michael@0: function sprod(x, y) {
michael@0:     var iprod = Math.imul(x | 0, y | 0);
michael@0:     var fprod = (x | 0) * (y | 0);
michael@0:     return iprod + fprod;
michael@0: }
michael@0: assertEq(sprod(2, 2), 8);
michael@0: assertEq(sprod(0x10000, 0x10000), 0x100000000);