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/* 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
 
 
 
/* Tokens.  */
#ifndef YYTOKENTYPE
# define YYTOKENTYPE
   /* Put the tokens into the symbol table, so that GDB and other debuggers
      know about them.  */
   enum yytokentype {
     DR = 258,
     AR = 259,
     FPR = 260,
     FPCR = 261,
     LPC = 262,
     ZAR = 263,
     ZDR = 264,
     LZPC = 265,
     CREG = 266,
     INDEXREG = 267,
     EXPR = 268
   };
#endif
#define DR 258
#define AR 259
#define FPR 260
#define FPCR 261
#define LPC 262
#define ZAR 263
#define ZDR 264
#define LZPC 265
#define CREG 266
#define INDEXREG 267
#define EXPR 268
 
 
 
 
/* Copy the first part of user declarations.  */
#line 28 "m68k-parse.y"
 
 
#include "as.h"
#include "tc-m68k.h"
#include "m68k-parse.h"
#include "safe-ctype.h"
 
/* Remap normal yacc parser interface names (yyparse, yylex, yyerror,
   etc), as well as gratuitously global symbol names If other parser
   generators (bison, byacc, etc) produce additional global names that
   conflict at link time, then those parser generators need to be
   fixed instead of adding those names to this list.  */
 
#define yymaxdepth m68k_maxdepth
#define yyparse m68k_parse
#define yylex   m68k_lex
#define yyerror m68k_error
#define yylval  m68k_lval
#define yychar  m68k_char
#define yydebug m68k_debug
#define yypact  m68k_pact       
#define yyr1    m68k_r1                 
#define yyr2    m68k_r2                 
#define yydef   m68k_def                
#define yychk   m68k_chk                
#define yypgo   m68k_pgo                
#define yyact   m68k_act                
#define yyexca  m68k_exca
#define yyerrflag m68k_errflag
#define yynerrs m68k_nerrs
#define yyps    m68k_ps
#define yypv    m68k_pv
#define yys     m68k_s
#define yy_yys  m68k_yys
#define yystate m68k_state
#define yytmp   m68k_tmp
#define yyv     m68k_v
#define yy_yyv  m68k_yyv
#define yyval   m68k_val
#define yylloc  m68k_lloc
#define yyreds  m68k_reds               /* With YYDEBUG defined */
#define yytoks  m68k_toks               /* With YYDEBUG defined */
#define yylhs   m68k_yylhs
#define yylen   m68k_yylen
#define yydefred m68k_yydefred
#define yydgoto m68k_yydgoto
#define yysindex m68k_yysindex
#define yyrindex m68k_yyrindex
#define yygindex m68k_yygindex
#define yytable  m68k_yytable
#define yycheck  m68k_yycheck
 
#ifndef YYDEBUG
#define YYDEBUG 1
#endif
 
/* Internal functions.  */
 
static enum m68k_register m68k_reg_parse (char **);
static int yylex (void);
static void yyerror (const char *);
 
/* The parser sets fields pointed to by this global variable.  */
static struct m68k_op *op;
 
 
 
/* 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 96 "m68k-parse.y"
typedef union YYSTYPE {
  struct m68k_indexreg indexreg;
  enum m68k_register reg;
  struct m68k_exp exp;
  unsigned long mask;
  int onereg;
  int trailing_ampersand;
} YYSTYPE;
/* Line 191 of yacc.c.  */
#line 178 "m68k-parse.c"
# 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 190 "m68k-parse.c"
 
#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  44
/* YYLAST -- Last index in YYTABLE.  */
#define YYLAST   215
 
/* YYNTOKENS -- Number of terminals. */
#define YYNTOKENS  27
/* YYNNTS -- Number of nonterminals. */
#define YYNNTS  21
/* YYNRULES -- Number of rules. */
#define YYNRULES  89
/* YYNRULES -- Number of states. */
#define YYNSTATES  180
 
/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
#define YYUNDEFTOK  2
#define YYMAXUTOK   268
 
#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,    17,     2,     2,    14,     2,
      18,    19,     2,    20,    22,    21,     2,    26,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
      15,     2,    16,     2,    25,     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,    23,     2,    24,     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,     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,    11,    12,    13
};
 
#if YYDEBUG
/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
   YYRHS.  */
static const unsigned short yyprhs[] =
{
       0,     0,     3,     5,     8,    11,    12,    14,    17,    20,
      22,    24,    26,    28,    30,    32,    35,    38,    40,    44,
      49,    54,    60,    66,    71,    75,    79,    83,    91,    99,
     106,   112,   119,   125,   132,   138,   144,   149,   159,   167,
     176,   183,   194,   203,   214,   223,   232,   235,   239,   243,
     249,   256,   267,   277,   288,   290,   292,   294,   296,   298,
     300,   302,   304,   306,   308,   310,   312,   314,   316,   317,
     319,   321,   323,   324,   327,   328,   331,   332,   335,   337,
     341,   345,   347,   349,   353,   357,   361,   363,   365,   367
};
 
/* YYRHS -- A `-1'-separated list of the rules' RHS. */
static const yysigned_char yyrhs[] =
{
      28,     0,    -1,    30,    -1,    31,    29,    -1,    32,    29,
      -1,    -1,    14,    -1,    15,    15,    -1,    16,    16,    -1,
       3,    -1,     4,    -1,     5,    -1,     6,    -1,    11,    -1,
      13,    -1,    17,    13,    -1,    14,    13,    -1,    44,    -1,
      18,     4,    19,    -1,    18,     4,    19,    20,    -1,    21,
      18,     4,    19,    -1,    18,    13,    22,    38,    19,    -1,
      18,    38,    22,    13,    19,    -1,    13,    18,    38,    19,
      -1,    18,     7,    19,    -1,    18,     8,    19,    -1,    18,
      10,    19,    -1,    18,    13,    22,    38,    22,    33,    19,
      -1,    18,    13,    22,    38,    22,    40,    19,    -1,    18,
      13,    22,    34,    41,    19,    -1,    18,    34,    22,    13,
      19,    -1,    13,    18,    38,    22,    33,    19,    -1,    18,
      38,    22,    33,    19,    -1,    13,    18,    38,    22,    40,
      19,    -1,    18,    38,    22,    40,    19,    -1,    13,    18,
      34,    41,    19,    -1,    18,    34,    41,    19,    -1,    18,
      23,    13,    41,    24,    22,    33,    42,    19,    -1,    18,
      23,    13,    41,    24,    42,    19,    -1,    18,    23,    38,
      24,    22,    33,    42,    19,    -1,    18,    23,    38,    24,
      42,    19,    -1,    18,    23,    13,    22,    38,    22,    33,
      24,    42,    19,    -1,    18,    23,    38,    22,    33,    24,
      42,    19,    -1,    18,    23,    13,    22,    38,    22,    40,
      24,    42,    19,    -1,    18,    23,    38,    22,    40,    24,
      42,    19,    -1,    18,    23,    43,    34,    41,    24,    42,
      19,    -1,    39,    25,    -1,    39,    25,    20,    -1,    39,
      25,    21,    -1,    39,    25,    18,    13,    19,    -1,    39,
      25,    18,    43,    33,    19,    -1,    39,    25,    18,    13,
      19,    25,    18,    43,    33,    19,    -1,    39,    25,    18,
      13,    19,    25,    18,    13,    19,    -1,    39,    25,    18,
      43,    33,    19,    25,    18,    13,    19,    -1,    12,    -1,
      35,    -1,    12,    -1,    36,    -1,    36,    -1,     4,    -1,
       8,    -1,     3,    -1,     9,    -1,     4,    -1,     7,    -1,
      37,    -1,    10,    -1,     8,    -1,    -1,    38,    -1,     7,
      -1,    10,    -1,    -1,    22,    38,    -1,    -1,    22,    13,
      -1,    -1,    13,    22,    -1,    46,    -1,    46,    26,    45,
      -1,    47,    26,    45,    -1,    47,    -1,    46,    -1,    46,
      26,    45,    -1,    47,    26,    45,    -1,    47,    21,    47,
      -1,     3,    -1,     4,    -1,     5,    -1,     6,    -1
};
 
/* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
static const unsigned short yyrline[] =
{
       0,   121,   121,   122,   126,   135,   136,   143,   148,   153,
     158,   163,   168,   173,   178,   183,   188,   193,   206,   211,
     216,   221,   231,   241,   251,   256,   261,   266,   273,   284,
     291,   297,   304,   310,   321,   331,   338,   344,   352,   359,
     366,   372,   380,   387,   399,   410,   423,   431,   439,   447,
     457,   464,   472,   479,   493,   494,   507,   508,   520,   521,
     522,   528,   529,   535,   536,   543,   544,   545,   552,   555,
     561,   562,   569,   572,   582,   586,   596,   600,   609,   610,
     614,   626,   630,   631,   635,   642,   652,   656,   660,   664
};
#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", "DR", "AR", "FPR", "FPCR", "LPC", "ZAR",
  "ZDR", "LZPC", "CREG", "INDEXREG", "EXPR", "'&'", "'<'", "'>'", "'#'",
  "'('", "')'", "'+'", "'-'", "','", "'['", "']'", "'@'", "'/'", "$accept",
  "operand", "optional_ampersand", "generic_operand", "motorola_operand",
  "mit_operand", "zireg", "zdireg", "zadr", "zdr", "apc", "zapc",
  "optzapc", "zpc", "optczapc", "optcexpr", "optexprc", "reglist",
  "ireglist", "reglistpair", "reglistreg", 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,   266,   267,   268,    38,    60,    62,    35,    40,    41,
      43,    45,    44,    91,    93,    64,    47
};
# endif
 
/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
static const unsigned char yyr1[] =
{
       0,    27,    28,    28,    28,    29,    29,    30,    30,    30,
      30,    30,    30,    30,    30,    30,    30,    30,    31,    31,
      31,    31,    31,    31,    31,    31,    31,    31,    31,    31,
      31,    31,    31,    31,    31,    31,    31,    31,    31,    31,
      31,    31,    31,    31,    31,    31,    32,    32,    32,    32,
      32,    32,    32,    32,    33,    33,    34,    34,    35,    35,
      35,    36,    36,    37,    37,    38,    38,    38,    39,    39,
      40,    40,    41,    41,    42,    42,    43,    43,    44,    44,
      44,    45,    45,    45,    45,    46,    47,    47,    47,    47
};
 
/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
static const unsigned char yyr2[] =
{
       0,     2,     1,     2,     2,     0,     1,     2,     2,     1,
       1,     1,     1,     1,     1,     2,     2,     1,     3,     4,
       4,     5,     5,     4,     3,     3,     3,     7,     7,     6,
       5,     6,     5,     6,     5,     5,     4,     9,     7,     8,
       6,    10,     8,    10,     8,     8,     2,     3,     3,     5,
       6,    10,     9,    10,     1,     1,     1,     1,     1,     1,
       1,     1,     1,     1,     1,     1,     1,     1,     0,     1,
       1,     1,     0,     2,     0,     2,     0,     2,     1,     3,
       3,     1,     1,     3,     3,     3,     1,     1,     1,     1
};
 
/* 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[] =
{
      68,    86,    87,    88,    89,    64,    67,    66,    13,    14,
       0,     0,     0,     0,     0,     0,     0,     2,     5,     5,
      65,    69,     0,    17,    78,     0,     0,    16,     7,     8,
      15,    61,    63,    64,    67,    62,    66,    56,     0,    76,
      72,    57,     0,     0,     1,     6,     3,     4,    46,     0,
       0,     0,    63,    72,     0,    18,    24,    25,    26,     0,
      72,     0,     0,     0,     0,     0,     0,    76,    47,    48,
      86,    87,    88,    89,    79,    82,    81,    85,    80,     0,
       0,    23,     0,    19,    72,     0,    77,     0,     0,    74,
      72,     0,    73,    36,    59,    70,    60,    71,    54,     0,
       0,    55,    58,     0,    20,     0,     0,     0,     0,    35,
       0,     0,     0,    21,     0,    73,    74,     0,     0,     0,
       0,     0,    30,    22,    32,    34,    49,    77,     0,    83,
      84,    31,    33,    29,     0,     0,     0,     0,     0,    74,
      74,    75,    74,    40,    74,     0,    50,    27,    28,     0,
       0,    74,    38,     0,     0,     0,     0,     0,    76,     0,
      74,    74,     0,    42,    44,    39,    45,     0,     0,     0,
       0,     0,    37,    52,     0,     0,    41,    43,    51,    53
};
 
/* YYDEFGOTO[NTERM-NUM]. */
static const yysigned_char yydefgoto[] =
{
      -1,    16,    46,    17,    18,    19,   100,    40,   101,   102,
      20,    92,    22,   103,    64,   120,    62,    23,    74,    75,
      76
};
 
/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
   STATE-NUM.  */
#define YYPACT_NINF -98
static const short yypact[] =
{
      89,    14,     9,    31,    35,   -98,   -98,   -98,   -98,     0,
      36,    42,    28,    56,    63,    67,    90,   -98,    75,    75,
     -98,   -98,    86,   -98,    96,   -15,   123,   -98,   -98,   -98,
     -98,   -98,    97,   115,   119,   -98,   120,   -98,   122,    16,
     126,   -98,   127,   157,   -98,   -98,   -98,   -98,    19,   154,
     154,   154,   -98,   140,    29,   144,   -98,   -98,   -98,   123,
     141,    99,    18,    70,   147,   105,   148,   152,   -98,   -98,
     -98,   -98,   -98,   -98,   -98,   142,   -13,   -98,   -98,   146,
     150,   -98,   133,   -98,   140,    60,   146,   149,   133,   153,
     140,   151,   -98,   -98,   -98,   -98,   -98,   -98,   -98,   155,
     158,   -98,   -98,   159,   -98,    62,   143,   154,   154,   -98,
     160,   161,   162,   -98,   133,   163,   164,   165,   166,   116,
     168,   167,   -98,   -98,   -98,   -98,   169,   -98,   173,   -98,
     -98,   -98,   -98,   -98,   174,   176,   133,   116,   177,   175,
     175,   -98,   175,   -98,   175,   170,   178,   -98,   -98,   180,
     181,   175,   -98,   171,   179,   182,   183,   187,   186,   189,
     175,   175,   190,   -98,   -98,   -98,   -98,    79,   143,   195,
     191,   192,   -98,   -98,   193,   194,   -98,   -98,   -98,   -98
};
 
/* YYPGOTO[NTERM-NUM].  */
static const short yypgoto[] =
{
     -98,   -98,   196,   -98,   -98,   -98,   -81,     6,   -98,    -9,
     -98,     2,   -98,   -78,   -38,   -97,   -67,   -98,   -48,   172,
      12
};
 
/* 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 -64
static const short yytable[] =
{
     106,   110,    21,    78,   111,    41,    50,   117,    50,   -10,
     118,    51,    25,   108,    -9,    80,    42,    41,    26,   138,
      52,    31,    87,     5,     6,   128,     7,    35,    54,    60,
      37,   -11,    53,   134,   -63,   -12,   135,    67,   142,    68,
      69,    61,   154,   155,    29,   156,   112,   157,    81,    27,
      41,    82,   121,    41,   162,   149,   151,    28,   150,   129,
     130,    85,    77,   170,   171,    84,    31,    32,    90,    30,
      33,    34,    35,    36,    52,    37,    38,     5,     6,   113,
       7,   126,   114,    91,   127,    43,    39,   174,   115,    45,
      44,   168,     1,     2,     3,     4,     5,     6,   173,     7,
       8,   127,     9,    10,    11,    12,    13,    14,    31,    94,
      15,    48,    95,    96,    35,    97,    55,    98,    99,    31,
      94,    88,    49,    89,    96,    35,    31,    52,    98,   141,
       5,     6,    35,     7,    56,    37,    31,    94,    57,    58,
      95,    96,    35,    97,    59,    98,    31,    94,    63,    65,
      52,    96,    35,     5,     6,    98,     7,    70,    71,    72,
      73,    66,    79,    86,    83,   105,    93,   104,   107,   109,
     122,     0,    24,   116,   123,   119,     0,   124,   125,   131,
     132,   133,     0,     0,   141,   136,   137,   143,   158,   139,
     140,   144,   146,   147,   145,   148,   152,   153,   163,   167,
       0,   164,   165,   159,   160,   161,   166,   169,   175,   172,
     176,   177,   178,   179,     0,    47
};
 
static const short yycheck[] =
{
      67,    82,     0,    51,    82,    14,    21,    88,    21,     0,
      88,    26,     0,    26,     0,    53,    14,    26,    18,   116,
       4,     3,    60,     7,     8,   106,    10,     9,    26,    13,
      12,     0,    26,   114,    25,     0,   114,    18,   119,    20,
      21,    39,   139,   140,    16,   142,    84,   144,    19,    13,
      59,    22,    90,    62,   151,   136,   137,    15,   136,   107,
     108,    59,    50,   160,   161,    59,     3,     4,    62,    13,
       7,     8,     9,    10,     4,    12,    13,     7,     8,    19,
      10,    19,    22,    13,    22,    18,    23,   168,    86,    14,
       0,   158,     3,     4,     5,     6,     7,     8,    19,    10,
      11,    22,    13,    14,    15,    16,    17,    18,     3,     4,
      21,    25,     7,     8,     9,    10,    19,    12,    13,     3,
       4,    22,    26,    24,     8,     9,     3,     4,    12,    13,
       7,     8,     9,    10,    19,    12,     3,     4,    19,    19,
       7,     8,     9,    10,    22,    12,     3,     4,    22,    22,
       4,     8,     9,     7,     8,    12,    10,     3,     4,     5,
       6,     4,    22,    22,    20,    13,    19,    19,    26,    19,
      19,    -1,     0,    24,    19,    22,    -1,    19,    19,    19,
      19,    19,    -1,    -1,    13,    22,    22,    19,    18,    24,
      24,    24,    19,    19,    25,    19,    19,    22,    19,    13,
      -1,    19,    19,    25,    24,    24,    19,    18,    13,    19,
      19,    19,    19,    19,    -1,    19
};
 
