testbed is now functional

I would like to make sure some _ tests are
passing, however I have to think of a nice
way to grab debug output and compare it
nicely.  Some require NReg == 3, that is a
pain in the ass.  Maybe they can be changed
to work for the full register set.

lisc/test/cup.ssa

@@ -12,6 +12,6 @@ function $test() {
 }
 
 # >>> driver
-# extern void test();
+# extern void test(void);
 # int main() { test(); return 0; }
 # <<<