parse_isa.cpp

這是一個arm模擬器 以C++實做 主要模擬ARM9架構

/* A Bison parser, made by GNU Bison 1.875c.  */

/* Skeleton parser for Yacc-like parsing with Bison,
   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.

   This program 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 2, or (at your option)
   any later version.

   This program 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 this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

/* As a special exception, when this file is copied by Bison into a
   Bison output file, you may use that output file without restriction.
   This special exception was added by the Free Software Foundation
   in version 1.24 of Bison.  */

/* Written by Richard Stallman by simplifying the original so called
   ``semantic'' parser.  */

/* All symbols defined below should begin with yy or YY, to avoid
   infringing on user name space.  This should be done even for local
   variables, as they might otherwise be expanded by user macros.
   There are some unavoidable exceptions within include files to
   define necessary library symbols; they are noted "INFRINGES ON
   USER NAME SPACE" below.  */

/* Identify Bison output.  */
#define YYBISON 1

/* Skeleton name.  */
#define YYSKELETON_NAME "yacc.c"

/* Pure parsers.  */
#define YYPURE 0

/* Using locations.  */
#define YYLSP_NEEDED 0

/* If NAME_PREFIX is specified substitute the variables and functions
   names.  */
#define yyparse isa_parse
#define yylex   isa_lex
#define yyerror isa_error
#define yylval  isa_lval
#define yychar  isa_char
#define yydebug isa_debug
#define yynerrs isa_nerrs


/* Tokens.  */
#ifndef YYTOKENTYPE
# define YYTOKENTYPE
   /* Put the tokens into the symbol table, so that GDB and other debuggers
      know about them.  */
   enum yytokentype {
     TK_OP = 258,
     TK_GRP = 259,
     TK_VAR = 260,
     TK_FIELD = 261,
     TK_IDENT = 262,
     TK_NUM = 263,
     TK_PAT = 264,
     TK_STR = 265
   };
#endif
#define TK_OP 258
#define TK_GRP 259
#define TK_VAR 260
#define TK_FIELD 261
#define TK_IDENT 262
#define TK_NUM 263
#define TK_PAT 264
#define TK_STR 265




/* Copy the first part of user declarations.  */
#line 1 "parse_isa.y"


#include <vector>
#include <string>
#include "cstdlib"
#include "issgen.hpp"
#include <FlexLexer.h>

#define YYERROR_VERBOSE

using namespace issgen;

using std::vector;
using std::string;

/* globals shared across parsers */
extern int isa_lex();
extern void isa_error(char *);

static void warn(char *, Symbol);

/* some globals for parsing isa program */
extern isa_prog *isa_parser_result;



/* Enabling traces.  */
#ifndef YYDEBUG
# define YYDEBUG 0
#endif

/* Enabling verbose error messages.  */
#ifdef YYERROR_VERBOSE
# undef YYERROR_VERBOSE
# define YYERROR_VERBOSE 1
#else
# define YYERROR_VERBOSE 0
#endif

#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
#line 27 "parse_isa.y"
typedef union YYSTYPE {

	char *strval;

	unsigned uint;
	Symbol sym_t;

	VAR_ENV *venv_t;
	FIELD_ENV *fenv_t;

	OP_CON_T *op_con_t;
	OP_CON_ENV *op_con_env_t;

	class oper_base *oper_t;
	vector<class oper_base *> *oper_list_t;

	vector<bin_code *> *code_list_t;
} YYSTYPE;
/* Line 191 of yacc.c.  */
#line 150 "parse_isa.cpp"
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
# define YYSTYPE_IS_DECLARED 1
# define YYSTYPE_IS_TRIVIAL 1
#endif



/* Copy the second part of user declarations.  */


/* Line 214 of yacc.c.  */
#line 162 "parse_isa.cpp"

#if ! defined (yyoverflow) || YYERROR_VERBOSE

# ifndef YYFREE
#  define YYFREE free
# endif
# ifndef YYMALLOC
#  define YYMALLOC malloc
# endif

/* The parser invokes alloca or malloc; define the necessary symbols.  */

# ifdef YYSTACK_USE_ALLOCA
#  if YYSTACK_USE_ALLOCA
#   define YYSTACK_ALLOC alloca
#  endif
# else
#  if defined (alloca) || defined (_ALLOCA_H)
#   define YYSTACK_ALLOC alloca
#  else
#   ifdef __GNUC__
#    define YYSTACK_ALLOC __builtin_alloca
#   endif
#  endif
# endif

# ifdef YYSTACK_ALLOC
   /* Pacify GCC's `empty if-body' warning. */
#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
# else
#  if defined (__STDC__) || defined (__cplusplus)
#   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
#   define YYSIZE_T size_t
#  endif
#  define YYSTACK_ALLOC YYMALLOC
#  define YYSTACK_FREE YYFREE
# endif
#endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */


