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Patrick Grimm
2013-03-21 22:53:31 +01:00
parent 5668c55fca
commit 01349ec9e8
843 changed files with 190207 additions and 0 deletions
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18
ports/atmega8/avr035.h Normal file
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#ifndef AVR035_H
#define AVR035_H
/* from AVR035: Efficient C Coding for AVR */
/* a=register, b=bit number to act upon */
#define BIT_SET(a,b) ((a) |= (1<<(b)))
#define BIT_CLEAR(a,b) ((a) &= ~(1<<(b)))
#define BIT_FLIP(a,b) ((a) ^= (1<<(b)))
#define BIT_CHECK(a,b) ((a) & (1<<(b)))
/* x=target variable, y=mask */
#define BITMASK_SET(x,y) ((x) |= (y))
#define BITMASK_CLEAR(x,y) ((x) &= (~(y)))
#define BITMASK_FLIP(x,y) ((x) ^= (y))
#define BITMASK_CHECK(x,y) ((x) & (y))
#endif