46 lines
1.1 KiB
JavaScript
46 lines
1.1 KiB
JavaScript
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// 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 sext8 = (function Module(stdlib, foreign, heap) {
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"use asm";
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function sext8(i) {
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i = i|0;
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i = i << 24 >> 24;
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return i|0;
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}
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return { sext8: sext8 };
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})(stdlib, foreign, buffer).sext8;
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assertEquals(-128, sext8(128));
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assertEquals(-1, sext8(-1));
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assertEquals(-1, sext8(255));
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assertEquals(0, sext8(0));
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assertEquals(0, sext8(256));
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assertEquals(42, sext8(42));
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assertEquals(127, sext8(127));
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var sext16 = (function Module(stdlib, foreign, heap) {
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"use asm";
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function sext16(i) {
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i = i|0;
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i = i << 16 >> 16;
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return i|0;
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}
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return { sext16: sext16 };
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})(stdlib, foreign, buffer).sext16;
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assertEquals(-32768, sext16(32768));
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assertEquals(-1, sext16(-1));
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assertEquals(-1, sext16(65535));
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assertEquals(0, sext16(0));
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assertEquals(0, sext16(65536));
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assertEquals(128, sext16(128));
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assertEquals(32767, sext16(32767));
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