diff options
Diffstat (limited to 'newlib/libc/machine/i386/strlen.S')
| -rw-r--r-- | newlib/libc/machine/i386/strlen.S | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/newlib/libc/machine/i386/strlen.S b/newlib/libc/machine/i386/strlen.S new file mode 100644 index 00000000000..cae390aceda --- /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 |