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symtab.h
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symtab.h
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/*
* symtab.h - Symbol table
*
* Copyright 2011-2012 by Werner Almesberger
*
* 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, version 3 of the License.
*/
#ifndef SYMTAB_H
#define SYMTAB_H
#include <fpvm/symbol.h>
#include "../renderer/stimuli.h"
#define SF_SYSTEM (1 << 0) /* variable is predefined */
#define SF_ASSIGNED (1 << 1) /* variable has been assigned to */
#define SF_LIVE (1 << 2) /* variable is written to by FN */
#define SF_FIXED (SF_SYSTEM | SF_LIVE)
struct sym_stim {
struct stim_regs *regs;
struct sym_stim *next;
};
struct sym {
struct fpvm_sym fpvm_sym;
int pfv_idx, pvv_idx; /* index; -1 if not a variable known to FN */
struct sym_stim *stim; /* NULL if not a control variable */
int flags;
};
extern struct sym well_known[];
extern int num_well_known;
extern struct sym *user_syms;
extern int num_user_syms;
#define FPVM2SYM(fpvm_sym) ((struct sym *) (fpvm_sym))
#define foreach_sym(p) \
for ((p) = well_known; (p) != user_syms+num_user_syms; \
(p) = (p) == well_known+num_well_known-1 ? user_syms : (p)+1)
void symtab_init(void);
struct sym *unique(const char *s);
struct sym *unique_n(const char *s, int n);
void symtab_free(void);
#endif /* !SYMTAB_H */