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Annotation of 3BSD/cmd/mip/mfile1, revision 1.1

1.1     ! root        1: 
        !             2: # include "macdefs"
        !             3: # include "manifest"
        !             4: 
        !             5: /*     storage classes  */
        !             6: # define SNULL 0
        !             7: # define AUTO 1
        !             8: # define EXTERN 2
        !             9: # define STATIC 3
        !            10: # define REGISTER 4
        !            11: # define EXTDEF 5
        !            12: # define LABEL 6
        !            13: # define ULABEL 7
        !            14: # define MOS 8
        !            15: # define PARAM 9
        !            16: # define STNAME 10
        !            17: # define MOU 11
        !            18: # define UNAME 12
        !            19: # define TYPEDEF 13
        !            20: # define FORTRAN 14
        !            21: # define ENAME 15
        !            22: # define MOE 16
        !            23: # define UFORTRAN 17
        !            24: # define USTATIC 18
        !            25:        /* field size is ORed in */
        !            26: # define FIELD 0100
        !            27: # define FLDSIZ 077
        !            28: extern char *scnames();
        !            29: 
        !            30: /*     location counters */
        !            31: # define PROG 0
        !            32: # define DATA 1
        !            33: # define ADATA 2
        !            34: # define STRNG 3
        !            35: # define ISTRNG 4
        !            36: # define STAB 5
        !            37: 
        !            38: 
        !            39: /* symbol table flags */
        !            40: # define SMOS 01
        !            41: # define SHIDDEN 02
        !            42: # define SHIDES 04
        !            43: # define SSET 010
        !            44: # define SREF 020
        !            45: 
        !            46: # define FIXDEF(p) outstab(p)
        !            47: # ifndef FIXDEF
        !            48: # define FIXDEF(p)
        !            49: #endif
        !            50: 
        !            51:        /* alignment of initialized quantities */
        !            52: # ifndef AL_INIT
        !            53: #      define  AL_INIT ALINT
        !            54: # endif
        !            55: 
        !            56: struct symtab {
        !            57:        char sname[NCHNAM];
        !            58:        TWORD stype;  /* type word */
        !            59: 
        !            60:        char sclass;  /* storage class */
        !            61:        char slevel;  /* scope level */
        !            62:        char sflags;  /* flags for set, use, hidden, mos, etc. */
        !            63:        int offset;  /* offset or value */
        !            64:        short dimoff; /* offset into the dimension table */
        !            65:        short sizoff; /* offset into the size table */
        !            66:        short suse;  /* line number of last use of the variable */
        !            67:        };
        !            68: 
        !            69: 
        !            70: # ifdef ONEPASS
        !            71: /* NOPREF must be defined for use in first pass tree machine */
        !            72: # define NOPREF 020000  /* no preference for register assignment */
        !            73: #else
        !            74: 
        !            75: union ndu {
        !            76:        struct {
        !            77:                int op;
        !            78:                TWORD type;
        !            79:                int cdim, csiz;
        !            80:                NODE *left;
        !            81:                NODE * right;
        !            82:                };
        !            83:        
        !            84:        struct {
        !            85:                /* this structure is the same as above,
        !            86:                   but is used when a value, rather than
        !            87:                   address, is kept in +left */
        !            88:                int op;
        !            89:                TWORD type;
        !            90:                int cdim, csiz;
        !            91:                CONSZ lval;
        !            92:                int rval;
        !            93:                };
        !            94:        
        !            95:        struct {
        !            96:                /* this structure is used when a floating point constant
        !            97:                   is being computed */
        !            98:                int op;
        !            99:                TWORD type;
        !           100:                int cdim, csiz;
        !           101:                double dval;
        !           102:                };
        !           103: 
        !           104:        };
        !           105: # endif
        !           106: 
        !           107: struct sw {
        !           108:        CONSZ sval;
        !           109:        int slab;
        !           110:        };
        !           111: 
        !           112: extern struct sw swtab[];
        !           113: extern struct sw *swp;
