1 /* 2 * Xtensa ISA: 3 * http://www.tensilica.com/products/literature-docs/documentation/xtensa-isa-databook.htm 4 * 5 * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are met: 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * * Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * * Neither the name of the Open Source and Linux Lab nor the 16 * names of its contributors may be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "qemu/osdep.h" 32 33 #include "cpu.h" 34 #include "exec/exec-all.h" 35 #include "disas/disas.h" 36 #include "tcg-op.h" 37 #include "qemu/log.h" 38 #include "sysemu/sysemu.h" 39 #include "exec/cpu_ldst.h" 40 #include "exec/semihost.h" 41 42 #include "exec/helper-proto.h" 43 #include "exec/helper-gen.h" 44 45 #include "trace-tcg.h" 46 #include "exec/log.h" 47 48 49 typedef struct DisasContext { 50 const XtensaConfig *config; 51 TranslationBlock *tb; 52 uint32_t pc; 53 uint32_t next_pc; 54 int cring; 55 int ring; 56 uint32_t lbeg; 57 uint32_t lend; 58 TCGv_i32 litbase; 59 int is_jmp; 60 int singlestep_enabled; 61 62 bool sar_5bit; 63 bool sar_m32_5bit; 64 bool sar_m32_allocated; 65 TCGv_i32 sar_m32; 66 67 unsigned window; 68 69 bool debug; 70 bool icount; 71 TCGv_i32 next_icount; 72 73 unsigned cpenable; 74 } DisasContext; 75 76 static TCGv_env cpu_env; 77 static TCGv_i32 cpu_pc; 78 static TCGv_i32 cpu_R[16]; 79 static TCGv_i32 cpu_FR[16]; 80 static TCGv_i32 cpu_SR[256]; 81 static TCGv_i32 cpu_UR[256]; 82 83 #include "exec/gen-icount.h" 84 85 typedef struct XtensaReg { 86 const char *name; 87 uint64_t opt_bits; 88 enum { 89 SR_R = 1, 90 SR_W = 2, 91 SR_X = 4, 92 SR_RW = 3, 93 SR_RWX = 7, 94 } access; 95 } XtensaReg; 96 97 #define XTENSA_REG_ACCESS(regname, opt, acc) { \ 98 .name = (regname), \ 99 .opt_bits = XTENSA_OPTION_BIT(opt), \ 100 .access = (acc), \ 101 } 102 103 #define XTENSA_REG(regname, opt) XTENSA_REG_ACCESS(regname, opt, SR_RWX) 104 105 #define XTENSA_REG_BITS_ACCESS(regname, opt, acc) { \ 106 .name = (regname), \ 107 .opt_bits = (opt), \ 108 .access = (acc), \ 109 } 110 111 #define XTENSA_REG_BITS(regname, opt) \ 112 XTENSA_REG_BITS_ACCESS(regname, opt, SR_RWX) 113 114 static const XtensaReg sregnames[256] = { 115 [LBEG] = XTENSA_REG("LBEG", XTENSA_OPTION_LOOP), 116 [LEND] = XTENSA_REG("LEND", XTENSA_OPTION_LOOP), 117 [LCOUNT] = XTENSA_REG("LCOUNT", XTENSA_OPTION_LOOP), 118 [SAR] = XTENSA_REG_BITS("SAR", XTENSA_OPTION_ALL), 119 [BR] = XTENSA_REG("BR", XTENSA_OPTION_BOOLEAN), 120 [LITBASE] = XTENSA_REG("LITBASE", XTENSA_OPTION_EXTENDED_L32R), 121 [SCOMPARE1] = XTENSA_REG("SCOMPARE1", XTENSA_OPTION_CONDITIONAL_STORE), 122 [ACCLO] = XTENSA_REG("ACCLO", XTENSA_OPTION_MAC16), 123 [ACCHI] = XTENSA_REG("ACCHI", XTENSA_OPTION_MAC16), 124 [MR] = XTENSA_REG("MR0", XTENSA_OPTION_MAC16), 125 [MR + 1] = XTENSA_REG("MR1", XTENSA_OPTION_MAC16), 126 [MR + 2] = XTENSA_REG("MR2", XTENSA_OPTION_MAC16), 127 [MR + 3] = XTENSA_REG("MR3", XTENSA_OPTION_MAC16), 128 [WINDOW_BASE] = XTENSA_REG("WINDOW_BASE", XTENSA_OPTION_WINDOWED_REGISTER), 129 [WINDOW_START] = XTENSA_REG("WINDOW_START", 130 XTENSA_OPTION_WINDOWED_REGISTER), 131 [PTEVADDR] = XTENSA_REG("PTEVADDR", XTENSA_OPTION_MMU), 132 [RASID] = XTENSA_REG("RASID", XTENSA_OPTION_MMU), 133 [ITLBCFG] = XTENSA_REG("ITLBCFG", XTENSA_OPTION_MMU), 134 [DTLBCFG] = XTENSA_REG("DTLBCFG", XTENSA_OPTION_MMU), 135 [IBREAKENABLE] = XTENSA_REG("IBREAKENABLE", XTENSA_OPTION_DEBUG), 136 [MEMCTL] = XTENSA_REG_BITS("MEMCTL", XTENSA_OPTION_ALL), 137 [CACHEATTR] = XTENSA_REG("CACHEATTR", XTENSA_OPTION_CACHEATTR), 138 [ATOMCTL] = XTENSA_REG("ATOMCTL", XTENSA_OPTION_ATOMCTL), 139 [IBREAKA] = XTENSA_REG("IBREAKA0", XTENSA_OPTION_DEBUG), 140 [IBREAKA + 1] = XTENSA_REG("IBREAKA1", XTENSA_OPTION_DEBUG), 141 [DBREAKA] = XTENSA_REG("DBREAKA0", XTENSA_OPTION_DEBUG), 142 [DBREAKA + 1] = XTENSA_REG("DBREAKA1", XTENSA_OPTION_DEBUG), 143 [DBREAKC] = XTENSA_REG("DBREAKC0", XTENSA_OPTION_DEBUG), 144 [DBREAKC + 1] = XTENSA_REG("DBREAKC1", XTENSA_OPTION_DEBUG), 145 [CONFIGID0] = XTENSA_REG_BITS_ACCESS("CONFIGID0", XTENSA_OPTION_ALL, SR_R), 146 [EPC1] = XTENSA_REG("EPC1", XTENSA_OPTION_EXCEPTION), 147 [EPC1 + 1] = XTENSA_REG("EPC2", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 148 [EPC1 + 2] = XTENSA_REG("EPC3", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 149 [EPC1 + 3] = XTENSA_REG("EPC4", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 150 [EPC1 + 4] = XTENSA_REG("EPC5", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 151 [EPC1 + 5] = XTENSA_REG("EPC6", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 152 [EPC1 + 6] = XTENSA_REG("EPC7", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 153 [DEPC] = XTENSA_REG("DEPC", XTENSA_OPTION_EXCEPTION), 154 [EPS2] = XTENSA_REG("EPS2", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 155 [EPS2 + 1] = XTENSA_REG("EPS3", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 156 [EPS2 + 2] = XTENSA_REG("EPS4", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 157 [EPS2 + 3] = XTENSA_REG("EPS5", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 158 [EPS2 + 4] = XTENSA_REG("EPS6", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 159 [EPS2 + 5] = XTENSA_REG("EPS7", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 160 [CONFIGID1] = XTENSA_REG_BITS_ACCESS("CONFIGID1", XTENSA_OPTION_ALL, SR_R), 161 [EXCSAVE1] = XTENSA_REG("EXCSAVE1", XTENSA_OPTION_EXCEPTION), 162 [EXCSAVE1 + 1] = XTENSA_REG("EXCSAVE2", 163 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 164 [EXCSAVE1 + 2] = XTENSA_REG("EXCSAVE3", 165 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 166 [EXCSAVE1 + 3] = XTENSA_REG("EXCSAVE4", 167 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 168 [EXCSAVE1 + 4] = XTENSA_REG("EXCSAVE5", 169 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 170 [EXCSAVE1 + 5] = XTENSA_REG("EXCSAVE6", 171 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 172 [EXCSAVE1 + 6] = XTENSA_REG("EXCSAVE7", 173 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), 174 [CPENABLE] = XTENSA_REG("CPENABLE", XTENSA_OPTION_COPROCESSOR), 175 [INTSET] = XTENSA_REG_ACCESS("INTSET", XTENSA_OPTION_INTERRUPT, SR_RW), 176 [INTCLEAR] = XTENSA_REG_ACCESS("INTCLEAR", XTENSA_OPTION_INTERRUPT, SR_W), 177 [INTENABLE] = XTENSA_REG("INTENABLE", XTENSA_OPTION_INTERRUPT), 178 [PS] = XTENSA_REG_BITS("PS", XTENSA_OPTION_ALL), 179 [VECBASE] = XTENSA_REG("VECBASE", XTENSA_OPTION_RELOCATABLE_VECTOR), 180 [EXCCAUSE] = XTENSA_REG("EXCCAUSE", XTENSA_OPTION_EXCEPTION), 181 [DEBUGCAUSE] = XTENSA_REG_ACCESS("DEBUGCAUSE", XTENSA_OPTION_DEBUG, SR_R), 182 [CCOUNT] = XTENSA_REG("CCOUNT", XTENSA_OPTION_TIMER_INTERRUPT), 183 [PRID] = XTENSA_REG_ACCESS("PRID", XTENSA_OPTION_PROCESSOR_ID, SR_R), 184 [ICOUNT] = XTENSA_REG("ICOUNT", XTENSA_OPTION_DEBUG), 185 [ICOUNTLEVEL] = XTENSA_REG("ICOUNTLEVEL", XTENSA_OPTION_DEBUG), 186 [EXCVADDR] = XTENSA_REG("EXCVADDR", XTENSA_OPTION_EXCEPTION), 187 [CCOMPARE] = XTENSA_REG("CCOMPARE0", XTENSA_OPTION_TIMER_INTERRUPT), 188 [CCOMPARE + 1] = XTENSA_REG("CCOMPARE1", 189 XTENSA_OPTION_TIMER_INTERRUPT), 190 [CCOMPARE + 2] = XTENSA_REG("CCOMPARE2", 191 XTENSA_OPTION_TIMER_INTERRUPT), 192 [MISC] = XTENSA_REG("MISC0", XTENSA_OPTION_MISC_SR), 193 [MISC + 1] = XTENSA_REG("MISC1", XTENSA_OPTION_MISC_SR), 194 [MISC + 2] = XTENSA_REG("MISC2", XTENSA_OPTION_MISC_SR), 195 [MISC + 3] = XTENSA_REG("MISC3", XTENSA_OPTION_MISC_SR), 196 }; 197 198 static const XtensaReg uregnames[256] = { 199 [THREADPTR] = XTENSA_REG("THREADPTR", XTENSA_OPTION_THREAD_POINTER), 200 [FCR] = XTENSA_REG("FCR", XTENSA_OPTION_FP_COPROCESSOR), 201 [FSR] = XTENSA_REG("FSR", XTENSA_OPTION_FP_COPROCESSOR), 202 }; 203 204 void xtensa_translate_init(void) 205 { 206 static const char * const regnames[] = { 207 "ar0", "ar1", "ar2", "ar3", 208 "ar4", "ar5", "ar6", "ar7", 209 "ar8", "ar9", "ar10", "ar11", 210 "ar12", "ar13", "ar14", "ar15", 211 }; 212 static const char * const fregnames[] = { 213 "f0", "f1", "f2", "f3", 214 "f4", "f5", "f6", "f7", 215 "f8", "f9", "f10", "f11", 216 "f12", "f13", "f14", "f15", 217 }; 218 int i; 219 220 cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env"); 221 tcg_ctx.tcg_env = cpu_env; 222 cpu_pc = tcg_global_mem_new_i32(cpu_env, 223 offsetof(CPUXtensaState, pc), "pc"); 224 225 for (i = 0; i < 16; i++) { 226 cpu_R[i] = tcg_global_mem_new_i32(cpu_env, 227 offsetof(CPUXtensaState, regs[i]), 228 regnames[i]); 229 } 230 231 for (i = 0; i < 16; i++) { 232 cpu_FR[i] = tcg_global_mem_new_i32(cpu_env, 233 offsetof(CPUXtensaState, fregs[i].f32[FP_F32_LOW]), 234 fregnames[i]); 235 } 236 237 for (i = 0; i < 256; ++i) { 238 if (sregnames[i].name) { 239 cpu_SR[i] = tcg_global_mem_new_i32(cpu_env, 240 offsetof(CPUXtensaState, sregs[i]), 241 sregnames[i].name); 242 } 243 } 244 245 for (i = 0; i < 256; ++i) { 246 if (uregnames[i].name) { 247 cpu_UR[i] = tcg_global_mem_new_i32(cpu_env, 248 offsetof(CPUXtensaState, uregs[i]), 249 uregnames[i].name); 250 } 251 } 252 } 253 254 static inline bool option_bits_enabled(DisasContext *dc, uint64_t opt) 255 { 256 return xtensa_option_bits_enabled(dc->config, opt); 257 } 258 259 static inline bool option_enabled(DisasContext *dc, int opt) 260 { 261 return xtensa_option_enabled(dc->config, opt); 262 } 263 264 static void init_litbase(DisasContext *dc) 265 { 266 if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) { 267 dc->litbase = tcg_temp_local_new_i32(); 268 tcg_gen_andi_i32(dc->litbase, cpu_SR[LITBASE], 0xfffff000); 269 } 270 } 271 272 static void reset_litbase(DisasContext *dc) 273 { 274 if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) { 275 tcg_temp_free(dc->litbase); 276 } 277 } 278 279 static void init_sar_tracker(DisasContext *dc) 280 { 281 dc->sar_5bit = false; 282 dc->sar_m32_5bit = false; 283 dc->sar_m32_allocated = false; 284 } 285 286 static void reset_sar_tracker(DisasContext *dc) 287 { 288 if (dc->sar_m32_allocated) { 289 tcg_temp_free(dc->sar_m32); 290 } 291 } 292 293 static void gen_right_shift_sar(DisasContext *dc, TCGv_i32 sa) 294 { 295 tcg_gen_andi_i32(cpu_SR[SAR], sa, 0x1f); 296 if (dc->sar_m32_5bit) { 297 tcg_gen_discard_i32(dc->sar_m32); 298 } 299 dc->sar_5bit = true; 300 dc->sar_m32_5bit = false; 301 } 302 303 static void gen_left_shift_sar(DisasContext *dc, TCGv_i32 sa) 304 { 305 TCGv_i32 tmp = tcg_const_i32(32); 306 if (!dc->sar_m32_allocated) { 307 dc->sar_m32 = tcg_temp_local_new_i32(); 308 dc->sar_m32_allocated = true; 309 } 310 tcg_gen_andi_i32(dc->sar_m32, sa, 0x1f); 311 tcg_gen_sub_i32(cpu_SR[SAR], tmp, dc->sar_m32); 312 dc->sar_5bit = false; 313 dc->sar_m32_5bit = true; 314 tcg_temp_free(tmp); 315 } 316 317 static void gen_exception(DisasContext *dc, int excp) 318 { 319 TCGv_i32 tmp = tcg_const_i32(excp); 320 gen_helper_exception(cpu_env, tmp); 321 tcg_temp_free(tmp); 322 } 323 324 static void gen_exception_cause(DisasContext *dc, uint32_t cause) 325 { 326 TCGv_i32 tpc = tcg_const_i32(dc->pc); 327 TCGv_i32 tcause = tcg_const_i32(cause); 328 gen_helper_exception_cause(cpu_env, tpc, tcause); 329 tcg_temp_free(tpc); 330 tcg_temp_free(tcause); 331 if (cause == ILLEGAL_INSTRUCTION_CAUSE || 332 cause == SYSCALL_CAUSE) { 333 dc->is_jmp = DISAS_UPDATE; 334 } 335 } 336 337 static void gen_exception_cause_vaddr(DisasContext *dc, uint32_t cause, 338 TCGv_i32 vaddr) 339 { 340 TCGv_i32 tpc = tcg_const_i32(dc->pc); 341 TCGv_i32 tcause = tcg_const_i32(cause); 342 gen_helper_exception_cause_vaddr(cpu_env, tpc, tcause, vaddr); 343 tcg_temp_free(tpc); 344 tcg_temp_free(tcause); 345 } 346 347 static void gen_debug_exception(DisasContext *dc, uint32_t cause) 348 { 349 TCGv_i32 tpc = tcg_const_i32(dc->pc); 350 TCGv_i32 tcause = tcg_const_i32(cause); 351 gen_helper_debug_exception(cpu_env, tpc, tcause); 352 tcg_temp_free(tpc); 353 tcg_temp_free(tcause); 354 if (cause & (DEBUGCAUSE_IB | DEBUGCAUSE_BI | DEBUGCAUSE_BN)) { 355 dc->is_jmp = DISAS_UPDATE; 356 } 357 } 358 359 static bool gen_check_privilege(DisasContext *dc) 360 { 361 if (dc->cring) { 362 gen_exception_cause(dc, PRIVILEGED_CAUSE); 363 dc->is_jmp = DISAS_UPDATE; 364 return false; 365 } 366 return true; 367 } 368 369 static bool gen_check_cpenable(DisasContext *dc, unsigned cp) 370 { 371 if (option_enabled(dc, XTENSA_OPTION_COPROCESSOR) && 372 !