Function _Lshl

vm/ByteCodeTranslator/src/javascript/parparvm_runtime.js:3819–3823

(a, n)

function _Lor(a, b) { a = _Lc(a); b = _Lc(b); return _LL(a.l | b.l, a.h | b.h); }
function _Lxor(a, b) { a = _Lc(a); b = _Lc(b); return _LL(a.l ^ b.l, a.h ^ b.h); }
function _Lshl(a, n) { // shift count is a Java int (Number); only low 6 bits used
  a = _Lc(a); n = (_LtoNum(n) | 0) & 63; if (n === 0) return a;
  if (n < 32) return _LL(a.l << n, (a.h << n) | (a.l >>> (32 - n)));
  return _LL(0, a.l << (n - 32));
}
function _Lshr(a, n) { // arithmetic right shift
  a = _Lc(a); n = (_LtoNum(n) | 0) & 63; if (n === 0) return a;
  if (n < 32) return _LL((a.l >>> n) | (a.h << (32 - n)), a.h >> n);