1 /* 2 * OpenRISC translation 3 * 4 * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com> 5 * Feng Gao <gf91597@gmail.com> 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 19 */ 20 21 #include "qemu/osdep.h" 22 #include "cpu.h" 23 #include "exec/exec-all.h" 24 #include "disas/disas.h" 25 #include "tcg-op.h" 26 #include "qemu-common.h" 27 #include "qemu/log.h" 28 #include "qemu/bitops.h" 29 #include "exec/cpu_ldst.h" 30 #include "exec/translator.h" 31 32 #include "exec/helper-proto.h" 33 #include "exec/helper-gen.h" 34 35 #include "trace-tcg.h" 36 #include "exec/log.h" 37 38 #define LOG_DIS(str, ...) \ 39 qemu_log_mask(CPU_LOG_TB_IN_ASM, "%08x: " str, dc->pc, ## __VA_ARGS__) 40 41 /* is_jmp field values */ 42 #define DISAS_JUMP DISAS_TARGET_0 /* only pc was modified dynamically */ 43 #define DISAS_UPDATE DISAS_TARGET_1 /* cpu state was modified dynamically */ 44 #define DISAS_TB_JUMP DISAS_TARGET_2 /* only pc was modified statically */ 45 46 typedef struct DisasContext { 47 TranslationBlock *tb; 48 target_ulong pc; 49 uint32_t is_jmp; 50 uint32_t mem_idx; 51 uint32_t tb_flags; 52 uint32_t delayed_branch; 53 bool singlestep_enabled; 54 } DisasContext; 55 56 static TCGv cpu_sr; 57 static TCGv cpu_R[32]; 58 static TCGv cpu_R0; 59 static TCGv cpu_pc; 60 static TCGv jmp_pc; /* l.jr/l.jalr temp pc */ 61 static TCGv cpu_ppc; 62 static TCGv cpu_sr_f; /* bf/bnf, F flag taken */ 63 static TCGv cpu_sr_cy; /* carry (unsigned overflow) */ 64 static TCGv cpu_sr_ov; /* signed overflow */ 65 static TCGv cpu_lock_addr; 66 static TCGv cpu_lock_value; 67 static TCGv_i32 fpcsr; 68 static TCGv_i64 cpu_mac; /* MACHI:MACLO */ 69 static TCGv_i32 cpu_dflag; 70 #include "exec/gen-icount.h" 71 72 void openrisc_translate_init(void) 73 { 74 static const char * const regnames[] = { 75 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", 76 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", 77 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", 78 "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", 79 }; 80 int i; 81 82 cpu_sr = tcg_global_mem_new(cpu_env, 83 offsetof(CPUOpenRISCState, sr), "sr"); 84 cpu_dflag = tcg_global_mem_new_i32(cpu_env, 85 offsetof(CPUOpenRISCState, dflag), 86 "dflag"); 87 cpu_pc = tcg_global_mem_new(cpu_env, 88 offsetof(CPUOpenRISCState, pc), "pc"); 89 cpu_ppc = tcg_global_mem_new(cpu_env, 90 offsetof(CPUOpenRISCState, ppc), "ppc"); 91 jmp_pc = tcg_global_mem_new(cpu_env, 92 offsetof(CPUOpenRISCState, jmp_pc), "jmp_pc"); 93 cpu_sr_f = tcg_global_mem_new(cpu_env, 94 offsetof(CPUOpenRISCState, sr_f), "sr_f"); 95 cpu_sr_cy = tcg_global_mem_new(cpu_env, 96 offsetof(CPUOpenRISCState, sr_cy), "sr_cy"); 97 cpu_sr_ov = tcg_global_mem_new(cpu_env, 98 offsetof(CPUOpenRISCState, sr_ov), "sr_ov"); 99 cpu_lock_addr = tcg_global_mem_new(cpu_env, 100 offsetof(CPUOpenRISCState, lock_addr), 101 "lock_addr"); 102 cpu_lock_value = tcg_global_mem_new(cpu_env, 103 offsetof(CPUOpenRISCState, lock_value), 104 "lock_value"); 105 fpcsr = tcg_global_mem_new_i32(cpu_env, 106 offsetof(CPUOpenRISCState, fpcsr), 107 "fpcsr"); 108 cpu_mac = tcg_global_mem_new_i64(cpu_env, 109 offsetof(CPUOpenRISCState, mac), 110 "mac"); 111 for (i = 0; i < 32; i++) { 112 cpu_R[i] = tcg_global_mem_new(cpu_env, 113 offsetof(CPUOpenRISCState, 114 shadow_gpr[0][i]), 115 regnames[i]); 116 } 117 cpu_R0 = cpu_R[0]; 118 } 119 120 static void gen_exception(DisasContext *dc, unsigned int excp) 121 { 122 TCGv_i32 tmp = tcg_const_i32(excp); 123 gen_helper_exception(cpu_env, tmp); 124 tcg_temp_free_i32(tmp); 125 } 126 127 static void gen_illegal_exception(DisasContext *dc) 128 { 129 tcg_gen_movi_tl(cpu_pc, dc->pc); 130 gen_exception(dc, EXCP_ILLEGAL); 131 dc->is_jmp = DISAS_UPDATE; 132 } 133 134 /* not used yet, open it when we need or64. */ 135 /*#ifdef TARGET_OPENRISC64 136 static void check_ob64s(DisasContext *dc) 137 { 138 if (!(dc->flags & CPUCFGR_OB64S)) { 139 gen_illegal_exception(dc); 140 } 141 } 142 143 static void check_of64s(DisasContext *dc) 144 { 145 if (!(dc->flags & CPUCFGR_OF64S)) { 146 gen_illegal_exception(dc); 147 } 148 } 149 150 static void check_ov64s(DisasContext *dc) 151 { 152 if (!(dc->flags & CPUCFGR_OV64S)) { 153 gen_illegal_exception(dc); 154 } 155 } 156 #endif*/ 157 158 /* We're about to write to REG. On the off-chance that the user is 159 writing to R0, re-instate the architectural register. */ 160 #define check_r0_write(reg) \ 161 do { \ 162 if (unlikely(reg == 0)) { \ 163 cpu_R[0] = cpu_R0; \ 164 } \ 165 } while (0) 166 167 static inline bool use_goto_tb(DisasContext *dc, target_ulong dest) 168 { 169 if (unlikely(dc->singlestep_enabled)) { 170 return false; 171 } 172 173 #ifndef CONFIG_USER_ONLY 174 return (dc->tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK); 175 #else 176 return true; 177 #endif 178 } 179 180 static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest) 181 { 182 if (use_goto_tb(dc, dest)) { 183 tcg_gen_movi_tl(cpu_pc, dest); 184 tcg_gen_goto_tb(n); 185 tcg_gen_exit_tb((uintptr_t)dc->tb + n); 186 } else { 187 tcg_gen_movi_tl(cpu_pc, dest); 188 if (dc->singlestep_enabled) { 189 gen_exception(dc, EXCP_DEBUG); 190 } 191 tcg_gen_exit_tb(0); 192 } 193 } 194 195 static void gen_jump(DisasContext *dc, int32_t n26, uint32_t reg, uint32_t op0) 196 { 197 target_ulong tmp_pc = dc->pc + n26 * 4; 198 199 switch (op0) { 200 case 0x00: /* l.j */ 201 tcg_gen_movi_tl(jmp_pc, tmp_pc); 202 break; 203 case 0x01: /* l.jal */ 204 tcg_gen_movi_tl(cpu_R[9], dc->pc + 8); 205 /* Optimize jal being used to load the PC for PIC. */ 206 if (tmp_pc == dc->pc + 8) { 207 return; 208 } 209 