Adding MS/TP demo for ATmega168. Not finished yet.

bacnet-stack/ports/atmega168/avr035.h

@@ -0,0 +1,18 @@
+#ifndef AVR035_H
+#define AVR035_H
+
+/* from AVR035: Efficient C Coding for AVR */
+
+/* a=register, b=bit number to act upon */
+#define BIT_SET(a,b) ((a) |= (1<<(b)))
+#define BIT_CLEAR(a,b) ((a) &= ~(1<<(b)))
+#define BIT_FLIP(a,b) ((a) ^= (1<<(b)))
+#define BIT_CHECK(a,b) ((a) & (1<<(b)))
+
+/* x=target variable, y=mask */
+#define BITMASK_SET(x,y) ((x) |= (y))
+#define BITMASK_CLEAR(x,y) ((x) &= (~(y)))
+#define BITMASK_FLIP(x,y) ((x) ^= (y))
+#define BITMASK_CHECK(x,y) ((x) & (y))
+
+#endif