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[2001:470:27:1fa::2]) by smtp.gmail.com with ESMTPSA id h3sm1258383lfj.26.2017.11.03.20.46.13 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 03 Nov 2017 20:46:14 -0700 (PDT) From: Max Filippov To: qemu-devel@nongnu.org Date: Fri, 3 Nov 2017 20:45:14 -0700 Message-Id: <1509767121-26925-10-git-send-email-jcmvbkbc@gmail.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1509767121-26925-1-git-send-email-jcmvbkbc@gmail.com> References: <1509767121-26925-1-git-send-email-jcmvbkbc@gmail.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4010:c07::241 Subject: [Qemu-devel] [PATCH 09/16] target/xtensa: use libisa for instruction decoding X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Max Filippov , Richard Henderson Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Replace manual opcode analysis with libisa-based code. This makes it possible to support variable-encoding instructions of the core ISA, like const16, and will allow to support advanced Xtensa features, like FLIX and TIE. Signed-off-by: Max Filippov --- target/xtensa/cpu.h | 3 + target/xtensa/helper.c | 37 + target/xtensa/translate.c | 2223 ++------------------------------------------- 3 files changed, 124 insertions(+), 2139 deletions(-) diff --git a/target/xtensa/cpu.h b/target/xtensa/cpu.h index bd77a68a7aa4..d28249a2b37c 100644 --- a/target/xtensa/cpu.h +++ b/target/xtensa/cpu.h @@ -392,6 +392,9 @@ struct XtensaConfig { uint32_t configid[2]; void *isa_internal; + xtensa_isa isa; + XtensaOpcodeOps **opcode_ops; + const XtensaOpcodeTranslators **opcode_translators; uint32_t clock_freq_khz; diff --git a/target/xtensa/helper.c b/target/xtensa/helper.c index e8fba20918fe..baf671be5b12 100644 --- a/target/xtensa/helper.c +++ b/target/xtensa/helper.c @@ -52,10 +52,47 @@ static void xtensa_core_class_init(ObjectClass *oc, void *data) cc->gdb_num_core_regs = config->gdb_regmap.num_regs; } +static void init_libisa(XtensaConfig *config) +{ + unsigned i, j; + unsigned opcodes; + + config->isa = xtensa_isa_init(config->isa_internal, NULL, NULL); + assert(xtensa_isa_maxlength(config->isa) <= MAX_INSN_LENGTH); + opcodes = xtensa_isa_num_opcodes(config->isa); + config->opcode_ops = g_malloc_n(opcodes, sizeof(XtensaOpcodeOps *)); + + for (i = 0; i < opcodes; ++i) { + const char *opc_name = xtensa_opcode_name(config->isa, i); + XtensaOpcodeOps *ops = NULL; + + assert(xtensa_opcode_num_operands(config->isa, i) <= MAX_OPCODE_ARGS); + if (!config->opcode_translators) { + ops = xtensa_find_opcode_ops(&xtensa_core_opcodes, opc_name); + } else { + for (j = 0; !ops && config->opcode_translators[j]; ++j) { + ops = xtensa_find_opcode_ops(config->opcode_translators[j], + opc_name); + } + } +#ifdef DEBUG + if (ops == NULL) { + fprintf(stderr, + "opcode translator not found for %s's opcode '%s'\n", + config->name, opc_name); + } +#endif + config->opcode_ops[i] = ops; + } +} + void xtensa_finalize_config(XtensaConfig *config) { unsigned i, n = 0; + if (config->isa_internal) { + init_libisa(config); + } if (config->gdb_regmap.num_regs) { return; } diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c index f6a53cdfc28f..0460edf61389 100644 --- a/target/xtensa/translate.c +++ b/target/xtensa/translate.c @@ -77,6 +77,8 @@ typedef struct DisasContext { unsigned cpenable; uint32_t *raw_arg; + xtensa_insnbuf insnbuf; + xtensa_insnbuf slotbuf; } DisasContext; static TCGv_i32 cpu_pc; @@ -471,21 +473,21 @@ static void gen_jumpi_check_loop_end(DisasContext *dc, int slot) } static void gen_brcond(DisasContext *dc, TCGCond cond, - TCGv_i32 t0, TCGv_i32 t1, uint32_t offset) + TCGv_i32 t0, TCGv_i32 t1, uint32_t addr) { TCGLabel *label = gen_new_label(); tcg_gen_brcond_i32(cond, t0, t1, label); gen_jumpi_check_loop_end(dc, 0); gen_set_label(label); - gen_jumpi(dc, dc->pc + offset, 1); + gen_jumpi(dc, addr, 1); } static void gen_brcondi(DisasContext *dc, TCGCond cond, - TCGv_i32 t0, uint32_t t1, uint32_t offset) + TCGv_i32 t0, uint32_t t1, uint32_t addr) { TCGv_i32 tmp = tcg_const_i32(t1); - gen_brcond(dc, cond, t0, tmp, offset); + gen_brcond(dc, cond, t0, tmp, addr); tcg_temp_free(tmp); } @@ -947,2164 +949,98 @@ static TCGv_i32 gen_mac16_m(TCGv_i32 v, bool hi, bool is_unsigned) return m; } -static inline unsigned xtensa_op0_insn_len(unsigned op0) +static inline unsigned xtensa_op0_insn_len(DisasContext *dc, uint8_t op0) { - return op0 >= 8 ? 2 : 3; + return xtensa_isa_length_from_chars(dc->config->isa, &op0); } static void disas_xtensa_insn(CPUXtensaState *env, DisasContext *dc) { -#define HAS_OPTION_BITS(opt) do { \ - if (!option_bits_enabled(dc, opt)) { \ - qemu_log_mask(LOG_GUEST_ERROR, "Option is not enabled %s:%d\n", \ - __FILE__, __LINE__); \ - goto invalid_opcode; \ - } \ - } while (0) - -#define HAS_OPTION(opt) HAS_OPTION_BITS(XTENSA_OPTION_BIT(opt)) - -#define TBD() qemu_log_mask(LOG_UNIMP, "TBD(pc = %08x): %s:%d\n", dc->pc, __FILE__, __LINE__) -#define RESERVED() do { \ - qemu_log_mask(LOG_GUEST_ERROR, "RESERVED(pc = %08x, %02x%02x%02x): %s:%d\n", \ - dc->pc, b0, b1, b2, __FILE__, __LINE__); \ - goto invalid_opcode; \ - } while (0) - - -#ifdef TARGET_WORDS_BIGENDIAN -#define OP0 (((b0) & 0xf0) >> 4) -#define OP1 (((b2) & 0xf0) >> 4) -#define OP2 ((b2) & 0xf) -#define RRR_R ((b1) & 0xf) -#define RRR_S (((b1) & 0xf0) >> 4) -#define RRR_T ((b0) & 0xf) -#else -#define OP0 (((b0) & 0xf)) -#define OP1 (((b2) & 0xf)) -#define OP2 (((b2) & 0xf0) >> 4) -#define RRR_R (((b1) & 0xf0) >> 4) -#define RRR_S (((b1) & 0xf)) -#define RRR_T (((b0) & 0xf0) >> 4) -#endif -#define RRR_X ((RRR_R & 0x4) >> 2) -#define RRR_Y ((RRR_T & 0x4) >> 2) -#define RRR_W (RRR_R & 0x3) - -#define RRRN_R RRR_R -#define RRRN_S RRR_S -#define RRRN_T RRR_T - -#define RRI4_R RRR_R -#define RRI4_S RRR_S -#define RRI4_T RRR_T -#ifdef TARGET_WORDS_BIGENDIAN -#define RRI4_IMM4 ((b2) & 0xf) -#else -#define RRI4_IMM4 (((b2) & 0xf0) >> 4) -#endif - -#define RRI8_R RRR_R -#define RRI8_S RRR_S -#define RRI8_T RRR_T -#define RRI8_IMM8 (b2) -#define RRI8_IMM8_SE ((((b2) & 0x80) ? 0xffffff00 : 0) | RRI8_IMM8) - -#ifdef TARGET_WORDS_BIGENDIAN -#define RI16_IMM16 (((b1) << 8) | (b2)) -#else -#define RI16_IMM16 (((b2) << 8) | (b1)) -#endif - -#ifdef TARGET_WORDS_BIGENDIAN -#define CALL_N (((b0) & 0xc) >> 2) -#define CALL_OFFSET ((((b0) & 0x3) << 16) | ((b1) << 8) | (b2)) -#else -#define CALL_N (((b0) & 0x30) >> 4) -#define CALL_OFFSET ((((b0) & 0xc0) >> 6) | ((b1) << 2) | ((b2) << 10)) -#endif -#define CALL_OFFSET_SE \ - (((CALL_OFFSET & 0x20000) ? 0xfffc0000 : 0) | CALL_OFFSET) - -#define CALLX_N CALL_N -#ifdef TARGET_WORDS_BIGENDIAN -#define CALLX_M ((b0) & 0x3) -#else -#define CALLX_M (((b0) & 0xc0) >> 6) -#endif -#define CALLX_S RRR_S - -#define BRI12_M CALLX_M -#define BRI12_S RRR_S -#ifdef TARGET_WORDS_BIGENDIAN -#define BRI12_IMM12 ((((b1) & 0xf) << 8) | (b2)) -#else -#define BRI12_IMM12 ((((b1) & 0xf0) >> 4) | ((b2) << 4)) -#endif -#define BRI12_IMM12_SE (((BRI12_IMM12 & 0x800) ? 