/*
   SPARC translation

   Copyright (C) 2003 Thomas M. Ogrisegg <tom@fnord.at>
   Copyright (C) 2003-2005 Fabrice Bellard

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

/*
   TODO-list:

   Rest of V9 instructions, VIS instructions
   NPC/PC static optimisations (use JUMP_TB when possible)
   Optimize synthetic instructions
   Optional alignment check
   128-bit float
   Tagged add/sub
*/

#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>

#include "cpu.h"
#include "exec-all.h"
#include "disas.h"

#define DEBUG_DISAS

#define DYNAMIC_PC  1 /* dynamic pc value */
#define JUMP_PC     2 /* dynamic pc value which takes only two values
                         according to jump_pc[T2] */

typedef struct DisasContext {
    target_ulong pc;	/* current Program Counter: integer or DYNAMIC_PC */
    target_ulong npc;	/* next PC: integer or DYNAMIC_PC or JUMP_PC */
    target_ulong jump_pc[2]; /* used when JUMP_PC pc value is used */
    int is_br;
    int mem_idx;
    int fpu_enabled;
    struct TranslationBlock *tb;
} DisasContext;

static uint16_t *gen_opc_ptr;
static uint32_t *gen_opparam_ptr;
extern FILE *logfile;
extern int loglevel;

enum {
#define DEF(s,n,copy_size) INDEX_op_ ## s,
#include "opc.h"
#undef DEF
    NB_OPS
};

#include "gen-op.h"

// This function uses non-native bit order
#define GET_FIELD(X, FROM, TO) \
  ((X) >> (31 - (TO)) & ((1 << ((TO) - (FROM) + 1)) - 1))

// This function uses the order in the manuals, i.e. bit 0 is 2^0
#define GET_FIELD_SP(X, FROM, TO) \
    GET_FIELD(X, 31 - (TO), 31 - (FROM))

#define GET_FIELDs(x,a,b) sign_extend (GET_FIELD(x,a,b), (b) - (a) + 1)
#define GET_FIELD_SPs(x,a,b) sign_extend (GET_FIELD_SP(x,a,b), 32 - ((b) - (a) + 1))

#ifdef TARGET_SPARC64
#define DFPREG(r) (((r & 1) << 6) | (r & 0x1e))
#else
#define DFPREG(r) (r)
#endif

#ifdef USE_DIRECT_JUMP
#define TBPARAM(x)
#else
#define TBPARAM(x) (long)(x)
#endif

static int sign_extend(int x, int len)
{
    len = 32 - len;
    return (x << len) >> len;
}

#define IS_IMM (insn & (1<<13))

static void disas_sparc_insn(DisasContext * dc);

static GenOpFunc *gen_op_movl_TN_reg[2][32] = {
    {
     gen_op_movl_g0_T0,
     gen_op_movl_g1_T0,
     gen_op_movl_g2_T0,
     gen_op_movl_g3_T0,
     gen_op_movl_g4_T0,
     gen_op_movl_g5_T0,
     gen_op_movl_g6_T0,
     gen_op_movl_g7_T0,
     gen_op_movl_o0_T0,
     gen_op_movl_o1_T0,
     gen_op_movl_o2_T0,
     gen_op_movl_o3_T0,
     gen_op_movl_o4_T0,
     gen_op_movl_o5_T0,
     gen_op_movl_o6_T0,
     gen_op_movl_o7_T0,
     gen_op_movl_l0_T0,
     gen_op_movl_l1_T0,
     gen_op_movl_l2_T0,
     gen_op_movl_l3_T0,
     gen_op_movl_l4_T0,
     gen_op_movl_l5_T0,
     gen_op_movl_l6_T0,
     gen_op_movl_l7_T0,
     gen_op_movl_i0_T0,
     gen_op_movl_i1_T0,
     gen_op_movl_i2_T0,
     gen_op_movl_i3_T0,
     gen_op_movl_i4_T0,
     gen_op_movl_i5_T0,
     gen_op_movl_i6_T0,
     gen_op_movl_i7_T0,
     },
    {
     gen_op_movl_g0_T1,
     gen_op_movl_g1_T1,
     gen_op_movl_g2_T1,
     gen_op_movl_g3_T1,
     gen_op_movl_g4_T1,
     gen_op_movl_g5_T1,
     gen_op_movl_g6_T1,
     gen_op_movl_g7_T1,
     gen_op_movl_o0_T1,
     gen_op_movl_o1_T1,
     gen_op_movl_o2_T1,
     gen_op_movl_o3_T1,
     gen_op_movl_o4_T1,
     gen_op_movl_o5_T1,
     gen_op_movl_o6_T1,
     gen_op_movl_o7_T1,
     gen_op_movl_l0_T1,
     gen_op_movl_l1_T1,
     gen_op_movl_l2_T1,
     gen_op_movl_l3_T1,
     gen_op_movl_l4_T1,
     gen_op_movl_l5_T1,
     gen_op_movl_l6_T1,
     gen_op_movl_l7_T1,
     gen_op_movl_i0_T1,
     gen_op_movl_i1_T1,
     gen_op_movl_i2_T1,
     gen_op_movl_i3_T1,
     gen_op_movl_i4_T1,
     gen_op_movl_i5_T1,
     gen_op_movl_i6_T1,
     gen_op_movl_i7_T1,
     }
};

static GenOpFunc *gen_op_movl_reg_TN[3][32] = {
    {
     gen_op_movl_T0_g0,
     gen_op_movl_T0_g1,
     gen_op_movl_T0_g2,
     gen_op_movl_T0_g3,
     gen_op_movl_T0_g4,
     gen_op_movl_T0_g5,
     gen_op_movl_T0_g6,
     gen_op_movl_T0_g7,
     gen_op_movl_T0_o0,
     gen_op_movl_T0_o1,
     gen_op_movl_T0_o2,
     gen_op_movl_T0_o3,
     gen_op_movl_T0_o4,
     gen_op_movl_T0_o5,
     gen_op_movl_T0_o6,
     gen_op_movl_T0_o7,
     gen_op_movl_T0_l0,
     gen_op_movl_T0_l1,
     gen_op_movl_T0_l2,
     gen_op_movl_T0_l3,
     gen_op_movl_T0_l4,
     gen_op_movl_T0_l5,
     gen_op_movl_T0_l6,
     gen_op_movl_T0_l7,
     gen_op_movl_T0_i0,
     gen_op_movl_T0_i1,
     gen_op_movl_T0_i2,
     gen_op_movl_T0_i3,
     gen_op_movl_T0_i4,
     gen_op_movl_T0_i5,
     gen_op_movl_T0_i6,
     gen_op_movl_T0_i7,
     },
    {
     gen_op_movl_T1_g0,
     gen_op_movl_T1_g1,
     gen_op_movl_T1_g2,
     gen_op_movl_T1_g3,
     gen_op_movl_T1_g4,
     gen_op_movl_T1_g5,
     gen_op_movl_T1_g6,
     gen_op_movl_T1_g7,
     gen_op_movl_T1_o0,
     gen_op_movl_T1_o1,
     gen_op_movl_T1_o2,
     gen_op_movl_T1_o3,
     gen_op_movl_T1_o4,
     gen_op_movl_T1_o5,
     gen_op_movl_T1_o6,
     gen_op_movl_T1_o7,
     gen_op_movl_T1_l0,
     gen_op_movl_T1_l1,
     gen_op_movl_T1_l2,
     gen_op_movl_T1_l3,
     gen_op_movl_T1_l4,
     gen_op_movl_T1_l5,
     gen_op_movl_T1_l6,
     gen_op_movl_T1_l7,
     gen_op_movl_T1_i0,
     gen_op_movl_T1_i1,
     gen_op_movl_T1_i2,
     gen_op_movl_T1_i3,
     gen_op_movl_T1_i4,
     gen_op_movl_T1_i5,
     gen_op_movl_T1_i6,
     gen_op_movl_T1_i7,
     },
    {
     gen_op_movl_T2_g0,
     gen_op_movl_T2_g1,
     gen_op_movl_T2_g2,
     gen_op_movl_T2_g3,
     gen_op_movl_T2_g4,
     gen_op_movl_T2_g5,
     gen_op_movl_T2_g6,
     gen_op_movl_T2_g7,
     gen_op_movl_T2_o0,
     gen_op_movl_T2_o1,
     gen_op_movl_T2_o2,
     gen_op_movl_T2_o3,
     gen_op_movl_T2_o4,
     gen_op_movl_T2_o5,
     gen_op_movl_T2_o6,
     gen_op_movl_T2_o7,
     gen_op_movl_T2_l0,
     gen_op_movl_T2_l1,
     gen_op_movl_T2_l2,
     gen_op_movl_T2_l3,
     gen_op_movl_T2_l4,
     gen_op_movl_T2_l5,
     gen_op_movl_T2_l6,
     gen_op_movl_T2_l7,
     gen_op_movl_T2_i0,
     gen_op_movl_T2_i1,
     gen_op_movl_T2_i2,
     gen_op_movl_T2_i3,
     gen_op_movl_T2_i4,
     gen_op_movl_T2_i5,
     gen_op_movl_T2_i6,
     gen_op_movl_T2_i7,
     }
};

static GenOpFunc1 *gen_op_movl_TN_im[3] = {
    gen_op_movl_T0_im,
    gen_op_movl_T1_im,
    gen_op_movl_T2_im
};

// Sign extending version
static GenOpFunc1 * const gen_op_movl_TN_sim[3] = {
    gen_op_movl_T0_sim,
    gen_op_movl_T1_sim,
    gen_op_movl_T2_sim
};

#ifdef TARGET_SPARC64
#define GEN32(func, NAME) \
static GenOpFunc *NAME ## _table [64] = {                                     \
NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3,                                   \
NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7,                                   \
NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11,                                 \
NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15,                               \
NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19,                               \
NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23,                               \
NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27,                               \
NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31,                               \
NAME ## 32, 0, NAME ## 34, 0, NAME ## 36, 0, NAME ## 38, 0,                   \
NAME ## 40, 0, NAME ## 42, 0, NAME ## 44, 0, NAME ## 46, 0,                   \
NAME ## 48, 0, NAME ## 50, 0, NAME ## 52, 0, NAME ## 54, 0,                   \
NAME ## 56, 0, NAME ## 58, 0, NAME ## 60, 0, NAME ## 62, 0,                   \
};                                                                            \
static inline void func(int n)                                                \
{                                                                             \
    NAME ## _table[n]();                                                      \
}
#else
#define GEN32(func, NAME) \
static GenOpFunc *NAME ## _table [32] = {                                     \
NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3,                                   \
NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7,                                   \
NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11,                                 \
NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15,                               \
NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19,                               \
NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23,                               \
NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27,                               \
NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31,                               \
};                                                                            \
static inline void func(int n)                                                \
{                                                                             \
    NAME ## _table[n]();                                                      \
}
#endif

/* floating point registers moves */
GEN32(gen_op_load_fpr_FT0, gen_op_load_fpr_FT0_fprf);
GEN32(gen_op_load_fpr_FT1, gen_op_load_fpr_FT1_fprf);
GEN32(gen_op_store_FT0_fpr, gen_op_store_FT0_fpr_fprf);
GEN32(gen_op_store_FT1_fpr, gen_op_store_FT1_fpr_fprf);

GEN32(gen_op_load_fpr_DT0, gen_op_load_fpr_DT0_fprf);
GEN32(gen_op_load_fpr_DT1, gen_op_load_fpr_DT1_fprf);
GEN32(gen_op_store_DT0_fpr, gen_op_store_DT0_fpr_fprf);
GEN32(gen_op_store_DT1_fpr, gen_op_store_DT1_fpr_fprf);