(dc->cpenable & (1 << cp))) { 373 gen_exception_cause(dc, COPROCESSOR0_DISABLED + cp); 374 dc->is_jmp = DISAS_UPDATE; 375 return false; 376 } 377 return true; 378 } 379 380 static void gen_jump_slot(DisasContext *dc, TCGv dest, int slot) 381 { 382 tcg_gen_mov_i32(cpu_pc, dest); 383 if (dc->icount) { 384 tcg_gen_mov_i32(cpu_SR[ICOUNT], dc->next_icount); 385 } 386 if (dc->singlestep_enabled) { 387 gen_exception(dc, EXCP_DEBUG); 388 } else { 389 if (slot >= 0) { 390 tcg_gen_goto_tb(slot); 391 tcg_gen_exit_tb((uintptr_t)dc->tb + slot); 392 } else { 393 tcg_gen_exit_tb(0); 394 } 395 } 396 dc->is_jmp = DISAS_UPDATE; 397 } 398 399 static void gen_jump(DisasContext *dc, TCGv dest) 400 { 401 gen_jump_slot(dc, dest, -1); 402 } 403 404 static void gen_jumpi(DisasContext *dc, uint32_t dest, int slot) 405 { 406 TCGv_i32 tmp = tcg_const_i32(dest); 407 #ifndef CONFIG_USER_ONLY 408 if (((dc->tb->pc ^ dest) & TARGET_PAGE_MASK) != 0) { 409 slot = -1; 410 } 411 #endif 412 gen_jump_slot(dc, tmp, slot); 413 tcg_temp_free(tmp); 414 } 415 416 static void gen_callw_slot(DisasContext *dc, int callinc, TCGv_i32 dest, 417 int slot) 418 { 419 TCGv_i32 tcallinc = tcg_const_i32(callinc); 420 421 tcg_gen_deposit_i32(cpu_SR[PS], cpu_SR[PS], 422 tcallinc, PS_CALLINC_SHIFT, PS_CALLINC_LEN); 423 tcg_temp_free(tcallinc); 424 tcg_gen_movi_i32(cpu_R[callinc << 2], 425 (callinc << 30) | (dc->next_pc & 0x3fffffff)); 426 gen_jump_slot(dc, dest, slot); 427 } 428 429 static void gen_callw(DisasContext *dc, int callinc, TCGv_i32 dest) 430 { 431 gen_callw_slot(dc, callinc, dest, -1); 432 } 433 434 static void gen_callwi(DisasContext *dc, int callinc, uint32_t dest, int slot) 435 { 436 TCGv_i32 tmp = tcg_const_i32(dest); 437 #ifndef CONFIG_USER_ONLY 438 if (((dc->tb->pc ^ dest) & TARGET_PAGE_MASK) != 0) { 439 slot = -1; 440 } 441 #endif 442 gen_callw_slot(dc, callinc, tmp, slot); 443 tcg_temp_free(tmp); 444 } 445 446 static bool gen_check_loop_end(DisasContext *dc, int slot) 447 { 448 if (option_enabled(dc, XTENSA_OPTION_LOOP) && 449 !(dc->tb->flags & XTENSA_TBFLAG_EXCM) && 450 dc->next_pc == dc->lend) { 451 TCGLabel *label = gen_new_label(); 452 453 tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_SR[LCOUNT], 0, label); 454 tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_SR[LCOUNT], 1); 455 gen_jumpi(dc, dc->lbeg, slot); 456 gen_set_label(label); 457 gen_jumpi(dc, dc->next_pc, -1); 458 return true; 459 } 460 return false; 461 } 462 463 static void gen_jumpi_check_loop_end(DisasContext *dc, int slot) 464 { 465 if (!gen_check_loop_end(dc, slot)) { 466 gen_jumpi(dc, dc->next_pc, slot); 467 } 468 } 469 470 static void gen_brcond(DisasContext *dc, TCGCond cond, 471 TCGv_i32 t0, TCGv_i32 t1, uint32_t offset) 472 { 473 TCGLabel *label = gen_new_label(); 474 475 tcg_gen_brcond_i32(cond, t0, t1, label); 476 gen_jumpi_check_loop_end(dc, 0); 477 gen_set_label(label); 478 gen_jumpi(dc, dc->pc + offset, 1); 479 } 480 481 static void gen_brcondi(DisasContext *dc, TCGCond cond, 482 TCGv_i32 t0, uint32_t t1, uint32_t offset) 483 { 484 TCGv_i32 tmp = tcg_const_i32(t1); 485 gen_brcond(dc, cond, t0, tmp, offset); 486 tcg_temp_free(tmp); 487 } 488 489 static bool gen_check_sr(DisasContext *dc, uint32_t sr, unsigned access) 490 { 491 if (!xtensa_option_bits_enabled(dc->config, sregnames[sr].opt_bits)) { 492 if (sregnames[sr].name) { 493 qemu_log_mask(LOG_GUEST_ERROR, "SR %s is not configured\n", sregnames[sr].name); 494 } else { 495 qemu_log_mask(LOG_UNIMP, "SR %d is not implemented\n", sr); 496 } 497 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); 498 return false; 499 } else if (!(sregnames[sr].access & access)) { 500 static const char * const access_text[] = { 501 [SR_R] = "rsr", 502 [SR_W] = "wsr", 503 [SR_X] = "xsr", 504 }; 505 assert(access < ARRAY_SIZE(access_text) && access_text[access]); 506 qemu_log_mask(LOG_GUEST_ERROR, "SR %s is not available for %s\n", sregnames[sr].name, 507 access_text[access]); 508 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); 509 return false; 510 } 511 return true; 512 } 513 514 static bool gen_rsr_ccount(DisasContext *dc, TCGv_i32 d, uint32_t sr) 515 { 516 if (dc->tb->cflags & CF_USE_ICOUNT) { 517 gen_io_start(); 518 } 519 gen_helper_update_ccount(cpu_env); 520 tcg_gen_mov_i32(d, cpu_SR[sr]); 521 if (dc->tb->cflags & CF_USE_ICOUNT) { 522 gen_io_end(); 523 return true; 524 } 525 return false; 526 } 527 528 static bool gen_rsr_ptevaddr(DisasContext *dc, TCGv_i32 d, uint32_t sr) 529 { 530 tcg_gen_shri_i32(d, cpu_SR[EXCVADDR], 10); 531 tcg_gen_or_i32(d, d, cpu_SR[sr]); 532 tcg_gen_andi_i32(d, d, 0xfffffffc); 533 return false; 534 } 535 536 static bool gen_rsr(DisasContext *dc, TCGv_i32 d, uint32_t sr) 537 { 538 static bool (* const rsr_handler[256])(DisasContext *dc, 539 TCGv_i32 d, uint32_t sr) = { 540 [CCOUNT] = gen_rsr_ccount, 541 [INTSET] = gen_rsr_ccount, 542 [PTEVADDR] = gen_rsr_ptevaddr, 543 }; 544 545 if (rsr_handler[sr]) { 546 return rsr_handler[sr](dc, d, sr); 547 } else { 548 tcg_gen_mov_i32(d, cpu_SR[sr]); 549 return false; 550 } 551 } 552 553 static bool gen_wsr_lbeg(DisasContext *dc, uint32_t sr, TCGv_i32 s) 554 { 555 gen_helper_wsr_lbeg(cpu_env, s); 556 gen_jumpi_check_loop_end(dc, 0); 557 return false; 558 } 559 560 static bool gen_wsr_lend(DisasContext *dc, uint32_t sr, TCGv_i32 s) 561 { 562 gen_helper_wsr_lend(cpu_env, s); 563 gen_jumpi_check_loop_end(dc, 0); 564 return false; 565 } 566 567 static bool gen_wsr_sar(DisasContext *dc, uint32_t sr, TCGv_i32 s) 568 { 569 tcg_gen_andi_i32(cpu_SR[sr], s, 0x3f); 570 if (dc->sar_m32_5bit) { 571 tcg_gen_discard_i32(dc->sar_m32); 572 } 573 dc->sar_5bit = false; 574 dc->sar_m32_5bit = false; 575 return false; 576 } 577 578 static bool gen_wsr_br(DisasContext *dc, uint32_t sr, TCGv_i32 s) 579 { 580 tcg_gen_andi_i32(cpu_SR[sr], s, 0xffff); 581 return false; 582 } 583 584 static bool gen_wsr_litbase(DisasContext *dc, uint32_t sr, TCGv_i32 s) 585 { 586 tcg_gen_andi_i32(cpu_SR[sr], s, 0xfffff001); 587 /* This can change tb->flags, so exit tb */ 588 gen_jumpi_check_loop_end(dc, -1); 589 return true; 590 } 591 592 static bool gen_wsr_acchi(DisasContext *dc, uint32_t sr, TCGv_i32 s) 593 { 594 tcg_gen_ext8s_i32(cpu_SR[sr], s); 595 return false; 596 } 597 598 static bool gen_wsr_windowbase(DisasContext *dc, uint32_t sr, TCGv_i32 v) 599 { 600 gen_helper_wsr_windowbase(cpu_env, v); 601 /* This can change tb->flags, so exit tb */ 602 gen_jumpi_check_loop_end(dc, -1); 603 return true; 604 } 605 606 static bool gen_wsr_windowstart(DisasContext *dc, uint32_t sr, TCGv_i32 v) 607 { 608 tcg_gen_andi_i32(cpu_SR[sr], v, (1 << dc->config->nareg / 4) - 1); 609 /* This can change tb->flags, so exit tb */ 610 gen_jumpi_check_loop_end(dc, -1); 611 return true; 612 } 613 614 static bool gen_wsr_ptevaddr(DisasContext *dc, uint32_t sr, TCGv_i32 v) 615 { 616 tcg_gen_andi_i32(cpu_SR[sr], v, 0xffc00000); 617 return false; 618 } 619 620 static bool gen_wsr_rasid(DisasContext *dc, uint32_t sr, TCGv_i32 v) 621 { 622 gen_helper_wsr_rasid(cpu_env, v); 623 /* This can change tb->flags, so exit tb */ 624 gen_jumpi_check_loop_end(dc, -1); 625 return true; 626 } 627 628 static bool gen_wsr_tlbcfg(DisasContext *dc, uint32_t sr, TCGv_i32 v) 629 { 630 tcg_gen_andi_i32(cpu_SR[sr], v, 0x01130000); 631 return false; 632 } 633 634 static bool gen_wsr_ibreakenable(DisasContext *dc, uint32_t sr, TCGv_i32 v) 635 { 636 gen_helper_wsr_ibreakenable(cpu_env, v); 637 gen_jumpi_check_loop_end(dc, 0); 638 return true; 639 } 640 641 static bool gen_wsr_memctl(DisasContext *dc, uint32_t sr, TCGv_i32 v) 642 { 643 gen_helper_wsr_memctl(cpu_env, v); 644 return false; 645 } 646 647 static bool gen_wsr_atomctl(DisasContext *dc, uint32_t sr, TCGv_i32 v) 648 { 649 tcg_gen_andi_i32(cpu_SR[sr], v, 0x3f); 650 return false; 651 } 652 653 static bool gen_wsr_ibreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v) 654 { 655 unsigned id = sr - IBREAKA; 656 657 if (id < dc->config->nibreak) { 658 TCGv_i32 tmp = tcg_const_i32(id); 659 gen_helper_wsr_ibreaka(cpu_env, tmp, v); 660 tcg_temp_free(tmp); 661 gen_jumpi_check_loop_end(dc, 0); 662 return true; 663 } 664 return false; 665 } 666 667 static bool gen_wsr_dbreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v) 668 { 669 unsigned id = sr - DBREAKA; 670 671 if (id < dc->config->ndbreak) { 672 TCGv_i32 tmp = tcg_const_i32(id); 673 gen_helper_wsr_dbreaka(cpu_env, tmp, v); 674 tcg_temp_free(tmp); 675 } 676 return false; 677 } 678 679 static bool gen_wsr_dbreakc(DisasContext *dc, uint32_t sr, TCGv_i32 v) 680 { 681 unsigned id = sr - DBREAKC; 682 683 if (id < dc->config->ndbreak) { 684 TCGv_i32 tmp = tcg_const_i32(id); 685 gen_helper_wsr_dbreakc(cpu_env, tmp, v); 686 tcg_temp_free(tmp); 687 } 688 return false; 689 } 690 691 static bool gen_wsr_cpenable(DisasContext *dc, uint32_t sr, TCGv_i32 v) 692 { 693 tcg_gen_andi_i32(cpu_SR[sr], v, 0xff); 694 /* This can change tb->flags, so exit tb */ 695 gen_jumpi_check_loop_end(dc, -1); 696 return true; 697 } 698 699 static void gen_check_interrupts(DisasContext *dc) 700 { 701 if (dc->tb->cflags & CF_USE_ICOUNT) { 702 gen_io_start(); 703 } 704 gen_helper_check_interrupts(cpu_env); 705 if (dc->tb->cflags & CF_USE_ICOUNT) { 706 gen_io_end(); 707 } 708 } 709 710 static bool gen_wsr_intset(DisasContext *dc, uint32_t sr, TCGv_i32 v) 711 { 712 tcg_gen_andi_i32(cpu_SR[sr], v, 713 dc->config->inttype_mask[INTTYPE_SOFTWARE]); 714 gen_check_interrupts(dc); 715 gen_jumpi_check_loop_end(dc, 0); 716 return true; 717 } 718 719 static bool gen_wsr_intclear(DisasContext *dc, uint32_t sr, TCGv_i32 v) 720 { 721 TCGv_i32 tmp = tcg_temp_new_i32(); 722 723 tcg_gen_andi_i32(tmp, v, 724 dc->config->inttype_mask[INTTYPE_EDGE] | 725 dc->config->inttype_mask[INTTYPE_NMI] | 726 dc->config->inttype_mask[INTTYPE_SOFTWARE]); 727 tcg_gen_andc_i32(cpu_SR[INTSET], cpu_SR[INTSET], tmp); 728 tcg_temp_free(tmp); 729 gen_check_interrupts(dc); 730 gen_jumpi_check_loop_end(dc, 0); 731 return true; 732 } 733 734 static bool gen_wsr_intenable(DisasContext *dc, uint32_t sr, TCGv_i32 v) 735 { 736 tcg_gen_mov_i32(cpu_SR[sr], v); 737 