Mercurial > hg > truffle
comparison src/cpu/x86/vm/copy_x86.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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-1:000000000000 | 0:a61af66fc99e |
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1 /* | |
2 * Copyright 2003-2004 Sun Microsystems, Inc. All Rights Reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 // Inline functions for memory copy and fill. | |
26 | |
27 // Contains inline asm implementations | |
28 #include "incls/_copy_pd.inline.hpp.incl" | |
29 | |
30 static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) { | |
31 #ifdef AMD64 | |
32 julong* to = (julong*) tohw; | |
33 julong v = ((julong) value << 32) | value; | |
34 while (count-- > 0) { | |
35 *to++ = v; | |
36 } | |
37 #else | |
38 juint* to = (juint*)tohw; | |
39 count *= HeapWordSize / BytesPerInt; | |
40 while (count-- > 0) { | |
41 *to++ = value; | |
42 } | |
43 #endif // AMD64 | |
44 } | |
45 | |
46 static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) { | |
47 pd_fill_to_words(tohw, count, value); | |
48 } | |
49 | |
50 static void pd_fill_to_bytes(void* to, size_t count, jubyte value) { | |
51 (void)memset(to, value, count); | |
52 } | |
53 | |
54 static void pd_zero_to_words(HeapWord* tohw, size_t count) { | |
55 pd_fill_to_words(tohw, count, 0); | |
56 } | |
57 | |
58 static void pd_zero_to_bytes(void* to, size_t count) { | |
59 (void)memset(to, 0, count); | |
60 } |