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      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
      3 // found in the LICENSE file.
      4 
      5 function Module(stdlib, foreign, heap) {
      6   "use asm";
      7   var MEM32 = new stdlib.Int32Array(heap);
      8   function load(i) {
      9     i = i|0;
     10     i = MEM32[i >> 2] | 0;
     11     return i;
     12   }
     13   function store(i, v) {
     14     i = i|0;
     15     v = v|0;
     16     MEM32[i >> 2] = v;
     17   }
     18   return { load: load, store: store };
     19 }
     20 
     21 var m = Module(this, {}, new ArrayBuffer(1024));
     22 
     23 m.store(0, 0x12345678);
     24 m.store(4, -1);
     25 m.store(8, -1);
     26 for (var i = 0; i < 4; ++i) {
     27   assertEquals(0x12345678, m.load(i));
     28 }
     29 for (var i = 4; i < 12; ++i) {
     30   assertEquals(-1, m.load(i));
     31 }
     32 for (var j = 4; j < 8; ++j) {
     33   m.store(j, 0x11223344);
     34   for (var i = 0; i < 4; ++i) {
     35     assertEquals(0x12345678, m.load(i));
     36   }
     37   for (var i = 4; i < 8; ++i) {
     38     assertEquals(0x11223344, m.load(i));
     39   }
     40   for (var i = 8; i < 12; ++i) {
     41     assertEquals(-1, m.load(i));
     42   }
     43 }
     44