: 3114 check_dsp(ctx); 3115 gen_helper_cmp_lt_ph(v1_t, v2_t, cpu_env); 3116 break; 3117 case NM_CMP_LE_PH: 3118 check_dsp(ctx); 3119 gen_helper_cmp_le_ph(v1_t, v2_t, cpu_env); 3120 break; 3121 case NM_CMPU_EQ_QB: 3122 check_dsp(ctx); 3123 gen_helper_cmpu_eq_qb(v1_t, v2_t, cpu_env); 3124 break; 3125 case NM_CMPU_LT_QB: 3126 check_dsp(ctx); 3127 gen_helper_cmpu_lt_qb(v1_t, v2_t, cpu_env); 3128 break; 3129 case NM_CMPU_LE_QB: 3130 check_dsp(ctx); 3131 gen_helper_cmpu_le_qb(v1_t, v2_t, cpu_env); 3132 break; 3133 case NM_CMPGU_EQ_QB: 3134 check_dsp(ctx); 3135 gen_helper_cmpgu_eq_qb(v1_t, v1_t, v2_t); 3136 gen_store_gpr(v1_t, ret); 3137 break; 3138 case NM_CMPGU_LT_QB: 3139 check_dsp(ctx); 3140 gen_helper_cmpgu_lt_qb(v1_t, v1_t, v2_t); 3141 gen_store_gpr(v1_t, ret); 3142 break; 3143 case NM_CMPGU_LE_QB: 3144 check_dsp(ctx); 3145 gen_helper_cmpgu_le_qb(v1_t, v1_t, v2_t); 3146 gen_store_gpr(v1_t, ret); 3147 break; 3148 case NM_CMPGDU_EQ_QB: 3149 check_dsp_r2(ctx); 3150 gen_helper_cmpgu_eq_qb(v1_t, v1_t, v2_t); 3151 tcg_gen_deposit_tl(cpu_dspctrl, cpu_dspctrl, v1_t, 24, 4); 3152 gen_store_gpr(v1_t, ret); 3153 break; 3154 case NM_CMPGDU_LT_QB: 3155 check_dsp_r2(ctx); 3156 gen_helper_cmpgu_lt_qb(v1_t, v1_t, v2_t); 3157 tcg_gen_deposit_tl(cpu_dspctrl, cpu_dspctrl, v1_t, 24, 4); 3158 gen_store_gpr(v1_t, ret); 3159 break; 3160 case NM_CMPGDU_LE_QB: 3161 check_dsp_r2(ctx); 3162 gen_helper_cmpgu_le_qb(v1_t, v1_t, v2_t); 3163 tcg_gen_deposit_tl(cpu_dspctrl, cpu_dspctrl, v1_t, 24, 4); 3164 gen_store_gpr(v1_t, ret); 3165 break; 3166 case NM_PACKRL_PH: 3167 check_dsp(ctx); 3168 gen_helper_packrl_ph(v1_t, v1_t, v2_t); 3169 gen_store_gpr(v1_t, ret); 3170 break; 3171 case NM_PICK_QB: 3172 check_dsp(ctx); 3173 gen_helper_pick_qb(v1_t, v1_t, v2_t, cpu_env); 3174 gen_store_gpr(v1_t, ret); 3175 break; 3176 case NM_PICK_PH: 3177 check_dsp(ctx); 3178 gen_helper_pick_ph(v1_t, v1_t, v2_t, cpu_env); 3179 gen_store_gpr(v1_t, ret); 3180 break; 3181 case NM_ADDQ_S_W: 3182 check_dsp(ctx); 3183 gen_helper_addq_s_w(v1_t, v1_t, v2_t, cpu_env); 3184 gen_store_gpr(v1_t, ret); 3185 break; 3186 case NM_SUBQ_S_W: 3187 check_dsp(ctx); 3188 gen_helper_subq_s_w(v1_t, v1_t, v2_t, cpu_env); 3189 gen_store_gpr(v1_t, ret); 3190 break; 3191 case NM_ADDSC: 3192 check_dsp(ctx); 3193 gen_helper_addsc(v1_t, v1_t, v2_t, cpu_env); 3194 gen_store_gpr(v1_t, ret); 3195 break; 3196 case NM_ADDWC: 3197 check_dsp(ctx); 3198 gen_helper_addwc(v1_t, v1_t, v2_t, cpu_env); 3199 gen_store_gpr(v1_t, ret); 3200 break; 3201 case NM_ADDQ_S_PH: 3202 check_dsp(ctx); 3203 switch (extract32(ctx->opcode, 10, 1)) { 3204 case 0: 3205 /* ADDQ_PH */ 3206 gen_helper_addq_ph(v1_t, v1_t, v2_t, cpu_env); 3207 gen_store_gpr(v1_t, ret); 3208 break; 3209 case 1: 3210 /* ADDQ_S_PH */ 3211 gen_helper_addq_s_ph(v1_t, v1_t, v2_t, cpu_env); 3212 gen_store_gpr(v1_t, ret); 3213 break; 3214 } 3215 break; 3216 case NM_ADDQH_R_PH: 3217 check_dsp_r2(ctx); 3218 switch (extract32(ctx->opcode, 10, 1)) { 3219 case 0: 3220 /* ADDQH_PH */ 3221 gen_helper_addqh_ph(v1_t, v1_t, v2_t); 3222 gen_store_gpr(v1_t, ret); 3223 break; 3224 case 1: 3225 /* ADDQH_R_PH */ 3226 gen_helper_addqh_r_ph(v1_t, v1_t, v2_t); 3227 gen_store_gpr(v1_t, ret); 3228 break; 3229 } 3230 break; 3231 case NM_ADDQH_R_W: 3232 check_dsp_r2(ctx); 3233 switch (extract32(ctx->opcode, 10, 1)) { 3234 case 0: 3235 /* ADDQH_W */ 3236 gen_helper_addqh_w(v1_t, v1_t, v2_t); 3237 gen_store_gpr(v1_t, ret); 3238 break; 3239 case 1: 3240 /* ADDQH_R_W */ 3241 gen_helper_addqh_r_w(v1_t, v1_t, v2_t); 3242 gen_store_gpr(v1_t, ret); 3243 break; 3244 } 3245 break; 3246 case NM_ADDU_S_QB: 3247 check_dsp(ctx); 3248 switch (extract32(ctx->opcode, 10, 1)) { 3249 case 0: 3250 /* ADDU_QB */ 3251 gen_helper_addu_qb(v1_t, v1_t, v2_t, cpu_env); 3252 gen_store_gpr(v1_t, ret); 3253 break; 3254 case 1: 3255 /* ADDU_S_QB */ 3256 gen_helper_addu_s_qb(v1_t, v1_t, v2_t, cpu_env); 3257 gen_store_gpr(v1_t, ret); 3258 break; 3259 } 3260 break; 3261 case NM_ADDU_S_PH: 3262 check_dsp_r2(ctx); 3263 switch (extract32(ctx->opcode, 10, 1)) { 3264 case 0: 3265 /* ADDU_PH */ 3266 gen_helper_addu_ph(v1_t, v1_t, v2_t, cpu_env); 3267 gen_store_gpr(v1_t, ret); 3268 break; 3269 case 1: 3270 /* ADDU_S_PH */ 3271 gen_helper_addu_s_ph(v1_t, v1_t, v2_t, cpu_env); 3272 gen_store_gpr(v1_t, ret); 3273 break; 3274 } 3275 break; 3276 case NM_ADDUH_R_QB: 3277 check_dsp_r2(ctx); 3278 switch (extract32(ctx->opcode, 10, 1)) { 3279 case 0: 3280 /* ADDUH_QB */ 3281 gen_helper_adduh_qb(v1_t, v1_t, v2_t); 3282 gen_store_gpr(v1_t, ret); 3283 break; 3284 case 1: 3285 /* ADDUH_R_QB */ 3286 gen_helper_adduh_r_qb(v1_t, v1_t, v2_t); 3287 gen_store_gpr(v1_t, ret); 3288 break; 3289 } 3290 break; 3291 case NM_SHRAV_R_PH: 3292 check_dsp(ctx); 3293 switch (extract32(ctx->opcode, 10, 1)) { 3294 case 0: 3295 /* SHRAV_PH */ 3296 gen_helper_shra_ph(v1_t, v1_t, v2_t); 3297 gen_store_gpr(v1_t, ret); 3298 break; 3299 case 1: 3300 /* SHRAV_R_PH */ 3301 gen_helper_shra_r_ph(v1_t, v1_t, v2_t); 3302 gen_store_gpr(v1_t, ret); 3303 break; 3304 } 3305 break; 3306 case NM_SHRAV_R_QB: 3307 check_dsp_r2(ctx); 3308 switch (extract32(ctx->opcode, 10, 1)) { 3309 case 0: 3310 /* SHRAV_QB */ 3311 gen_helper_shra_qb(v1_t, v1_t, v2_t); 3312 gen_store_gpr(v1_t, ret); 3313 break; 3314 case 1: 3315 /* SHRAV_R_QB */ 3316 gen_helper_shra_r_qb(v1_t, v1_t, v2_t); 3317 gen_store_gpr(v1_t, ret); 3318 break; 3319 } 3320 break; 3321 case NM_SUBQ_S_PH: 3322 check_dsp(ctx); 3323 switch (extract32(ctx->opcode, 10, 1)) { 3324 case 0: 3325 /* SUBQ_PH */ 3326 gen_helper_subq_ph(v1_t, v1_t, v2_t, cpu_env); 3327 gen_store_gpr(v1_t, ret); 3328 break; 3329 case 1: 3330 /* SUBQ_S_PH */ 3331 gen_helper_subq_s_ph(v1_t, v1_t, v2_t, cpu_env); 3332 gen_store_gpr(v1_t, ret); 3333 break; 3334 } 3335 break; 3336 case NM_SUBQH_R_PH: 3337 check_dsp_r2(ctx); 3338 switch (extract32(ctx->opcode, 