flaneth

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/* flaneth - flash and ethernet - dartboard mod
 * version 0.1 date 2008-11-09
 * Copyright (C) 2007-2008 Stefan Schuermans <stefan@schuermans.info>
 * Copyleft: GNU public license V2 - http://www.gnu.org/copyleft/gpl.html
 * a BlinkenArea project - http://www.blinkenarea.org/
 */
#ifndef INC_macros
#define INC_macros
// minimum and maximum
#define min( a, b ) ((a) < (b) ? (a) : (b))
#define max( a, b ) ((a) > (b) ? (a) : (b))
// number of entries in an array
#define count( array ) (sizeof( (array) ) / sizeof( (array)[0] ))
// waiting
#define nop( ) { __asm__ __volatile__ ("nop"::); }
// bit manipulation
#define bit_set( var, bit ) ((var) |= (1 << (bit)))
#define bit_clear( var, bit ) ((var) &= ~(1 << (bit)))
#define bit_toggle( var, bit ) ((var) ^= (1 << (bit)))
#define is_bit_clear( var, bit ) (!(((var) >> (bit)) & 1))
#define is_bit_set( var, bit ) (((var) >> (bit)) & 1)
#endif // #ifndef INC_macros
 
 
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