Jpeg.jpeg.progressive.refine.bit: def of gralha-jpeg-decode@0.1.0.1
Import: import gralha-jpeg-decode@0.1.0.1/jpeg.bend as Jpeg
Lines 302-308 of gralha-jpeg-decode@0.1.0.1/jpeg.bend: https://jend.leeeet.dev/read.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&start_line=302&end_line=308

import Base
import gralha-text-scan@0.1.0.1/scan.bend as U
import gralha-bytes@0.1.0.1/bytes.bend as Bin

def jpeg.progressive.refine.bit(read: JPEGRead, +coefficients: Bin.Bytes, predictor: U32, +at: U32, +p1: U32) -> JPEGBlock:
  JPEGRead{bit, stream} = read
  +old = Bin.bytes.get(coefficients, at)
  +negative = U32.is_ge(old, 2147483648)
  +magnitude = U.choose(U32, negative, (0 - old : U32), old)
  +adjust = U32.is_eq(bit, 1) && U32.is_eq(U32.and(magnitude, p1), 0)
  JPEGBlock{stream, Bin.bytes.set(coefficients, at, U.choose(U32, adjust, (old + U.choose(U32, negative, (0 - p1 : U32), p1) : U32), old)), predictor}

Uses (13):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.add
  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.is_eq
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_ge
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.sub
  https://jend.leeeet.dev/definition.txt?path=gralha-bytes@0.1.0.1/bytes.bend&name=Bytes
  https://jend.leeeet.dev/definition.txt?path=gralha-bytes@0.1.0.1/bytes.bend&name=bytes.get
  https://jend.leeeet.dev/definition.txt?path=gralha-bytes@0.1.0.1/bytes.bend&name=bytes.set
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=JPEGBlock
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=JPEGRead
  https://jend.leeeet.dev/definition.txt?path=gralha-text-scan@0.1.0.1/scan.bend&name=choose