10, 1)) { 3339 case 0: 3340 /* SUBQH_PH */ 3341 gen_helper_subqh_ph(v1_t, v1_t, v2_t); 3342 gen_store_gpr(v1_t, ret); 3343 break; 3344 case 1: 3345 /* SUBQH_R_PH */ 3346 gen_helper_subqh_r_ph(v1_t, v1_t, v2_t); 3347 gen_store_gpr(v1_t, ret); 3348 break; 3349 } 3350 break; 3351 case NM_SUBQH_R_W: 3352 check_dsp_r2(ctx); 3353 switch (extract32(ctx->opcode, 10, 1)) { 3354 case 0: 3355 /* SUBQH_W */ 3356 gen_helper_subqh_w(v1_t, v1_t, v2_t); 3357 gen_store_gpr(v1_t, ret); 3358 break; 3359 case 1: 3360 /* SUBQH_R_W */ 3361 gen_helper_subqh_r_w(v1_t, v1_t, v2_t); 3362 gen_store_gpr(v1_t, ret); 3363 break; 3364 } 3365 break; 3366 case NM_SUBU_S_QB: 3367 check_dsp(ctx); 3368 switch (extract32(ctx->opcode, 10, 1)) { 3369 case 0: 3370 /* SUBU_QB */ 3371 gen_helper_subu_qb(v1_t, v1_t, v2_t, cpu_env); 3372 gen_store_gpr(v1_t, ret); 3373 break; 3374 case 1: 3375 /* SUBU_S_QB */ 3376 gen_helper_subu_s_qb(v1_t, v1_t, v2_t, cpu_env); 3377 gen_store_gpr(v1_t, ret); 3378 break; 3379 } 3380 break; 3381 case NM_SUBU_S_PH: 3382 check_dsp_r2(ctx); 3383 switch (extract32(ctx->opcode, 10, 1)) { 3384 case 0: 3385 /* SUBU_PH */ 3386 gen_helper_subu_ph(v1_t, v1_t, v2_t, cpu_env); 3387 gen_store_gpr(v1_t, ret); 3388 break; 3389 case 1: 3390 /* SUBU_S_PH */ 3391 gen_helper_subu_s_ph(v1_t, v1_t, v2_t, cpu_env); 3392 gen_store_gpr(v1_t, ret); 3393 break; 3394 } 3395 break; 3396 case NM_SUBUH_R_QB: 3397 check_dsp_r2(ctx); 3398 switch (extract32(ctx->opcode, 10, 1)) { 3399 case 0: 3400 /* SUBUH_QB */ 3401 gen_helper_subuh_qb(v1_t, v1_t, v2_t); 3402 gen_store_gpr(v1_t, ret); 3403 break; 3404 case 1: 3405 /* SUBUH_R_QB */ 3406 gen_helper_subuh_r_qb(v1_t, v1_t, v2_t); 3407 gen_store_gpr(v1_t, ret); 3408 break; 3409 } 3410 break; 3411 case NM_SHLLV_S_PH: 3412 check_dsp(ctx); 3413 switch (extract32(ctx->opcode, 10, 1)) { 3414 case 0: 3415 /* SHLLV_PH */ 3416 gen_helper_shll_ph(v1_t, v1_t, v2_t, cpu_env); 3417 gen_store_gpr(v1_t, ret); 3418 break; 3419 case 1: 3420 /* SHLLV_S_PH */ 3421 gen_helper_shll_s_ph(v1_t, v1_t, v2_t, cpu_env); 3422 gen_store_gpr(v1_t, ret); 3423 break; 3424 } 3425 break; 3426 case NM_PRECR_SRA_R_PH_W: 3427 check_dsp_r2(ctx); 3428 switch (extract32(ctx->opcode, 10, 1)) { 3429 case 0: 3430 /* PRECR_SRA_PH_W */ 3431 { 3432 TCGv_i32 sa_t = tcg_const_i32(rd); 3433 gen_helper_precr_sra_ph_w(v1_t, sa_t, v1_t, 3434 cpu_gpr[rt]); 3435 gen_store_gpr(v1_t, rt); 3436 tcg_temp_free_i32(sa_t); 3437 } 3438 break; 3439 case 1: 3440 /* PRECR_SRA_R_PH_W */ 3441 { 3442 TCGv_i32 sa_t = tcg_const_i32(rd); 3443 gen_helper_precr_sra_r_ph_w(v1_t, sa_t, v1_t, 3444 cpu_gpr[rt]); 3445 gen_store_gpr(v1_t, rt); 3446 tcg_temp_free_i32(sa_t); 3447 } 3448 break; 3449 } 3450 break; 3451 case NM_MULEU_S_PH_QBL: 3452 check_dsp(ctx); 3453 gen_helper_muleu_s_ph_qbl(v1_t, v1_t, v2_t, cpu_env); 3454 gen_store_gpr(v1_t, ret); 3455 break; 3456 case NM_MULEU_S_PH_QBR: 3457 check_dsp(ctx); 3458 gen_helper_muleu_s_ph_qbr(v1_t, v1_t, v2_t, cpu_env); 3459 gen_store_gpr(v1_t, ret); 3460 break; 3461 case NM_MULQ_RS_PH: 3462 check_dsp(ctx); 3463 gen_helper_mulq_rs_ph(v1_t, v1_t, v2_t, cpu_env); 3464 gen_store_gpr(v1_t, ret); 3465 break; 3466 case NM_MULQ_S_PH: 3467 check_dsp_r2(ctx); 3468 gen_helper_mulq_s_ph(v1_t, v1_t, v2_t, cpu_env); 3469 gen_store_gpr(v1_t, ret); 3470 break; 3471 case NM_MULQ_RS_W: 3472 check_dsp_r2(ctx); 3473 gen_helper_mulq_rs_w(v1_t, v1_t, v2_t, cpu_env); 3474 gen_store_gpr(v1_t, ret); 3475 break; 3476 case NM_MULQ_S_W: 3477 check_dsp_r2(ctx); 3478 gen_helper_mulq_s_w(v1_t, v1_t, v2_t, cpu_env); 3479 gen_store_gpr(v1_t, ret); 3480 break; 3481 case NM_APPEND: 3482 check_dsp_r2(ctx); 3483 gen_load_gpr(t0, rs); 3484 if (rd != 0) { 3485 tcg_gen_deposit_tl(cpu_gpr[rt], t0, cpu_gpr[rt], rd, 32 - rd); 3486 } 3487 tcg_gen_ext32s_tl(cpu_gpr[rt], cpu_gpr[rt]); 3488 break; 3489 case NM_MODSUB: 3490 check_dsp(ctx); 3491 gen_helper_modsub(v1_t, v1_t, v2_t); 3492 gen_store_gpr(v1_t, ret); 3493 break; 3494 case NM_SHRAV_R_W: 3495 check_dsp(ctx); 3496 gen_helper_shra_r_w(v1_t, v1_t, v2_t); 3497 gen_store_gpr(v1_t, ret); 3498 break; 3499 case NM_SHRLV_PH: 3500 check_dsp_r2(ctx); 3501 gen_helper_shrl_ph(v1_t, v1_t, v2_t); 3502 gen_store_gpr(v1_t, ret); 3503 break; 3504 case NM_SHRLV_QB: 3505 check_dsp(ctx); 3506 gen_helper_shrl_qb(v1_t, v1_t, v2_t); 3507 gen_store_gpr(v1_t, ret); 3508 break; 3509 case NM_SHLLV_QB: 3510 check_dsp(ctx); 3511 gen_helper_shll_qb(v1_t, v1_t, v2_t, cpu_env); 3512 gen_store_gpr(v1_t, ret); 3513 break; 3514 case NM_SHLLV_S_W: 3515 check_dsp(ctx); 3516 gen_helper_shll_s_w(v1_t, v1_t, v2_t, cpu_env); 3517 gen_store_gpr(v1_t, ret); 3518 break; 3519 case NM_SHILO: 3520 check_dsp(ctx); 3521 { 3522 TCGv tv0 = tcg_temp_new(); 3523 TCGv tv1 = tcg_temp_new(); 3524 int16_t imm = extract32(ctx->opcode, 16, 7); 3525 3526 tcg_gen_movi_tl(tv0, rd >> 3); 3527 tcg_gen_movi_tl(tv1, imm); 3528 gen_helper_shilo(tv0, tv1, cpu_env); 3529 tcg_temp_free(tv1); 3530 tcg_temp_free(tv0); 3531 } 3532 break; 3533 case NM_MULEQ_S_W_PHL: 3534 check_dsp(ctx); 3535 gen_helper_muleq_s_w_phl(v1_t, v1_t, v2_t, cpu_env); 3536 gen_store_gpr(v1_t, ret); 3537 break; 3538 case NM_MULEQ_S_W_PHR: 3539 check_dsp(ctx); 3540 gen_helper_muleq_s_w_phr(v1_t, v1_t, v2_t, cpu_env); 3541 gen_store_gpr(v1_t, ret); 3542 break; 3543 case NM_MUL_S_PH: 3544 check_dsp_r2(ctx); 3545 switch (extract32(ctx->opcode, 10, 1)) { 3546 case 0: 3547 /* MUL_PH */ 3548 gen_helper_mul_ph(v1_t, v1_t, v2_t, cpu_env); 3549 gen_store_gpr(v1_t, ret); 3550 break; 3551 case 1: 3552 /* MUL_S_PH */ 3553 gen_helper_mul_s_ph(v1_t, v1_t, v2_t, cpu_env); 3554 gen_store_gpr(v1_t, ret); 3555 break; 3556 } 3557 break; 3558 case NM_PRECR_QB_PH: 3559 check_dsp_r2(ctx); 3560 gen_helper_precr_qb_ph(v1_t, v1_t, v2_t); 3561 gen_store_gpr(v1_t, ret); 3562 break; 3563 case NM_PRECRQ_QB_PH: 3564 check_dsp(ctx); 3565 