#if (! defined (yyoverflow) \
     && (! defined (__cplusplus) \
	 || (defined (YYSTYPE_IS_TRIVIAL) && YYSTYPE_IS_TRIVIAL)))

/* A type that is properly aligned for any stack member.  */
union yyalloc
{
  short yyss;
  YYSTYPE yyvs;
  };

/* The size of the maximum gap between one aligned stack and the next.  */
# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)

/* The size of an array large to enough to hold all stacks, each with
   N elements.  */
# define YYSTACK_BYTES(N) \
     ((N) * (sizeof (short) + sizeof (YYSTYPE))				\
      + YYSTACK_GAP_MAXIMUM)

/* Copy COUNT objects from FROM to TO.  The source and destination do
   not overlap.  */
# ifndef YYCOPY
#  if defined (__GNUC__) && 1 < __GNUC__
#   define YYCOPY(To, From, Count) \
      __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
#  else
#   define YYCOPY(To, From, Count)		\
      do					\
	{					\
	  register YYSIZE_T yyi;		\
	  for (yyi = 0; yyi < (Count); yyi++)	\
	    (To)[yyi] = (From)[yyi];		\
	}					\
      while (0)
#  endif
# endif

/* Relocate STACK from its old location to the new one.  The
   local variables YYSIZE and YYSTACKSIZE give the old and new number of
   elements in the stack, and YYPTR gives the new location of the
   stack.  Advance YYPTR to a properly aligned location for the next
   stack.  */
# define YYSTACK_RELOCATE(Stack)					\
    do									\
      {									\
	YYSIZE_T yynewbytes;						\
	YYCOPY (&yyptr->Stack, Stack, yysize);				\
	Stack = &yyptr->Stack;						\
	yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
	yyptr += yynewbytes / sizeof (*yyptr);				\
      }									\
    while (0)

#endif

#if defined (__STDC__) || defined (__cplusplus)
   typedef signed char yysigned_char;
#else
   typedef short yysigned_char;
#endif

/* YYFINAL -- State number of the termination state. */
#define YYFINAL  5
/* YYLAST -- Last index in YYTABLE.  */
#define YYLAST   53

/* YYNTOKENS -- Number of terminals. */
#define YYNTOKENS  18
/* YYNNTS -- Number of nonterminals. */
#define YYNNTS  11
/* YYNRULES -- Number of rules. */
#define YYNRULES  20
/* YYNRULES -- Number of states. */
#define YYNSTATES  56

/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
#define YYUNDEFTOK  2
#define YYMAXUTOK   265

#define YYTRANSLATE(YYX) 						\
  ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)

/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX.  */
static const unsigned char yytranslate[] =
{
       0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
      15,    16,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,    13,    14,
       2,    17,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,    11,     2,    12,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
       5,     6,     7,     8,     9,    10
};

#if YYDEBUG
/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
   YYRHS.  */
static const unsigned char yyprhs[] =
{
       0,     0,     3,     7,    12,    17,    23,    28,    32,    37,
      43,    45,    48,    57,    63,    65,    67,    71,    75,    77,
      80
};

/* YYRHS -- A `-1'-separated list of the rules' RHS. */
static const yysigned_char yyrhs[] =
{
      19,     0,    -1,    20,    22,    24,    -1,     6,    11,    21,
      12,    -1,     7,    13,     8,    14,    -1,    21,     7,    13,
       8,    14,    -1,     5,    11,    23,    12,    -1,     5,    11,
      12,    -1,     7,    13,     7,    14,    -1,    23,     7,    13,
       7,    14,    -1,    25,    -1,    24,    25,    -1,     3,     7,
      15,    26,    16,    11,    27,    12,    -1,     4,     7,    11,
      24,    12,    -1,     9,    -1,     7,    -1,    26,    13,     9,
      -1,    26,    13,     7,    -1,    28,    -1,    27,    28,    -1,
       7,    17,    10,    -1
};

/* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
static const unsigned char yyrline[] =
{
       0,    72,    72,    77,    82,    86,    97,   100,   105,   109,
     120,   124,   130,   133,   139,   144,   148,   153,   159,   164,
     176
};
#endif

#if YYDEBUG || YYERROR_VERBOSE
/* YYTNME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
   First, the terminals, then, starting at YYNTOKENS, nonterminals. */
static const char *const yytname[] =
{
  "$end", "error", "$undefined", "\"op\"", "\"group\"", "\"var\"",
  "\"field\"", "\"identifier\"", "\"integer\"", "\"boolean pattern\"",
  "\"string literal\"", "'{'", "'}'", "':'", "';'", "'('", "')'", "'='",
  "$accept", "prog", "fieldsec", "field_list", "varsec", "var_list",
  "op_list", "op", "pattern", "opfld_env", "opfld", 0
};
#endif