0xfffff000 : 0) | BRI12_IMM12) - -#define BRI8_M BRI12_M -#define BRI8_R RRI8_R -#define BRI8_S RRI8_S -#define BRI8_IMM8 RRI8_IMM8 -#define BRI8_IMM8_SE RRI8_IMM8_SE - -#define RSR_SR (b1) - - uint8_t b0 = cpu_ldub_code(env, dc->pc); - uint8_t b1 = cpu_ldub_code(env, dc->pc + 1); - uint8_t b2 = 0; - unsigned len = xtensa_op0_insn_len(OP0); - - static const uint32_t B4CONST[] = { - 0xffffffff, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256 - }; - - static const uint32_t B4CONSTU[] = { - 32768, 65536, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256 - }; - - switch (len) { - case 2: - HAS_OPTION(XTENSA_OPTION_CODE_DENSITY); - break; - - case 3: - b2 = cpu_ldub_code(env, dc->pc + 2); - break; + xtensa_isa isa = dc->config->isa; + unsigned char b[MAX_INSN_LENGTH] = {cpu_ldub_code(env, dc->pc)}; + unsigned len = xtensa_op0_insn_len(dc, b[0]); + xtensa_format fmt; + unsigned slot, slots; + unsigned i; - default: - RESERVED(); + if (len == XTENSA_UNDEFINED) { + qemu_log_mask(LOG_GUEST_ERROR, + "unknown instruction length (pc = %08x)\n", + dc->pc); + gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); + return; } - dc->next_pc = dc->pc + len; - - switch (OP0) { - case 0: /*QRST*/ - switch (OP1) { - case 0: /*RST0*/ - switch (OP2) { - case 0: /*ST0*/ - if ((RRR_R & 0xc) == 0x8) { - HAS_OPTION(XTENSA_OPTION_BOOLEAN); - } - - switch (RRR_R) { - case 0: /*SNM0*/ - switch (CALLX_M) { - case 0: /*ILL*/ - gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); - break; - - case 1: /*reserved*/ - RESERVED(); - break; - - case 2: /*JR*/ - switch (CALLX_N) { - case 0: /*RET*/ - case 2: /*JX*/ - if (gen_window_check1(dc, CALLX_S)) { - gen_jump(dc, cpu_R[CALLX_S]); - } - break; - - case 1: /*RETWw*/ - HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); - { - TCGv_i32 tmp = tcg_const_i32(dc->pc); - gen_helper_retw(tmp, cpu_env, tmp); - gen_jump(dc, tmp); - tcg_temp_free(tmp); - } - break; - - case 3: /*reserved*/ - RESERVED(); - break; - } - break; - - case 3: /*CALLX*/ - if (!gen_window_check2(dc, CALLX_S, CALLX_N << 2)) { - break; - } - switch (CALLX_N) { - case 0: /*CALLX0*/ - { - TCGv_i32 tmp = tcg_temp_new_i32(); - tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]); - tcg_gen_movi_i32(cpu_R[0], dc->next_pc); - gen_jump(dc, tmp); - tcg_temp_free(tmp); - } - break; - - case 1: /*CALLX4w*/ - case 2: /*CALLX8w*/ - case 3: /*CALLX12w*/ - HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); - { - TCGv_i32 tmp = tcg_temp_new_i32(); - - tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]); - gen_callw(dc, CALLX_N, tmp); - tcg_temp_free(tmp); - } - break; - } - break; - } - break; - - case 1: /*MOVSPw*/ - HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); - if (gen_window_check2(dc, RRR_T, RRR_S)) { - TCGv_i32 pc = tcg_const_i32(dc->pc); - gen_helper_movsp(cpu_env, pc); - tcg_gen_mov_i32(cpu_R[RRR_T], cpu_R[RRR_S]); - tcg_temp_free(pc); - } - break; - - case 2: /*SYNC*/ - switch (RRR_T) { - case 0: /*ISYNC*/ - break; - - case 1: /*RSYNC*/ - break; - - case 2: /*ESYNC*/ - break; - - case 3: /*DSYNC*/ - break; - - case 8: /*EXCW*/ - HAS_OPTION(XTENSA_OPTION_EXCEPTION); - break; - - case 12: /*MEMW*/ - break; - - case 13: /*EXTW*/ - break; - - case 15: /*NOP*/ - break; - - default: /*reserved*/ - RESERVED(); - break; - } - break; - - case 3: /*RFEIx*/ - switch (RRR_T) { - case 0: /*RFETx*/ - HAS_OPTION(XTENSA_OPTION_EXCEPTION); - switch (RRR_S) { - case 0: /*RFEx*/ - if (gen_check_privilege(dc)) { - tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_EXCM); - gen_check_interrupts(dc); - gen_jump(dc, cpu_SR[EPC1]); - } - break; - - case 1: /*RFUEx*/ - RESERVED(); - break; - - case 2: /*RFDEx*/ - if (gen_check_privilege(dc)) { - gen_jump(dc, cpu_SR[ - dc->config->ndepc ? DEPC : EPC1]); - } - break; - - case 4: /*RFWOw*/ - case 5: /*RFWUw*/ - HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); - if (gen_check_privilege(dc)) { - TCGv_i32 tmp = tcg_const_i32(1); - - tcg_gen_andi_i32( - cpu_SR[PS], cpu_SR[PS], ~PS_EXCM); - tcg_gen_shl_i32(tmp, tmp, cpu_SR[WINDOW_BASE]); - - if (RRR_S == 4) { - tcg_gen_andc_i32(cpu_SR[WINDOW_START], - cpu_SR[WINDOW_START], tmp); - } else { - tcg_gen_or_i32(cpu_SR[WINDOW_START], - cpu_SR[WINDOW_START], tmp); - } - - gen_helper_restore_owb(cpu_env); - gen_check_interrupts(dc); - gen_jump(dc, cpu_SR[EPC1]); - - tcg_temp_free(tmp); - } - break; - - default: /*reserved*/ - RESERVED(); - break; - } - break; - - case 1: /*RFIx*/ - HAS_OPTION(XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT); - if (RRR_S >= 2 && RRR_S <= dc->config->nlevel) { - if (gen_check_privilege(dc)) { - tcg_gen_mov_i32(cpu_SR[PS], - cpu_SR[EPS2 + RRR_S - 2]); - gen_check_interrupts(dc); - gen_jump(dc, cpu_SR[EPC1 + RRR_S - 1]); - } - } else { - qemu_log_mask(LOG_GUEST_ERROR, "RFI %d is illegal\n", RRR_S); - gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); - } - break; - - case 2: /*RFME*/ - TBD(); - break; - - default: /*reserved*/ - RESERVED(); - break; - - } - break; - - case 4: /*BREAKx*/ - HAS_OPTION(XTENSA_OPTION_DEBUG); - if (dc->debug) { - gen_debug_exception(dc, DEBUGCAUSE_BI); - } - break; - - case 5: /*SYSCALLx*/ - HAS_OPTION(XTENSA_OPTION_EXCEPTION); - switch (RRR_S) { - case 0: /*SYSCALLx*/ - gen_exception_cause(dc, SYSCALL_CAUSE); - break; - - case 1: /*SIMCALL*/ - if (semihosting_enabled()) { - if (gen_check_privilege(dc)) { - gen_helper_simcall(cpu_env); - } - } else { - qemu_log_mask(LOG_GUEST_ERROR, "SIMCALL but semihosting is disabled\n"); - gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); - } - break; - - default: - RESERVED(); - break; - } - break; - - case 6: /*RSILx*/ - HAS_OPTION(XTENSA_OPTION_INTERRUPT); - if (gen_check_privilege(dc) && - gen_window_check1(dc, RRR_T)) { - tcg_gen_mov_i32(cpu_R[RRR_T], cpu_SR[PS]); - tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_INTLEVEL); - tcg_gen_ori_i32(cpu_SR[PS], cpu_SR[PS], RRR_S); - gen_check_interrupts(dc); - gen_jumpi_check_loop_end(dc, 0); - } - break; - - case 7: /*WAITIx*/ - HAS_OPTION(XTENSA_OPTION_INTERRUPT); - if (gen_check_privilege(dc)) { - gen_waiti(dc, RRR_S); - } - break; - - case 8: /*ANY4p*/ - case 9: /*ALL4p*/ - case 10: /*ANY8p*/ - case 11: /*ALL8p*/ - HAS_OPTION(XTENSA_OPTION_BOOLEAN); - { - const unsigned shift = (RRR_R & 2) ? 