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benjcal/bit-twiddling

Last active November 1, 2017 15:41
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bit-twiddling
// Credits: https://github.com/hexagon5un/AVR-Programming/blob/master/AVR-Programming-Library/macros.h
#define BV(bit) (1 << bit)
#define set_bit(sfr, bit) (_SFR_BYTE(sfr) |= BV(bit)) // old sbi()
#define clear_bit(sfr, bit) (_SFR_BYTE(sfr) &= ~BV(bit)) // old cbi()
#define toggle_bit(sfr, bit) (_SFR_BYTE(sfr) ^= BV(bit))
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