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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 { DREG = 258, CREG = 259, GREG = 260, IMMED = 261, ADDR = 262, INSN = 263, NUM = 264, ID = 265, NL = 266, PNUM = 267 }; #endif #define DREG 258 #define CREG 259 #define GREG 260 #define IMMED 261 #define ADDR 262 #define INSN 263 #define NUM 264 #define ID 265 #define NL 266 #define PNUM 267 /* Copy the first part of user declarations. */ #line 21 "itbl-parse.y" /* Yacc grammar for instruction table entries. ======================================================================= Original Instruction table specification document: MIPS Coprocessor Table Specification ==================================== This document describes the format of the MIPS coprocessor table. The table specifies a list of valid functions, data registers and control registers that can be used in coprocessor instructions. This list, together with the coprocessor instruction classes listed below, specifies the complete list of coprocessor instructions that will be recognized and assembled by the GNU assembler. In effect, this makes the GNU assembler table-driven, where the table is specified by the programmer. The table is an ordinary text file that the GNU assembler reads when it starts. Using the information in the table, the assembler generates an internal list of valid coprocessor registers and functions. The assembler uses this internal list in addition to the standard MIPS registers and instructions which are built-in to the assembler during code generation. To specify the coprocessor table when invoking the GNU assembler, use the command line option "--itbl file", where file is the complete name of the table, including path and extension. Examples: gas -t cop.tbl test.s -o test.o gas -t /usr/local/lib/cop.tbl test.s -o test.o gas --itbl d:\gnu\data\cop.tbl test.s -o test.o Only one table may be supplied during a single invocation of the assembler. Instruction classes =================== Below is a list of the valid coprocessor instruction classes for any given coprocessor "z". These instructions are already recognized by the assembler, and are listed here only for reference. Class format instructions ------------------------------------------------- Class1: op base rt offset LWCz rt,offset (base) SWCz rt,offset (base) Class2: COPz sub rt rd 0 MTCz rt,rd MFCz rt,rd CTCz rt,rd CFCz rt,rd Class3: COPz CO cofun COPz cofun Class4: COPz BC br offset BCzT offset BCzF offset Class5: COPz sub rt rd 0 DMFCz rt,rd DMTCz rt,rd Class6: op base rt offset LDCz rt,offset (base) SDCz rt,offset (base) Class7: COPz BC br offset BCzTL offset BCzFL offset The coprocessor table defines coprocessor-specific registers that can be used with all of the above classes of instructions, where appropriate. It also defines additional coprocessor-specific functions for Class3 (COPz cofun) instructions, Thus, the table allows the programmer to use convenient mnemonics and operands for these functions, instead of the COPz mmenmonic and cofun operand. The names of the MIPS general registers and their aliases are defined by the assembler and will be recognized as valid register names by the assembler when used (where allowed) in coprocessor instructions. However, the names and values of all coprocessor data and control register mnemonics must be specified in the coprocessor table. Table Grammar ============= Here is the grammar for the coprocessor table: table -> entry* entry -> [z entrydef] [comment] '\n' entrydef -> type name val entrydef -> 'insn' name val