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#define CROL( value, bits ) ( ( value << bits ) | ( value >> ( 0x20 - bits ) ) )
unsigned int value = 0xaffffffa;
CROL( value, 2 );
printf( "0x%x\n", value );
unsigned int value = 0xaffffffa;
printf( "0x%x\n", CROL( value, 2 ) );