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deps/v8/test/mjsunit/asm/pointer-masking.js
35 строк
861 B
Ben Noordhuis
deps: update v8 to 4.4.63.9
04 авг 2015, 21:56
04 авг 2015, 21:56
70d1f32
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// Copyright 2015 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 = this; var foreign = {}; var heap = new ArrayBuffer(64 * 1024); var pm1 = (function(stdlib, foreign, heap) { "use asm"; var HEAP8 = new stdlib.Int8Array(heap); const MASK1 = 1023; function load1(i) { i = i|0; var j = 0; j = HEAP8[(i & MASK1)]|0; return j|0; } function store1(i, j) { i = i|0; j = j|0; HEAP8[(i & MASK1)] = j; } return {load1: load1, store1: store1}; })(stdlib, foreign, heap); assertEquals(0, pm1.load1(0)); assertEquals(0, pm1.load1(1025)); pm1.store1(0, 1); pm1.store1(1025, 127); assertEquals(1, pm1.load1(0)); assertEquals(1, pm1.load1(1024)); assertEquals(127, pm1.load1(1)); assertEquals(127, pm1.load1(1025));