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60 pfowler 1 
#ifndef util_h
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#define util_h
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#define sbi(sfr, bit)   ((sfr) |= _BV(bit))
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#define cbi(sfr, bit)   ((sfr) &= ~(_BV(bit)))
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#define xbi(sfr, bit)   ((sfr) ^= _BV(bit))
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#define rbi(sfr, bit)   (((sfr) >> (bit)) & 0x01)
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inline uint8_t map_8(uint8_t x, uint8_t in_min, uint8_t in_max, uint8_t out_min, uint8_t out_max);
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void analogInit(void);
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uint8_t analogRead(uint8_t channel);
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97 pfowler 14 
typedef void (*tick_ptr)();
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void sysclockInit(void);
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60 pfowler 18 
#endif