8 : 4; - TCGv_i32 mask = tcg_const_i32( - ((1 << shift) - 1) << RRR_S); - TCGv_i32 tmp = tcg_temp_new_i32(); - - tcg_gen_and_i32(tmp, cpu_SR[BR], mask); - if (RRR_R & 1) { /*ALL*/ - tcg_gen_addi_i32(tmp, tmp, 1 << RRR_S); - } else { /*ANY*/ - tcg_gen_add_i32(tmp, tmp, mask); - } - tcg_gen_shri_i32(tmp, tmp, RRR_S + shift); - tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR], - tmp, RRR_T, 1); - tcg_temp_free(mask); - tcg_temp_free(tmp); - } - break; - - default: /*reserved*/ - RESERVED(); - break; - - } - break; - - case 1: /*AND*/ - if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { - tcg_gen_and_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); - } - break; - - case 2: /*OR*/ - if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { - tcg_gen_or_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); - } - break; - - case 3: /*XOR*/ - if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { - tcg_gen_xor_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); - } - break; - - case 4: /*ST1*/ - switch (RRR_R) { - case 0: /*SSR*/ - if (gen_window_check1(dc, RRR_S)) { - gen_right_shift_sar(dc, cpu_R[RRR_S]); - } - break; - - case 1: /*SSL*/ - if (gen_window_check1(dc, RRR_S)) { - gen_left_shift_sar(dc, cpu_R[RRR_S]); - } - break; - - case 2: /*SSA8L*/ - if (gen_window_check1(dc, RRR_S)) { - TCGv_i32 tmp = tcg_temp_new_i32(); - tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3); - gen_right_shift_sar(dc, tmp); - tcg_temp_free(tmp); - } - break; - - case 3: /*SSA8B*/ - if (gen_window_check1(dc, RRR_S)) { - TCGv_i32 tmp = tcg_temp_new_i32(); - tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3); - gen_left_shift_sar(dc, tmp); - tcg_temp_free(tmp); - } - break; - - case 4: /*SSAI*/ - { - TCGv_i32 tmp = tcg_const_i32( - RRR_S | ((RRR_T & 1) << 4)); - gen_right_shift_sar(dc, tmp); - tcg_temp_free(tmp); - } - break; - - case 6: /*RER*/ - HAS_OPTION(XTENSA_OPTION_EXTERN_REGS); - if (gen_check_privilege(dc) && - gen_window_check2(dc, RRR_S, RRR_T)) { - gen_helper_rer(cpu_R[RRR_T], cpu_env, cpu_R[RRR_S]); - } - break; - - case 7: /*WER*/ - HAS_OPTION(XTENSA_OPTION_EXTERN_REGS); - if (gen_check_privilege(dc) && - gen_window_check2(dc, RRR_S, RRR_T)) { - gen_helper_wer(cpu_env, cpu_R[RRR_T], cpu_R[RRR_S]); - } - break; - - case 8: /*ROTWw*/ - HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); - if (gen_check_privilege(dc)) { - TCGv_i32 tmp = tcg_const_i32( - RRR_T | ((RRR_T & 8) ? 0xfffffff0 : 0)); - gen_helper_rotw(cpu_env, tmp); - tcg_temp_free(tmp); - /* This can change tb->flags, so exit tb */ - gen_jumpi_check_loop_end(dc, -1); - } - break; - - case 14: /*NSAu*/ - HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA); - if (gen_window_check2(dc, RRR_S, RRR_T)) { - tcg_gen_clrsb_i32(cpu_R[RRR_T], cpu_R[RRR_S]); - } - break; - - case 15: /*NSAUu*/ - HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA); - if (gen_window_check2(dc, RRR_S, RRR_T)) { - tcg_gen_clzi_i32(cpu_R[RRR_T], cpu_R[RRR_S], 32); - } - break; - - default: /*reserved*/ - RESERVED(); - break; - } - break; - - case 5: /*TLB*/ - HAS_OPTION_BITS( - XTENSA_OPTION_BIT(XTENSA_OPTION_MMU) | - XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_PROTECTION) | - XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_TRANSLATION)); - if (gen_check_privilege(dc) && - gen_window_check2(dc, RRR_S, RRR_T)) { - TCGv_i32 dtlb = tcg_const_i32((RRR_R & 8) != 0); - - switch (RRR_R & 7) { - case 3: /*RITLB0*/ /*RDTLB0*/ - gen_helper_rtlb0(cpu_R[RRR_T], - cpu_env, cpu_R[RRR_S], dtlb); - break; - - case 4: /*IITLB*/ /*IDTLB*/ - gen_helper_itlb(cpu_env, cpu_R[RRR_S], dtlb); - /* This could change memory mapping, so exit tb */ - gen_jumpi_check_loop_end(dc, -1); - break; - - case 5: /*PITLB*/ /*PDTLB*/ - tcg_gen_movi_i32(cpu_pc, dc->pc); - gen_helper_ptlb(cpu_R[RRR_T], - cpu_env, cpu_R[RRR_S], dtlb); - break; - - case 6: /*WITLB*/ /*WDTLB*/ - gen_helper_wtlb( - cpu_env, cpu_R[RRR_T], cpu_R[RRR_S], dtlb); - /* This could change memory mapping, so exit tb */ - gen_jumpi_check_loop_end(dc, -1); - break; - - case 7: /*RITLB1*/ /*RDTLB1*/ - gen_helper_rtlb1(cpu_R[RRR_T], - cpu_env, cpu_R[RRR_S], dtlb); - break; - - default: - tcg_temp_free(dtlb); - RESERVED(); - break; - } - tcg_temp_free(dtlb); - } - break; - - case 6: /*RT0*/ - if (!gen_window_check2(dc, RRR_R, RRR_T)) { - break; - } - switch (RRR_S) { - case 0: /*NEG*/ - tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]); - break; - - case 1: /*ABS*/ - { - TCGv_i32 zero = tcg_const_i32(0); - TCGv_i32 neg = tcg_temp_new_i32(); - - tcg_gen_neg_i32(neg, cpu_R[RRR_T]); - tcg_gen_movcond_i32(TCG_COND_GE, cpu_R[RRR_R], - cpu_R[RRR_T], zero, cpu_R[RRR_T], neg); - tcg_temp_free(neg); - tcg_temp_free(zero); - } - break; - - default: /*reserved*/ - RESERVED(); - break; - } - break; - - case 7: /*reserved*/ - RESERVED(); - break; - - case 8: /*ADD*/ - if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { - tcg_gen_add_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); - } - break; - - case 9: /*ADD**/ - case 10: - case 11: - if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { - TCGv_i32 tmp = tcg_temp_new_i32(); - tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 8); - tcg_gen_add_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]); - tcg_temp_free(tmp); - } - break; - - case 12: /*SUB*/ - if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { - tcg_gen_sub_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); - } - break; - - case 13: /*SUB**/ - case 14: - case 15: - if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { - TCGv_i32 tmp = tcg_temp_new_i32(); - tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 12); - tcg_gen_sub_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]); - tcg_temp_free(tmp); - } - break; - } - break; - - case 1: /*RST1*/ - switch (OP2) { - case 0: /*SLLI*/ - case 1: - if (gen_window_check2(dc, RRR_R, RRR_S)) { - tcg_gen_shli_i32(cpu_R[RRR_R], cpu_R[RRR_S], - 32 - (RRR_T | ((OP2 & 1) << 4))); - } - break; - - case 2: /*SRAI*/ - case 3: - if (gen_window_check2(dc, RRR_R, RRR_T)) { - tcg_gen_sari_i32(cpu_R[RRR_R], cpu_R[RRR_T], - RRR_S | ((OP2 & 1) << 4)); - } - break; - - case 4: /*SRLI*/ - if (gen_window_check2(dc, RRR_R, RRR_T)) { - tcg_gen_shri_i32(cpu_R[RRR_R], cpu_R[RRR_T], RRR_S); - } - break; - - case 6: /*XSR*/ - if (gen_check_sr(dc, RSR_SR, SR_X) && - (RSR_SR < 64 || gen_check_privilege(dc)) && - gen_window_check1(dc, RRR_T)) { - TCGv_i32 tmp = tcg_temp_new_i32(); - bool rsr_end, wsr_end; - - tcg_gen_mov_i32(tmp, cpu_R[RRR_T]); - rsr_end = gen_rsr(dc, cpu_R[RRR_T], RSR_SR); - wsr_end = gen_wsr(dc, RSR_SR, tmp); - tcg_temp_free(tmp); - if (rsr_end && !wsr_end) { - gen_jumpi_check_loop_end(dc, 0); - } - } - break; - - /* - * Note: 64 bit ops are used here solely because SAR values - * have range 0..63 - */ -#define gen_shift_reg(cmd, reg) do { \ - TCGv_i64 tmp = tcg_temp_new_i64(); \ - tcg_gen_extu_i32_i64(tmp, reg); \ - tcg_gen_##cmd##_i64(v, v, tmp); \ - tcg_gen_extrl_i64_i32(cpu_R[RRR_R], v); \ - tcg_temp_free_i64(v); \ - tcg_temp_free_i64(tmp); \ - } while (0) - -#define gen_shift(cmd) gen_shift_reg(cmd, cpu_SR[SAR]) - - case 8: /*SRC*/ - if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { - TCGv_i64 v = tcg_temp_new_i64(); - tcg_gen_concat_i32_i64(v, cpu_R[RRR_T], cpu_R[RRR_S]); - gen_shift(shr); - } - break; - - case 9: /*SRL*/ - if (!gen_window_check2(dc, RRR_R, RRR_T)) { - break; - } - if (dc->sar_5bit) { - tcg_gen_shr_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]); - } else { - TCGv_i64 v = tcg_temp_new_i64(); - tcg_gen_extu_i32_i64(v, cpu_R[RRR_T]); - gen_shift(shr); - } - break; - - case 10: /*SLL*/ - if (!gen_window_check2(dc, RRR_R, RRR_S)) { - break; - } - if (dc->sar_m32_5bit) { - tcg_gen_shl_i32(cpu_R[RRR_R], cpu_R[RRR_S], dc->sar_m32); - } else { - TCGv_i64 v = tcg_temp_new_i64(); - TCGv_i32 s = tcg_const_i32(32); - tcg_gen_sub_i32(s, s, cpu_SR[SAR]); - tcg_gen_andi_i32(s, s, 0x3f); - tcg_gen_extu_i32_i64(v, cpu_R[RRR_S]); - gen_shift_reg(shl, s); - tcg_temp_free(s); - } - break; - - case 11: /*SRA*/ - if (!gen_window_check2(dc, RRR_R, RRR_T)) { - break; - } - if (dc->sar_5bit) { - tcg_gen_sar_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]); - } else { - TCGv_i64 v = tcg_temp_new_i64(); - tcg_gen_ext_i32_i64(v, cpu_R[RRR_T]); - gen_shift(sar); - } - break; -#undef gen_shift -#undef gen_shift_reg - - case 12: /*MUL16U*/ - HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL); - if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { - TCGv_i32 v1 = tcg_temp_new_i32(); - TCGv_i32 v2 = tcg_temp_new_i32(); - tcg_gen_ext16u_i32(v1, cpu_R[RRR_S]); - tcg_gen_ext16u_i32(v2, cpu_R[RRR_T]); - tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2); - tcg_temp_free(v2); - tcg_temp_free(v1); - } - break; - - case 13: /*MUL16S*/ - HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL); - if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { - TCGv_i32 v1 = tcg_temp_new_i32(); - TCGv_i32 v2 = tcg_temp_new_i32(); - tcg_gen_ext16s_i32(v1, cpu_R[RRR_S]); - tcg_gen_ext16s_i32(v2, cpu_R[RRR_T]); - tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2); - tcg_temp_free(v2); - tcg_temp_free(v1); - } - break; - - default: /*reserved*/ - RESERVED(); - break; - } - break; - - case 2: /*RST2*/ - if (OP2 >= 8 && !gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { - break; - } - - if (OP2 >= 12) { - HAS_OPTION(XTENSA_OPTION_32_BIT_IDIV); - TCGLabel *label = gen_new_label(); - tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0, label); - gen_exception_cause(dc, INTEGER_DIVIDE_BY_ZERO_CAUSE); - gen_set_label(label); - } - - switch (OP2) { -#define BOOLEAN_LOGIC(fn, r, s, t) \ - do { \ - HAS_OPTION(XTENSA_OPTION_BOOLEAN); \ - TCGv_i32 tmp1 = tcg_temp_new_i32(); \ - TCGv_i32 tmp2 = tcg_temp_new_i32(); \ - \ - tcg_gen_shri_i32(tmp1, cpu_SR[BR], s); \ - tcg_gen_shri_i32(tmp2, cpu_SR[BR], t); \ - tcg_gen_##fn##_i32(tmp1, tmp1, tmp2); \ - tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR], tmp1, r, 1); \ - tcg_temp_free(tmp1); \ - tcg_temp_free(tmp2); \ - } while (0) - - case 0: /*ANDBp*/ - BOOLEAN_LOGIC(and, RRR_R, RRR_S, RRR_T); - break; - - case 1: /*ANDBCp*/ - BOOLEAN_LOGIC(andc, RRR_R, RRR_S, RRR_T); - break; - - case 2: /*ORBp*/ - BOOLEAN_LOGIC(or, RRR_R, RRR_S, RRR_T); - break; - - case 3: /*ORBCp*/ - BOOLEAN_LOGIC(orc, RRR_R, RRR_S, RRR_T); - break; - - case 4: /*XORBp*/ - BOOLEAN_LOGIC(xor, RRR_R, RRR_S, RRR_T); - break; - -#undef BOOLEAN_LOGIC - - case 8: /*MULLi*/ - HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL); - tcg_gen_mul_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); - break; - - case 10: /*MULUHi*/ - case 11: /*MULSHi*/ - HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL_HIGH); - { - TCGv lo = tcg_temp_new(); - - if (OP2 == 10) { - tcg_gen_mulu2_i32(lo, cpu_R[RRR_R], - cpu_R[RRR_S], cpu_R[RRR_T]); - } else { - tcg_gen_muls2_i32(lo, cpu_R[RRR_R], - cpu_R[RRR_S], cpu_R[RRR_T]); - } - tcg_temp_free(lo); - } - break; - - case 12: /*QUOUi*/ - tcg_gen_divu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); - break; - - case 13: /*QUOSi*/ - case 15: /*REMSi*/ - { - TCGLabel *label1 = gen_new_label(); - TCGLabel *label2 = gen_new_label(); - - tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_S], 0x80000000, - label1); - tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0xffffffff, - label1); - tcg_gen_movi_i32(cpu_R[RRR_R], - OP2 == 13 ? 0x80000000 : 0); - tcg_gen_br(label2); - gen_set_label(label1); - if (OP2 == 13) { - tcg_gen_div_i32(cpu_R[RRR_R], - cpu_R[RRR_S], cpu_R[RRR_T]); - } else { - tcg_gen_rem_i32(cpu_R[RRR_R], - cpu_R[RRR_S], cpu_R[RRR_T]); - } - gen_set_label(label2); - } - break; - - case 14: /*REMUi*/ - tcg_gen_remu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); - break; - - default: /*reserved*/ - RESERVED(); - break; - } - break; - - case 3: /*RST3*/ - switch (OP2) { - case 0: /*RSR*/ - if (gen_check_sr(dc, RSR_SR, SR_R) && - (RSR_SR < 64 || gen_check_privilege(dc)) && - gen_window_check1(dc, RRR_T)) { - if (gen_rsr(dc, cpu_R[RRR_T], RSR_SR)) { - gen_jumpi_check_loop_end(dc, 0); - } - } - break; - - case 1: /*WSR*/ - if (gen_check_sr(dc, RSR_SR, SR_W) && - (RSR_SR < 64 || gen_check_privilege(dc)) && - gen_window_check1(dc, RRR_T)) { - gen_wsr(dc, RSR_SR, cpu_R[RRR_T]); - } - break; - - case 2: /*SEXTu*/ - HAS_OPTION(XTENSA_OPTION_MISC_OP_SEXT); - if (gen_window_check2(dc, RRR_R, RRR_S)) { - int shift = 24 - RRR_T; - - if (shift == 24) { - tcg_gen_ext8s_i32(cpu_R[RRR_R], cpu_R[RRR_S]); - } else if (shift == 16) { - tcg_gen_ext16s_i32(cpu_R[RRR_R], cpu_R[RRR_S]); - } else { - TCGv_i32 tmp = tcg_temp_new_i32(); - tcg_gen_shli_i32(tmp, cpu_R[RRR_S], shift); - tcg_gen_sari_i32(cpu_R[RRR_R], tmp, shift); - tcg_temp_free(tmp); - } - } - break; - - case 3: /*CLAMPSu*/ - HAS_OPTION(XTENSA_OPTION_MISC_OP_CLAMPS); - if (gen_window_check2(dc, RRR_R, RRR_S)) { - TCGv_i32 tmp1 = tcg_temp_new_i32(); - TCGv_i32 tmp2 = tcg_temp_new_i32(); - TCGv_i32 zero = tcg_const_i32(0); - - tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 24 - RRR_T); - tcg_gen_xor_i32(tmp2, tmp1, cpu_R[RRR_S]); - tcg_gen_andi_i32(tmp2, tmp2, 0xffffffff << (RRR_T + 7)); - - tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 31); - tcg_gen_xori_i32(tmp1, tmp1, 0xffffffff >> (25 - RRR_T)); - - tcg_gen_movcond_i32(TCG_COND_EQ, cpu_R[RRR_R], tmp2, zero, - cpu_R[RRR_S], tmp1); - tcg_temp_free(tmp1); - tcg_temp_free(tmp2); - tcg_temp_free(zero); - } - break; - - case 4: /*MINu*/ - case 5: /*MAXu*/ - case 6: /*MINUu*/ - case 7: /*MAXUu*/ - HAS_OPTION(XTENSA_OPTION_MISC_OP_MINMAX); - if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { - static const TCGCond cond[] = { - TCG_COND_LE, - TCG_COND_GE, - TCG_COND_LEU, - TCG_COND_GEU - }; - tcg_gen_movcond_i32(cond[OP2 - 4], cpu_R[RRR_R], - cpu_R[RRR_S], cpu_R[RRR_T], - cpu_R[RRR_S], cpu_R[RRR_T]); - } - break; - - case 8: /*MOVEQZ*/ - case 9: /*MOVNEZ*/ - case 10: /*MOVLTZ*/ - case 11: /*MOVGEZ*/ - if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { - static const TCGCond cond[] = { - TCG_COND_EQ, - TCG_COND_NE, - TCG_COND_LT, - TCG_COND_GE, - }; - TCGv_i32 zero = tcg_const_i32(0); - - tcg_gen_movcond_i32(cond[OP2 - 8], cpu_R[RRR_R], - cpu_R[RRR_T], zero, cpu_R[RRR_S], cpu_R[RRR_R]); - tcg_temp_free(zero); - } - break; - - case 12: /*MOVFp*/ - case 13: /*MOVTp*/ - HAS_OPTION(XTENSA_OPTION_BOOLEAN); - if (gen_window_check2(dc, RRR_R, RRR_S)) { - TCGv_i32 zero = tcg_const_i32(0); - TCGv_i32 tmp = tcg_temp_new_i32(); - - tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T); - tcg_gen_movcond_i32(OP2 & 1 ? TCG_COND_NE : TCG_COND_EQ, - cpu_R[RRR_R], tmp, zero, - cpu_R[RRR_S], cpu_R[RRR_R]); - - tcg_temp_free(tmp); - tcg_temp_free(zero); - } - break; - - case 14: /*RUR*/ - if (gen_window_check1(dc, RRR_R)) { - int st = (RRR_S << 4) + RRR_T; - if (uregnames[st].name) { - tcg_gen_mov_i32(cpu_R[RRR_R], cpu_UR[st]); - } else { - qemu_log_mask(LOG_UNIMP, "RUR %d not implemented, ", st); - TBD(); - } - } - break; - - case 15: /*WUR*/ - if (gen_window_check1(dc, RRR_T)) { - if (uregnames[RSR_SR].name) { - gen_wur(RSR_SR, cpu_R[RRR_T]); - } else { - qemu_log_mask(LOG_UNIMP, "WUR %d not implemented, ", RSR_SR); - TBD(); - } - } - break; - - } - break; - - case 4: /*EXTUI*/ - case 5: - if (gen_window_check2(dc, RRR_R, RRR_T)) { - int shiftimm = RRR_S | ((OP1 & 1) << 4); - int maskimm = (1 << (OP2 + 1)) - 1; - - TCGv_i32 tmp = tcg_temp_new_i32(); - tcg_gen_shri_i32(tmp, cpu_R[RRR_T], shiftimm); - tcg_gen_andi_i32(cpu_R[RRR_R], tmp, maskimm); - tcg_temp_free(tmp); - } - break; - - case 6: /*CUST0*/ - RESERVED(); - break; - - case 7: /*CUST1*/ - RESERVED(); - break; - - case 8: /*LSCXp*/ - switch (OP2) { - case 0: /*LSXf*/ - case 1: /*LSXUf*/ - case 4: /*SSXf*/ - case 5: /*SSXUf*/ - HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); - if (gen_window_check2(dc, RRR_S, RRR_T) && - gen_check_cpenable(dc, 0)) { - TCGv_i32 addr = tcg_temp_new_i32(); - tcg_gen_add_i32(addr, cpu_R[RRR_S], cpu_R[RRR_T]); - gen_load_store_alignment(dc, 2, addr, false); - if (OP2 & 0x4) { - tcg_gen_qemu_st32(cpu_FR[RRR_R], addr, dc->cring); - } else { - tcg_gen_qemu_ld32u(cpu_FR[RRR_R], addr, dc->cring); - } - if (OP2 & 0x1) { - tcg_gen_mov_i32(cpu_R[RRR_S], addr); - } - tcg_temp_free(addr); - } - break; - - default: /*reserved*/ - RESERVED(); - break; - } - break; - - case 9: /*LSC4*/ - if (!gen_window_check2(dc, RRR_S, RRR_T)) { - break; - } - switch (OP2) { - case 0: /*L32E*/ - HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); - if (gen_check_privilege(dc) && - gen_window_check2(dc, RRR_S, RRR_T)) { - TCGv_i32 addr = tcg_temp_new_i32(); - tcg_gen_addi_i32(addr, cpu_R[RRR_S], - (0xffffffc0 | (RRR_R << 2))); - tcg_gen_qemu_ld32u(cpu_R[RRR_T], addr, dc->ring); - tcg_temp_free(addr); - } - break; - - case 4: /*S32E*/ - HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); - if (gen_check_privilege(dc) && - gen_window_check2(dc, RRR_S, RRR_T)) { - TCGv_i32 addr = tcg_temp_new_i32(); - tcg_gen_addi_i32(addr, cpu_R[RRR_S], - (0xffffffc0 | (RRR_R << 2))); - tcg_gen_qemu_st32(cpu_R[RRR_T], addr, dc->ring); - tcg_temp_free(addr); - } - break; - - case 5: /*S32N*/ - if (gen_window_check2(dc, RRI4_S, RRI4_T)) { - TCGv_i32 addr = tcg_temp_new_i32(); - - tcg_gen_addi_i32(addr, cpu_R[RRI4_S], RRI4_IMM4 << 2); - gen_load_store_alignment(dc, 2, addr, false); - tcg_gen_qemu_st32(cpu_R[RRI4_T], addr, dc->cring); - tcg_temp_free(addr); - } - break; - - default: - RESERVED(); - break; - } - break; - - case 10: /*FP0*/ - /*DEPBITS*/ - if (option_enabled(dc, XTENSA_OPTION_DEPBITS)) { - if (!gen_window_check2(dc, RRR_S, RRR_T)) { - break; - } - tcg_gen_deposit_i32(cpu_R[RRR_T], cpu_R[RRR_T], cpu_R[RRR_S], - OP2, RRR_R + 1); - break; - } - - HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); - switch (OP2) { - case 0: /*ADD.Sf*/ - if (gen_check_cpenable(dc, 0)) { - gen_helper_add_s(cpu_FR[RRR_R], cpu_env, - cpu_FR[RRR_S], cpu_FR[RRR_T]); - } - break; - - case 1: /*SUB.Sf*/ - if (gen_check_cpenable(dc, 0)) { - gen_helper_sub_s(cpu_FR[RRR_R], cpu_env, - cpu_FR[RRR_S], cpu_FR[RRR_T]); - } - break; - - case 2: /*MUL.Sf*/ - if (gen_check_cpenable(dc, 0)) { - gen_helper_mul_s(cpu_FR[RRR_R], cpu_env, - cpu_FR[RRR_S], cpu_FR[RRR_T]); - } - break; - - case 4: /*MADD.Sf*/ - if (gen_check_cpenable(dc, 0)) { - gen_helper_madd_s(cpu_FR[RRR_R], cpu_env, - cpu_FR[RRR_R], cpu_FR[RRR_S], - cpu_FR[RRR_T]); - } - break; - - case 5: /*MSUB.Sf*/ - if (gen_check_cpenable(dc, 0)) { - gen_helper_msub_s(cpu_FR[RRR_R], cpu_env, - cpu_FR[RRR_R], cpu_FR[RRR_S], - cpu_FR[RRR_T]); - } - break; - - case 8: /*ROUND.Sf*/ - case 9: /*TRUNC.Sf*/ - case 10: /*FLOOR.Sf*/ - case 11: /*CEIL.Sf*/ - case 14: /*UTRUNC.Sf*/ - if (gen_window_check1(dc, RRR_R) && - gen_check_cpenable(dc, 0)) { - static const unsigned rounding_mode_const[] = { - float_round_nearest_even, - float_round_to_zero, - float_round_down, - float_round_up, - [6] = float_round_to_zero, - }; - TCGv_i32 rounding_mode = tcg_const_i32( - rounding_mode_const[OP2 & 7]); - TCGv_i32 scale = tcg_const_i32(RRR_T); - - if (OP2 == 14) { - gen_helper_ftoui(cpu_R[RRR_R], cpu_FR[RRR_S], - rounding_mode, scale); - } else { - gen_helper_ftoi(cpu_R[RRR_R], cpu_FR[RRR_S], - rounding_mode, scale); - } - - tcg_temp_free(rounding_mode); - tcg_temp_free(scale); - } - break; - - case 12: /*FLOAT.Sf*/ - case 13: /*UFLOAT.Sf*/ - if (gen_window_check1(dc, RRR_S) && - gen_check_cpenable(dc, 0)) { - TCGv_i32 scale = tcg_const_i32(-RRR_T); - - if (OP2 == 13) { - gen_helper_uitof(cpu_FR[RRR_R], cpu_env, - cpu_R[RRR_S], scale); - } else { - gen_helper_itof(cpu_FR[RRR_R], cpu_env, - cpu_R[RRR_S], scale); - } - tcg_temp_free(scale); - } - break; - - case 15: /*FP1OP*/ - switch (RRR_T) { - case 0: /*MOV.Sf*/ - if (gen_check_cpenable(dc, 0)) { - tcg_gen_mov_i32(cpu_FR[RRR_R], cpu_FR[RRR_S]); - } - break; - - case 1: /*ABS.Sf*/ - if (gen_check_cpenable(dc, 0)) { - gen_helper_abs_s(cpu_FR[RRR_R], cpu_FR[RRR_S]); - } - break; - - case 4: /*RFRf*/ - if (gen_window_check1(dc, RRR_R) && - gen_check_cpenable(dc, 0)) { - tcg_gen_mov_i32(cpu_R[RRR_R], cpu_FR[RRR_S]); - } - break; - - case 5: /*WFRf*/ - if (gen_window_check1(dc, RRR_S) && - gen_check_cpenable(dc, 0)) { - tcg_gen_mov_i32(cpu_FR[RRR_R], cpu_R[RRR_S]); - } - break; - - case 6: /*NEG.Sf*/ - if (gen_check_cpenable(dc, 0)) { - gen_helper_neg_s(cpu_FR[RRR_R], cpu_FR[RRR_S]); - } - break; - - default: /*reserved*/ - RESERVED(); - break; - } - break; - - default: /*reserved*/ - RESERVED(); - break; - } - break; - - case 11: /*FP1*/ - /*DEPBITS*/ - if (option_enabled(dc, XTENSA_OPTION_DEPBITS)) { - if (!gen_window_check2(dc, RRR_S, RRR_T)) { - break; - } - tcg_gen_deposit_i32(cpu_R[RRR_T], cpu_R[RRR_T], cpu_R[RRR_S], - OP2 + 16, RRR_R + 1); - break; - } - HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); - -#define gen_compare(rel, br, a, b) \ - do { \ - if (gen_check_cpenable(dc, 0)) { \ - TCGv_i32 bit = tcg_const_i32(1 << br); \ - \ - gen_helper_##rel(cpu_env, bit, cpu_FR[a], cpu_FR[b]); \ - tcg_temp_free(bit); \ - } \ - } while (0) - - switch (OP2) { - case 1: /*UN.Sf*/ - gen_compare(un_s, RRR_R, RRR_S, RRR_T); - break; - - case 2: /*OEQ.Sf*/ - gen_compare(oeq_s, RRR_R, RRR_S, RRR_T); - break; - - case 3: /*UEQ.Sf*/ - gen_compare(ueq_s, RRR_R, RRR_S, RRR_T); - break; - - case 4: /*OLT.Sf*/ - gen_compare(olt_s, RRR_R, RRR_S, RRR_T); - break; - - case 5: /*ULT.Sf*/ - gen_compare(ult_s, RRR_R, RRR_S, RRR_T); - break; - - case 6: /*OLE.Sf*/ - gen_compare(ole_s, RRR_R, RRR_S, RRR_T); - break; - - case 7: /*ULE.Sf*/ - gen_compare(ule_s, RRR_R, RRR_S, RRR_T); - break; - -#undef gen_compare - - case 8: /*MOVEQZ.Sf*/ - case 9: /*MOVNEZ.Sf*/ - case 10: /*MOVLTZ.Sf*/ - case 11: /*MOVGEZ.Sf*/ - if (gen_window_check1(dc, RRR_T) && - gen_check_cpenable(dc, 0)) { - static const TCGCond cond[] = { - TCG_COND_EQ, - TCG_COND_NE, - TCG_COND_LT, - TCG_COND_GE, - }; - TCGv_i32 zero = tcg_const_i32(0); - - tcg_gen_movcond_i32(cond[OP2 - 8], cpu_FR[RRR_R], - cpu_R[RRR_T], zero, cpu_FR[RRR_S], cpu_FR[RRR_R]); - tcg_temp_free(zero); - } - break; - - case 12: /*MOVF.Sf*/ - case 13: /*MOVT.Sf*/ - HAS_OPTION(XTENSA_OPTION_BOOLEAN); - if (gen_check_cpenable(dc, 0)) { - TCGv_i32 zero = tcg_const_i32(0); - TCGv_i32 tmp = tcg_temp_new_i32(); - - tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T); - tcg_gen_movcond_i32(OP2 & 1 ? TCG_COND_NE : TCG_COND_EQ, - cpu_FR[RRR_R], tmp, zero, - cpu_FR[RRR_S], cpu_FR[RRR_R]); - - tcg_temp_free(tmp); - tcg_temp_free(zero); - } - break; - - default: /*reserved*/ - RESERVED(); - break; - } - break; - - default: /*reserved*/ - RESERVED(); - break; - } - break; - - case 1: /*L32R*/ - if (gen_window_check1(dc, RRR_T)) { - TCGv_i32 tmp = tcg_const_i32( - ((dc->tb->flags & XTENSA_TBFLAG_LITBASE) ? - 0 : ((dc->pc + 3) & ~3)) + - (0xfffc0000 | (RI16_IMM16 << 2))); - - if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) { - tcg_gen_add_i32(tmp, tmp, dc->litbase); - } - tcg_gen_qemu_ld32u(cpu_R[RRR_T], tmp, dc->cring); - tcg_temp_free(tmp); - } - break; - - case 2: /*LSAI*/ -#define gen_load_store(type, shift) do { \ - if (gen_window_check2(dc, RRI8_S, RRI8_T)) { \ - TCGv_i32 addr = tcg_temp_new_i32(); \ - \ - tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << shift); \ - if (shift) { \ - gen_load_store_alignment(dc, shift, addr, false); \ - } \ - tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \ - tcg_temp_free(addr); \ - } \ - } while (0) - - switch (RRI8_R) { - case 0: /*L8UI*/ - gen_load_store(ld8u, 0); - break; - - case 1: /*L16UI*/ - gen_load_store(ld16u, 1); - break; - - case 2: /*L32I*/ - gen_load_store(ld32u, 2); - break; - - case 4: /*S8I*/ - gen_load_store(st8, 0); - break; - - case 5: /*S16I*/ - gen_load_store(st16, 1); - break; - - case 6: /*S32I*/ - gen_load_store(st32, 2); - break; - -#define gen_dcache_hit_test(w, shift) do { \ - if (gen_window_check1(dc, RRI##w##_S)) { \ - TCGv_i32 addr = tcg_temp_new_i32(); \ - TCGv_i32 res = tcg_temp_new_i32(); \ - tcg_gen_addi_i32(addr, cpu_R[RRI##w##_S], \ - RRI##w##_IMM##w << shift); \ - tcg_gen_qemu_ld8u(res, addr, dc->cring); \ - tcg_temp_free(addr); \ - tcg_temp_free(res); \ - } \ - } while (0) - -#define gen_dcache_hit_test4() gen_dcache_hit_test(4, 4) -#define gen_dcache_hit_test8() gen_dcache_hit_test(8, 2) - - case 7: /*CACHEc*/ - if (RRI8_T < 8) { - HAS_OPTION(XTENSA_OPTION_DCACHE); - } - - switch (RRI8_T) { - case 0: /*DPFRc*/ - gen_window_check1(dc, RRI8_S); - break; - - case 1: /*DPFWc*/ - gen_window_check1(dc, RRI8_S); - break; - - case 2: /*DPFROc*/ - gen_window_check1(dc, RRI8_S); - break; - - case 3: /*DPFWOc*/ - gen_window_check1(dc, RRI8_S); - break; - - case 4: /*DHWBc*/ - gen_dcache_hit_test8(); - break; - - case 5: /*DHWBIc*/ - gen_dcache_hit_test8(); - break; - - case 6: /*DHIc*/ - if (gen_check_privilege(dc)) { - gen_dcache_hit_test8(); - } - break; - - case 7: /*DIIc*/ - if (gen_check_privilege(dc)) { - gen_window_check1(dc, RRI8_S); - } - break; - - case 8: /*DCEc*/ - switch (OP1) { - case 0: /*DPFLl*/ - HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); - if (gen_check_privilege(dc)) { - gen_dcache_hit_test4(); - } - break; - - case 2: /*DHUl*/ - HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); - if (gen_check_privilege(dc)) { - gen_dcache_hit_test4(); - } - break; - - case 3: /*DIUl*/ - HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); - if (gen_check_privilege(dc)) { - gen_window_check1(dc, RRI4_S); - } - break; - - case 4: /*DIWBc*/ - HAS_OPTION(XTENSA_OPTION_DCACHE); - if (gen_check_privilege(dc)) { - gen_window_check1(dc, RRI4_S); - } - break; - - case 5: /*DIWBIc*/ - HAS_OPTION(XTENSA_OPTION_DCACHE); - if (gen_check_privilege(dc)) { - gen_window_check1(dc, RRI4_S); - } - break; - - default: /*reserved*/ - RESERVED(); - break; - - } - break; - -#undef gen_dcache_hit_test -#undef gen_dcache_hit_test4 -#undef gen_dcache_hit_test8 - -#define gen_icache_hit_test(w, shift) do { \ - if (gen_window_check1(dc, RRI##w##_S)) { \ - TCGv_i32 addr = tcg_temp_new_i32(); \ - tcg_gen_movi_i32(cpu_pc, dc->pc); \ - tcg_gen_addi_i32(addr, cpu_R[RRI##w##_S], \ - RRI##w##_IMM##w << shift); \ - gen_helper_itlb_hit_test(cpu_env, addr); \ - tcg_temp_free(addr); \ - }\ - } while (0) - -#define gen_icache_hit_test4() gen_icache_hit_test(4, 4) -#define gen_icache_hit_test8() gen_icache_hit_test(8, 2) - - case 12: /*IPFc*/ - HAS_OPTION(XTENSA_OPTION_ICACHE); - gen_window_check1(dc, RRI8_S); - break; - - case 13: /*ICEc*/ - switch (OP1) { - case 0: /*IPFLl*/ - HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); - if (gen_check_privilege(dc)) { - gen_icache_hit_test4(); - } - break; - - case 2: /*IHUl*/ - HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); - if (gen_check_privilege(dc)) { - gen_icache_hit_test4(); - } - break; - - case 3: /*IIUl*/ - HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); - if (gen_check_privilege(dc)) { - gen_window_check1(dc, RRI4_S); - } - break; - - default: /*reserved*/ - RESERVED(); - break; - } - break; - - case 14: /*IHIc*/ - HAS_OPTION(XTENSA_OPTION_ICACHE); - gen_icache_hit_test8(); - break; - - case 15: /*IIIc*/ - HAS_OPTION(XTENSA_OPTION_ICACHE); - if (gen_check_privilege(dc)) { - gen_window_check1(dc, RRI8_S); - } - break; - - default: /*reserved*/ - RESERVED(); - break; - } - break; - -#undef gen_icache_hit_test -#undef gen_icache_hit_test4 -#undef gen_icache_hit_test8 - - case 9: /*L16SI*/ - gen_load_store(ld16s, 1); - break; -#undef gen_load_store - - case 10: /*MOVI*/ - if (gen_window_check1(dc, RRI8_T)) { - tcg_gen_movi_i32(cpu_R[RRI8_T], - RRI8_IMM8 | (RRI8_S << 8) | - ((RRI8_S & 0x8) ? 0xfffff000 : 0)); - } - break; - -#define gen_load_store_no_hw_align(type) do { \ - if (gen_window_check2(dc, RRI8_S, RRI8_T)) { \ - TCGv_i32 addr = tcg_temp_local_new_i32(); \ - tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); \ - gen_load_store_alignment(dc, 2, addr, true); \ - tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \ - tcg_temp_free(addr); \ - } \ - } while (0) - - case 11: /*L32AIy*/ - HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO); - gen_load_store_no_hw_align(ld32u); /*TODO acquire?