| /* |
| * Copyright 2003-2004 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| * |
| */ |
| |
| // Inline functions for memory copy and fill. |
| |
| // Contains inline asm implementations |
| #include "incls/_copy_pd.inline.hpp.incl" |
| |
| static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) { |
| #ifdef AMD64 |
| julong* to = (julong*) tohw; |
| julong v = ((julong) value << 32) | value; |
| while (count-- > 0) { |
| *to++ = v; |
| } |
| #else |
| juint* to = (juint*)tohw; |
| count *= HeapWordSize / BytesPerInt; |
| while (count-- > 0) { |
| *to++ = value; |
| } |
| #endif // AMD64 |
| } |
| |
| static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) { |
| pd_fill_to_words(tohw, count, value); |
| } |
| |
| static void pd_fill_to_bytes(void* to, size_t count, jubyte value) { |
| (void)memset(to, value, count); |
| } |
| |
| static void pd_zero_to_words(HeapWord* tohw, size_t count) { |
| pd_fill_to_words(tohw, count, 0); |
| } |
| |
| static void pd_zero_to_bytes(void* to, size_t count) { |
| (void)memset(to, 0, count); |
| } |