/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
   symbol of state STATE-NUM.  */
static const unsigned char yystos[] =
{
       0,     3,     4,     5,     6,     7,     8,    10,    11,    13,
      14,    15,    16,    17,    18,    21,    28,    30,    31,    32,
      37,    38,    39,    44,    46,    47,    18,    13,    15,    16,
      13,     3,     4,     7,     8,     9,    10,    12,    13,    23,
      34,    36,    38,    18,     0,    14,    29,    29,    25,    26,
      21,    26,     4,    34,    38,    19,    19,    19,    19,    22,
      13,    38,    43,    22,    41,    22,     4,    18,    20,    21,
       3,     4,     5,     6,    45,    46,    47,    47,    45,    22,
      41,    19,    22,    20,    34,    38,    22,    41,    22,    24,
      34,    13,    38,    19,     4,     7,     8,    10,    12,    13,
      33,    35,    36,    40,    19,    13,    43,    26,    26,    19,
      33,    40,    41,    19,    22,    38,    24,    33,    40,    22,
      42,    41,    19,    19,    19,    19,    19,    22,    33,    45,
      45,    19,    19,    19,    33,    40,    22,    22,    42,    24,
      24,    13,    33,    19,    24,    25,    19,    19,    19,    33,
      40,    33,    19,    22,    42,    42,    42,    42,    18,    25,
      24,    24,    42,    19,    19,    19,    19,    13,    43,    18,
      42,    42,    19,    19,    33,    13,    19,    19,    19,    19
};
 
#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
 
 
/* Like YYERROR except do call yyerror.  This remains here temporarily
   to ease the transition to the new meaning of YYERROR, for GCC.
   Once GCC version 2 has supplanted version 1, this can go.  */
 
#define YYFAIL          goto yyerrlab
 
#define YYRECOVERING()  (!!yyerrstatus)
 
#define YYBACKUP(Token, Value)                                  \
do                                                              \
  if (yychar == YYEMPTY && yylen == 1)                          \
    {                                                           \
      yychar = (Token);                                         \
      yylval = (Value);                                         \
      yytoken = YYTRANSLATE (yychar);                           \
      YYPOPSTACK;                                               \
      goto yybackup;                                            \
    }                                                           \
  else                                                          \
    {                                                           \
      yyerror ("syntax error: cannot back up");\
      YYERROR;                                                  \
    }                                                           \
while (0)
 
#define YYTERROR        1
#define YYERRCODE       256
 
/* YYLLOC_DEFAULT -- Compute the default location (before the actions
   are run).  */
 
#ifndef YYLLOC_DEFAULT
# define YYLLOC_DEFAULT(Current, Rhs, N)                \
   ((Current).first_line   = (Rhs)[1].first_line,       \
    (Current).first_column = (Rhs)[1].first_column,     \
    (Current).last_line    = (Rhs)[N].last_line,        \
    (Current).last_column  = (Rhs)[N].last_column)
#endif
 
/* YYLEX -- calling `yylex' with the right arguments.  */
 
#ifdef YYLEX_PARAM
# define YYLEX yylex (YYLEX_PARAM)
#else
# define YYLEX yylex ()
#endif
 
/* Enable debugging if requested.  */
#if YYDEBUG
 
# ifndef YYFPRINTF
#  include <stdio.h> /* INFRINGES ON USER NAME SPACE */
#  define YYFPRINTF fprintf
# endif
 
# define YYDPRINTF(Args)                        \
do {                                            \
  if (yydebug)                                  \
    YYFPRINTF Args;                             \
} while (0)
 
# define YYDSYMPRINT(Args)                      \
do {                                            \
  if (yydebug)                                  \
    yysymprint Args;                            \
} while (0)
 
# define YYDSYMPRINTF(Title, Token, Value, Location)            \
do {                                                            \
  if (yydebug)                                                  \
    {                                                           \
      YYFPRINTF (stderr, "%s ", Title);                         \
      yysymprint (stderr,                                       \
                  Token, Value);        \
      YYFPRINTF (stderr, "\n");                                 \
    }                                                           \
} while (0)
 
/*------------------------------------------------------------------.
| yy_stack_print -- Print the state stack from its BOTTOM up to its |
| TOP (included).                                                   |
`------------------------------------------------------------------*/
 
#if defined (__STDC__) || defined (__cplusplus)
static void
yy_stack_print (short *bottom, short *top)
#else
static void
yy_stack_print (bottom, top)
    short *bottom;
    short *top;
#endif
{
  YYFPRINTF (stderr, "Stack now");
  for (/* Nothing. */; bottom <= top; ++bottom)
    YYFPRINTF (stderr, " %d", *bottom);
  YYFPRINTF (stderr, "\n");
}
 
# define YY_STACK_PRINT(Bottom, Top)                            \
do {                                                            \
  if (yydebug)                                                  \
    yy_stack_print ((Bottom), (Top));                           \
} while (0)
 
 
/*------------------------------------------------.
| Report that the YYRULE is going to be reduced.  |
`------------------------------------------------*/
 
#if defined (__STDC__) || defined (__cplusplus)
static void
yy_reduce_print (int yyrule)
#else
static void
yy_reduce_print (yyrule)
    int yyrule;
#endif
{
  int yyi;
  unsigned int yylno = yyrline[yyrule];
  YYFPRINTF (stderr, "Reducing stack by rule %d (line %u), ",
             yyrule - 1, yylno);
  /* Print the symbols being reduced, and their result.  */
  for (yyi = yyprhs[yyrule]; 0 <= yyrhs[yyi]; yyi++)
    YYFPRINTF (stderr, "%s ", yytname [yyrhs[yyi]]);
  YYFPRINTF (stderr, "-> %s\n", yytname [yyr1[yyrule]]);
}
 
# define YY_REDUCE_PRINT(Rule)          \
do {                                    \
  if (yydebug)                          \
    yy_reduce_print (Rule);             \
} while (0)
 
/* Nonzero means print parse trace.  It is left uninitialized so that
   multiple parsers can coexist.  */
int yydebug;
#else /* !YYDEBUG */
# define YYDPRINTF(Args)
# define YYDSYMPRINT(Args)
# define YYDSYMPRINTF(Title, Token, Value, Location)
# define YY_STACK_PRINT(Bottom, Top)
# define YY_REDUCE_PRINT(Rule)
#endif /* !YYDEBUG */
 
 
/* YYINITDEPTH -- initial size of the parser's stacks.  */
#ifndef YYINITDEPTH
# define YYINITDEPTH 200
#endif
 
/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
   if the built-in stack extension method is used).
 
   Do not make this value too large; the results are undefined if
   SIZE_MAX < YYSTACK_BYTES (YYMAXDEPTH)
   evaluated with infinite-precision integer arithmetic.  */
 
#if defined (YYMAXDEPTH) && YYMAXDEPTH == 0
# undef YYMAXDEPTH
#endif
 
#ifndef YYMAXDEPTH
# define YYMAXDEPTH 10000
#endif
 
 
 
#if YYERROR_VERBOSE
 
# ifndef yystrlen
#  if defined (__GLIBC__) && defined (_STRING_H)
#   define yystrlen strlen
#  else
/* Return the length of YYSTR.  */
static YYSIZE_T
#   if defined (__STDC__) || defined (__cplusplus)
yystrlen (const char *yystr)
#   else
yystrlen (yystr)
     const char *yystr;
#   endif
{
  register const char *yys = yystr;
 
  while (*yys++ != '\0')
    continue;
 
  return yys - yystr - 1;
}
#  endif
# endif
 
# ifndef yystpcpy
#  if defined (__GLIBC__) && defined (_STRING_H) && defined (_GNU_SOURCE)
#   define yystpcpy stpcpy
#  else
/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
   YYDEST.  */
static char *
#   if defined (__STDC__) || defined (__cplusplus)
yystpcpy (char *yydest, const char *yysrc)
#   else
yystpcpy (yydest, yysrc)
     char *yydest;
     const char *yysrc;
#   endif
{
  register char *yyd = yydest;
  register const char *yys = yysrc;
 
  while ((*yyd++ = *yys++) != '\0')
    continue;
 
  return yyd - 1;
}
#  endif
# endif
 
#endif /* !YYERROR_VERBOSE */
 
 
 
#if YYDEBUG
/*--------------------------------.
| Print this symbol on YYOUTPUT.  |
`--------------------------------*/
 