#ifdef TARGET_SPARC64
// 'a' versions allowed to user depending on asi
#if defined(CONFIG_USER_ONLY)
#define supervisor(dc) 0
#define gen_op_ldst(name)        gen_op_##name##_raw()
#define OP_LD_TABLE(width)						\
    static void gen_op_##width##a(int insn, int is_ld, int size, int sign) \
    {									\
	int asi, offset;						\
									\
	if (IS_IMM) {							\
	    offset = GET_FIELD(insn, 25, 31);				\
	    if (is_ld)							\
		gen_op_ld_asi_reg(offset, size, sign);			\
	    else							\
		gen_op_st_asi_reg(offset, size, sign);			\
	    return;							\
	}								\
	asi = GET_FIELD(insn, 19, 26);					\
	switch (asi) {							\
	case 0x80: /* Primary address space */				\
	    gen_op_##width##_raw();					\
	    break;							\
	case 0x82: /* Primary address space, non-faulting load */       \
	    gen_op_##width##_raw();					\
	    break;							\
	default:							\
            break;							\
	}								\
    }

#else
#define gen_op_ldst(name)        (*gen_op_##name[dc->mem_idx])()
#define OP_LD_TABLE(width)						\
    static GenOpFunc *gen_op_##width[] = {				\
	&gen_op_##width##_user,						\
	&gen_op_##width##_kernel,					\
    };									\
									\
    static void gen_op_##width##a(int insn, int is_ld, int size, int sign) \
    {									\
	int asi, offset;						\
									\
	if (IS_IMM) {							\
	    offset = GET_FIELD(insn, 25, 31);				\
	    if (is_ld)							\
		gen_op_ld_asi_reg(offset, size, sign);			\
	    else							\
		gen_op_st_asi_reg(offset, size, sign);			\
	    return;							\
	}								\
	asi = GET_FIELD(insn, 19, 26);					\
	if (is_ld)							\
	    gen_op_ld_asi(asi, size, sign);				\
	else								\
	    gen_op_st_asi(asi, size, sign);				\
    }

#define supervisor(dc) (dc->mem_idx == 1)
#endif
#else
#if defined(CONFIG_USER_ONLY)
#define gen_op_ldst(name)        gen_op_##name##_raw()
#define OP_LD_TABLE(width)
#define supervisor(dc) 0
#else
#define gen_op_ldst(name)        (*gen_op_##name[dc->mem_idx])()
#define OP_LD_TABLE(width)						      \
static GenOpFunc *gen_op_##width[] = {                                        \
    &gen_op_##width##_user,                                                   \
    &gen_op_##width##_kernel,                                                 \
};                                                                            \
                                                                              \
static void gen_op_##width##a(int insn, int is_ld, int size, int sign)        \
{                                                                             \
    int asi;                                                                  \
                                                                              \
    asi = GET_FIELD(insn, 19, 26);                                            \
    switch (asi) {                                                            \
	case 10: /* User data access */                                       \
	    gen_op_##width##_user();                                          \
	    break;                                                            \
	case 11: /* Supervisor data access */                                 \
	    gen_op_##width##_kernel();                                        \
	    break;                                                            \
        case 0x20 ... 0x2f: /* MMU passthrough */			      \
	    if (is_ld)                                                        \
		gen_op_ld_asi(asi, size, sign);				      \
	    else                                                              \
		gen_op_st_asi(asi, size, sign);				      \
	    break;                                                            \
	default:                                                              \
	    if (is_ld)                                                        \
		gen_op_ld_asi(asi, size, sign);			              \
	    else                                                              \
		gen_op_st_asi(asi, size, sign);				      \
            break;                                                            \
    }                                                                         \
}

#define supervisor(dc) (dc->mem_idx == 1)
#endif
#endif

OP_LD_TABLE(ld);
OP_LD_TABLE(st);
OP_LD_TABLE(ldub);
OP_LD_TABLE(lduh);
OP_LD_TABLE(ldsb);
OP_LD_TABLE(ldsh);
OP_LD_TABLE(stb);
OP_LD_TABLE(sth);
OP_LD_TABLE(std);
OP_LD_TABLE(ldstub);
OP_LD_TABLE(swap);
OP_LD_TABLE(ldd);
OP_LD_TABLE(stf);
OP_LD_TABLE(stdf);
OP_LD_TABLE(ldf);
OP_LD_TABLE(lddf);

#ifdef TARGET_SPARC64
OP_LD_TABLE(ldsw);
OP_LD_TABLE(ldx);
OP_LD_TABLE(stx);
OP_LD_TABLE(cas);
OP_LD_TABLE(casx);
#endif

static inline void gen_movl_imm_TN(int reg, uint32_t imm)
{
    gen_op_movl_TN_im[reg](imm);
}

static inline void gen_movl_imm_T1(uint32_t val)
{
    gen_movl_imm_TN(1, val);
}

static inline void gen_movl_imm_T0(uint32_t val)
{
    gen_movl_imm_TN(0, val);
}

static inline void gen_movl_simm_TN(int reg, int32_t imm)
{
    gen_op_movl_TN_sim[reg](imm);
}

static inline void gen_movl_simm_T1(int32_t val)
{
    gen_movl_simm_TN(1, val);
}

static inline void gen_movl_simm_T0(int32_t val)
{
    gen_movl_simm_TN(0, val);
}

static inline void gen_movl_reg_TN(int reg, int t)
{
    if (reg)
	gen_op_movl_reg_TN[t][reg] ();
    else
	gen_movl_imm_TN(t, 0);
}

static inline void gen_movl_reg_T0(int reg)
{
    gen_movl_reg_TN(reg, 0);
}

static inline void gen_movl_reg_T1(int reg)
{
    gen_movl_reg_TN(reg, 1);
}

static inline void gen_movl_reg_T2(int reg)
{
    gen_movl_reg_TN(reg, 2);
}

static inline void gen_movl_TN_reg(int reg, int t)
{
    if (reg)
	gen_op_movl_TN_reg[t][reg] ();
}

static inline void gen_movl_T0_reg(int reg)
{
    gen_movl_TN_reg(reg, 0);
}

static inline void gen_movl_T1_reg(int reg)
{
    gen_movl_TN_reg(reg, 1);
}

static inline void gen_jmp_im(target_ulong pc)
{
#ifdef TARGET_SPARC64
    if (pc == (uint32_t)pc) {
        gen_op_jmp_im(pc);
    } else {
        gen_op_jmp_im64(pc >> 32, pc);
    }
#else
    gen_op_jmp_im(pc);
#endif
}

static inline void gen_movl_npc_im(target_ulong npc)
{
#ifdef TARGET_SPARC64
    if (npc == (uint32_t)npc) {
        gen_op_movl_npc_im(npc);
    } else {
        gen_op_movq_npc_im64(npc >> 32, npc);
    }
#else
    gen_op_movl_npc_im(npc);
#endif
}

static inline void gen_goto_tb(DisasContext *s, int tb_num, 
                               target_ulong pc, target_ulong npc)
{
    TranslationBlock *tb;

    tb = s->tb;
    if ((pc & TARGET_PAGE_MASK) == (tb->pc & TARGET_PAGE_MASK) &&
        (npc & TARGET_PAGE_MASK) == (tb->pc & TARGET_PAGE_MASK))  {
        /* jump to same page: we can use a direct jump */
        if (tb_num == 0)
            gen_op_goto_tb0(TBPARAM(tb));
        else
            gen_op_goto_tb1(TBPARAM(tb));
        gen_jmp_im(pc);
        gen_movl_npc_im(npc);
        gen_op_movl_T0_im((long)tb + tb_num);
        gen_op_exit_tb();
    } else {
        /* jump to another page: currently not optimized */
        gen_jmp_im(pc);
        gen_movl_npc_im(npc);
        gen_op_movl_T0_0();
        gen_op_exit_tb();
    }
}

static inline void gen_branch2(DisasContext *dc, long tb, target_ulong pc1, target_ulong pc2)
{
    int l1;

    l1 = gen_new_label();

    gen_op_jz_T2_label(l1);

    gen_goto_tb(dc, 0, pc1, pc1 + 4);

    gen_set_label(l1);
    gen_goto_tb(dc, 1, pc2, pc2 + 4);
}

static inline void gen_branch_a(DisasContext *dc, long tb, target_ulong pc1, target_ulong pc2)
{
    int l1;

    l1 = gen_new_label();

    gen_op_jz_T2_label(l1);

    gen_goto_tb(dc, 0, pc2, pc1);

    gen_set_label(l1);
    gen_goto_tb(dc, 1, pc2 + 4, pc2 + 8);
}

static inline void gen_branch(DisasContext *dc, long tb, target_ulong pc, target_ulong npc)
{
    gen_goto_tb(dc, 0, pc, npc);
}

static inline void gen_generic_branch(DisasContext *dc, target_ulong npc1, target_ulong npc2)
{
    int l1, l2;

    l1 = gen_new_label();
    l2 = gen_new_label();
    gen_op_jz_T2_label(l1);

    gen_movl_npc_im(npc1);
    gen_op_jmp_label(l2);

    gen_set_label(l1);
    gen_movl_npc_im(npc2);
    gen_set_label(l2);
}

/* call this function before using T2 as it may have been set for a jump */
static inline void flush_T2(DisasContext * dc)
{
    if (dc->npc == JUMP_PC) {
        gen_generic_branch(dc, dc->jump_pc[0], dc->jump_pc[1]);
        dc->npc = DYNAMIC_PC;
    }
}

static inline void save_npc(DisasContext * dc)
{
    if (dc->npc == JUMP_PC) {
        gen_generic_branch(dc, dc->jump_pc[0], dc->jump_pc[1]);
        dc->npc = DYNAMIC_PC;
    } else if (dc->npc != DYNAMIC_PC) {
        gen_movl_npc_im(dc->npc);
    }
}

static inline void save_state(DisasContext * dc)
{
    gen_jmp_im(dc->pc);
    save_npc(dc);
}

static inline void gen_mov_pc_npc(DisasContext * dc)
{
    if (dc->npc == JUMP_PC) {
        gen_generic_branch(dc, dc->jump_pc[0], dc->jump_pc[1]);
        gen_op_mov_pc_npc();
        dc->pc = DYNAMIC_PC;
    } else if (dc->npc == DYNAMIC_PC) {
        gen_op_mov_pc_npc();
        dc->pc = DYNAMIC_PC;
    } else {
        dc->pc = dc->npc;
    }
}

static GenOpFunc * const gen_cond[2][16] = {
    {
	gen_op_eval_ba,
	gen_op_eval_be,
	gen_op_eval_ble,
	gen_op_eval_bl,
	gen_op_eval_bleu,
	gen_op_eval_bcs,
	gen_op_eval_bneg,
	gen_op_eval_bvs,
	gen_op_eval_bn,
	gen_op_eval_bne,
	gen_op_eval_bg,
	gen_op_eval_bge,
	gen_op_eval_bgu,
	gen_op_eval_bcc,
	gen_op_eval_bpos,
	gen_op_eval_bvc,
    },
    {
#ifdef TARGET_SPARC64
	gen_op_eval_ba,
	gen_op_eval_xbe,
	gen_op_eval_xble,
	gen_op_eval_xbl,
	gen_op_eval_xbleu,
	gen_op_eval_xbcs,
	gen_op_eval_xbneg,
	gen_op_eval_xbvs,
	gen_op_eval_bn,
	gen_op_eval_xbne,
	gen_op_eval_xbg,
	gen_op_eval_xbge,
	gen_op_eval_xbgu,
	gen_op_eval_xbcc,
	gen_op_eval_xbpos,
	gen_op_eval_xbvc,
#endif
    },
};

