static void disas_xtensa_insn(DisasContext *dc)

{

#define HAS_OPTION_BITS(opt) do { \

        if (!option_bits_enabled(dc, opt)) { \

            qemu_log("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("TBD(pc = %08x): %s:%d\n", dc->pc, __FILE__, __LINE__)

#define RESERVED() do { \

        qemu_log("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 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 = ldub_code(dc->pc);

    uint8_t b1 = ldub_code(dc->pc + 1);

    uint8_t b2 = 0;



    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

    };



    if (OP0 >= 8) {

        dc->next_pc = dc->pc + 2;

        HAS_OPTION(XTENSA_OPTION_CODE_DENSITY);

    } else {

        dc->next_pc = dc->pc + 3;

        b2 = ldub_code(dc->pc + 2);

    }



    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*/

                            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_advance_ccount(dc);

                                gen_helper_retw(tmp, tmp);

                                gen_jump(dc, tmp);

                                tcg_temp_free(tmp);

                            }

                            break;



                        case 3: /*reserved*/

                            RESERVED();

                            break;

                        }

                        break;



                    case 3: /*CALLX*/

                        gen_window_check2(dc, CALLX_S, CALLX_N << 2);

                        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);

                    gen_window_check2(dc, RRR_T, RRR_S);

                    {

                        TCGv_i32 pc = tcg_const_i32(dc->pc);

                        gen_advance_ccount(dc);

                        gen_helper_movsp(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*/

                            gen_check_privilege(dc);

                            tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_EXCM);

                            gen_helper_check_interrupts(cpu_env);

                            gen_jump(dc, cpu_SR[EPC1]);

                            break;



                        case 1: /*RFUEx*/

                            RESERVED();

                            break;



                        case 2: /*RFDEx*/

                            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);

                            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();

                                gen_helper_check_interrupts(cpu_env);

                                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) {

                            gen_check_privilege(dc);

                            tcg_gen_mov_i32(cpu_SR[PS],

                                    cpu_SR[EPS2 + RRR_S - 2]);

                            gen_helper_check_interrupts(cpu_env);

                            gen_jump(dc, cpu_SR[EPC1 + RRR_S - 1]);

                        } else {

                            qemu_log("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) {

                            gen_check_privilege(dc);

                            gen_helper_simcall(cpu_env);

                        } else {

                            qemu_log("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);

                    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_helper_check_interrupts(cpu_env);

                    gen_jumpi_check_loop_end(dc, 0);

                    break;



                case 7: /*WAITIx*/

                    HAS_OPTION(XTENSA_OPTION_INTERRUPT);

                    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*/

                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*/

                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*/

                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*/

                    gen_window_check1(dc, RRR_S);

                    gen_right_shift_sar(dc, cpu_R[RRR_S]);

                    break;



                case 1: /*SSL*/

                    gen_window_check1(dc, RRR_S);

                    gen_left_shift_sar(dc, cpu_R[RRR_S]);

                    break;



                case 2: /*SSA8L*/

                    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*/

                    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*/

                    TBD();

                    break;



                case 7: /*WER*/

                    TBD();

                    break;



                case 8: /*ROTWw*/

                    HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);

                    gen_check_privilege(dc);

                    {

                        TCGv_i32 tmp = tcg_const_i32(

                                RRR_T | ((RRR_T & 8) ? 0xfffffff0 : 0));

                        gen_helper_rotw(tmp);

                        tcg_temp_free(tmp);

                        reset_used_window(dc);

                    }

                    break;



                case 14: /*NSAu*/

                    HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA);

                    gen_window_check2(dc, RRR_S, RRR_T);

                    gen_helper_nsa(cpu_R[RRR_T], cpu_R[RRR_S]);

                    break;



                case 15: /*NSAUu*/

                    HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA);

                    gen_window_check2(dc, RRR_S, RRR_T);

                    gen_helper_nsau(cpu_R[RRR_T], cpu_R[RRR_S]);

                    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));

                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_R[RRR_S], dtlb);

                        break;



                    case 4: /*IITLB*/ /*IDTLB*/

                        gen_helper_itlb(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_R[RRR_S], dtlb);

                        break;



                    case 6: /*WITLB*/ /*WDTLB*/

                        gen_helper_wtlb(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_R[RRR_S], dtlb);

                        break;



                    default:

                        tcg_temp_free(dtlb);

                        RESERVED();

                        break;

                    }

                    tcg_temp_free(dtlb);

                }

                break;



            case 6: /*RT0*/

                gen_window_check2(dc, RRR_R, RRR_T);

                switch (RRR_S) {

                case 0: /*NEG*/

                    tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]);

                    break;



                case 1: /*ABS*/

                    {

                        int label = gen_new_label();