gen_helper_precrq_qb_ph(v1_t, v1_t, v2_t); 3566 gen_store_gpr(v1_t, ret); 3567 break; 3568 case NM_PRECRQ_PH_W: 3569 check_dsp(ctx); 3570 gen_helper_precrq_ph_w(v1_t, v1_t, v2_t); 3571 gen_store_gpr(v1_t, ret); 3572 break; 3573 case NM_PRECRQ_RS_PH_W: 3574 check_dsp(ctx); 3575 gen_helper_precrq_rs_ph_w(v1_t, v1_t, v2_t, cpu_env); 3576 gen_store_gpr(v1_t, ret); 3577 break; 3578 case NM_PRECRQU_S_QB_PH: 3579 check_dsp(ctx); 3580 gen_helper_precrqu_s_qb_ph(v1_t, v1_t, v2_t, cpu_env); 3581 gen_store_gpr(v1_t, ret); 3582 break; 3583 case NM_SHRA_R_W: 3584 check_dsp(ctx); 3585 tcg_gen_movi_tl(t0, rd); 3586 gen_helper_shra_r_w(v1_t, t0, v1_t); 3587 gen_store_gpr(v1_t, rt); 3588 break; 3589 case NM_SHRA_R_PH: 3590 check_dsp(ctx); 3591 tcg_gen_movi_tl(t0, rd >> 1); 3592 switch (extract32(ctx->opcode, 10, 1)) { 3593 case 0: 3594 /* SHRA_PH */ 3595 gen_helper_shra_ph(v1_t, t0, v1_t); 3596 gen_store_gpr(v1_t, rt); 3597 break; 3598 case 1: 3599 /* SHRA_R_PH */ 3600 gen_helper_shra_r_ph(v1_t, t0, v1_t); 3601 gen_store_gpr(v1_t, rt); 3602 break; 3603 } 3604 break; 3605 case NM_SHLL_S_PH: 3606 check_dsp(ctx); 3607 tcg_gen_movi_tl(t0, rd >> 1); 3608 switch (extract32(ctx->opcode, 10, 2)) { 3609 case 0: 3610 /* SHLL_PH */ 3611 gen_helper_shll_ph(v1_t, t0, v1_t, cpu_env); 3612 gen_store_gpr(v1_t, rt); 3613 break; 3614 case 2: 3615 /* SHLL_S_PH */ 3616 gen_helper_shll_s_ph(v1_t, t0, v1_t, cpu_env); 3617 gen_store_gpr(v1_t, rt); 3618 break; 3619 default: 3620 gen_reserved_instruction(ctx); 3621 break; 3622 } 3623 break; 3624 case NM_SHLL_S_W: 3625 check_dsp(ctx); 3626 tcg_gen_movi_tl(t0, rd); 3627 gen_helper_shll_s_w(v1_t, t0, v1_t, cpu_env); 3628 gen_store_gpr(v1_t, rt); 3629 break; 3630 case NM_REPL_PH: 3631 check_dsp(ctx); 3632 { 3633 int16_t imm; 3634 imm = sextract32(ctx->opcode, 11, 11); 3635 imm = (int16_t)(imm << 6) >> 6; 3636 if (rt != 0) { 3637 tcg_gen_movi_tl(cpu_gpr[rt], dup_const(MO_16, imm)); 3638 } 3639 } 3640 break; 3641 default: 3642 gen_reserved_instruction(ctx); 3643 break; 3644 } 3645 3646 tcg_temp_free(v2_t); 3647 tcg_temp_free(v1_t); 3648 tcg_temp_free(t0); 3649} 3650 3651static int decode_nanomips_32_48_opc(CPUMIPSState *env, DisasContext *ctx) 3652{ 3653 uint16_t insn; 3654 uint32_t op; 3655 int rt, rs, rd; 3656 int offset; 3657 int imm; 3658 3659 insn = translator_lduw(env, ctx->base.pc_next + 2); 3660 ctx->opcode = (ctx->opcode << 16) | insn; 3661 3662 rt = extract32(ctx->opcode, 21, 5); 3663 rs = extract32(ctx->opcode, 16, 5); 3664 rd = extract32(ctx->opcode, 11, 5); 3665 3666 op = extract32(ctx->opcode, 26, 6); 3667 switch (op) { 3668 case NM_P_ADDIU: 3669 if (rt == 0) { 3670 /* P.RI */ 3671 switch (extract32(ctx->opcode, 19, 2)) { 3672 case NM_SIGRIE: 3673 default: 3674 gen_reserved_instruction(ctx); 3675 break; 3676 case NM_P_SYSCALL: 3677 if ((extract32(ctx->opcode, 18, 1)) == NM_SYSCALL) { 3678 generate_exception_end(ctx, EXCP_SYSCALL); 3679 } else { 3680 gen_reserved_instruction(ctx); 3681 } 3682 break; 3683 case NM_BREAK: 3684 generate_exception_end(ctx, EXCP_BREAK); 3685 break; 3686 case NM_SDBBP: 3687 if (is_uhi(extract32(ctx->opcode, 0, 19))) { 3688 gen_helper_do_semihosting(cpu_env); 3689 } else { 3690 if (ctx->hflags & MIPS_HFLAG_SBRI) { 3691 gen_reserved_instruction(ctx); 3692 } else { 3693 generate_exception_end(ctx, EXCP_DBp); 3694 } 3695 } 3696 break; 3697 } 3698 } else { 3699 /* NM_ADDIU */ 3700 imm = extract32(ctx->opcode, 0, 16); 3701 if (rs != 0) { 3702 tcg_gen_addi_tl(cpu_gpr[rt], cpu_gpr[rs], imm); 3703 } else { 3704 tcg_gen_movi_tl(cpu_gpr[rt], imm); 3705 } 3706 tcg_gen_ext32s_tl(cpu_gpr[rt], cpu_gpr[rt]); 3707 } 3708 break; 3709 case NM_ADDIUPC: 3710 if (rt != 0) { 3711 offset = sextract32(ctx->opcode, 0, 1) << 21 | 3712 extract32(ctx->opcode, 1, 20) << 1; 3713 target_long addr = addr_add(ctx, ctx->base.pc_next + 4, offset); 3714 tcg_gen_movi_tl(cpu_gpr[rt], addr); 3715 } 3716 break; 3717 case NM_POOL32A: 3718 switch (ctx->opcode & 0x07) { 3719 case NM_POOL32A0: 3720 gen_pool32a0_nanomips_insn(env, ctx); 3721 break; 3722 case NM_POOL32A5: 3723 { 3724 int32_t op1 = extract32(ctx->opcode, 3, 7); 3725 gen_pool32a5_nanomips_insn(ctx, op1, rd, rs, rt); 3726 } 3727 break; 3728 case NM_POOL32A7: 3729 switch (extract32(ctx->opcode, 3, 3)) { 3730 case NM_P_LSX: 3731 gen_p_lsx(ctx, rd, rs, rt); 3732 break; 3733 case NM_LSA: 3734 /* 3735 * In nanoMIPS, the shift field directly encodes the shift 3736 * amount, meaning that the supported shift values are in 3737 * the range 0 to 3 (instead of 1 to 4 in MIPSR6). 3738 */ 3739 gen_lsa(ctx, rd, rt, rs, extract32(ctx->opcode, 9, 2) - 1); 3740 break; 3741 case NM_EXTW: 3742 gen_ext(ctx, 32, rd, rs, rt, extract32(ctx->opcode, 6, 5)); 3743 break; 3744 case NM_POOL32AXF: 3745 gen_pool32axf_nanomips_insn(env, ctx); 3746 break; 3747 default: 3748 gen_reserved_instruction(ctx); 3749 break; 3750 } 3751 break; 3752 default: 3753 gen_reserved_instruction(ctx); 3754 break; 3755 } 3756 break; 3757 case NM_P_GP_W: 3758 switch (ctx->opcode & 0x03) { 3759 case NM_ADDIUGP_W: 3760 if (rt != 0) { 3761 offset = extract32(ctx->opcode, 0, 21); 3762 gen_op_addr_addi(ctx, cpu_gpr[rt], cpu_gpr[28], offset); 3763 } 3764 break; 3765 case NM_LWGP: 3766 gen_ld(ctx, OPC_LW, rt, 28, extract32(ctx->opcode, 2, 19) << 2); 3767 break; 3768 case NM_SWGP: 3769 gen_st(ctx, OPC_SW, rt, 28, extract32(ctx->opcode, 2, 19) << 2); 3770 break; 3771 default: 3772 gen_reserved_instruction(ctx); 3773 break; 3774 } 3775 break; 3776 case NM_P48I: 3777 { 3778 insn = translator_lduw(env, ctx->base.pc_next + 4); 3779 target_long addr_off = extract32(ctx->opcode, 0, 16) | insn << 16; 3780 switch (extract32(ctx->opcode, 16, 5)) { 3781 case NM_LI48: 3782 check_nms(ctx); 3783 if (rt != 0) { 3784 tcg_gen_movi_tl(cpu_gpr[rt], addr_off); 3785 } 3786 break; 3787 case NM_ADDIU48: 3788 check_nms(ctx); 3789 if (rt != 0) { 3790 