blob: a25da686ae5bdad95eaf77395ca11edb2fd1af47 [file] [log] [blame]
// https://gist.github.com/BrendanEich/4294d5c212a6d2254703
var $export = require('./_export');
$export($export.S, 'Math', {
imulh: function imulh(u, v){
var UINT16 = 0xffff
, $u = +u
, $v = +v
, u0 = $u & UINT16
, v0 = $v & UINT16
, u1 = $u >> 16
, v1 = $v >> 16
, t = (u1 * v0 >>> 0) + (u0 * v0 >>> 16);
return u1 * v1 + (t >> 16) + ((u0 * v1 >>> 0) + (t & UINT16) >> 16);
}
});