tcg_gen_movi_tl(jmp_pc, tmp_pc); 210 break; 211 case 0x03: /* l.bnf */ 212 case 0x04: /* l.bf */ 213 { 214 TCGv t_next = tcg_const_tl(dc->pc + 8); 215 TCGv t_true = tcg_const_tl(tmp_pc); 216 TCGv t_zero = tcg_const_tl(0); 217 218 tcg_gen_movcond_tl(op0 == 0x03 ? TCG_COND_EQ : TCG_COND_NE, 219 jmp_pc, cpu_sr_f, t_zero, t_true, t_next); 220 221 tcg_temp_free(t_next); 222 tcg_temp_free(t_true); 223 tcg_temp_free(t_zero); 224 } 225 break; 226 case 0x11: /* l.jr */ 227 tcg_gen_mov_tl(jmp_pc, cpu_R[reg]); 228 break; 229 case 0x12: /* l.jalr */ 230 tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8)); 231 tcg_gen_mov_tl(jmp_pc, cpu_R[reg]); 232 break; 233 default: 234 gen_illegal_exception(dc); 235 break; 236 } 237 238 dc->delayed_branch = 2; 239 } 240 241 static void gen_ove_cy(DisasContext *dc) 242 { 243 if (dc->tb_flags & SR_OVE) { 244 gen_helper_ove_cy(cpu_env); 245 } 246 } 247 248 static void gen_ove_ov(DisasContext *dc) 249 { 250 if (dc->tb_flags & SR_OVE) { 251 gen_helper_ove_ov(cpu_env); 252 } 253 } 254 255 static void gen_ove_cyov(DisasContext *dc) 256 { 257 if (dc->tb_flags & SR_OVE) { 258 gen_helper_ove_cyov(cpu_env); 259 } 260 } 261 262 static void gen_add(DisasContext *dc, TCGv dest, TCGv srca, TCGv srcb) 263 { 264 TCGv t0 = tcg_const_tl(0); 265 TCGv res = tcg_temp_new(); 266 267 tcg_gen_add2_tl(res, cpu_sr_cy, srca, t0, srcb, t0); 268 tcg_gen_xor_tl(cpu_sr_ov, srca, srcb); 269 tcg_gen_xor_tl(t0, res, srcb); 270 tcg_gen_andc_tl(cpu_sr_ov, t0, cpu_sr_ov); 271 tcg_temp_free(t0); 272 273 tcg_gen_mov_tl(dest, res); 274 tcg_temp_free(res); 275 276 gen_ove_cyov(dc); 277 } 278 279 static void gen_addc(DisasContext *dc, TCGv dest, TCGv srca, TCGv srcb) 280 { 281 TCGv t0 = tcg_const_tl(0); 282 TCGv res = tcg_temp_new(); 283 284 tcg_gen_add2_tl(res, cpu_sr_cy, srca, t0, cpu_sr_cy, t0); 285 tcg_gen_add2_tl(res, cpu_sr_cy, res, cpu_sr_cy, srcb, t0); 286 tcg_gen_xor_tl(cpu_sr_ov, srca, srcb); 287 tcg_gen_xor_tl(t0, res, srcb); 288 tcg_gen_andc_tl(cpu_sr_ov, t0, cpu_sr_ov); 289 tcg_temp_free(t0); 290 291 tcg_gen_mov_tl(dest, res); 292 tcg_temp_free(res); 293 294 gen_ove_cyov(dc); 295 } 296 297 static void gen_sub(DisasContext *dc, TCGv dest, TCGv srca, TCGv srcb) 298 { 299 TCGv res = tcg_temp_new(); 300 301 tcg_gen_sub_tl(res, srca, srcb); 302 tcg_gen_xor_tl(cpu_sr_cy, srca, srcb); 303 tcg_gen_xor_tl(cpu_sr_ov, res, srcb); 304 tcg_gen_and_tl(cpu_sr_ov, cpu_sr_ov, cpu_sr_cy); 305 tcg_gen_setcond_tl(TCG_COND_LTU, cpu_sr_cy, srca, srcb); 306 307 tcg_gen_mov_tl(dest, res); 308 tcg_temp_free(res); 309 310 gen_ove_cyov(dc); 311 } 312 313 static void gen_mul(DisasContext *dc, TCGv dest, TCGv srca, TCGv srcb) 314 { 315 TCGv t0 = tcg_temp_new(); 316 317 tcg_gen_muls2_tl(dest, cpu_sr_ov, srca, srcb); 318 tcg_gen_sari_tl(t0, dest, TARGET_LONG_BITS - 1); 319 tcg_gen_setcond_tl(TCG_COND_NE, cpu_sr_ov, cpu_sr_ov, t0); 320 tcg_temp_free(t0); 321 322 tcg_gen_neg_tl(cpu_sr_ov, cpu_sr_ov); 323 gen_ove_ov(dc); 324 } 325 326 static void gen_mulu(DisasContext *dc, TCGv dest, TCGv srca, TCGv srcb) 327 { 328 tcg_gen_muls2_tl(dest, cpu_sr_cy, srca, srcb); 329 tcg_gen_setcondi_tl(TCG_COND_NE, cpu_sr_cy, cpu_sr_cy, 0); 330 331 gen_ove_cy(dc); 332 } 333 334 static void gen_div(DisasContext *dc, TCGv dest, TCGv srca, TCGv srcb) 335 { 336 TCGv t0 = tcg_temp_new(); 337 338 tcg_gen_setcondi_tl(TCG_COND_EQ, cpu_sr_ov, srcb, 0); 339 /* The result of divide-by-zero is undefined. 340 Supress the host-side exception by dividing by 1. */ 341 tcg_gen_or_tl(t0, srcb, cpu_sr_ov); 342 tcg_gen_div_tl(dest, srca, t0); 343 tcg_temp_free(t0); 344 345 tcg_gen_neg_tl(cpu_sr_ov, cpu_sr_ov); 346 gen_ove_ov(dc); 347 } 348 349 static void gen_divu(DisasContext *dc, TCGv dest, TCGv srca, TCGv srcb) 350 { 351 TCGv t0 = tcg_temp_new(); 352 353 tcg_gen_setcondi_tl(TCG_COND_EQ, cpu_sr_cy, srcb, 0); 354 /* The result of divide-by-zero is undefined. 355 Supress the host-side exception by dividing by 1. */ 356 tcg_gen_or_tl(t0, srcb, cpu_sr_cy); 357 tcg_gen_divu_tl(dest, srca, t0); 358 tcg_temp_free(t0); 359 360 gen_ove_cy(dc); 361 } 362 363 static void gen_muld(DisasContext *dc, TCGv srca, TCGv srcb) 364 { 365 TCGv_i64 t1 = tcg_temp_new_i64(); 366 TCGv_i64 t2 = tcg_temp_new_i64(); 367 368 tcg_gen_ext_tl_i64(t1, srca); 369 tcg_gen_ext_tl_i64(t2, srcb); 370 if (TARGET_LONG_BITS == 32) { 371 tcg_gen_mul_i64(cpu_mac, t1, t2); 372 tcg_gen_movi_tl(cpu_sr_ov, 0); 373 } else { 374 TCGv_i64 high = tcg_temp_new_i64(); 375 376 tcg_gen_muls2_i64(cpu_mac, high, t1, t2); 377 tcg_gen_sari_i64(t1, cpu_mac, 63); 378 tcg_gen_setcond_i64(TCG_COND_NE, t1, t1, high); 379 tcg_temp_free_i64(high); 380 tcg_gen_trunc_i64_tl(cpu_sr_ov, t1); 381 tcg_gen_neg_tl(cpu_sr_ov, cpu_sr_ov); 382 383 gen_ove_ov(dc); 384 } 385 tcg_temp_free_i64(t1); 386 tcg_temp_free_i64(t2); 387 } 388 389 static void gen_muldu(DisasContext *dc, TCGv srca, TCGv srcb) 390 { 391 TCGv_i64 t1 = tcg_temp_new_i64(); 392 TCGv_i64 t2 = tcg_temp_new_i64(); 393 394 tcg_gen_extu_tl_i64(t1, srca); 395 tcg_gen_extu_tl_i64(t2, srcb); 396 if (TARGET_LONG_BITS == 32) { 397 tcg_gen_mul_i64(cpu_mac, t1, t2); 398 tcg_gen_movi_tl(cpu_sr_cy, 0); 399 } else { 400 TCGv_i64 high = tcg_temp_new_i64(); 401 402 tcg_gen_mulu2_i64(cpu_mac, high, t1, t2); 403 tcg_gen_setcondi_i64(TCG_COND_NE, high, high, 0); 404 tcg_gen_trunc_i64_tl(cpu_sr_cy, high); 405 tcg_temp_free_i64(high); 406 407 gen_ove_cy(dc); 408 } 409 tcg_temp_free_i64(t1); 410 tcg_temp_free_i64(t2); 411 } 412 413 static void gen_mac(DisasContext *dc, TCGv srca, TCGv srcb) 414 { 415 TCGv_i64 t1 = tcg_temp_new_i64(); 416 TCGv_i64 t2 = tcg_temp_new_i64(); 417 418 tcg_gen_ext_tl_i64(t1, srca); 