#if defined (__STDC__) || defined (__cplusplus)
static void
yysymprint (FILE *yyoutput, int yytype, YYSTYPE *yyvaluep)
#else
static void
yysymprint (yyoutput, yytype, yyvaluep)
    FILE *yyoutput;
    int yytype;
    YYSTYPE *yyvaluep;
#endif
{
  /* Pacify ``unused variable'' warnings.  */
  (void) yyvaluep;
 
  if (yytype < YYNTOKENS)
    {
      YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
# ifdef YYPRINT
      YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
# endif
    }
  else
    YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
 
  switch (yytype)
    {
      default:
        break;
    }
  YYFPRINTF (yyoutput, ")");
}
 
#endif /* ! YYDEBUG */
/*-----------------------------------------------.
| Release the memory associated to this symbol.  |
`-----------------------------------------------*/
 
#if defined (__STDC__) || defined (__cplusplus)
static void
yydestruct (int yytype, YYSTYPE *yyvaluep)
#else
static void
yydestruct (yytype, yyvaluep)
    int yytype;
    YYSTYPE *yyvaluep;
#endif
{
  /* Pacify ``unused variable'' warnings.  */
  (void) yyvaluep;
 
  switch (yytype)
    {
 
      default:
        break;
    }
}
 
 
/* Prevent warnings from -Wmissing-prototypes.  */
 
#ifdef YYPARSE_PARAM
# if defined (__STDC__) || defined (__cplusplus)
int yyparse (void *YYPARSE_PARAM);
# else
int yyparse ();
# endif
#else /* ! YYPARSE_PARAM */
#if defined (__STDC__) || defined (__cplusplus)
int yyparse (void);
#else
int yyparse ();
#endif
#endif /* ! YYPARSE_PARAM */
 
 
 
/* The lookahead symbol.  */
int yychar;
 
/* The semantic value of the lookahead symbol.  */
YYSTYPE yylval;
 
/* Number of syntax errors so far.  */
int yynerrs;
 
 
 
/*----------.
| yyparse.  |
`----------*/
 
#ifdef YYPARSE_PARAM
# if defined (__STDC__) || defined (__cplusplus)
int yyparse (void *YYPARSE_PARAM)
# else
int yyparse (YYPARSE_PARAM)
  void *YYPARSE_PARAM;
# endif
#else /* ! YYPARSE_PARAM */
#if defined (__STDC__) || defined (__cplusplus)
int
yyparse (void)
#else
int
yyparse ()
 
#endif
#endif
{
 
  register int yystate;
  register int yyn;
  int yyresult;
  /* Number of tokens to shift before error messages enabled.  */
  int yyerrstatus;
  /* Lookahead token as an internal (translated) token number.  */
  int yytoken = 0;
 
  /* Three stacks and their tools:
     `yyss': related to states,
     `yyvs': related to semantic values,
     `yyls': related to locations.
 
     Refer to the stacks thru separate pointers, to allow yyoverflow
     to reallocate them elsewhere.  */
 
  /* The state stack.  */
  short yyssa[YYINITDEPTH];
  short *yyss = yyssa;
  register short *yyssp;
 
  /* The semantic value stack.  */
  YYSTYPE yyvsa[YYINITDEPTH];
  YYSTYPE *yyvs = yyvsa;
  register YYSTYPE *yyvsp;
 
 
 
#define YYPOPSTACK   (yyvsp--, yyssp--)
 
  YYSIZE_T yystacksize = YYINITDEPTH;
 
  /* The variables used to return semantic value and location from the
     action routines.  */
  YYSTYPE yyval;
 
 
  /* When reducing, the number of symbols on the RHS of the reduced
     rule.  */
  int yylen;
 
  YYDPRINTF ((stderr, "Starting parse\n"));
 
  yystate = 0;
  yyerrstatus = 0;
  yynerrs = 0;
  yychar = YYEMPTY;             /* Cause a token to be read.  */
 
  /* Initialize stack pointers.
     Waste one element of value and location stack
     so that they stay on the same level as the state stack.
     The wasted elements are never initialized.  */
 
  yyssp = yyss;
  yyvsp = yyvs;
 
  goto yysetstate;
 
/*------------------------------------------------------------.
| yynewstate -- Push a new state, which is found in yystate.  |
`------------------------------------------------------------*/
 yynewstate:
  /* In all cases, when you get here, the value and location stacks
     have just been pushed. so pushing a state here evens the stacks.
     */
  yyssp++;
 
 yysetstate:
  *yyssp = yystate;
 
  if (yyss + yystacksize - 1 <= yyssp)
    {
      /* Get the current used size of the three stacks, in elements.  */
      YYSIZE_T yysize = yyssp - yyss + 1;
 
#ifdef yyoverflow
      {
        /* Give user a chance to reallocate the stack. Use copies of
           these so that the &'s don't force the real ones into
           memory.  */
        YYSTYPE *yyvs1 = yyvs;
        short *yyss1 = yyss;
 
 
        /* Each stack pointer address is followed by the size of the
           data in use in that stack, in bytes.  This used to be a
           conditional around just the two extra args, but that might
           be undefined if yyoverflow is a macro.  */
        yyoverflow ("parser stack overflow",
                    &yyss1, yysize * sizeof (*yyssp),
                    &yyvs1, yysize * sizeof (*yyvsp),
 
                    &yystacksize);
 
        yyss = yyss1;
        yyvs = yyvs1;
      }
#else /* no yyoverflow */
# ifndef YYSTACK_RELOCATE
      goto yyoverflowlab;
# else
      /* Extend the stack our own way.  */
      if (YYMAXDEPTH <= yystacksize)
        goto yyoverflowlab;
      yystacksize *= 2;
      if (YYMAXDEPTH < yystacksize)
        yystacksize = YYMAXDEPTH;
 
      {
        short *yyss1 = yyss;
        union yyalloc *yyptr =
          (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
        if (! yyptr)
          goto yyoverflowlab;
        YYSTACK_RELOCATE (yyss);
        YYSTACK_RELOCATE (yyvs);
 
#  undef YYSTACK_RELOCATE
        if (yyss1 != yyssa)
          YYSTACK_FREE (yyss1);
      }
# endif
#endif /* no yyoverflow */
 
      yyssp = yyss + yysize - 1;
      yyvsp = yyvs + yysize - 1;
 
 
      YYDPRINTF ((stderr, "Stack size increased to %lu\n",
                  (unsigned long int) yystacksize));
 
      if (yyss + yystacksize - 1 <= yyssp)
        YYABORT;
    }
 
  YYDPRINTF ((stderr, "Entering state %d\n", yystate));
 
  goto yybackup;
 
/*-----------.
| yybackup.  |
`-----------*/
yybackup:
 
/* Do appropriate processing given the current state.  */
/* Read a lookahead token if we need one and don't already have one.  */
/* yyresume: */
 
  /* First try to decide what to do without reference to lookahead token.  */
 
  yyn = yypact[yystate];
  if (yyn == YYPACT_NINF)
    goto yydefault;
 
  /* Not known => get a lookahead token if don't already have one.  */
 
  /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol.  */
  if (yychar == YYEMPTY)
    {
      YYDPRINTF ((stderr, "Reading a token: "));
      yychar = YYLEX;
    }
 
  if (yychar <= YYEOF)
    {
      yychar = yytoken = YYEOF;
      YYDPRINTF ((stderr, "Now at end of input.\n"));
    }
  else
    {
      yytoken = YYTRANSLATE (yychar);
      YYDSYMPRINTF ("Next token is", yytoken, &yylval, &yylloc);
    }
 
  /* If the proper action on seeing token YYTOKEN is to reduce or to
     detect an error, take that action.  */
  yyn += yytoken;
  if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
    goto yydefault;
  yyn = yytable[yyn];
  if (yyn <= 0)
    {
      if (yyn == 0 || yyn == YYTABLE_NINF)
        goto yyerrlab;
      yyn = -yyn;
      goto yyreduce;
    }
 
  if (yyn == YYFINAL)
    YYACCEPT;
 
  /* Shift the lookahead token.  */
  YYDPRINTF ((stderr, "Shifting token %s, ", yytname[yytoken]));
 
  /* Discard the token being shifted unless it is eof.  */
  if (yychar != YYEOF)
    yychar = YYEMPTY;
 
  *++yyvsp = yylval;
 
 
  /* Count tokens shifted since error; after three, turn off error
     status.  */
  if (yyerrstatus)
    yyerrstatus--;
 
  yystate = yyn;
  goto yynewstate;
 
 
/*-----------------------------------------------------------.
| yydefault -- do the default action for the current state.  |
`-----------------------------------------------------------*/
yydefault:
  yyn = yydefact[yystate];
  if (yyn == 0)
    goto yyerrlab;
  goto yyreduce;
 
 
/*-----------------------------.
| yyreduce -- Do a reduction.  |
`-----------------------------*/
yyreduce:
  /* yyn is the number of a rule to reduce with.  */
  yylen = yyr2[yyn];
 
  /* If YYLEN is nonzero, implement the default value of the action:
     `$$ = $1'.
 