*/ - break; - - case 12: /*ADDI*/ - if (gen_window_check2(dc, RRI8_S, RRI8_T)) { - tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE); - } - break; - - case 13: /*ADDMI*/ - if (gen_window_check2(dc, RRI8_S, RRI8_T)) { - tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], - RRI8_IMM8_SE << 8); - } - break; - - case 14: /*S32C1Iy*/ - HAS_OPTION(XTENSA_OPTION_CONDITIONAL_STORE); - if (gen_window_check2(dc, RRI8_S, RRI8_T)) { - TCGLabel *label = gen_new_label(); - TCGv_i32 tmp = tcg_temp_local_new_i32(); - TCGv_i32 addr = tcg_temp_local_new_i32(); - TCGv_i32 tpc; - - tcg_gen_mov_i32(tmp, cpu_R[RRI8_T]); - tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); - gen_load_store_alignment(dc, 2, addr, true); - - tpc = tcg_const_i32(dc->pc); - gen_helper_check_atomctl(cpu_env, tpc, addr); - tcg_gen_qemu_ld32u(cpu_R[RRI8_T], addr, dc->cring); - tcg_gen_brcond_i32(TCG_COND_NE, cpu_R[RRI8_T], - cpu_SR[SCOMPARE1], label); - - tcg_gen_qemu_st32(tmp, addr, dc->cring); - - gen_set_label(label); - tcg_temp_free(tpc); - tcg_temp_free(addr); - tcg_temp_free(tmp); - } - break; - - case 15: /*S32RIy*/ - HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO); - gen_load_store_no_hw_align(st32); /*TODO release?*/ - break; -#undef gen_load_store_no_hw_align - - default: /*reserved*/ - RESERVED(); - break; - } - break; - - case 3: /*LSCIp*/ - switch (RRI8_R) { - case 0: /*LSIf*/ - case 4: /*SSIf*/ - case 8: /*LSIUf*/ - case 12: /*SSIUf*/ - HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); - if (gen_window_check1(dc, RRI8_S) && - gen_check_cpenable(dc, 0)) { - TCGv_i32 addr = tcg_temp_new_i32(); - tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); - gen_load_store_alignment(dc, 2, addr, false); - if (RRI8_R & 0x4) { - tcg_gen_qemu_st32(cpu_FR[RRI8_T], addr, dc->cring); - } else { - tcg_gen_qemu_ld32u(cpu_FR[RRI8_T], addr, dc->cring); - } - if (RRI8_R & 0x8) { - tcg_gen_mov_i32(cpu_R[RRI8_S], addr); - } - tcg_temp_free(addr); - } - break; - - default: /*reserved*/ - RESERVED(); - break; - } - break; - - case 4: /*MAC16d*/ - HAS_OPTION(XTENSA_OPTION_MAC16); - { - enum { - MAC16_UMUL = 0x0, - MAC16_MUL = 0x4, - MAC16_MULA = 0x8, - MAC16_MULS = 0xc, - MAC16_NONE = 0xf, - } op = OP1 & 0xc; - bool is_m1_sr = (OP2 & 0x3) == 2; - bool is_m2_sr = (OP2 & 0xc) == 0; - uint32_t ld_offset = 0; - - if (OP2 > 9) { - RESERVED(); - } - - switch (OP2 & 2) { - case 0: /*MACI?/MACC?*/ - is_m1_sr = true; - ld_offset = (OP2 & 1) ? -4 : 4; - - if (OP2 >= 8) { /*MACI/MACC*/ - if (OP1 == 0) { /*LDINC/LDDEC*/ - op = MAC16_NONE; - } else { - RESERVED(); - } - } else if (op != MAC16_MULA) { /*MULA.*.*.LDINC/LDDEC*/ - RESERVED(); - } - break; - - case 2: /*MACD?/MACA?*/ - if (op == MAC16_UMUL && OP2 != 7) { /*UMUL only in MACAA*/ - RESERVED(); - } - break; - } - - if (op != MAC16_NONE) { - if (!is_m1_sr && !gen_window_check1(dc, RRR_S)) { - break; - } - if (!is_m2_sr && !gen_window_check1(dc, RRR_T)) { - break; - } - } - - if (ld_offset && !gen_window_check1(dc, RRR_S)) { - break; - } - - { - TCGv_i32 vaddr = tcg_temp_new_i32(); - TCGv_i32 mem32 = tcg_temp_new_i32(); - - if (ld_offset) { - tcg_gen_addi_i32(vaddr, cpu_R[RRR_S], ld_offset); - gen_load_store_alignment(dc, 2, vaddr, false); - tcg_gen_qemu_ld32u(mem32, vaddr, dc->cring); - } - if (op != MAC16_NONE) { - TCGv_i32 m1 = gen_mac16_m( - is_m1_sr ? cpu_SR[MR + RRR_X] : cpu_R[RRR_S], - OP1 & 1, op == MAC16_UMUL); - TCGv_i32 m2 = gen_mac16_m( - is_m2_sr ? cpu_SR[MR + 2 + RRR_Y] : cpu_R[RRR_T], - OP1 & 2, op == MAC16_UMUL); - - if (op == MAC16_MUL || op == MAC16_UMUL) { - tcg_gen_mul_i32(cpu_SR[ACCLO], m1, m2); - if (op == MAC16_UMUL) { - tcg_gen_movi_i32(cpu_SR[ACCHI], 0); - } else { - tcg_gen_sari_i32(cpu_SR[ACCHI], cpu_SR[ACCLO], 31); - } - } else { - TCGv_i32 lo = tcg_temp_new_i32(); - TCGv_i32 hi = tcg_temp_new_i32(); - - tcg_gen_mul_i32(lo, m1, m2); - tcg_gen_sari_i32(hi, lo, 31); - if (op == MAC16_MULA) { - tcg_gen_add2_i32(cpu_SR[ACCLO], cpu_SR[ACCHI], - cpu_SR[ACCLO], cpu_SR[ACCHI], - lo, hi); - } else { - tcg_gen_sub2_i32(cpu_SR[ACCLO], cpu_SR[ACCHI], - cpu_SR[ACCLO], cpu_SR[ACCHI], - lo, hi); - } - tcg_gen_ext8s_i32(cpu_SR[ACCHI], cpu_SR[ACCHI]); - - tcg_temp_free_i32(lo); - tcg_temp_free_i32(hi); - } - tcg_temp_free(m1); - tcg_temp_free(m2); - } - if (ld_offset) { - tcg_gen_mov_i32(cpu_R[RRR_S], vaddr); - tcg_gen_mov_i32(cpu_SR[MR + RRR_W], mem32); - } - tcg_temp_free(vaddr); - tcg_temp_free(mem32); - } - } - break; - - case 5: /*CALLN*/ - switch (CALL_N) { - case 0: /*CALL0*/ - tcg_gen_movi_i32(cpu_R[0], dc->next_pc); - gen_jumpi(dc, (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0); - break; - - case 1: /*CALL4w*/ - case 2: /*CALL8w*/ - case 3: /*CALL12w*/ - HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); - if (gen_window_check1(dc, CALL_N << 2)) { - gen_callwi(dc, CALL_N, - (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0); - } - break; + dc->next_pc = dc->pc + len; + for (i = 1; i < len; ++i) { + b[i] = cpu_ldub_code(env, dc->pc + i); + } + xtensa_insnbuf_from_chars(isa, dc->insnbuf, b, len); + fmt = xtensa_format_decode(isa, dc->insnbuf); + if (fmt == XTENSA_UNDEFINED) { + qemu_log_mask(LOG_GUEST_ERROR, + "unrecognized instruction format (pc = %08x)\n", + dc->pc); + gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); + return; + } + slots = xtensa_format_num_slots(isa, fmt); + for (slot = 0; slot < slots; ++slot) { + xtensa_opcode opc; + unsigned opnd, vopnd, opnds; + uint32_t raw_arg[MAX_OPCODE_ARGS]; + uint32_t arg[MAX_OPCODE_ARGS]; + XtensaOpcodeOps *ops; + + dc->raw_arg = raw_arg; + + xtensa_format_get_slot(isa, fmt, slot, dc->insnbuf, dc->slotbuf); + opc = xtensa_opcode_decode(isa, fmt, slot, dc->slotbuf); + if (opc == XTENSA_UNDEFINED) { + qemu_log_mask(LOG_GUEST_ERROR, + "unrecognized opcode in slot %d (pc = %08x)\n", + slot, dc->pc); + gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); + return; } - break; - - case 6: /*SI*/ - switch (CALL_N) { - case 0: /*J*/ - gen_jumpi(dc, dc->pc + 4 + CALL_OFFSET_SE, 0); - break; - - case 1: /*BZ*/ - if (gen_window_check1(dc, BRI12_S)) { - static const TCGCond cond[] = { - TCG_COND_EQ, /*BEQZ*/ - TCG_COND_NE, /*BNEZ*/ - TCG_COND_LT, /*BLTZ*/ - TCG_COND_GE, /*BGEZ*/ - }; - - gen_brcondi(dc, cond[BRI12_M & 3], cpu_R[BRI12_S], 0, - 4 + BRI12_IMM12_SE); - } - break; - - case 2: /*BI0*/ - if (gen_window_check1(dc, BRI8_S)) { - static const TCGCond cond[] = { - TCG_COND_EQ, /*BEQI*/ - TCG_COND_NE, /*BNEI*/ - TCG_COND_LT, /*BLTI*/ - TCG_COND_GE, /*BGEI*/ - }; - - gen_brcondi(dc, cond[BRI8_M & 3], - cpu_R[BRI8_S], B4CONST[BRI8_R], 4 + BRI8_IMM8_SE); - } - break; - - case 3: /*BI1*/ - switch (BRI8_M) { - case 0: /*ENTRYw*/ - HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); - { - TCGv_i32 pc = tcg_const_i32(dc->pc); - TCGv_i32 s = tcg_const_i32(BRI12_S); - TCGv_i32 imm = tcg_const_i32(BRI12_IMM12 << 3); - gen_helper_entry(cpu_env, pc, s, imm); - tcg_temp_free(imm); - tcg_temp_free(s); - tcg_temp_free(pc); - /* This can change tb->flags, so exit tb */ - gen_jumpi_check_loop_end(dc, -1); - } - break; - - case 1: /*B1*/ - switch (BRI8_R) { - case 0: /*BFp*/ - case 1: /*BTp*/ - HAS_OPTION(XTENSA_OPTION_BOOLEAN); - { - TCGv_i32 tmp = tcg_temp_new_i32(); - tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRI8_S); - gen_brcondi(dc, - BRI8_R == 1 ? TCG_COND_NE : TCG_COND_EQ, - tmp, 0, 4 + RRI8_IMM8_SE); - tcg_temp_free(tmp); - } - break; - - case 8: /*LOOP*/ - case 9: /*LOOPNEZ*/ - case 10: /*LOOPGTZ*/ - HAS_OPTION(XTENSA_OPTION_LOOP); - if (gen_window_check1(dc, RRI8_S)) { - uint32_t lend = dc->pc + RRI8_IMM8 + 4; - TCGv_i32 tmp = tcg_const_i32(lend); - - tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_R[RRI8_S], 1); - tcg_gen_movi_i32(cpu_SR[LBEG], dc->next_pc); - gen_helper_wsr_lend(cpu_env, tmp); - tcg_temp_free(tmp); - - if (BRI8_R > 8) { - TCGLabel *label = gen_new_label(); - tcg_gen_brcondi_i32( - BRI8_R == 9 ? TCG_COND_NE : TCG_COND_GT, - cpu_R[RRI8_S], 0, label); - gen_jumpi(dc, lend, 1); - gen_set_label(label); - } - - gen_jumpi(dc, dc->next_pc, 0); - } - break; - - default: /*reserved*/ - RESERVED(); - break; - - } - break; - - case 2: /*BLTUI*/ - case 3: /*BGEUI*/ - if (gen_window_check1(dc, BRI8_S)) { - gen_brcondi(dc, BRI8_M == 2 ? TCG_COND_LTU : TCG_COND_GEU, - cpu_R[BRI8_S], B4CONSTU[BRI8_R], - 4 + BRI8_IMM8_SE); + opnds = xtensa_opcode_num_operands(isa, opc); + + for (opnd = vopnd = 0; opnd < opnds; ++opnd) { + if (xtensa_operand_is_visible(isa, opc, opnd)) { + uint32_t v; + + xtensa_operand_get_field(isa, opc, opnd, fmt, slot, + dc->slotbuf, &v); + xtensa_operand_decode(isa, opc, opnd, &v); + raw_arg[vopnd] = v; + if (xtensa_operand_is_PCrelative(isa, opc, opnd)) { + xtensa_operand_undo_reloc(isa, opc, opnd, &v, dc->pc); } - break; + arg[vopnd] = v; + ++vopnd; } - break; - } - break; - - case 7: /*B*/ - { - TCGCond eq_ne = (RRI8_R & 8) ? TCG_COND_NE : TCG_COND_EQ; - - switch (RRI8_R & 7) { - case 0: /*BNONE*/ /*BANY*/ - if (gen_window_check2(dc, RRI8_S, RRI8_T)) { - TCGv_i32 tmp = tcg_temp_new_i32(); - tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]); - gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); - tcg_temp_free(tmp); - } - break; - - case 1: /*BEQ*/ /*BNE*/ - case 2: /*BLT*/ /*BGE*/ - case 3: /*BLTU*/ /*BGEU*/ - if (gen_window_check2(dc, RRI8_S, RRI8_T)) { - static const TCGCond cond[] = { - [1] = TCG_COND_EQ, - [2] = TCG_COND_LT, - [3] = TCG_COND_LTU, - [9] = TCG_COND_NE, - [10] = TCG_COND_GE, - [11] = TCG_COND_GEU, - }; - gen_brcond(dc, cond[RRI8_R], cpu_R[RRI8_S], cpu_R[RRI8_T], - 4 + RRI8_IMM8_SE); - } - break; - - case 4: /*BALL*/ /*BNALL*/ - if (gen_window_check2(dc, RRI8_S, RRI8_T)) { - TCGv_i32 tmp = tcg_temp_new_i32(); - tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]); - gen_brcond(dc, eq_ne, tmp, cpu_R[RRI8_T], - 4 + RRI8_IMM8_SE); - tcg_temp_free(tmp); - } - break; - - case 5: /*BBC*/ /*BBS*/ - if (gen_window_check2(dc, RRI8_S, RRI8_T)) { -#ifdef TARGET_WORDS_BIGENDIAN - TCGv_i32 bit = tcg_const_i32(0x80000000); -#else - TCGv_i32 bit = tcg_const_i32(0x00000001); -#endif - TCGv_i32 tmp = tcg_temp_new_i32(); - tcg_gen_andi_i32(tmp, cpu_R[RRI8_T], 0x1f); -#ifdef TARGET_WORDS_BIGENDIAN - tcg_gen_shr_i32(bit, bit, tmp); -#else - tcg_gen_shl_i32(bit, bit, tmp); -#endif - tcg_gen_and_i32(tmp, cpu_R[RRI8_S], bit); - gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); - tcg_temp_free(tmp); - tcg_temp_free(bit); - } - break; - - case 6: /*BBCI*/ /*BBSI*/ - case 7: - if (gen_window_check1(dc, RRI8_S)) { - TCGv_i32 tmp = tcg_temp_new_i32(); - tcg_gen_andi_i32(tmp, cpu_R[RRI8_S], -#ifdef TARGET_WORDS_BIGENDIAN - 0x80000000 >> (((RRI8_R & 1) << 4) | RRI8_T)); -#else - 0x00000001 << (((RRI8_R & 1) << 4) | RRI8_T)); -#endif - gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); - tcg_temp_free(tmp); - } - break; - - } - } - break; - -#define gen_narrow_load_store(type) do { \ - if (gen_window_check2(dc, RRRN_S, RRRN_T)) { \ - TCGv_i32 addr = tcg_temp_new_i32(); \ - tcg_gen_addi_i32(addr, cpu_R[RRRN_S], RRRN_R << 2); \ - gen_load_store_alignment(dc, 2, addr, false); \ - tcg_gen_qemu_##type(cpu_R[RRRN_T], addr, dc->cring); \ - tcg_temp_free(addr); \ - } \ - } while (0) - - case 8: /*L32I.Nn*/ - gen_narrow_load_store(ld32u); - break; - - case 9: /*S32I.Nn*/ - gen_narrow_load_store(st32); - break; -#undef gen_narrow_load_store - - case 10: /*ADD.Nn*/ - if (gen_window_check3(dc, RRRN_R, RRRN_S, RRRN_T)) { - tcg_gen_add_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], cpu_R[RRRN_T]); - } - break; - - case 11: /*ADDI.Nn*/ - if (gen_window_check2(dc, RRRN_R, RRRN_S)) { - tcg_gen_addi_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], - RRRN_T ? RRRN_T : -1); - } - break; - - case 12: /*ST2n*/ - if (!gen_window_check1(dc, RRRN_S)) { - break; - } - if (RRRN_T < 8) { /*MOVI.Nn*/ - tcg_gen_movi_i32(cpu_R[RRRN_S], - RRRN_R | (RRRN_T << 4) | - ((RRRN_T & 6) == 6 ? 0xffffff80 : 0)); - } else { /*BEQZ.Nn*/ /*BNEZ.Nn*/ - TCGCond eq_ne = (RRRN_T & 4) ? TCG_COND_NE : TCG_COND_EQ; - - gen_brcondi(dc, eq_ne, cpu_R[RRRN_S], 0, - 4 + (RRRN_R | ((RRRN_T & 3) << 4))); - } - break; - - case 13: /*ST3n*/ - switch (RRRN_R) { - case 0: /*MOV.Nn*/ - if (gen_window_check2(dc, RRRN_S, RRRN_T)) { - tcg_gen_mov_i32(cpu_R[RRRN_T], cpu_R[RRRN_S]); - } - break; - - case 15: /*S3*/ - switch (RRRN_T) { - case 0: /*RET.Nn*/ - gen_jump(dc, cpu_R[0]); - break; - - case 1: /*RETW.Nn*/ - HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); - { - TCGv_i32 tmp = tcg_const_i32(dc->pc); - gen_helper_retw(tmp, cpu_env, tmp); - gen_jump(dc, tmp); - tcg_temp_free(tmp); - } - break; - - case 2: /*BREAK.Nn*/ - HAS_OPTION(XTENSA_OPTION_DEBUG); - if (dc->debug) { - gen_debug_exception(dc, DEBUGCAUSE_BN); - } - break; - - case 3: /*NOP.Nn*/ - break; - - case 6: /*ILL.Nn*/ - gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); - break; - - default: /*reserved*/ - RESERVED(); - break; - } - break; - - default: /*reserved*/ - RESERVED(); - break; + ops = dc->config->opcode_ops[opc]; + if (ops) { + ops->translate(dc, arg, ops->par); + } else { + qemu_log_mask(LOG_GUEST_ERROR, + "unimplemented opcode '%s' in slot %d (pc = %08x)\n", + xtensa_opcode_name(isa, opc), slot, dc->pc); + gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); + return; } - break; - - default: /*reserved*/ - RESERVED(); - break; } - if (dc->is_jmp == DISAS_NEXT) { gen_check_loop_end(dc, 0); } dc->pc = dc->next_pc; - - return; - -invalid_opcode: - qemu_log_mask(LOG_GUEST_ERROR, "INVALID(pc = %08x)\n", dc->pc); - gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); -#undef HAS_OPTION } static inline unsigned xtensa_insn_len(CPUXtensaState *env, DisasContext *dc) { uint8_t b0 = cpu_ldub_code(env, dc->pc); - return xtensa_op0_insn_len(OP0); + return xtensa_op0_insn_len(dc, b0); } static void gen_ibreak_check(CPUXtensaState *env, DisasContext *dc) @@ -3153,6 +1089,11 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) dc.window = ((tb->flags & XTENSA_TBFLAG_WINDOW_MASK) >> XTENSA_TBFLAG_WINDOW_SHIFT); + if (dc.config->isa) { + dc.insnbuf = xtensa_insnbuf_alloc(dc.config->isa); + dc.slotbuf = xtensa_insnbuf_alloc(dc.config->isa); + } + init_litbase(&dc); init_sar_tracker(&dc); if (dc.icount) { @@ -3233,6 +1174,10 @@ done: if (dc.icount) { tcg_temp_free(dc.next_icount); } + if (dc.config->isa) { + xtensa_insnbuf_free(dc.config->isa, dc.insnbuf); + xtensa_insnbuf_free(dc.config->isa, dc.slotbuf); + } if (tb_cflags(tb) & CF_LAST_IO) { gen_io_end();