diff options
Diffstat (limited to 'libc/arch-x86/string/bzero.S')
| -rw-r--r-- | libc/arch-x86/string/bzero.S | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/libc/arch-x86/string/bzero.S b/libc/arch-x86/string/bzero.S deleted file mode 100644 index 2ec9c7d..0000000 --- a/libc/arch-x86/string/bzero.S +++ /dev/null @@ -1,43 +0,0 @@ -/* $OpenBSD: bzero.S,v 1.3 2005/08/07 11:30:38 espie Exp $ */ -/* - * Written by J.T. Conklin <jtc@netbsd.org>. - * Public domain. - */ - -#include <machine/asm.h> - -ENTRY(bzero) - pushl %edi - movl 8(%esp),%edi - movl 12(%esp),%edx - - cld /* set fill direction forward */ - xorl %eax,%eax /* set fill data to 0 */ - - /* - * if the string is too short, it's really not worth the overhead - * of aligning to word boundries, etc. So we jump to a plain - * unaligned set. - */ - cmpl $16,%edx - jb L1 - - movl %edi,%ecx /* compute misalignment */ - negl %ecx - andl $3,%ecx - subl %ecx,%edx - rep /* zero until word aligned */ - stosb - - movl %edx,%ecx /* zero by words */ - shrl $2,%ecx - andl $3,%edx - rep - stosl - -L1: movl %edx,%ecx /* zero remainder by bytes */ - rep - stosb - - popl %edi - ret |