funcdef ; type of entry (instruction) z -> 'p'['0'..'3'] ; processor number type -> ['dreg' | 'creg' | 'greg' ] ; type of entry (register) ; 'dreg', 'creg' or 'greg' specifies a data, control, or general ; register mnemonic, respectively name -> [ltr|dec]* ; mnemonic of register/function val -> [dec|hex] ; register/function number (integer constant) funcdef -> frange flags fields ; bitfield range for opcode ; list of fields' formats fields -> field* field -> [','] ftype frange flags flags -> ['*' flagexpr] flagexpr -> '[' flagexpr ']' flagexpr -> val '|' flagexpr ftype -> [ type | 'immed' | 'addr' ] ; 'immed' specifies an immediate value; see grammar for "val" above ; 'addr' specifies a C identifier; name of symbol to be resolved at ; link time frange -> ':' val '-' val ; starting to ending bit positions, where ; where 0 is least significant bit frange -> (null) ; default range of 31-0 will be assumed comment -> [';'|'#'] [char]* char -> any printable character ltr -> ['a'..'z'|'A'..'Z'] dec -> ['0'..'9']* ; value in decimal hex -> '0x'['0'..'9' | 'a'..'f' | 'A'..'F']* ; value in hexadecimal Examples ======== Example 1: The table: p1 dreg d1 1 ; data register "d1" for COP1 has value 1 p1 creg c3 3 ; ctrl register "c3" for COP1 has value 3 p3 func fill 0x1f:24-20 ; function "fill" for COP3 has value 31 and ; no fields will allow the assembler to accept the following coprocessor instructions: LWC1 d1,0x100 ($2) fill Here, the general purpose register "$2", and instruction "LWC1", are standard mnemonics built-in to the MIPS assembler. Example 2: The table: p3 dreg d3 3 ; data register "d3" for COP3 has value 3 p3 creg c2 22 ; control register "c2" for COP3 has value 22 p3 func fee 0x1f:24-20 dreg:17-13 creg:12-8 immed:7-0 ; function "fee" for COP3 has value 31, and 3 fields ; consisting of a data register, a control register, ; and an immediate value. will allow the assembler to accept the following coprocessor instruction: fee d3,c2,0x1 and will emit the object code: 31-26 25 24-20 19-18 17-13 12-8 7-0 COPz CO fun dreg creg immed 010011 1 11111 00 00011 10110 00000001 0x4ff07601 Example 3: The table: p3 dreg d3 3 ; data register "d3" for COP3 has value 3 p3 creg c2 22 ; control register "c2" for COP3 has value 22 p3 func fuu 0x01f00001 dreg:17-13 creg:12-8 will allow the assembler to accept the following coprocessor instruction: fuu d3,c2 and will emit the object code: 31-26 25 24-20 19-18 17-13 12-8 7-0 COPz CO fun dreg creg 010011 1 11111 00 00011 10110 00000001 0x4ff07601 In this way, the programmer can force arbitrary bits of an instruction to have predefined values. ======================================================================= Additional notes: Encoding of ranges: To handle more than one bit position range within an instruction, use 0s to mask out the ranges which don't apply. May decide to modify the syntax to allow commas separate multiple ranges within an instruction (range','range). Changes in grammar: The number of parms argument to the function entry was deleted from the original format such that we now count the fields. ---- FIXME! should really change lexical analyzer to recognize 'dreg' etc. in context sensitive way. Currently function names or mnemonics may be incorrectly parsed as keywords FIXME! hex is ambiguous with any digit */ #include "as.h" #include "itbl-lex.h" #include "itbl-ops.h" /* #define DEBUG */ #ifdef DEBUG #ifndef DBG_LVL #define DBG_LVL 1 #endif #else #define DBG_LVL 0 #endif #if DBG_LVL >= 1 #define DBG(x) printf x #else #define DBG(x) #endif #if DBG_LVL >= 2 #define