Start on direct CPP migration

libs/microbit/control.cpp

@@ -0,0 +1,30 @@
+#include "BitVM.h"
+
+namespace control {
+    void fiberDone(void *a)
+    {
+      decr((Action)a);
+      release_fiber();
+    }
+
+    /**
+     * Schedules code that run in the background.
+     */
+    //% help=control/in-background
+    //% blockId="control_in_background" block="run in background" blockGap=8
+    void inBackground(Action a) {
+      if (a != 0) {
+        incr(a);
+        create_fiber((void(*)(void*))action::run, (void*)a, fiberDone);
+      }
+    }
+
+    /**
+     * Resets the BBC micro:bit.
+     */
+    //% weight=30 async help=control/reset
+    //% blockId="control_reset" block="reset"
+    void reset() { 
+      uBit.reset(); 
+    }
+}