gen_check_interrupts(dc); 738 gen_jumpi_check_loop_end(dc, 0); 739 return true; 740 } 741 742 static bool gen_wsr_ps(DisasContext *dc, uint32_t sr, TCGv_i32 v) 743 { 744 uint32_t mask = PS_WOE | PS_CALLINC | PS_OWB | 745 PS_UM | PS_EXCM | PS_INTLEVEL; 746 747 if (option_enabled(dc, XTENSA_OPTION_MMU)) { 748 mask |= PS_RING; 749 } 750 tcg_gen_andi_i32(cpu_SR[sr], v, mask); 751 gen_check_interrupts(dc); 752 /* This can change mmu index and tb->flags, so exit tb */ 753 gen_jumpi_check_loop_end(dc, -1); 754 return true; 755 } 756 757 static bool gen_wsr_ccount(DisasContext *dc, uint32_t sr, TCGv_i32 v) 758 { 759 if (dc->tb->cflags & CF_USE_ICOUNT) { 760 gen_io_start(); 761 } 762 gen_helper_wsr_ccount(cpu_env, v); 763 if (dc->tb->cflags & CF_USE_ICOUNT) { 764 gen_io_end(); 765 gen_jumpi_check_loop_end(dc, 0); 766 return true; 767 } 768 return false; 769 } 770 771 static bool gen_wsr_icount(DisasContext *dc, uint32_t sr, TCGv_i32 v) 772 { 773 if (dc->icount) { 774 tcg_gen_mov_i32(dc->next_icount, v); 775 } else { 776 tcg_gen_mov_i32(cpu_SR[sr], v); 777 } 778 return false; 779 } 780 781 static bool gen_wsr_icountlevel(DisasContext *dc, uint32_t sr, TCGv_i32 v) 782 { 783 tcg_gen_andi_i32(cpu_SR[sr], v, 0xf); 784 /* This can change tb->flags, so exit tb */ 785 gen_jumpi_check_loop_end(dc, -1); 786 return true; 787 } 788 789 static bool gen_wsr_ccompare(DisasContext *dc, uint32_t sr, TCGv_i32 v) 790 { 791 uint32_t id = sr - CCOMPARE; 792 bool ret = false; 793 794 if (id < dc->config->nccompare) { 795 uint32_t int_bit = 1 << dc->config->timerint[id]; 796 TCGv_i32 tmp = tcg_const_i32(id); 797 798 tcg_gen_mov_i32(cpu_SR[sr], v); 799 tcg_gen_andi_i32(cpu_SR[INTSET], cpu_SR[INTSET], ~int_bit); 800 if (dc->tb->cflags & CF_USE_ICOUNT) { 801 gen_io_start(); 802 } 803 gen_helper_update_ccompare(cpu_env, tmp); 804 if (dc->tb->cflags & CF_USE_ICOUNT) { 805 gen_io_end(); 806 gen_jumpi_check_loop_end(dc, 0); 807 ret = true; 808 } 809 tcg_temp_free(tmp); 810 } 811 return ret; 812 } 813 814 static bool gen_wsr(DisasContext *dc, uint32_t sr, TCGv_i32 s) 815 { 816 static bool (* const wsr_handler[256])(DisasContext *dc, 817 uint32_t sr, TCGv_i32 v) = { 818 [LBEG] = gen_wsr_lbeg, 819 [LEND] = gen_wsr_lend, 820 [SAR] = gen_wsr_sar, 821 [BR] = gen_wsr_br, 822 [LITBASE] = gen_wsr_litbase, 823 [ACCHI] = gen_wsr_acchi, 824 [WINDOW_BASE] = gen_wsr_windowbase, 825 [WINDOW_START] = gen_wsr_windowstart, 826 [PTEVADDR] = gen_wsr_ptevaddr, 827 [RASID] = gen_wsr_rasid, 828 [ITLBCFG] = gen_wsr_tlbcfg, 829 [DTLBCFG] = gen_wsr_tlbcfg, 830 [IBREAKENABLE] = gen_wsr_ibreakenable, 831 [MEMCTL] = gen_wsr_memctl, 832 [ATOMCTL] = gen_wsr_atomctl, 833 [IBREAKA] = gen_wsr_ibreaka, 834 [IBREAKA + 1] = gen_wsr_ibreaka, 835 [DBREAKA] = gen_wsr_dbreaka, 836 [DBREAKA + 1] = gen_wsr_dbreaka, 837 [DBREAKC] = gen_wsr_dbreakc, 838 [DBREAKC + 1] = gen_wsr_dbreakc, 839 [CPENABLE] = gen_wsr_cpenable, 840 [INTSET] = gen_wsr_intset, 841 [INTCLEAR] = gen_wsr_intclear, 842 [INTENABLE] = gen_wsr_intenable, 843 [PS] = gen_wsr_ps, 844 [CCOUNT] = gen_wsr_ccount, 845 [ICOUNT] = gen_wsr_icount, 846 [ICOUNTLEVEL] = gen_wsr_icountlevel, 847 [CCOMPARE] = gen_wsr_ccompare, 848 [CCOMPARE + 1] = gen_wsr_ccompare, 849 [CCOMPARE + 2] = gen_wsr_ccompare, 850 }; 851 852 if (wsr_handler[sr]) { 853 return wsr_handler[sr](dc, sr, s); 854 } else { 855 tcg_gen_mov_i32(cpu_SR[sr], s); 856 return false; 857 } 858 } 859 860 static void gen_wur(uint32_t ur, TCGv_i32 s) 861 { 862 switch (ur) { 863 case FCR: 864 gen_helper_wur_fcr(cpu_env, s); 865 break; 866 867 case FSR: 868 tcg_gen_andi_i32(cpu_UR[ur], s, 0xffffff80); 869 break; 870 871 default: 872 tcg_gen_mov_i32(cpu_UR[ur], s); 873 break; 874 } 875 } 876 877 static void gen_load_store_alignment(DisasContext *dc, int shift, 878 TCGv_i32 addr, bool no_hw_alignment) 879 { 880 if (!option_enabled(dc, XTENSA_OPTION_UNALIGNED_EXCEPTION)) { 881 tcg_gen_andi_i32(addr, addr, ~0 << shift); 882 } else if (option_enabled(dc, XTENSA_OPTION_HW_ALIGNMENT) && 883 no_hw_alignment) { 884 TCGLabel *label = gen_new_label(); 885 TCGv_i32 tmp = tcg_temp_new_i32(); 886 tcg_gen_andi_i32(tmp, addr, ~(~0 << shift)); 887 tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label); 888 gen_exception_cause_vaddr(dc, LOAD_STORE_ALIGNMENT_CAUSE, addr); 889 gen_set_label(label); 890 tcg_temp_free(tmp); 891 } 892 } 893 894 static void gen_waiti(DisasContext *dc, uint32_t imm4) 895 { 896 TCGv_i32 pc = tcg_const_i32(dc->next_pc); 897 TCGv_i32 intlevel = tcg_const_i32(imm4); 898 899 if (dc->tb->cflags & CF_USE_ICOUNT) { 900 gen_io_start(); 901 } 902 gen_helper_waiti(cpu_env, pc, intlevel); 903 if (dc->tb->cflags & CF_USE_ICOUNT) { 904 gen_io_end(); 905 } 906 tcg_temp_free(pc); 907 tcg_temp_free(intlevel); 908 gen_jumpi_check_loop_end(dc, 0); 909 } 910 911 static bool gen_window_check1(DisasContext *dc, unsigned r1) 912 { 913 if (r1 / 4 > dc->window) { 914 TCGv_i32 pc = tcg_const_i32(dc->pc); 915 TCGv_i32 w = tcg_const_i32(r1 / 4); 916 917 gen_helper_window_check(cpu_env, pc, w); 918 dc->is_jmp = DISAS_UPDATE; 919 return false; 920 } 921 return true; 922 } 923 924 static bool gen_window_check2(DisasContext *dc, unsigned r1, unsigned r2) 925 { 926 return gen_window_check1(dc, r1 > r2 ? r1 : r2); 927 } 928 929 static bool gen_window_check3(DisasContext *dc, unsigned r1, unsigned r2, 930 unsigned r3) 931 { 932 return gen_window_check2(dc, r1, r2 > r3 ? r2 : r3); 933 } 934 935 static TCGv_i32 gen_mac16_m(TCGv_i32 v, bool hi, bool is_unsigned) 936 { 937 TCGv_i32 m = tcg_temp_new_i32(); 938 939 if (hi) { 940 (is_unsigned ? tcg_gen_shri_i32 : tcg_gen_sari_i32)(m, v, 16); 941 } else { 942 (is_unsigned ? tcg_gen_ext16u_i32 : tcg_gen_ext16s_i32)(m, v); 943 } 944 return m; 945 } 946 947 static inline unsigned xtensa_op0_insn_len(unsigned op0) 948 { 949 return op0 >= 8 ? 2 : 3; 950 } 951 952 static void disas_xtensa_insn(CPUXtensaState *env, DisasContext *dc) 953 { 954 #define HAS_OPTION_BITS(opt) do { \ 955 if (!option_bits_enabled(dc, opt)) { \ 956 qemu_log_mask(LOG_GUEST_ERROR, "Option is not enabled %s:%d\n", \ 957 __FILE__, __LINE__); \ 958 goto invalid_opcode; \ 959 } \ 960 } while (0) 961 962 #define HAS_OPTION(opt) HAS_OPTION_BITS(XTENSA_OPTION_BIT(opt)) 963 964 #define TBD() qemu_log_mask(LOG_UNIMP, "TBD(pc = %08x): %s:%d\n", dc->pc, __FILE__, __LINE__) 965 #define RESERVED() do { \ 966 qemu_log_mask(LOG_GUEST_ERROR, "RESERVED(pc = %08x, %02x%02x%02x): %s:%d\n", \ 967 dc->pc, b0, b1, b2, __FILE__, __LINE__); \ 968 goto invalid_opcode; \ 969 } while (0) 970 971 972 #ifdef TARGET_WORDS_BIGENDIAN 973 #define OP0 (((b0) & 0xf0) >> 4) 974 #define OP1 (((b2) & 0xf0) >> 4) 975 #define OP2 ((b2) & 0xf) 976 #define RRR_R ((b1) & 0xf) 977 #define RRR_S (((b1) & 0xf0) >> 4) 978 #define RRR_T ((b0) & 0xf) 979 #else 980 #define OP0 (((b0) & 0xf)) 981 #define OP1 (((b2) & 0xf)) 982 #define OP2 (((b2) & 0xf0) >> 4) 983 #define RRR_R (((b1) & 0xf0) >> 4) 984 #define RRR_S (((b1) & 0xf)) 985 #define RRR_T (((b0) & 0xf0) >> 4) 986 #endif 987 #define RRR_X ((RRR_R & 0x4) >> 2) 988 #define RRR_Y ((RRR_T & 0x4) >> 2) 989 #define RRR_W (RRR_R & 0x3) 990 991 #define RRRN_R RRR_R 992 #define RRRN_S RRR_S 993 #define RRRN_T RRR_T 994 995 #define RRI4_R RRR_R 996 #define RRI4_S RRR_S 997 #define RRI4_T RRR_T 998 #ifdef TARGET_WORDS_BIGENDIAN 999 #define RRI4_IMM4 ((b2) & 0xf) 1000 #else 1001 #define RRI4_IMM4 (((b2) & 0xf0) >> 4) 1002 #endif 1003 1004 #define RRI8_R RRR_R 1005 #define RRI8_S RRR_S 1006 #define RRI8_T RRR_T 1007 #define RRI8_IMM8 (b2) 1008 #define RRI8_IMM8_SE ((((b2) & 0x80) ? 0xffffff00 : 0) | RRI8_IMM8) 1009 1010 #ifdef TARGET_WORDS_BIGENDIAN 1011 #define RI16_IMM16 (((b1) << 8) | (b2)) 1012 #else 1013 #define RI16_IMM16 (((b2) << 8) | (b1)) 1014 #endif 1015 1016 #ifdef TARGET_WORDS_BIGENDIAN 1017 #define CALL_N (((b0) & 0xc) >> 2) 1018 #define CALL_OFFSET ((((b0) & 0x3) << 16) | ((b1) << 8) | (b2)) 1019 #else 1020 #define CALL_N (((b0) & 0x30) >> 4) 1021 #define CALL_OFFSET ((((b0) & 0xc0) >> 6) | ((b1) << 2) | ((b2) << 10)) 1022 #endif 1023 #define CALL_OFFSET_SE \ 1024 (((CALL_OFFSET & 0x20000) ? 0xfffc0000 : 0) | CALL_OFFSET) 1025 1026 #define CALLX_N CALL_N 1027 #ifdef TARGET_WORDS_BIGENDIAN 1028 #define CALLX_M ((b0) & 0x3) 1029 #else 1030 #define CALLX_M (((b0) & 0xc0) >> 6) 1031 #endif 1032 #define CALLX_S RRR_S 1033 1034 #define BRI12_M CALLX_M 1035 #define BRI12_S RRR_S 1036 #ifdef TARGET_WORDS_BIGENDIAN 1037 #define BRI12_IMM12 ((((b1) & 0xf) << 8) | (b2)) 1038 #else 1039 #define BRI12_IMM12 ((((b1) & 0xf0) >> 4) | ((b2) << 4)) 1040 #endif 1041 #define BRI12_IMM12_SE (((BRI12_IMM12 & 0x800) ? 0xfffff000 : 0) | BRI12_IMM12) 1042 1043 #define BRI8_M BRI12_M 1044 #define BRI8_R RRI8_R 1045 #define BRI8_S RRI8_S 1046 #define BRI8_IMM8 RRI8_IMM8 1047 #define BRI8_IMM8_SE RRI8_IMM8_SE 1048 1049 #define RSR_SR (b1) 1050 1051 uint8_t b0 = cpu_ldub_code(env, dc->pc); 1052 uint8_t b1 = cpu_ldub_code(env, dc->pc + 1); 1053 uint8_t b2 = 0; 1054 unsigned len = xtensa_op0_insn_len(OP0); 1055 1056 static const uint32_t B4CONST[] = { 1057 0xffffffff, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256 1058 }; 1059 1060 static const uint32_t B4CONSTU[] = { 1061 32768, 65536, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256 1062 }; 1063 1064 switch (len) { 1065 case 2: 1066 HAS_OPTION(XTENSA_OPTION_CODE_DENSITY); 1067 break; 1068 1069 case 3: 1070 b2 = cpu_ldub_code(env, dc->pc + 2); 1071 break; 1072 1073 default: 1074 RESERVED(); 1075 } 1076 dc->next_pc = dc->pc + len; 1077 1078 switch (OP0) { 1079 case 0: /*QRST*/ 1080 switch (OP1) { 1081 case 0: /*RST0*/ 1082 switch (OP2) { 1083 case 0: /*ST0*/ 1084 if ((RRR_R & 0xc) == 0x8) { 1085 HAS_OPTION(XTENSA_OPTION_BOOLEAN); 1086 } 1087 1088 switch (RRR_R) { 1089 case 0: /*SNM0*/ 1090 switch (CALLX_M) { 1091 case 0: /*ILL*/ 1092 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); 1093 break; 1094 1095 case 1: /*reserved*/ 1096 RESERVED(); 1097 break; 1098 1099 case 2: /*JR*/ 1100 switch (CALLX_N) { 1101 case 0: /*RET*/ 1102 case 2: /*JX*/ 1103 if (gen_window_check1(dc, CALLX_S)) { 1104 gen_jump(dc, cpu_R[CALLX_S]); 1105 } 1106 break; 1107 1108 case 1: /*RETWw*/ 1109 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); 1110 { 1111 TCGv_i32 tmp = tcg_const_i32(dc->pc); 1112 gen_helper_retw(tmp, cpu_env, tmp); 1113 gen_jump(dc, tmp); 1114 tcg_temp_free(tmp); 1115 } 1116 break; 1117 1118 case 3: /*reserved*/ 1119 RESERVED(); 1120 break; 1121 } 1122 break; 1123 1124 case 3: /*CALLX*/ 1125 if (!gen_window_check2(dc, CALLX_S, CALLX_N << 2)) { 1126 break; 1127 } 1128 switch (CALLX_N) { 1129 case 0: /*CALLX0*/ 1130 { 1131 TCGv_i32 tmp = tcg_temp_new_i32(); 1132 tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]); 1133 tcg_gen_movi_i32(cpu_R[0], dc->next_pc); 1134 gen_jump(dc, tmp); 1135 tcg_temp_free(tmp); 1136 } 1137 break; 1138 1139 case 1: /*CALLX4w*/ 1140 case 2: /*CALLX8w*/ 1141 case 3: /*CALLX12w*/ 1142 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); 1143 { 1144 TCGv_i32 tmp = tcg_temp_new_i32(); 1145 1146 tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]); 1147 gen_callw(dc, CALLX_N, tmp); 1148 tcg_temp_free(tmp); 1149 } 