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- /* eslint no-bitwise: "off" */
- // Thanks: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference
- // /Global_Objects/Math/imul
- "use strict";
- module.exports = function (val1, val2) {
- var xh = (val1 >>> 16) & 0xffff
- , xl = val1 & 0xffff
- , yh = (val2 >>> 16) & 0xffff
- , yl = val2 & 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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