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authorDavid A. Mellis <d.mellis@arduino.cc>2007-11-21 17:08:07 +0000
committerDavid A. Mellis <d.mellis@arduino.cc>2007-11-21 17:08:07 +0000
commit0292fe91fc2de0e5c5b374a6d0e0c3879fe49387 (patch)
treef6361f290f3a2621e39f442ddda4c89cd4e5b915 /cores/arduino/wiring.h
parent72d917f70cdf8edbb11c0648b59bb9afeae64065 (diff)
Adding map(), fixing radians() and degrees(), adding cast functions (int(x) instead of (int) x), adding interrupts() and noInterrupts(), etc.
Diffstat (limited to 'cores/arduino/wiring.h')
-rwxr-xr-xcores/arduino/wiring.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/cores/arduino/wiring.h b/cores/arduino/wiring.h
index 3c77389..e0c5315 100755
--- a/cores/arduino/wiring.h
+++ b/cores/arduino/wiring.h
@@ -44,6 +44,8 @@ extern "C"{
#define PI 3.14159265
#define HALF_PI 1.57079
#define TWO_PI 6.283185
+#define DEG_TO_RAD 0.01745329
+#define RAD_TO_DEG 57.2957786
#define SERIAL 0x0
#define DISPLAY 0x1
@@ -55,14 +57,30 @@ extern "C"{
#define FALLING 2
#define RISING 3
+// undefine stdlib's abs if encountered
+#ifdef abs
+#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))
#define constrain(amt,low,high) ((amt)<(low)?(low):((amt)>(high)?(high):(amt)))
+#define round(x) ((x)>=0?(long)((x)+0.5):(long)((x)-0.5))
#define radians(deg) ((deg)*DEG_TO_RAD)
#define degrees(rad) ((rad)*RAD_TO_DEG)
#define sq(x) ((x)*(x))
+#define interrupts() sei()
+#define noInterrupts() cli()
+
#define clockCyclesPerMicrosecond() ( F_CPU / 1000000L )
#define clockCyclesToMicroseconds(a) ( (a) / clockCyclesPerMicrosecond() )