duke@435: /*
duke@435:  * Copyright 2003-2004 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: // Inline functions for memory copy and fill.
duke@435: 
duke@435: // Contains inline asm implementations
duke@435: #include "incls/_copy_pd.inline.hpp.incl"
duke@435: 
duke@435: static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) {
duke@435: #ifdef AMD64
duke@435:   julong* to = (julong*) tohw;
duke@435:   julong  v  = ((julong) value << 32) | value;
duke@435:   while (count-- > 0) {
duke@435:     *to++ = v;
duke@435:   }
duke@435: #else
duke@435:   juint* to = (juint*)tohw;
duke@435:   count *= HeapWordSize / BytesPerInt;
duke@435:   while (count-- > 0) {
duke@435:     *to++ = value;
duke@435:   }
duke@435: #endif // AMD64
duke@435: }
duke@435: 
duke@435: static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) {
duke@435:   pd_fill_to_words(tohw, count, value);
duke@435: }
duke@435: 
duke@435: static void pd_fill_to_bytes(void* to, size_t count, jubyte value) {
duke@435:   (void)memset(to, value, count);
duke@435: }
duke@435: 
duke@435: static void pd_zero_to_words(HeapWord* tohw, size_t count) {
duke@435:   pd_fill_to_words(tohw, count, 0);
duke@435: }
duke@435: 
duke@435: static void pd_zero_to_bytes(void* to, size_t count) {
duke@435:   (void)memset(to, 0, count);
duke@435: }