node_params/hnw/hn.js

var  w = 4294967296; // 先固定
var M = r2(0,0,false);


function mul_(v0, v1, v2, v3){
  let i32_v0 = new Int32Array(8);
  i32_v0[0] = v0;
  let i64_v0 = new BigInt64Array(i32_v0.buffer)[0];
  // console.log(i64_v0)
  let i32_v1 = new Int32Array(8);
  i32_v1[0] = v1;
  let i64_v1 = new BigInt64Array(i32_v1.buffer)[0];


  let i32_v2 = new Int32Array(8);
  i32_v2[0] = v2;
  let i64_v2 = new BigInt64Array(i32_v2.buffer)[0];


  let i32_v3 = new Int32Array(8);
  i32_v3[0] = v3;
  let i64_v3 = new BigInt64Array(i32_v3.buffer)[0];

  let i64_const = 32n;

  // shl、or、mul操作
  let tmp = (i64_v0 | (i64_v1 << i64_const))  * (i64_v2 | (i64_v3 << i64_const));

  // console.log(Number(tmp), tmp)
  // global0 shr_s
  let get_length = Number(tmp >> i64_const);

  let res = Number(tmp) >> 32;

  // console.log(res, get_length);
  return {mul: res, get_length: get_length}

}



function div_u_(v0, v1, v2, v3){
  let i32_v0 = new Int32Array(8);
  i32_v0[0] = v0;
  let i64_v0 = new BigInt64Array(i32_v0.buffer)[0];
  // console.log(i64_v0)
  let i32_v1 = new Int32Array(8);
  i32_v1[0] = v1;
  let i64_v1 = new BigInt64Array(i32_v1.buffer)[0];
  // console.log(i64_v1)

  let i32_v2 = new Int32Array(8);
  i32_v2[0] = v2;
  let i64_v2 = new BigInt64Array(i32_v2.buffer)[0];


  let i32_v3 = new Int32Array(8);
  i32_v3[0] = v3;
  let i64_v3 = new BigInt64Array(i32_v3.buffer)[0];

  let i64_const = 32n;
  // let u32_max = 0xFFFFFFFF;

  // shl、or、div操作
  let tmp = ((i64_v0 | (i64_v1 << i64_const))  / (i64_v2 | (i64_v3 << i64_const))) 

  // console.log(Number(tmp))
  // global0 shr_s
  let get_length = Number(tmp >> i64_const);

  let res = Number(tmp) >> 32;

  // console.log(res, get_length);
  return {div_u: res, get_length: get_length}

}



function randomInt (e, t) {
      return Math.floor(Math.random() * (t - e + 1) + e)
}

function o(t) {
        return !0 === (t && t.__isLong__)
}

function m(t, e) {
        return "number" == typeof t ? l(t, e) : "string" == typeof t ? y(t, e) : d(t.low, t.high, "boolean" == typeof e ? e : t.unsigned)
}


function toUnsigned(obj) {
    return obj.unsigned ? obj : d(obj.low, obj.high, !0)
}

function isZero(obj) {
    return 0 === obj.high && 0 === obj.low
}


function r2(t, e, n) {
    return {low:0 | t, high:0 | e, unsigned:!!n}
}


function d(t, e, n) {
      return r2(t,e,n)
}

function eq(t, obj) {
        return o(t) || (t = m(t)),
        (obj.unsigned === t.unsigned || obj.high >>> 31 != 1 || t.high >>> 31 != 1) && (obj.high === t.high && obj.low === t.low)
}

function not(obj){
  return d(~obj.low, ~obj.high, obj.unsigned);
}

function neg(obj) {
  let k = {
    "low": 1,
    "high": 0,
    "unsigned": false
}
  return add(k, not(obj));
}



function l(t, e) {
    return t < 0 ? l(-t, e).neg() : d(t % w | 0, t / w | 0, e)
}

