diff options
Diffstat (limited to 'contrib/syslinux/latest/com32/lib/mempcpy.S')
| -rw-r--r-- | contrib/syslinux/latest/com32/lib/mempcpy.S | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/contrib/syslinux/latest/com32/lib/mempcpy.S b/contrib/syslinux/latest/com32/lib/mempcpy.S deleted file mode 100644 index cad7b98..0000000 --- a/contrib/syslinux/latest/com32/lib/mempcpy.S +++ /dev/null @@ -1,85 +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. - * - * ----------------------------------------------------------------------- */ - -/* - * mempcpy.S - * - * Reasonably efficient mempcpy, using aligned transfers at least - * for the destination operand. - */ - - .text - .globl mempcpy - .type mempcpy, @function -mempcpy: - jecxz 1f - - pushl %esi - pushl %edi - - movl %eax,%edi - movl %edx,%esi - - /* Initial alignment */ - movl %edi,%edx - shrl $1,%edx - jnc 11f - movsb - decl %ecx -11: - movb %cl,%al - cmpl $2,%ecx - jb 13f - - shrl $1,%edx - jnc 12f - movsw - subl $2,%ecx -12: - /* Bulk transfer */ - movb %cl,%al - shrl $2,%ecx - rep; movsl - - /* Final alignment */ - testb $2,%al - jz 14f - movsw -13: -14: - testb $1,%al - jz 15f - movsb -15: - - movl %edi,%eax /* Return value */ - popl %edi - popl %esi -1: - ret - - .size mempcpy, .-mempcpy |