     Otherwise, the following line sets YYVAL to garbage.
     This behavior is undocumented and Bison
     users should not rely upon it.  Assigning to YYVAL
     unconditionally makes the parser a bit smaller, and it avoids a
     GCC warning that YYVAL may be used uninitialized.  */
  yyval = yyvsp[1-yylen];
 
 
  YY_REDUCE_PRINT (yyn);
  switch (yyn)
    {
        case 3:
#line 123 "m68k-parse.y"
    {
                  op->trailing_ampersand = yyvsp[0].trailing_ampersand;
                }
    break;
 
  case 4:
#line 127 "m68k-parse.y"
    {
                  op->trailing_ampersand = yyvsp[0].trailing_ampersand;
                }
    break;
 
  case 5:
#line 135 "m68k-parse.y"
    { yyval.trailing_ampersand = 0; }
    break;
 
  case 6:
#line 137 "m68k-parse.y"
    { yyval.trailing_ampersand = 1; }
    break;
 
  case 7:
#line 144 "m68k-parse.y"
    {
                  op->mode = LSH;
                }
    break;
 
  case 8:
#line 149 "m68k-parse.y"
    {
                  op->mode = RSH;
                }
    break;
 
  case 9:
#line 154 "m68k-parse.y"
    {
                  op->mode = DREG;
                  op->reg = yyvsp[0].reg;
                }
    break;
 
  case 10:
#line 159 "m68k-parse.y"
    {
                  op->mode = AREG;
                  op->reg = yyvsp[0].reg;
                }
    break;
 
  case 11:
#line 164 "m68k-parse.y"
    {
                  op->mode = FPREG;
                  op->reg = yyvsp[0].reg;
                }
    break;
 
  case 12:
#line 169 "m68k-parse.y"
    {
                  op->mode = CONTROL;
                  op->reg = yyvsp[0].reg;
                }
    break;
 
  case 13:
#line 174 "m68k-parse.y"
    {
                  op->mode = CONTROL;
                  op->reg = yyvsp[0].reg;
                }
    break;
 
  case 14:
#line 179 "m68k-parse.y"
    {
                  op->mode = ABSL;
                  op->disp = yyvsp[0].exp;
                }
    break;
 
  case 15:
#line 184 "m68k-parse.y"
    {
                  op->mode = IMMED;
                  op->disp = yyvsp[0].exp;
                }
    break;
 
  case 16:
#line 189 "m68k-parse.y"
    {
                  op->mode = IMMED;
                  op->disp = yyvsp[0].exp;
                }
    break;
 
  case 17:
#line 194 "m68k-parse.y"
    {
                  op->mode = REGLST;
                  op->mask = yyvsp[0].mask;
                }
    break;
 
  case 18:
#line 207 "m68k-parse.y"
    {
                  op->mode = AINDR;
                  op->reg = yyvsp[-1].reg;
                }
    break;
 
  case 19:
#line 212 "m68k-parse.y"
    {
                  op->mode = AINC;
                  op->reg = yyvsp[-2].reg;
                }
    break;
 
  case 20:
#line 217 "m68k-parse.y"
    {
                  op->mode = ADEC;
                  op->reg = yyvsp[-1].reg;
                }
    break;
 
  case 21:
#line 222 "m68k-parse.y"
    {
                  op->reg = yyvsp[-1].reg;
                  op->disp = yyvsp[-3].exp;
                  if ((yyvsp[-1].reg >= ZADDR0 && yyvsp[-1].reg <= ZADDR7)
                      || yyvsp[-1].reg == ZPC)
                    op->mode = BASE;
                  else
                    op->mode = DISP;
                }
    break;
 
  case 22:
#line 232 "m68k-parse.y"
    {
                  op->reg = yyvsp[-3].reg;
                  op->disp = yyvsp[-1].exp;
                  if ((yyvsp[-3].reg >= ZADDR0 && yyvsp[-3].reg <= ZADDR7)
                      || yyvsp[-3].reg == ZPC)
                    op->mode = BASE;
                  else
                    op->mode = DISP;
                }
    break;
 
  case 23:
#line 242 "m68k-parse.y"
    {
                  op->reg = yyvsp[-1].reg;
                  op->disp = yyvsp[-3].exp;
                  if ((yyvsp[-1].reg >= ZADDR0 && yyvsp[-1].reg <= ZADDR7)
                      || yyvsp[-1].reg == ZPC)
                    op->mode = BASE;
                  else
                    op->mode = DISP;
                }
    break;
 
  case 24:
#line 252 "m68k-parse.y"
    {
                  op->mode = DISP;
                  op->reg = yyvsp[-1].reg;
                }
    break;
 
  case 25:
#line 257 "m68k-parse.y"
    {
                  op->mode = BASE;
                  op->reg = yyvsp[-1].reg;
                }
    break;
 
  case 26:
#line 262 "m68k-parse.y"
    {
                  op->mode = BASE;
                  op->reg = yyvsp[-1].reg;
                }
    break;
 
  case 27:
#line 267 "m68k-parse.y"
    {
                  op->mode = BASE;
                  op->reg = yyvsp[-3].reg;
                  op->disp = yyvsp[-5].exp;
                  op->index = yyvsp[-1].indexreg;
                }
    break;
 
  case 28:
#line 274 "m68k-parse.y"
    {
                  if (yyvsp[-3].reg == PC || yyvsp[-3].reg == ZPC)
                    yyerror (_("syntax error"));
                  op->mode = BASE;
                  op->reg = yyvsp[-1].reg;
                  op->disp = yyvsp[-5].exp;
                  op->index.reg = yyvsp[-3].reg;
                  op->index.size = SIZE_UNSPEC;
                  op->index.scale = 1;
                }
    break;
 
  case 29:
#line 285 "m68k-parse.y"
    {
                  op->mode = BASE;
                  op->reg = yyvsp[-1].reg;
                  op->disp = yyvsp[-4].exp;
                  op->index = yyvsp[-2].indexreg;
                }
    break;
 
  case 30:
#line 292 "m68k-parse.y"
    {
                  op->mode = BASE;
                  op->disp = yyvsp[-1].exp;
                  op->index = yyvsp[-3].indexreg;
                }
    break;
 
  case 31:
#line 298 "m68k-parse.y"
    {
                  op->mode = BASE;
                  op->reg = yyvsp[-3].reg;
                  op->disp = yyvsp[-5].exp;
                  op->index = yyvsp[-1].indexreg;
                }
    break;
 
  case 32:
#line 305 "m68k-parse.y"
    {
                  op->mode = BASE;
                  op->reg = yyvsp[-3].reg;
                  op->index = yyvsp[-1].indexreg;
                }
    break;
 
  case 33:
#line 311 "m68k-parse.y"
    {
                  if (yyvsp[-3].reg == PC || yyvsp[-3].reg == ZPC)
                    yyerror (_("syntax error"));
                  op->mode = BASE;
                  op->reg = yyvsp[-1].reg;
                  op->disp = yyvsp[-5].exp;
                  op->index.reg = yyvsp[-3].reg;
                  op->index.size = SIZE_UNSPEC;
                  op->index.scale = 1;
                }
    break;
 
  case 34:
#line 322 "m68k-parse.y"
    {
                  if (yyvsp[-3].reg == PC || yyvsp[-3].reg == ZPC)
                    yyerror (_("syntax error"));
                  op->mode = BASE;
                  op->reg = yyvsp[-1].reg;
                  op->index.reg = yyvsp[-3].reg;
                  op->index.size = SIZE_UNSPEC;
                  op->index.scale = 1;
                }
    break;
 
  case 35:
#line 332 "m68k-parse.y"
    {
                  op->mode = BASE;
                  op->reg = yyvsp[-1].reg;
                  op->disp = yyvsp[-4].exp;
                  op->index = yyvsp[-2].indexreg;
                }
    break;
 
  case 36:
#line 339 "m68k-parse.y"
    {
                  op->mode = BASE;
                  op->reg = yyvsp[-1].reg;
                  op->index = yyvsp[-2].indexreg;
                }
    break;
 
  case 37:
#line 345 "m68k-parse.y"
    {
                  op->mode = POST;
                  op->reg = yyvsp[-5].reg;
                  op->disp = yyvsp[-6].exp;
                  op->index = yyvsp[-2].indexreg;
                  op->odisp = yyvsp[-1].exp;
                }
    break;
 
  case 38:
#line 353 "m68k-parse.y"
    {
                  op->mode = POST;
                  op->reg = yyvsp[-3].reg;
                  op->disp = yyvsp[-4].exp;
                  op->odisp = yyvsp[-1].exp;
                }
    break;
 