1150 break; 1151 } 1152 break; 1153 } 1154 break; 1155 1156 case 1: /*MOVSPw*/ 1157 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); 1158 if (gen_window_check2(dc, RRR_T, RRR_S)) { 1159 TCGv_i32 pc = tcg_const_i32(dc->pc); 1160 gen_helper_movsp(cpu_env, pc); 1161 tcg_gen_mov_i32(cpu_R[RRR_T], cpu_R[RRR_S]); 1162 tcg_temp_free(pc); 1163 } 1164 break; 1165 1166 case 2: /*SYNC*/ 1167 switch (RRR_T) { 1168 case 0: /*ISYNC*/ 1169 break; 1170 1171 case 1: /*RSYNC*/ 1172 break; 1173 1174 case 2: /*ESYNC*/ 1175 break; 1176 1177 case 3: /*DSYNC*/ 1178 break; 1179 1180 case 8: /*EXCW*/ 1181 HAS_OPTION(XTENSA_OPTION_EXCEPTION); 1182 break; 1183 1184 case 12: /*MEMW*/ 1185 break; 1186 1187 case 13: /*EXTW*/ 1188 break; 1189 1190 case 15: /*NOP*/ 1191 break; 1192 1193 default: /*reserved*/ 1194 RESERVED(); 1195 break; 1196 } 1197 break; 1198 1199 case 3: /*RFEIx*/ 1200 switch (RRR_T) { 1201 case 0: /*RFETx*/ 1202 HAS_OPTION(XTENSA_OPTION_EXCEPTION); 1203 switch (RRR_S) { 1204 case 0: /*RFEx*/ 1205 if (gen_check_privilege(dc)) { 1206 tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_EXCM); 1207 gen_check_interrupts(dc); 1208 gen_jump(dc, cpu_SR[EPC1]); 1209 } 1210 break; 1211 1212 case 1: /*RFUEx*/ 1213 RESERVED(); 1214 break; 1215 1216 case 2: /*RFDEx*/ 1217 if (gen_check_privilege(dc)) { 1218 gen_jump(dc, cpu_SR[ 1219 dc->config->ndepc ? DEPC : EPC1]); 1220 } 1221 break; 1222 1223 case 4: /*RFWOw*/ 1224 case 5: /*RFWUw*/ 1225 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); 1226 if (gen_check_privilege(dc)) { 1227 TCGv_i32 tmp = tcg_const_i32(1); 1228 1229 tcg_gen_andi_i32( 1230 cpu_SR[PS], cpu_SR[PS], ~PS_EXCM); 1231 tcg_gen_shl_i32(tmp, tmp, cpu_SR[WINDOW_BASE]); 1232 1233 if (RRR_S == 4) { 1234 tcg_gen_andc_i32(cpu_SR[WINDOW_START], 1235 cpu_SR[WINDOW_START], tmp); 1236 } else { 1237 tcg_gen_or_i32(cpu_SR[WINDOW_START], 1238 cpu_SR[WINDOW_START], tmp); 1239 } 1240 1241 gen_helper_restore_owb(cpu_env); 1242 gen_check_interrupts(dc); 1243 gen_jump(dc, cpu_SR[EPC1]); 1244 1245 tcg_temp_free(tmp); 1246 } 1247 break; 1248 1249 default: /*reserved*/ 1250 RESERVED(); 1251 break; 1252 } 1253 break; 1254 1255 case 1: /*RFIx*/ 1256 HAS_OPTION(XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT); 1257 if (RRR_S >= 2 && RRR_S <= dc->config->nlevel) { 1258 if (gen_check_privilege(dc)) { 1259 tcg_gen_mov_i32(cpu_SR[PS], 1260 cpu_SR[EPS2 + RRR_S - 2]); 1261 gen_check_interrupts(dc); 1262 gen_jump(dc, cpu_SR[EPC1 + RRR_S - 1]); 1263 } 1264 } else { 1265 qemu_log_mask(LOG_GUEST_ERROR, "RFI %d is illegal\n", RRR_S); 1266 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); 1267 } 1268 break; 1269 1270 case 2: /*RFME*/ 1271 TBD(); 1272 break; 1273 1274 default: /*reserved*/ 1275 RESERVED(); 1276 break; 1277 1278 } 1279 break; 1280 1281 case 4: /*BREAKx*/ 1282 HAS_OPTION(XTENSA_OPTION_DEBUG); 1283 if (dc->debug) { 1284 gen_debug_exception(dc, DEBUGCAUSE_BI); 1285 } 1286 break; 1287 1288 case 5: /*SYSCALLx*/ 1289 HAS_OPTION(XTENSA_OPTION_EXCEPTION); 1290 switch (RRR_S) { 1291 case 0: /*SYSCALLx*/ 1292 gen_exception_cause(dc, SYSCALL_CAUSE); 1293 break; 1294 1295 case 1: /*SIMCALL*/ 1296 if (semihosting_enabled()) { 1297 if (gen_check_privilege(dc)) { 1298 gen_helper_simcall(cpu_env); 1299 } 1300 } else { 1301 qemu_log_mask(LOG_GUEST_ERROR, "SIMCALL but semihosting is disabled\n"); 1302 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); 1303 } 1304 break; 1305 1306 default: 1307 RESERVED(); 1308 break; 1309 } 1310 break; 1311 1312 case 6: /*RSILx*/ 1313 HAS_OPTION(XTENSA_OPTION_INTERRUPT); 1314 if (gen_check_privilege(dc) && 1315 gen_window_check1(dc, RRR_T)) { 1316 tcg_gen_mov_i32(cpu_R[RRR_T], cpu_SR[PS]); 1317 tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_INTLEVEL); 1318 tcg_gen_ori_i32(cpu_SR[PS], cpu_SR[PS], RRR_S); 1319 gen_check_interrupts(dc); 1320 gen_jumpi_check_loop_end(dc, 0); 1321 } 1322 break; 1323 1324 case 7: /*WAITIx*/ 1325 HAS_OPTION(XTENSA_OPTION_INTERRUPT); 1326 if (gen_check_privilege(dc)) { 1327 gen_waiti(dc, RRR_S); 1328 } 1329 break; 1330 1331 case 8: /*ANY4p*/ 1332 case 9: /*ALL4p*/ 1333 case 10: /*ANY8p*/ 1334 case 11: /*ALL8p*/ 1335 HAS_OPTION(XTENSA_OPTION_BOOLEAN); 1336 { 1337 const unsigned shift = (RRR_R & 2) ? 8 : 4; 1338 TCGv_i32 mask = tcg_const_i32( 1339 ((1 << shift) - 1) << RRR_S); 1340 TCGv_i32 tmp = tcg_temp_new_i32(); 1341 1342 tcg_gen_and_i32(tmp, cpu_SR[BR], mask); 1343 if (RRR_R & 1) { /*ALL*/ 1344 tcg_gen_addi_i32(tmp, tmp, 1 << RRR_S); 1345 } else { /*ANY*/ 1346 tcg_gen_add_i32(tmp, tmp, mask); 1347 } 1348 tcg_gen_shri_i32(tmp, tmp, RRR_S + shift); 1349 tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR], 1350 tmp, RRR_T, 1); 1351 tcg_temp_free(mask); 1352 tcg_temp_free(tmp); 1353 } 1354 break; 1355 1356 default: /*reserved*/ 1357 RESERVED(); 1358 break; 1359 1360 } 1361 break; 1362 1363 case 1: /*AND*/ 1364 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { 1365 tcg_gen_and_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); 1366 } 1367 break; 1368 1369 case 2: /*OR*/ 1370 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { 1371 tcg_gen_or_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); 1372 } 1373 break; 1374 1375 case 3: /*XOR*/ 1376 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { 1377 tcg_gen_xor_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); 1378 } 1379 break; 1380 1381 case 4: /*ST1*/ 1382 switch (RRR_R) { 1383 case 0: /*SSR*/ 1384 if (gen_window_check1(dc, RRR_S)) { 1385 gen_right_shift_sar(dc, cpu_R[RRR_S]); 1386 } 1387 break; 1388 1389 case 1: /*SSL*/ 1390 if (gen_window_check1(dc, RRR_S)) { 1391 gen_left_shift_sar(dc, cpu_R[RRR_S]); 1392 } 1393 break; 1394 1395 case 2: /*SSA8L*/ 1396 if (gen_window_check1(dc, RRR_S)) { 1397 TCGv_i32 tmp = tcg_temp_new_i32(); 1398 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3); 1399 gen_right_shift_sar(dc, tmp); 1400 tcg_temp_free(tmp); 1401 } 1402 break; 1403 1404 case 3: /*SSA8B*/ 1405 if (gen_window_check1(dc, RRR_S)) { 1406 TCGv_i32 tmp = tcg_temp_new_i32(); 1407 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3); 1408 gen_left_shift_sar(dc, tmp); 1409 tcg_temp_free(tmp); 1410 } 1411 break; 1412 1413 case 4: /*SSAI*/ 1414 { 1415 TCGv_i32 tmp = tcg_const_i32( 1416 RRR_S | ((RRR_T & 1) << 4)); 1417 gen_right_shift_sar(dc, tmp); 1418 tcg_temp_free(tmp); 1419 } 1420 break; 1421 1422 case 6: /*RER*/ 1423 HAS_OPTION(XTENSA_OPTION_EXTERN_REGS); 1424 if (gen_check_privilege(dc) && 1425 gen_window_check2(dc, RRR_S, RRR_T)) { 1426 gen_helper_rer(cpu_R[RRR_T], cpu_env, cpu_R[RRR_S]); 1427 } 1428 break; 1429 1430 case 7: /*WER*/ 1431 HAS_OPTION(XTENSA_OPTION_EXTERN_REGS); 1432 if (gen_check_privilege(dc) && 1433 gen_window_check2(dc, RRR_S, RRR_T)) { 1434 gen_helper_wer(cpu_env, cpu_R[RRR_T], cpu_R[RRR_S]); 1435 } 1436 break; 1437 1438 case 8: /*ROTWw*/ 1439 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); 1440 if (gen_check_privilege(dc)) { 1441 TCGv_i32 tmp = tcg_const_i32( 1442 RRR_T | ((RRR_T & 8) ? 0xfffffff0 : 0)); 1443 gen_helper_rotw(cpu_env, tmp); 1444 tcg_temp_free(tmp); 1445 /* This can change tb->flags, so exit tb */ 1446 gen_jumpi_check_loop_end(dc, -1); 1447 } 1448 break; 1449 1450 case 14: /*NSAu*/ 1451 HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA); 1452 if (gen_window_check2(dc, RRR_S, RRR_T)) { 1453 tcg_gen_clrsb_i32(cpu_R[RRR_T], cpu_R[RRR_S]); 1454 } 1455 break; 1456 1457 case 15: /*NSAUu*/ 1458 HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA); 1459 if (gen_window_check2(dc, RRR_S, RRR_T)) { 1460 tcg_gen_clzi_i32(cpu_R[RRR_T], cpu_R[RRR_S], 32); 1461 } 1462 break; 1463 1464 default: /*reserved*/ 1465 RESERVED(); 1466 break; 1467 } 1468 break; 1469 1470 case 5: /*TLB*/ 1471 HAS_OPTION_BITS( 1472 XTENSA_OPTION_BIT(XTENSA_OPTION_MMU) | 1473 XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_PROTECTION) | 1474 XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_TRANSLATION)); 1475 if (gen_check_privilege(dc) && 1476 gen_window_check2(dc, RRR_S, RRR_T)) { 1477 TCGv_i32 dtlb = tcg_const_i32((RRR_R & 8) != 0); 1478 1479 switch (RRR_R & 7) { 1480 case 3: /*RITLB0*/ /*RDTLB0*/ 1481 gen_helper_rtlb0(cpu_R[RRR_T], 1482 cpu_env, cpu_R[RRR_S], dtlb); 1483 break; 1484 1485 case 4: /*IITLB*/ /*IDTLB*/ 1486 gen_helper_itlb(cpu_env, cpu_R[RRR_S], dtlb); 1487 /* This could change memory mapping, so exit tb */ 1488 gen_jumpi_check_loop_end(dc, -1); 1489 break; 1490 1491 case 5: /*PITLB*/ /*PDTLB*/ 1492 tcg_gen_movi_i32(cpu_pc, dc->pc); 1493 gen_helper_ptlb(cpu_R[RRR_T], 1494 cpu_env, cpu_R[RRR_S], dtlb); 1495 break; 1496 1497 case 6: /*WITLB*/ /*WDTLB*/ 1498 gen_helper_wtlb( 1499 cpu_env, cpu_R[RRR_T], cpu_R[RRR_S], dtlb); 1500 /* This could change memory mapping, so exit tb */ 1501 gen_jumpi_check_loop_end(dc, -1); 1502 break; 1503 1504 case 7: /*RITLB1*/ /*RDTLB1*/ 1505 gen_helper_rtlb1(cpu_R[RRR_T], 1506 cpu_env, cpu_R[RRR_S], dtlb); 1507 break; 1508 1509 default: 1510 tcg_temp_free(dtlb); 1511 RESERVED(); 1512 break; 1513 } 1514 tcg_temp_free(dtlb); 1515 } 1516 break; 1517 1518 case 6: /*RT0*/ 1519 if (!gen_window_check2(dc, RRR_R, RRR_T)) { 1520 break; 1521 } 1522 switch (RRR_S) { 1523 case 0: /*NEG*/ 1524 tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]); 1525 break; 1526 1527 case 1: /*ABS*/ 1528 { 1529 TCGv_i32 zero = tcg_const_i32(0); 1530 TCGv_i32 neg = tcg_temp_new_i32(); 1531 1532 tcg_gen_neg_i32(neg, cpu_R[RRR_T]); 1533 tcg_gen_movcond_i32(TCG_COND_GE, cpu_R[RRR_R], 1534 cpu_R[RRR_T], zero, cpu_R[RRR_T], neg); 1535 tcg_temp_free(neg); 1536 tcg_temp_free(zero); 1537 } 1538 break; 1539 1540 default: /*reserved*/ 1541 RESERVED(); 1542 break; 1543 } 1544 break; 1545 1546 case 7: /*reserved*/ 1547 RESERVED(); 1548 break; 1549 1550 case 8: /*ADD*/ 1551 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { 1552 tcg_gen_add_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); 1553 } 1554 break; 1555 1556 case 9: /*ADD**/ 1557 case 10: 1558 case 11: 1559 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { 1560 TCGv_i32 tmp = tcg_temp_new_i32(); 1561 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 8); 1562 tcg_gen_add_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]); 1563 tcg_temp_free(tmp); 1564 } 1565 break; 1566 1567 case 12: /*SUB*/ 1568 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { 1569 tcg_gen_sub_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); 1570 } 1571 break; 1572 1573 case 13: /*SUB**/ 1574 case 14: 1575 case 15: 1576 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { 1577 TCGv_i32 tmp = tcg_temp_new_i32(); 1578 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 12); 1579 tcg_gen_sub_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]); 1580 tcg_temp_free(tmp); 1581 } 1582 break; 1583 } 1584 break; 1585 1586 case 1: /*RST1*/ 1587 switch (OP2) { 1588 case 0: /*SLLI*/ 1589 case 1: 1590 if (gen_window_check2(dc, RRR_R, RRR_S)) { 1591 tcg_gen_shli_i32(cpu_R[RRR_R], cpu_R[RRR_S], 1592 32 - (RRR_T | ((OP2 & 1) << 4))); 1593 } 1594 break; 1595 1596 case 2: /*SRAI*/ 1597 case 3: 1598 if (gen_window_check2(dc, RRR_R, RRR_T)) { 1599 tcg_gen_sari_i32(cpu_R[RRR_R], cpu_R[RRR_T], 