tcg_gen_addi_tl(cpu_gpr[rt], cpu_gpr[rt], addr_off); 3791 tcg_gen_ext32s_tl(cpu_gpr[rt], cpu_gpr[rt]); 3792 } 3793 break; 3794 case NM_ADDIUGP48: 3795 check_nms(ctx); 3796 if (rt != 0) { 3797 gen_op_addr_addi(ctx, cpu_gpr[rt], cpu_gpr[28], addr_off); 3798 } 3799 break; 3800 case NM_ADDIUPC48: 3801 check_nms(ctx); 3802 if (rt != 0) { 3803 target_long addr = addr_add(ctx, ctx->base.pc_next + 6, 3804 addr_off); 3805 3806 tcg_gen_movi_tl(cpu_gpr[rt], addr); 3807 } 3808 break; 3809 case NM_LWPC48: 3810 check_nms(ctx); 3811 if (rt != 0) { 3812 TCGv t0; 3813 t0 = tcg_temp_new(); 3814 3815 target_long addr = addr_add(ctx, ctx->base.pc_next + 6, 3816 addr_off); 3817 3818 tcg_gen_movi_tl(t0, addr); 3819 tcg_gen_qemu_ld_tl(cpu_gpr[rt], t0, ctx->mem_idx, MO_TESL); 3820 tcg_temp_free(t0); 3821 } 3822 break; 3823 case NM_SWPC48: 3824 check_nms(ctx); 3825 { 3826 TCGv t0, t1; 3827 t0 = tcg_temp_new(); 3828 t1 = tcg_temp_new(); 3829 3830 target_long addr = addr_add(ctx, ctx->base.pc_next + 6, 3831 addr_off); 3832 3833 tcg_gen_movi_tl(t0, addr); 3834 gen_load_gpr(t1, rt); 3835 3836 tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUL); 3837 3838 tcg_temp_free(t0); 3839 tcg_temp_free(t1); 3840 } 3841 break; 3842 default: 3843 gen_reserved_instruction(ctx); 3844 break; 3845 } 3846 return 6; 3847 } 3848 case NM_P_U12: 3849 switch (extract32(ctx->opcode, 12, 4)) { 3850 case NM_ORI: 3851 gen_logic_imm(ctx, OPC_ORI, rt, rs, extract32(ctx->opcode, 0, 12)); 3852 break; 3853 case NM_XORI: 3854 gen_logic_imm(ctx, OPC_XORI, rt, rs, extract32(ctx->opcode, 0, 12)); 3855 break; 3856 case NM_ANDI: 3857 gen_logic_imm(ctx, OPC_ANDI, rt, rs, extract32(ctx->opcode, 0, 12)); 3858 break; 3859 case NM_P_SR: 3860 switch (extract32(ctx->opcode, 20, 1)) { 3861 case NM_PP_SR: 3862 switch (ctx->opcode & 3) { 3863 case NM_SAVE: 3864 gen_save(ctx, rt, extract32(ctx->opcode, 16, 4), 3865 extract32(ctx->opcode, 2, 1), 3866 extract32(ctx->opcode, 3, 9) << 3); 3867 break; 3868 case NM_RESTORE: 3869 case NM_RESTORE_JRC: 3870 gen_restore(ctx, rt, extract32(ctx->opcode, 16, 4), 3871 extract32(ctx->opcode, 2, 1), 3872 extract32(ctx->opcode, 3, 9) << 3); 3873 if ((ctx->opcode & 3) == NM_RESTORE_JRC) { 3874 gen_compute_branch_nm(ctx, OPC_JR, 2, 31, 0, 0); 3875 } 3876 break; 3877 default: 3878 gen_reserved_instruction(ctx); 3879 break; 3880 } 3881 break; 3882 case NM_P_SR_F: 3883 gen_reserved_instruction(ctx); 3884 break; 3885 } 3886 break; 3887 case NM_SLTI: 3888 gen_slt_imm(ctx, OPC_SLTI, rt, rs, extract32(ctx->opcode, 0, 12)); 3889 break; 3890 case NM_SLTIU: 3891 gen_slt_imm(ctx, OPC_SLTIU, rt, rs, extract32(ctx->opcode, 0, 12)); 3892 break; 3893 case NM_SEQI: 3894 { 3895 TCGv t0 = tcg_temp_new(); 3896 3897 imm = extract32(ctx->opcode, 0, 12); 3898 gen_load_gpr(t0, rs); 3899 tcg_gen_setcondi_tl(TCG_COND_EQ, t0, t0, imm); 3900 gen_store_gpr(t0, rt); 3901 3902 tcg_temp_free(t0); 3903 } 3904 break; 3905 case NM_ADDIUNEG: 3906 imm = (int16_t) extract32(ctx->opcode, 0, 12); 3907 gen_arith_imm(ctx, OPC_ADDIU, rt, rs, -imm); 3908 break; 3909 case NM_P_SHIFT: 3910 { 3911 int shift = extract32(ctx->opcode, 0, 5); 3912 switch (extract32(ctx->opcode, 5, 4)) { 3913 case NM_P_SLL: 3914 if (rt == 0 && shift == 0) { 3915 /* NOP */ 3916 } else if (rt == 0 && shift == 3) { 3917 /* EHB - treat as NOP */ 3918 } else if (rt == 0 && shift == 5) { 3919 /* PAUSE - treat as NOP */ 3920 } else if (rt == 0 && shift == 6) { 3921 /* SYNC */ 3922 gen_sync(extract32(ctx->opcode, 16, 5)); 3923 } else { 3924 /* SLL */ 3925 gen_shift_imm(ctx, OPC_SLL, rt, rs, 3926 extract32(ctx->opcode, 0, 5)); 3927 } 3928 break; 3929 case NM_SRL: 3930 gen_shift_imm(ctx, OPC_SRL, rt, rs, 3931 extract32(ctx->opcode, 0, 5)); 3932 break; 3933 case NM_SRA: 3934 gen_shift_imm(ctx, OPC_SRA, rt, rs, 3935 extract32(ctx->opcode, 0, 5)); 3936 break; 3937 case NM_ROTR: 3938 gen_shift_imm(ctx, OPC_ROTR, rt, rs, 3939 extract32(ctx->opcode, 0, 5)); 3940 break; 3941 } 3942 } 3943 break; 3944 case NM_P_ROTX: 3945 check_nms(ctx); 3946 if (rt != 0) { 3947 TCGv t0 = tcg_temp_new(); 3948 TCGv_i32 shift = tcg_const_i32(extract32(ctx->opcode, 0, 5)); 3949 TCGv_i32 shiftx = tcg_const_i32(extract32(ctx->opcode, 7, 4) 3950 << 1); 3951 TCGv_i32 stripe = tcg_const_i32(extract32(ctx->opcode, 6, 1)); 3952 3953 gen_load_gpr(t0, rs); 3954 gen_helper_rotx(cpu_gpr[rt], t0, shift, shiftx, stripe); 3955 tcg_temp_free(t0); 3956 3957 tcg_temp_free_i32(shift); 3958 tcg_temp_free_i32(shiftx); 3959 tcg_temp_free_i32(stripe); 3960 } 3961 break; 3962 case NM_P_INS: 3963 switch (((ctx->opcode >> 10) & 2) | 3964 (extract32(ctx->opcode, 5, 1))) { 3965 case NM_INS: 3966 check_nms(ctx); 3967 gen_bitops(ctx, OPC_INS, rt, rs, extract32(ctx->opcode, 0, 5), 3968 extract32(ctx->opcode, 6, 5)); 3969 break; 3970 default: 3971 gen_reserved_instruction(ctx); 3972 break; 3973 } 3974 break; 3975 case NM_P_EXT: 3976 switch (((ctx->opcode >> 10) & 2) | 3977 (extract32(ctx->opcode, 5, 1))) { 3978 case NM_EXT: 3979 check_nms(ctx); 3980 gen_bitops(ctx, OPC_EXT, rt, rs, extract32(ctx->opcode, 0, 5), 3981 extract32(ctx->opcode, 6, 5)); 3982 break; 3983 default: 3984 gen_reserved_instruction(ctx); 3985 break; 3986 } 3987 break; 3988 default: 3989 gen_reserved_instruction(ctx); 3990 break; 3991 } 3992 break; 3993 case NM_POOL32F: 3994 gen_pool32f_nanomips_insn(ctx); 3995 break; 3996 case NM_POOL32S: 3997 break; 3998 case NM_P_LUI: 3999 switch (extract32(ctx->opcode, 1, 1)) { 4000 case NM_LUI: 4001 if (rt != 0) { 4002 tcg_gen_movi_tl(cpu_gpr[rt], 4003 sextract32(ctx->opcode, 0, 1) << 31 | 4004 extract32(ctx->opcode, 2, 10) << 21 | 4005 extract32(ctx->opcode, 12, 9) << 12); 4006 } 4007 break; 4008 case NM_ALUIPC: 4009 if (rt != 0) { 4010 offset = sextract32(ctx->opcode, 0, 1) << 31 | 4011 extract32(ctx->opcode, 2, 10) << 21 | 4012 extract32(ctx->opcode, 12, 9) << 12; 4013 target_long