1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --harmony-sharedarraybuffer
function Module(stdlib, foreign, heap) {
"use asm";
var MEM8 = new stdlib.Int8Array(heap);
var MEM16 = new stdlib.Int16Array(heap);
var MEM32 = new stdlib.Int32Array(heap);
var MEMU8 = new stdlib.Uint8Array(heap);
var MEMU16 = new stdlib.Uint16Array(heap);
var MEMU32 = new stdlib.Uint32Array(heap);
var and = stdlib.Atomics.and;
var fround = stdlib.Math.fround;
function andi8(i, x) {
i = i | 0;
x = x | 0;
return and(MEM8, i, x)|0;
}
function andi16(i, x) {
i = i | 0;
x = x | 0;
return and(MEM16, i, x)|0;
}
function andi32(i, x) {
i = i | 0;
x = x | 0;
return and(MEM32, i, x)|0;
}
function andu8(i, x) {
i = i | 0;
x = x >>> 0;
return and(MEMU8, i, x)>>>0;
}
function andu16(i, x) {
i = i | 0;
x = x >>> 0;
return and(MEMU16, i, x)>>>0;
}
function andu32(i, x) {
i = i | 0;
x = x >>> 0;
return and(MEMU32, i, x)>>>0;
}
return {
andi8: andi8,
andi16: andi16,
andi32: andi32,
andu8: andu8,
andu16: andu16,
andu32: andu32,
};
}
var sab = new SharedArrayBuffer(16);
var m = Module(this, {}, sab);
function clearArray() {
var ui8 = new Uint8Array(sab);
for (var i = 0; i < sab.byteLength; ++i) {
ui8[i] = 0;
}
}
function testElementType(taConstr, f) {
clearArray();
var ta = new taConstr(sab);
var name = Object.prototype.toString.call(ta);
ta[0] = 0x7f;
assertEquals(0x7f, f(0, 0xf), name);
assertEquals(0xf, ta[0]);
assertEquals(0xf, f(0, 0x19), name);
assertEquals(0x9, ta[0]);
// out of bounds
assertEquals(0, f(-1, 0), name);
assertEquals(0, f(ta.length, 0), name);
}
testElementType(Int8Array, m.andi8);
testElementType(Int16Array, m.andi16);
testElementType(Int32Array, m.andi32);
testElementType(Uint8Array, m.andu8);
testElementType(Uint16Array, m.andu16);
testElementType(Uint32Array, m.andu32);
|
