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on this file was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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1 | var $ = require('../internals/export');
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2 |
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3 | // `Math.umulh` method
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4 | // https://gist.github.com/BrendanEich/4294d5c212a6d2254703
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5 | // TODO: Remove from `core-js@4`
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6 | $({ target: 'Math', stat: true }, {
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7 | umulh: function umulh(u, v) {
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8 | var UINT16 = 0xFFFF;
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9 | var $u = +u;
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10 | var $v = +v;
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11 | var u0 = $u & UINT16;
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12 | var v0 = $v & UINT16;
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13 | var u1 = $u >>> 16;
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14 | var v1 = $v >>> 16;
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15 | var t = (u1 * v0 >>> 0) + (u0 * v0 >>> 16);
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16 | return u1 * v1 + (t >>> 16) + ((u0 * v1 >>> 0) + (t & UINT16) >>> 16);
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17 | }
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18 | });
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