tweeks to the c tests

also figured out hello was caching stopped that to make results
comparable
even wrote a hello assembler version which is just 10% faster than soml
:-)

test/bench/c/loop.c

@@ -0,0 +1,9 @@
+#include<stdio.h>
+
+int main(void)
+{
+int counter = 100352 - 352;
+  while(counter) {
+    counter = counter - 1;
+  }
+}