function isNegative(obj){
  return !obj.unsigned && obj.high < 0
}


function isOdd(obj) {
        return 1 == (1 & obj.low)
    }


function mul(t, obj) {
        if (isZero(obj))
            return M;
        if (o(t) || (t = m(t))){
          let mul$ = mul_(obj.low, obj.high, t.low, t.high);
          return d(mul$["mul"], mul$["get_length"], obj.unsigned); 
        }
        if (isZero(t))
            return M;
        if (eq(j, obj))
            return t.isOdd() ? j : M;
        if (eq(j, t))
            return isOdd(obj) ? j : M;
        if (isNegative(obj))
            return t.isNegative() ? this.neg().mul(t.neg()) : this.neg().mul(t).neg();
        if (t.isNegative())
            return this.mul(t.neg()).neg();
        if (this.lt(x) && t.lt(x))
            return l(this.toNumber() * t.toNumber(), this.unsigned);
        var e = obj.high >>> 16
          , r = 65535 & obj.high
          , f = obj.low >>> 16
          , c = 65535 & obj.low
          , h = t.high >>> 16
          , v = 65535 & t.high
          , y = t.low >>> 16
          , w = 65535 & t.low
          , _ = 0
          , S = 0
          , E = 0
          , k = 0;
        return E += (k += c * w) >>> 16,
        S += (E += f * w) >>> 16,
        E &= 65535,
        S += (E += c * y) >>> 16,
        _ += (S += r * w) >>> 16,
        S &= 65535,
        _ += (S += f * y) >>> 16,
        S &= 65535,
        _ += (S += c * v) >>> 16,
        _ += e * w + r * y + f * v + c * h,
        d((E &= 65535) << 16 | (k &= 65535), (_ &= 65535) << 16 | (S &= 65535), obj.unsigned)
    }


function div(t, o){
  let div_ = div_u_(o.low, o.high, t.low, t.high);
  return o.unsigned || -2147483648 !== o.high || -1 !== t.low || -1 !== t.high ? d(div_["div_u"], div_["get_length"], o.unsigned) : o;
}


function sub(t, obj) {
    return o(t) || (t = m(t)),
        add(neg(t), obj)
}

function toInt(obj) {
      return obj.unsigned ? obj.low >>> 0 : obj.low
}


function toS(t, obj){
  for (var r = l(Math.pow(t, 6), obj.unsigned), o = obj, f = ""; ; ) {
        var c = div(r, o)

        h = (toInt(sub(mul(r, c), o)) >>> 0).toString(t),
         h = (toInt(sub(mul(r, c), o)) >>> 0).toString(t);
        if (isZero(o = c))
            return h + f;
        for (; h.length < 6; )
            h = "0" + h;
        f = "" + h + f
    }
}


function add(t, obj) {
    o(t) || (t = m(t));
    var e = obj.high >>> 16
      , n = 65535 & obj.high
      , r = obj.low >>> 16
      , f = 65535 & obj.low
      , c = t.high >>> 16
      , h = 65535 & t.high
      , l = t.low >>> 16
      , v = 0
      , y = 0
      , w = 0
      , _ = 0;
    return w += (_ += f + (65535 & t.low)) >>> 16,
    y += (w += r + l) >>> 16,
    v += (y += n + h) >>> 16,
    v += e + c,
    d((w &= 65535) << 16 | (_ &= 65535), (v &= 65535) << 16 | (y &= 65535), obj.unsigned)
}

function y(t, e, n) {
    var p;
    for (var r = l(Math.pow(n, 8)), o = M, i = 0; i < t.length; i += 8) {
        var f = Math.min(8, t.length - i)
          , c = parseInt(t.substring(i, i + f), n);
        if (f < 8) {
            var h = l(Math.pow(n, f));
            o = add(l(c), mul(h, o));
        } else{
          o = add(l(c), mul(r, o));
        }
          
    }
    return o.unsigned = e,
    o
}

function getS(key){
  return toS(10, toUnsigned(y(key, !0, 16)));
}


module.exports = {
  getS
}