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Diffstat (limited to 'mixlib/xmix_parser.h')
| -rw-r--r-- | mixlib/xmix_parser.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/mixlib/xmix_parser.h b/mixlib/xmix_parser.h new file mode 100644 index 0000000..51f1560 --- /dev/null +++ b/mixlib/xmix_parser.h @@ -0,0 +1,111 @@ +/* -*-c-*- ---------------- xmix_parser.h : + * Declarations for the implementation of mix_parser_t + * ------------------------------------------------------------------ + * Copyright (C) 2000, 2004 Free Software Foundation, Inc. + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + + +#ifndef XMIX_PARSER_H +#define XMIX_PARSER_H + +#include "mix_ins.h" +#include "mix_file.h" +#include "mix_symbol_table.h" +#include "mix_parser.h" + +/* mix_parser_t definition */ +struct mix_parser_t +{ + mix_file_t *in_file; /* the source file to be compiled */ + mix_symbol_table_t *symbol_table; + mix_symbol_table_t *ls_table; /* literal strings symbols */ + guint cur_ls; /* current literal string symbol */ + GHashTable *future_refs; /* a map from symbol name to list of addresses */ + GTree *ins_table; /* a table of compiled instructions */ + GSList *con_list; /* CON instructions */ + GSList *alf_list; /* ALF instructions */ + mix_address_t loc_count; /* current memory location during compilation */ + mix_parser_err_t status; /* outcome of compilation */ + guint err_line; /* line of the last error */ + guint err_count; /* no. of errors during compilation */ + guint warn_count; /* no. of warnings during compilation */ + mix_address_t start; /* start address of the compiled code */ + mix_address_t end; /* end address of the compiled code */ +}; + +/* each node of the ins_table stores a mix_word_t with the instruction + and a source code line (for debugging and listing) +*/ +typedef struct ins_node_ +{ + mix_word_t ins; + guint lineno; +} ins_node_; + + +/* functions to manipulate mix_parser_t during compilation */ + +/* access loc counter */ +#define get_ploc_(parser) ((parser)->loc_count) + +/* symbol table */ +/* Define a new symbol with given value + * and update previously set refs to this symbol + */ +extern mix_parser_err_t +mix_parser_define_symbol_value (mix_parser_t *parser, const gchar *name, + mix_word_t value); + +/* Define a new symbol with value equal to the current loc_count + * and update previously set refs to this symbol + */ +extern mix_parser_err_t +mix_parser_define_symbol_here (mix_parser_t *parser, const gchar *name); + +/* Set a reference to future symbol here */ +extern void +mix_parser_set_future_ref (mix_parser_t *parser, const gchar *name); + +/* Redefine the value of a local symbol as the current loc_count */ +extern void +mix_parser_manage_local_symbol (mix_parser_t *parser, const gchar *name, + mix_short_t value); + +/* Literal strings symbols */ +extern void +mix_parser_define_ls (mix_parser_t *parser, mix_word_t value); + +/* Compilation */ +/* Add instruction with address the current loc_count */ +extern void +mix_parser_add_ins (mix_parser_t *parser, const mix_ins_t *new_ins, + guint lineno); +extern void +mix_parser_add_raw (mix_parser_t *parser, mix_word_t word, guint lineno, + gboolean is_con); + +/* Error handling */ +extern void +mix_parser_log_error (mix_parser_t *parser, mix_parser_err_t error, + gint lineno, const gchar *comment, gboolean warn); + + + + +#endif /* XMIX_PARSER_H */ + |