        !           114: extern int swx;
        !           115: 
        !           116: extern int ftnno;
        !           117: extern int blevel;
        !           118: extern int instruct, stwart;
        !           119: 
        !           120: extern int lineno, nerrors;
        !           121: typedef union {
        !           122:        int intval;
        !           123:        NODE * nodep;
        !           124:        } YYSTYPE;
        !           125: extern YYSTYPE yylval;
        !           126: 
        !           127: extern CONSZ lastcon;
        !           128: extern double dcon;
        !           129: 
        !           130: extern char ftitle[];
        !           131: extern char ititle[];
        !           132: extern struct symtab stab[];
        !           133: extern int curftn;
        !           134: extern int curclass;
        !           135: extern int curdim;
        !           136: extern int dimtab[];
        !           137: extern int paramstk[];
        !           138: extern int paramno;
        !           139: extern int autooff, argoff, strucoff;
        !           140: extern int regvar;
        !           141: extern int minrvar;
        !           142: extern int brkflag;
        !           143: extern char yytext[];
        !           144: 
        !           145: extern int strflg;
        !           146: 
        !           147: extern OFFSZ inoff;
        !           148: 
        !           149: extern int reached;
        !           150: 
        !           151: /*     tunnel to buildtree for name id's */
        !           152: 
        !           153: extern int idname;
        !           154: 
        !           155: extern NODE node[];
        !           156: extern NODE *lastfree;
        !           157: 
        !           158: extern int cflag, hflag, pflag;
        !           159: 
        !           160: /* various labels */
        !           161: extern int brklab;
        !           162: extern int contlab;
        !           163: extern int flostat;
        !           164: extern int retlab;
        !           165: extern int retstat;
        !           166: extern int asavbc[], *psavbc;
        !           167: 
        !           168: /*     flags used in structures/unions */
        !           169: 
        !           170: # define SEENAME 01
        !           171: # define INSTRUCT 02
        !           172: # define INUNION 04
        !           173: # define FUNNYNAME 010
        !           174: 
        !           175: /*     flags used in the (elementary) flow analysis ... */
        !           176: 
        !           177: # define FBRK 02
        !           178: # define FCONT 04
        !           179: # define FDEF 010
        !           180: # define FLOOP 020
        !           181: 
        !           182: /*     flags used for return status */
        !           183: 
        !           184: # define RETVAL 1
        !           185: # define NRETVAL 2
        !           186: 
        !           187: /*     used to mark a constant with no name field */
        !           188: 
        !           189: # define NONAME 040000
        !           190: 
        !           191:        /* mark an offset which is undefined */
        !           192: 
        !           193: # define NOOFFSET (-10201)
        !           194: 
        !           195: /*     declarations of various functions */
        !           196: 
        !           197: extern NODE
        !           198:        *buildtree(),
        !           199:        *bdty(),
        !           200:        *mkty(),
        !           201:        *rstruct(),
        !           202:        *dclstruct(),
        !           203:        *getstr(),
        !           204:        *tymerge(),
        !           205:        *stref(),
        !           206:        *offcon(),
        !           207:        *bcon(),
        !           208:        *bpsize(),
        !           209:        *convert(),
        !           210:        *pconvert(),
        !           211:        *oconvert(),
        !           212:        *ptmatch(),
        !           213:        *tymatch(),
        !           214:        *makety(),
        !           215:        *block(),
        !           216:        *doszof(),
        !           217:        *talloc(),
        !           218:        *optim(),
        !           219:        *strargs(),
        !           220:        *clocal();
        !           221: 
        !           222: OFFSZ  tsize(),
        !           223:        psize();
        !           224: 
        !           225: TWORD  types();
        !           226: 
        !           227: 
        !           228: double atof();
        !           229: 
        !           230: char *exname(), *exdcon();
        !           231: 
        !           232: # define checkst(x)
        !           233: 
        !           234: # ifndef CHARCAST
        !           235: /* to make character constants into character connstants */
        !           236: /* this is a macro to defend against cross-compilers, etc. */
        !           237: # define CHARCAST(x) (char)(x)
        !           238: # endif
        !           239: 

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