19418d76df
BUG=chromium:439743 LOG=y TEST=mjsunit R=svenpanne@chromium.org Review URL: https://codereview.chromium.org/733893008 Cr-Commit-Position: refs/heads/master@{#25731}
43 lines
969 B
JavaScript
43 lines
969 B
JavaScript
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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var stdlib = this;
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var buffer = new ArrayBuffer(64 * 1024);
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var foreign = {}
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var m = (function Module(stdlib, foreign, heap) {
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"use asm";
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var MEM32 = new stdlib.Float32Array(heap);
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function load(i) {
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i = i|0;
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i = +MEM32[i >> 2];
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return i;
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}
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function store(i, v) {
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i = i|0;
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v = +v;
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MEM32[i >> 2] = v;
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}
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function load8(i) {
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i = i|0;
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i = +MEM32[i + 8 >> 2];
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return i;
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}
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function store8(i, v) {
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i = i|0;
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v = +v;
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MEM32[i + 8 >> 2] = v;
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}
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return { load: load, store: store, load8: load8, store8: store8 };
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})(stdlib, foreign, buffer);
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assertEquals(NaN, m.load(-8));
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assertEquals(NaN, m.load8(-16));
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m.store(0, 42.0);
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assertEquals(42.0, m.load8(-8));
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m.store8(-8, 99.0);
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assertEquals(99.0, m.load(0));
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assertEquals(99.0, m.load8(-8));
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