target/xtensa: import libisa source

obj-y += core-dc233c.o

obj-y += core-fsf.o

obj-$(CONFIG_SOFTMMU) += monitor.o

obj-y += xtensa-isa.o

obj-y += translate.o op_helper.o helper.o cpu.o

obj-y += gdbstub.o

/* Internal definitions for the Xtensa ISA library.

 *

 * Copyright (c) 2004-2011 Tensilica Inc.

 *

 * Permission is hereby granted, free of charge, to any person obtaining

 * a copy of this software and associated documentation files (the

 * "Software"), to deal in the Software without restriction, including

 * without limitation the rights to use, copy, modify, merge, publish,

 * distribute, sublicense, and/or sell copies of the Software, and to

 * permit persons to whom the Software is furnished to do so, subject to

 * the following conditions:

 *

 * The above copyright notice and this permission notice shall be included

 * in all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

 */

#ifndef XTENSA_ISA_INTERNAL_H

#define XTENSA_ISA_INTERNAL_H

#ifndef uint32

#define uint32 uint32_t

#endif

/* Flags. */

#define XTENSA_OPERAND_IS_REGISTER      0x00000001

#define XTENSA_OPERAND_IS_PCRELATIVE    0x00000002

#define XTENSA_OPERAND_IS_INVISIBLE     0x00000004

#define XTENSA_OPERAND_IS_UNKNOWN       0x00000008

#define XTENSA_OPCODE_IS_BRANCH         0x00000001

#define XTENSA_OPCODE_IS_JUMP           0x00000002

#define XTENSA_OPCODE_IS_LOOP           0x00000004

#define XTENSA_OPCODE_IS_CALL           0x00000008

#define XTENSA_STATE_IS_EXPORTED        0x00000001

#define XTENSA_STATE_IS_SHARED_OR       0x00000002

#define XTENSA_INTERFACE_HAS_SIDE_EFFECT 0x00000001

/* Function pointer typedefs */

typedef void (*xtensa_format_encode_fn)(xtensa_insnbuf);

typedef void (*xtensa_get_slot_fn)(const xtensa_insnbuf, xtensa_insnbuf);

typedef void (*xtensa_set_slot_fn)(xtensa_insnbuf, const xtensa_insnbuf);

typedef int (*xtensa_opcode_decode_fn)(const xtensa_insnbuf);

typedef uint32_t (*xtensa_get_field_fn)(const xtensa_insnbuf);

typedef void (*xtensa_set_field_fn)(xtensa_insnbuf, uint32_t);

typedef int (*xtensa_immed_decode_fn)(uint32_t *);

typedef int (*xtensa_immed_encode_fn)(uint32_t *);

typedef int (*xtensa_do_reloc_fn)(uint32_t *, uint32_t);

typedef int (*xtensa_undo_reloc_fn)(uint32_t *, uint32_t);

typedef void (*xtensa_opcode_encode_fn)(xtensa_insnbuf);

typedef int (*xtensa_format_decode_fn)(const xtensa_insnbuf);

typedef int (*xtensa_length_decode_fn)(const unsigned char *);

typedef struct xtensa_format_internal_struct {

    const char *name;           /* Instruction format name. */

    int length;                 /* Instruction length in bytes. */

    xtensa_format_encode_fn encode_fn;

    int num_slots;

    int *slot_id;               /* Array[num_slots] of slot IDs. */

} xtensa_format_internal;

typedef struct xtensa_slot_internal_struct {

    const char *name;                   /* Not necessarily unique. */

    const char *format;

    int position;

    xtensa_get_slot_fn get_fn;

    xtensa_set_slot_fn set_fn;

    xtensa_get_field_fn *get_field_fns; /* Array[field_id]. */

    xtensa_set_field_fn *set_field_fns; /* Array[field_id]. */

    xtensa_opcode_decode_fn opcode_decode_fn;

    const char *nop_name;

} xtensa_slot_internal;

typedef struct xtensa_operand_internal_struct {

    const char *name;

    int field_id;

    xtensa_regfile regfile;             /* Register file. */

    int num_regs;                       /* Usually 1; 2 for reg pairs, etc. */

    uint32_t flags;                     /* See XTENSA_OPERAND_* flags. */

    xtensa_immed_encode_fn encode;      /* Encode the operand value. */

    xtensa_immed_decode_fn decode;      /* Decode the value from the field. */

    xtensa_do_reloc_fn do_reloc;        /* Perform a PC-relative reloc. */

    xtensa_undo_reloc_fn undo_reloc;    /* Undo a PC-relative relocation. */

} xtensa_operand_internal;

typedef struct xtensa_arg_internal_struct {

    union {

        int operand_id;         /* For normal operands. */

        xtensa_state state;     /* For stateOperands. */

    } u;

    char inout;                 /* Direction: 'i', 'o', or 'm'. */

} xtensa_arg_internal;