                        tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_T]);

                        tcg_gen_brcondi_i32(

                                TCG_COND_GE, cpu_R[RRR_R], 0, label);

                        tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]);

                        gen_set_label(label);

                    }

                    break;



                default: /*reserved*/

                    RESERVED();

                    break;

                }

                break;



            case 7: /*reserved*/

                RESERVED();

                break;



            case 8: /*ADD*/

                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:

                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*/

                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:

                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:

                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:

                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*/

                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*/

                {

                    TCGv_i32 tmp = tcg_temp_new_i32();

                    if (RSR_SR >= 64) {

                        gen_check_privilege(dc);

                    }

                    gen_window_check1(dc, RRR_T);

                    tcg_gen_mov_i32(tmp, cpu_R[RRR_T]);

                    gen_rsr(dc, cpu_R[RRR_T], RSR_SR);

                    gen_wsr(dc, RSR_SR, tmp);

                    tcg_temp_free(tmp);

                    if (!sregnames[RSR_SR]) {

                        TBD();

                    }

                }

                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_trunc_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*/

                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*/

                gen_window_check2(dc, RRR_R, RRR_T);

                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*/

                gen_window_check2(dc, RRR_R, RRR_S);

                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*/

                gen_window_check2(dc, RRR_R, RRR_T);

                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);

                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);

                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);

            }



            if (OP2 >= 12) {

                HAS_OPTION(XTENSA_OPTION_32_BIT_IDIV);

                int 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_i64 r = tcg_temp_new_i64();

                    TCGv_i64 s = tcg_temp_new_i64();

                    TCGv_i64 t = tcg_temp_new_i64();



                    if (OP2 == 10) {

                        tcg_gen_extu_i32_i64(s, cpu_R[RRR_S]);

                        tcg_gen_extu_i32_i64(t, cpu_R[RRR_T]);

                    } else {

                        tcg_gen_ext_i32_i64(s, cpu_R[RRR_S]);

                        tcg_gen_ext_i32_i64(t, cpu_R[RRR_T]);

                    }

                    tcg_gen_mul_i64(r, s, t);

                    tcg_gen_shri_i64(r, r, 32);

                    tcg_gen_trunc_i64_i32(cpu_R[RRR_R], r);



                    tcg_temp_free_i64(r);

                    tcg_temp_free_i64(s);

                    tcg_temp_free_i64(t);

                }

                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*/

                {

                    int label1 = gen_new_label();

                    int 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 (RSR_SR >= 64) {

                    gen_check_privilege(dc);

                }

                gen_window_check1(dc, RRR_T);

                gen_rsr(dc, cpu_R[RRR_T], RSR_SR);

                if (!sregnames[RSR_SR]) {

                    TBD();

                }

                break;



            case 1: /*WSR*/

                if (RSR_SR >= 64) {

                    gen_check_privilege(dc);

                }

                gen_window_check1(dc, RRR_T);

                gen_wsr(dc, RSR_SR, cpu_R[RRR_T]);

                if (!sregnames[RSR_SR]) {

                    TBD();

                }

                break;



            case 2: /*SEXTu*/

                HAS_OPTION(XTENSA_OPTION_MISC_OP_SEXT);

                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);

                gen_window_check2(dc, RRR_R, RRR_S);

                {

                    TCGv_i32 tmp1 = tcg_temp_new_i32();

                    TCGv_i32 tmp2 = tcg_temp_new_i32();

                    int label = gen_new_label();



                    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_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]);

                    tcg_gen_brcondi_i32(TCG_COND_EQ, tmp2, 0, label);



                    tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 31);

                    tcg_gen_xori_i32(cpu_R[RRR_R], tmp1,

                            0xffffffff >> (25 - RRR_T));



                    gen_set_label(label);



                    tcg_temp_free(tmp1);

                    tcg_temp_free(tmp2);

                }

                break;



            case 4: /*MINu*/

            case 5: /*MAXu*/

            case 6: /*MINUu*/

            case 7: /*MAXUu*/

                HAS_OPTION(XTENSA_OPTION_MISC_OP_MINMAX);

                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

                    };

                    int label = gen_new_label();



                    if (RRR_R != RRR_T) {

                        tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]);

                        tcg_gen_brcond_i32(cond[OP2 - 4],

                                cpu_R[RRR_S], cpu_R[RRR_T], label);

                        tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_T]);

                    } else {

                        tcg_gen_brcond_i32(cond[OP2 - 4],

                                cpu_R[RRR_T], cpu_R[RRR_S], label);

                        tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]);

                    }

                    gen_set_label(label);

