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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 function Module(stdlib, foreign, heap) { | 5 function Module(stdlib, foreign, heap) { |
6 "use asm"; | 6 "use asm"; |
7 var MEM16 = new stdlib.Int16Array(heap); | 7 var MEM16 = new stdlib.Int16Array(heap); |
8 function load(i) { | 8 function load(i) { |
9 i = i|0; | 9 i = i|0; |
10 i = MEM16[i >> 1] | 0; | 10 i = MEM16[i >> 1] | 0; |
11 return i; | 11 return i | 0; |
12 } | 12 } |
13 function loadm1() { | 13 function loadm1() { |
14 return MEM16[-1] | 0; | 14 var i = -1 << 1; |
| 15 return MEM16[i >> 1] | 0; |
| 16 return 0; |
15 } | 17 } |
16 function store(i, v) { | 18 function store(i, v) { |
17 i = i|0; | 19 i = i | 0; |
18 v = v|0; | 20 v = v | 0; |
19 MEM16[i >> 1] = v; | 21 MEM16[i >> 1] = v; |
20 } | 22 } |
21 function storem1(v) { | 23 function storem1(v) { |
22 v = v|0; | 24 v = v | 0; |
23 MEM16[-1] = v; | 25 var i = -1 << 1; |
| 26 MEM16[i >> 1] = v; |
24 } | 27 } |
25 return {load: load, loadm1: loadm1, store: store, storem1: storem1}; | 28 return {load: load, loadm1: loadm1, store: store, storem1: storem1}; |
26 } | 29 } |
27 | 30 |
28 var m = Module(this, {}, new ArrayBuffer(2)); | 31 var m = Module(this, {}, new ArrayBuffer(2)); |
29 | 32 |
30 m.store(-1000, 4); | 33 m.store(-1000, 4); |
31 assertEquals(0, m.load(-1000)); | 34 assertEquals(0, m.load(-1000)); |
32 assertEquals(0, m.loadm1()); | 35 assertEquals(0, m.loadm1()); |
33 m.storem1(1); | 36 m.storem1(1); |
34 assertEquals(0, m.loadm1()); | 37 assertEquals(0, m.loadm1()); |
35 m.store(0, 32767); | 38 m.store(0, 32767); |
36 for (var i = 1; i < 64; ++i) { | 39 for (var i = 1; i < 64; ++i) { |
37 m.store(i * 2 * 32 * 1024, i); | 40 m.store(i * 2 * 32 * 1024, i); |
38 } | 41 } |
39 assertEquals(32767, m.load(0)); | 42 assertEquals(32767, m.load(0)); |
40 for (var i = 1; i < 64; ++i) { | 43 for (var i = 1; i < 64; ++i) { |
41 assertEquals(0, m.load(i * 2 * 32 * 1024)); | 44 assertEquals(0, m.load(i * 2 * 32 * 1024)); |
42 } | 45 } |
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