Function add32to64

packages/service-worker/cli/sha1.ts:63–67

(a: number, b: number)

}

function add32to64(a: number, b: number): [number, number] {
  const low = (a & 0xffff) + (b & 0xffff);
  const high = (a >>> 16) + (b >>> 16) + (low >>> 16);
  return [high >>> 16, (high << 16) | (low & 0xffff)];
}

function add64([ah, al]: [number, number], [bh, bl]: [number, number]): [number, number] {
  const [carry, l] = add32to64(al, bl);