Added some RK11 fixes for the 11/70 CPU EXERCISER, and some Debugger improvements for dumping address info ("da")

modules/shared/lib/strlib.js

@@ -222,7 +222,7 @@ str.toOct = function(n, cch, fPrefix)
     if (cch) {
         if (cch > 11) cch = 11;
     } else {
-        cch = (n & ~0xffff)? 11 : 6;    // TODO: For our 22-bit machines, we really don't need more than 8 digits max
+        cch = (n & ~0xffffff)? 11 : ((n & ~0xffff)? 8 : 6);
     }
     /*
      * An initial "falsey" check for null takes care of both null and undefined;