refactor

Author: nerdralph

src/local/as_common.h

@@ -0,0 +1,13 @@
+// ArduinoShrink refactored code here
+
+#pragma once
+
+// avr-libc math.h does not declare gcc log2 builtin
+double log2(double);
+
+// portability macros for mega8
+#ifndef TCCR0B
+#define TCCR0B TCCR0
+#define TIMSK0 TIMSK
+#endif
+