typedef struct xtensa_iclass_internal_struct {

    int num_operands;           /* Size of "operands" array. */

    xtensa_arg_internal *operands;          /* Array[num_operands]. */

    int num_stateOperands;      /* Size of "stateOperands" array. */

    xtensa_arg_internal *stateOperands;     /* Array[num_stateOperands]. */

    int num_interfaceOperands;  /* Size of "interfaceOperands". */

    xtensa_interface *interfaceOperands;    /* Array[num_interfaceOperands]. */

} xtensa_iclass_internal;

typedef struct xtensa_opcode_internal_struct {

    const char *name;           /* Opcode mnemonic. */

    int iclass_id;              /* Iclass for this opcode. */

    uint32_t flags;             /* See XTENSA_OPCODE_* flags. */

    xtensa_opcode_encode_fn *encode_fns;    /* Array[slot_id]. */

    int num_funcUnit_uses;      /* Number of funcUnit_use entries. */

    xtensa_funcUnit_use *funcUnit_uses;     /* Array[num_funcUnit_uses]. */

} xtensa_opcode_internal;

typedef struct xtensa_regfile_internal_struct {

    const char *name;           /* Full name of the regfile. */

    const char *shortname;      /* Abbreviated name. */

    xtensa_regfile parent;      /* View parent (or identity). */

    int num_bits;               /* Width of the registers. */

    int num_entries;            /* Number of registers. */

} xtensa_regfile_internal;

typedef struct xtensa_interface_internal_struct {

    const char *name;           /* Interface name. */

    int num_bits;               /* Width of the interface. */

    uint32_t flags;             /* See XTENSA_INTERFACE_* flags. */

    int class_id;               /* Class of related interfaces. */

    char inout;                 /* "i" or "o". */

} xtensa_interface_internal;

typedef struct xtensa_funcUnit_internal_struct {

    const char *name;           /* Functional unit name. */

    int num_copies;             /* Number of instances. */

} xtensa_funcUnit_internal;

typedef struct xtensa_state_internal_struct {

    const char *name;           /* State name. */

    int num_bits;               /* Number of state bits. */

    uint32_t flags;             /* See XTENSA_STATE_* flags. */

} xtensa_state_internal;

typedef struct xtensa_sysreg_internal_struct {

    const char *name;           /* Register name. */

    int number;                 /* Register number. */

    int is_user;                /* Non-zero if a "user register". */

} xtensa_sysreg_internal;

typedef struct xtensa_lookup_entry_struct {

    const char *key;

    union {

        xtensa_opcode opcode;   /* Internal opcode number. */

        xtensa_sysreg sysreg;   /* Internal sysreg number. */

        xtensa_state state;     /* Internal state number. */

        xtensa_interface intf;  /* Internal interface number. */

        xtensa_funcUnit fun;    /* Internal funcUnit number. */

    } u;

} xtensa_lookup_entry;

typedef struct xtensa_isa_internal_struct {

    int is_big_endian;          /* Endianness. */

    int insn_size;              /* Maximum length in bytes. */

    int insnbuf_size;           /* Number of insnbuf_words. */

    int num_formats;

    xtensa_format_internal *formats;

    xtensa_format_decode_fn format_decode_fn;

    xtensa_length_decode_fn length_decode_fn;

    int num_slots;

    xtensa_slot_internal *slots;

    int num_fields;

    int num_operands;

    xtensa_operand_internal *operands;

    int num_iclasses;

    xtensa_iclass_internal *iclasses;

    int num_opcodes;

    xtensa_opcode_internal *opcodes;

    xtensa_lookup_entry *opname_lookup_table;

    int num_regfiles;

    xtensa_regfile_internal *regfiles;

    int num_states;

    xtensa_state_internal *states;

    xtensa_lookup_entry *state_lookup_table;

    int num_sysregs;

    xtensa_sysreg_internal *sysregs;

    xtensa_lookup_entry *sysreg_lookup_table;

    /*

     * The current Xtensa ISA only supports 256 of each kind of sysreg so

     * we can get away with implementing lookups with tables indexed by

     * the register numbers. If we ever allow larger sysreg numbers, this

     * may have to be reimplemented. The first entry in the following

     * arrays corresponds to "special" registers and the second to "user"

     * registers.

     */

    int max_sysreg_num[2];

    xtensa_sysreg *sysreg_table[2];

    int num_interfaces;

    xtensa_interface_internal *interfaces;

    xtensa_lookup_entry *interface_lookup_table;

    int num_funcUnits;

    xtensa_funcUnit_internal *funcUnits;

    xtensa_lookup_entry *funcUnit_lookup_table;

    int num_stages;             /* Number of pipe stages. */

} xtensa_isa_internal;

int xtensa_isa_name_compare(const void *, const void *);

extern xtensa_isa_status xtisa_errno;

extern char xtisa_error_msg[];

#endif /* !XTENSA_ISA_INTERNAL_H */

#include <hw/xtensa/xtensa-isa.h>