static GenOpFunc * const gen_fcond[4][16] = {
    {
	gen_op_eval_ba,
	gen_op_eval_fbne,
	gen_op_eval_fblg,
	gen_op_eval_fbul,
	gen_op_eval_fbl,
	gen_op_eval_fbug,
	gen_op_eval_fbg,
	gen_op_eval_fbu,
	gen_op_eval_bn,
	gen_op_eval_fbe,
	gen_op_eval_fbue,
	gen_op_eval_fbge,
	gen_op_eval_fbuge,
	gen_op_eval_fble,
	gen_op_eval_fbule,
	gen_op_eval_fbo,
    },
#ifdef TARGET_SPARC64
    {
	gen_op_eval_ba,
	gen_op_eval_fbne_fcc1,
	gen_op_eval_fblg_fcc1,
	gen_op_eval_fbul_fcc1,
	gen_op_eval_fbl_fcc1,
	gen_op_eval_fbug_fcc1,
	gen_op_eval_fbg_fcc1,
	gen_op_eval_fbu_fcc1,
	gen_op_eval_bn,
	gen_op_eval_fbe_fcc1,
	gen_op_eval_fbue_fcc1,
	gen_op_eval_fbge_fcc1,
	gen_op_eval_fbuge_fcc1,
	gen_op_eval_fble_fcc1,
	gen_op_eval_fbule_fcc1,
	gen_op_eval_fbo_fcc1,
    },
    {
	gen_op_eval_ba,
	gen_op_eval_fbne_fcc2,
	gen_op_eval_fblg_fcc2,
	gen_op_eval_fbul_fcc2,
	gen_op_eval_fbl_fcc2,
	gen_op_eval_fbug_fcc2,
	gen_op_eval_fbg_fcc2,
	gen_op_eval_fbu_fcc2,
	gen_op_eval_bn,
	gen_op_eval_fbe_fcc2,
	gen_op_eval_fbue_fcc2,
	gen_op_eval_fbge_fcc2,
	gen_op_eval_fbuge_fcc2,
	gen_op_eval_fble_fcc2,
	gen_op_eval_fbule_fcc2,
	gen_op_eval_fbo_fcc2,
    },
    {
	gen_op_eval_ba,
	gen_op_eval_fbne_fcc3,
	gen_op_eval_fblg_fcc3,
	gen_op_eval_fbul_fcc3,
	gen_op_eval_fbl_fcc3,
	gen_op_eval_fbug_fcc3,
	gen_op_eval_fbg_fcc3,
	gen_op_eval_fbu_fcc3,
	gen_op_eval_bn,
	gen_op_eval_fbe_fcc3,
	gen_op_eval_fbue_fcc3,
	gen_op_eval_fbge_fcc3,
	gen_op_eval_fbuge_fcc3,
	gen_op_eval_fble_fcc3,
	gen_op_eval_fbule_fcc3,
	gen_op_eval_fbo_fcc3,
    },
#else
    {}, {}, {},
#endif
};

#ifdef TARGET_SPARC64
static void gen_cond_reg(int cond)
{
	switch (cond) {
	case 0x1:
	    gen_op_eval_brz();
	    break;
	case 0x2:
	    gen_op_eval_brlez();
	    break;
	case 0x3:
	    gen_op_eval_brlz();
	    break;
	case 0x5:
	    gen_op_eval_brnz();
	    break;
	case 0x6:
	    gen_op_eval_brgz();
	    break;
        default:
	case 0x7:
	    gen_op_eval_brgez();
	    break;
	}
}
#endif

/* XXX: potentially incorrect if dynamic npc */
static void do_branch(DisasContext * dc, int32_t offset, uint32_t insn, int cc)
{
    unsigned int cond = GET_FIELD(insn, 3, 6), a = (insn & (1 << 29));
    target_ulong target = dc->pc + offset;
	
    if (cond == 0x0) {
	/* unconditional not taken */
	if (a) {
	    dc->pc = dc->npc + 4; 
	    dc->npc = dc->pc + 4;
	} else {
	    dc->pc = dc->npc;
	    dc->npc = dc->pc + 4;
	}
    } else if (cond == 0x8) {
	/* unconditional taken */
	if (a) {
	    dc->pc = target;
	    dc->npc = dc->pc + 4;
	} else {
	    dc->pc = dc->npc;
	    dc->npc = target;
	}
    } else {
        flush_T2(dc);
        gen_cond[cc][cond]();
	if (a) {
	    gen_branch_a(dc, (long)dc->tb, target, dc->npc);
            dc->is_br = 1;
	} else {
            dc->pc = dc->npc;
            dc->jump_pc[0] = target;
            dc->jump_pc[1] = dc->npc + 4;
            dc->npc = JUMP_PC;
	}
    }
}

/* XXX: potentially incorrect if dynamic npc */
static void do_fbranch(DisasContext * dc, int32_t offset, uint32_t insn, int cc)
{
    unsigned int cond = GET_FIELD(insn, 3, 6), a = (insn & (1 << 29));
    target_ulong target = dc->pc + offset;

    if (cond == 0x0) {
	/* unconditional not taken */
	if (a) {
	    dc->pc = dc->npc + 4;
	    dc->npc = dc->pc + 4;
	} else {
	    dc->pc = dc->npc;
	    dc->npc = dc->pc + 4;
	}
    } else if (cond == 0x8) {
	/* unconditional taken */
	if (a) {
	    dc->pc = target;
	    dc->npc = dc->pc + 4;
	} else {
	    dc->pc = dc->npc;
	    dc->npc = target;
	}
    } else {
        flush_T2(dc);
        gen_fcond[cc][cond]();
	if (a) {
	    gen_branch_a(dc, (long)dc->tb, target, dc->npc);
            dc->is_br = 1;
	} else {
            dc->pc = dc->npc;
            dc->jump_pc[0] = target;
            dc->jump_pc[1] = dc->npc + 4;
            dc->npc = JUMP_PC;
	}
    }
}

#ifdef TARGET_SPARC64
/* XXX: potentially incorrect if dynamic npc */
static void do_branch_reg(DisasContext * dc, int32_t offset, uint32_t insn)
{
    unsigned int cond = GET_FIELD_SP(insn, 25, 27), a = (insn & (1 << 29));
    target_ulong target = dc->pc + offset;

    flush_T2(dc);
    gen_cond_reg(cond);
    if (a) {
	gen_branch_a(dc, (long)dc->tb, target, dc->npc);
	dc->is_br = 1;
    } else {
	dc->pc = dc->npc;
	dc->jump_pc[0] = target;
	dc->jump_pc[1] = dc->npc + 4;
	dc->npc = JUMP_PC;
    }
}

static GenOpFunc * const gen_fcmps[4] = {
    gen_op_fcmps,
    gen_op_fcmps_fcc1,
    gen_op_fcmps_fcc2,
    gen_op_fcmps_fcc3,
};

static GenOpFunc * const gen_fcmpd[4] = {
    gen_op_fcmpd,
    gen_op_fcmpd_fcc1,
    gen_op_fcmpd_fcc2,
    gen_op_fcmpd_fcc3,
};
#endif

static int gen_trap_ifnofpu(DisasContext * dc)
{
#if !defined(CONFIG_USER_ONLY)
    if (!dc->fpu_enabled) {
        save_state(dc);
        gen_op_exception(TT_NFPU_INSN);
        dc->is_br = 1;
        return 1;
    }
#endif
    return 0;
}

/* before an instruction, dc->pc must be static */
static void disas_sparc_insn(DisasContext * dc)
{
    unsigned int insn, opc, rs1, rs2, rd;

    insn = ldl_code(dc->pc);
    opc = GET_FIELD(insn, 0, 1);

    rd = GET_FIELD(insn, 2, 6);
    switch (opc) {
    case 0:			/* branches/sethi */
	{
	    unsigned int xop = GET_FIELD(insn, 7, 9);
	    int32_t target;
	    switch (xop) {
#ifdef TARGET_SPARC64
	    case 0x1:		/* V9 BPcc */
		{
		    int cc;

		    target = GET_FIELD_SP(insn, 0, 18);
		    target = sign_extend(target, 18);
		    target <<= 2;
		    cc = GET_FIELD_SP(insn, 20, 21);
		    if (cc == 0)
			do_branch(dc, target, insn, 0);
		    else if (cc == 2)
			do_branch(dc, target, insn, 1);
		    else
			goto illegal_insn;
		    goto jmp_insn;
		}
	    case 0x3:		/* V9 BPr */
		{
		    target = GET_FIELD_SP(insn, 0, 13) | 
                        (GET_FIELD_SP(insn, 20, 21) << 14);
		    target = sign_extend(target, 16);
		    target <<= 2;
		    rs1 = GET_FIELD(insn, 13, 17);
		    gen_movl_reg_T0(rs1);
		    do_branch_reg(dc, target, insn);
		    goto jmp_insn;
		}
	    case 0x5:		/* V9 FBPcc */
		{
		    int cc = GET_FIELD_SP(insn, 20, 21);
                    if (gen_trap_ifnofpu(dc))
                        goto jmp_insn;
		    target = GET_FIELD_SP(insn, 0, 18);
		    target = sign_extend(target, 19);
		    target <<= 2;
		    do_fbranch(dc, target, insn, cc);
		    goto jmp_insn;
		}
#endif
	    case 0x2:		/* BN+x */
		{
		    target = GET_FIELD(insn, 10, 31);
		    target = sign_extend(target, 22);
		    target <<= 2;
		    do_branch(dc, target, insn, 0);
		    goto jmp_insn;
		}
	    case 0x6:		/* FBN+x */
		{
                    if (gen_trap_ifnofpu(dc))
                        goto jmp_insn;
		    target = GET_FIELD(insn, 10, 31);
		    target = sign_extend(target, 22);
		    target <<= 2;
		    do_fbranch(dc, target, insn, 0);
		    goto jmp_insn;
		}
	    case 0x4:		/* SETHI */
#define OPTIM
#if defined(OPTIM)
		if (rd) { // nop
#endif
		    uint32_t value = GET_FIELD(insn, 10, 31);
		    gen_movl_imm_T0(value << 10);
		    gen_movl_T0_reg(rd);
#if defined(OPTIM)
		}
#endif
		break;
	    case 0x0:		/* UNIMPL */
	    default:
                goto illegal_insn;
	    }
	    break;
	}
	break;
    case 1:
	/*CALL*/ {
	    target_long target = GET_FIELDs(insn, 2, 31) << 2;

#ifdef TARGET_SPARC64
	    if (dc->pc == (uint32_t)dc->pc) {
		gen_op_movl_T0_im(dc->pc);
	    } else {
		gen_op_movq_T0_im64(dc->pc >> 32, dc->pc);
	    }
#else
	    gen_op_movl_T0_im(dc->pc);
#endif
	    gen_movl_T0_reg(15);
	    target += dc->pc;
            gen_mov_pc_npc(dc);
	    dc->npc = target;
	}
	goto jmp_insn;
    case 2:			/* FPU & Logical Operations */
	{
	    unsigned int xop = GET_FIELD(insn, 7, 12);
	    if (xop == 0x3a) {	/* generate trap */
                int cond;

