Diff: macros.h

Revision:

0:a3b629f6dab5

diff -r 000000000000 -r a3b629f6dab5 macros.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/macros.h	Mon Jul 23 12:32:19 2018 +0000
@@ -0,0 +1,24 @@
+#define _BV(bit) (1 << (bit))
+#define bit(b) (1UL << (b))
+
+#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))
+
+#define lowByte(w) ((uint8_t)((w) & 0xff))
+#define highByte(w) ((uint8_t)((w) >> 8))
+#define lowWord(w) ((uint16_t)((w) & 0xffff))
+#define highWord(w) ((uint16_t)((w) >> 16))
+#define bytesToWord(hb, lb) ((uint16_t)((((uint16_t)(hb & 0xFF)) << 8) | ((uint16_t)lb)))
+#define wordstoDWord(hw, lw) ((uint32_t)((((uint32_t)(hw & 0xFFFF)) << 16) | ((uint32_t)lw)))
+
+#define min(a,b) ((a)<(b)?(a):(b))
+#define max(a,b) ((a)>(b)?(a):(b))
+
+#define swap(x,y) { x = x + y; y = x - y; x = x - y; }
+
+#define abs(value) ((value)>0?(value):(-value))
+#define constrain(amt,low,high) ((amt)<(low)?(low):((amt)>(high)?(high):(amt)))
+
+#define LV_MATH_ABS(x) ((x)>0?(x):(-(x)))