289 lines
8 KiB
C
289 lines
8 KiB
C
#define PDP11 4
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#define BIGGEST_SHORT 0x7fff /* Assumes 32-bit arithmetic */
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#define BIGGEST_LONG 0x7fffffff /* Assumes 32-bit arithmetic */
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#define M(x) (1<<x) /* Mask (x) returns 2^x */
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#define ALLOC(x) (struct x *) ckalloc(sizeof(struct x))
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#define ALLEXPR (expptr) ckalloc( sizeof(union Expression) )
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typedef int *ptr;
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typedef char *charptr;
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typedef FILE *FILEP;
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typedef int flag;
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typedef char field; /* actually need only 4 bits */
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typedef long int ftnint;
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#define LOCAL static
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#define NO 0
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#define YES 1
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#define CNULL (char *) 0 /* Character string null */
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#define PNULL (ptr) 0
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#define CHNULL (chainp) 0 /* Chain null */
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#define ENULL (expptr) 0
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/* BAD_MEMNO - used to distinguish between long string constants and other
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constants in the table */
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#define BAD_MEMNO -32768
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/* block tag values -- syntactic stuff */
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#define TNAME 1
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#define TCONST 2
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#define TEXPR 3
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#define TADDR 4
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#define TPRIM 5 /* Primitive datum - should not appear in an
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expptr variable, it should have already been
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identified */
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#define TLIST 6
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#define TIMPLDO 7
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#define TERROR 8
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/* parser states - order is important, since there are several tests for
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state < INDATA */
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#define OUTSIDE 0
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#define INSIDE 1
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#define INDCL 2
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#define INDATA 3
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#define INEXEC 4
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/* procedure classes */
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#define PROCMAIN 1
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#define PROCBLOCK 2
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#define PROCSUBR 3
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#define PROCFUNCT 4
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/* storage classes -- vstg values. BSS and INIT are used in the later
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merge pass over identifiers; and they are entered differently into the
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symbol table */
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#define STGUNKNOWN 0
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#define STGARG 1 /* adjustable dimensions */
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#define STGAUTO 2 /* for stack references */
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#define STGBSS 3 /* uninitialized storage (normal variables) */
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#define STGINIT 4 /* initialized storage */
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#define STGCONST 5
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#define STGEXT 6 /* external storage */
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#define STGINTR 7 /* intrinsic (late decision) reference. See
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chapter 5 of the Fortran 77 standard */
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#define STGSTFUNCT 8
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#define STGCOMMON 9
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#define STGEQUIV 10
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#define STGREG 11 /* register - the outermost DO loop index will be
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in a register (because the compiler is one
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pass, it can't know where the innermost loop is
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*/
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#define STGLENG 12
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#define STGNULL 13
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#define STGMEMNO 14 /* interemediate-file pointer to constant table */
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/* name classes -- vclass values, also procclass values */
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#define CLUNKNOWN 0
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#define CLPARAM 1 /* Parameter - macro definition */
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#define CLVAR 2 /* variable */
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#define CLENTRY 3
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#define CLMAIN 4
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#define CLBLOCK 5
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#define CLPROC 6
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#define CLNAMELIST 7 /* in data with this tag, the vdcldone flag should
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be ignored (according to vardcl()) */
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/* vprocclass values -- there is some overlap with the vclass values given
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above */
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#define PUNKNOWN 0
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#define PEXTERNAL 1
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#define PINTRINSIC 2
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#define PSTFUNCT 3
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#define PTHISPROC 4 /* here to allow recursion - further distinction
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is given in the CL tag (those just above).
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This applies to the presence of the name of a
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function used within itself. The function name
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means either call the function again, or assign
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some value to the storage allocated to the
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function's return value. */
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/* control stack codes - these are part of a state machine which handles
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the nesting of blocks (i.e. what to do about the ELSE statement) */
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#define CTLDO 1
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#define CTLIF 2
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#define CTLELSE 3
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#define CTLIFX 4
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/* operators for both Fortran input and C output. They are common because
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so many are shared between the trees */
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#define OPPLUS 1
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#define OPMINUS 2
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#define OPSTAR 3
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#define OPSLASH 4
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#define OPPOWER 5
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#define OPNEG 6
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#define OPOR 7
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#define OPAND 8
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#define OPEQV 9
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#define OPNEQV 10
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#define OPNOT 11
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#define OPCONCAT 12
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#define OPLT 13
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#define OPEQ 14
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#define OPGT 15
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#define OPLE 16
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#define OPNE 17
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#define OPGE 18
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#define OPCALL 19
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#define OPCCALL 20
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#define OPASSIGN 21
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#define OPPLUSEQ 22
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#define OPSTAREQ 23
