code: function () {
              var t = this.dpop() >>> 0;
              var n = this.dpop() >>> 0;
              var nn = Long.fromValue(n, true);
              var tt = Long.fromValue(t, true);
              var ddd = nn.mul(tt);
              this.dpush(ddd.low);
              this.dpush(ddd.high);
          }
docs: 6.1.2360 UM* “u-m-star” (CORE) ( u1 u2 -- ud ) Multiply u 1 by u 2, giving the unsigned double-cell product ud. All values and arithmetic are unsigned.