Pcg.step_with: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/src/math/random/pcg.bend as Pcg
Lines 59-64 of bend-collections-laws-crypto@1.0.0.0/src/math/random/pcg.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/random/pcg.bend&start_line=59&end_line=64

import Base
import bend-collections-laws-crypto@1.0.0.0/src/math/u64.bend as W
import bend-collections-laws-crypto@1.0.0.0/src/math/w64.bend as X

# state * (mh:ml) + (ih:il) mod 2^128 (Go's (*PCG).next with its constants
# as parameters)
def step_with(+mh: W.U64, +ml: W.U64, +ih: W.U64, +il: W.U64, p: PCG) -> PCG:
  match p:
    case P{+hi, +lo}:
      step_mul(mh, ml, ih, il, hi, lo, X.mul128(lo, ml))

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/random/pcg.bend&name=PCG
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/random/pcg.bend&name=step_mul
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/u64.bend&name=U64
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/w64.bend&name=mul128