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- // Thanks: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference
- // /Global_Objects/Math/imul
- 'use strict';
- module.exports = function (x, y) {
- var xh = (x >>> 16) & 0xffff, xl = x & 0xffff
- , yh = (y >>> 16) & 0xffff, yl = y & 0xffff;
- // the shift by 0 fixes the sign on the high part
- // the final |0 converts the unsigned value into a signed value
- return ((xl * yl) + (((xh * yl + xl * yh) << 16) >>> 0) | 0);
- };
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