addr; 4014 addr = ~0xFFF & addr_add(ctx, ctx->base.pc_next + 4, offset); 4015 tcg_gen_movi_tl(cpu_gpr[rt], addr); 4016 } 4017 break; 4018 } 4019 break; 4020 case NM_P_GP_BH: 4021 { 4022 uint32_t u = extract32(ctx->opcode, 0, 18); 4023 4024 switch (extract32(ctx->opcode, 18, 3)) { 4025 case NM_LBGP: 4026 gen_ld(ctx, OPC_LB, rt, 28, u); 4027 break; 4028 case NM_SBGP: 4029 gen_st(ctx, OPC_SB, rt, 28, u); 4030 break; 4031 case NM_LBUGP: 4032 gen_ld(ctx, OPC_LBU, rt, 28, u); 4033 break; 4034 case NM_ADDIUGP_B: 4035 if (rt != 0) { 4036 gen_op_addr_addi(ctx, cpu_gpr[rt], cpu_gpr[28], u); 4037 } 4038 break; 4039 case NM_P_GP_LH: 4040 u &= ~1; 4041 switch (ctx->opcode & 1) { 4042 case NM_LHGP: 4043 gen_ld(ctx, OPC_LH, rt, 28, u); 4044 break; 4045 case NM_LHUGP: 4046 gen_ld(ctx, OPC_LHU, rt, 28, u); 4047 break; 4048 } 4049 break; 4050 case NM_P_GP_SH: 4051 u &= ~1; 4052 switch (ctx->opcode & 1) { 4053 case NM_SHGP: 4054 gen_st(ctx, OPC_SH, rt, 28, u); 4055 break; 4056 default: 4057 gen_reserved_instruction(ctx); 4058 break; 4059 } 4060 break; 4061 case NM_P_GP_CP1: 4062 u &= ~0x3; 4063 switch (ctx->opcode & 0x3) { 4064 case NM_LWC1GP: 4065 gen_cop1_ldst(ctx, OPC_LWC1, rt, 28, u); 4066 break; 4067 case NM_LDC1GP: 4068 gen_cop1_ldst(ctx, OPC_LDC1, rt, 28, u); 4069 break; 4070 case NM_SWC1GP: 4071 gen_cop1_ldst(ctx, OPC_SWC1, rt, 28, u); 4072 break; 4073 case NM_SDC1GP: 4074 gen_cop1_ldst(ctx, OPC_SDC1, rt, 28, u); 4075 break; 4076 } 4077 break; 4078 default: 4079 gen_reserved_instruction(ctx); 4080 break; 4081 } 4082 } 4083 break; 4084 case NM_P_LS_U12: 4085 { 4086 uint32_t u = extract32(ctx->opcode, 0, 12); 4087 4088 switch (extract32(ctx->opcode, 12, 4)) { 4089 case NM_P_PREFU12: 4090 if (rt == 31) { 4091 /* SYNCI */ 4092 /* 4093 * Break the TB to be able to sync copied instructions 4094 * immediately. 4095 */ 4096 ctx->base.is_jmp = DISAS_STOP; 4097 } else { 4098 /* PREF */ 4099 /* Treat as NOP. */ 4100 } 4101 break; 4102 case NM_LB: 4103 gen_ld(ctx, OPC_LB, rt, rs, u); 4104 break; 4105 case NM_LH: 4106 gen_ld(ctx, OPC_LH, rt, rs, u); 4107 break; 4108 case NM_LW: 4109 gen_ld(ctx, OPC_LW, rt, rs, u); 4110 break; 4111 case NM_LBU: 4112 gen_ld(ctx, OPC_LBU, rt, rs, u); 4113 break; 4114 case NM_LHU: 4115 gen_ld(ctx, OPC_LHU, rt, rs, u); 4116 break; 4117 case NM_SB: 4118 gen_st(ctx, OPC_SB, rt, rs, u); 4119 break; 4120 case NM_SH: 4121 gen_st(ctx, OPC_SH, rt, rs, u); 4122 break; 4123 case NM_SW: 4124 gen_st(ctx, OPC_SW, rt, rs, u); 4125 break; 4126 case NM_LWC1: 4127 gen_cop1_ldst(ctx, OPC_LWC1, rt, rs, u); 4128 break; 4129 case NM_LDC1: 4130 gen_cop1_ldst(ctx, OPC_LDC1, rt, rs, u); 4131 break; 4132 case NM_SWC1: 4133 gen_cop1_ldst(ctx, OPC_SWC1, rt, rs, u); 4134 break; 4135 case NM_SDC1: 4136 gen_cop1_ldst(ctx, OPC_SDC1, rt, rs, u); 4137 break; 4138 default: 4139 gen_reserved_instruction(ctx); 4140 break; 4141 } 4142 } 4143 break; 4144 case NM_P_LS_S9: 4145 { 4146 int32_t s = (sextract32(ctx->opcode, 15, 1) << 8) | 4147 extract32(ctx->opcode, 0, 8); 4148 4149 switch (extract32(ctx->opcode, 8, 3)) { 4150 case NM_P_LS_S0: 4151 switch (extract32(ctx->opcode, 11, 4)) { 4152 case NM_LBS9: 4153 gen_ld(ctx, OPC_LB, rt, rs, s); 4154 break; 4155 case NM_LHS9: 4156 gen_ld(ctx, OPC_LH, rt, rs, s); 4157 break; 4158 case NM_LWS9: 4159 gen_ld(ctx, OPC_LW, rt, rs, s); 4160 break; 4161 case NM_LBUS9: 4162 gen_ld(ctx, OPC_LBU, rt, rs, s); 4163 break; 4164 case NM_LHUS9: 4165 gen_ld(ctx, OPC_LHU, rt, rs, s); 4166 break; 4167 case NM_SBS9: 4168 gen_st(ctx, OPC_SB, rt, rs, s); 4169 break; 4170 case NM_SHS9: 4171 gen_st(ctx, OPC_SH, rt, rs, s); 4172 break; 4173 case NM_SWS9: 4174 gen_st(ctx, OPC_SW, rt, rs, s); 4175 break; 4176 case NM_LWC1S9: 4177 gen_cop1_ldst(ctx, OPC_LWC1, rt, rs, s); 4178 break; 4179 case NM_LDC1S9: 4180 gen_cop1_ldst(ctx, OPC_LDC1, rt, rs, s); 4181 break; 4182 case NM_SWC1S9: 4183 gen_cop1_ldst(ctx, OPC_SWC1, rt, rs, s); 4184 break; 4185 case NM_SDC1S9: 4186 gen_cop1_ldst(ctx, OPC_SDC1, rt, rs, s); 4187 break; 4188 case NM_P_PREFS9: 4189 if (rt == 31) { 4190 /* SYNCI */ 4191 /* 4192 * Break the TB to be able to sync copied instructions 4193 * immediately. 4194 */ 4195 ctx->base.is_jmp = DISAS_STOP; 4196 } else { 4197 /* PREF */ 4198 /* Treat as NOP. */ 4199 } 4200 break; 4201 default: 4202 gen_reserved_instruction(ctx); 4203 break; 4204 } 4205 break; 4206 case NM_P_LS_S1: 4207 switch (extract32(ctx->opcode, 11, 4)) { 4208 case NM_UALH: 4209 case NM_UASH: 4210 check_nms(ctx); 4211 { 4212 TCGv t0 = tcg_temp_new(); 4213 TCGv t1 = tcg_temp_new(); 4214 4215 gen_base_offset_addr(ctx, t0, rs, s); 4216 4217 switch (extract32(ctx->opcode, 11, 4)) { 4218 case NM_UALH: 4219 tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TESW | 4220 MO_UNALN); 4221 gen_store_gpr(t0, rt); 4222 break; 4223 case NM_UASH: 4224 gen_load_gpr(t1, rt); 4225 tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUW | 4226 MO_UNALN); 4227 break; 4228 } 4229 tcg_temp_free(t0); 4230 tcg_temp_free(t1); 4231 } 4232 break; 4233 case NM_P_LL: 4234 switch (ctx->opcode & 0x03) { 4235 case NM_LL: 4236 gen_ld(ctx, OPC_LL, rt, rs, s); 4237 break; 4238 case NM_LLWP: 4239 check_xnp(ctx); 4240 gen_llwp(ctx, rs, 0, rt, extract32(ctx->opcode, 3, 5)); 4241 break; 4242 } 4243 break; 4244 case NM_P_SC: 4245 switch (ctx->opcode & 0x03) { 4246 case NM_SC: 4247 gen_st_cond(ctx, rt, rs, s, MO_TESL, false); 4248 break; 4249 case NM_SCWP: 4250 check_xnp(ctx); 4251 gen_scwp(ctx, rs, 0, rt, extract32(ctx->opcode, 3, 5), 4252 false); 4253 break; 4254 } 4255 break; 4256 case NM_CACHE: 4257 check_cp0_enabled(ctx); 4258 if (ctx->hflags & MIPS_HFLAG_ITC_CACHE) { 4259 gen_cache_operation(ctx, rt, rs, s); 4260 } 4261 break; 4262 } 4263 break; 4264 case NM_P_LS_E0: 4265 switch (extract32(ctx->opcode, 11, 4)) { 4266 case NM_LBE: 4267 check_eva(ctx); 4268 check_cp0_enabled(ctx); 4269 gen_ld(ctx, OPC_LBE, rt, rs, s); 4270 break; 4271 case NM_SBE: 4272 check_eva(ctx); 4273 check_cp0_enabled(ctx); 4274 gen_st(ctx, OPC_SBE, rt, rs, s); 4275 break; 4276 case NM_LBUE: 4277 check_eva(ctx); 4278 check_cp0_enabled(ctx); 4279 gen_ld(ctx, OPC_LBUE, rt, rs, s); 4280 break; 4281 case NM_P_PREFE: 4282 if (rt == 31) { 4283 /* case NM_SYNCIE */ 4284 check_eva(ctx); 4285 check_cp0_enabled(ctx); 4286 /* 4287 * Break the TB to be able to sync copied instructions 4288 * immediately. 