bitfield-replace and bitfield-replace-same treat the dest / src arguments flipped.

bit-field-every? is not implemented (set to #f)

(bits bool ...) is treating the arguments MSB first, while the spec says the first argument is bit #0, and so on.

Related to the above, the specs for integer->list, integer->vector, list->integer, vector->integer do not clearly state what the correct order is.   The sample implementation clearly uses MSB first in a consistent fashion.

-jim