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/main.c

@@ -42,10 +42,11 @@
 /* common */
 #include "cmdline.h"
 #include "version.h"
-	  
+
 /* ca65 */
 #include "error.h"
 #include "expr.h"
+#include "filetab.h"
 #include "global.h"
 #include "incpath.h"
 #include "instr.h"
@@ -307,7 +308,7 @@ static void OneLine (void)
      */
     if (!HavePushedInput ()) {
 	InitListingLine ();
-    }	  
+    }
 
     if (Tok == TOK_COLON) {
 	/* An unnamed label */