  case 39:
#line 360 "m68k-parse.y"
    {
                  op->mode = POST;
                  op->reg = yyvsp[-5].reg;
                  op->index = yyvsp[-2].indexreg;
                  op->odisp = yyvsp[-1].exp;
                }
    break;
 
  case 40:
#line 367 "m68k-parse.y"
    {
                  op->mode = POST;
                  op->reg = yyvsp[-3].reg;
                  op->odisp = yyvsp[-1].exp;
                }
    break;
 
  case 41:
#line 373 "m68k-parse.y"
    {
                  op->mode = PRE;
                  op->reg = yyvsp[-5].reg;
                  op->disp = yyvsp[-7].exp;
                  op->index = yyvsp[-3].indexreg;
                  op->odisp = yyvsp[-1].exp;
                }
    break;
 
  case 42:
#line 381 "m68k-parse.y"
    {
                  op->mode = PRE;
                  op->reg = yyvsp[-5].reg;
                  op->index = yyvsp[-3].indexreg;
                  op->odisp = yyvsp[-1].exp;
                }
    break;
 
  case 43:
#line 388 "m68k-parse.y"
    {
                  if (yyvsp[-5].reg == PC || yyvsp[-5].reg == ZPC)
                    yyerror (_("syntax error"));
                  op->mode = PRE;
                  op->reg = yyvsp[-3].reg;
                  op->disp = yyvsp[-7].exp;
                  op->index.reg = yyvsp[-5].reg;
                  op->index.size = SIZE_UNSPEC;
                  op->index.scale = 1;
                  op->odisp = yyvsp[-1].exp;
                }
    break;
 
  case 44:
#line 400 "m68k-parse.y"
    {
                  if (yyvsp[-5].reg == PC || yyvsp[-5].reg == ZPC)
                    yyerror (_("syntax error"));
                  op->mode = PRE;
                  op->reg = yyvsp[-3].reg;
                  op->index.reg = yyvsp[-5].reg;
                  op->index.size = SIZE_UNSPEC;
                  op->index.scale = 1;
                  op->odisp = yyvsp[-1].exp;
                }
    break;
 
  case 45:
#line 411 "m68k-parse.y"
    {
                  op->mode = PRE;
                  op->reg = yyvsp[-3].reg;
                  op->disp = yyvsp[-5].exp;
                  op->index = yyvsp[-4].indexreg;
                  op->odisp = yyvsp[-1].exp;
                }
    break;
 
  case 46:
#line 424 "m68k-parse.y"
    {
                  /* We use optzapc to avoid a shift/reduce conflict.  */
                  if (yyvsp[-1].reg < ADDR0 || yyvsp[-1].reg > ADDR7)
                    yyerror (_("syntax error"));
                  op->mode = AINDR;
                  op->reg = yyvsp[-1].reg;
                }
    break;
 
  case 47:
#line 432 "m68k-parse.y"
    {
                  /* We use optzapc to avoid a shift/reduce conflict.  */
                  if (yyvsp[-2].reg < ADDR0 || yyvsp[-2].reg > ADDR7)
                    yyerror (_("syntax error"));
                  op->mode = AINC;
                  op->reg = yyvsp[-2].reg;
                }
    break;
 
  case 48:
#line 440 "m68k-parse.y"
    {
                  /* We use optzapc to avoid a shift/reduce conflict.  */
                  if (yyvsp[-2].reg < ADDR0 || yyvsp[-2].reg > ADDR7)
                    yyerror (_("syntax error"));
                  op->mode = ADEC;
                  op->reg = yyvsp[-2].reg;
                }
    break;
 
  case 49:
#line 448 "m68k-parse.y"
    {
                  op->reg = yyvsp[-4].reg;
                  op->disp = yyvsp[-1].exp;
                  if ((yyvsp[-4].reg >= ZADDR0 && yyvsp[-4].reg <= ZADDR7)
                      || yyvsp[-4].reg == ZPC)
                    op->mode = BASE;
                  else
                    op->mode = DISP;
                }
    break;
 
  case 50:
#line 458 "m68k-parse.y"
    {
                  op->mode = BASE;
                  op->reg = yyvsp[-5].reg;
                  op->disp = yyvsp[-2].exp;
                  op->index = yyvsp[-1].indexreg;
                }
    break;
 
  case 51:
#line 465 "m68k-parse.y"
    {
                  op->mode = POST;
                  op->reg = yyvsp[-9].reg;
                  op->disp = yyvsp[-6].exp;
                  op->index = yyvsp[-1].indexreg;
                  op->odisp = yyvsp[-2].exp;
                }
    break;
 
  case 52:
#line 473 "m68k-parse.y"
    {
                  op->mode = POST;
                  op->reg = yyvsp[-8].reg;
                  op->disp = yyvsp[-5].exp;
                  op->odisp = yyvsp[-1].exp;
                }
    break;
 
  case 53:
#line 480 "m68k-parse.y"
    {
                  op->mode = PRE;
                  op->reg = yyvsp[-9].reg;
                  op->disp = yyvsp[-6].exp;
                  op->index = yyvsp[-5].indexreg;
                  op->odisp = yyvsp[-1].exp;
                }
    break;
 
  case 55:
#line 495 "m68k-parse.y"
    {
                  yyval.indexreg.reg = yyvsp[0].reg;
                  yyval.indexreg.size = SIZE_UNSPEC;
                  yyval.indexreg.scale = 1;
                }
    break;
 
  case 57:
#line 509 "m68k-parse.y"
    {
                  yyval.indexreg.reg = yyvsp[0].reg;
                  yyval.indexreg.size = SIZE_UNSPEC;
                  yyval.indexreg.scale = 1;
                }
    break;
 
  case 68:
#line 552 "m68k-parse.y"
    {
                  yyval.reg = ZADDR0;
                }
    break;
 
  case 72:
#line 569 "m68k-parse.y"
    {
                  yyval.reg = ZADDR0;
                }
    break;
 
  case 73:
#line 573 "m68k-parse.y"
    {
                  yyval.reg = yyvsp[0].reg;
                }
    break;
 
  case 74:
#line 582 "m68k-parse.y"
    {
                  yyval.exp.exp.X_op = O_absent;
                  yyval.exp.size = SIZE_UNSPEC;
                }
    break;
 
  case 75:
#line 587 "m68k-parse.y"
    {
                  yyval.exp = yyvsp[0].exp;
                }
    break;
 
  case 76:
#line 596 "m68k-parse.y"
    {
                  yyval.exp.exp.X_op = O_absent;
                  yyval.exp.size = SIZE_UNSPEC;
                }
    break;
 
  case 77:
#line 601 "m68k-parse.y"
    {
                  yyval.exp = yyvsp[-1].exp;
                }
    break;
 
  case 79:
#line 611 "m68k-parse.y"
    {
                  yyval.mask = yyvsp[-2].mask | yyvsp[0].mask;
                }
    break;
 
  case 80:
#line 615 "m68k-parse.y"
    {
                  yyval.mask = (1 << yyvsp[-2].onereg) | yyvsp[0].mask;
                }
    break;
 
  case 81:
#line 627 "m68k-parse.y"
    {
                  yyval.mask = 1 << yyvsp[0].onereg;
                }
    break;
 
  case 83:
#line 632 "m68k-parse.y"
    {
                  yyval.mask = yyvsp[-2].mask | yyvsp[0].mask;
                }
    break;
 
  case 84:
#line 636 "m68k-parse.y"
    {
                  yyval.mask = (1 << yyvsp[-2].onereg) | yyvsp[0].mask;
                }
    break;
 
  case 85:
#line 643 "m68k-parse.y"
    {
                  if (yyvsp[-2].onereg <= yyvsp[0].onereg)
                    yyval.mask = (1 << (yyvsp[0].onereg + 1)) - 1 - ((1 << yyvsp[-2].onereg) - 1);
                  else
                    yyval.mask = (1 << (yyvsp[-2].onereg + 1)) - 1 - ((1 << yyvsp[0].onereg) - 1);
                }
    break;
 
  case 86:
#line 653 "m68k-parse.y"
    {
                  yyval.onereg = yyvsp[0].reg - DATA0;
                }
    break;
 
  case 87:
#line 657 "m68k-parse.y"
    {
                  yyval.onereg = yyvsp[0].reg - ADDR0 + 8;
                }
    break;
 
  case 88:
#line 661 "m68k-parse.y"
    {
                  yyval.onereg = yyvsp[0].reg - FP0 + 16;
                }
    break;
 
  case 89:
#line 665 "m68k-parse.y"
    {
                  if (yyvsp[0].reg == FPI)
                    yyval.onereg = 24;
                  else if (yyvsp[0].reg == FPS)
                    yyval.onereg = 25;
                  else
                    yyval.onereg = 26;
                }
    break;
 
 
    }
 
/* Line 1000 of yacc.c.  */
#line 1872 "m68k-parse.c"
 
  yyvsp -= yylen;
  yyssp -= yylen;
 
