diff --git a/parser/parser.yy b/parser/parser.yy
deleted file mode 100644
--- a/parser/parser.yy
+++ /dev/null
@@ -1,84 +0,0 @@
-/**
- * test/demos/parser/parser.yy
- * Copyright (C) 2008 Markus Broeker
- */
-
-%{
-   #include <stdio.h>
-   #include <ctype.h>
-
-   int regs[26]; 
-   int base;
-	
-   int yyerror();
-   int yylex();
-%}
-
-%start list
-%token DIGIT LETTER
-%left MINUS PLUS MUL DIV
-%left UMINUS
-%%
-
-list : /* empty */ 
-	| list stat '\n' 
-	| list error '\n' { yyerrok; };
-
-stat : 
-	expr { (void) printf( "RESULT: %d\n", $1 ); } 
-	| LETTER '=' expr { regs[$1] = $3; }
-	;
-
-   expr      :  '(' expr ')'
-             {
-                   $$ = $2;
-             }
-             |  expr PLUS expr
-             {
-                   $$ = $1 + $3;
-             }
-             |  expr MINUS expr
-             {
-                   $$ = $1 - $3;
-             }
-             |  expr MUL expr
-             { 
-                   $$ = $1 * $3;
-             }
-             |  expr DIV expr
-             {
-                   $$ = $1 / $3;
-             }
-             |  MINUS expr  %prec UMINUS
-             {
-                   $$ = -$2;
-             }
-             |  LETTER
-             {
-                   $$ = regs[$1];
-             }
-             |  number
-             ;
-
-   number    :   DIGIT
-             {
-                    $$ = $1; base = ($1==0) ? 8 : 10;
-             }
-             |   number DIGIT
-             {
-                    $$ = base * $1 + $2;
-             }
-             ;
-   
-%%
-
-int yyerror() 
-{
-	printf("ERROR\n");
-	return 0;
-}
-
-int yywrap() 
-{
-	return 1;
-}