Name
__bitmap_shift_right —
logical right shift of the bits in a bitmap
Synopsis
void __bitmap_shift_right ( | unsigned long * dst, |
| | const unsigned long * src, |
| | unsigned shift, |
| | unsigned nbits); |
Arguments
unsigned long * dst
destination bitmap
const unsigned long * src
source bitmap
unsigned shift
shift by this many bits
unsigned nbits
bitmap size, in bits
Description
Shifting right (dividing) means moving bits in the MS -> LS bit
direction. Zeros are fed into the vacated MS positions and the
LS bits shifted off the bottom are lost.