| 1 | |
| 2 | # include <stdio.h> |
| 3 | /* manifest constant file for the lex/yacc interface */ |
| 4 | |
| 5 | # define ERROR 1 |
| 6 | # define NAME 2 |
| 7 | # define STRING 3 |
| 8 | # define ICON 4 |
| 9 | # define FCON 5 |
| 10 | # define PLUS 6 |
| 11 | # define MINUS 8 |
| 12 | # define MUL 11 |
| 13 | # define AND 14 |
| 14 | # define OR 17 |
| 15 | # define ER 19 |
| 16 | # define QUEST 21 |
| 17 | # define COLON 22 |
| 18 | # define ANDAND 23 |
| 19 | # define OROR 24 |
| 20 | |
| 21 | /* special interfaces for yacc alone */ |
| 22 | /* These serve as abbreviations of 2 or more ops: |
| 23 | ASOP =, = ops |
| 24 | RELOP LE,LT,GE,GT |
| 25 | EQUOP EQ,NE |
| 26 | DIVOP DIV,MOD |
| 27 | SHIFTOP LS,RS |
| 28 | ICOP ICR,DECR |
| 29 | UNOP NOT,COMPL |
| 30 | STROP DOT,STREF |
| 31 | |
| 32 | */ |
| 33 | # define ASOP 25 |
| 34 | # define RELOP 26 |
| 35 | # define EQUOP 27 |
| 36 | # define DIVOP 28 |
| 37 | # define SHIFTOP 29 |
| 38 | # define INCOP 30 |
| 39 | # define UNOP 31 |
| 40 | # define STROP 32 |
| 41 | |
| 42 | /* reserved words, etc */ |
| 43 | # define TYPE 33 |
| 44 | # define CLASS 34 |
| 45 | # define STRUCT 35 |
| 46 | # define RETURN 36 |
| 47 | # define GOTO 37 |
| 48 | # define IF 38 |
| 49 | # define ELSE 39 |
| 50 | # define SWITCH 40 |
| 51 | # define BREAK 41 |
| 52 | # define CONTINUE 42 |
| 53 | # define WHILE 43 |
| 54 | # define DO 44 |
| 55 | # define FOR 45 |
| 56 | # define DEFAULT 46 |
| 57 | # define CASE 47 |
| 58 | # define SIZEOF 48 |
| 59 | # define ENUM 49 |
| 60 | |
| 61 | |
| 62 | /* little symbols, etc. */ |
| 63 | /* namely, |
| 64 | |
| 65 | LP ( |
| 66 | RP ) |
| 67 | |
| 68 | LC { |
| 69 | RC } |
| 70 | |
| 71 | LB [ |
| 72 | RB ] |
| 73 | |
| 74 | CM , |
| 75 | SM ; |
| 76 | |
| 77 | */ |
| 78 | |
| 79 | # define LP 50 |
| 80 | # define RP 51 |
| 81 | # define LC 52 |
| 82 | # define RC 53 |
| 83 | # define LB 54 |
| 84 | # define RB 55 |
| 85 | # define CM 56 |
| 86 | # define SM 57 |
| 87 | # define ASSIGN 58 |
| 88 | |
| 89 | /* END OF YACC */ |
| 90 | |
| 91 | /* left over tree building operators */ |
| 92 | # define COMOP 59 |
| 93 | # define DIV 60 |
| 94 | # define MOD 62 |
| 95 | # define LS 64 |
| 96 | # define RS 66 |
| 97 | # define DOT 68 |
| 98 | # define STREF 69 |
| 99 | # define CALL 70 |
| 100 | # define FORTCALL 73 |
| 101 | # define NOT 76 |
| 102 | # define COMPL 77 |
| 103 | # define INCR 78 |
| 104 | # define DECR 79 |
| 105 | # define EQ 80 |
| 106 | # define NE 81 |
| 107 | # define LE 82 |
| 108 | # define LT 83 |
| 109 | # define GE 84 |
| 110 | # define GT 85 |
| 111 | # define ULE 86 |
| 112 | # define ULT 87 |
| 113 | # define UGE 88 |
| 114 | # define UGT 89 |
| 115 | # define SETBIT 90 |
| 116 | # define TESTBIT 91 |
| 117 | # define RESETBIT 92 |
| 118 | # define ARS 93 |
| 119 | # define REG 94 |
| 120 | # define OREG 95 |
| 121 | # define CCODES 96 |
| 122 | # define FREE 97 |
| 123 | # define STASG 98 |
| 124 | # define STARG 99 |
