--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lwasm/debug.c	Wed Jan 19 22:27:17 2011 -0700
@@ -0,0 +1,90 @@
+/*
+debug.c
+
+Copyright © 2010 William Astle
+
+This file is part of LWTOOLS.
+
+LWTOOLS 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+
+#include "lwasm.h"
+#include "instab.h"
+
+/*
+
+Various debug utilities
+
+*/
+void dump_state(asmstate_t *as)
+{
+	line_t *cl;
+	exportlist_t *ex;
+	struct symtabe *s;
+	importlist_t *im;
+	struct line_expr_s *le;
+	lwasm_error_t *e;
+	
+	debug_message(as, 100, "Lines:");
+	
+	for (cl = as -> line_head; cl; cl = cl -> next)
+	{
+		debug_message(as, 100, "%p INSN %d (%s) LEN %d", cl, cl -> insn, (cl -> insn >= 0) ? instab[cl -> insn].opcode : "<none>", cl -> len);
+		debug_message(as, 100, "    ADDR: %s", lw_expr_print(cl -> addr));
+		debug_message(as, 100, "    PB: %02X; LINT: %X; LINT2: %X", cl -> pb, cl -> lint, cl -> lint2);
+		for (le = cl -> exprs; le; le = le -> next)
+		{
+			debug_message(as, 100, "    EXPR %d: %s", le -> id, lw_expr_print(le -> expr));
+		}
+		if (cl -> outputl > 0)
+		{
+			int i;
+			for (i = 0; i < cl -> outputl; i++)
+			{
+				debug_message(as, 100, "    OBYTE %02X: %02X", i, cl -> output[i]);
+			}
+		}
+		for (e = cl -> err; e; e = e -> next)
+		{
+			debug_message(as, 100, "    ERR: %s", e -> mess);
+		}
+		for (e = cl -> warn; e; e = e -> next)
+		{
+			debug_message(as, 100, "    WARN: %s", e -> mess);
+		}
+	}
+}
+
+void debug_message(asmstate_t *as, int level, const char *fmt, ...)
+{
+	va_list args;
+
+	if (as -> debug_level < level)
+		return;
+
+	if (as -> debug_file == NULL)
+		as -> debug_file = stderr;
+
+	va_start(args, fmt);
+	
+	fprintf(as -> debug_file, "DEBUG %03d: ", level);
+	vfprintf(as -> debug_file, fmt, args);
+	fputc('\n', as -> debug_file);
+
+	va_end(args);
+}