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#define OPCONV 24
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#define OPLSHIFT 25
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#define OPMOD 26
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#define OPCOMMA 27
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#define OPQUEST 28
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#define OPCOLON 29
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#define OPABS 30
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#define OPMIN 31
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#define OPMAX 32
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#define OPADDR 33
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#define OPCOMMA_ARG 34
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#define OPBITOR 35
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#define OPBITAND 36
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#define OPBITXOR 37
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#define OPBITNOT 38
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#define OPRSHIFT 39
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#define OPWHATSIN 40 /* dereferencing operator */
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#define OPMINUSEQ 41 /* assignment operators */
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#define OPSLASHEQ 42
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#define OPMODEQ 43
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#define OPLSHIFTEQ 44
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#define OPRSHIFTEQ 45
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#define OPBITANDEQ 46
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#define OPBITXOREQ 47
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#define OPBITOREQ 48
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#define OPPREINC 49 /* Preincrement (++x) operator */
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#define OPPREDEC 50 /* Predecrement (--x) operator */
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#define OPDOT 51 /* structure field reference */
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#define OPARROW 52 /* structure pointer field reference */
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#define OPNEG1 53 /* simple negation under forcedouble */
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#define OPDMIN 54 /* min(a,b) macro under forcedouble */
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#define OPDMAX 55 /* max(a,b) macro under forcedouble */
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#define OPASSIGNI 56 /* assignment for inquire stmt */
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#define OPIDENTITY 57 /* for turning TADDR into TEXPR */
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#define OPCHARCAST 58 /* for casting to char * (in I/O stmts) */
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#define OPDABS 59 /* abs macro under forcedouble */
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#define OPMIN2 60 /* min(a,b) macro */
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#define OPMAX2 61 /* max(a,b) macro */
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/* label type codes -- used with the ASSIGN statement */
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#define LABUNKNOWN 0
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#define LABEXEC 1
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#define LABFORMAT 2
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#define LABOTHER 3
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/* INTRINSIC function codes*/
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#define INTREND 0
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#define INTRCONV 1
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#define INTRMIN 2
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#define INTRMAX 3
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#define INTRGEN 4 /* General intrinsic, e.g. cos v. dcos, zcos, ccos */
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#define INTRSPEC 5
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#define INTRBOOL 6
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#define INTRCNST 7 /* constants, e.g. bigint(1.0) v. bigint (1d0) */
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/* I/O statement codes - these all form Integer Constants, and are always
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reevaluated */
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#define IOSTDIN ICON(5)
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#define IOSTDOUT ICON(6)
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#define IOSTDERR ICON(0)
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#define IOSBAD (-1)
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#define IOSPOSITIONAL 0
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#define IOSUNIT 1
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#define IOSFMT 2
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#define IOINQUIRE 1
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#define IOOPEN 2
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#define IOCLOSE 3
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#define IOREWIND 4
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#define IOBACKSPACE 5
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#define IOENDFILE 6
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#define IOREAD 7
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#define IOWRITE 8
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/* User name tags -- these identify the form of the original identifier
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stored in a struct Addrblock structure (in the user field). */
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#define UNAM_UNKNOWN 0 /* Not specified */
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#define UNAM_NAME 1 /* Local symbol, store in the hash table */
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#define UNAM_IDENT 2 /* Character string not stored elsewhere */
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#define UNAM_EXTERN 3 /* External reference; check symbol table
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using memno as index */
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#define UNAM_CONST 4 /* Constant value */
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#define UNAM_CHARP 5 /* pointer to string */
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#define IDENT_LEN 31 /* Maximum length user.ident */
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/* type masks - TYLOGICAL defined in ftypes */
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#define MSKLOGICAL M(TYLOGICAL)
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#define MSKADDR M(TYADDR)
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#define MSKCHAR M(TYCHAR)
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#define MSKINT M(TYSHORT)|M(TYLONG)
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#define MSKREAL M(TYREAL)|M(TYDREAL) /* DREAL means Double Real */
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#define MSKCOMPLEX M(TYCOMPLEX)|M(TYDCOMPLEX)
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#define MSKSTATIC (M(STGINIT)|M(STGBSS)|M(STGCOMMON)|M(STGEQUIV)|M(STGCONST))
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/* miscellaneous macros */
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/* ONEOF (x, y) -- x is the number of one of the OR'ed masks in y (i.e., x is
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the log of one of the OR'ed masks in y) */
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#define ONEOF(x,y) (M(x) & (y))
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#define ISCOMPLEX(z) ONEOF(z, MSKCOMPLEX)
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#define ISREAL(z) ONEOF(z, MSKREAL)
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#define ISNUMERIC(z) ONEOF(z, MSKINT|MSKREAL|MSKCOMPLEX)
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#define ISICON(z) (z->tag==TCONST && ISINT(z->constblock.vtype))
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/* ISCHAR assumes that z has some kind of structure, i.e. is not null */
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#define ISCHAR(z) (z->headblock.vtype==TYCHAR)
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#define ISINT(z) ONEOF(z, MSKINT) /* z is a tag, i.e. a mask number */
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#define ISCONST(z) (z->tag==TCONST)
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#define ISERROR(z) (z->tag==TERROR)
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#define ISPLUSOP(z) (z->tag==TEXPR && z->exprblock.opcode==OPPLUS)
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#define ISSTAROP(z) (z->tag==TEXPR && z->exprblock.opcode==OPSTAR)
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#define ISONE(z) (ISICON(z) && z->constblock.Const.ci==1)
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#define INT(z) ONEOF(z, MSKINT|MSKCHAR) /* has INT storage in real life */
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#define ICON(z) mkintcon( (ftnint)(z) )
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/* NO66 -- F77 feature is being used
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NOEXT -- F77 extension is being used */
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#define NO66(s) if(no66flag) err66(s)
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#define NOEXT(s) if(noextflag) errext(s)
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/* round a up to the nearest multiple of b:
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a = b * floor ( (a + (b - 1)) / b )*/
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#define roundup(a,b) ( b * ( (a+b-1)/b) )
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