4289 */ 4290 ctx->base.is_jmp = DISAS_STOP; 4291 } else { 4292 /* case NM_PREFE */ 4293 check_eva(ctx); 4294 check_cp0_enabled(ctx); 4295 /* Treat as NOP. */ 4296 } 4297 break; 4298 case NM_LHE: 4299 check_eva(ctx); 4300 check_cp0_enabled(ctx); 4301 gen_ld(ctx, OPC_LHE, rt, rs, s); 4302 break; 4303 case NM_SHE: 4304 check_eva(ctx); 4305 check_cp0_enabled(ctx); 4306 gen_st(ctx, OPC_SHE, rt, rs, s); 4307 break; 4308 case NM_LHUE: 4309 check_eva(ctx); 4310 check_cp0_enabled(ctx); 4311 gen_ld(ctx, OPC_LHUE, rt, rs, s); 4312 break; 4313 case NM_CACHEE: 4314 check_eva(ctx); 4315 check_cp0_enabled(ctx); 4316 check_nms_dl_il_sl_tl_l2c(ctx); 4317 gen_cache_operation(ctx, rt, rs, s); 4318 break; 4319 case NM_LWE: 4320 check_eva(ctx); 4321 check_cp0_enabled(ctx); 4322 gen_ld(ctx, OPC_LWE, rt, rs, s); 4323 break; 4324 case NM_SWE: 4325 check_eva(ctx); 4326 check_cp0_enabled(ctx); 4327 gen_st(ctx, OPC_SWE, rt, rs, s); 4328 break; 4329 case NM_P_LLE: 4330 switch (extract32(ctx->opcode, 2, 2)) { 4331 case NM_LLE: 4332 check_xnp(ctx); 4333 check_eva(ctx); 4334 check_cp0_enabled(ctx); 4335 gen_ld(ctx, OPC_LLE, rt, rs, s); 4336 break; 4337 case NM_LLWPE: 4338 check_xnp(ctx); 4339 check_eva(ctx); 4340 check_cp0_enabled(ctx); 4341 gen_llwp(ctx, rs, 0, rt, extract32(ctx->opcode, 3, 5)); 4342 break; 4343 default: 4344 gen_reserved_instruction(ctx); 4345 break; 4346 } 4347 break; 4348 case NM_P_SCE: 4349 switch (extract32(ctx->opcode, 2, 2)) { 4350 case NM_SCE: 4351 check_xnp(ctx); 4352 check_eva(ctx); 4353 check_cp0_enabled(ctx); 4354 gen_st_cond(ctx, rt, rs, s, MO_TESL, true); 4355 break; 4356 case NM_SCWPE: 4357 check_xnp(ctx); 4358 check_eva(ctx); 4359 check_cp0_enabled(ctx); 4360 gen_scwp(ctx, rs, 0, rt, extract32(ctx->opcode, 3, 5), 4361 true); 4362 break; 4363 default: 4364 gen_reserved_instruction(ctx); 4365 break; 4366 } 4367 break; 4368 } 4369 break; 4370 case NM_P_LS_WM: 4371 case NM_P_LS_UAWM: 4372 check_nms(ctx); 4373 { 4374 int count = extract32(ctx->opcode, 12, 3); 4375 int counter = 0; 4376 4377 offset = sextract32(ctx->opcode, 15, 1) << 8 | 4378 extract32(ctx->opcode, 0, 8); 4379 TCGv va = tcg_temp_new(); 4380 TCGv t1 = tcg_temp_new(); 4381 MemOp memop = (extract32(ctx->opcode, 8, 3)) == 4382 NM_P_LS_UAWM ? MO_UNALN : 0; 4383 4384 count = (count == 0) ? 8 : count; 4385 while (counter != count) { 4386 int this_rt = ((rt + counter) & 0x1f) | (rt & 0x10); 4387 int this_offset = offset + (counter << 2); 4388 4389 gen_base_offset_addr(ctx, va, rs, this_offset); 4390 4391 switch (extract32(ctx->opcode, 11, 1)) { 4392 case NM_LWM: 4393 tcg_gen_qemu_ld_tl(t1, va, ctx->mem_idx, 4394 memop | MO_TESL); 4395 gen_store_gpr(t1, this_rt); 4396 if ((this_rt == rs) && 4397 (counter != (count - 1))) { 4398 /* UNPREDICTABLE */ 4399 } 4400 break; 4401 case NM_SWM: 4402 this_rt = (rt == 0) ? 0 : this_rt; 4403 gen_load_gpr(t1, this_rt); 4404 tcg_gen_qemu_st_tl(t1, va, ctx->mem_idx, 4405 memop | MO_TEUL); 4406 break; 4407 } 4408 counter++; 4409 } 4410 tcg_temp_free(va); 4411 tcg_temp_free(t1); 4412 } 4413 break; 4414 default: 4415 gen_reserved_instruction(ctx); 4416 break; 4417 } 4418 } 4419 break; 4420 case NM_MOVE_BALC: 4421 check_nms(ctx); 4422 { 4423 TCGv t0 = tcg_temp_new(); 4424 int32_t s = sextract32(ctx->opcode, 0, 1) << 21 | 4425 extract32(ctx->opcode, 1, 20) << 1; 4426 rd = (extract32(ctx->opcode, 24, 1)) == 0 ? 4 : 5; 4427 rt = decode_gpr_gpr4_zero(extract32(ctx->opcode, 25, 1) << 3 | 4428 extract32(ctx->opcode, 21, 3)); 4429 gen_load_gpr(t0, rt); 4430 tcg_gen_mov_tl(cpu_gpr[rd], t0); 4431 gen_compute_branch_nm(ctx, OPC_BGEZAL, 4, 0, 0, s); 4432 tcg_temp_free(t0); 4433 } 4434 break; 4435 case NM_P_BAL: 4436 { 4437 int32_t s = sextract32(ctx->opcode, 0, 1) << 25 | 4438 extract32(ctx->opcode, 1, 24) << 1; 4439 4440 if ((extract32(ctx->opcode, 25, 1)) == 0) { 4441 /* BC */ 4442 gen_compute_branch_nm(ctx, OPC_BEQ, 4, 0, 0, s); 4443 } else { 4444 /* BALC */ 4445 gen_compute_branch_nm(ctx, OPC_BGEZAL, 4, 0, 0, s); 4446 } 4447 } 4448 break; 4449 case NM_P_J: 4450 switch (extract32(ctx->opcode, 12, 4)) { 4451 case NM_JALRC: 4452 case NM_JALRC_HB: 4453 gen_compute_branch_nm(ctx, OPC_JALR, 4, rs, rt, 0); 4454 break; 4455 case NM_P_BALRSC: 4456 gen_compute_nanomips_pbalrsc_branch(ctx, rs, rt); 4457 break; 4458 default: 4459 gen_reserved_instruction(ctx); 4460 break; 4461 } 4462 break; 4463 case NM_P_BR1: 4464 { 4465 int32_t s = sextract32(ctx->opcode, 0, 1) << 14 | 4466 extract32(ctx->opcode, 1, 13) << 1; 4467 switch (extract32(ctx->opcode, 14, 2)) { 4468 case NM_BEQC: 4469 check_nms(ctx); 4470 gen_compute_branch_nm(ctx, OPC_BEQ, 4, rs, rt, s); 4471 break; 4472 case NM_P_BR3A: 4473 s = sextract32(ctx->opcode, 0, 1) << 14 | 4474 extract32(ctx->opcode, 1, 13) << 1; 4475 check_cp1_enabled(ctx); 4476 switch (extract32(ctx->opcode, 16, 5)) { 4477 case NM_BC1EQZC: 4478 gen_compute_branch_cp1_nm(ctx, OPC_BC1EQZ, rt, s); 4479 break; 4480 case NM_BC1NEZC: 4481 gen_compute_branch_cp1_nm(ctx, OPC_BC1NEZ, rt, s); 4482 break; 4483 case NM_BPOSGE32C: 4484 check_dsp_r3(ctx); 4485 { 4486 int32_t imm = extract32(ctx->opcode, 1, 13) | 4487 extract32(ctx->opcode, 0, 1) << 13; 4488 4489 gen_compute_branch_nm(ctx, OPC_BPOSGE32, 4, -1, -2, 4490 imm << 1); 4491 } 4492 break; 4493 default: 4494 gen_reserved_instruction(ctx); 4495 break; 4496 } 4497 break; 4498 case NM_BGEC: 4499 if (rs == rt) { 4500 gen_compute_compact_branch_nm(ctx, OPC_BC, rs, rt, s); 4501 } else { 4502 gen_compute_compact_branch_nm(ctx, OPC_BGEC, rs, rt, s); 4503 } 4504 break; 4505 case NM_BGEUC: 4506 if (rs == rt || rt == 0) { 4507 gen_compute_compact_branch_nm(ctx, OPC_BC, 0, 0, s); 4508 } else if (rs == 0) { 4509 gen_compute_compact_branch_nm(ctx, OPC_BEQZC, rt, 0, s); 4510 } else { 4511 gen_compute_compact_branch_nm(ctx, OPC_BGEUC, rs, rt, s); 4512 } 4513 break; 4514 } 4515 } 4516 break; 4517 case NM_P_BR2: 4518 { 4519 int32_t s = sextract32(ctx->opcode, 0, 1) << 14 | 4520 extract32(ctx->opcode, 1, 13) << 1; 4521 switch (extract32(ctx->opcode, 14, 2)) { 4522 case NM_BNEC: 4523 check_nms(ctx); 4524 gen_compute_branch_nm(ctx, OPC_BNE, 4, rs, rt, s); 4525 break; 4526 case NM_BLTC: 4527 if (rs != 0 && rt != 0 && rs == rt) { 4528 /* NOP */ 4529 ctx->hflags |= MIPS_HFLAG_FBNSLOT; 4530 } else { 4531 gen_compute_compact_branch_nm(ctx, OPC_BLTC, rs, rt, s); 4532 } 4533 break; 4534 case NM_BLTUC: 4535 if (rs == 0 || rs == rt) { 4536 /* NOP */ 4537 ctx->hflags |= MIPS_HFLAG_FBNSLOT; 4538 } else { 4539 gen_compute_compact_branch_nm(ctx, OPC_BLTUC, rs, rt, s); 4540 } 4541 break; 4542 default: 4543 gen_reserved_instruction(ctx); 4544 break; 4545 } 4546 } 4547 break; 4548 case NM_P_BRI: 4549 { 4550 int32_t s = sextract32(ctx->opcode, 0, 1) << 11 | 4551 extract32(ctx->opcode, 1, 10) << 1; 4552 uint32_t u = extract32(ctx->opcode, 11, 7); 4553 4554 gen_compute_imm_branch(ctx, extract32(ctx->opcode, 18, 3), 4555 rt, u, s); 4556 } 4557 break; 4558 default: 4559 gen_reserved_instruction(ctx); 4560 break; 4561 } 4562 return 4; 4563} 4564 4565static int decode_isa_nanomips(CPUMIPSState *env, DisasContext *ctx) 4566{ 4567 uint32_t op; 4568 int rt = decode_gpr_gpr3(NANOMIPS_EXTRACT_RT3(ctx->opcode)); 4569 int rs = decode_gpr_gpr3(NANOMIPS_EXTRACT_RS3(ctx->opcode)); 4570 int rd = decode_gpr_gpr3(NANOMIPS_EXTRACT_RD3(ctx->opcode)); 4571 int offset; 4572 int imm; 4573 4574 /* make sure instructions are on a halfword boundary */ 4575 if (ctx->base.pc_next & 0x1) { 4576 TCGv tmp = tcg_const_tl(ctx->base.pc_next); 4577 tcg_gen_st_tl(tmp, cpu_env, offsetof(CPUMIPSState, CP0_BadVAddr)); 4578 tcg_temp_free(tmp); 4579 generate_exception_end(ctx, EXCP_AdEL); 4580 return 2; 4581 } 4582 4583 op = extract32(ctx->opcode, 10, 6); 4584 switch (op) { 4585 case NM_P16_MV: 4586 rt = NANOMIPS_EXTRACT_RD5(ctx->opcode); 4587 if (rt != 0) { 4588 /* MOVE */ 4589 rs = NANOMIPS_EXTRACT_RS5(ctx->opcode); 4590 gen_arith(ctx, OPC_ADDU, rt, rs, 0); 4591 } else { 4592 /* P16.RI */ 4593 switch (extract32(ctx->opcode, 3, 2)) { 4594 case NM_P16_SYSCALL: 4595 if (extract32(ctx->opcode, 2, 1) == 0) { 4596 generate_exception_end(ctx, EXCP_SYSCALL); 4597 } else { 4598 gen_reserved_instruction(ctx); 4599 } 4600 break; 4601 case NM_BREAK16: 4602 generate_exception_end(ctx, EXCP_BREAK); 4603 break; 4604 case NM_SDBBP16: 4605 if (is_uhi(extract32(ctx->opcode, 0, 3))) { 4606 gen_helper_do_semihosting(cpu_env); 4607 } else { 4608 if (ctx->hflags & MIPS_HFLAG_SBRI) { 4609 gen_reserved_instruction(ctx); 4610 } else { 4611 generate_exception_end(ctx, EXCP_DBp); 4612 } 4613 } 4614 break; 4615 default: 4616 gen_reserved_instruction(ctx); 4617 break; 4618 } 4619 } 4620 break; 4621 case NM_P16_SHIFT: 4622 { 4623 int shift = extract32(ctx->opcode, 0, 3); 4624 uint32_t opc = 0; 4625 shift = (shift == 0) ? 8 : shift; 4626 4627 switch (extract32(ctx->opcode, 3, 1)) { 4628 case NM_SLL16: 4629 opc = OPC_SLL; 4630 break; 4631 case NM_SRL16: 4632 opc = OPC_SRL; 4633 break; 4634 } 4635 gen_shift_imm(ctx, opc, rt, rs, shift); 4636 } 4637 break; 4638 case NM_P16C: 4639 switch (ctx->opcode & 1) { 4640 case NM_POOL16C_0: 4641 gen_pool16c_nanomips_insn(ctx); 4642 break; 4643 case NM_LWXS16: 4644 gen_ldxs(ctx, rt, rs, rd); 4645 break; 4646 } 4647 break; 4648 case NM_P16_A1: 4649 switch (extract32(ctx->opcode, 6, 1)) { 4650 case NM_ADDIUR1SP: 4651 imm = extract32(ctx->opcode, 0, 6) << 2; 4652 gen_arith_imm(ctx, OPC_ADDIU, rt, 29, imm); 4653 break; 4654 default: 4655 gen_reserved_instruction(ctx); 4656 break; 4657 } 4658 break; 4659 case NM_P16_A2: 4660 switch (extract32(ctx->opcode, 3, 1)) { 4661 case NM_ADDIUR2: 4662 imm = extract32(ctx->opcode, 0, 3) << 2; 4663 gen_arith_imm(ctx, OPC_ADDIU, rt, rs, imm); 4664 break; 4665 case NM_P_ADDIURS5: 4666 rt = extract32(ctx->opcode, 5, 5); 4667 if (rt != 0) { 4668 /* imm = sign_extend(s[3] . s[2:0] , from_nbits = 4) */ 4669 imm = (sextract32(ctx->opcode, 4, 1) << 3) | 4670 (extract32(ctx->opcode, 0, 3)); 4671 gen_arith_imm(ctx, OPC_ADDIU, rt, rt, imm); 4672 } 4673 break; 4674 } 4675 break; 4676 case NM_P16_ADDU: 4677 switch (ctx->opcode & 0x1) { 4678 case NM_ADDU16: 4679 gen_arith(ctx, OPC_ADDU, rd, rs, rt); 4680 break; 4681 case NM_SUBU16: 4682 gen_arith(ctx, OPC_SUBU, rd, rs, rt); 4683 break; 4684 } 4685 break; 4686 case NM_P16_4X4: 4687 rt = (extract32(ctx->opcode, 9, 1) << 3) | 4688 extract32(ctx->opcode, 5, 3); 4689 rs = (extract32(ctx->opcode, 4, 1) << 3) | 4690 extract32(ctx->opcode, 0, 3); 4691 rt = decode_gpr_gpr4(rt); 4692 rs = decode_gpr_gpr4(rs); 4693 switch ((extract32(ctx->opcode, 7, 2) & 0x2) | 4694 (extract32(ctx->opcode, 3, 1))) { 4695 case NM_ADDU4X4: 4696 check_nms(ctx); 4697 gen_arith(ctx, OPC_ADDU, rt, rs, rt); 4698 break; 4699 case NM_MUL4X4: 4700 check_nms(ctx); 4701 gen_r6_muldiv(ctx, R6_OPC_MUL, rt, rs, rt); 4702 break; 4703 default: 4704 gen_reserved_instruction(ctx); 4705 break; 4706 } 4707 break; 4708 case NM_LI16: 4709 { 4710 int imm = extract32(ctx->opcode, 0, 7); 4711 imm = (imm == 0x7f ? -1 : imm); 4712 if (rt != 0) { 4713 tcg_gen_movi_tl(cpu_gpr[rt], imm); 4714 } 4715 } 4716 break; 4717 case NM_ANDI16: 4718 { 4719 uint32_t u = extract32(ctx->opcode, 0, 4); 4720 u = (u == 12) ? 0xff : 4721 (u == 13) ? 