Added arduino libs

libraries/EnableInterrupt/utility/ei_PinChangeLeonardo.h

@@ -0,0 +1,33 @@
+// ALL pin change interrupts are on Port B on Leonardo.
+#ifdef EI_SECTION_RISING
+#ifndef EI_NOTPORTB
+risingPinsPORTB |= portMask;
+#endif
+#endif // EI_SECTION_RISING
+
+#ifdef EI_SECTION_FALLING
+#ifndef EI_NOTPORTB
+fallingPinsPORTB |= portMask;
+#endif
+#endif // EI_SECTION_FALLING
+
+#if defined EI_SECTION_ASSIGNFUNCTIONSREGISTERS
+#ifndef EI_NOTPORTB
+#ifndef NEEDFORSPEED
+calculatedPointer=&portBFunctions.pinZero + portBitNumber;
+*calculatedPointer = userFunction;
+#endif
+portSnapshotB=*portInputRegister(portNumber);
+pcmsk=&PCMSK0;
+PCICR |= _BV(0);
+#endif
+#endif // EI_SECTION_ASSIGNFUNCTIONSREGISTERS
+
+#ifdef EI_SECTION_DISABLEPINCHANGE
+#ifndef EI_NOTPORTB
+PCMSK0 &= ~portMask;
+if (PCMSK0 == 0) { PCICR &= ~_BV(0); };
+risingPinsPORTB &= ~portMask;
+fallingPinsPORTB &= ~portMask;
+#endif
+#endif // EI_SECTION_DISABLEPINCHANGE