                rs1 = GET_FIELD(insn, 13, 17);
                gen_movl_reg_T0(rs1);
		if (IS_IMM) {
		    rs2 = GET_FIELD(insn, 25, 31);
#if defined(OPTIM)
		    if (rs2 != 0) {
#endif
			gen_movl_simm_T1(rs2);
			gen_op_add_T1_T0();
#if defined(OPTIM)
		    }
#endif
                } else {
                    rs2 = GET_FIELD(insn, 27, 31);
#if defined(OPTIM)
		    if (rs2 != 0) {
#endif
			gen_movl_reg_T1(rs2);
			gen_op_add_T1_T0();
#if defined(OPTIM)
		    }
#endif
                }
                cond = GET_FIELD(insn, 3, 6);
                if (cond == 0x8) {
                    save_state(dc);
                    gen_op_trap_T0();
                } else if (cond != 0) {
#ifdef TARGET_SPARC64
		    /* V9 icc/xcc */
		    int cc = GET_FIELD_SP(insn, 11, 12);
		    flush_T2(dc);
                    save_state(dc);
		    if (cc == 0)
			gen_cond[0][cond]();
		    else if (cc == 2)
			gen_cond[1][cond]();
		    else
			goto illegal_insn;
#else
		    flush_T2(dc);
                    save_state(dc);
		    gen_cond[0][cond]();
#endif
                    gen_op_trapcc_T0();
                }
                gen_op_next_insn();
                gen_op_movl_T0_0();
                gen_op_exit_tb();
                dc->is_br = 1;
                goto jmp_insn;
            } else if (xop == 0x28) {
                rs1 = GET_FIELD(insn, 13, 17);
                switch(rs1) {
                case 0: /* rdy */
		    gen_op_movtl_T0_env(offsetof(CPUSPARCState, y));
                    gen_movl_T0_reg(rd);
                    break;
                case 15: /* stbar / V9 membar */
		    break; /* no effect? */
#ifdef TARGET_SPARC64
		case 0x2: /* V9 rdccr */
                    gen_op_rdccr();
                    gen_movl_T0_reg(rd);
                    break;
		case 0x3: /* V9 rdasi */
		    gen_op_movl_T0_env(offsetof(CPUSPARCState, asi));
                    gen_movl_T0_reg(rd);
                    break;
		case 0x4: /* V9 rdtick */
                    gen_op_rdtick();
                    gen_movl_T0_reg(rd);
                    break;
		case 0x5: /* V9 rdpc */
		    if (dc->pc == (uint32_t)dc->pc) {
			gen_op_movl_T0_im(dc->pc);
		    } else {
			gen_op_movq_T0_im64(dc->pc >> 32, dc->pc);
		    }
		    gen_movl_T0_reg(rd);
		    break;
		case 0x6: /* V9 rdfprs */
		    gen_op_movl_T0_env(offsetof(CPUSPARCState, fprs));
                    gen_movl_T0_reg(rd);
                    break;
		case 0x13: /* Graphics Status */
                    if (gen_trap_ifnofpu(dc))
                        goto jmp_insn;
		    gen_op_movtl_T0_env(offsetof(CPUSPARCState, gsr));
                    gen_movl_T0_reg(rd);
                    break;
		case 0x17: /* Tick compare */
		    gen_op_movtl_T0_env(offsetof(CPUSPARCState, tick_cmpr));
                    gen_movl_T0_reg(rd);
                    break;
		case 0x18: /* System tick */
                    gen_op_rdtick(); // XXX
                    gen_movl_T0_reg(rd);
                    break;
		case 0x19: /* System tick compare */
		    gen_op_movtl_T0_env(offsetof(CPUSPARCState, stick_cmpr));
                    gen_movl_T0_reg(rd);
                    break;
		case 0x10: /* Performance Control */
		case 0x11: /* Performance Instrumentation Counter */
		case 0x12: /* Dispatch Control */
		case 0x14: /* Softint set, WO */
		case 0x15: /* Softint clear, WO */
		case 0x16: /* Softint write */
#endif
                default:
                    goto illegal_insn;
                }
#if !defined(CONFIG_USER_ONLY)
#ifndef TARGET_SPARC64
            } else if (xop == 0x29) { /* rdpsr / V9 unimp */
		if (!supervisor(dc))
		    goto priv_insn;
                gen_op_rdpsr();
                gen_movl_T0_reg(rd);
                break;
#endif
            } else if (xop == 0x2a) { /* rdwim / V9 rdpr */
		if (!supervisor(dc))
		    goto priv_insn;
#ifdef TARGET_SPARC64
                rs1 = GET_FIELD(insn, 13, 17);
		switch (rs1) {
		case 0: // tpc
		    gen_op_rdtpc();
		    break;
		case 1: // tnpc
		    gen_op_rdtnpc();
		    break;
		case 2: // tstate
		    gen_op_rdtstate();
		    break;
		case 3: // tt
		    gen_op_rdtt();
		    break;
		case 4: // tick
		    gen_op_rdtick();
		    break;
		case 5: // tba
		    gen_op_movtl_T0_env(offsetof(CPUSPARCState, tbr));
		    break;
		case 6: // pstate
		    gen_op_rdpstate();
		    break;
		case 7: // tl
		    gen_op_movl_T0_env(offsetof(CPUSPARCState, tl));
		    break;
		case 8: // pil
		    gen_op_movl_T0_env(offsetof(CPUSPARCState, psrpil));
		    break;
		case 9: // cwp
		    gen_op_rdcwp();
		    break;
		case 10: // cansave
		    gen_op_movl_T0_env(offsetof(CPUSPARCState, cansave));
		    break;
		case 11: // canrestore
		    gen_op_movl_T0_env(offsetof(CPUSPARCState, canrestore));
		    break;
		case 12: // cleanwin
		    gen_op_movl_T0_env(offsetof(CPUSPARCState, cleanwin));
		    break;
		case 13: // otherwin
		    gen_op_movl_T0_env(offsetof(CPUSPARCState, otherwin));
		    break;
		case 14: // wstate
		    gen_op_movl_T0_env(offsetof(CPUSPARCState, wstate));
		    break;
		case 31: // ver
		    gen_op_movtl_T0_env(offsetof(CPUSPARCState, version));
		    break;
		case 15: // fq
		default:
		    goto illegal_insn;
		}
#else
		gen_op_movl_T0_env(offsetof(CPUSPARCState, wim));
#endif
                gen_movl_T0_reg(rd);
                break;
            } else if (xop == 0x2b) { /* rdtbr / V9 flushw */
#ifdef TARGET_SPARC64
		gen_op_flushw();
#else
		if (!supervisor(dc))
		    goto priv_insn;
		gen_op_movtl_T0_env(offsetof(CPUSPARCState, tbr));
                gen_movl_T0_reg(rd);
#endif
                break;
#endif
	    } else if (xop == 0x34) {	/* FPU Operations */
                if (gen_trap_ifnofpu(dc))
                    goto jmp_insn;
                rs1 = GET_FIELD(insn, 13, 17);
	        rs2 = GET_FIELD(insn, 27, 31);
	        xop = GET_FIELD(insn, 18, 26);
		switch (xop) {
		    case 0x1: /* fmovs */
                	gen_op_load_fpr_FT0(rs2);
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0x5: /* fnegs */
                	gen_op_load_fpr_FT1(rs2);
			gen_op_fnegs();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0x9: /* fabss */
                	gen_op_load_fpr_FT1(rs2);
			gen_op_fabss();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0x29: /* fsqrts */
                	gen_op_load_fpr_FT1(rs2);
			gen_op_fsqrts();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0x2a: /* fsqrtd */
                	gen_op_load_fpr_DT1(DFPREG(rs2));
			gen_op_fsqrtd();
			gen_op_store_DT0_fpr(DFPREG(rd));
			break;
		    case 0x2b: /* fsqrtq */
		        goto nfpu_insn;
		    case 0x41:
                	gen_op_load_fpr_FT0(rs1);
                	gen_op_load_fpr_FT1(rs2);
			gen_op_fadds();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0x42:
                	gen_op_load_fpr_DT0(DFPREG(rs1));
                	gen_op_load_fpr_DT1(DFPREG(rs2));
			gen_op_faddd();
			gen_op_store_DT0_fpr(DFPREG(rd));
			break;
		    case 0x43: /* faddq */
		        goto nfpu_insn;
		    case 0x45:
                	gen_op_load_fpr_FT0(rs1);
                	gen_op_load_fpr_FT1(rs2);
			gen_op_fsubs();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0x46:
                	gen_op_load_fpr_DT0(DFPREG(rs1));
                	gen_op_load_fpr_DT1(DFPREG(rs2));
			gen_op_fsubd();
			gen_op_store_DT0_fpr(DFPREG(rd));
			break;
		    case 0x47: /* fsubq */
		        goto nfpu_insn;
		    case 0x49:
                	gen_op_load_fpr_FT0(rs1);
                	gen_op_load_fpr_FT1(rs2);
			gen_op_fmuls();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0x4a:
                	gen_op_load_fpr_DT0(DFPREG(rs1));
                	gen_op_load_fpr_DT1(DFPREG(rs2));
			gen_op_fmuld();
			gen_op_store_DT0_fpr(rd);
			break;
		    case 0x4b: /* fmulq */
		        goto nfpu_insn;
		    case 0x4d:
                	gen_op_load_fpr_FT0(rs1);
                	gen_op_load_fpr_FT1(rs2);
			gen_op_fdivs();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0x4e:
                	gen_op_load_fpr_DT0(DFPREG(rs1));
			gen_op_load_fpr_DT1(DFPREG(rs2));
			gen_op_fdivd();
			gen_op_store_DT0_fpr(DFPREG(rd));
			break;
		    case 0x4f: /* fdivq */
		        goto nfpu_insn;
		    case 0x69:
                	gen_op_load_fpr_FT0(rs1);
                	gen_op_load_fpr_FT1(rs2);
			gen_op_fsmuld();
			gen_op_store_DT0_fpr(DFPREG(rd));
			break;
		    case 0x6e: /* fdmulq */
		        goto nfpu_insn;
		    case 0xc4:
                	gen_op_load_fpr_FT1(rs2);
			gen_op_fitos();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0xc6:
                	gen_op_load_fpr_DT1(DFPREG(rs2));
			gen_op_fdtos();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0xc7: /* fqtos */
		        goto nfpu_insn;
		    case 0xc8:
                	gen_op_load_fpr_FT1(rs2);
			gen_op_fitod();
			gen_op_store_DT0_fpr(DFPREG(rd));
			break;
		    case 0xc9:
                	gen_op_load_fpr_FT1(rs2);
			gen_op_fstod();
			gen_op_store_DT0_fpr(DFPREG(rd));
			break;
		    case 0xcb: /* fqtod */
		        goto nfpu_insn;
		    case 0xcc: /* fitoq */
		        goto nfpu_insn;
		    case 0xcd: /* fstoq */
		        goto nfpu_insn;
		    case 0xce: /* fdtoq */
		        goto nfpu_insn;
		    case 0xd1:
                	gen_op_load_fpr_FT1(rs2);
			gen_op_fstoi();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0xd2:
                	gen_op_load_fpr_DT1(rs2);
			gen_op_fdtoi();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0xd3: /* fqtoi */
		        goto nfpu_insn;
#ifdef TARGET_SPARC64
		    case 0x2: /* V9 fmovd */
                	gen_op_load_fpr_DT0(DFPREG(rs2));
			gen_op_store_DT0_fpr(DFPREG(rd));
			break;
		    case 0x6: /* V9 fnegd */
                	gen_op_load_fpr_DT1(DFPREG(rs2));
			gen_op_fnegd();
			gen_op_store_DT0_fpr(DFPREG(rd));
			break;
		    case 0xa: /* V9 fabsd */
                	gen_op_load_fpr_DT1(DFPREG(rs2));
			gen_op_fabsd();
			gen_op_store_DT0_fpr(DFPREG(rd));
			break;
		    case 0x81: /* V9 fstox */
                	gen_op_load_fpr_FT1(rs2);
			gen_op_fstox();
			gen_op_store_DT0_fpr(DFPREG(rd));
			break;
		    case 0x82: /* V9 fdtox */
                	gen_op_load_fpr_DT1(DFPREG(rs2));
			gen_op_fdtox();
			gen_op_store_DT0_fpr(DFPREG(rd));
			break;
		    case 0x84: /* V9 fxtos */
                	gen_op_load_fpr_DT1(DFPREG(rs2));
			gen_op_fxtos();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0x88: /* V9 fxtod */
                	gen_op_load_fpr_DT1(DFPREG(rs2));
			gen_op_fxtod();
			gen_op_store_DT0_fpr(DFPREG(rd));
			break;
		    case 0x3: /* V9 fmovq */
		    case 0x7: /* V9 fnegq */
		    case 0xb: /* V9 fabsq */
		    case 0x83: /* V9 fqtox */
		    case 0x8c: /* V9 fxtoq */
		        goto nfpu_insn;
#endif
		    default:
                	goto illegal_insn;
		}
	    } else if (xop == 0x35) {	/* FPU Operations */
#ifdef TARGET_SPARC64
		int cond;
#endif
                if (gen_trap_ifnofpu(dc))
                    goto jmp_insn;
                rs1 = GET_FIELD(insn, 13, 17);
	        rs2 = GET_FIELD(insn, 27, 31);
	        xop = GET_FIELD(insn, 18, 26);
#ifdef TARGET_SPARC64
		if ((xop & 0x11f) == 0x005) { // V9 fmovsr
		    cond = GET_FIELD_SP(insn, 14, 17);
		    gen_op_load_fpr_FT0(rd);
		    gen_op_load_fpr_FT1(rs2);
		    rs1 = GET_FIELD(insn, 13, 17);
		    gen_movl_reg_T0(rs1);
		    flush_T2(dc);
		    gen_cond_reg(cond);
		    gen_op_fmovs_cc();
		    gen_op_store_FT0_fpr(rd);
		    break;
		} else if ((xop & 0x11f) == 0x006) { // V9 fmovdr
		    cond = GET_FIELD_SP(insn, 14, 17);
		    gen_op_load_fpr_DT0(rd);
		    gen_op_load_fpr_DT1(rs2);
		    flush_T2(dc);
		    rs1 = GET_FIELD(insn, 13, 17);
		    gen_movl_reg_T0(rs1);
		    gen_cond_reg(cond);
		    gen_op_fmovs_cc();
		    gen_op_store_DT0_fpr(rd);
		    break;
		} else if ((xop & 0x11f) == 0x007) { // V9 fmovqr
		    goto nfpu_insn;
		}
#endif
		switch (xop) {
#ifdef TARGET_SPARC64
		    case 0x001: /* V9 fmovscc %fcc0 */
			cond = GET_FIELD_SP(insn, 14, 17);
                	gen_op_load_fpr_FT0(rd);
                	gen_op_load_fpr_FT1(rs2);
			flush_T2(dc);
			gen_fcond[0][cond]();
			gen_op_fmovs_cc();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0x002: /* V9 fmovdcc %fcc0 */
			cond = GET_FIELD_SP(insn, 14, 17);
                	gen_op_load_fpr_DT0(rd);
                	gen_op_load_fpr_DT1(rs2);
			flush_T2(dc);
			gen_fcond[0][cond]();
			gen_op_fmovd_cc();
			gen_op_store_DT0_fpr(rd);
			break;
		    case 0x003: /* V9 fmovqcc %fcc0 */
		        goto nfpu_insn;
		    case 0x041: /* V9 fmovscc %fcc1 */
			cond = GET_FIELD_SP(insn, 14, 17);
                	gen_op_load_fpr_FT0(rd);
                	gen_op_load_fpr_FT1(rs2);
			flush_T2(dc);
			gen_fcond[1][cond]();
			gen_op_fmovs_cc();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0x042: /* V9 fmovdcc %fcc1 */
			cond = GET_FIELD_SP(insn, 14, 17);
                	gen_op_load_fpr_DT0(rd);
                	gen_op_load_fpr_DT1(rs2);
			flush_T2(dc);
			gen_fcond[1][cond]();
			gen_op_fmovd_cc();
			gen_op_store_DT0_fpr(rd);
			break;
		    case 0x043: /* V9 fmovqcc %fcc1 */
		        goto nfpu_insn;
		    case 0x081: /* V9 fmovscc %fcc2 */
			cond = GET_FIELD_SP(insn, 14, 17);
                	gen_op_load_fpr_FT0(rd);
                	gen_op_load_fpr_FT1(rs2);
			flush_T2(dc);
			gen_fcond[2][cond]();
			gen_op_fmovs_cc();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0x082: /* V9 fmovdcc %fcc2 */
			cond = GET_FIELD_SP(insn, 14, 17);
                	gen_op_load_fpr_DT0(rd);
                	gen_op_load_fpr_DT1(rs2);
			flush_T2(dc);
			gen_fcond[2][cond]();
			gen_op_fmovd_cc();
			gen_op_store_DT0_fpr(rd);
			break;
		    case 0x083: /* V9 fmovqcc %fcc2 */
		        goto nfpu_insn;
		    case 0x0c1: /* V9 fmovscc %fcc3 */
			cond = GET_FIELD_SP(insn, 14, 17);
                	gen_op_load_fpr_FT0(rd);
                	gen_op_load_fpr_FT1(rs2);
			flush_T2(dc);
			gen_fcond[3][cond]();
			gen_op_fmovs_cc();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0x0c2: /* V9 fmovdcc %fcc3 */
			cond = GET_FIELD_SP(insn, 14, 17);
                	gen_op_load_fpr_DT0(rd);
                	gen_op_load_fpr_DT1(rs2);
			flush_T2(dc);
			gen_fcond[3][cond]();
			gen_op_fmovd_cc();
			gen_op_store_DT0_fpr(rd);
			break;
		    case 0x0c3: /* V9 fmovqcc %fcc3 */
		        goto nfpu_insn;
		    case 0x101: /* V9 fmovscc %icc */
			cond = GET_FIELD_SP(insn, 14, 17);
                	gen_op_load_fpr_FT0(rd);
                	gen_op_load_fpr_FT1(rs2);
			flush_T2(dc);
			gen_cond[0][cond]();
			gen_op_fmovs_cc();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0x102: /* V9 fmovdcc %icc */
			cond = GET_FIELD_SP(insn, 14, 17);
                	gen_op_load_fpr_DT0(rd);
                	gen_op_load_fpr_DT1(rs2);
			flush_T2(dc);
			gen_cond[0][cond]();
			gen_op_fmovd_cc();
			gen_op_store_DT0_fpr(rd);
			break;
		    case 0x103: /* V9 fmovqcc %icc */
		        goto nfpu_insn;
		    case 0x181: /* V9 fmovscc %xcc */
			cond = GET_FIELD_SP(insn, 14, 17);
                	gen_op_load_fpr_FT0(rd);
                	gen_op_load_fpr_FT1(rs2);
			flush_T2(dc);
			gen_cond[1][cond]();
			gen_op_fmovs_cc();
			gen_op_store_FT0_fpr(rd);
			break;
		    case 0x182: /* V9 fmovdcc %xcc */
			cond = GET_FIELD_SP(insn, 14, 17);
                	gen_op_load_fpr_DT0(rd);
                	gen_op_load_fpr_DT1(rs2);
			flush_T2(dc);
			gen_cond[1][cond]();
			gen_op_fmovd_cc();
			gen_op_store_DT0_fpr(rd);
			break;
		    case 0x183: /* V9 fmovqcc %xcc */
		        goto nfpu_insn;
#endif
		    case 0x51: /* V9 %fcc */
                	gen_op_load_fpr_FT0(rs1);
                	gen_op_load_fpr_FT1(rs2);
#ifdef TARGET_SPARC64
			gen_fcmps[rd & 3]();
#else
			gen_op_fcmps();
#endif
			break;
		    case 0x52: /* V9 %fcc */
                	gen_op_load_fpr_DT0(DFPREG(rs1));
                	gen_op_load_fpr_DT1(DFPREG(rs2));
#ifdef TARGET_SPARC64
			gen_fcmpd[rd & 3]();
#else
			gen_op_fcmpd();
#endif
			break;
		    case 0x53: /* fcmpq */
		        goto nfpu_insn;
		    case 0x55: /* fcmpes, V9 %fcc */
                	gen_op_load_fpr_FT0(rs1);
                	gen_op_load_fpr_FT1(rs2);
#ifdef TARGET_SPARC64
			gen_fcmps[rd & 3]();
#else
			gen_op_fcmps(); /* XXX should trap if qNaN or sNaN  */
#endif
			break;
		    case 0x56: /* fcmped, V9 %fcc */
                	gen_op_load_fpr_DT0(DFPREG(rs1));
                	gen_op_load_fpr_DT1(DFPREG(rs2));
#ifdef TARGET_SPARC64
			gen_fcmpd[rd & 3]();
#else
			gen_op_fcmpd(); /* XXX should trap if qNaN or sNaN  */
#endif
			break;
		    case 0x57: /* fcmpeq */
		        goto nfpu_insn;
		    default:
                	goto illegal_insn;
		}
#if defined(OPTIM)
	    } else if (xop == 0x2) {
		// clr/mov shortcut