419 tcg_gen_ext_tl_i64(t2, srcb); 420 tcg_gen_mul_i64(t1, t1, t2); 421 422 /* Note that overflow is only computed during addition stage. */ 423 tcg_gen_xor_i64(t2, cpu_mac, t1); 424 tcg_gen_add_i64(cpu_mac, cpu_mac, t1); 425 tcg_gen_xor_i64(t1, t1, cpu_mac); 426 tcg_gen_andc_i64(t1, t1, t2); 427 tcg_temp_free_i64(t2); 428 429 #if TARGET_LONG_BITS == 32 430 tcg_gen_extrh_i64_i32(cpu_sr_ov, t1); 431 #else 432 tcg_gen_mov_i64(cpu_sr_ov, t1); 433 #endif 434 tcg_temp_free_i64(t1); 435 436 gen_ove_ov(dc); 437 } 438 439 static void gen_macu(DisasContext *dc, TCGv srca, TCGv srcb) 440 { 441 TCGv_i64 t1 = tcg_temp_new_i64(); 442 TCGv_i64 t2 = tcg_temp_new_i64(); 443 444 tcg_gen_extu_tl_i64(t1, srca); 445 tcg_gen_extu_tl_i64(t2, srcb); 446 tcg_gen_mul_i64(t1, t1, t2); 447 tcg_temp_free_i64(t2); 448 449 /* Note that overflow is only computed during addition stage. */ 450 tcg_gen_add_i64(cpu_mac, cpu_mac, t1); 451 tcg_gen_setcond_i64(TCG_COND_LTU, t1, cpu_mac, t1); 452 tcg_gen_trunc_i64_tl(cpu_sr_cy, t1); 453 tcg_temp_free_i64(t1); 454 455 gen_ove_cy(dc); 456 } 457 458 static void gen_msb(DisasContext *dc, TCGv srca, TCGv srcb) 459 { 460 TCGv_i64 t1 = tcg_temp_new_i64(); 461 TCGv_i64 t2 = tcg_temp_new_i64(); 462 463 tcg_gen_ext_tl_i64(t1, srca); 464 tcg_gen_ext_tl_i64(t2, srcb); 465 tcg_gen_mul_i64(t1, t1, t2); 466 467 /* Note that overflow is only computed during subtraction stage. */ 468 tcg_gen_xor_i64(t2, cpu_mac, t1); 469 tcg_gen_sub_i64(cpu_mac, cpu_mac, t1); 470 tcg_gen_xor_i64(t1, t1, cpu_mac); 471 tcg_gen_and_i64(t1, t1, t2); 472 tcg_temp_free_i64(t2); 473 474 #if TARGET_LONG_BITS == 32 475 tcg_gen_extrh_i64_i32(cpu_sr_ov, t1); 476 #else 477 tcg_gen_mov_i64(cpu_sr_ov, t1); 478 #endif 479 tcg_temp_free_i64(t1); 480 481 gen_ove_ov(dc); 482 } 483 484 static void gen_msbu(DisasContext *dc, TCGv srca, TCGv srcb) 485 { 486 TCGv_i64 t1 = tcg_temp_new_i64(); 487 TCGv_i64 t2 = tcg_temp_new_i64(); 488 489 tcg_gen_extu_tl_i64(t1, srca); 490 tcg_gen_extu_tl_i64(t2, srcb); 491 tcg_gen_mul_i64(t1, t1, t2); 492 493 /* Note that overflow is only computed during subtraction stage. */ 494 tcg_gen_setcond_i64(TCG_COND_LTU, t2, cpu_mac, t1); 495 tcg_gen_sub_i64(cpu_mac, cpu_mac, t1); 496 tcg_gen_trunc_i64_tl(cpu_sr_cy, t2); 497 tcg_temp_free_i64(t2); 498 tcg_temp_free_i64(t1); 499 500 gen_ove_cy(dc); 501 } 502 503 static void gen_lwa(DisasContext *dc, TCGv rd, TCGv ra, int32_t ofs) 504 { 505 TCGv ea = tcg_temp_new(); 506 507 tcg_gen_addi_tl(ea, ra, ofs); 508 tcg_gen_qemu_ld_tl(rd, ea, dc->mem_idx, MO_TEUL); 509 tcg_gen_mov_tl(cpu_lock_addr, ea); 510 tcg_gen_mov_tl(cpu_lock_value, rd); 511 tcg_temp_free(ea); 512 } 513 514 static void gen_swa(DisasContext *dc, int b, TCGv ra, int32_t ofs) 515 { 516 TCGv ea, val; 517 TCGLabel *lab_fail, *lab_done; 518 519 ea = tcg_temp_new(); 520 tcg_gen_addi_tl(ea, ra, ofs); 521 522 /* For TB_FLAGS_R0_0, the branch below invalidates the temporary assigned 523 to cpu_R[0]. Since l.swa is quite often immediately followed by a 524 branch, don't bother reallocating; finish the TB using the "real" R0. 525 This also takes care of RB input across the branch. */ 526 cpu_R[0] = cpu_R0; 527 528 lab_fail = gen_new_label(); 529 lab_done = gen_new_label(); 530 tcg_gen_brcond_tl(TCG_COND_NE, ea, cpu_lock_addr, lab_fail); 531 tcg_temp_free(ea); 532 533 val = tcg_temp_new(); 534 tcg_gen_atomic_cmpxchg_tl(val, cpu_lock_addr, cpu_lock_value, 535 cpu_R[b], dc->mem_idx, MO_TEUL); 536 tcg_gen_setcond_tl(TCG_COND_EQ, cpu_sr_f, val, cpu_lock_value); 537 tcg_temp_free(val); 538 539 tcg_gen_br(lab_done); 540 541 gen_set_label(lab_fail); 542 tcg_gen_movi_tl(cpu_sr_f, 0); 543 544 gen_set_label(lab_done); 545 tcg_gen_movi_tl(cpu_lock_addr, -1); 546 } 547 548 static void dec_calc(DisasContext *dc, uint32_t insn) 549 { 550 uint32_t op0, op1, op2; 551 uint32_t ra, rb, rd; 552 op0 = extract32(insn, 0, 4); 553 op1 = extract32(insn, 8, 2); 554 op2 = extract32(insn, 6, 2); 555 ra = extract32(insn, 16, 5); 556 rb = extract32(insn, 11, 5); 557 rd = extract32(insn, 21, 5); 558 559 switch (op1) { 560 case 0: 561 switch (op0) { 562 case 0x0: /* l.add */ 563 LOG_DIS("l.add r%d, r%d, r%d\n", rd, ra, rb); 564 gen_add(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]); 565 return; 566 567 case 0x1: /* l.addc */ 568 LOG_DIS("l.addc r%d, r%d, r%d\n", rd, ra, rb); 569 gen_addc(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]); 570 return; 571 572 case 0x2: /* l.sub */ 573 LOG_DIS("l.sub r%d, r%d, r%d\n", rd, ra, rb); 574 gen_sub(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]); 575 return; 576 577 case 0x3: /* l.and */ 578 LOG_DIS("l.and r%d, r%d, r%d\n", rd, ra, rb); 579 tcg_gen_and_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); 580 return; 581 582 case 0x4: /* l.or */ 583 LOG_DIS("l.or r%d, r%d, r%d\n", rd, ra, rb); 584 tcg_gen_or_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); 585 return; 586 587 case 0x5: /* l.xor */ 588 LOG_DIS("l.xor r%d, r%d, r%d\n", rd, ra, rb); 589 tcg_gen_xor_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); 590 return; 591 592 case 0x8: 593 switch (op2) { 594 case 0: /* l.sll */ 595 LOG_DIS("l.sll r%d, r%d, r%d\n", rd, ra, rb); 596 tcg_gen_shl_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); 597 return; 598 case 1: /* l.srl */ 599 LOG_DIS("l.srl r%d, r%d, r%d\n", rd, ra, rb); 600 tcg_gen_shr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); 601 return; 602 case 2: /* l.sra */ 603 LOG_DIS("l.sra r%d, r%d, r%d\n", rd, ra, rb); 604 tcg_gen_sar_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); 605 return; 606 case 3: /* l.ror */ 607 