c-flew

### Keybase proof

I hereby claim:

  * I am c-flew on github.
  * I am cflew (https://keybase.io/cflew) on keybase.
  * I have a public key ASC32n7zgGoRtElfC-tLiVW2eD-g8J8ifMFgHa4pe-C8-go

To claim this, I am signing this object:

c-flew

import bitops


# for debugging a mask
# e.x.: 4 -> "0100"
func debug(mask: uint) =
  var str: string
  for i in countdown(63, 0):
    if mask.testBit i:
     str = str & "1"