def write.at
import bend-kit-bits@0.1.0.1/bits.bend as Bitsimport Base
152def write.at(+msb: Bool, w: Writer, +n: U32, +v: U32) -> Writer:
153 Writer{buf, dep, +pos} = w
154 Writer{write.put((pos >> 5n : U32), parts(msb, (pos .&. 31 : U32), n, v), buf), dep, (pos + n : U32)}