Mercurial > jdk8-mips64-public > hotspot / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/cpu/x86/vm/copy_x86.hpp	Sat Dec 01 00:00:00 2007 +0000
     1.3 @@ -0,0 +1,60 @@
     1.4 +/*
     1.5 + * Copyright 2003-2004 Sun Microsystems, Inc.  All Rights Reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
    1.24 + * have any questions.
    1.25 + *
    1.26 + */
    1.27 +
    1.28 +// Inline functions for memory copy and fill.
    1.29 +
    1.30 +// Contains inline asm implementations
    1.31 +#include "incls/_copy_pd.inline.hpp.incl"
    1.32 +
    1.33 +static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) {
    1.34 +#ifdef AMD64
    1.35 +  julong* to = (julong*) tohw;
    1.36 +  julong  v  = ((julong) value << 32) | value;
    1.37 +  while (count-- > 0) {
    1.38 +    *to++ = v;
    1.39 +  }
    1.40 +#else
    1.41 +  juint* to = (juint*)tohw;
    1.42 +  count *= HeapWordSize / BytesPerInt;
    1.43 +  while (count-- > 0) {
    1.44 +    *to++ = value;
    1.45 +  }
    1.46 +#endif // AMD64
    1.47 +}
    1.48 +
    1.49 +static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) {
    1.50 +  pd_fill_to_words(tohw, count, value);
    1.51 +}
    1.52 +
    1.53 +static void pd_fill_to_bytes(void* to, size_t count, jubyte value) {
    1.54 +  (void)memset(to, value, count);
    1.55 +}
    1.56 +
    1.57 +static void pd_zero_to_words(HeapWord* tohw, size_t count) {
    1.58 +  pd_fill_to_words(tohw, count, 0);
    1.59 +}
    1.60 +
    1.61 +static void pd_zero_to_bytes(void* to, size_t count) {
    1.62 +  (void)memset(to, 0, count);
    1.63 +}