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#ifndef BITARITH_H_INCLUDED
#define BITARITH_H_INCLUDED
#include "pm_config.h"
static __inline__ unsigned char
pm_byteLeftBits(unsigned char const x,
unsigned int const n) {
/*----------------------------------------------------------------------------
Clear rightmost (8-n) bits, retain leftmost (=high) n bits.
Return arbitrary value if n > 8.
-----------------------------------------------------------------------------*/
unsigned char retval;
retval = x;
retval >>= (8-n);
retval <<= (8-n);
return retval;
}
static __inline__ unsigned char
pm_byteRightBits(unsigned char const x,
unsigned int const n){
/*----------------------------------------------------------------------------
Return rightmost (=low) n bits of x.
Return arbitrary value if n > 8.
-----------------------------------------------------------------------------*/
unsigned char retval;
retval = x;
retval <<= (8-n);
retval >>= (8-n);
return retval;
}
#endif
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