LOG_DIS("l.ror r%d, r%d, r%d\n", rd, ra, rb); 608 tcg_gen_rotr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); 609 return; 610 } 611 break; 612 613 case 0xc: 614 switch (op2) { 615 case 0: /* l.exths */ 616 LOG_DIS("l.exths r%d, r%d\n", rd, ra); 617 tcg_gen_ext16s_tl(cpu_R[rd], cpu_R[ra]); 618 return; 619 case 1: /* l.extbs */ 620 LOG_DIS("l.extbs r%d, r%d\n", rd, ra); 621 tcg_gen_ext8s_tl(cpu_R[rd], cpu_R[ra]); 622 return; 623 case 2: /* l.exthz */ 624 LOG_DIS("l.exthz r%d, r%d\n", rd, ra); 625 tcg_gen_ext16u_tl(cpu_R[rd], cpu_R[ra]); 626 return; 627 case 3: /* l.extbz */ 628 LOG_DIS("l.extbz r%d, r%d\n", rd, ra); 629 tcg_gen_ext8u_tl(cpu_R[rd], cpu_R[ra]); 630 return; 631 } 632 break; 633 634 case 0xd: 635 switch (op2) { 636 case 0: /* l.extws */ 637 LOG_DIS("l.extws r%d, r%d\n", rd, ra); 638 tcg_gen_ext32s_tl(cpu_R[rd], cpu_R[ra]); 639 return; 640 case 1: /* l.extwz */ 641 LOG_DIS("l.extwz r%d, r%d\n", rd, ra); 642 tcg_gen_ext32u_tl(cpu_R[rd], cpu_R[ra]); 643 return; 644 } 645 break; 646 647 case 0xe: /* l.cmov */ 648 LOG_DIS("l.cmov r%d, r%d, r%d\n", rd, ra, rb); 649 { 650 TCGv zero = tcg_const_tl(0); 651 tcg_gen_movcond_tl(TCG_COND_NE, cpu_R[rd], cpu_sr_f, zero, 652 cpu_R[ra], cpu_R[rb]); 653 tcg_temp_free(zero); 654 } 655 return; 656 657 case 0xf: /* l.ff1 */ 658 LOG_DIS("l.ff1 r%d, r%d, r%d\n", rd, ra, rb); 659 tcg_gen_ctzi_tl(cpu_R[rd], cpu_R[ra], -1); 660 tcg_gen_addi_tl(cpu_R[rd], cpu_R[rd], 1); 661 return; 662 } 663 break; 664 665 case 1: 666 switch (op0) { 667 case 0xf: /* l.fl1 */ 668 LOG_DIS("l.fl1 r%d, r%d, r%d\n", rd, ra, rb); 669 tcg_gen_clzi_tl(cpu_R[rd], cpu_R[ra], TARGET_LONG_BITS); 670 tcg_gen_subfi_tl(cpu_R[rd], TARGET_LONG_BITS, cpu_R[rd]); 671 return; 672 } 673 break; 674 675 case 2: 676 break; 677 678 case 3: 679 switch (op0) { 680 case 0x6: /* l.mul */ 681 LOG_DIS("l.mul r%d, r%d, r%d\n", rd, ra, rb); 682 gen_mul(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]); 683 return; 684 685 case 0x7: /* l.muld */ 686 LOG_DIS("l.muld r%d, r%d\n", ra, rb); 687 gen_muld(dc, cpu_R[ra], cpu_R[rb]); 688 break; 689 690 case 0x9: /* l.div */ 691 LOG_DIS("l.div r%d, r%d, r%d\n", rd, ra, rb); 692 gen_div(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]); 693 return; 694 695 case 0xa: /* l.divu */ 696 LOG_DIS("l.divu r%d, r%d, r%d\n", rd, ra, rb); 697 gen_divu(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]); 698 return; 699 700 case 0xb: /* l.mulu */ 701 LOG_DIS("l.mulu r%d, r%d, r%d\n", rd, ra, rb); 702 gen_mulu(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]); 703 return; 704 705 case 0xc: /* l.muldu */ 706 LOG_DIS("l.muldu r%d, r%d\n", ra, rb); 707 gen_muldu(dc, cpu_R[ra], cpu_R[rb]); 708 return; 709 } 710 break; 711 } 712 gen_illegal_exception(dc); 713 } 714 715 static void dec_misc(DisasContext *dc, uint32_t insn) 716 { 717 uint32_t op0, op1; 718 uint32_t ra, rb, rd; 719 uint32_t L6, K5, K16, K5_11; 720 int32_t I16, I5_11, N26; 721 TCGMemOp mop; 722 TCGv t0; 723 724 op0 = extract32(insn, 26, 6); 725 op1 = extract32(insn, 24, 2); 726 ra = extract32(insn, 16, 5); 727 rb = extract32(insn, 11, 5); 728 rd = extract32(insn, 21, 5); 729 L6 = extract32(insn, 5, 6); 730 K5 = extract32(insn, 0, 5); 731 K16 = extract32(insn, 0, 16); 732 I16 = (int16_t)K16; 733 N26 = sextract32(insn, 0, 26); 734 K5_11 = (extract32(insn, 21, 5) << 11) | extract32(insn, 0, 11); 735 I5_11 = (int16_t)K5_11; 736 737 switch (op0) { 738 case 0x00: /* l.j */ 739 LOG_DIS("l.j %d\n", N26); 740 gen_jump(dc, N26, 0, op0); 741 break; 742 743 case 0x01: /* l.jal */ 744 LOG_DIS("l.jal %d\n", N26); 745 gen_jump(dc, N26, 0, op0); 746 break; 747 748 case 0x03: /* l.bnf */ 749 LOG_DIS("l.bnf %d\n", N26); 750 gen_jump(dc, N26, 0, op0); 751 break; 752 753 case 0x04: /* l.bf */ 754 LOG_DIS("l.bf %d\n", N26); 755 gen_jump(dc, N26, 0, op0); 756 break; 757 758 case 0x05: 759 switch (op1) { 760 case 0x01: /* l.nop */ 761 LOG_DIS("l.nop %d\n", I16); 762 break; 763 764 default: 765 gen_illegal_exception(dc); 766 break; 767 } 768 break; 769 770 case 0x11: /* l.jr */ 771 LOG_DIS("l.jr r%d\n", rb); 772 gen_jump(dc, 0, rb, op0); 773 break; 774 775 case 0x12: /* l.jalr */ 776 LOG_DIS("l.jalr r%d\n", rb); 777 gen_jump(dc, 0, rb, op0); 778 break; 779 780 case 0x13: /* l.maci */ 781 LOG_DIS("l.maci r%d, %d\n", ra, I16); 782 t0 = tcg_const_tl(I16); 783 gen_mac(dc, cpu_R[ra], t0); 784 tcg_temp_free(t0); 785 break; 786 787 case 0x09: /* l.rfe */ 788 LOG_DIS("l.rfe\n"); 789 { 790 #if defined(CONFIG_USER_ONLY) 791 return; 792 #else 793 if (dc->mem_idx == MMU_USER_IDX) { 794 gen_illegal_exception(dc); 795 return; 796 } 797 gen_helper_rfe(cpu_env); 798 dc->is_jmp = DISAS_UPDATE; 799 #endif 800 } 801 break; 802 803 case 0x1b: /* l.lwa */ 804 LOG_DIS("l.lwa r%d, r%d, %d\n", rd, ra, I16); 805 check_r0_write(rd); 806 gen_lwa(dc, cpu_R[rd], cpu_R[ra], I16); 807 break; 808 809 case 0x1c: /* l.cust1 */ 810 LOG_DIS("l.cust1\n"); 811 break; 812 813 case 0x1d: /* l.cust2 */ 814 LOG_DIS("l.cust2\n"); 815 break; 816 817 case 0x1e: /* l.cust3 */ 818 LOG_DIS("l.cust3\n"); 819 break; 820 821 case 0x1f: /* l.cust4 */ 822 LOG_DIS("l.cust4\n"); 823 break; 824 825 case 0x3c: /* l.cust5 */ 826 LOG_DIS("l.cust5 r%d, r%d, r%d, %d, %d\n", rd, ra, rb, L6, K5); 827 break; 828 829 case 0x3d: /* l.cust6 */ 830 LOG_DIS("l.cust6\n"); 831 break; 832 833 case 0x3e: /* l.cust7 */ 834 LOG_DIS("l.cust7\n"); 835 break; 836 837 case 0x3f: /* l.cust8 */ 838 LOG_DIS("l.cust8\n"); 839 break; 840 841 /* not used yet, open it when we need or64. */ 842 /*#ifdef TARGET_OPENRISC64 843 case 0x20: l.ld 844 LOG_DIS("l.ld r%d, r%d, %d\n", rd, ra, I16); 845 