 
  YY_STACK_PRINT (yyss, yyssp);
 
  *++yyvsp = yyval;
 
 
  /* Now `shift' the result of the reduction.  Determine what state
     that goes to, based on the state we popped back to and the rule
     number reduced by.  */
 
  yyn = yyr1[yyn];
 
  yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
  if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
    yystate = yytable[yystate];
  else
    yystate = yydefgoto[yyn - YYNTOKENS];
 
  goto yynewstate;
 
 
/*------------------------------------.
| yyerrlab -- here on detecting error |
`------------------------------------*/
yyerrlab:
  /* If not already recovering from an error, report this error.  */
  if (!yyerrstatus)
    {
      ++yynerrs;
#if YYERROR_VERBOSE
      yyn = yypact[yystate];
 
      if (YYPACT_NINF < yyn && yyn < YYLAST)
        {
          YYSIZE_T yysize = 0;
          int yytype = YYTRANSLATE (yychar);
          const char* yyprefix;
          char *yymsg;
          int yyx;
 
          /* Start YYX at -YYN if negative to avoid negative indexes in
             YYCHECK.  */
          int yyxbegin = yyn < 0 ? -yyn : 0;
 
          /* Stay within bounds of both yycheck and yytname.  */
          int yychecklim = YYLAST - yyn;
          int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
          int yycount = 0;
 
          yyprefix = ", expecting ";
          for (yyx = yyxbegin; yyx < yyxend; ++yyx)
            if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
              {
                yysize += yystrlen (yyprefix) + yystrlen (yytname [yyx]);
                yycount += 1;
                if (yycount == 5)
                  {
                    yysize = 0;
                    break;
                  }
              }
          yysize += (sizeof ("syntax error, unexpected ")
                     + yystrlen (yytname[yytype]));
          yymsg = (char *) YYSTACK_ALLOC (yysize);
          if (yymsg != 0)
            {
              char *yyp = yystpcpy (yymsg, "syntax error, unexpected ");
              yyp = yystpcpy (yyp, yytname[yytype]);
 
              if (yycount < 5)
                {
                  yyprefix = ", expecting ";
                  for (yyx = yyxbegin; yyx < yyxend; ++yyx)
                    if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
                      {
                        yyp = yystpcpy (yyp, yyprefix);
                        yyp = yystpcpy (yyp, yytname[yyx]);
                        yyprefix = " or ";
                      }
                }
              yyerror (yymsg);
              YYSTACK_FREE (yymsg);
            }
          else
            yyerror ("syntax error; also virtual memory exhausted");
        }
      else
#endif /* YYERROR_VERBOSE */
        yyerror ("syntax error");
    }
 
 
 
  if (yyerrstatus == 3)
    {
      /* If just tried and failed to reuse lookahead token after an
         error, discard it.  */
 
      if (yychar <= YYEOF)
        {
          /* If at end of input, pop the error token,
             then the rest of the stack, then return failure.  */
          if (yychar == YYEOF)
             for (;;)
               {
                 YYPOPSTACK;
                 if (yyssp == yyss)
                   YYABORT;
                 YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp);
                 yydestruct (yystos[*yyssp], yyvsp);
               }
        }
      else
        {
          YYDSYMPRINTF ("Error: discarding", yytoken, &yylval, &yylloc);
          yydestruct (yytoken, &yylval);
          yychar = YYEMPTY;
 
        }
    }
 
  /* Else will try to reuse lookahead token after shifting the error
     token.  */
  goto yyerrlab1;
 
 
/*---------------------------------------------------.
| yyerrorlab -- error raised explicitly by YYERROR.  |
`---------------------------------------------------*/
yyerrorlab:
 
#ifdef __GNUC__
  /* Pacify GCC when the user code never invokes YYERROR and the label
     yyerrorlab therefore never appears in user code.  */
  if (0)
     goto yyerrorlab;
#endif
 
  yyvsp -= yylen;
  yyssp -= yylen;
  yystate = *yyssp;
  goto yyerrlab1;
 
 
/*-------------------------------------------------------------.
| yyerrlab1 -- common code for both syntax error and YYERROR.  |
`-------------------------------------------------------------*/
yyerrlab1:
  yyerrstatus = 3;      /* Each real token shifted decrements this.  */
 
  for (;;)
    {
      yyn = yypact[yystate];
      if (yyn != YYPACT_NINF)
        {
          yyn += YYTERROR;
          if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
            {
              yyn = yytable[yyn];
              if (0 < yyn)
                break;
            }
        }
 
      /* Pop the current state because it cannot handle the error token.  */
      if (yyssp == yyss)
        YYABORT;
 
      YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp);
      yydestruct (yystos[yystate], yyvsp);
      YYPOPSTACK;
      yystate = *yyssp;
      YY_STACK_PRINT (yyss, yyssp);
    }
 
  if (yyn == YYFINAL)
    YYACCEPT;
 
  YYDPRINTF ((stderr, "Shifting error token, "));
 
  *++yyvsp = yylval;
 
 
  yystate = yyn;
  goto yynewstate;
 
 
/*-------------------------------------.
| yyacceptlab -- YYACCEPT comes here.  |
`-------------------------------------*/
yyacceptlab:
  yyresult = 0;
  goto yyreturn;
 
/*-----------------------------------.
| yyabortlab -- YYABORT comes here.  |
`-----------------------------------*/
yyabortlab:
  yyresult = 1;
  goto yyreturn;
 
#ifndef yyoverflow
/*----------------------------------------------.
| yyoverflowlab -- parser overflow comes here.  |
`----------------------------------------------*/
yyoverflowlab:
  yyerror ("parser stack overflow");
  yyresult = 2;
  /* Fall through.  */
#endif
 
yyreturn:
#ifndef yyoverflow
  if (yyss != yyssa)
    YYSTACK_FREE (yyss);
#endif
  return yyresult;
}
 
 
#line 675 "m68k-parse.y"
 
 
/* The string to parse is stored here, and modified by yylex.  */
 
static char *str;
 
/* The original string pointer.  */
 
static char *strorig;
 
/* If *CCP could be a register, return the register number and advance
   *CCP.  Otherwise don't change *CCP, and return 0.  */
 
static enum m68k_register
m68k_reg_parse (ccp)
     register char **ccp;
{
  char *start = *ccp;
  char c;
  char *p;
  symbolS *symbolp;
 
  if (flag_reg_prefix_optional)
    {
      if (*start == REGISTER_PREFIX)
        start++;
      p = start;
    }
  else
    {
      if (*start != REGISTER_PREFIX)
        return 0;
      p = start + 1;
    }
 
  if (! is_name_beginner (*p))
    return 0;
 
  p++;
  while (is_part_of_name (*p) && *p != '.' && *p != ':' && *p != '*')
    p++;
 
  c = *p;
  *p = 0;
  symbolp = symbol_find (start);
  *p = c;
 
  if (symbolp != NULL && S_GET_SEGMENT (symbolp) == reg_section)
    {
      *ccp = p;
      return S_GET_VALUE (symbolp);
    }
 
  /* In MRI mode, something like foo.bar can be equated to a register
     name.  */
  while (flag_mri && c == '.')
    {
      ++p;
      while (is_part_of_name (*p) && *p != '.' && *p != ':' && *p != '*')
        p++;
      c = *p;
      *p = '\0';
      symbolp = symbol_find (start);
      *p = c;
      if (symbolp != NULL && S_GET_SEGMENT (symbolp) == reg_section)
        {
          *ccp = p;
          return S_GET_VALUE (symbolp);
        }
    }
 
  return 0;
}
 
/* The lexer.  */
 
static int
yylex ()
{
  enum m68k_register reg;
  char *s;
  int parens;
  int c = 0;
  int tail = 0;
  char *hold;
 
  if (*str == ' ')
    ++str;
 
  if (*str == '\0')
    return 0;
 
