Function bech32PolymodStep

src/utils/transform.ts:25–33

(pre: number)

for (let i = 0; i < BECH32_ALPHABET.length; i++) { BECH32_ALPHABET_MAP[BECH32_ALPHABET[i]] = i }

function bech32PolymodStep(pre: number): number {
  const b = pre >> 25
  return (((pre & 0x1ffffff) << 5) ^
    (-((b >> 0) & 1) & 0x3b6a57b2) ^
    (-((b >> 1) & 1) & 0x26508e6d) ^
    (-((b >> 2) & 1) & 0x1ea119fa) ^
    (-((b >> 3) & 1) & 0x3d4233dd) ^
    (-((b >> 4) & 1) & 0x2a1462b3))
}

function bech32PrefixChk(prefix: string): number {
  let chk = 1