add packToInt, packToLong, bitIsSet and bitIsClear

Author: DRSDavidSoft

Diff for: cores/arduino/Arduino.h

@@ -73,7 +73,7 @@ void yield(void);
   #define INTERNAL INTERNAL1V1
   #define INTERNAL2V56 9
   #define INTERNAL2V56_EXTCAP 13
-#else  
+#else
 #if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) || defined(__AVR_ATmega1284__) || defined(__AVR_ATmega1284P__) || defined(__AVR_ATmega644__) || defined(__AVR_ATmega644A__) || defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644PA__)
 #define INTERNAL1V1 2
 #define INTERNAL2V56 3
@@ -108,11 +108,16 @@ void yield(void);
 #define lowByte(w) ((uint8_t) ((w) & 0xff))
 #define highByte(w) ((uint8_t) ((w) >> 8))
 
+#define packToInt(h,l) ((uint16_t)h)<<8 | (uint16_t)l)
+#define packToLong(i3,i2,i1,i0) (((uint32_t)i3<<24) | ((uint32_t)i2<<16) | ((uint32_t)i1<<8) | (uint32_t)i0)
+
 #define bitRead(value, bit) (((value) >> (bit)) & 0x01)
 #define bitSet(value, bit) ((value) |= (1UL << (bit)))
 #define bitClear(value, bit) ((value) &= ~(1UL << (bit)))
 #define bitToggle(value, bit) ((value) ^= (1UL << (bit)))
 #define bitWrite(value, bit, bitvalue) ((bitvalue) ? bitSet(value, bit) : bitClear(value, bit))
+#define	bitIsSet(value, bit) ((value) & (1UL << (bit)))
+#define	bitIsClear(value, bit) (!((value) & (1UL << (bit))))
 
 // avr-libc defines _NOP() since 1.6.2
 #ifndef _NOP
@@ -172,7 +177,7 @@ extern const uint8_t PROGMEM digital_pin_to_timer_PGM[];
 
 // Get the bit location within the hardware port of the given virtual pin.
 // This comes from the pins_*.c file for the active board configuration.
-// 
+//
 // These perform slightly better as macros compared to inline functions
 //
 #define digitalPinToPort(P) ( pgm_read_byte( digital_pin_to_port_PGM + (P) ) )