  /* Various special characters are just returned directly.  */
  switch (*str)
    {
    case '@':
      /* In MRI mode, this can be the start of an octal number.  */
      if (flag_mri)
        {
          if (ISDIGIT (str[1])
              || ((str[1] == '+' || str[1] == '-')
                  && ISDIGIT (str[2])))
            break;
        }
      /* Fall through.  */
    case '#':
    case '&':
    case ',':
    case ')':
    case '/':
    case '[':
    case ']':
    case '<':
    case '>':
      return *str++;
    case '+':
      /* It so happens that a '+' can only appear at the end of an
         operand, or if it is trailed by an '&'(see mac load insn).
         If it appears anywhere else, it must be a unary.  */
      if (str[1] == '\0' || (str[1] == '&' && str[2] == '\0'))
        return *str++;
      break;
    case '-':
      /* A '-' can only appear in -(ar), rn-rn, or ar@-.  If it
         appears anywhere else, it must be a unary minus on an
         expression, unless it it trailed by a '&'(see mac load insn).  */
      if (str[1] == '\0' || (str[1] == '&' && str[2] == '\0'))
        return *str++;
      s = str + 1;
      if (*s == '(')
        ++s;
      if (m68k_reg_parse (&s) != 0)
        return *str++;
      break;
    case '(':
      /* A '(' can only appear in `(reg)', `(expr,...', `([', `@(', or
         `)('.  If it appears anywhere else, it must be starting an
         expression.  */
      if (str[1] == '['
          || (str > strorig
              && (str[-1] == '@'
                  || str[-1] == ')')))
        return *str++;
      s = str + 1;
      if (m68k_reg_parse (&s) != 0)
        return *str++;
      /* Check for the case of '(expr,...' by scanning ahead.  If we
         find a comma outside of balanced parentheses, we return '('.
         If we find an unbalanced right parenthesis, then presumably
         the '(' really starts an expression.  */
      parens = 0;
      for (s = str + 1; *s != '\0'; s++)
        {
          if (*s == '(')
            ++parens;
          else if (*s == ')')
            {
              if (parens == 0)
                break;
              --parens;
            }
          else if (*s == ',' && parens == 0)
            {
              /* A comma can not normally appear in an expression, so
                 this is a case of '(expr,...'.  */
              return *str++;
            }
        }
    }
 
  /* See if it's a register.  */
 
  reg = m68k_reg_parse (&str);
  if (reg != 0)
    {
      int ret;
 
      yylval.reg = reg;
 
      if (reg >= DATA0 && reg <= DATA7)
        ret = DR;
      else if (reg >= ADDR0 && reg <= ADDR7)
        ret = AR;
      else if (reg >= FP0 && reg <= FP7)
        return FPR;
      else if (reg == FPI
               || reg == FPS
               || reg == FPC)
        return FPCR;
      else if (reg == PC)
        return LPC;
      else if (reg >= ZDATA0 && reg <= ZDATA7)
        ret = ZDR;
      else if (reg >= ZADDR0 && reg <= ZADDR7)
        ret = ZAR;
      else if (reg == ZPC)
        return LZPC;
      else
        return CREG;
 
      /* If we get here, we have a data or address register.  We
         must check for a size or scale; if we find one, we must
         return INDEXREG.  */
 
      s = str;
 
      if (*s != '.' && *s != ':' && *s != '*')
        return ret;
 
      yylval.indexreg.reg = reg;
 
      if (*s != '.' && *s != ':')
        yylval.indexreg.size = SIZE_UNSPEC;
      else
        {
          ++s;
          switch (*s)
            {
            case 'w':
            case 'W':
              yylval.indexreg.size = SIZE_WORD;
              ++s;
              break;
            case 'l':
            case 'L':
              yylval.indexreg.size = SIZE_LONG;
              ++s;
              break;
            default:
              yyerror (_("illegal size specification"));
              yylval.indexreg.size = SIZE_UNSPEC;
              break;
            }
        }
 
      yylval.indexreg.scale = 1;
 
      if (*s == '*' || *s == ':')
        {
          expressionS scale;
 
          ++s;
 
          hold = input_line_pointer;
          input_line_pointer = s;
          expression (&scale);
          s = input_line_pointer;
          input_line_pointer = hold;
 
          if (scale.X_op != O_constant)
            yyerror (_("scale specification must resolve to a number"));
          else
            {
              switch (scale.X_add_number)
                {
                case 1:
                case 2:
                case 4:
                case 8:
                  yylval.indexreg.scale = scale.X_add_number;
                  break;
                default:
                  yyerror (_("invalid scale value"));
                  break;
                }
            }
        }
 
      str = s;
 
      return INDEXREG;
    }
 
  /* It must be an expression.  Before we call expression, we need to
     look ahead to see if there is a size specification.  We must do
     that first, because otherwise foo.l will be treated as the symbol
     foo.l, rather than as the symbol foo with a long size
     specification.  The grammar requires that all expressions end at
     the end of the operand, or with ',', '(', ']', ')'.  */
 
  parens = 0;
  for (s = str; *s != '\0'; s++)
    {
      if (*s == '(')
        {
          if (parens == 0
              && s > str
              && (s[-1] == ')' || ISALNUM (s[-1])))
            break;
          ++parens;
        }
      else if (*s == ')')
        {
          if (parens == 0)
            break;
          --parens;
        }
      else if (parens == 0
               && (*s == ',' || *s == ']'))
        break;
    }
 
  yylval.exp.size = SIZE_UNSPEC;
  if (s <= str + 2
      || (s[-2] != '.' && s[-2] != ':'))
    tail = 0;
  else
    {
      switch (s[-1])
        {
        case 's':
        case 'S':
        case 'b':
        case 'B':
          yylval.exp.size = SIZE_BYTE;
          break;
        case 'w':
        case 'W':
          yylval.exp.size = SIZE_WORD;
          break;
        case 'l':
        case 'L':
          yylval.exp.size = SIZE_LONG;
          break;
        default:
          break;
        }
      if (yylval.exp.size != SIZE_UNSPEC)
        tail = 2;
    }
 
#ifdef OBJ_ELF
  {
    /* Look for @PLTPC, etc.  */
    char *cp;
 
    yylval.exp.pic_reloc = pic_none;
    cp = s - tail;
    if (cp - 6 > str && cp[-6] == '@')
      {
        if (strncmp (cp - 6, "@PLTPC", 6) == 0)
          {
            yylval.exp.pic_reloc = pic_plt_pcrel;
            tail += 6;
          }
        else if (strncmp (cp - 6, "@GOTPC", 6) == 0)
          {
            yylval.exp.pic_reloc = pic_got_pcrel;
            tail += 6;
          }
      }
    else if (cp - 4 > str && cp[-4] == '@')
      {
        if (strncmp (cp - 4, "@PLT", 4) == 0)
          {
            yylval.exp.pic_reloc = pic_plt_off;
            tail += 4;
          }
        else if (strncmp (cp - 4, "@GOT", 4) == 0)
          {
            yylval.exp.pic_reloc = pic_got_off;
            tail += 4;
          }
      }
  }
#endif
 
  if (tail != 0)
    {
      c = s[-tail];
      s[-tail] = 0;
    }
 
  hold = input_line_pointer;
  input_line_pointer = str;
  expression (&yylval.exp.exp);
  str = input_line_pointer;
  input_line_pointer = hold;
 
  if (tail != 0)
    {
      s[-tail] = c;
      str = s;
    }
 
  return EXPR;
}
 
/* Parse an m68k operand.  This is the only function which is called
   from outside this file.  */
 
int
m68k_ip_op (s, oparg)
     char *s;
     struct m68k_op *oparg;
{
  memset (oparg, 0, sizeof *oparg);
  oparg->error = NULL;
  oparg->index.reg = ZDATA0;
  oparg->index.scale = 1;
  oparg->disp.exp.X_op = O_absent;
  oparg->odisp.exp.X_op = O_absent;
 
  str = strorig = s;
  op = oparg;
 
  return yyparse ();
}
 
/* The error handler.  */
 
static void
yyerror (s)
     const char *s;
{
  op->error = s;
}
 
 
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[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.18.50/] [gas/] [m68k-parse.c] - Blame information for rev 179

Line No.	Rev	Author	Line
1	38	julius	`/* A Bison parser, made by GNU Bison 1.875c. */`
2
3			`/* Skeleton parser for Yacc-like parsing with Bison,`
4			`Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.`
5
6			`This program is free software; you can redistribute it and/or modify`
7			`it under the terms of the GNU General Public License as published by`
8			`the Free Software Foundation; either version 2, or (at your option)`
9			`any later version.`
10
11			`This program is distributed in the hope that it will be useful,`
12			`but WITHOUT ANY WARRANTY; without even the implied warranty of`
13			`MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the`
14			`GNU General Public License for more details.`
15
16			`You should have received a copy of the GNU General Public License`
17			`along with this program; if not, write to the Free Software`
18			`Foundation, Inc., 59 Temple Place - Suite 330,`
19			`Boston, MA 02111-1307, USA. */`
20
21			`/* As a special exception, when this file is copied by Bison into a`
22			`Bison output file, you may use that output file without restriction.`
23			`This special exception was added by the Free Software Foundation`
24			`in version 1.24 of Bison. */`
25
26			`/* Written by Richard Stallman by simplifying the original so called`
27			``semantic'' parser. */
28
29			`/* All symbols defined below should begin with yy or YY, to avoid`
30			`infringing on user name space. This should be done even for local`
31			`variables, as they might otherwise be expanded by user macros.`
32			`There are some unavoidable exceptions within include files to`
33			`define necessary library symbols; they are noted "INFRINGES ON`
34			`USER NAME SPACE" below. */`
35
36			`/* Identify Bison output. */`
37			`#define YYBISON 1`
38
39			`/* Skeleton name. */`
40			`#define YYSKELETON_NAME "yacc.c"`