diff options
Diffstat (limited to 'qemu/roms/qemu-palcode/memset.c')
-rw-r--r-- | qemu/roms/qemu-palcode/memset.c | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/qemu/roms/qemu-palcode/memset.c b/qemu/roms/qemu-palcode/memset.c deleted file mode 100644 index e8481dc9c..000000000 --- a/qemu/roms/qemu-palcode/memset.c +++ /dev/null @@ -1,96 +0,0 @@ -/* The standard memset function. - - Copyright (C) 2011 Richard Henderson - - This file is part of QEMU PALcode. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License or - (at your option) any later version. - - This program 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 text - of the GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; see the file COPYING. If not see - <http://www.gnu.org/licenses/>. */ - - -#include <string.h> - -void *memset(void *optr, int ival, unsigned long size) -{ - unsigned long val = ival; - void *ptr = optr; - - if (__builtin_expect (size == 0, 0)) - return optr; - - if (__builtin_expect (val != 0, 0)) - { - val = val & 0xff; - val |= val << 8; - val |= val << 16; - val |= val << 32; - } - - if (__builtin_expect ((unsigned long)ptr & 1, 0)) - { - *(char *)ptr = val; - ptr += 1; - size -= 1; - } - - if (__builtin_expect ((unsigned long)ptr & 2, 0)) - { - if (size < 2) - goto tail_1; - *(short *)ptr = val; - ptr += 2; - size -= 2; - } - - if (__builtin_expect ((unsigned long)ptr & 4, 0)) - { - if (size < 4) - goto tail_3; - *(int *)ptr = val; - ptr += 4; - size -= 4; - } - - while (size >= 8) - { - *(long *)ptr = val; - ptr += 8; - size -= 8; - } - - if (size >= 4) - { - *(int *)ptr = val; - ptr += 4; - size -= 4; - } - - tail_3: - if (size >= 2) - { - *(short *)ptr = val; - ptr += 2; - size -= 2; - } - - tail_1: - if (size > 0) - { - *(char *)ptr = val; - ptr += 1; - size -= 1; - } - - return optr; -} |