From 750b5028a18de8a958db63849b5bae84180dad84 Mon Sep 17 00:00:00 2001
From: jaortega <jaortega>
Date: Wed, 1 Nov 2000 22:53:21 +0000
Subject:

---
 mixlib/xmix_parser.h | 96 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 mixlib/xmix_parser.h

(limited to 'mixlib/xmix_parser.h')

diff --git a/mixlib/xmix_parser.h b/mixlib/xmix_parser.h
new file mode 100644
index 0000000..fee385c
--- /dev/null
+++ b/mixlib/xmix_parser.h
@@ -0,0 +1,96 @@
+/* -*-c-*- ---------------- xmix_parser.h :
+ * Declarations for the implementation of mix_parser_t
+ * ------------------------------------------------------------------
+ * Copyright (C) 2000 jose antonio ortega ruiz <jaortega@acm.org>
+ *  
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 */
+  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 */
+};
+
+/* 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 */
+/* symbol table */
+
+/* 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);
+
+/* 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);
+
+/* 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 */
+
-- 
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