Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1 | // Copyright 2015 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | var stdlib = this; |
| 6 | var foreign = {}; |
| 7 | var heap = new ArrayBuffer(64 * 1024); |
| 8 | |
| 9 | |
| 10 | var pm1 = (function(stdlib, foreign, heap) { |
| 11 | "use asm"; |
| 12 | var HEAP8 = new stdlib.Int8Array(heap); |
| 13 | const MASK1 = 1023; |
| 14 | function load1(i) { |
| 15 | i = i|0; |
| 16 | var j = 0; |
| 17 | j = HEAP8[(i & MASK1)]|0; |
| 18 | return j|0; |
| 19 | } |
| 20 | function store1(i, j) { |
| 21 | i = i|0; |
| 22 | j = j|0; |
| 23 | HEAP8[(i & MASK1)] = j; |
| 24 | } |
| 25 | return {load1: load1, store1: store1}; |
| 26 | })(stdlib, foreign, heap); |
| 27 | |
| 28 | assertEquals(0, pm1.load1(0)); |
| 29 | assertEquals(0, pm1.load1(1025)); |
| 30 | pm1.store1(0, 1); |
| 31 | pm1.store1(1025, 127); |
| 32 | assertEquals(1, pm1.load1(0)); |
| 33 | assertEquals(1, pm1.load1(1024)); |
| 34 | assertEquals(127, pm1.load1(1)); |
| 35 | assertEquals(127, pm1.load1(1025)); |