// Copyright 2014 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. var stdlib = {}; var foreign = {}; var heap = new ArrayBuffer(64 * 1024); function Word32And(rhs) { var name = "and_0x" + Number(rhs).toString(16); var m = eval( 'function Module(stdlib, foreign, heap) {\n' + ' "use asm";\n' + ' function ' + name + '(lhs) {\n' + ' lhs = lhs | 0;\n' + ' return (lhs & 0x' + Number(rhs).toString(16) + ') | 0;\n' + ' }\n' + ' return { f: ' + name + '}\n' + '}; Module'); return m(stdlib, foreign, heap).f; } var masks = [0xffffffff, 0xf0f0f0f0, 0x80ffffff, 0x07f77f0f, 0xdeadbeef, 0x0fffff00, 0x0ff0, 0xff, 0x00]; for (var i in masks) { var rhs = masks[i]; var and = Word32And(rhs); for (var lhs = -2147483648; lhs < 2147483648; lhs += 3999773) { assertEquals(lhs & rhs, and(lhs)); } }