Increased the file count to 16 bits when written to the object file.

Moved the input file table to a separate module and added an AddFile()
function to add files to this table.
Removed the 8 bit limit for the file number in several places (the file
number is still 8 bits in the file position structure).
Added a pseudo instruction .dbg that will be used to add debug info from
high level code to the assembler source.
Added a subkey "file" to the .dbg command that allows to add a file to the
file table that is later written to the object file.


git-svn-id: svn://svn.cc65.org/cc65/trunk@258 b7a2c559-68d2-44c3-8de9-860c34a00d81

src/ca65/error.c

@@ -1,8 +1,8 @@
 /*****************************************************************************/
 /*                                                                           */
-/*				    error.c				     */
+/*  				    error.c				     */
 /*                                                                           */
-/*		  Error handling for the ca65 macroassembler		     */
+/*  		  Error handling for the ca65 macroassembler		     */
 /*                                                                           */
 /*                                                                           */
 /*                                                                           */
@@ -36,7 +36,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdarg.h>
-
+		    
+/* ca65 */
+#include "filetab.h"
 #include "nexttok.h"
 #include "error.h"
 
@@ -180,7 +182,7 @@ void ErrorMsg (const FilePos* Pos, unsigned ErrNum, va_list ap)
        	"Conditional assembly branch was never closed",
 	"Lexical level was not terminated correctly",
 	"Segment attribute mismatch",
-	"CPU not supported",
+    	"CPU not supported",
 	"Counter underflow",
 	"Undefined label",
 	"Open `%s<>",