                rs1 = GET_FIELD(insn, 13, 17);
		if (rs1 == 0) {
		    // or %g0, x, y -> mov T1, x; mov y, T1
		    if (IS_IMM) {	/* immediate */
			rs2 = GET_FIELDs(insn, 19, 31);
			gen_movl_simm_T1(rs2);
		    } else {		/* register */
			rs2 = GET_FIELD(insn, 27, 31);
			gen_movl_reg_T1(rs2);
		    }
		    gen_movl_T1_reg(rd);
		} else {
		    gen_movl_reg_T0(rs1);
		    if (IS_IMM) {	/* immediate */
			// or x, #0, y -> mov T1, x; mov y, T1
			rs2 = GET_FIELDs(insn, 19, 31);
			if (rs2 != 0) {
			    gen_movl_simm_T1(rs2);
			    gen_op_or_T1_T0();
			}
		    } else {		/* register */
			// or x, %g0, y -> mov T1, x; mov y, T1
			rs2 = GET_FIELD(insn, 27, 31);
			if (rs2 != 0) {
			    gen_movl_reg_T1(rs2);
			    gen_op_or_T1_T0();
			}
		    }
		    gen_movl_T0_reg(rd);
		}
#endif
#ifdef TARGET_SPARC64
	    } else if (xop == 0x25) { /* sll, V9 sllx ( == sll) */
                rs1 = GET_FIELD(insn, 13, 17);
		gen_movl_reg_T0(rs1);
		if (IS_IMM) {	/* immediate */
                    rs2 = GET_FIELDs(insn, 20, 31);
                    gen_movl_simm_T1(rs2);
                } else {		/* register */
                    rs2 = GET_FIELD(insn, 27, 31);
                    gen_movl_reg_T1(rs2);
                }
		gen_op_sll();
		gen_movl_T0_reg(rd);
	    } else if (xop == 0x26) { /* srl, V9 srlx */
                rs1 = GET_FIELD(insn, 13, 17);
		gen_movl_reg_T0(rs1);
		if (IS_IMM) {	/* immediate */
                    rs2 = GET_FIELDs(insn, 20, 31);
                    gen_movl_simm_T1(rs2);
                } else {		/* register */
                    rs2 = GET_FIELD(insn, 27, 31);
                    gen_movl_reg_T1(rs2);
                }
		if (insn & (1 << 12))
		    gen_op_srlx();
		else
		    gen_op_srl();
		gen_movl_T0_reg(rd);
	    } else if (xop == 0x27) { /* sra, V9 srax */
                rs1 = GET_FIELD(insn, 13, 17);
		gen_movl_reg_T0(rs1);
		if (IS_IMM) {	/* immediate */
                    rs2 = GET_FIELDs(insn, 20, 31);
                    gen_movl_simm_T1(rs2);
                } else {		/* register */
                    rs2 = GET_FIELD(insn, 27, 31);
                    gen_movl_reg_T1(rs2);
                }
		if (insn & (1 << 12))
		    gen_op_srax();
		else
		    gen_op_sra();
		gen_movl_T0_reg(rd);
#endif
	    } else if (xop < 0x38) {
                rs1 = GET_FIELD(insn, 13, 17);
		gen_movl_reg_T0(rs1);
		if (IS_IMM) {	/* immediate */
                    rs2 = GET_FIELDs(insn, 19, 31);
                    gen_movl_simm_T1(rs2);
                } else {		/* register */
                    rs2 = GET_FIELD(insn, 27, 31);
                    gen_movl_reg_T1(rs2);
                }
                if (xop < 0x20) {
                    switch (xop & ~0x10) {
                    case 0x0:
                        if (xop & 0x10)
                            gen_op_add_T1_T0_cc();
                        else
                            gen_op_add_T1_T0();
                        break;
                    case 0x1:
                        gen_op_and_T1_T0();
                        if (xop & 0x10)
                            gen_op_logic_T0_cc();
                        break;
                    case 0x2:
			gen_op_or_T1_T0();
			if (xop & 0x10)
			    gen_op_logic_T0_cc();
			break;
                    case 0x3:
                        gen_op_xor_T1_T0();
                        if (xop & 0x10)
                            gen_op_logic_T0_cc();
                        break;
                    case 0x4:
                        if (xop & 0x10)
                            gen_op_sub_T1_T0_cc();
                        else
                            gen_op_sub_T1_T0();
                        break;
                    case 0x5:
                        gen_op_andn_T1_T0();
                        if (xop & 0x10)
                            gen_op_logic_T0_cc();
                        break;
                    case 0x6:
                        gen_op_orn_T1_T0();
                        if (xop & 0x10)
                            gen_op_logic_T0_cc();
                        break;
                    case 0x7:
                        gen_op_xnor_T1_T0();
                        if (xop & 0x10)
                            gen_op_logic_T0_cc();
                        break;
                    case 0x8:
                        if (xop & 0x10)
                            gen_op_addx_T1_T0_cc();
                        else
                            gen_op_addx_T1_T0();
                        break;
#ifdef TARGET_SPARC64
		    case 0x9: /* V9 mulx */
                        gen_op_mulx_T1_T0();
                        break;
#endif
                    case 0xa:
                        gen_op_umul_T1_T0();
                        if (xop & 0x10)
                            gen_op_logic_T0_cc();
                        break;
                    case 0xb:
                        gen_op_smul_T1_T0();
                        if (xop & 0x10)
                            gen_op_logic_T0_cc();
                        break;
                    case 0xc:
                        if (xop & 0x10)
                            gen_op_subx_T1_T0_cc();
                        else
                            gen_op_subx_T1_T0();
                        break;
#ifdef TARGET_SPARC64
		    case 0xd: /* V9 udivx */
                        gen_op_udivx_T1_T0();
                        break;
#endif
                    case 0xe:
                        gen_op_udiv_T1_T0();
                        if (xop & 0x10)
                            gen_op_div_cc();
                        break;
                    case 0xf:
                        gen_op_sdiv_T1_T0();
                        if (xop & 0x10)
                            gen_op_div_cc();
                        break;
                    default:
                        goto illegal_insn;
                    }
		    gen_movl_T0_reg(rd);
                } else {
                    switch (xop) {
		    case 0x20: /* taddcc */
		    case 0x21: /* tsubcc */
		    case 0x22: /* taddcctv */
		    case 0x23: /* tsubcctv */
			goto illegal_insn;
                    case 0x24: /* mulscc */
                        gen_op_mulscc_T1_T0();
                        gen_movl_T0_reg(rd);
                        break;
#ifndef TARGET_SPARC64
                    case 0x25:	/* sll */
			gen_op_sll();
                        gen_movl_T0_reg(rd);
                        break;
                    case 0x26:  /* srl */
			gen_op_srl();
                        gen_movl_T0_reg(rd);
                        break;
                    case 0x27:  /* sra */
			gen_op_sra();
                        gen_movl_T0_reg(rd);
                        break;
#endif
                    case 0x30:
                        {
                            switch(rd) {
                            case 0: /* wry */
				gen_op_xor_T1_T0();
				gen_op_movtl_env_T0(offsetof(CPUSPARCState, y));
                                break;
#ifdef TARGET_SPARC64
			    case 0x2: /* V9 wrccr */
                                gen_op_wrccr();
				break;
			    case 0x3: /* V9 wrasi */
				gen_op_movl_env_T0(offsetof(CPUSPARCState, asi));
				break;
			    case 0x6: /* V9 wrfprs */
				gen_op_movl_env_T0(offsetof(CPUSPARCState, fprs));
				break;
			    case 0xf: /* V9 sir, nop if user */
#if !defined(CONFIG_USER_ONLY)
				if (supervisor(dc))
				    gen_op_sir();
#endif
				break;
			    case 0x13: /* Graphics Status */
                                if (gen_trap_ifnofpu(dc))
                                    goto jmp_insn;
				gen_op_movtl_env_T0(offsetof(CPUSPARCState, gsr));
				break;
			    case 0x17: /* Tick compare */
#if !defined(CONFIG_USER_ONLY)
				if (!supervisor(dc))
				    goto illegal_insn;
#endif
				gen_op_movtl_env_T0(offsetof(CPUSPARCState, tick_cmpr));
				break;
			    case 0x18: /* System tick */
#if !defined(CONFIG_USER_ONLY)
				if (!supervisor(dc))
				    goto illegal_insn;
#endif
				gen_op_movtl_env_T0(offsetof(CPUSPARCState, stick_cmpr));
				break;
			    case 0x19: /* System tick compare */
#if !defined(CONFIG_USER_ONLY)
				if (!supervisor(dc))
				    goto illegal_insn;
#endif
				gen_op_movtl_env_T0(offsetof(CPUSPARCState, stick_cmpr));
				break;

