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diff --git a/sysdeps/s390/s390-32/memchr.S b/sysdeps/s390/s390-32/memchr.S
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+/* Search a character in a block of memory. For IBM S390
+ Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+ Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+/*
+ * R2 = address to memory area
+ * R3 = character to find
+ * R4 = number of bytes to search
+ */
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+ .text
+ENTRY(memchr)
+ lhi %r0,0xff
+ nr %r0,%r3
+ lr %r1,%r2
+ la %r2,0(%r4,%r1)
+0: srst %r2,%r1
+ jo 0b
+ brc 13,1f
+ slr %r2,%r2
+1: br %r14
+END(memchr)