                }

                break;



            case 8: /*MOVEQZ*/

            case 9: /*MOVNEZ*/

            case 10: /*MOVLTZ*/

            case 11: /*MOVGEZ*/

                gen_window_check3(dc, RRR_R, RRR_S, RRR_T);

                {

                    static const TCGCond cond[] = {

                        TCG_COND_NE,

                        TCG_COND_EQ,

                        TCG_COND_GE,

                        TCG_COND_LT

                    };

                    int label = gen_new_label();

                    tcg_gen_brcondi_i32(cond[OP2 - 8], cpu_R[RRR_T], 0, label);

                    tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]);

                    gen_set_label(label);

                }

                break;



            case 12: /*MOVFp*/

            case 13: /*MOVTp*/

                HAS_OPTION(XTENSA_OPTION_BOOLEAN);

                gen_window_check2(dc, RRR_R, RRR_S);

                {

                    int label = gen_new_label();

                    TCGv_i32 tmp = tcg_temp_new_i32();



                    tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T);

                    tcg_gen_brcondi_i32(

                            OP2 & 1 ? TCG_COND_EQ : TCG_COND_NE,

                            tmp, 0, label);

                    tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]);

                    gen_set_label(label);

                    tcg_temp_free(tmp);

                }

                break;



            case 14: /*RUR*/

                gen_window_check1(dc, RRR_R);

                {

                    int st = (RRR_S << 4) + RRR_T;

                    if (uregnames[st]) {

                        tcg_gen_mov_i32(cpu_R[RRR_R], cpu_UR[st]);

                    } else {

                        qemu_log("RUR %d not implemented, ", st);

                        TBD();

                    }

                }

                break;



            case 15: /*WUR*/

                gen_window_check1(dc, RRR_T);

                {

                    if (uregnames[RSR_SR]) {

                        tcg_gen_mov_i32(cpu_UR[RSR_SR], cpu_R[RRR_T]);

                    } else {

                        qemu_log("WUR %d not implemented, ", RSR_SR);

                        TBD();

                    }

                }

                break;



            }

            break;



        case 4: /*EXTUI*/

        case 5:

            gen_window_check2(dc, RRR_R, RRR_T);

            {

                int shiftimm = RRR_S | (OP1 << 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*/

            HAS_OPTION(XTENSA_OPTION_COPROCESSOR);

            TBD();

            break;



        case 9: /*LSC4*/

            gen_window_check2(dc, RRR_S, RRR_T);

            switch (OP2) {

            case 0: /*L32E*/

                HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);

                gen_check_privilege(dc);

                {

                    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);

                gen_check_privilege(dc);

                {

                    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;



            default:

                RESERVED();

                break;

            }

            break;



        case 10: /*FP0*/

            HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);

            TBD();

            break;



        case 11: /*FP1*/

            HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);

            TBD();

            break;



        default: /*reserved*/

            RESERVED();

            break;

        }

        break;



    case 1: /*L32R*/

        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 { \

            TCGv_i32 addr = tcg_temp_new_i32(); \

            gen_window_check2(dc, RRI8_S, RRI8_T); \

            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;



        case 7: /*CACHEc*/

            if (RRI8_T < 8) {

                HAS_OPTION(XTENSA_OPTION_DCACHE);

            }



            switch (RRI8_T) {

            case 0: /*DPFRc*/

                break;



            case 1: /*DPFWc*/

                break;



            case 2: /*DPFROc*/

                break;



            case 3: /*DPFWOc*/

                break;



            case 4: /*DHWBc*/

                break;



            case 5: /*DHWBIc*/

                break;



            case 6: /*DHIc*/

                break;



            case 7: /*DIIc*/

                break;



            case 8: /*DCEc*/

                switch (OP1) {

                case 0: /*DPFLl*/

                    HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);

                    break;



                case 2: /*DHUl*/

                    HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);

                    break;



                case 3: /*DIUl*/

                    HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);

                    break;



                case 4: /*DIWBc*/

                    HAS_OPTION(XTENSA_OPTION_DCACHE);

                    break;



                case 5: /*DIWBIc*/

                    HAS_OPTION(XTENSA_OPTION_DCACHE);

                    break;



                default: /*reserved*/

                    RESERVED();

                    break;



                }

                break;



            case 12: /*IPFc*/

                HAS_OPTION(XTENSA_OPTION_ICACHE);

                break;



            case 13: /*ICEc*/

                switch (OP1) {

                case 0: /*IPFLl*/

                    HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);

                    break;



                case 2: /*IHUl*/

                    HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);

                    break;



                case 3: /*IIUl*/

                    HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);

                    break;



                default: /*reserved*/

                    RESERVED();

                    break;

                }

                break;



            case 14: /*IHIc*/

                HAS_OPTION(XTENSA_OPTION_ICACHE);

                break;



            case 15: /*IIIc*/

                HAS_OPTION(XTENSA_OPTION_ICACHE);

                break;



            default: /*reserved*/

                RESERVED();

                break;