check_ob64s(dc); 846 mop = MO_TEQ; 847 goto do_load; 848 #endif*/ 849 850 case 0x21: /* l.lwz */ 851 LOG_DIS("l.lwz r%d, r%d, %d\n", rd, ra, I16); 852 mop = MO_TEUL; 853 goto do_load; 854 855 case 0x22: /* l.lws */ 856 LOG_DIS("l.lws r%d, r%d, %d\n", rd, ra, I16); 857 mop = MO_TESL; 858 goto do_load; 859 860 case 0x23: /* l.lbz */ 861 LOG_DIS("l.lbz r%d, r%d, %d\n", rd, ra, I16); 862 mop = MO_UB; 863 goto do_load; 864 865 case 0x24: /* l.lbs */ 866 LOG_DIS("l.lbs r%d, r%d, %d\n", rd, ra, I16); 867 mop = MO_SB; 868 goto do_load; 869 870 case 0x25: /* l.lhz */ 871 LOG_DIS("l.lhz r%d, r%d, %d\n", rd, ra, I16); 872 mop = MO_TEUW; 873 goto do_load; 874 875 case 0x26: /* l.lhs */ 876 LOG_DIS("l.lhs r%d, r%d, %d\n", rd, ra, I16); 877 mop = MO_TESW; 878 goto do_load; 879 880 do_load: 881 check_r0_write(rd); 882 t0 = tcg_temp_new(); 883 tcg_gen_addi_tl(t0, cpu_R[ra], I16); 884 tcg_gen_qemu_ld_tl(cpu_R[rd], t0, dc->mem_idx, mop); 885 tcg_temp_free(t0); 886 break; 887 888 case 0x27: /* l.addi */ 889 LOG_DIS("l.addi r%d, r%d, %d\n", rd, ra, I16); 890 check_r0_write(rd); 891 t0 = tcg_const_tl(I16); 892 gen_add(dc, cpu_R[rd], cpu_R[ra], t0); 893 tcg_temp_free(t0); 894 break; 895 896 case 0x28: /* l.addic */ 897 LOG_DIS("l.addic r%d, r%d, %d\n", rd, ra, I16); 898 check_r0_write(rd); 899 t0 = tcg_const_tl(I16); 900 gen_addc(dc, cpu_R[rd], cpu_R[ra], t0); 901 tcg_temp_free(t0); 902 break; 903 904 case 0x29: /* l.andi */ 905 LOG_DIS("l.andi r%d, r%d, %d\n", rd, ra, K16); 906 check_r0_write(rd); 907 tcg_gen_andi_tl(cpu_R[rd], cpu_R[ra], K16); 908 break; 909 910 case 0x2a: /* l.ori */ 911 LOG_DIS("l.ori r%d, r%d, %d\n", rd, ra, K16); 912 check_r0_write(rd); 913 tcg_gen_ori_tl(cpu_R[rd], cpu_R[ra], K16); 914 break; 915 916 case 0x2b: /* l.xori */ 917 LOG_DIS("l.xori r%d, r%d, %d\n", rd, ra, I16); 918 check_r0_write(rd); 919 tcg_gen_xori_tl(cpu_R[rd], cpu_R[ra], I16); 920 break; 921 922 case 0x2c: /* l.muli */ 923 LOG_DIS("l.muli r%d, r%d, %d\n", rd, ra, I16); 924 check_r0_write(rd); 925 t0 = tcg_const_tl(I16); 926 gen_mul(dc, cpu_R[rd], cpu_R[ra], t0); 927 tcg_temp_free(t0); 928 break; 929 930 case 0x2d: /* l.mfspr */ 931 LOG_DIS("l.mfspr r%d, r%d, %d\n", rd, ra, K16); 932 check_r0_write(rd); 933 { 934 #if defined(CONFIG_USER_ONLY) 935 return; 936 #else 937 TCGv_i32 ti = tcg_const_i32(K16); 938 if (dc->mem_idx == MMU_USER_IDX) { 939 gen_illegal_exception(dc); 940 return; 941 } 942 gen_helper_mfspr(cpu_R[rd], cpu_env, cpu_R[rd], cpu_R[ra], ti); 943 tcg_temp_free_i32(ti); 944 #endif 945 } 946 break; 947 948 case 0x30: /* l.mtspr */ 949 LOG_DIS("l.mtspr r%d, r%d, %d\n", ra, rb, K5_11); 950 { 951 #if defined(CONFIG_USER_ONLY) 952 return; 953 #else 954 TCGv_i32 im = tcg_const_i32(K5_11); 955 if (dc->mem_idx == MMU_USER_IDX) { 956 gen_illegal_exception(dc); 957 return; 958 } 959 gen_helper_mtspr(cpu_env, cpu_R[ra], cpu_R[rb], im); 960 tcg_temp_free_i32(im); 961 #endif 962 } 963 break; 964 965 case 0x33: /* l.swa */ 966 LOG_DIS("l.swa r%d, r%d, %d\n", ra, rb, I5_11); 967 gen_swa(dc, rb, cpu_R[ra], I5_11); 968 break; 969 970 /* not used yet, open it when we need or64. */ 971 /*#ifdef TARGET_OPENRISC64 972 case 0x34: l.sd 973 LOG_DIS("l.sd r%d, r%d, %d\n", ra, rb, I5_11); 974 check_ob64s(dc); 975 mop = MO_TEQ; 976 goto do_store; 977 #endif*/ 978 979 case 0x35: /* l.sw */ 980 LOG_DIS("l.sw r%d, r%d, %d\n", ra, rb, I5_11); 981 mop = MO_TEUL; 982 goto do_store; 983 984 case 0x36: /* l.sb */ 985 LOG_DIS("l.sb r%d, r%d, %d\n", ra, rb, I5_11); 986 mop = MO_UB; 987 goto do_store; 988 989 case 0x37: /* l.sh */ 990 LOG_DIS("l.sh r%d, r%d, %d\n", ra, rb, I5_11); 991 mop = MO_TEUW; 992 goto do_store; 993 994 do_store: 995 { 996 TCGv t0 = tcg_temp_new(); 997 tcg_gen_addi_tl(t0, cpu_R[ra], I5_11); 998 tcg_gen_qemu_st_tl(cpu_R[rb], t0, dc->mem_idx, mop); 999 tcg_temp_free(t0); 1000 } 1001 break; 1002 1003 default: 1004 gen_illegal_exception(dc); 1005 break; 1006 } 1007 } 1008 1009 static void dec_mac(DisasContext *dc, uint32_t insn) 1010 { 1011 uint32_t op0; 1012 uint32_t ra, rb; 1013 op0 = extract32(insn, 0, 4); 1014 ra = extract32(insn, 16, 5); 1015 rb = extract32(insn, 11, 5); 1016 1017 switch (op0) { 1018 case 0x0001: /* l.mac */ 1019 LOG_DIS("l.mac r%d, r%d\n", ra, rb); 1020 gen_mac(dc, cpu_R[ra], cpu_R[rb]); 1021 break; 1022 1023 case 0x0002: /* l.msb */ 1024 LOG_DIS("l.msb r%d, r%d\n", ra, rb); 1025 gen_msb(dc, cpu_R[ra], cpu_R[rb]); 1026 break; 1027 1028 case 0x0003: /* l.macu */ 1029 LOG_DIS("l.macu r%d, r%d\n", ra, rb); 1030 gen_macu(dc, cpu_R[ra], cpu_R[rb]); 1031 break; 1032 1033 case 0x0004: /* l.msbu */ 1034 LOG_DIS("l.msbu r%d, r%d\n", ra, rb); 1035 gen_msbu(dc, cpu_R[ra], cpu_R[rb]); 1036 break; 1037 1038 default: 1039 gen_illegal_exception(dc); 1040 break; 1041 } 1042 } 1043 1044 static void dec_logic(DisasContext *dc, uint32_t insn) 1045 { 1046 uint32_t op0; 1047 uint32_t rd, ra, L6, S6; 1048 op0 = extract32(insn, 6, 2); 1049 rd = extract32(insn, 21, 5); 1050 ra = extract32(insn, 16, 5); 1051 L6 = extract32(insn, 0, 6); 1052 S6 = L6 & (TARGET_LONG_BITS - 1); 1053 1054 check_r0_write(rd); 1055 switch (op0) { 1056 case 0x00: /* l.slli */ 1057 LOG_DIS("l.slli r%d, r%d, %d\n", rd, ra, L6); 1058 tcg_gen_shli_tl(cpu_R[rd], cpu_R[ra], S6); 1059 break; 1060 1061 case 0x01: /* l.srli */ 1062 LOG_DIS("l.srli r%d, r%d, %d\n", rd, ra, L6); 1063 tcg_gen_shri_tl(cpu_R[rd], cpu_R[ra], S6); 1064 break; 1065 1066 case 0x02: /* l.srai */ 1067 LOG_DIS("l.srai r%d, r%d, %d\n", rd, ra, L6); 1068 tcg_gen_sari_tl(cpu_R[rd], cpu_R[ra], S6); 1069 break; 1070 1071 case 0x03: /* l.rori */ 1072 LOG_DIS("l.rori r%d, r%d, %d\n", rd, ra, L6); 1073 