			    case 0x10: /* Performance Control */
			    case 0x11: /* Performance Instrumentation Counter */
			    case 0x12: /* Dispatch Control */
			    case 0x14: /* Softint set */
			    case 0x15: /* Softint clear */
			    case 0x16: /* Softint write */
#endif
                            default:
                                goto illegal_insn;
                            }
                        }
                        break;
#if !defined(CONFIG_USER_ONLY)
                    case 0x31: /* wrpsr, V9 saved, restored */
                        {
			    if (!supervisor(dc))
				goto priv_insn;
#ifdef TARGET_SPARC64
			    switch (rd) {
			    case 0:
				gen_op_saved();
				break;
			    case 1:
				gen_op_restored();
				break;
			    default:
                                goto illegal_insn;
                            }
#else
                            gen_op_xor_T1_T0();
                            gen_op_wrpsr();
                            save_state(dc);
                            gen_op_next_insn();
			    gen_op_movl_T0_0();
			    gen_op_exit_tb();
			    dc->is_br = 1;
#endif
                        }
                        break;
                    case 0x32: /* wrwim, V9 wrpr */
                        {
			    if (!supervisor(dc))
				goto priv_insn;
                            gen_op_xor_T1_T0();
#ifdef TARGET_SPARC64
			    switch (rd) {
			    case 0: // tpc
				gen_op_wrtpc();
				break;
			    case 1: // tnpc
				gen_op_wrtnpc();
				break;
			    case 2: // tstate
				gen_op_wrtstate();
				break;
			    case 3: // tt
				gen_op_wrtt();
				break;
			    case 4: // tick
				gen_op_wrtick();
				break;
			    case 5: // tba
				gen_op_movtl_env_T0(offsetof(CPUSPARCState, tbr));
				break;
			    case 6: // pstate
				gen_op_wrpstate();
                                save_state(dc);
                                gen_op_next_insn();
                                gen_op_movl_T0_0();
                                gen_op_exit_tb();
                                dc->is_br = 1;
				break;
			    case 7: // tl
				gen_op_movl_env_T0(offsetof(CPUSPARCState, tl));
				break;
			    case 8: // pil
				gen_op_movl_env_T0(offsetof(CPUSPARCState, psrpil));
				break;
			    case 9: // cwp
				gen_op_wrcwp();
				break;
			    case 10: // cansave
				gen_op_movl_env_T0(offsetof(CPUSPARCState, cansave));
				break;
			    case 11: // canrestore
				gen_op_movl_env_T0(offsetof(CPUSPARCState, canrestore));
				break;
			    case 12: // cleanwin
				gen_op_movl_env_T0(offsetof(CPUSPARCState, cleanwin));
				break;
			    case 13: // otherwin
				gen_op_movl_env_T0(offsetof(CPUSPARCState, otherwin));
				break;
			    case 14: // wstate
				gen_op_movl_env_T0(offsetof(CPUSPARCState, wstate));
				break;
			    default:
				goto illegal_insn;
			    }
#else
			    gen_op_movl_env_T0(offsetof(CPUSPARCState, wim));
#endif
                        }
                        break;
#ifndef TARGET_SPARC64
                    case 0x33: /* wrtbr, V9 unimp */
                        {
			    if (!supervisor(dc))
				goto priv_insn;
                            gen_op_xor_T1_T0();
			    gen_op_movtl_env_T0(offsetof(CPUSPARCState, tbr));
                        }
                        break;
#endif
#endif
#ifdef TARGET_SPARC64
		    case 0x2c: /* V9 movcc */
			{
			    int cc = GET_FIELD_SP(insn, 11, 12);
			    int cond = GET_FIELD_SP(insn, 14, 17);
			    if (IS_IMM) {	/* immediate */
				rs2 = GET_FIELD_SPs(insn, 0, 10);
				gen_movl_simm_T1(rs2);
			    }
			    else {
				rs2 = GET_FIELD_SP(insn, 0, 4);
				gen_movl_reg_T1(rs2);
			    }
			    gen_movl_reg_T0(rd);
			    flush_T2(dc);
			    if (insn & (1 << 18)) {
				if (cc == 0)
				    gen_cond[0][cond]();
				else if (cc == 2)
				    gen_cond[1][cond]();
				else
				    goto illegal_insn;
			    } else {
				gen_fcond[cc][cond]();
			    }
			    gen_op_mov_cc();
			    gen_movl_T0_reg(rd);
			    break;
			}
		    case 0x2d: /* V9 sdivx */
                        gen_op_sdivx_T1_T0();
			gen_movl_T0_reg(rd);
                        break;
		    case 0x2e: /* V9 popc */
			{
			    if (IS_IMM) {	/* immediate */
				rs2 = GET_FIELD_SPs(insn, 0, 12);
				gen_movl_simm_T1(rs2);
				// XXX optimize: popc(constant)
			    }
			    else {
				rs2 = GET_FIELD_SP(insn, 0, 4);
				gen_movl_reg_T1(rs2);
			    }
			    gen_op_popc();
			    gen_movl_T0_reg(rd);
			}
		    case 0x2f: /* V9 movr */
			{
			    int cond = GET_FIELD_SP(insn, 10, 12);
			    rs1 = GET_FIELD(insn, 13, 17);
			    flush_T2(dc);
			    gen_movl_reg_T0(rs1);
			    gen_cond_reg(cond);
			    if (IS_IMM) {	/* immediate */
				rs2 = GET_FIELD_SPs(insn, 0, 10);
				gen_movl_simm_T1(rs2);
			    }
			    else {
				rs2 = GET_FIELD_SP(insn, 0, 4);
				gen_movl_reg_T1(rs2);
			    }
			    gen_movl_reg_T0(rd);
			    gen_op_mov_cc();
			    gen_movl_T0_reg(rd);
			    break;
			}
		    case 0x36: /* UltraSparc shutdown, VIS */
			{
			    int opf = GET_FIELD_SP(insn, 5, 13);
                            rs1 = GET_FIELD(insn, 13, 17);
                            rs2 = GET_FIELD(insn, 27, 31);