| 125 | # define STCALL 100 |
| 126 | |
| 127 | /* some conversion operators */ |
| 128 | # define FLD 103 |
| 129 | # define SCONV 104 |
| 130 | # define PCONV 105 |
| 131 | # define PMCONV 106 |
| 132 | # define PVCONV 107 |
| 133 | |
| 134 | /* special node operators, used for special contexts */ |
| 135 | # define FORCE 108 |
| 136 | # define CBRANCH 109 |
| 137 | # define INIT 110 |
| 138 | # define CAST 111 |
| 139 | |
| 140 | /* node types */ |
| 141 | # define LTYPE 02 |
| 142 | # define UTYPE 04 |
| 143 | # define BITYPE 010 |
| 144 | |
| 145 | /* DSIZE is the size of the dope array */ |
| 146 | # define DSIZE CAST+1 |
| 147 | |
| 148 | /* type names, used in symbol table building */ |
| 149 | # define TNULL PTR /* pointer to UNDEF */ |
| 150 | # define UNDEF 0 |
| 151 | # define FARG 1 |
| 152 | # define CHAR 2 |
| 153 | # define SHORT 3 |
| 154 | # define INT 4 |
| 155 | # define LONG 5 |
| 156 | # define FLOAT 6 |
| 157 | # define DOUBLE 7 |
| 158 | # define STRTY 8 |
| 159 | # define UNIONTY 9 |
| 160 | # define ENUMTY 10 |
| 161 | # define MOETY 11 |
| 162 | # define UCHAR 12 |
| 163 | # define USHORT 13 |
| 164 | # define UNSIGNED 14 |
| 165 | # define ULONG 15 |
| 166 | |
| 167 | # define ASG 1+ |
| 168 | # define UNARY 2+ |
| 169 | # define NOASG (-1)+ |
| 170 | # define NOUNARY (-2)+ |
| 171 | |
| 172 | /* various flags */ |
| 173 | # define NOLAB (-1) |
| 174 | |
| 175 | /* type modifiers */ |
| 176 | |
| 177 | # define PTR 020 |
| 178 | # define FTN 040 |
| 179 | # define ARY 060 |
| 180 | |
| 181 | /* type packing constants */ |
| 182 | |
| 183 | # define TMASK 060 |
| 184 | # define TMASK1 0300 |
| 185 | # define TMASK2 0360 |
| 186 | # define BTMASK 017 |
| 187 | # define BTSHIFT 4 |
| 188 | # define TSHIFT 2 |
| 189 | |
| 190 | /* macros */ |
| 191 | |
| 192 | # define MODTYPE(x,y) x = (x&(~BTMASK))|y /* set basic type of x to y */ |
| 193 | # define BTYPE(x) (x&BTMASK) /* basic type of x */ |
| 194 | # define ISUNSIGNED(x) ((x)<=ULONG&&(x)>=UCHAR) |
| 195 | # define UNSIGNABLE(x) ((x)<=LONG&&(x)>=CHAR) |
| 196 | # define ENUNSIGN(x) ((x)+(UNSIGNED-INT)) |
| 197 | # define DEUNSIGN(x) ((x)+(INT-UNSIGNED)) |
| 198 | # define ISPTR(x) ((x&TMASK)==PTR) |
| 199 | # define ISFTN(x) ((x&TMASK)==FTN) /* is x a function type */ |
| 200 | # define ISARY(x) ((x&TMASK)==ARY) /* is x an array type */ |
| 201 | # define INCREF(x) (((x&~BTMASK)<<TSHIFT)|PTR|(x&BTMASK)) |
| 202 | # define DECREF(x) (((x>>TSHIFT)&~BTMASK)|(x&BTMASK)) |
| 203 | # define SETOFF(x,y) if( x%y != 0 ) x = ( (x/y + 1) * y) |
| 204 | /* advance x to a multiple of y */ |
| 205 | # define NOFIT(x,y,z) ( (x%z + y) > z ) |
| 206 | /* can y bits be added to x without overflowing z */ |
| 207 | /* pack and unpack field descriptors (size and offset) */ |
| 208 | # define PKFIELD(s,o) ((o<<6)|s) |
| 209 | # define UPKFSZ(v) (v&077) |
| 210 | # define UPKFOFF(v) (v>>6) |
| 211 | |
| 212 | /* operator information */ |
| 213 | |
| 214 | # define TYFLG 016 |
