Gcm.counter: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/src/crypto/aes/gcm.bend as Gcm
Lines 126-128 of bend-collections@1.0.0.0/src/crypto/aes/gcm.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/crypto/aes/gcm.bend&start_line=126&end_line=128

import Base
import bend-collections@1.0.0.0/src/crypto/aes/types.bend as T

# The counter block: the 96-bit nonce (three words) and a 32-bit counter.
def counter(+n0: T.Quad, +n1: T.Quad, +n2: T.Quad, +c: U32) -> T.State:
  T.S{n0, n1, n2, T.W{U32.and(255, U32.shrn(c, 24n)), U32.and(255, U32.shrn(c, 16n)), U32.and(255, U32.shrn(c, 8n)), U32.and(255, c)}}

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.shrn
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/crypto/aes/types.bend&name=Quad
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/crypto/aes/types.bend&name=State