                            switch (opf) {
                            case 0x018: /* VIS I alignaddr */
                                if (gen_trap_ifnofpu(dc))
                                    goto jmp_insn;
                                gen_movl_reg_T0(rs1);
                                gen_movl_reg_T1(rs2);
                                gen_op_alignaddr();
                                gen_movl_T0_reg(rd);
                                break;
                            case 0x01a: /* VIS I alignaddrl */
                                if (gen_trap_ifnofpu(dc))
                                    goto jmp_insn;
                                // XXX
                                break;
                            case 0x048: /* VIS I faligndata */
                                if (gen_trap_ifnofpu(dc))
                                    goto jmp_insn;
                                gen_op_load_fpr_DT0(rs1);
                                gen_op_load_fpr_DT1(rs2);
                                gen_op_faligndata();
                                gen_op_store_DT0_fpr(rd);
                                break;
                            default:
                                goto illegal_insn;
                            }
                            break;
			}
#endif
		    default:
			goto illegal_insn;
		    }
		}
#ifdef TARGET_SPARC64
	    } else if (xop == 0x39) { /* V9 return */
                rs1 = GET_FIELD(insn, 13, 17);
		gen_movl_reg_T0(rs1);
                if (IS_IMM) {	/* immediate */
		    rs2 = GET_FIELDs(insn, 19, 31);
#if defined(OPTIM)
		    if (rs2) {
#endif
			gen_movl_simm_T1(rs2);
			gen_op_add_T1_T0();
#if defined(OPTIM)
		    }
#endif
                } else {		/* register */
                    rs2 = GET_FIELD(insn, 27, 31);
#if defined(OPTIM)
		    if (rs2) {
#endif
			gen_movl_reg_T1(rs2);
			gen_op_add_T1_T0();
#if defined(OPTIM)
		    }
#endif
                }
		gen_op_restore();
		gen_mov_pc_npc(dc);
		gen_op_movl_npc_T0();
		dc->npc = DYNAMIC_PC;
		goto jmp_insn;
#endif
	    } else {
                rs1 = GET_FIELD(insn, 13, 17);
		gen_movl_reg_T0(rs1);
                if (IS_IMM) {	/* immediate */
		    rs2 = GET_FIELDs(insn, 19, 31);
#if defined(OPTIM)
		    if (rs2) {
#endif
			gen_movl_simm_T1(rs2);
			gen_op_add_T1_T0();
#if defined(OPTIM)
		    }
#endif
                } else {		/* register */
                    rs2 = GET_FIELD(insn, 27, 31);
#if defined(OPTIM)
		    if (rs2) {
#endif
			gen_movl_reg_T1(rs2);
			gen_op_add_T1_T0();
#if defined(OPTIM)
		    }
#endif
                }
		switch (xop) {
		case 0x38:	/* jmpl */
		    {
			if (rd != 0) {
#ifdef TARGET_SPARC64
                            if (dc->pc == (uint32_t)dc->pc) {
                                gen_op_movl_T1_im(dc->pc);
                            } else {
                                gen_op_movq_T1_im64(dc->pc >> 32, dc->pc);
                            }
#else
			    gen_op_movl_T1_im(dc->pc);
#endif
			    gen_movl_T1_reg(rd);
			}
                        gen_mov_pc_npc(dc);
			gen_op_movl_npc_T0();
			dc->npc = DYNAMIC_PC;
		    }
		    goto jmp_insn;
#if !defined(CONFIG_USER_ONLY) && !defined(TARGET_SPARC64)
		case 0x39:	/* rett, V9 return */
		    {
			if (!supervisor(dc))
			    goto priv_insn;
                        gen_mov_pc_npc(dc);
			gen_op_movl_npc_T0();
			dc->npc = DYNAMIC_PC;
			gen_op_rett();
		    }
		    goto jmp_insn;
#endif
		case 0x3b: /* flush */
		    gen_op_flush_T0();
		    break;
		case 0x3c:	/* save */
		    save_state(dc);
		    gen_op_save();
		    gen_movl_T0_reg(rd);
		    break;
		case 0x3d:	/* restore */
		    save_state(dc);
		    gen_op_restore();
		    gen_movl_T0_reg(rd);
		    break;
#if !defined(CONFIG_USER_ONLY) && defined(TARGET_SPARC64)
		case 0x3e:      /* V9 done/retry */
		    {
			switch (rd) {
			case 0:
			    if (!supervisor(dc))
				goto priv_insn;
			    dc->npc = DYNAMIC_PC;
			    dc->pc = DYNAMIC_PC;
			    gen_op_done();
			    goto jmp_insn;
			case 1:
			    if (!supervisor(dc))
				goto priv_insn;
			    dc->npc = DYNAMIC_PC;
			    dc->pc = DYNAMIC_PC;
			    gen_op_retry();
			    goto jmp_insn;
			default:
			    goto illegal_insn;
			}
		    }
		    break;
#endif
		default:
		    goto illegal_insn;
		}
            }
	    break;
	}
	break;
    case 3:			/* load/store instructions */
	{
	    unsigned int xop = GET_FIELD(insn, 7, 12);
	    rs1 = GET_FIELD(insn, 13, 17);
	    gen_movl_reg_T0(rs1);
	    if (IS_IMM) {	/* immediate */
		rs2 = GET_FIELDs(insn, 19, 31);
#if defined(OPTIM)
		if (rs2 != 0) {
#endif
		    gen_movl_simm_T1(rs2);
		    gen_op_add_T1_T0();
#if defined(OPTIM)
		}
#endif
	    } else {		/* register */
		rs2 = GET_FIELD(insn, 27, 31);
#if defined(OPTIM)
		if (rs2 != 0) {
#endif
		    gen_movl_reg_T1(rs2);
		    gen_op_add_T1_T0();
#if defined(OPTIM)
		}
#endif
	    }
	    if (xop < 4 || (xop > 7 && xop < 0x14 && xop != 0x0e) || \
		    (xop > 0x17 && xop < 0x1d ) || \
		    (xop > 0x2c && xop < 0x33) || xop == 0x1f) {
		switch (xop) {
		case 0x0:	/* load word */
		    gen_op_ldst(ld);
		    break;
		case 0x1:	/* load unsigned byte */
		    gen_op_ldst(ldub);
		    break;
		case 0x2:	/* load unsigned halfword */
		    gen_op_ldst(lduh);
		    break;
		case 0x3:	/* load double word */
		    gen_op_ldst(ldd);
		    gen_movl_T0_reg(rd + 1);
		    break;
		case 0x9:	/* load signed byte */
		    gen_op_ldst(ldsb);
		    break;
		case 0xa:	/* load signed halfword */
		    gen_op_ldst(ldsh);
		    break;
		case 0xd:	/* ldstub -- XXX: should be atomically */
		    gen_op_ldst(ldstub);
		    break;
		case 0x0f:	/* swap register with memory. Also atomically */
		    gen_movl_reg_T1(rd);
		    gen_op_ldst(swap);
		    break;
#if !defined(CONFIG_USER_ONLY) || defined(TARGET_SPARC64)
		case 0x10:	/* load word alternate */
#ifndef TARGET_SPARC64
		    if (!supervisor(dc))
			goto priv_insn;
#endif
		    gen_op_lda(insn, 1, 4, 0);
		    break;
		case 0x11:	/* load unsigned byte alternate */
#ifndef TARGET_SPARC64
		    if (!supervisor(dc))
			goto priv_insn;
#endif
		    gen_op_lduba(insn, 1, 1, 0);
		    break;
		case 0x12:	/* load unsigned halfword alternate */
#ifndef TARGET_SPARC64
		    if (!supervisor(dc))
			goto priv_insn;
#endif
		    gen_op_lduha(insn, 1, 2, 0);
		    break;
		case 0x13:	/* load double word alternate */
#ifndef TARGET_SPARC64
		    if (!supervisor(dc))
			goto priv_insn;
#endif
		    gen_op_ldda(insn, 1, 8, 0);
		    gen_movl_T0_reg(rd + 1);
		    break;
		case 0x19:	/* load signed byte alternate */
#ifndef TARGET_SPARC64
		    if (!supervisor(dc))
			goto priv_insn;
#endif
		    gen_op_ldsba(insn, 1, 1, 1);
		    break;
		case 0x1a:	/* load signed halfword alternate */
#ifndef TARGET_SPARC64
		    if (!supervisor(dc))
			goto priv_insn;
#endif
		    gen_op_ldsha(insn, 1, 2 ,1);
		    break;
		case 0x1d:	/* ldstuba -- XXX: should be atomically */
#ifndef TARGET_SPARC64
		    if (!supervisor(dc))
			goto priv_insn;
#endif
		    gen_op_ldstuba(insn, 1, 1, 0);
		    break;
		case 0x1f:	/* swap reg with alt. memory. Also atomically */
#ifndef TARGET_SPARC64
		    if (!supervisor(dc))
			goto priv_insn;
#endif
		    gen_movl_reg_T1(rd);
		    gen_op_swapa(insn, 1, 4, 0);
		    break;

#ifndef TARGET_SPARC64
                    /* avoid warnings */
                    (void) &gen_op_stfa;
                    (void) &gen_op_stdfa;
                    (void) &gen_op_ldfa;
                    (void) &gen_op_lddfa;
#else
#if !defined(CONFIG_USER_ONLY)
		    (void) &gen_op_cas;
		    (void) &gen_op_casx;
#endif
#endif
#endif
#ifdef TARGET_SPARC64
		case 0x08: /* V9 ldsw */
		    gen_op_ldst(ldsw);
		    break;
		case 0x0b: /* V9 ldx */
		    gen_op_ldst(ldx);
		    break;
		case 0x18: /* V9 ldswa */
		    gen_op_ldswa(insn, 1, 4, 1);
		    break;
		case 0x1b: /* V9 ldxa */
		    gen_op_ldxa(insn, 1, 8, 0);
		    break;
		case 0x2d: /* V9 prefetch, no effect */
		    goto skip_move;
		case 0x30: /* V9 ldfa */
		    gen_op_ldfa(insn, 1, 8, 0); // XXX
		    break;
		case 0x33: /* V9 lddfa */
		    gen_op_lddfa(insn, 1, 8, 0); // XXX

		    break;
		case 0x3d: /* V9 prefetcha, no effect */
		    goto skip_move;
		case 0x32: /* V9 ldqfa */
		    goto nfpu_insn;
#endif
		default:
		    goto illegal_insn;
		}
		gen_movl_T1_reg(rd);
#ifdef TARGET_SPARC64
	    skip_move: ;
#endif
	    } else if (xop >= 0x20 && xop < 0x24) {
                if (gen_trap_ifnofpu(dc))
                    goto jmp_insn;
		switch (xop) {
		case 0x20:	/* load fpreg */
		    gen_op_ldst(ldf);
		    gen_op_store_FT0_fpr(rd);
		    break;
		case 0x21:	/* load fsr */
		    gen_op_ldst(ldf);
		    gen_op_ldfsr();
		    break;
		case 0x22:      /* load quad fpreg */
		    goto nfpu_insn;
		case 0x23:	/* load double fpreg */
		    gen_op_ldst(lddf);
		    gen_op_store_DT0_fpr(DFPREG(rd));
		    break;
		default:
		    goto illegal_insn;
		}
	    } else if (xop < 8 || (xop >= 0x14 && xop < 0x18) || \
		       xop == 0xe || xop == 0x1e) {
		gen_movl_reg_T1(rd);
		switch (xop) {
		case 0x4:
		    gen_op_ldst(st);
		    break;
		case 0x5:
		    gen_op_ldst(stb);
		    break;
		case 0x6:
		    gen_op_ldst(sth);
		    break;
		case 0x7:
                    flush_T2(dc);
		    gen_movl_reg_T2(rd + 1);
		    gen_op_ldst(std);
		    break;
#if !defined(CONFIG_USER_ONLY) || defined(TARGET_SPARC64)
		case 0x14:
#ifndef TARGET_SPARC64
		    if (!supervisor(dc))
			goto priv_insn;
#endif
		    gen_op_sta(insn, 0, 4, 0);
                    break;
		case 0x15:
#ifndef TARGET_SPARC64
		    if (!supervisor(dc))
			goto priv_insn;
#endif
		    gen_op_stba(insn, 0, 1, 0);
                    break;
		case 0x16:
#ifndef TARGET_SPARC64
		    if (!supervisor(dc))
			goto priv_insn;
#endif
		    gen_op_stha(insn, 0, 2, 0);
                    break;
		case 0x17:
#ifndef TARGET_SPARC64
		    if (!supervisor(dc))
			goto priv_insn;
#endif
                    flush_T2(dc);
		    gen_movl_reg_T2(rd + 1);
		    gen_op_stda(insn, 0, 8, 0);
                    break;
#endif
#ifdef TARGET_SPARC64
		case 0x0e: /* V9 stx */
		    gen_op_ldst(stx);
		    break;
		case 0x1e: /* V9 stxa */
		    gen_op_stxa(insn, 0, 8, 0); // XXX
		    break;
#endif
		default:
		    goto illegal_insn;
		}
	    } else if (xop > 0x23 && xop < 0x28) {
                if (gen_trap_ifnofpu(dc))
                    goto jmp_insn;
		switch (xop) {
		case 0x24:
                    gen_op_load_fpr_FT0(rd);
		    gen_op_ldst(stf);
		    break;
		case 0x25: /* stfsr, V9 stxfsr */
		    gen_op_stfsr();
		    gen_op_ldst(stf);
		    break;
		case 0x26: /* stdfq */
		    goto nfpu_insn;
		case 0x27:
                    gen_op_load_fpr_DT0(DFPREG(rd));
		    gen_op_ldst(stdf);
		    break;
		default:
		    goto illegal_insn;
		}
	    } else if (xop > 0x33 && xop < 0x3f) {
#ifdef TARGET_SPARC64
		switch (xop) {
		case 0x34: /* V9 stfa */
		    gen_op_stfa(insn, 0, 0, 0); // XXX
		    break;
		case 0x37: /* V9 stdfa */
		    gen_op_stdfa(insn, 0, 0, 0); // XXX
		    break;
		case 0x3c: /* V9 casa */
		    gen_op_casa(insn, 0, 4, 0); // XXX
		    break;
		case 0x3e: /* V9 casxa */
		    gen_op_casxa(insn, 0, 8, 0); // XXX
		    break;
		case 0x36: /* V9 stqfa */
		    goto nfpu_insn;
		default:
		    goto illegal_insn;
		}
#else
		goto illegal_insn;
#endif
            }
	    else
		goto illegal_insn;
	}
	break;
    }
    /* default case for non jump instructions */
    if (dc->npc == DYNAMIC_PC) {
	dc->pc = DYNAMIC_PC;
	gen_op_next_insn();
    } else if (dc->npc == JUMP_PC) {
        /* we can do a static jump */
        gen_branch2(dc, (long)dc->tb, dc->jump_pc[0], dc->jump_pc[1]);
        dc->is_br = 1;
    } else {
	dc->pc = dc->npc;
	dc->npc = dc->npc + 4;
    }
 jmp_insn:
    return;
 illegal_insn:
    save_state(dc);
    gen_op_exception(TT_ILL_INSN);
    dc->is_br = 1;
    return;
#if !defined(CONFIG_USER_ONLY)
 priv_insn:
    save_state(dc);
    gen_op_exception(TT_PRIV_INSN);
    dc->is_br = 1;
    return;
#endif
 nfpu_insn:
    save_state(dc);
    gen_op_fpexception_im(FSR_FTT_UNIMPFPOP);
    dc->is_br = 1;
}

