diff options
Diffstat (limited to 'contrib/syslinux/latest/memdisk/memset.S')
| -rw-r--r-- | contrib/syslinux/latest/memdisk/memset.S | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/contrib/syslinux/latest/memdisk/memset.S b/contrib/syslinux/latest/memdisk/memset.S deleted file mode 100644 index e641415..0000000 --- a/contrib/syslinux/latest/memdisk/memset.S +++ /dev/null @@ -1,86 +0,0 @@ -/* ----------------------------------------------------------------------- * - * - * Copyright 2008 H. Peter Anvin - All Rights Reserved - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, - * copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom - * the Software is furnished to do so, subject to the following - * conditions: - * - * The above copyright notice and this permission notice shall - * be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES - * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT - * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * ----------------------------------------------------------------------- */ - -/* - * memset.S - * - * Reasonably efficient memset, using aligned transfers at least - * for the destination operand. - */ - - .globl memset - .type memset,@function - .text -memset: - jecxz 6f - - pushl %edi - pushl %ebx - pushl %eax /* Return value */ - - movl %eax,%edi - movb %dl,%dh - movzwl %dx,%eax - shll $16,%edx - orl %edx,%eax - - /* Initial alignment */ - movl %edi,%edx - shrl $1,%edx - jnc 1f - stosb - decl %ecx -1: - movb %cl,%bl - cmpl $2,%ecx - jb 3f - shrl $1,%edx - jnc 2f - stosw - subl $2,%ecx -2: - /* Bulk transfer */ - movb %cl,%bl - shrl $2,%ecx - rep; stosl - - testb $2,%bl - jz 4f - stosw -3: -4: - testb $1,%bl - jz 5f - stosb -5: - popl %eax /* Return value */ - popl %ebx - popl %edi -6: - ret - - .size memset, .-memset |