| 215 | # define ASGFLG 01 |
| 216 | # define LOGFLG 020 |
| 217 | |
| 218 | # define SIMPFLG 040 |
| 219 | # define COMMFLG 0100 |
| 220 | # define DIVFLG 0200 |
| 221 | # define FLOFLG 0400 |
| 222 | # define LTYFLG 01000 |
| 223 | # define CALLFLG 02000 |
| 224 | # define MULFLG 04000 |
| 225 | # define SHFFLG 010000 |
| 226 | # define ASGOPFLG 020000 |
| 227 | |
| 228 | # define SPFLG 040000 |
| 229 | |
| 230 | #define optype(o) (dope[o]&TYFLG) |
| 231 | #define asgop(o) (dope[o]&ASGFLG) |
| 232 | #define logop(o) (dope[o]&LOGFLG) |
| 233 | #define callop(o) (dope[o]&CALLFLG) |
| 234 | |
| 235 | /* table sizes */ |
| 236 | |
| 237 | # define BCSZ 100 /* size of the table to save break and continue labels */ |
| 238 | # define SYMTSZ 650 /* size of the symbol table(originally 450) */ |
| 239 | # define DIMTABSZ 1000 /* size of the dimension/size table (was 750) */ |
| 240 | # define PARAMSZ 100 /* size of the parameter stack */ |
| 241 | # ifndef FORT |
| 242 | # define TREESZ 350 /* space for building parse tree */ |
| 243 | # else |
| 244 | # define TREESZ 1000 |
| 245 | # endif |
| 246 | # define SWITSZ 250 /* size of switch table */ |
| 247 | |
| 248 | # define NCHNAM 8 /* number of characters in a name */ |
| 249 | |
| 250 | /* common defined variables */ |
| 251 | |
| 252 | extern int nerrors; /* number of errors seen so far */ |
| 253 | |
| 254 | typedef union ndu NODE; |
| 255 | typedef unsigned int TWORD; |
| 256 | extern NODE *NIL; /* a pointer which will always have 0 in it */ |
| 257 | extern int dope[]; /* a vector containing operator information */ |
| 258 | extern char *opst[]; /* a vector containing names for ops */ |
| 259 | |
| 260 | # ifdef ONEPASS |
| 261 | /* in one-pass operation, define the tree nodes */ |
| 262 | |
| 263 | union ndu { |
| 264 | |
| 265 | struct { |
| 266 | int op; |
| 267 | int rall; |
| 268 | TWORD type; |
| 269 | int su; |
| 270 | char name[NCHNAM]; |
| 271 | NODE *left; |
| 272 | NODE *right; |
| 273 | }; |
| 274 | |
| 275 | struct { |
| 276 | int op; |
| 277 | int rall; |
| 278 | TWORD type; |
| 279 | int su; |
| 280 | char name[NCHNAM]; |
| 281 | CONSZ lval; |
| 282 | int rval; |
| 283 | }; |
| 284 | |
| 285 | struct { |
| 286 | int op, rall; |
| 287 | TWORD type; |
| 288 | int su; |
| 289 | int label; /* for use with branching */ |
| 290 | }; |
| 291 | |
| 292 | struct { |
| 293 | int op, rall; |
| 294 | TWORD type; |
| 295 | int su; |
| 296 | int stsize; /* sizes of structure objects */ |
| 297 | int stalign; /* alignment of structure objects */ |
| 298 | }; |
| 299 | |
| 300 | struct { |
| 301 | int op; |
| 302 | int cdim; |
| 303 | TWORD type; |
| 304 | int csiz; |
| 305 | }; |
| 306 | |
| 307 | struct { |
| 308 | /* this structure is used when a floating point constant |
| 309 | is being computed */ |
| 310 | int op; |
| 311 | int cdim; |
| 312 | TWORD type; |
| 313 | int csiz; |
| 314 | double dval; |
| 315 | }; |
| 316 | |
| 317 | }; |
| 318 | # endif |