1 // https://gist.github.com/BrendanEich/4294d5c212a6d2254703
2 var $export = require('./_export');
4 $export($export.S, 'Math', {
5 isubh: function isubh(x0, x1, y0, y1){
9 return $x1 - (y1 >>> 0) - ((~$x0 & $y0 | ~($x0 ^ $y0) & $x0 - $y0 >>> 0) >>> 31) | 0;