1600 RRR_S | ((OP2 & 1) << 4)); 1601 } 1602 break; 1603 1604 case 4: /*SRLI*/ 1605 if (gen_window_check2(dc, RRR_R, RRR_T)) { 1606 tcg_gen_shri_i32(cpu_R[RRR_R], cpu_R[RRR_T], RRR_S); 1607 } 1608 break; 1609 1610 case 6: /*XSR*/ 1611 if (gen_check_sr(dc, RSR_SR, SR_X) && 1612 (RSR_SR < 64 || gen_check_privilege(dc)) && 1613 gen_window_check1(dc, RRR_T)) { 1614 TCGv_i32 tmp = tcg_temp_new_i32(); 1615 bool rsr_end, wsr_end; 1616 1617 tcg_gen_mov_i32(tmp, cpu_R[RRR_T]); 1618 rsr_end = gen_rsr(dc, cpu_R[RRR_T], RSR_SR); 1619 wsr_end = gen_wsr(dc, RSR_SR, tmp); 1620 tcg_temp_free(tmp); 1621 if (rsr_end && !wsr_end) { 1622 gen_jumpi_check_loop_end(dc, 0); 1623 } 1624 } 1625 break; 1626 1627 /* 1628 * Note: 64 bit ops are used here solely because SAR values 1629 * have range 0..63 1630 */ 1631 #define gen_shift_reg(cmd, reg) do { \ 1632 TCGv_i64 tmp = tcg_temp_new_i64(); \ 1633 tcg_gen_extu_i32_i64(tmp, reg); \ 1634 tcg_gen_##cmd##_i64(v, v, tmp); \ 1635 tcg_gen_extrl_i64_i32(cpu_R[RRR_R], v); \ 1636 tcg_temp_free_i64(v); \ 1637 tcg_temp_free_i64(tmp); \ 1638 } while (0) 1639 1640 #define gen_shift(cmd) gen_shift_reg(cmd, cpu_SR[SAR]) 1641 1642 case 8: /*SRC*/ 1643 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { 1644 TCGv_i64 v = tcg_temp_new_i64(); 1645 tcg_gen_concat_i32_i64(v, cpu_R[RRR_T], cpu_R[RRR_S]); 1646 gen_shift(shr); 1647 } 1648 break; 1649 1650 case 9: /*SRL*/ 1651 if (!gen_window_check2(dc, RRR_R, RRR_T)) { 1652 break; 1653 } 1654 if (dc->sar_5bit) { 1655 tcg_gen_shr_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]); 1656 } else { 1657 TCGv_i64 v = tcg_temp_new_i64(); 1658 tcg_gen_extu_i32_i64(v, cpu_R[RRR_T]); 1659 gen_shift(shr); 1660 } 1661 break; 1662 1663 case 10: /*SLL*/ 1664 if (!gen_window_check2(dc, RRR_R, RRR_S)) { 1665 break; 1666 } 1667 if (dc->sar_m32_5bit) { 1668 tcg_gen_shl_i32(cpu_R[RRR_R], cpu_R[RRR_S], dc->sar_m32); 1669 } else { 1670 TCGv_i64 v = tcg_temp_new_i64(); 1671 TCGv_i32 s = tcg_const_i32(32); 1672 tcg_gen_sub_i32(s, s, cpu_SR[SAR]); 1673 tcg_gen_andi_i32(s, s, 0x3f); 1674 tcg_gen_extu_i32_i64(v, cpu_R[RRR_S]); 1675 gen_shift_reg(shl, s); 1676 tcg_temp_free(s); 1677 } 1678 break; 1679 1680 case 11: /*SRA*/ 1681 if (!gen_window_check2(dc, RRR_R, RRR_T)) { 1682 break; 1683 } 1684 if (dc->sar_5bit) { 1685 tcg_gen_sar_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]); 1686 } else { 1687 TCGv_i64 v = tcg_temp_new_i64(); 1688 tcg_gen_ext_i32_i64(v, cpu_R[RRR_T]); 1689 gen_shift(sar); 1690 } 1691 break; 1692 #undef gen_shift 1693 #undef gen_shift_reg 1694 1695 case 12: /*MUL16U*/ 1696 HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL); 1697 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { 1698 TCGv_i32 v1 = tcg_temp_new_i32(); 1699 TCGv_i32 v2 = tcg_temp_new_i32(); 1700 tcg_gen_ext16u_i32(v1, cpu_R[RRR_S]); 1701 tcg_gen_ext16u_i32(v2, cpu_R[RRR_T]); 1702 tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2); 1703 tcg_temp_free(v2); 1704 tcg_temp_free(v1); 1705 } 1706 break; 1707 1708 case 13: /*MUL16S*/ 1709 HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL); 1710 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { 1711 TCGv_i32 v1 = tcg_temp_new_i32(); 1712 TCGv_i32 v2 = tcg_temp_new_i32(); 1713 tcg_gen_ext16s_i32(v1, cpu_R[RRR_S]); 1714 tcg_gen_ext16s_i32(v2, cpu_R[RRR_T]); 1715 tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2); 1716 tcg_temp_free(v2); 1717 tcg_temp_free(v1); 1718 } 1719 break; 1720 1721 default: /*reserved*/ 1722 RESERVED(); 1723 break; 1724 } 1725 break; 1726 1727 case 2: /*RST2*/ 1728 if (OP2 >= 8 && !gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { 1729 break; 1730 } 1731 1732 if (OP2 >= 12) { 1733 HAS_OPTION(XTENSA_OPTION_32_BIT_IDIV); 1734 TCGLabel *label = gen_new_label(); 1735 tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0, label); 1736 gen_exception_cause(dc, INTEGER_DIVIDE_BY_ZERO_CAUSE); 1737 gen_set_label(label); 1738 } 1739 1740 switch (OP2) { 1741 #define BOOLEAN_LOGIC(fn, r, s, t) \ 1742 do { \ 1743 HAS_OPTION(XTENSA_OPTION_BOOLEAN); \ 1744 TCGv_i32 tmp1 = tcg_temp_new_i32(); \ 1745 TCGv_i32 tmp2 = tcg_temp_new_i32(); \ 1746 \ 1747 tcg_gen_shri_i32(tmp1, cpu_SR[BR], s); \ 1748 tcg_gen_shri_i32(tmp2, cpu_SR[BR], t); \ 1749 tcg_gen_##fn##_i32(tmp1, tmp1, tmp2); \ 1750 tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR], tmp1, r, 1); \ 1751 tcg_temp_free(tmp1); \ 1752 tcg_temp_free(tmp2); \ 1753 } while (0) 1754 1755 case 0: /*ANDBp*/ 1756 BOOLEAN_LOGIC(and, RRR_R, RRR_S, RRR_T); 1757 break; 1758 1759 case 1: /*ANDBCp*/ 1760 BOOLEAN_LOGIC(andc, RRR_R, RRR_S, RRR_T); 1761 break; 1762 1763 case 2: /*ORBp*/ 1764 BOOLEAN_LOGIC(or, RRR_R, RRR_S, RRR_T); 1765 break; 1766 1767 case 3: /*ORBCp*/ 1768 BOOLEAN_LOGIC(orc, RRR_R, RRR_S, RRR_T); 1769 break; 1770 1771 case 4: /*XORBp*/ 1772 BOOLEAN_LOGIC(xor, RRR_R, RRR_S, RRR_T); 1773 break; 1774 1775 #undef BOOLEAN_LOGIC 1776 1777 case 8: /*MULLi*/ 1778 HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL); 1779 tcg_gen_mul_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); 1780 break; 1781 1782 case 10: /*MULUHi*/ 1783 case 11: /*MULSHi*/ 1784 HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL_HIGH); 1785 { 1786 TCGv lo = tcg_temp_new(); 1787 1788 if (OP2 == 10) { 1789 tcg_gen_mulu2_i32(lo, cpu_R[RRR_R], 1790 cpu_R[RRR_S], cpu_R[RRR_T]); 1791 } else { 1792 tcg_gen_muls2_i32(lo, cpu_R[RRR_R], 1793 cpu_R[RRR_S], cpu_R[RRR_T]); 1794 } 1795 tcg_temp_free(lo); 1796 } 1797 break; 1798 1799 case 12: /*QUOUi*/ 1800 tcg_gen_divu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); 1801 break; 1802 1803 case 13: /*QUOSi*/ 1804 case 15: /*REMSi*/ 1805 { 1806 TCGLabel *label1 = gen_new_label(); 1807 TCGLabel *label2 = gen_new_label(); 1808 1809 tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_S], 0x80000000, 1810 label1); 1811 tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0xffffffff, 1812 label1); 1813 tcg_gen_movi_i32(cpu_R[RRR_R], 1814 OP2 == 13 ? 0x80000000 : 0); 1815 tcg_gen_br(label2); 1816 gen_set_label(label1); 1817 if (OP2 == 13) { 1818 tcg_gen_div_i32(cpu_R[RRR_R], 1819 cpu_R[RRR_S], cpu_R[RRR_T]); 1820 } else { 1821 tcg_gen_rem_i32(cpu_R[RRR_R], 1822 cpu_R[RRR_S], cpu_R[RRR_T]); 1823 } 1824 gen_set_label(label2); 1825 } 1826 break; 1827 1828 case 14: /*REMUi*/ 1829 tcg_gen_remu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); 1830 break; 1831 1832 default: /*reserved*/ 1833 RESERVED(); 1834 break; 1835 } 1836 break; 1837 1838 case 3: /*RST3*/ 1839 switch (OP2) { 1840 case 0: /*RSR*/ 1841 if (gen_check_sr(dc, RSR_SR, SR_R) && 1842 (RSR_SR < 64 || gen_check_privilege(dc)) && 1843 gen_window_check1(dc, RRR_T)) { 1844 if (gen_rsr(dc, cpu_R[RRR_T], RSR_SR)) { 1845 gen_jumpi_check_loop_end(dc, 0); 1846 } 1847 } 1848 break; 1849 1850 case 1: /*WSR*/ 1851 if (gen_check_sr(dc, RSR_SR, SR_W) && 1852 (RSR_SR < 64 || gen_check_privilege(dc)) && 1853 gen_window_check1(dc, RRR_T)) { 1854 gen_wsr(dc, RSR_SR, cpu_R[RRR_T]); 1855 } 1856 break; 1857 1858 case 2: /*SEXTu*/ 1859 HAS_OPTION(XTENSA_OPTION_MISC_OP_SEXT); 1860 if (gen_window_check2(dc, RRR_R, RRR_S)) { 1861 int shift = 24 - RRR_T; 1862 1863 if (shift == 24) { 1864 tcg_gen_ext8s_i32(cpu_R[RRR_R], cpu_R[RRR_S]); 1865 } else if (shift == 16) { 1866 tcg_gen_ext16s_i32(cpu_R[RRR_R], cpu_R[RRR_S]); 1867 } else { 1868 TCGv_i32 tmp = tcg_temp_new_i32(); 1869 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], shift); 1870 tcg_gen_sari_i32(cpu_R[RRR_R], tmp, shift); 1871 tcg_temp_free(tmp); 1872 } 1873 } 1874 break; 1875 1876 case 3: /*CLAMPSu*/ 1877 HAS_OPTION(XTENSA_OPTION_MISC_OP_CLAMPS); 1878 if (gen_window_check2(dc, RRR_R, RRR_S)) { 1879 TCGv_i32 tmp1 = tcg_temp_new_i32(); 1880 TCGv_i32 tmp2 = tcg_temp_new_i32(); 1881 TCGv_i32 zero = tcg_const_i32(0); 1882 1883 tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 24 - RRR_T); 1884 tcg_gen_xor_i32(tmp2, tmp1, cpu_R[RRR_S]); 1885 tcg_gen_andi_i32(tmp2, tmp2, 0xffffffff << (RRR_T + 7)); 1886 1887 tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 31); 1888 tcg_gen_xori_i32(tmp1, tmp1, 0xffffffff >> (25 - RRR_T)); 1889 1890 tcg_gen_movcond_i32(TCG_COND_EQ, cpu_R[RRR_R], tmp2, zero, 1891 cpu_R[RRR_S], tmp1); 1892 tcg_temp_free(tmp1); 1893 tcg_temp_free(tmp2); 1894 tcg_temp_free(zero); 1895 } 1896 break; 1897 1898 case 4: /*MINu*/ 1899 case 5: /*MAXu*/ 1900 case 6: /*MINUu*/ 1901 case 7: /*MAXUu*/ 1902 HAS_OPTION(XTENSA_OPTION_MISC_OP_MINMAX); 1903 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { 1904 static const TCGCond cond[] = { 1905 TCG_COND_LE, 1906 TCG_COND_GE, 1907 TCG_COND_LEU, 1908 TCG_COND_GEU 1909 }; 1910 tcg_gen_movcond_i32(cond[OP2 - 4], cpu_R[RRR_R], 1911 cpu_R[RRR_S], cpu_R[RRR_T], 1912 cpu_R[RRR_S], cpu_R[RRR_T]); 1913 } 1914 break; 1915 1916 case 8: /*MOVEQZ*/ 1917 case 9: /*MOVNEZ*/ 1918 case 10: /*MOVLTZ*/ 1919 case 11: /*MOVGEZ*/ 1920 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { 1921 static const TCGCond cond[] = { 1922 TCG_COND_EQ, 1923 TCG_COND_NE, 1924 TCG_COND_LT, 1925 TCG_COND_GE, 1926 }; 1927 TCGv_i32 zero = tcg_const_i32(0); 1928 1929 tcg_gen_movcond_i32(cond[OP2 - 8], cpu_R[RRR_R], 1930 cpu_R[RRR_T], zero, cpu_R[RRR_S], cpu_R[RRR_R]); 1931 tcg_temp_free(zero); 1932 } 1933 break; 1934 1935 case 12: /*MOVFp*/ 1936 case 13: /*MOVTp*/ 1937 HAS_OPTION(XTENSA_OPTION_BOOLEAN); 1938 if (gen_window_check2(dc, RRR_R, RRR_S)) { 1939 TCGv_i32 zero = tcg_const_i32(0); 1940 TCGv_i32 tmp = tcg_temp_new_i32(); 1941 1942 tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T); 1943 tcg_gen_movcond_i32(OP2 & 1 ? TCG_COND_NE : TCG_COND_EQ, 1944 cpu_R[RRR_R], tmp, zero, 1945 cpu_R[RRR_S], cpu_R[RRR_R]); 1946 1947 tcg_temp_free(tmp); 1948 tcg_temp_free(zero); 1949 } 1950 break; 1951 1952 case 14: /*RUR*/ 1953 if (gen_window_check1(dc, RRR_R)) { 1954 int st = (RRR_S << 4) + RRR_T; 1955 if (uregnames[st].name) { 1956 tcg_gen_mov_i32(cpu_R[RRR_R], cpu_UR[st]); 1957 } else { 1958 qemu_log_mask(LOG_UNIMP, "RUR %d not implemented, ", st); 1959 TBD(); 1960 } 1961 } 1962 break; 1963 1964 case 15: /*WUR*/ 1965 if (gen_window_check1(dc, RRR_T)) { 1966 if (uregnames[RSR_SR].name) { 1967 gen_wur(RSR_SR, cpu_R[RRR_T]); 1968 } else { 1969 qemu_log_mask(LOG_UNIMP, "WUR %d not implemented, ", RSR_SR); 1970 TBD(); 1971 } 1972 } 1973 break; 1974 1975 } 1976 break; 1977 1978 case 4: /*EXTUI*/ 1979 case 5: 1980 if (gen_window_check2(dc, RRR_R, RRR_T)) { 1981 int shiftimm = RRR_S | ((OP1 & 1) << 4); 1982 int maskimm = (1 << (OP2 + 1)) - 1; 1983 1984 TCGv_i32 tmp = tcg_temp_new_i32(); 1985 tcg_gen_shri_i32(tmp, cpu_R[RRR_T], shiftimm); 1986 tcg_gen_andi_i32(cpu_R[RRR_R], tmp, maskimm); 1987 tcg_temp_free(tmp); 1988 } 1989 break; 1990 1991 case 6: /*CUST0*/ 1992 RESERVED(); 1993 break; 1994 1995 case 7: /*CUST1*/ 1996 RESERVED(); 1997 break; 1998 1999 case 8: /*LSCXp*/ 2000 switch (OP2) { 2001 case 0: /*LSXf*/ 2002 case 1: /*LSXUf*/ 2003 case 4: /*SSXf*/ 2004 case 5: /*SSXUf*/ 2005 HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); 2006 if (gen_window_check2(dc, RRR_S, RRR_T) && 2007 gen_check_cpenable(dc, 0)) { 2008 TCGv_i32 addr = tcg_temp_new_i32(); 2009 tcg_gen_add_i32(addr, cpu_R[RRR_S], cpu_R[RRR_T]); 