tcg_gen_rotri_tl(cpu_R[rd], cpu_R[ra], S6); 1074 break; 1075 1076 default: 1077 gen_illegal_exception(dc); 1078 break; 1079 } 1080 } 1081 1082 static void dec_M(DisasContext *dc, uint32_t insn) 1083 { 1084 uint32_t op0; 1085 uint32_t rd; 1086 uint32_t K16; 1087 op0 = extract32(insn, 16, 1); 1088 rd = extract32(insn, 21, 5); 1089 K16 = extract32(insn, 0, 16); 1090 1091 check_r0_write(rd); 1092 switch (op0) { 1093 case 0x0: /* l.movhi */ 1094 LOG_DIS("l.movhi r%d, %d\n", rd, K16); 1095 tcg_gen_movi_tl(cpu_R[rd], (K16 << 16)); 1096 break; 1097 1098 case 0x1: /* l.macrc */ 1099 LOG_DIS("l.macrc r%d\n", rd); 1100 tcg_gen_trunc_i64_tl(cpu_R[rd], cpu_mac); 1101 tcg_gen_movi_i64(cpu_mac, 0); 1102 break; 1103 1104 default: 1105 gen_illegal_exception(dc); 1106 break; 1107 } 1108 } 1109 1110 static void dec_comp(DisasContext *dc, uint32_t insn) 1111 { 1112 uint32_t op0; 1113 uint32_t ra, rb; 1114 1115 op0 = extract32(insn, 21, 5); 1116 ra = extract32(insn, 16, 5); 1117 rb = extract32(insn, 11, 5); 1118 1119 /* unsigned integers */ 1120 tcg_gen_ext32u_tl(cpu_R[ra], cpu_R[ra]); 1121 tcg_gen_ext32u_tl(cpu_R[rb], cpu_R[rb]); 1122 1123 switch (op0) { 1124 case 0x0: /* l.sfeq */ 1125 LOG_DIS("l.sfeq r%d, r%d\n", ra, rb); 1126 tcg_gen_setcond_tl(TCG_COND_EQ, cpu_sr_f, cpu_R[ra], cpu_R[rb]); 1127 break; 1128 1129 case 0x1: /* l.sfne */ 1130 LOG_DIS("l.sfne r%d, r%d\n", ra, rb); 1131 tcg_gen_setcond_tl(TCG_COND_NE, cpu_sr_f, cpu_R[ra], cpu_R[rb]); 1132 break; 1133 1134 case 0x2: /* l.sfgtu */ 1135 LOG_DIS("l.sfgtu r%d, r%d\n", ra, rb); 1136 tcg_gen_setcond_tl(TCG_COND_GTU, cpu_sr_f, cpu_R[ra], cpu_R[rb]); 1137 break; 1138 1139 case 0x3: /* l.sfgeu */ 1140 LOG_DIS("l.sfgeu r%d, r%d\n", ra, rb); 1141 tcg_gen_setcond_tl(TCG_COND_GEU, cpu_sr_f, cpu_R[ra], cpu_R[rb]); 1142 break; 1143 1144 case 0x4: /* l.sfltu */ 1145 LOG_DIS("l.sfltu r%d, r%d\n", ra, rb); 1146 tcg_gen_setcond_tl(TCG_COND_LTU, cpu_sr_f, cpu_R[ra], cpu_R[rb]); 1147 break; 1148 1149 case 0x5: /* l.sfleu */ 1150 LOG_DIS("l.sfleu r%d, r%d\n", ra, rb); 1151 tcg_gen_setcond_tl(TCG_COND_LEU, cpu_sr_f, cpu_R[ra], cpu_R[rb]); 1152 break; 1153 1154 case 0xa: /* l.sfgts */ 1155 LOG_DIS("l.sfgts r%d, r%d\n", ra, rb); 1156 tcg_gen_setcond_tl(TCG_COND_GT, cpu_sr_f, cpu_R[ra], cpu_R[rb]); 1157 break; 1158 1159 case 0xb: /* l.sfges */ 1160 LOG_DIS("l.sfges r%d, r%d\n", ra, rb); 1161 tcg_gen_setcond_tl(TCG_COND_GE, cpu_sr_f, cpu_R[ra], cpu_R[rb]); 1162 break; 1163 1164 case 0xc: /* l.sflts */ 1165 LOG_DIS("l.sflts r%d, r%d\n", ra, rb); 1166 tcg_gen_setcond_tl(TCG_COND_LT, cpu_sr_f, cpu_R[ra], cpu_R[rb]); 1167 break; 1168 1169 case 0xd: /* l.sfles */ 1170 LOG_DIS("l.sfles r%d, r%d\n", ra, rb); 1171 tcg_gen_setcond_tl(TCG_COND_LE, cpu_sr_f, cpu_R[ra], cpu_R[rb]); 1172 break; 1173 1174 default: 1175 gen_illegal_exception(dc); 1176 break; 1177 } 1178 } 1179 1180 static void dec_compi(DisasContext *dc, uint32_t insn) 1181 { 1182 uint32_t op0, ra; 1183 int32_t I16; 1184 1185 op0 = extract32(insn, 21, 5); 1186 ra = extract32(insn, 16, 5); 1187 I16 = sextract32(insn, 0, 16); 1188 1189 switch (op0) { 1190 case 0x0: /* l.sfeqi */ 1191 LOG_DIS("l.sfeqi r%d, %d\n", ra, I16); 1192 tcg_gen_setcondi_tl(TCG_COND_EQ, cpu_sr_f, cpu_R[ra], I16); 1193 break; 1194 1195 case 0x1: /* l.sfnei */ 1196 LOG_DIS("l.sfnei r%d, %d\n", ra, I16); 1197 tcg_gen_setcondi_tl(TCG_COND_NE, cpu_sr_f, cpu_R[ra], I16); 1198 break; 1199 1200 case 0x2: /* l.sfgtui */ 1201 LOG_DIS("l.sfgtui r%d, %d\n", ra, I16); 1202 tcg_gen_setcondi_tl(TCG_COND_GTU, cpu_sr_f, cpu_R[ra], I16); 1203 break; 1204 1205 case 0x3: /* l.sfgeui */ 1206 LOG_DIS("l.sfgeui r%d, %d\n", ra, I16); 1207 tcg_gen_setcondi_tl(TCG_COND_GEU, cpu_sr_f, cpu_R[ra], I16); 1208 break; 1209 1210 case 0x4: /* l.sfltui */ 1211 LOG_DIS("l.sfltui r%d, %d\n", ra, I16); 1212 tcg_gen_setcondi_tl(TCG_COND_LTU, cpu_sr_f, cpu_R[ra], I16); 1213 break; 1214 1215 case 0x5: /* l.sfleui */ 1216 LOG_DIS("l.sfleui r%d, %d\n", ra, I16); 1217 tcg_gen_setcondi_tl(TCG_COND_LEU, cpu_sr_f, cpu_R[ra], I16); 1218 break; 1219 1220 case 0xa: /* l.sfgtsi */ 1221 LOG_DIS("l.sfgtsi r%d, %d\n", ra, I16); 1222 tcg_gen_setcondi_tl(TCG_COND_GT, cpu_sr_f, cpu_R[ra], I16); 1223 break; 1224 1225 case 0xb: /* l.sfgesi */ 1226 LOG_DIS("l.sfgesi r%d, %d\n", ra, I16); 1227 tcg_gen_setcondi_tl(TCG_COND_GE, cpu_sr_f, cpu_R[ra], I16); 1228 break; 1229 1230 case 0xc: /* l.sfltsi */ 1231 LOG_DIS("l.sfltsi r%d, %d\n", ra, I16); 1232 tcg_gen_setcondi_tl(TCG_COND_LT, cpu_sr_f, cpu_R[ra], I16); 1233 break; 1234 1235 case 0xd: /* l.sflesi */ 1236 LOG_DIS("l.sflesi r%d, %d\n", ra, I16); 1237 tcg_gen_setcondi_tl(TCG_COND_LE, cpu_sr_f, cpu_R[ra], I16); 1238 break; 1239 1240 default: 1241 gen_illegal_exception(dc); 1242 break; 1243 } 1244 } 1245 1246 static void dec_sys(DisasContext *dc, uint32_t insn) 1247 { 1248 uint32_t op0; 1249 uint32_t K16; 1250 1251 op0 = extract32(insn, 16, 10); 1252 K16 = extract32(insn, 0, 16); 1253 1254 switch (op0) { 1255 case 0x000: /* l.sys */ 1256 LOG_DIS("l.sys %d\n", K16); 1257 tcg_gen_movi_tl(cpu_pc, dc->pc); 1258 gen_exception(dc, EXCP_SYSCALL); 1259 dc->is_jmp = DISAS_UPDATE; 1260 break; 1261 1262 case 0x100: /* l.trap */ 1263 LOG_DIS("l.trap %d\n", K16); 1264 tcg_gen_movi_tl(cpu_pc, dc->pc); 1265 gen_exception(dc, EXCP_TRAP); 1266 break; 1267 1268 case 0x300: /* l.csync */ 1269 LOG_DIS("l.csync\n"); 1270 break; 1271 1272 case 0x200: /* l.msync */ 1273 LOG_DIS("l.msync\n"); 1274 tcg_gen_mb(TCG_MO_ALL); 1275 break; 1276 1277 case 0x270: /* l.psync */ 1278 LOG_DIS("l.psync\n"); 1279 break; 1280 1281 default: 1282 gen_illegal_exception(dc); 1283 break; 1284 } 1285 } 