diff options
Diffstat (limited to 'sysdeps/i386/stpncpy.S')
| -rw-r--r-- | sysdeps/i386/stpncpy.S | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/sysdeps/i386/stpncpy.S b/sysdeps/i386/stpncpy.S index e0213082f8..cd1a84558f 100644 --- a/sysdeps/i386/stpncpy.S +++ b/sysdeps/i386/stpncpy.S @@ -1,7 +1,7 @@ /* copy no more then N bytes from SRC to DEST, returning the address of the terminating '\0' in DEST. For Intel 80x86, x>=3. - Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc. + Copyright (C) 1994, 1995, 1996, 1997, 2000 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu> Some bug fixes by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au> @@ -26,22 +26,23 @@ #include <sysdep.h> #include "asm-syntax.h" +#include "bp-asm.h" -/* - INPUT PARAMETERS: - dest (sp + 4) - src (sp + 8) - maxlen (sp + 12) -*/ +#define PARMS LINKAGE+4 /* space for 1 saved reg */ +#define RTN PARMS +#define DEST RTN+RTN_SIZE +#define SRC DEST+PTR_SIZE +#define LEN SRC+PTR_SIZE .text ENTRY (__stpncpy) + ENTER pushl %esi - movl 8(%esp), %eax /* load destination pointer */ - movl 12(%esp), %esi /* load source pointer */ - movl 16(%esp), %ecx /* load maximal length */ + movl DEST(%esp), %eax + movl SRC(%esp), %esi + movl LEN(%esp), %ecx subl %eax, %esi /* magic: reduce number of loop variants to one using addressing mode */ @@ -138,7 +139,8 @@ L(3): decl %ecx /* all bytes written? */ L(9): popl %esi /* restore saved register content */ - ret + LEAVE + RET_PTR END (__stpncpy) weak_alias (__stpncpy, stpncpy) |