# ifdef YYPRINT
/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
   token YYLEX-NUM.  */
static const unsigned short yytoknum[] =
{
       0,   256,   257,   258,   259,   260,   261,   262,   263,   264,
     265,   123,   125,    58,    59,    40,    41,    61
};
# endif

/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
static const unsigned char yyr1[] =
{
       0,    18,    19,    20,    21,    21,    22,    22,    23,    23,
      24,    24,    25,    25,    26,    26,    26,    26,    27,    27,
      28
};

/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
static const unsigned char yyr2[] =
{
       0,     2,     3,     4,     4,     5,     4,     3,     4,     5,
       1,     2,     8,     5,     1,     1,     3,     3,     1,     2,
       3
};

/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
   STATE-NUM when YYTABLE doesn't specify something else to do.  Zero
   means the default is an error.  */
static const unsigned char yydefact[] =
{
       0,     0,     0,     0,     0,     1,     0,     0,     0,     0,
       0,     0,     0,     2,    10,     0,     0,     3,     0,     7,
       0,     0,     0,    11,     0,     0,     0,     0,     6,     0,
       0,     4,     0,     0,     0,    15,    14,     0,     0,     5,
       8,     0,     0,     0,    13,     9,    17,    16,     0,     0,
       0,    18,     0,    12,    19,    20
};

/* YYDEFGOTO[NTERM-NUM]. */
static const yysigned_char yydefgoto[] =
{
      -1,     2,     3,     9,     7,    20,    13,    14,    37,    50,
      51
};

/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
   STATE-NUM.  */
#define YYPACT_NINF -18
static const yysigned_char yypact[] =
{
      15,    -6,    22,    18,    17,   -18,    19,    16,    13,    -4,
      -3,    20,    21,    16,   -18,    23,    24,   -18,    25,   -18,
      -1,    14,    28,   -18,    26,    27,    29,    30,   -18,     6,
      16,   -18,    31,    32,    34,   -18,   -18,     1,    -2,   -18,
     -18,    33,     9,    37,   -18,   -18,   -18,   -18,    35,    36,
       0,   -18,    39,   -18,   -18,   -18
};

/* YYPGOTO[NTERM-NUM].  */
static const yysigned_char yypgoto[] =
{
     -18,   -18,   -18,   -18,   -18,   -18,     2,   -13,   -18,   -18,
     -17
};

/* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
   positive, shift that token.  If negative, reduce the rule which
   number is the opposite.  If zero, do what YYDEFACT says.
   If YYTABLE_NINF, syntax error.  */
#define YYTABLE_NINF -1
static const unsigned char yytable[] =
{
      23,    11,    12,    16,    18,     4,    27,    49,    17,    19,
      44,    28,    53,    35,    42,    36,    46,    43,    47,    11,
      12,     1,     5,     6,     8,    23,    15,    21,    22,    29,
      10,    24,    38,    54,     0,    32,    33,    25,    26,    30,
      31,    41,    49,    34,     0,    39,    40,    45,    48,    55,
       0,     0,     0,    52
};

static const yysigned_char yycheck[] =
{
      13,     3,     4,     7,     7,    11,     7,     7,    12,    12,
      12,    12,    12,     7,    13,     9,     7,    16,     9,     3,
       4,     6,     0,     5,     7,    38,    13,     7,     7,    15,
      11,     8,    30,    50,    -1,     8,     7,    13,    13,    11,
      14,     7,     7,    13,    -1,    14,    14,    14,    11,    10,
      -1,    -1,    -1,    17
};

/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
   symbol of state STATE-NUM.  */
static const unsigned char yystos[] =
{
       0,     6,    19,    20,    11,     0,     5,    22,     7,    21,
      11,     3,     4,    24,    25,    13,     7,    12,     7,    12,
      23,     7,     7,    25,     8,    13,    13,     7,    12,    15,
      11,    14,     8,     7,    13,     7,     9,    26,    24,    14,
      14,     7,    13,    16,    12,    14,     7,     9,    11,     7,
      27,    28,    17,    12,    28,    10
};

#if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__)
# define YYSIZE_T __SIZE_TYPE__
#endif
#if ! defined (YYSIZE_T) && defined (size_t)
# define YYSIZE_T size_t
#endif
#if ! defined (YYSIZE_T)
# if defined (__STDC__) || defined (__cplusplus)
#  include <stddef.h> /* INFRINGES ON USER NAME SPACE */
#  define YYSIZE_T size_t
# endif
#endif
#if ! defined (YYSIZE_T)
# define YYSIZE_T unsigned int
#endif

#define yyerrok		(yyerrstatus = 0)
#define yyclearin	(yychar = YYEMPTY)
#define YYEMPTY		(-2)
#define YYEOF		0

#define YYACCEPT	goto yyacceptlab
#define YYABORT		goto yyabortlab
#define YYERROR		goto yyerrorlab