From da84adb1e9d09b069137dd90f2e99c43a4db42ad Mon Sep 17 00:00:00 2001
From: "David A. Mellis" <d.mellis@arduino.cc>
Date: Sat, 25 Oct 2008 12:52:07 +0000
Subject: [PATCH] Adding word datatype and cast/construction macros, bitRead(),
 bitWrite(), bitSet(), bitClear(), bit().

---
 cores/arduino/WProgram.h |  5 +++++
 cores/arduino/wiring.h   | 28 ++++++++++++----------------
 2 files changed, 17 insertions(+), 16 deletions(-)

diff --git a/cores/arduino/WProgram.h b/cores/arduino/WProgram.h
index 20650df..e20cab5 100755
--- a/cores/arduino/WProgram.h
+++ b/cores/arduino/WProgram.h
@@ -12,6 +12,11 @@
 #ifdef __cplusplus
 #include "HardwareSerial.h"
 
+uint16_t makeWord(uint16_t w) { return w; }
+uint16_t makeWord(byte h, byte l) { return (h << 8) | l; }
+
+#define word(...) makeWord(__VA_ARGS__)
+
 unsigned long pulseIn(uint8_t pin, uint8_t state, unsigned long timeout = 1000000L);
 
 // WMath prototypes
diff --git a/cores/arduino/wiring.h b/cores/arduino/wiring.h
index 3701f6d..46d5334 100755
--- a/cores/arduino/wiring.h
+++ b/cores/arduino/wiring.h
@@ -66,13 +66,6 @@ extern "C"{
 #undef abs
 #endif
 
-//#define int(x)     ((int)(x))
-//#define char(x)    ((char)(x))
-//#define long(x)    ((long)(x))
-//#define byte(x)    ((uint8_t)(x))
-//#define float(x)   ((float)(x))
-//#define boolean(x) ((uint8_t)((x)==0?0:1))
-
 #define min(a,b) ((a)<(b)?(a):(b))
 #define max(a,b) ((a)>(b)?(a):(b))
 #define abs(x) ((x)>0?(x):-(x))
@@ -89,6 +82,18 @@ extern "C"{
 #define clockCyclesToMicroseconds(a) ( (a) / clockCyclesPerMicrosecond() )
 #define microsecondsToClockCycles(a) ( (a) * clockCyclesPerMicrosecond() )
 
+#define lowByte(w) ((w) & 0xff)
+#define highByte(w) ((w) >> 8)
+
+#define bitRead(value, bit) (((value) >> (bit)) & 0x01)
+#define bitSet(value, bit) ((value) |= (1UL << (bit)))
+#define bitClear(value, bit) ((value) &= ~(1UL << (bit)))
+#define bitWrite(value, bit, bitvalue) (bitvalue ? bitSet(value, bit) : bitClear(value, bit))
+
+typedef unsigned int word;
+
+#define bit(b) (1 << (b))
+
 typedef uint8_t boolean;
 typedef uint8_t byte;
 
@@ -106,15 +111,6 @@ void serialWrite(unsigned char);
 int serialAvailable(void);
 int serialRead(void);
 void serialFlush(void);
-void printMode(int);
-void printByte(unsigned char c);
-void printNewline(void);
-void printString(const char *s);
-void printInteger(long n);
-void printHex(unsigned long n);
-void printOctal(unsigned long n);
-void printBinary(unsigned long n);
-void printIntegerInBase(unsigned long n, unsigned long base);
 
 unsigned long millis(void);
 void delay(unsigned long);