block version of loop

no debugging, just worked!
only about 10% slower, nice
also recording qemu-linux times, which are a lot faster(and double bonus, save the startup/syncing)

test/bench/rubyx/loop.rb

@@ -9,3 +9,5 @@ class Space
     return b
   end
 end
+# 9.5 local
+# 45 on pi

test/bench/rubyx/noop.rb

@@ -3,3 +3,6 @@ class Space
     return 0
   end
 end
+
+# 5.5 local
+# 42 on pi

test/bench/rubyx/times.rb

@@ -0,0 +1,17 @@
+class Space
+  def times(n)
+    i = 0
+    while( i < n )
+      yield
+      i = i + 1
+    end
+    return n
+  end
+  def main(arg)
+    return times(100000) {
+      return 1
+    }
+  end
+end
+# 13 local
+# 51 on pi