mask package:ghc

The prefix of key i up to (but not including) the switching bit m.

The prefix of key i up to (but not including) the switching bit m.

a bit mask to retrieve the lower 16-bits

a bit mask to retrieve the lower 8-bits

A bit-mask for the lower half-word of current platform.

The first switching bit where the two prefixes disagree.

Return a word where only the highest bit is set.