1286 1287 static void dec_float(DisasContext *dc, uint32_t insn) 1288 { 1289 uint32_t op0; 1290 uint32_t ra, rb, rd; 1291 op0 = extract32(insn, 0, 8); 1292 ra = extract32(insn, 16, 5); 1293 rb = extract32(insn, 11, 5); 1294 rd = extract32(insn, 21, 5); 1295 1296 switch (op0) { 1297 case 0x00: /* lf.add.s */ 1298 LOG_DIS("lf.add.s r%d, r%d, r%d\n", rd, ra, rb); 1299 check_r0_write(rd); 1300 gen_helper_float_add_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); 1301 break; 1302 1303 case 0x01: /* lf.sub.s */ 1304 LOG_DIS("lf.sub.s r%d, r%d, r%d\n", rd, ra, rb); 1305 check_r0_write(rd); 1306 gen_helper_float_sub_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); 1307 break; 1308 1309 case 0x02: /* lf.mul.s */ 1310 LOG_DIS("lf.mul.s r%d, r%d, r%d\n", rd, ra, rb); 1311 check_r0_write(rd); 1312 gen_helper_float_mul_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); 1313 break; 1314 1315 case 0x03: /* lf.div.s */ 1316 LOG_DIS("lf.div.s r%d, r%d, r%d\n", rd, ra, rb); 1317 check_r0_write(rd); 1318 gen_helper_float_div_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); 1319 break; 1320 1321 case 0x04: /* lf.itof.s */ 1322 LOG_DIS("lf.itof r%d, r%d\n", rd, ra); 1323 check_r0_write(rd); 1324 gen_helper_itofs(cpu_R[rd], cpu_env, cpu_R[ra]); 1325 break; 1326 1327 case 0x05: /* lf.ftoi.s */ 1328 LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra); 1329 check_r0_write(rd); 1330 gen_helper_ftois(cpu_R[rd], cpu_env, cpu_R[ra]); 1331 break; 1332 1333 case 0x06: /* lf.rem.s */ 1334 LOG_DIS("lf.rem.s r%d, r%d, r%d\n", rd, ra, rb); 1335 check_r0_write(rd); 1336 gen_helper_float_rem_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); 1337 break; 1338 1339 case 0x07: /* lf.madd.s */ 1340 LOG_DIS("lf.madd.s r%d, r%d, r%d\n", rd, ra, rb); 1341 check_r0_write(rd); 1342 gen_helper_float_madd_s(cpu_R[rd], cpu_env, cpu_R[rd], 1343 cpu_R[ra], cpu_R[rb]); 1344 break; 1345 1346 case 0x08: /* lf.sfeq.s */ 1347 LOG_DIS("lf.sfeq.s r%d, r%d\n", ra, rb); 1348 gen_helper_float_eq_s(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); 1349 break; 1350 1351 case 0x09: /* lf.sfne.s */ 1352 LOG_DIS("lf.sfne.s r%d, r%d\n", ra, rb); 1353 gen_helper_float_ne_s(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); 1354 break; 1355 1356 case 0x0a: /* lf.sfgt.s */ 1357 LOG_DIS("lf.sfgt.s r%d, r%d\n", ra, rb); 1358 gen_helper_float_gt_s(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); 1359 break; 1360 1361 case 0x0b: /* lf.sfge.s */ 1362 LOG_DIS("lf.sfge.s r%d, r%d\n", ra, rb); 1363 gen_helper_float_ge_s(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); 1364 break; 1365 1366 case 0x0c: /* lf.sflt.s */ 1367 LOG_DIS("lf.sflt.s r%d, r%d\n", ra, rb); 1368 gen_helper_float_lt_s(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); 1369 break; 1370 1371 case 0x0d: /* lf.sfle.s */ 1372 LOG_DIS("lf.sfle.s r%d, r%d\n", ra, rb); 1373 gen_helper_float_le_s(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); 1374 break; 1375 1376 /* not used yet, open it when we need or64. */ 1377 /*#ifdef TARGET_OPENRISC64 1378 case 0x10: lf.add.d 1379 LOG_DIS("lf.add.d r%d, r%d, r%d\n", rd, ra, rb); 1380 check_of64s(dc); 1381 check_r0_write(rd); 1382 gen_helper_float_add_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); 1383 break; 1384 1385 case 0x11: lf.sub.d 1386 LOG_DIS("lf.sub.d r%d, r%d, r%d\n", rd, ra, rb); 1387 check_of64s(dc); 1388 check_r0_write(rd); 1389 gen_helper_float_sub_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); 1390 break; 1391 1392 case 0x12: lf.mul.d 1393 LOG_DIS("lf.mul.d r%d, r%d, r%d\n", rd, ra, rb); 1394 check_of64s(dc); 1395 check_r0_write(rd); 1396 gen_helper_float_mul_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); 1397 break; 1398 1399 case 0x13: lf.div.d 1400 LOG_DIS("lf.div.d r%d, r%d, r%d\n", rd, ra, rb); 1401 check_of64s(dc); 1402 check_r0_write(rd); 1403 gen_helper_float_div_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); 1404 break; 1405 1406 case 0x14: lf.itof.d 1407 LOG_DIS("lf.itof r%d, r%d\n", rd, ra); 1408 check_of64s(dc); 1409 check_r0_write(rd); 1410 gen_helper_itofd(cpu_R[rd], cpu_env, cpu_R[ra]); 1411 break; 1412 1413 case 0x15: lf.ftoi.d 1414 LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra); 1415 check_of64s(dc); 1416 check_r0_write(rd); 1417 gen_helper_ftoid(cpu_R[rd], cpu_env, cpu_R[ra]); 1418 break; 1419 1420 case 0x16: lf.rem.d 1421 LOG_DIS("lf.rem.d r%d, r%d, r%d\n", rd, ra, rb); 1422 check_of64s(dc); 1423 check_r0_write(rd); 1424 gen_helper_float_rem_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); 1425 break; 1426 1427 case 0x17: lf.madd.d 1428 LOG_DIS("lf.madd.d r%d, r%d, r%d\n", rd, ra, rb); 1429 check_of64s(dc); 1430 check_r0_write(rd); 1431 gen_helper_float_madd_d(cpu_R[rd], cpu_env, cpu_R[rd], 1432 cpu_R[ra], cpu_R[rb]); 1433 break; 1434 1435 case 0x18: lf.sfeq.d 1436 LOG_DIS("lf.sfeq.d r%d, r%d\n", ra, rb); 1437 check_of64s(dc); 1438 gen_helper_float_eq_d(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); 1439 break; 1440 1441 case 0x1a: lf.sfgt.d 1442 LOG_DIS("lf.sfgt.d r%d, r%d\n", ra, rb); 1443 check_of64s(dc); 1444 gen_helper_float_gt_d(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); 1445 break; 1446 1447 case 0x1b: lf.sfge.d 1448 LOG_DIS("lf.sfge.d r%d, r%d\n", ra, rb); 1449 check_of64s(dc); 1450 gen_helper_float_ge_d(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); 1451 break; 1452 1453 case 0x19: lf.sfne.d 1454 LOG_DIS("lf.sfne.d r%d, r%d\n", ra, rb); 1455 check_of64s(dc); 1456 gen_helper_float_ne_d(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); 1457 break; 1458 1459 