2010 gen_load_store_alignment(dc, 2, addr, false); 2011 if (OP2 & 0x4) { 2012 tcg_gen_qemu_st32(cpu_FR[RRR_R], addr, dc->cring); 2013 } else { 2014 tcg_gen_qemu_ld32u(cpu_FR[RRR_R], addr, dc->cring); 2015 } 2016 if (OP2 & 0x1) { 2017 tcg_gen_mov_i32(cpu_R[RRR_S], addr); 2018 } 2019 tcg_temp_free(addr); 2020 } 2021 break; 2022 2023 default: /*reserved*/ 2024 RESERVED(); 2025 break; 2026 } 2027 break; 2028 2029 case 9: /*LSC4*/ 2030 if (!gen_window_check2(dc, RRR_S, RRR_T)) { 2031 break; 2032 } 2033 switch (OP2) { 2034 case 0: /*L32E*/ 2035 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); 2036 if (gen_check_privilege(dc) && 2037 gen_window_check2(dc, RRR_S, RRR_T)) { 2038 TCGv_i32 addr = tcg_temp_new_i32(); 2039 tcg_gen_addi_i32(addr, cpu_R[RRR_S], 2040 (0xffffffc0 | (RRR_R << 2))); 2041 tcg_gen_qemu_ld32u(cpu_R[RRR_T], addr, dc->ring); 2042 tcg_temp_free(addr); 2043 } 2044 break; 2045 2046 case 4: /*S32E*/ 2047 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); 2048 if (gen_check_privilege(dc) && 2049 gen_window_check2(dc, RRR_S, RRR_T)) { 2050 TCGv_i32 addr = tcg_temp_new_i32(); 2051 tcg_gen_addi_i32(addr, cpu_R[RRR_S], 2052 (0xffffffc0 | (RRR_R << 2))); 2053 tcg_gen_qemu_st32(cpu_R[RRR_T], addr, dc->ring); 2054 tcg_temp_free(addr); 2055 } 2056 break; 2057 2058 case 5: /*S32N*/ 2059 if (gen_window_check2(dc, RRI4_S, RRI4_T)) { 2060 TCGv_i32 addr = tcg_temp_new_i32(); 2061 2062 tcg_gen_addi_i32(addr, cpu_R[RRI4_S], RRI4_IMM4 << 2); 2063 gen_load_store_alignment(dc, 2, addr, false); 2064 tcg_gen_qemu_st32(cpu_R[RRI4_T], addr, dc->cring); 2065 tcg_temp_free(addr); 2066 } 2067 break; 2068 2069 default: 2070 RESERVED(); 2071 break; 2072 } 2073 break; 2074 2075 case 10: /*FP0*/ 2076 /*DEPBITS*/ 2077 if (option_enabled(dc, XTENSA_OPTION_DEPBITS)) { 2078 if (!gen_window_check2(dc, RRR_S, RRR_T)) { 2079 break; 2080 } 2081 tcg_gen_deposit_i32(cpu_R[RRR_T], cpu_R[RRR_T], cpu_R[RRR_S], 2082 OP2, RRR_R + 1); 2083 break; 2084 } 2085 2086 HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); 2087 switch (OP2) { 2088 case 0: /*ADD.Sf*/ 2089 if (gen_check_cpenable(dc, 0)) { 2090 gen_helper_add_s(cpu_FR[RRR_R], cpu_env, 2091 cpu_FR[RRR_S], cpu_FR[RRR_T]); 2092 } 2093 break; 2094 2095 case 1: /*SUB.Sf*/ 2096 if (gen_check_cpenable(dc, 0)) { 2097 gen_helper_sub_s(cpu_FR[RRR_R], cpu_env, 2098 cpu_FR[RRR_S], cpu_FR[RRR_T]); 2099 } 2100 break; 2101 2102 case 2: /*MUL.Sf*/ 2103 if (gen_check_cpenable(dc, 0)) { 2104 gen_helper_mul_s(cpu_FR[RRR_R], cpu_env, 2105 cpu_FR[RRR_S], cpu_FR[RRR_T]); 2106 } 2107 break; 2108 2109 case 4: /*MADD.Sf*/ 2110 if (gen_check_cpenable(dc, 0)) { 2111 gen_helper_madd_s(cpu_FR[RRR_R], cpu_env, 2112 cpu_FR[RRR_R], cpu_FR[RRR_S], 2113 cpu_FR[RRR_T]); 2114 } 2115 break; 2116 2117 case 5: /*MSUB.Sf*/ 2118 if (gen_check_cpenable(dc, 0)) { 2119 gen_helper_msub_s(cpu_FR[RRR_R], cpu_env, 2120 cpu_FR[RRR_R], cpu_FR[RRR_S], 2121 cpu_FR[RRR_T]); 2122 } 2123 break; 2124 2125 case 8: /*ROUND.Sf*/ 2126 case 9: /*TRUNC.Sf*/ 2127 case 10: /*FLOOR.Sf*/ 2128 case 11: /*CEIL.Sf*/ 2129 case 14: /*UTRUNC.Sf*/ 2130 if (gen_window_check1(dc, RRR_R) && 2131 gen_check_cpenable(dc, 0)) { 2132 static const unsigned rounding_mode_const[] = { 2133 float_round_nearest_even, 2134 float_round_to_zero, 2135 float_round_down, 2136 float_round_up, 2137 [6] = float_round_to_zero, 2138 }; 2139 TCGv_i32 rounding_mode = tcg_const_i32( 2140 rounding_mode_const[OP2 & 7]); 2141 TCGv_i32 scale = tcg_const_i32(RRR_T); 2142 2143 if (OP2 == 14) { 2144 gen_helper_ftoui(cpu_R[RRR_R], cpu_FR[RRR_S], 2145 rounding_mode, scale); 2146 } else { 2147 gen_helper_ftoi(cpu_R[RRR_R], cpu_FR[RRR_S], 2148 rounding_mode, scale); 2149 } 2150 2151 tcg_temp_free(rounding_mode); 2152 tcg_temp_free(scale); 2153 } 2154 break; 2155 2156 case 12: /*FLOAT.Sf*/ 2157 case 13: /*UFLOAT.Sf*/ 2158 if (gen_window_check1(dc, RRR_S) && 2159 gen_check_cpenable(dc, 0)) { 2160 TCGv_i32 scale = tcg_const_i32(-RRR_T); 2161 2162 if (OP2 == 13) { 2163 gen_helper_uitof(cpu_FR[RRR_R], cpu_env, 2164 cpu_R[RRR_S], scale); 2165 } else { 2166 gen_helper_itof(cpu_FR[RRR_R], cpu_env, 2167 cpu_R[RRR_S], scale); 2168 } 2169 tcg_temp_free(scale); 2170 } 2171 break; 2172 2173 case 15: /*FP1OP*/ 2174 switch (RRR_T) { 2175 case 0: /*MOV.Sf*/ 2176 if (gen_check_cpenable(dc, 0)) { 2177 tcg_gen_mov_i32(cpu_FR[RRR_R], cpu_FR[RRR_S]); 2178 } 2179 break; 2180 2181 case 1: /*ABS.Sf*/ 2182 if (gen_check_cpenable(dc, 0)) { 2183 gen_helper_abs_s(cpu_FR[RRR_R], cpu_FR[RRR_S]); 2184 } 2185 break; 2186 2187 case 4: /*RFRf*/ 2188 if (gen_window_check1(dc, RRR_R) && 2189 gen_check_cpenable(dc, 0)) { 2190 tcg_gen_mov_i32(cpu_R[RRR_R], cpu_FR[RRR_S]); 2191 } 2192 break; 2193 2194 case 5: /*WFRf*/ 2195 if (gen_window_check1(dc, RRR_S) && 2196 gen_check_cpenable(dc, 0)) { 2197 tcg_gen_mov_i32(cpu_FR[RRR_R], cpu_R[RRR_S]); 2198 } 2199 break; 2200 2201 case 6: /*NEG.Sf*/ 2202 if (gen_check_cpenable(dc, 0)) { 2203 gen_helper_neg_s(cpu_FR[RRR_R], cpu_FR[RRR_S]); 2204 } 2205 break; 2206 2207 default: /*reserved*/ 2208 RESERVED(); 2209 break; 2210 } 2211 break; 2212 2213 default: /*reserved*/ 2214 RESERVED(); 2215 break; 2216 } 2217 break; 2218 2219 case 11: /*FP1*/ 2220 /*DEPBITS*/ 2221 if (option_enabled(dc, XTENSA_OPTION_DEPBITS)) { 2222 if (!gen_window_check2(dc, RRR_S, RRR_T)) { 2223 break; 2224 } 2225 tcg_gen_deposit_i32(cpu_R[RRR_T], cpu_R[RRR_T], cpu_R[RRR_S], 2226 OP2 + 16, RRR_R + 1); 2227 break; 2228 } 2229 2230 HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); 2231 2232 #define gen_compare(rel, br, a, b) \ 2233 do { \ 2234 if (gen_check_cpenable(dc, 0)) { \ 2235 TCGv_i32 bit = tcg_const_i32(1 << br); \ 2236 \ 2237 gen_helper_##rel(cpu_env, bit, cpu_FR[a], cpu_FR[b]); \ 2238 tcg_temp_free(bit); \ 2239 } \ 2240 } while (0) 2241 2242 switch (OP2) { 2243 case 1: /*UN.Sf*/ 2244 gen_compare(un_s, RRR_R, RRR_S, RRR_T); 2245 break; 2246 2247 case 2: /*OEQ.Sf*/ 2248 gen_compare(oeq_s, RRR_R, RRR_S, RRR_T); 2249 break; 2250 2251 case 3: /*UEQ.Sf*/ 2252 gen_compare(ueq_s, RRR_R, RRR_S, RRR_T); 2253 break; 2254 2255 case 4: /*OLT.Sf*/ 2256 gen_compare(olt_s, RRR_R, RRR_S, RRR_T); 2257 break; 2258 2259 case 5: /*ULT.Sf*/ 2260 gen_compare(ult_s, RRR_R, RRR_S, RRR_T); 2261 break; 2262 2263 case 6: /*OLE.Sf*/ 2264 gen_compare(ole_s, RRR_R, RRR_S, RRR_T); 2265 break; 2266 2267 case 7: /*ULE.Sf*/ 2268 gen_compare(ule_s, RRR_R, RRR_S, RRR_T); 2269 break; 2270 2271 #undef gen_compare 2272 2273 case 8: /*MOVEQZ.Sf*/ 2274 case 9: /*MOVNEZ.Sf*/ 2275 case 10: /*MOVLTZ.Sf*/ 2276 case 11: /*MOVGEZ.Sf*/ 2277 if (gen_window_check1(dc, RRR_T) && 2278 gen_check_cpenable(dc, 0)) { 2279 static const TCGCond cond[] = { 2280 TCG_COND_EQ, 2281 TCG_COND_NE, 2282 TCG_COND_LT, 2283 TCG_COND_GE, 2284 }; 2285 TCGv_i32 zero = tcg_const_i32(0); 2286 2287 tcg_gen_movcond_i32(cond[OP2 - 8], cpu_FR[RRR_R], 2288 cpu_R[RRR_T], zero, cpu_FR[RRR_S], cpu_FR[RRR_R]); 2289 tcg_temp_free(zero); 2290 } 2291 break; 2292 2293 case 12: /*MOVF.Sf*/ 2294 case 13: /*MOVT.Sf*/ 2295 HAS_OPTION(XTENSA_OPTION_BOOLEAN); 2296 if (gen_check_cpenable(dc, 0)) { 2297 TCGv_i32 zero = tcg_const_i32(0); 2298 TCGv_i32 tmp = tcg_temp_new_i32(); 2299 2300 tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T); 2301 tcg_gen_movcond_i32(OP2 & 1 ? TCG_COND_NE : TCG_COND_EQ, 2302 cpu_FR[RRR_R], tmp, zero, 2303 cpu_FR[RRR_S], cpu_FR[RRR_R]); 2304 2305 tcg_temp_free(tmp); 2306 tcg_temp_free(zero); 2307 } 2308 break; 2309 2310 default: /*reserved*/ 2311 RESERVED(); 2312 break; 2313 } 2314 break; 2315 2316 default: /*reserved*/ 2317 RESERVED(); 2318 break; 2319 } 2320 break; 2321 2322 case 1: /*L32R*/ 2323 if (gen_window_check1(dc, RRR_T)) { 2324 TCGv_i32 tmp = tcg_const_i32( 2325 ((dc->tb->flags & XTENSA_TBFLAG_LITBASE) ? 2326 0 : ((dc->pc + 3) & ~3)) + 2327 (0xfffc0000 | (RI16_IMM16 << 2))); 2328 2329 if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) { 2330 tcg_gen_add_i32(tmp, tmp, dc->litbase); 2331 } 2332 tcg_gen_qemu_ld32u(cpu_R[RRR_T], tmp, dc->cring); 2333 tcg_temp_free(tmp); 2334 } 2335 break; 2336 2337 case 2: /*LSAI*/ 2338 #define gen_load_store(type, shift) do { \ 2339 if (gen_window_check2(dc, RRI8_S, RRI8_T)) { \ 2340 TCGv_i32 addr = tcg_temp_new_i32(); \ 2341 \ 2342 tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << shift); \ 2343 if (shift) { \ 2344 gen_load_store_alignment(dc, shift, addr, false); \ 2345 } \ 2346 tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \ 2347 tcg_temp_free(addr); \ 2348 } \ 2349 } while (0) 2350 2351 switch (RRI8_R) { 2352 case 0: /*L8UI*/ 2353 gen_load_store(ld8u, 0); 2354 break; 2355 2356 case 1: /*L16UI*/ 2357 gen_load_store(ld16u, 1); 2358 break; 2359 2360 case 2: /*L32I*/ 2361 gen_load_store(ld32u, 2); 2362 break; 2363 2364 case 4: /*S8I*/ 2365 gen_load_store(st8, 0); 2366 break; 2367 2368 case 5: /*S16I*/ 2369 gen_load_store(st16, 1); 2370 break; 2371 2372 case 6: /*S32I*/ 2373 gen_load_store(st32, 2); 2374 break; 2375 2376 #define gen_dcache_hit_test(w, shift) do { \ 2377 if (gen_window_check1(dc, RRI##w##_S)) { \ 2378 TCGv_i32 addr = tcg_temp_new_i32(); \ 2379 TCGv_i32 res = tcg_temp_new_i32(); \ 2380 tcg_gen_addi_i32(addr, cpu_R[RRI##w##_S], \ 2381 RRI##w##_IMM##w << shift); \ 2382 tcg_gen_qemu_ld8u(res, addr, dc->cring); \ 2383 tcg_temp_free(addr); \ 2384 tcg_temp_free(res); \ 2385 } \ 2386 } while (0) 2387 2388 #define gen_dcache_hit_test4() gen_dcache_hit_test(4, 4) 2389 #define gen_dcache_hit_test8() gen_dcache_hit_test(8, 2) 2390 2391 case 7: /*CACHEc*/ 2392 if (RRI8_T < 8) { 2393 HAS_OPTION(XTENSA_OPTION_DCACHE); 2394 } 2395 2396 switch (RRI8_T) { 2397 case 0: /*DPFRc*/ 2398 gen_window_check1(dc, RRI8_S); 2399 break; 2400 2401 case 1: /*DPFWc*/ 2402 gen_window_check1(dc, RRI8_S); 2403 break; 2404 2405 case 2: /*DPFROc*/ 2406 gen_window_check1(dc, RRI8_S); 2407 break; 2408 2409 case 3: /*DPFWOc*/ 2410 gen_window_check1(dc, RRI8_S); 2411 break; 2412 2413 case 4: /*DHWBc*/ 2414 gen_dcache_hit_test8(); 2415 break; 2416 2417 case 5: /*DHWBIc*/ 2418 gen_dcache_hit_test8(); 2419 break; 2420 2421 case 6: /*DHIc*/ 2422 if (gen_check_privilege(dc)) { 2423 gen_dcache_hit_test8(); 2424 } 2425 break; 2426 2427 case 7: /*DIIc*/ 2428 if (gen_check_privilege(dc)) { 2429 gen_window_check1(dc, RRI8_S); 2430 } 2431 break; 2432 2433 case 8: /*DCEc*/ 2434 switch (OP1) { 2435 case 0: /*DPFLl*/ 2436 HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); 2437 if (gen_check_privilege(dc)) { 2438 gen_dcache_hit_test4(); 2439 } 2440 break; 2441 2442 case 2: /*DHUl*/ 2443 HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); 2444 if (gen_check_privilege(dc)) { 2445 gen_dcache_hit_test4(); 2446 } 2447 break; 2448 2449 case 3: /*DIUl*/ 2450 HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); 2451 if (gen_check_privilege(dc)) { 2452 gen_window_check1(dc, RRI4_S); 2453 } 2454 break; 2455 2456 case 4: /*DIWBc*/ 2457 HAS_OPTION(XTENSA_OPTION_DCACHE); 2458 if (gen_check_privilege(dc)) { 2459 gen_window_check1(dc, RRI4_S); 2460 } 2461 break; 2462 2463 case 5: /*DIWBIc*/ 2464 HAS_OPTION(XTENSA_OPTION_DCACHE); 2465 if (gen_check_privilege(dc)) { 2466 gen_window_check1(dc, RRI4_S); 2467 } 2468 break; 2469 2470 default: /*reserved*/ 2471 RESERVED(); 2472 break; 2473 2474 } 2475 break; 2476 2477 #undef gen_dcache_hit_test 2478 #undef gen_dcache_hit_test4 2479 #undef gen_dcache_hit_test8 2480 2481 #define gen_icache_hit_test(w, shift) do { \ 2482 if (gen_window_check1(dc, RRI##w##_S)) { \ 2483 TCGv_i32 addr = tcg_temp_new_i32(); \ 2484 tcg_gen_movi_i32(cpu_pc, dc->pc); \ 2485 tcg_gen_addi_i32(addr, cpu_R[RRI##w##_S], \ 2486 RRI##w##_IMM##w << shift); \ 2487 gen_helper_itlb_hit_test(cpu_env, addr); \ 2488 tcg_temp_free(addr); \ 2489 }\ 2490 } while (0) 2491 2492 #define gen_icache_hit_test4() gen_icache_hit_test(4, 4) 2493 #define gen_icache_hit_test8() gen_icache_hit_test(8, 2) 2494 2495 case 12: /*IPFc*/ 2496 HAS_OPTION(XTENSA_OPTION_ICACHE); 2497 gen_window_check1(dc, RRI8_S); 2498 break; 2499 2500 case 13: /*ICEc*/ 2501 switch (OP1) { 2502 case 0: /*IPFLl*/ 2503 HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); 2504 if (gen_check_privilege(dc)) { 2505 gen_icache_hit_test4(); 2506 } 2507 break; 2508 2509 case 2: /*IHUl*/ 2510 HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); 2511 if (gen_check_privilege(dc)) { 2512 gen_icache_hit_test4(); 2513 } 2514 break; 2515 2516 case 3: /*IIUl*/ 2517 HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); 2518 if (gen_check_privilege(dc)) { 2519 gen_window_check1(dc, RRI4_S); 2520 } 2521 break; 2522 2523 default: /*reserved*/ 2524 RESERVED(); 2525 break; 2526 } 2527 break; 2528 2529 case 14: /*IHIc*/ 2530 HAS_OPTION(XTENSA_OPTION_ICACHE); 2531 gen_icache_hit_test8(); 2532 break; 2533 2534 case 15: /*IIIc*/ 2535 HAS_OPTION(XTENSA_OPTION_ICACHE); 2536 if (gen_check_privilege(dc)) { 2537 gen_window_check1(dc, RRI8_S); 2538 } 2539 break; 2540 2541 default: /*reserved*/ 2542 RESERVED(); 2543 break; 2544 } 2545 break; 2546 2547 #undef gen_icache_hit_test 2548 #undef gen_icache_hit_test4 2549 #undef gen_icache_hit_test8 2550 2551 case 9: /*L16SI*/ 2552 gen_load_store(ld16s, 1); 2553 break; 2554 #undef gen_load_store 2555 2556 case 10: /*MOVI*/ 2557 if (gen_window_check1(dc, RRI8_T)) { 2558 tcg_gen_movi_i32(cpu_R[RRI8_T], 2559 RRI8_IMM8 | (RRI8_S << 8) | 2560 ((RRI8_S & 0x8) ? 0xfffff000 : 0)); 2561 } 2562 break; 2563 2564 #define gen_load_store_no_hw_align(type) do { \ 2565 if (gen_window_check2(dc, RRI8_S, RRI8_T)) { \ 2566 TCGv_i32 addr = tcg_temp_local_new_i32(); \ 2567 tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); \ 2568 gen_load_store_alignment(dc, 2, addr, true); \ 2569 tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \ 2570 tcg_temp_free(addr); \ 2571 } \ 2572 } while (0) 2573 2574 case 11: /*L32AIy*/ 2575 HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO); 2576 gen_load_store_no_hw_align(ld32u); /*TODO acquire?*/ 2577 break; 2578 2579 case 12: /*ADDI*/ 2580 if (gen_window_check2(dc, RRI8_S, RRI8_T)) { 2581 tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE); 2582 } 2583 break; 2584 2585 case 13: /*ADDMI*/ 2586 if (gen_window_check2(dc, RRI8_S, RRI8_T)) { 2587 tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], 2588 RRI8_IMM8_SE << 8); 2589 } 2590 break; 2591 2592 case 14: /*S32C1Iy*/ 2593 HAS_OPTION(XTENSA_OPTION_CONDITIONAL_STORE); 2594 if (gen_window_check2(dc, RRI8_S, RRI8_T)) { 2595 TCGLabel *label = gen_new_label(); 2596 TCGv_i32 tmp = tcg_temp_local_new_i32(); 2597 TCGv_i32 addr = tcg_temp_local_new_i32(); 2598 TCGv_i32 tpc; 2599 2600 tcg_gen_mov_i32(tmp, cpu_R[RRI8_T]); 2601 tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); 2602 gen_load_store_alignment(dc, 2, addr, true); 2603 2604 tpc = tcg_const_i32(dc->pc); 2605 gen_helper_check_atomctl(cpu_env, tpc, addr); 2606 tcg_gen_qemu_ld32u(cpu_R[RRI8_T], addr, dc->cring); 2607 tcg_gen_brcond_i32(TCG_COND_NE, cpu_R[RRI8_T], 2608 cpu_SR[SCOMPARE1], label); 2609 2610 tcg_gen_qemu_st32(tmp, addr, dc->cring); 2611 2612 gen_set_label(label); 2613 tcg_temp_free(tpc); 2614 tcg_temp_free(addr); 2615 tcg_temp_free(tmp); 2616 } 2617 break; 2618 2619 case 15: /*S32RIy*/ 2620 HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO); 2621 gen_load_store_no_hw_align(st32); /*TODO release?*/ 2622 break; 2623 #undef gen_load_store_no_hw_align 2624 2625 default: /*reserved*/ 2626 RESERVED(); 2627 break; 2628 } 2629 break; 2630 2631 case 3: /*LSCIp*/ 2632 switch (RRI8_R) { 2633 case 0: /*LSIf*/ 2634 case 4: /*SSIf*/ 2635 case 8: /*LSIUf*/ 2636 case 12: /*SSIUf*/ 2637 HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); 2638 if (gen_window_check1(dc, RRI8_S) && 2639 gen_check_cpenable(dc, 0)) { 2640 TCGv_i32 addr = tcg_temp_new_i32(); 2641 tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); 2642 gen_load_store_alignment(dc, 2, addr, false); 2643 if (RRI8_R & 0x4) { 2644 tcg_gen_qemu_st32(cpu_FR[RRI8_T], addr, dc->cring); 2645 } else { 2646 tcg_gen_qemu_ld32u(cpu_FR[RRI8_T], addr, dc->cring); 2647 } 2648 if (RRI8_R & 0x8) { 2649 tcg_gen_mov_i32(cpu_R[RRI8_S], addr); 2650 } 2651 tcg_temp_free(addr); 2652 } 2653 break; 2654 2655 default: /*reserved*/ 2656 RESERVED(); 2657 break; 2658 } 2659 break; 2660 2661 case 4: /*MAC16d*/ 2662 HAS_OPTION(XTENSA_OPTION_MAC16); 2663 { 2664 enum { 2665 MAC16_UMUL = 0x0, 2666 MAC16_MUL = 0x4, 2667 MAC16_MULA = 0x8, 2668 MAC16_MULS = 0xc, 2669 MAC16_NONE = 0xf, 2670 } op = OP1 & 0xc; 2671 bool is_m1_sr = (OP2 & 0x3) == 2; 2672 bool is_m2_sr = (OP2 & 0xc) == 0; 2673 uint32_t ld_offset = 0; 2674 2675 if (OP2 > 9) { 2676 RESERVED(); 2677 } 2678 2679 switch (OP2 & 2) { 2680 case 0: /*MACI?/MACC?*/ 2681 is_m1_sr = true; 2682 ld_offset = (OP2 & 1) ? -4 : 4; 2683 2684 if (OP2 >= 8) { /*MACI/MACC*/ 2685 if (OP1 == 0) { /*LDINC/LDDEC*/ 2686 op = MAC16_NONE; 2687 } else { 2688 RESERVED(); 2689 } 2690 } else if (op != MAC16_MULA) { /*MULA.*.*.LDINC/LDDEC*/ 2691 RESERVED(); 2692 } 2693 break; 2694 2695 case 2: /*MACD?/MACA?*/ 2696 if (op == MAC16_UMUL && OP2 != 7) { /*UMUL only in MACAA*/ 2697 RESERVED(); 2698 } 2699 break; 2700 } 2701 2702 if (op != MAC16_NONE) { 2703 if (!is_m1_sr && !gen_window_check1(dc, RRR_S)) { 2704 break; 2705 } 2706 if (!is_m2_sr && !gen_window_check1(dc, RRR_T)) { 2707 break; 2708 } 2709 } 2710 2711 if (ld_offset && !gen_window_check1(dc, RRR_S)) { 2712 break; 2713 } 2714 2715 { 2716 TCGv_i32 vaddr = tcg_temp_new_i32(); 2717 TCGv_i32 mem32 = tcg_temp_new_i32(); 2718 2719 if (ld_offset) { 2720 tcg_gen_addi_i32(vaddr, cpu_R[RRR_S], ld_offset); 2721 gen_load_store_alignment(dc, 2, vaddr, false); 2722 tcg_gen_qemu_ld32u(mem32, vaddr, dc->cring); 2723 } 2724 if (op != MAC16_NONE) { 2725 TCGv_i32 m1 = gen_mac16_m( 2726 is_m1_sr ? cpu_SR[MR + RRR_X] : cpu_R[RRR_S], 2727 OP1 & 1, op == MAC16_UMUL); 2728 TCGv_i32 m2 = gen_mac16_m( 2729 is_m2_sr ? cpu_SR[MR + 2 + RRR_Y] : cpu_R[RRR_T], 2730 OP1 & 2, op == MAC16_UMUL); 2731 2732 if (op == MAC16_MUL || op == MAC16_UMUL) { 2733 tcg_gen_mul_i32(cpu_SR[ACCLO], m1, m2); 2734 if (op == MAC16_UMUL) { 2735 tcg_gen_movi_i32(cpu_SR[ACCHI], 0); 2736 } else { 2737 tcg_gen_sari_i32(cpu_SR[ACCHI], cpu_SR[ACCLO], 31); 2738 } 2739 } else { 2740 TCGv_i32 lo = tcg_temp_new_i32(); 2741 TCGv_i32 hi = tcg_temp_new_i32(); 2742 2743 tcg_gen_mul_i32(lo, m1, m2); 2744 tcg_gen_sari_i32(hi, lo, 31); 2745 if (op == MAC16_MULA) { 2746 tcg_gen_add2_i32(cpu_SR[ACCLO], cpu_SR[ACCHI], 2747 cpu_SR[ACCLO], cpu_SR[ACCHI], 2748 lo, hi); 2749 } else { 2750 tcg_gen_sub2_i32(cpu_SR[ACCLO], cpu_SR[ACCHI], 2751 cpu_SR[ACCLO], cpu_SR[ACCHI], 2752 lo, hi); 2753 } 2754 tcg_gen_ext8s_i32(cpu_SR[ACCHI], cpu_SR[ACCHI]); 2755 2756 tcg_temp_free_i32(lo); 2757 tcg_temp_free_i32(hi); 2758 } 2759 tcg_temp_free(m1); 2760 tcg_temp_free(m2); 2761 } 2762 if (ld_offset) { 2763 tcg_gen_mov_i32(cpu_R[RRR_S], vaddr); 2764 tcg_gen_mov_i32(cpu_SR[MR + RRR_W], mem32); 2765 } 2766 tcg_temp_free(vaddr); 2767 tcg_temp_free(mem32); 2768 } 2769 } 2770 break; 2771 2772 case 5: /*CALLN*/ 2773 switch (CALL_N) { 2774 case 0: /*CALL0*/ 2775 tcg_gen_movi_i32(cpu_R[0], dc->next_pc); 2776 gen_jumpi(dc, (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0); 2777 break; 2778 2779 case 1: /*CALL4w*/ 2780 case 2: /*CALL8w*/ 2781 case 3: /*CALL12w*/ 2782 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); 2783 if (gen_window_check1(dc, CALL_N << 2)) { 2784 gen_callwi(dc, CALL_N, 2785 (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0); 2786 } 2787 break; 2788 } 2789 break; 2790 2791 case 6: /*SI*/ 2792 switch (CALL_N) { 2793 case 0: /*J*/ 2794 gen_jumpi(dc, dc->pc + 4 + CALL_OFFSET_SE, 0); 2795 break; 2796 2797 case 1: /*BZ*/ 2798 if (gen_window_check1(dc, BRI12_S)) { 2799 static const TCGCond cond[] = { 2800 TCG_COND_EQ, /*BEQZ*/ 2801 TCG_COND_NE, /*BNEZ*/ 2802 TCG_COND_LT, /*BLTZ*/ 2803 TCG_COND_GE, /*BGEZ*/ 2804 }; 2805 2806 gen_brcondi(dc, cond[BRI12_M & 3], cpu_R[BRI12_S], 0, 2807 4 + BRI12_IMM12_SE); 2808 } 2809 break; 2810 2811 case 2: /*BI0*/ 2812 if (gen_window_check1(dc, BRI8_S)) { 2813 static const TCGCond cond[] = { 2814 TCG_COND_EQ, /*BEQI*/ 2815 TCG_COND_NE, /*BNEI*/ 2816 TCG_COND_LT, /*BLTI*/ 2817 TCG_COND_GE, /*BGEI*/ 2818 }; 2819 2820 gen_brcondi(dc, cond[BRI8_M & 3], 2821 cpu_R[BRI8_S], B4CONST[BRI8_R], 4 + BRI8_IMM8_SE); 2822 } 2823 break; 2824 2825 case 3: /*BI1*/ 2826 switch (BRI8_M) { 2827 case 0: /*ENTRYw*/ 2828 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); 2829 { 2830 TCGv_i32 pc = tcg_const_i32(dc->pc); 2831 TCGv_i32 s = tcg_const_i32(BRI12_S); 2832 TCGv_i32 imm = tcg_const_i32(BRI12_IMM12); 2833 gen_helper_entry(cpu_env, pc, s, imm); 2834 tcg_temp_free(imm); 2835 tcg_temp_free(s); 2836 tcg_temp_free(pc); 2837 /* This can change tb->flags, so exit tb */ 2838 gen_jumpi_check_loop_end(dc, -1); 2839 } 2840 break; 2841 2842 case 1: /*B1*/ 2843 switch (BRI8_R) { 2844 case 0: /*BFp*/ 2845 case 1: /*BTp*/ 2846 HAS_OPTION(XTENSA_OPTION_BOOLEAN); 2847 { 2848 TCGv_i32 tmp = tcg_temp_new_i32(); 2849 tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRI8_S); 2850 gen_brcondi(dc, 2851 BRI8_R == 1 ? TCG_COND_NE : TCG_COND_EQ, 2852 tmp, 0, 4 + RRI8_IMM8_SE); 2853 tcg_temp_free(tmp); 2854 } 2855 break; 2856 2857 case 8: /*LOOP*/ 2858 case 9: /*LOOPNEZ*/ 2859 case 10: /*LOOPGTZ*/ 2860 HAS_OPTION(XTENSA_OPTION_LOOP); 2861 if (gen_window_check1(dc, RRI8_S)) { 2862 uint32_t lend = dc->pc + RRI8_IMM8 + 4; 2863 TCGv_i32 tmp = tcg_const_i32(lend); 2864 2865 tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_R[RRI8_S], 1); 2866 tcg_gen_movi_i32(cpu_SR[LBEG], dc->next_pc); 2867 gen_helper_wsr_lend(cpu_env, tmp); 2868 tcg_temp_free(tmp); 2869 2870 if (BRI8_R > 8) { 2871 TCGLabel *label = gen_new_label(); 2872 tcg_gen_brcondi_i32( 2873 BRI8_R == 9 ? TCG_COND_NE : TCG_COND_GT, 2874 cpu_R[RRI8_S], 0, label); 2875 gen_jumpi(dc, lend, 1); 2876 gen_set_label(label); 2877 } 2878 2879 gen_jumpi(dc, dc->next_pc, 0); 2880 } 2881 break; 2882 2883 default: /*reserved*/ 2884 RESERVED(); 2885 break; 2886 2887 } 2888 break; 2889 2890 case 2: /*BLTUI*/ 2891 case 3: /*BGEUI*/ 2892 if (gen_window_check1(dc, BRI8_S)) { 2893 gen_brcondi(dc, BRI8_M == 2 ? TCG_COND_LTU : TCG_COND_GEU, 2894 cpu_R[BRI8_S], B4CONSTU[BRI8_R], 2895 4 + BRI8_IMM8_SE); 2896 } 2897 break; 2898 } 2899 break; 2900 2901 } 2902 break; 2903 2904 case 7: /*B*/ 2905 { 2906 TCGCond eq_ne = (RRI8_R & 8) ? TCG_COND_NE : TCG_COND_EQ; 2907 2908 switch (RRI8_R & 7) { 2909 case 0: /*BNONE*/ /*BANY*/ 2910 if (gen_window_check2(dc, RRI8_S, RRI8_T)) { 2911 TCGv_i32 tmp = tcg_temp_new_i32(); 2912 tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]); 2913 gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); 2914 tcg_temp_free(tmp); 2915 } 2916 break; 2917 2918 case 1: /*BEQ*/ /*BNE*/ 2919 case 2: /*BLT*/ /*BGE*/ 2920 case 3: /*BLTU*/ /*BGEU*/ 2921 if (gen_window_check2(dc, RRI8_S, RRI8_T)) { 2922 static const TCGCond cond[] = { 2923 [1] = TCG_COND_EQ, 2924 [2] = TCG_COND_LT, 2925 [3] = TCG_COND_LTU, 2926 [9] = TCG_COND_NE, 2927 [10] = TCG_COND_GE, 2928 [11] = TCG_COND_GEU, 2929 }; 2930 gen_brcond(dc, cond[RRI8_R], cpu_R[RRI8_S], cpu_R[RRI8_T], 2931 4 + RRI8_IMM8_SE); 2932 } 2933 break; 2934 2935 case 4: /*BALL*/ /*BNALL*/ 2936 if (gen_window_check2(dc, RRI8_S, RRI8_T)) { 2937 TCGv_i32 tmp = tcg_temp_new_i32(); 2938 tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]); 2939 gen_brcond(dc, eq_ne, tmp, cpu_R[RRI8_T], 2940 4 + RRI8_IMM8_SE); 2941 tcg_temp_free(tmp); 2942 } 2943 break; 2944 2945 case 5: /*BBC*/ /*BBS*/ 2946 if (gen_window_check2(dc, RRI8_S, RRI8_T)) { 2947 #ifdef TARGET_WORDS_BIGENDIAN 2948 TCGv_i32 bit = tcg_const_i32(0x80000000); 2949 #else 2950 TCGv_i32 bit = tcg_const_i32(0x00000001); 2951 #endif 2952 TCGv_i32 tmp = tcg_temp_new_i32(); 2953 tcg_gen_andi_i32(tmp, cpu_R[RRI8_T], 0x1f); 2954 #ifdef TARGET_WORDS_BIGENDIAN 2955 tcg_gen_shr_i32(bit, bit, tmp); 2956 #else 2957 tcg_gen_shl_i32(bit, bit, tmp); 2958 #endif 2959 tcg_gen_and_i32(tmp, cpu_R[RRI8_S], bit); 2960 gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); 2961 tcg_temp_free(tmp); 2962 tcg_temp_free(bit); 2963 } 2964 break; 2965 2966 case 6: /*BBCI*/ /*BBSI*/ 2967 case 7: 2968 if (gen_window_check1(dc, RRI8_S)) { 2969 TCGv_i32 tmp = tcg_temp_new_i32(); 2970 tcg_gen_andi_i32(tmp, cpu_R[RRI8_S], 2971 #ifdef TARGET_WORDS_BIGENDIAN 2972 0x80000000 >> (((RRI8_R & 1) << 4) | RRI8_T)); 2973 #else 2974 0x00000001 << (((RRI8_R & 1) << 4) | RRI8_T)); 2975 #endif 2976 gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); 2977 tcg_temp_free(tmp); 2978 } 2979 break; 2980 2981 } 2982 } 2983 break; 2984 2985 #define gen_narrow_load_store(type) do { \ 2986 if (gen_window_check2(dc, RRRN_S, RRRN_T)) { \ 2987 TCGv_i32 addr = tcg_temp_new_i32(); \ 2988 tcg_gen_addi_i32(addr, cpu_R[RRRN_S], RRRN_R << 2); \ 2989 gen_load_store_alignment(dc, 2, addr, false); \ 2990 tcg_gen_qemu_##type(cpu_R[RRRN_T], addr, dc->cring); \ 2991 tcg_temp_free(addr); \ 2992 } \ 2993 } while (0) 2994 2995 case 8: /*L32I.Nn*/ 2996 gen_narrow_load_store(ld32u); 2997 break; 2998 2999 case 9: /*S32I.Nn*/ 3000 gen_narrow_load_store(st32); 3001 break; 3002 #undef gen_narrow_load_store 3003 3004 case 10: /*ADD.Nn*/ 3005 if (gen_window_check3(dc, RRRN_R, RRRN_S, RRRN_T)) { 3006 tcg_gen_add_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], cpu_R[RRRN_T]); 3007 } 3008 break; 3009 3010 case 11: /*ADDI.Nn*/ 3011 if (gen_window_check2(dc, RRRN_R, RRRN_S)) { 3012 tcg_gen_addi_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], 3013 RRRN_T ? RRRN_T : -1); 3014 } 3015 break; 3016 3017 case 12: /*ST2n*/ 3018 if (!gen_window_check1(dc, RRRN_S)) { 3019 break; 3020 } 3021 if (RRRN_T < 8) { /*MOVI.Nn*/ 3022 tcg_gen_movi_i32(cpu_R[RRRN_S], 3023 RRRN_R | (RRRN_T << 4) | 3024 ((RRRN_T & 6) == 6 ? 0xffffff80 : 0)); 3025 } else { /*BEQZ.Nn*/ /*BNEZ.Nn*/ 3026 TCGCond eq_ne = (RRRN_T & 4) ? TCG_COND_NE : TCG_COND_EQ; 3027 3028 gen_brcondi(dc, eq_ne, cpu_R[RRRN_S], 0, 3029 4 + (RRRN_R | ((RRRN_T & 3) << 4))); 3030 } 3031 break; 3032 3033 case 13: /*ST3n*/ 3034 switch (RRRN_R) { 3035 case 0: /*MOV.Nn*/ 3036 if (gen_window_check2(dc, RRRN_S, RRRN_T)) { 3037 tcg_gen_mov_i32(cpu_R[RRRN_T], cpu_R[RRRN_S]); 3038 } 3039 break; 3040 3041 case 15: /*S3*/ 3042 switch (RRRN_T) { 3043 case 0: /*RET.Nn*/ 3044 gen_jump(dc, cpu_R[0]); 3045 break; 3046 3047 case 1: /*RETW.Nn*/ 3048 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); 3049 { 3050 TCGv_i32 tmp = tcg_const_i32(dc->pc); 3051 gen_helper_retw(tmp, cpu_env, tmp); 3052 gen_jump(dc, tmp); 3053 tcg_temp_free(tmp); 3054 } 3055 break; 3056 3057 case 2: /*BREAK.Nn*/ 3058 HAS_OPTION(XTENSA_OPTION_DEBUG); 3059 if (dc->debug) { 3060 gen_debug_exception(dc, DEBUGCAUSE_BN); 3061 } 3062 break; 3063 3064 case 3: /*NOP.Nn*/ 3065 break; 3066 3067 case 6: /*ILL.Nn*/ 3068 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); 3069 break; 3070 3071 default: /*reserved*/ 3072 RESERVED(); 3073 break; 3074 } 3075 break; 3076 3077 default: /*reserved*/ 3078 RESERVED(); 3079 break; 3080 } 3081 break; 3082 3083 default: /*reserved*/ 3084 RESERVED(); 3085 break; 3086 } 3087 3088 if (dc->is_jmp == DISAS_NEXT) { 3089 gen_check_loop_end(dc, 0); 3090 } 3091 dc->pc = dc->next_pc; 3092 3093 return; 3094 3095 invalid_opcode: 3096 qemu_log_mask(LOG_GUEST_ERROR, "INVALID(pc = %08x)\n", dc->pc); 3097 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); 3098 #undef HAS_OPTION 3099 } 3100 3101 static inline unsigned xtensa_insn_len(CPUXtensaState *env, DisasContext *dc) 3102 { 3103 uint8_t b0 = cpu_ldub_code(env, dc->pc); 3104 return xtensa_op0_insn_len(OP0); 3105 } 3106 3107 static void gen_ibreak_check(CPUXtensaState *env, DisasContext *dc) 3108 { 3109 unsigned i; 3110 3111 for (i = 0; i < dc->config->nibreak; ++i) { 3112 if ((env->sregs[IBREAKENABLE] & (1 << i)) && 3113 env->sregs[IBREAKA + i] == dc->pc) { 3114 gen_debug_exception(dc, DEBUGCAUSE_IB); 3115 break; 3116 } 3117 } 3118 } 3119 3120 void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) 3121 { 3122 CPUXtensaState *env = cs->env_ptr; 3123 DisasContext dc; 3124 int insn_count = 0; 3125 int max_insns = tb->cflags & CF_COUNT_MASK; 3126 uint32_t pc_start = tb->pc; 3127 uint32_t next_page_start = 3128 (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; 3129 3130 if (max_insns == 0) { 3131 max_insns = CF_COUNT_MASK; 3132 } 3133 if (max_insns > TCG_MAX_INSNS) { 3134 max_insns = TCG_MAX_INSNS; 3135 } 3136 3137 dc.config = env->config; 3138 dc.singlestep_enabled = cs->singlestep_enabled; 3139 dc.tb = tb; 3140 dc.pc = pc_start; 3141 dc.ring = tb->flags & XTENSA_TBFLAG_RING_MASK; 3142 dc.cring = (tb->flags & XTENSA_TBFLAG_EXCM) ? 0 : dc.ring; 3143 dc.lbeg = env->sregs[LBEG]; 3144 dc.lend = env->sregs[LEND]; 3145 dc.is_jmp = DISAS_NEXT; 3146 dc.debug = tb->flags & XTENSA_TBFLAG_DEBUG; 3147 dc.icount = tb->flags & XTENSA_TBFLAG_ICOUNT; 3148 dc.cpenable = (tb->flags & XTENSA_TBFLAG_CPENABLE_MASK) >> 3149 XTENSA_TBFLAG_CPENABLE_SHIFT; 3150 dc.window = ((tb->flags & XTENSA_TBFLAG_WINDOW_MASK) >> 3151 XTENSA_TBFLAG_WINDOW_SHIFT); 3152 3153 init_litbase(&dc); 3154 init_sar_tracker(&dc); 3155 if (dc.icount) { 3156 dc.next_icount = tcg_temp_local_new_i32(); 3157 } 3158 3159 gen_tb_start(tb); 3160 3161 if ((tb->cflags & CF_USE_ICOUNT) && 3162 (tb->flags & XTENSA_TBFLAG_YIELD)) { 3163 tcg_gen_insn_start(dc.pc); 3164 ++insn_count; 3165 gen_exception(&dc, EXCP_YIELD); 3166 dc.is_jmp = DISAS_UPDATE; 3167 goto done; 3168 } 3169 if (tb->flags & XTENSA_TBFLAG_EXCEPTION) { 3170 tcg_gen_insn_start(dc.pc); 3171 ++insn_count; 3172 gen_exception(&dc, EXCP_DEBUG); 3173 dc.is_jmp = DISAS_UPDATE; 3174 goto done; 3175 } 3176 3177 do { 3178 tcg_gen_insn_start(dc.pc); 3179 ++insn_count; 3180 3181 if (unlikely(cpu_breakpoint_test(cs, dc.pc, BP_ANY))) { 3182 tcg_gen_movi_i32(cpu_pc, dc.pc); 3183 gen_exception(&dc, EXCP_DEBUG); 3184 dc.is_jmp = DISAS_UPDATE; 3185 /* The address covered by the breakpoint must be included in 3186 [tb->pc, tb->pc + tb->size) in order to for it to be 3187 properly cleared -- thus we increment the PC here so that 3188 the logic setting tb->size below does the right thing. */ 3189 dc.pc += 2; 3190 break; 3191 } 3192 3193 if (insn_count == max_insns && (tb->cflags & CF_LAST_IO)) { 3194 gen_io_start(); 3195 } 3196 3197 if (dc.icount) { 3198 TCGLabel *label = gen_new_label(); 3199 3200 tcg_gen_addi_i32(dc.next_icount, cpu_SR[ICOUNT], 1); 3201 tcg_gen_brcondi_i32(TCG_COND_NE, dc.next_icount, 0, label); 3202 tcg_gen_mov_i32(dc.next_icount, cpu_SR[ICOUNT]); 3203 if (dc.debug) { 3204 gen_debug_exception(&dc, DEBUGCAUSE_IC); 3205 } 3206 gen_set_label(label); 3207 } 3208 3209 if (dc.debug) { 3210 gen_ibreak_check(env, &dc); 3211 } 3212 3213 disas_xtensa_insn(env, &dc); 3214 if (dc.icount) { 3215 tcg_gen_mov_i32(cpu_SR[ICOUNT], dc.next_icount); 3216 } 3217 if (cs->singlestep_enabled) { 3218 tcg_gen_movi_i32(cpu_pc, dc.pc); 3219 gen_exception(&dc, EXCP_DEBUG); 3220 break; 3221 } 3222 } while (dc.is_jmp == DISAS_NEXT && 3223 insn_count < max_insns && 3224 dc.pc < next_page_start && 3225 dc.pc + xtensa_insn_len(env, &dc) <= next_page_start && 3226 !tcg_op_buf_full()); 3227 done: 3228 reset_litbase(&dc); 3229 reset_sar_tracker(&dc); 3230 if (dc.icount) { 3231 tcg_temp_free(dc.next_icount); 3232 } 3233 3234 if (tb->cflags & CF_LAST_IO) { 3235 gen_io_end(); 3236 } 3237 3238 if (dc.is_jmp == DISAS_NEXT) { 3239 gen_jumpi(&dc, dc.pc, 0); 3240 } 3241 gen_tb_end(tb, insn_count); 3242 3243 #ifdef DEBUG_DISAS 3244 if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM) 3245 && qemu_log_in_addr_range(pc_start)) { 3246 qemu_log_lock(); 3247 qemu_log("----------------\n"); 3248 qemu_log("IN: %s\n", lookup_symbol(pc_start)); 3249 log_target_disas(cs, pc_start, dc.pc - pc_start, 0); 3250 qemu_log("\n"); 3251 qemu_log_unlock(); 3252 } 3253 #endif 3254 tb->size = dc.pc - pc_start; 3255 tb->icount = insn_count; 3256 } 3257 3258 void xtensa_cpu_dump_state(CPUState *cs, FILE *f, 3259 fprintf_function cpu_fprintf, int flags) 3260 { 3261 XtensaCPU *cpu = XTENSA_CPU(cs); 3262 CPUXtensaState *env = &cpu->env; 3263 int i, j; 3264 3265 cpu_fprintf(f, "PC=%08x\n\n", env->pc); 3266 3267 for (i = j = 0; i < 256; ++i) { 3268 if (xtensa_option_bits_enabled(env->config, sregnames[i].opt_bits)) { 3269 cpu_fprintf(f, "%12s=%08x%c", sregnames[i].name, env->sregs[i], 3270 (j++ % 4) == 3 ? '\n' : ' '); 3271 } 3272 } 3273 3274 cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n"); 3275 3276 for (i = j = 0; i < 256; ++i) { 3277 if (xtensa_option_bits_enabled(env->config, uregnames[i].opt_bits)) { 3278 cpu_fprintf(f, "%s=%08x%c", uregnames[i].name, env->uregs[i], 3279 (j++ % 4) == 3 ? '\n' : ' '); 3280 } 3281 } 3282 3283 cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n"); 3284 3285 for (i = 0; i < 16; ++i) { 3286 cpu_fprintf(f, " A%02d=%08x%c", i, env->regs[i], 3287 (i % 4) == 3 ? '\n' : ' '); 3288 } 3289 3290 cpu_fprintf(f, "\n"); 3291 3292 for (i = 0; i < env->config->nareg; ++i) { 3293 cpu_fprintf(f, "AR%02d=%08x%c", i, env->phys_regs[i], 3294 (i % 4) == 3 ? '\n' : ' '); 3295 } 3296 3297 if (xtensa_option_enabled(env->config, XTENSA_OPTION_FP_COPROCESSOR)) { 3298 cpu_fprintf(f, "\n"); 3299 3300 for (i = 0; i < 16; ++i) { 3301 cpu_fprintf(f, "F%02d=%08x (%+10.8e)%c", i, 3302 float32_val(env->fregs[i].f32[FP_F32_LOW]), 3303 *(float *)(env->fregs[i].f32 + FP_F32_LOW), 3304 (i % 2) == 1 ? '\n' : ' '); 3305 } 3306 } 3307 } 3308 3309 void restore_state_to_opc(CPUXtensaState *env, TranslationBlock *tb, 3310 target_ulong *data) 3311 { 3312 env->pc = data[0]; 3313 } 3314