DBGL2(x) printf x #else #define DBGL2(x) #endif static int sbit, ebit; static struct itbl_entry *insn=0; static int yyerror (const char *); /* 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 282 "itbl-parse.y" typedef union YYSTYPE { char *str; int num; int processor; unsigned long val; } YYSTYPE; /* Line 191 of yacc.c. */ #line 367 "itbl-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 379 "itbl-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 9 /* YYLAST -- Last index in YYTABLE. */ #define YYLAST 46 /* YYNTOKENS -- Number of terminals. */ #define YYNTOKENS 20 /* YYNNTS -- Number of nonterminals. */ #define YYNNTS 15 /* YYNRULES -- Number of rules. */ #define YYNRULES 29 /* YYNRULES -- Number of states. */ #define YYNSTATES 51 /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */ #define YYUNDEFTOK 2 #define YYMAXUTOK 267 #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, 2, 2, 17, 2, 13, 19, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 18, 2, 2, 2, 2, 2, 2, 2, 2, 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, 2, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 }; #if YYDEBUG /* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in YYRHS. */ static const unsigned char yyprhs[] = { 0, 0, 3, 5, 8, 9, 15, 16, 26, 28, 31, 35, 38, 39, 41, 43, 45, 49, 53, 57, 59, 62, 63, 68, 69, 71, 73, 75, 77, 79 }; /* YYRHS -- A `-1'-separated list of the rules' RHS. */ static const yysigned_char yyrhs[] = { 21, 0, -1, 22, -1, 23, 22, -1, -1, 31, 32, 33, 34, 11, -1, -1, 31, 8, 33, 34, 30, 29, 24, 25, 11, -1, 11, -1, 1, 11, -1, 13, 27, 25, -1, 27, 25, -1, -1, 32, -1, 7, -1, 6, -1, 26, 30, 29, -1, 9, 14, 28, -1, 15, 28, 16, -1, 9, -1, 17, 28, -1, -1, 18, 9, 19, 9, -1, -1, 12, -1, 3, -1, 4, -1, 5, -1, 10, -1, 9, -1 }; /* YYRLINE[YYN] -- source line where rule number YYN was defined. */ static const unsigned short yyrline[] = { 0, 299, 299, 303, 304, 308, 315, 314, 323, 324, 328, 329, 330, 334, 339, 344, 352, 361, 365, 369, 376, 382, 388, 395, 402, 410, 415, 420, 428, 444 }; #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", "$undefined", "DREG", "CREG", "GREG", "IMMED", "ADDR", "INSN", "NUM", "ID", "NL", "PNUM", "','", "'|'", "'['", "']'", "'*'", "':'", "'-'", "$accept", "insntbl", "entrys", "entry", "@1", "fieldspecs", "ftype", "fieldspec", "flagexpr", "flags", "range", "pnum", "regtype", "name", "value", 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, 44, 124, 91, 93, 42, 58, 45 }; # endif /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */ static const unsigned char yyr1[] = { 0, 20, 21, 22, 22, 23, 24, 23, 23, 23, 25, 25, 25, 26, 26, 26, 27, 28, 28, 28, 29, 29, 30, 30, 31, 32, 32, 32, 33, 34 }; /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */ static const unsigned char yyr2[] = { 0, 2, 1, 2, 0, 5, 0, 9, 1, 2, 3, 2, 0, 1, 1, 1, 3, 3, 3, 1, 2, 0, 4, 0, 1, 1, 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[] = { 0, 0, 8, 24, 0, 2, 0, 0, 9, 1, 3, 25, 26, 27, 0, 0, 28, 0, 0, 29, 23, 0, 0, 21, 5, 0, 0, 6, 0, 19, 0, 20, 12, 22, 0, 0, 15, 14, 0, 0, 23, 12, 13, 17, 18, 12, 7, 21, 11, 10, 16 }; /* YYDEFGOTO[NTERM-NUM]. */ static const yysigned_char yydefgoto[] = { -1, 4, 5, 6, 32, 39, 40, 41, 31, 27, 23, 7, 42, 17, 20 }; /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing STATE-NUM. */ #define YYPACT_NINF -16 static const yysigned_char yypact[] = { 0, -9, -16, -16, 10, -16, 0, 12, -16, -16, -16, -16, -16, -16, 3, 3, -16, 9, 9, -16, 11, 8, 19, 15, -16, 14, -6, -16, 25, 21, -6, -16, 1, -16, -6, 20, -16, -16, 18, 26, 11, 1, -16, -16, -16, 1, -16, 15, -16, -16, -16 }; /* YYPGOTO[NTERM-NUM]. */ static const yysigned_char yypgoto[] = { -16, -16, 32, -16, -16, -15, -16, 2, -3, -8, 4, -16, 34, 27, 28 }; /* 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 -5 static const yysigned_char yytable[] = { -4, 1, 8, 29, 11, 12, 13, 36, 37, 30, 9, 2, 3, 16, 38, 11, 12, 13, 19, 24, 14, 11, 12, 13, 36, 37, 48, 35, 25, 22, 49, 43, 26, 28, 33, 34, 44, 46, 10, 50, 45, 15, 18, 0, 47, 0, 21 }; static const yysigned_char yycheck[] = { 0, 1, 11, 9, 3, 4, 5, 6, 7, 15, 0, 11, 12, 10, 13, 3, 4, 5, 9, 11, 8, 3, 4, 5, 6, 7, 41, 30, 9, 18, 45, 34, 17, 19, 9, 14, 16, 11, 6, 47, 38, 7, 15, -1, 40, -1, 18 }; /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing symbol of state STATE-NUM. */ static const unsigned char yystos[] = { 0, 1, 11, 12, 21, 22, 23, 31, 11, 0, 22, 3, 4, 5, 8, 32, 10, 33, 33, 9, 34, 34, 18, 30, 11, 9, 17, 29, 19, 9, 15, 28, 24, 9, 14, 28, 6, 7, 13, 25, 26, 27, 32, 28, 16, 27, 11, 30, 25, 25, 29 }; #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 5: #line 309 "itbl-parse.y" { DBG (("line %d: entry pnum=%d type=%d name=%s value=x%x\n", insntbl_line, yyvsp[-4].num, yyvsp[-3].num, yyvsp[-2].str, yyvsp[-1].val)); itbl_add_reg (yyvsp[-4].num, yyvsp[-3].num, yyvsp[-2].str, yyvsp[-1].val); } break; case 6: #line 315 "itbl-parse.y" { DBG (("line %d: entry pnum=%d type=INSN name=%s value=x%x", insntbl_line, yyvsp[-5].num, yyvsp[-3].str, yyvsp[-2].val)); DBG ((" sbit=%d ebit=%d flags=0x%x\n", sbit, ebit, yyvsp[0].val)); insn=itbl_add_insn (yyvsp[-5].num, yyvsp[-3].str, yyvsp[-2].val, sbit, ebit, yyvsp[0].val); } break; case 7: #line 322 "itbl-parse.y" {} break; case 13: #line 335 "itbl-parse.y" { DBGL2 (("ftype\n")); yyval.num = yyvsp[0].num; } break; case 14: #line 340 "itbl-parse.y" { DBGL2 (("addr\n")); yyval.num = ADDR; } break; case 15: #line 345 "itbl-parse.y" { DBGL2 (("immed\n")); yyval.num = IMMED; } break; case 16: #line 353 "itbl-parse.y" { DBG (("line %d: field type=%d sbit=%d ebit=%d, flags=0x%x\n", insntbl_line, yyvsp[-2].num, sbit, ebit, yyvsp[0].val)); itbl_add_operand (insn, yyvsp[-2].num, sbit, ebit, yyvsp[0].val); } break; case 17: #line 362 "itbl-parse.y" { yyval.val = yyvsp[-2].num | yyvsp[0].val; } break; case 18: #line 366 "itbl-parse.y" { yyval.val = yyvsp[-1].val; } break; case 19: #line 370 "itbl-parse.y" { yyval.val = yyvsp[0].num; } break; case 20: #line 377 "itbl-parse.y" { DBGL2 (("flags=%d\n", yyvsp[0].val)); yyval.val = yyvsp[0].val; } break; case 21: #line 382 "itbl-parse.y" { yyval.val = 0; } break; case 22: #line 389 "itbl-parse.y" { DBGL2 (("range %d %d\n", yyvsp[-2].num, yyvsp[0].num)); sbit = yyvsp[-2].num; ebit = yyvsp[0].num; } break; case 23: #line 395 "itbl-parse.y" { sbit = 31; ebit = 0; } break; case 24: #line 403 "itbl-parse.y" { DBGL2 (("pnum=%d\n",yyvsp[0].num)); yyval.num = yyvsp[0].num; } break; case 25: #line 411 "itbl-parse.y" { DBGL2 (("dreg\n")); yyval.num = DREG; } break; case 26: #line 416 "itbl-parse.y" { DBGL2 (("creg\n")); yyval.num = CREG; } break; case 27: #line 421 "itbl-parse.y" { DBGL2 (("greg\n")); yyval.num = GREG; } break; case 28: #line 429 "itbl-parse.y" { DBGL2 (("name=%s\n",yyvsp[0].str)); yyval.str = yyvsp[0].str; } break; case 29: #line 445 "itbl-parse.y" { DBGL2 (("val=x%x\n",yyvsp[0].num)); yyval.val = yyvsp[0].num; } break; } /* Line 1000 of yacc.c. */ #line 1451 "itbl-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 450 "itbl-parse.y" static int yyerror (msg) const char *msg; { printf ("line %d: %s\n", insntbl_line, msg); return 0; }
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