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clarify some macros

This commit is contained in:
Michael Moon 2010-10-08 20:59:47 +11:00
parent 775f5400e3
commit f1e318ac1a
1 changed files with 3 additions and 3 deletions
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6
arduino.h
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@ -19,10 +19,10 @@
#define _READ(IO) (IO ## _RPORT & MASK(IO ## _PIN))
#define _WRITE(IO, v) do { if (v) { IO ## _WPORT |= MASK(IO ## _PIN); } else { IO ## _WPORT &= ~MASK(IO ## _PIN); }; } while (0)
#define _TOGGLE(IO) (IO ## _RPORT = MASK(IO ## _PIN))
#define _TOGGLE(IO) do { IO ## _RPORT = MASK(IO ## _PIN) } while (0)
#define _SET_INPUT(IO) (IO ## _DDR &= ~MASK(IO ## _PIN))
#define _SET_OUTPUT(IO) (IO ## _DDR |= MASK(IO ## _PIN))
#define _SET_INPUT(IO) do { IO ## _DDR &= ~MASK(IO ## _PIN) } while (0)
#define _SET_OUTPUT(IO) do { IO ## _DDR |= MASK(IO ## _PIN) } while (0)
#define _GET_INPUT(IO) ((IO ## _DDR & MASK(IO ## _PIN)) == 0)
#define _GET_OUTPUT(IO) ((IO ## _DDR & MASK(IO ## _PIN)) != 0)