static inline int gen_intermediate_code_internal(TranslationBlock * tb,
						 int spc, CPUSPARCState *env)
{
    target_ulong pc_start, last_pc;
    uint16_t *gen_opc_end;
    DisasContext dc1, *dc = &dc1;
    int j, lj = -1;

    memset(dc, 0, sizeof(DisasContext));
    dc->tb = tb;
    pc_start = tb->pc;
    dc->pc = pc_start;
    last_pc = dc->pc;
    dc->npc = (target_ulong) tb->cs_base;
#if defined(CONFIG_USER_ONLY)
    dc->mem_idx = 0;
    dc->fpu_enabled = 1;
#else
    dc->mem_idx = ((env->psrs) != 0);
#ifdef TARGET_SPARC64
    dc->fpu_enabled = (((env->pstate & PS_PEF) != 0) && ((env->fprs & FPRS_FEF) != 0));
#else
    dc->fpu_enabled = ((env->psref) != 0);
#endif
#endif
    gen_opc_ptr = gen_opc_buf;
    gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
    gen_opparam_ptr = gen_opparam_buf;
    nb_gen_labels = 0;

    do {
        if (env->nb_breakpoints > 0) {
            for(j = 0; j < env->nb_breakpoints; j++) {
                if (env->breakpoints[j] == dc->pc) {
		    if (dc->pc != pc_start)
			save_state(dc);
                    gen_op_debug();
		    gen_op_movl_T0_0();
		    gen_op_exit_tb();
		    dc->is_br = 1;
                    goto exit_gen_loop;
                }
            }
        }
        if (spc) {
            if (loglevel > 0)
                fprintf(logfile, "Search PC...\n");
            j = gen_opc_ptr - gen_opc_buf;
            if (lj < j) {
                lj++;
                while (lj < j)
                    gen_opc_instr_start[lj++] = 0;
                gen_opc_pc[lj] = dc->pc;
                gen_opc_npc[lj] = dc->npc;
                gen_opc_instr_start[lj] = 1;
            }
        }
	last_pc = dc->pc;
	disas_sparc_insn(dc);

	if (dc->is_br)
	    break;
	/* if the next PC is different, we abort now */
	if (dc->pc != (last_pc + 4))
	    break;
        /* if we reach a page boundary, we stop generation so that the
           PC of a TT_TFAULT exception is always in the right page */
        if ((dc->pc & (TARGET_PAGE_SIZE - 1)) == 0)
            break;
        /* if single step mode, we generate only one instruction and
           generate an exception */
        if (env->singlestep_enabled) {
            gen_jmp_im(dc->pc);
            gen_op_movl_T0_0();
            gen_op_exit_tb();
            break;
        }
    } while ((gen_opc_ptr < gen_opc_end) &&
	     (dc->pc - pc_start) < (TARGET_PAGE_SIZE - 32));

 exit_gen_loop:
    if (!dc->is_br) {
        if (dc->pc != DYNAMIC_PC && 
            (dc->npc != DYNAMIC_PC && dc->npc != JUMP_PC)) {
            /* static PC and NPC: we can use direct chaining */
            gen_branch(dc, (long)tb, dc->pc, dc->npc);
        } else {
            if (dc->pc != DYNAMIC_PC)
                gen_jmp_im(dc->pc);
            save_npc(dc);
            gen_op_movl_T0_0();
            gen_op_exit_tb();
        }
    }
    *gen_opc_ptr = INDEX_op_end;
    if (spc) {
        j = gen_opc_ptr - gen_opc_buf;
        lj++;
        while (lj <= j)
            gen_opc_instr_start[lj++] = 0;
        tb->size = 0;
#if 0
        if (loglevel > 0) {
            page_dump(logfile);
        }
#endif
        gen_opc_jump_pc[0] = dc->jump_pc[0];
        gen_opc_jump_pc[1] = dc->jump_pc[1];
    } else {
        tb->size = last_pc + 4 - pc_start;
    }
#ifdef DEBUG_DISAS
    if (loglevel & CPU_LOG_TB_IN_ASM) {
	fprintf(logfile, "--------------\n");
	fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start));
	target_disas(logfile, pc_start, last_pc + 4 - pc_start, 0);
	fprintf(logfile, "\n");
        if (loglevel & CPU_LOG_TB_OP) {
            fprintf(logfile, "OP:\n");
            dump_ops(gen_opc_buf, gen_opparam_buf);
            fprintf(logfile, "\n");
        }
    }
#endif
    return 0;
}

int gen_intermediate_code(CPUSPARCState * env, TranslationBlock * tb)
{
    return gen_intermediate_code_internal(tb, 0, env);
}

int gen_intermediate_code_pc(CPUSPARCState * env, TranslationBlock * tb)
{
    return gen_intermediate_code_internal(tb, 1, env);
}

extern int ram_size;

void cpu_reset(CPUSPARCState *env)
{
    memset(env, 0, sizeof(*env));
    tlb_flush(env, 1);
    env->cwp = 0;
    env->wim = 1;
    env->regwptr = env->regbase + (env->cwp * 16);
#if defined(CONFIG_USER_ONLY)
    env->user_mode_only = 1;
#ifdef TARGET_SPARC64
    env->cleanwin = NWINDOWS - 1;
    env->cansave = NWINDOWS - 1;
#endif
#else
    env->psrs = 1;
    env->psrps = 1;
    env->gregs[1] = ram_size;
#ifdef TARGET_SPARC64
    env->pstate = PS_PRIV;
    env->version = GET_VER(env);
    env->pc = 0x1fff0000000ULL;
#else
    env->mmuregs[0] = (0x04 << 24); /* Impl 0, ver 4, MMU disabled */
    env->pc = 0xffd00000;
#endif
    env->npc = env->pc + 4;
#endif
}

CPUSPARCState *cpu_sparc_init(void)
{
    CPUSPARCState *env;

    env = qemu_mallocz(sizeof(CPUSPARCState));
    if (!env)
	return NULL;
    cpu_exec_init(env);
    cpu_reset(env);
    return (env);
}

#define GET_FLAG(a,b) ((env->psr & a)?b:'-')

void cpu_dump_state(CPUState *env, FILE *f, 
                    int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
                    int flags)
{
    int i, x;

    cpu_fprintf(f, "pc: " TARGET_FMT_lx "  npc: " TARGET_FMT_lx "\n", env->pc, env->npc);
    cpu_fprintf(f, "General Registers:\n");
    for (i = 0; i < 4; i++)
	cpu_fprintf(f, "%%g%c: " TARGET_FMT_lx "\t", i + '0', env->gregs[i]);
    cpu_fprintf(f, "\n");
    for (; i < 8; i++)
	cpu_fprintf(f, "%%g%c: " TARGET_FMT_lx "\t", i + '0', env->gregs[i]);
    cpu_fprintf(f, "\nCurrent Register Window:\n");
    for (x = 0; x < 3; x++) {
	for (i = 0; i < 4; i++)
	    cpu_fprintf(f, "%%%c%d: " TARGET_FMT_lx "\t",
		    (x == 0 ? 'o' : (x == 1 ? 'l' : 'i')), i,
		    env->regwptr[i + x * 8]);
	cpu_fprintf(f, "\n");
	for (; i < 8; i++)
	    cpu_fprintf(f, "%%%c%d: " TARGET_FMT_lx "\t",
		    (x == 0 ? 'o' : x == 1 ? 'l' : 'i'), i,
		    env->regwptr[i + x * 8]);
	cpu_fprintf(f, "\n");
    }
    cpu_fprintf(f, "\nFloating Point Registers:\n");
    for (i = 0; i < 32; i++) {
        if ((i & 3) == 0)
            cpu_fprintf(f, "%%f%02d:", i);
        cpu_fprintf(f, " %016lf", env->fpr[i]);
        if ((i & 3) == 3)
            cpu_fprintf(f, "\n");
    }
#ifdef TARGET_SPARC64
    cpu_fprintf(f, "pstate: 0x%08x ccr: 0x%02x asi: 0x%02x tl: %d\n",
		env->pstate, GET_CCR(env), env->asi, env->tl);
    cpu_fprintf(f, "cansave: %d canrestore: %d otherwin: %d wstate %d cleanwin %d cwp %d\n",
		env->cansave, env->canrestore, env->otherwin, env->wstate,
		env->cleanwin, NWINDOWS - 1 - env->cwp);
#else
    cpu_fprintf(f, "psr: 0x%08x -> %c%c%c%c %c%c%c wim: 0x%08x\n", GET_PSR(env),
	    GET_FLAG(PSR_ZERO, 'Z'), GET_FLAG(PSR_OVF, 'V'),
	    GET_FLAG(PSR_NEG, 'N'), GET_FLAG(PSR_CARRY, 'C'),
	    env->psrs?'S':'-', env->psrps?'P':'-', 
	    env->psret?'E':'-', env->wim);
#endif
    cpu_fprintf(f, "fsr: 0x%08x\n", GET_FSR32(env));
}

#if defined(CONFIG_USER_ONLY)
target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
{
    return addr;
}

#else
extern int get_physical_address (CPUState *env, target_phys_addr_t *physical, int *prot,
                                 int *access_index, target_ulong address, int rw,
                                 int is_user);

target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
{
    target_phys_addr_t phys_addr;
    int prot, access_index;

    if (get_physical_address(env, &phys_addr, &prot, &access_index, addr, 2, 0) != 0)
        if (get_physical_address(env, &phys_addr, &prot, &access_index, addr, 0, 0) != 0)
            return -1;
    return phys_addr;
}
#endif

void helper_flush(target_ulong addr)
{
    addr &= ~7;
    tb_invalidate_page_range(addr, addr + 8);
}