bug1531269.js (574B)
1 var x = 0b1111n << 126n; 2 // octets: g f e d c b a 9 8 7 6 5 4 3 2 1 0 3 assertEq(x, 0x03c0000000000000000000000000000000n); 4 5 function tr(bits, x) { return BigInt.asUintN(bits, x); } 6 7 // octets: g f e d c b a 9 8 7 6 5 4 3 2 1 0 8 assertEq(tr(131, x), 0x03c0000000000000000000000000000000n); 9 assertEq(tr(130, x), 0x03c0000000000000000000000000000000n); 10 assertEq(tr(129, x), 0x01c0000000000000000000000000000000n); 11 assertEq(tr(128, x), 0x00c0000000000000000000000000000000n); 12 assertEq(tr(127, x), 0x0040000000000000000000000000000000n); 13 assertEq(tr(126, x), 0n);