0xffff : u; 4722 gen_logic_imm(ctx, OPC_ANDI, rt, rs, u); 4723 } 4724 break; 4725 case NM_P16_LB: 4726 offset = extract32(ctx->opcode, 0, 2); 4727 switch (extract32(ctx->opcode, 2, 2)) { 4728 case NM_LB16: 4729 gen_ld(ctx, OPC_LB, rt, rs, offset); 4730 break; 4731 case NM_SB16: 4732 rt = decode_gpr_gpr3_src_store( 4733 NANOMIPS_EXTRACT_RT3(ctx->opcode)); 4734 gen_st(ctx, OPC_SB, rt, rs, offset); 4735 break; 4736 case NM_LBU16: 4737 gen_ld(ctx, OPC_LBU, rt, rs, offset); 4738 break; 4739 default: 4740 gen_reserved_instruction(ctx); 4741 break; 4742 } 4743 break; 4744 case NM_P16_LH: 4745 offset = extract32(ctx->opcode, 1, 2) << 1; 4746 switch ((extract32(ctx->opcode, 3, 1) << 1) | (ctx->opcode & 1)) { 4747 case NM_LH16: 4748 gen_ld(ctx, OPC_LH, rt, rs, offset); 4749 break; 4750 case NM_SH16: 4751 rt = decode_gpr_gpr3_src_store( 4752 NANOMIPS_EXTRACT_RT3(ctx->opcode)); 4753 gen_st(ctx, OPC_SH, rt, rs, offset); 4754 break; 4755 case NM_LHU16: 4756 gen_ld(ctx, OPC_LHU, rt, rs, offset); 4757 break; 4758 default: 4759 gen_reserved_instruction(ctx); 4760 break; 4761 } 4762 break; 4763 case NM_LW16: 4764 offset = extract32(ctx->opcode, 0, 4) << 2; 4765 gen_ld(ctx, OPC_LW, rt, rs, offset); 4766 break; 4767 case NM_LWSP16: 4768 rt = NANOMIPS_EXTRACT_RD5(ctx->opcode); 4769 offset = extract32(ctx->opcode, 0, 5) << 2; 4770 gen_ld(ctx, OPC_LW, rt, 29, offset); 4771 break; 4772 case NM_LW4X4: 4773 check_nms(ctx); 4774 rt = (extract32(ctx->opcode, 9, 1) << 3) | 4775 extract32(ctx->opcode, 5, 3); 4776 rs = (extract32(ctx->opcode, 4, 1) << 3) | 4777 extract32(ctx->opcode, 0, 3); 4778 offset = (extract32(ctx->opcode, 3, 1) << 3) | 4779 (extract32(ctx->opcode, 8, 1) << 2); 4780 rt = decode_gpr_gpr4(rt); 4781 rs = decode_gpr_gpr4(rs); 4782 gen_ld(ctx, OPC_LW, rt, rs, offset); 4783 break; 4784 case NM_SW4X4: 4785 check_nms(ctx); 4786 rt = (extract32(ctx->opcode, 9, 1) << 3) | 4787 extract32(ctx->opcode, 5, 3); 4788 rs = (extract32(ctx->opcode, 4, 1) << 3) | 4789 extract32(ctx->opcode, 0, 3); 4790 offset = (extract32(ctx->opcode, 3, 1) << 3) | 4791 (extract32(ctx->opcode, 8, 1) << 2); 4792 rt = decode_gpr_gpr4_zero(rt); 4793 rs = decode_gpr_gpr4(rs); 4794 gen_st(ctx, OPC_SW, rt, rs, offset); 4795 break; 4796 case NM_LWGP16: 4797 offset = extract32(ctx->opcode, 0, 7) << 2; 4798 gen_ld(ctx, OPC_LW, rt, 28, offset); 4799 break; 4800 case NM_SWSP16: 4801 rt = NANOMIPS_EXTRACT_RD5(ctx->opcode); 4802 offset = extract32(ctx->opcode, 0, 5) << 2; 4803 gen_st(ctx, OPC_SW, rt, 29, offset); 4804 break; 4805 case NM_SW16: 4806 rt = decode_gpr_gpr3_src_store( 4807 NANOMIPS_EXTRACT_RT3(ctx->opcode)); 4808 rs = decode_gpr_gpr3(NANOMIPS_EXTRACT_RS3(ctx->opcode)); 4809 offset = extract32(ctx->opcode, 0, 4) << 2; 4810 gen_st(ctx, OPC_SW, rt, rs, offset); 4811 break; 4812 case NM_SWGP16: 4813 rt = decode_gpr_gpr3_src_store( 4814 NANOMIPS_EXTRACT_RT3(ctx->opcode)); 4815 offset = extract32(ctx->opcode, 0, 7) << 2; 4816 gen_st(ctx, OPC_SW, rt, 28, offset); 4817 break; 4818 case NM_BC16: 4819 gen_compute_branch_nm(ctx, OPC_BEQ, 2, 0, 0, 4820 (sextract32(ctx->opcode, 0, 1) << 10) | 4821 (extract32(ctx->opcode, 1, 9) << 1)); 4822 break; 4823 case NM_BALC16: 4824 gen_compute_branch_nm(ctx, OPC_BGEZAL, 2, 0, 0, 4825 (sextract32(ctx->opcode, 0, 1) << 10) | 4826 (extract32(ctx->opcode, 1, 9) << 1)); 4827 break; 4828 case NM_BEQZC16: 4829 gen_compute_branch_nm(ctx, OPC_BEQ, 2, rt, 0, 4830 (sextract32(ctx->opcode, 0, 1) << 7) | 4831 (extract32(ctx->opcode, 1, 6) << 1)); 4832 break; 4833 case NM_BNEZC16: 4834 gen_compute_branch_nm(ctx, OPC_BNE, 2, rt, 0, 4835 (sextract32(ctx->opcode, 0, 1) << 7) | 4836 (extract32(ctx->opcode, 1, 6) << 1)); 4837 break; 4838 case NM_P16_BR: 4839 switch (ctx->opcode & 0xf) { 4840 case 0: 4841 /* P16.JRC */ 4842 switch (extract32(ctx->opcode, 4, 1)) { 4843 case NM_JRC: 4844 gen_compute_branch_nm(ctx, OPC_JR, 2, 4845 extract32(ctx->opcode, 5, 5), 0, 0); 4846 break; 4847 case NM_JALRC16: 4848 gen_compute_branch_nm(ctx, OPC_JALR, 2, 4849 extract32(ctx->opcode, 5, 5), 31, 0); 4850 break; 4851 } 4852 break; 4853 default: 4854 { 4855 /* P16.BRI */ 4856 uint32_t opc = extract32(ctx->opcode, 4, 3) < 4857 extract32(ctx->opcode, 7, 3) ? OPC_BEQ : OPC_BNE; 4858 gen_compute_branch_nm(ctx, opc, 2, rs, rt, 4859 extract32(ctx->opcode, 0, 4) << 1); 4860 } 4861 break; 4862 } 4863 break; 4864 case NM_P16_SR: 4865 { 4866 int count = extract32(ctx->opcode, 0, 4); 4867 int u = extract32(ctx->opcode, 4, 4) << 4; 4868 4869 rt = 30 + extract32(ctx->opcode, 9, 1); 4870 switch (extract32(ctx->opcode, 8, 1)) { 4871 case NM_SAVE16: 4872 gen_save(ctx, rt, count, 0, u); 4873 break; 4874 case NM_RESTORE_JRC16: 4875 gen_restore(ctx, rt, count, 0, u); 4876 gen_compute_branch_nm(ctx, OPC_JR, 2, 31, 0, 0); 4877 break; 4878 } 4879 } 4880 break; 4881 case NM_MOVEP: 4882 case NM_MOVEPREV: 4883 check_nms(ctx); 4884 { 4885 static const int gpr2reg1[] = {4, 5, 6, 7}; 4886 static const int gpr2reg2[] = {5, 6, 7, 8}; 4887 int re; 4888 int rd2 = extract32(ctx->opcode, 3, 1) << 1 | 4889 extract32(ctx->opcode, 8, 1); 4890 int r1 = gpr2reg1[rd2]; 4891 int r2 = gpr2reg2[rd2]; 4892 int r3 = extract32(ctx->opcode, 4, 1) << 3 | 4893 extract32(ctx->opcode, 0, 3); 4894 int r4 = extract32(ctx->opcode, 9, 1) << 3 | 4895 extract32(ctx->opcode, 5, 3); 4896 TCGv t0 = tcg_temp_new(); 4897 TCGv t1 = tcg_temp_new(); 4898 if (op == NM_MOVEP) { 4899 rd = r1; 4900 re = r2; 4901 rs = decode_gpr_gpr4_zero(r3); 4902 rt = decode_gpr_gpr4_zero(r4); 4903 } else { 4904 rd = decode_gpr_gpr4(r3); 4905 re = decode_gpr_gpr4(r4); 4906 rs = r1; 4907 rt = r2; 4908 } 4909 gen_load_gpr(t0, rs); 4910 gen_load_gpr(t1, rt); 4911 tcg_gen_mov_tl(cpu_gpr[rd], t0); 4912 tcg_gen_mov_tl(cpu_gpr[re], t1); 4913 tcg_temp_free(t0); 4914 tcg_temp_free(t1); 4915 } 4916 break; 4917 default: 4918 return decode_nanomips_32_48_opc(env, ctx); 4919 } 4920 4921 return 2; 4922} 4923