case 0x1c: lf.sflt.d 1460 LOG_DIS("lf.sflt.d r%d, r%d\n", ra, rb); 1461 check_of64s(dc); 1462 gen_helper_float_lt_d(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); 1463 break; 1464 1465 case 0x1d: lf.sfle.d 1466 LOG_DIS("lf.sfle.d r%d, r%d\n", ra, rb); 1467 check_of64s(dc); 1468 gen_helper_float_le_d(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); 1469 break; 1470 #endif*/ 1471 1472 default: 1473 gen_illegal_exception(dc); 1474 break; 1475 } 1476 } 1477 1478 static void disas_openrisc_insn(DisasContext *dc, OpenRISCCPU *cpu) 1479 { 1480 uint32_t op0; 1481 uint32_t insn; 1482 insn = cpu_ldl_code(&cpu->env, dc->pc); 1483 op0 = extract32(insn, 26, 6); 1484 1485 switch (op0) { 1486 case 0x06: 1487 dec_M(dc, insn); 1488 break; 1489 1490 case 0x08: 1491 dec_sys(dc, insn); 1492 break; 1493 1494 case 0x2e: 1495 dec_logic(dc, insn); 1496 break; 1497 1498 case 0x2f: 1499 dec_compi(dc, insn); 1500 break; 1501 1502 case 0x31: 1503 dec_mac(dc, insn); 1504 break; 1505 1506 case 0x32: 1507 dec_float(dc, insn); 1508 break; 1509 1510 case 0x38: 1511 dec_calc(dc, insn); 1512 break; 1513 1514 case 0x39: 1515 dec_comp(dc, insn); 1516 break; 1517 1518 default: 1519 dec_misc(dc, insn); 1520 break; 1521 } 1522 } 1523 1524 void gen_intermediate_code(CPUState *cs, struct TranslationBlock *tb) 1525 { 1526 CPUOpenRISCState *env = cs->env_ptr; 1527 OpenRISCCPU *cpu = openrisc_env_get_cpu(env); 1528 struct DisasContext ctx, *dc = &ctx; 1529 uint32_t pc_start; 1530 uint32_t next_page_start; 1531 int num_insns; 1532 int max_insns; 1533 1534 pc_start = tb->pc; 1535 dc->tb = tb; 1536 1537 dc->is_jmp = DISAS_NEXT; 1538 dc->pc = pc_start; 1539 dc->mem_idx = cpu_mmu_index(&cpu->env, false); 1540 dc->tb_flags = tb->flags; 1541 dc->delayed_branch = (dc->tb_flags & TB_FLAGS_DFLAG) != 0; 1542 dc->singlestep_enabled = cs->singlestep_enabled; 1543 1544 next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; 1545 num_insns = 0; 1546 max_insns = tb_cflags(tb) & CF_COUNT_MASK; 1547 1548 if (max_insns == 0) { 1549 max_insns = CF_COUNT_MASK; 1550 } 1551 if (max_insns > TCG_MAX_INSNS) { 1552 max_insns = TCG_MAX_INSNS; 1553 } 1554 1555 if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM) 1556 && qemu_log_in_addr_range(pc_start)) { 1557 qemu_log_lock(); 1558 qemu_log("----------------\n"); 1559 qemu_log("IN: %s\n", lookup_symbol(pc_start)); 1560 } 1561 1562 gen_tb_start(tb); 1563 1564 /* Allow the TCG optimizer to see that R0 == 0, 1565 when it's true, which is the common case. */ 1566 if (dc->tb_flags & TB_FLAGS_R0_0) { 1567 cpu_R[0] = tcg_const_tl(0); 1568 } else { 1569 cpu_R[0] = cpu_R0; 1570 } 1571 1572 do { 1573 tcg_gen_insn_start(dc->pc, (dc->delayed_branch ? 1 : 0) 1574 | (num_insns ? 2 : 0)); 1575 num_insns++; 1576 1577 if (unlikely(cpu_breakpoint_test(cs, dc->pc, BP_ANY))) { 1578 tcg_gen_movi_tl(cpu_pc, dc->pc); 1579 gen_exception(dc, EXCP_DEBUG); 1580 dc->is_jmp = DISAS_UPDATE; 1581 /* The address covered by the breakpoint must be included in 1582 [tb->pc, tb->pc + tb->size) in order to for it to be 1583 properly cleared -- thus we increment the PC here so that 1584 the logic setting tb->size below does the right thing. */ 1585 dc->pc += 4; 1586 break; 1587 } 1588 1589 if (num_insns == max_insns && (tb_cflags(tb) & CF_LAST_IO)) { 1590 gen_io_start(); 1591 } 1592 disas_openrisc_insn(dc, cpu); 1593 dc->pc = dc->pc + 4; 1594 1595 /* delay slot */ 1596 if (dc->delayed_branch) { 1597 dc->delayed_branch--; 1598 if (!dc->delayed_branch) { 1599 tcg_gen_mov_tl(cpu_pc, jmp_pc); 1600 tcg_gen_discard_tl(jmp_pc); 1601 dc->is_jmp = DISAS_UPDATE; 1602 break; 1603 } 1604 } 1605 } while (!dc->is_jmp 1606 && !tcg_op_buf_full() 1607 && !cs->singlestep_enabled 1608 && !singlestep 1609 && (dc->pc < next_page_start) 1610 && num_insns < max_insns); 1611 1612 if (tb_cflags(tb) & CF_LAST_IO) { 1613 gen_io_end(); 1614 } 1615 1616 if ((dc->tb_flags & TB_FLAGS_DFLAG ? 1 : 0) != (dc->delayed_branch != 0)) { 1617 tcg_gen_movi_i32(cpu_dflag, dc->delayed_branch != 0); 1618 } 1619 1620 tcg_gen_movi_tl(cpu_ppc, dc->pc - 4); 1621 if (dc->is_jmp == DISAS_NEXT) { 1622 dc->is_jmp = DISAS_UPDATE; 1623 tcg_gen_movi_tl(cpu_pc, dc->pc); 1624 } 1625 if (unlikely(cs->singlestep_enabled)) { 1626 gen_exception(dc, EXCP_DEBUG); 1627 } else { 1628 switch (dc->is_jmp) { 1629 case DISAS_NEXT: 1630 gen_goto_tb(dc, 0, dc->pc); 1631 break; 1632 default: 1633 case DISAS_JUMP: 1634 break; 1635 case DISAS_UPDATE: 1636 /* indicate that the hash table must be used 1637 to find the next TB */ 1638 tcg_gen_exit_tb(0); 1639 break; 1640 case DISAS_TB_JUMP: 1641 /* nothing more to generate */ 1642 break; 1643 } 1644 } 1645 1646 gen_tb_end(tb, num_insns); 1647 1648 tb->size = dc->pc - pc_start; 1649 tb->icount = num_insns; 1650 1651 if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM) 1652 && qemu_log_in_addr_range(pc_start)) { 1653 log_target_disas(cs, pc_start, tb->size, 0); 1654 qemu_log("\n"); 1655 qemu_log_unlock(); 1656 } 1657 } 1658 1659 void openrisc_cpu_dump_state(CPUState *cs, FILE *f, 1660 fprintf_function cpu_fprintf, 1661 int flags) 1662 { 1663 OpenRISCCPU *cpu = OPENRISC_CPU(cs); 1664 CPUOpenRISCState *env = &cpu->env; 1665 int i; 1666 1667 cpu_fprintf(f, "PC=%08x\n", env->pc); 1668 for (i = 0; i < 32; ++i) { 1669 cpu_fprintf(f, "R%02d=%08x%c", i, cpu_get_gpr(env, i), 1670 (i % 4) == 3 ? '\n' : ' '); 1671 } 1672 } 1673 1674 void restore_state_to_opc(CPUOpenRISCState *env, TranslationBlock *tb, 1675 target_ulong *data) 1676 { 1677 env->pc = data[0]; 1678 env->dflag = data[1] & 1; 1679 if (data[1] & 2) { 1680 env->ppc = env->pc - 4; 1681 } 1682 } 1683