From f95a4a932476be2ba99e2fd081e8d2bc6ea12813 Mon Sep 17 00:00:00 2001 From: PikalaxALT Date: Fri, 15 Dec 2017 09:38:53 -0500 Subject: Import newlib and create makefile --- newlib/libc/machine/i386/strlen.S | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 newlib/libc/machine/i386/strlen.S (limited to 'newlib/libc/machine/i386/strlen.S') diff --git a/newlib/libc/machine/i386/strlen.S b/newlib/libc/machine/i386/strlen.S new file mode 100644 index 0000000..cae390a --- /dev/null +++ b/newlib/libc/machine/i386/strlen.S @@ -0,0 +1,34 @@ +/* + * ==================================================== + * Copyright (C) 1998 by Cygnus Solutions. All rights reserved. + * + * Permission to use, copy, modify, and distribute this + * software is freely granted, provided that this notice + * is preserved. + * ==================================================== + */ + + #include "i386mach.h" + + .global SYM (strlen) + +SYM (strlen): + + pushl ebp + movl esp,ebp + pushl edi + movl 8(ebp),edx + + cld + movl edx,edi + movl $4294967295,ecx + xor eax,eax + repnz + scasb + subl edx,edi + leal -1(edi),eax + + leal -4(ebp),esp + popl edi + leave + ret -- cgit v1.2.3