            }

            break;



        case 9: /*L16SI*/

            gen_load_store(ld16s, 1);

            break;

#undef gen_load_store



        case 10: /*MOVI*/

            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 { \

            TCGv_i32 addr = tcg_temp_local_new_i32(); \

            gen_window_check2(dc, RRI8_S, RRI8_T); \

            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*/

            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*/

            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);

            gen_window_check2(dc, RRI8_S, RRI8_T);

            {

                int label = gen_new_label();

                TCGv_i32 tmp = tcg_temp_local_new_i32();

                TCGv_i32 addr = tcg_temp_local_new_i32();



                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);

                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(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*/

        HAS_OPTION(XTENSA_OPTION_COPROCESSOR);

        TBD();

        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);

                }

                if (!is_m2_sr) {

                    gen_window_check1(dc, RRR_T);

                }

            }



            {

                TCGv_i32 vaddr = tcg_temp_new_i32();

                TCGv_i32 mem32 = tcg_temp_new_i32();



                if (ld_offset) {

                    gen_window_check1(dc, RRR_S);

                    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 res = tcg_temp_new_i32();

                        TCGv_i64 res64 = tcg_temp_new_i64();

                        TCGv_i64 tmp = tcg_temp_new_i64();



                        tcg_gen_mul_i32(res, m1, m2);

                        tcg_gen_ext_i32_i64(res64, res);

                        tcg_gen_concat_i32_i64(tmp,

                                cpu_SR[ACCLO], cpu_SR[ACCHI]);

                        if (op == MAC16_MULA) {

                            tcg_gen_add_i64(tmp, tmp, res64);

                        } else {

                            tcg_gen_sub_i64(tmp, tmp, res64);

                        }

                        tcg_gen_trunc_i64_i32(cpu_SR[ACCLO], tmp);

                        tcg_gen_shri_i64(tmp, tmp, 32);

                        tcg_gen_trunc_i64_i32(cpu_SR[ACCHI], tmp);

                        tcg_gen_ext8s_i32(cpu_SR[ACCHI], cpu_SR[ACCHI]);



                        tcg_temp_free(res);

                        tcg_temp_free_i64(res64);

                        tcg_temp_free_i64(tmp);

                    }

                    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);

            gen_window_check1(dc, CALL_N << 2);

            gen_callwi(dc, CALL_N,

                    (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0);

            break;

        }

        break;



    case 6: /*SI*/

        switch (CALL_N) {

        case 0: /*J*/

            gen_jumpi(dc, dc->pc + 4 + CALL_OFFSET_SE, 0);

            break;



        case 1: /*BZ*/

            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*/

            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);

                    gen_advance_ccount(dc);

                    gen_helper_entry(pc, s, imm);

                    tcg_temp_free(imm);

                    tcg_temp_free(s);

                    tcg_temp_free(pc);

                    reset_used_window(dc);

                }

                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);

                    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_wsr_lend(dc, LEND, tmp);

                        tcg_temp_free(tmp);



                        if (BRI8_R > 8) {

                            int 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*/

                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);

                break;

            }

            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*/

                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*/

                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*/

                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*/

                gen_window_check2(dc, RRI8_S, RRI8_T);

                {

                    TCGv_i32 bit = tcg_const_i32(1);

                    TCGv_i32 tmp = tcg_temp_new_i32();

                    tcg_gen_andi_i32(tmp, cpu_R[RRI8_T], 0x1f);

                    tcg_gen_shl_i32(bit, bit, tmp);

                    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:

                gen_window_check1(dc, RRI8_S);

                {

                    TCGv_i32 tmp = tcg_temp_new_i32();

                    tcg_gen_andi_i32(tmp, cpu_R[RRI8_S],

                            1 << (((RRI8_R & 1) << 4) | RRI8_T));

                    gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE);

                    tcg_temp_free(tmp);

                }

                break;



            }

        }

        break;



#define gen_narrow_load_store(type) do { \

            TCGv_i32 addr = tcg_temp_new_i32(); \

            gen_window_check2(dc, RRRN_S, RRRN_T); \

            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*/

        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*/

        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*/

        gen_window_check1(dc, RRRN_S);

        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*/

            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_advance_ccount(dc);

                    gen_helper_retw(tmp, 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;

        }

        break;



    default: /*reserved*/

        RESERVED();

        break;

    }



    gen_check_loop_end(dc, 0);

    dc->pc = dc->next_pc;



    return;



invalid_opcode:

    qemu_log("INVALID(pc = %08x)\n", dc->pc);

    gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);

#undef HAS_OPTION

}
