54 lines
2.5 KiB
C
54 lines
2.5 KiB
C
/*
|
|
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
|
|
* See the copyright notice in the ACK home directory, in the file "Copyright".
|
|
*/
|
|
/* $Header$ */
|
|
|
|
extern int maxply; /* amount of lookahead allowed */
|
|
extern int stackheight; /* # of tokens on fakestack */
|
|
extern token_t fakestack[]; /* fakestack itself */
|
|
extern int nallreg; /* number of allocated registers */
|
|
extern int allreg[]; /* array of allocated registers */
|
|
extern token_p curtoken; /* pointer to current token */
|
|
extern result_t dollar[]; /* Values of $1,$2 etc.. */
|
|
extern int nemlines; /* # of EM instructions in core */
|
|
extern struct emline emlines[]; /* EM instructions itself */
|
|
extern struct emline *emp; /* pointer to current instr */
|
|
extern struct emline *saveemp; /* pointer to start of pattern */
|
|
extern int tokpatlen; /* length of current stackpattern */
|
|
extern rl_p curreglist; /* side effect of findcoerc() */
|
|
#ifndef NDEBUG
|
|
extern int Debug; /* on/off debug printout */
|
|
#endif
|
|
|
|
/*
|
|
* Next descriptions are external declarations for tables created
|
|
* by bootgram.
|
|
* All definitions are to be found in tables.c (Not for humans)
|
|
*/
|
|
|
|
extern byte coderules[]; /* pseudo code for cg itself */
|
|
extern char stregclass[]; /* static register class */
|
|
extern struct reginfo machregs[]; /* register info */
|
|
extern tkdef_t tokens[]; /* token info */
|
|
extern node_t enodes[]; /* expression nodes */
|
|
extern string codestrings[]; /* table of strings */
|
|
extern set_t machsets[]; /* token expression table */
|
|
extern inst_t tokeninstances[]; /* token instance description table */
|
|
extern move_t moves[]; /* move descriptors */
|
|
extern byte pattern[]; /* EM patterns */
|
|
extern int pathash[256]; /* Indices into previous */
|
|
extern c1_t c1coercs[]; /* coercions type 1 */
|
|
#ifdef MAXSPLIT
|
|
extern c2_t c2coercs[]; /* coercions type 2 */
|
|
#endif MAXSPLIT
|
|
extern c3_t c3coercs[]; /* coercions type 3 */
|
|
extern struct reginfo **reglist[]; /* lists of registers per property */
|
|
|
|
#define eqregclass(r1,r2) (stregclass[r1]==stregclass[r2])
|
|
|
|
#ifdef REGVARS
|
|
extern int nregvar[]; /* # of register variables per type */
|
|
extern int *rvnumbers[]; /* lists of numbers */
|
|
#endif
|