Subversion Repositories openrisc_2011-10-31

/* itbl-ops.h

   Copyright 1997, 1999, 2000, 2003, 2006, 2007 Free Software Foundation, Inc.

   This file is part of GAS, the GNU Assembler.

   GAS is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3, or (at your option)

   any later version.

   GAS 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 General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with GAS; see the file COPYING.  If not, write to the Free

   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA

   02110-1301, USA.  */

/* External functions, constants and defines for itbl support */

#ifdef HAVE_ITBL_CPU

#include "itbl-cpu.h"

#endif

/* Defaults for definitions required by generic code */

#ifndef ITBL_NUMBER_OF_PROCESSORS

#define ITBL_NUMBER_OF_PROCESSORS 1

#endif

#ifndef ITBL_MAX_BITPOS

#define ITBL_MAX_BITPOS 31

#endif

#ifndef ITBL_TYPE

#define ITBL_TYPE unsigned long

#endif

#ifndef ITBL_IS_INSN

#define ITBL_IS_INSN(insn) 1

#endif

#ifndef ITBL_DECODE_PNUM

#define ITBL_DECODE_PNUM(insn) 0

#endif

#ifndef ITBL_ENCODE_PNUM

#define ITBL_ENCODE_PNUM(pnum) 0

#endif

typedef ITBL_TYPE t_insn;

/* types of entries */

typedef enum

  {

    e_insn,

    e_dreg,

    e_regtype0 = e_dreg,

    e_creg,

    e_greg,

    e_addr,

    e_nregtypes = e_greg + 1,

    e_immed,

    e_ntypes,

    e_invtype                   /* invalid type */

  } e_type;

typedef enum

  {

    e_p0,

    e_nprocs = ITBL_NUMBER_OF_PROCESSORS,

    e_invproc                   /* invalid processor */

  } e_processor;

/* 0 means an instruction table was not specified.  */

extern int itbl_have_entries;

/* These routines are visible to the main part of the assembler */

int itbl_parse (char *insntbl);

void itbl_init (void);

char *itbl_get_field (char **s);

unsigned long itbl_assemble (char *name, char *operands);

int itbl_disassemble (char *str, unsigned long insn);

int itbl_parse (char *tbl);     /* parses insn tbl */

int itbl_get_reg_val (char *name, unsigned long *pval);

int itbl_get_val (e_processor processor, e_type type, char *name,

                  unsigned long *pval);

char *itbl_get_name (e_processor processor, e_type type, unsigned long val);

/* These routines are called by the table parser used to build the

   dynamic list of new processor instructions and registers.  */

struct itbl_entry *itbl_add_reg (int yyproc, int yytype,

                                 char *regname, int regnum);

struct itbl_entry *itbl_add_insn (int yyproc, char *name,

             unsigned long value, int sbit, int ebit, unsigned long flags);

struct itbl_field *itbl_add_operand (struct itbl_entry * e, int yytype,

                                  int sbit, int ebit, unsigned long flags);