Import newlib and create makefile

1 files changed, 48 insertions, 0 deletions

diff --git a/newlib/libc/machine/hppa/memchr.S b/newlib/libc/machine/hppa/memchr.S
new file mode 100644
index 0000000..1cca3e5
--- /dev/null
+++ b/newlib/libc/machine/hppa/memchr.S
@@ -0,0 +1,48 @@
+/*
+ *  (c) Copyright 1986 HEWLETT-PACKARD COMPANY
+ *
+ *  To anyone who acknowledges that this file is provided "AS IS"
+ *  without any express or implied warranty:
+ *      permission to use, copy, modify, and distribute this file
+ *  for any purpose is hereby granted without fee, provided that
+ *  the above copyright notice and this notice appears in all
+ *  copies, and that the name of Hewlett-Packard Company not be
+ *  used in advertising or publicity pertaining to distribution
+ *  of the software without specific, written prior permission.
+ *  Hewlett-Packard Company makes no representations about the
+ *  suitability of this software for any purpose.
+ */
+
+/* SPECTRUM_ID: @(#)memchr.s	37.4     86/04/23 */
+/*
+ * memchr(s, c, n)
+ *
+ * returns pointer to first occurrence of char c
+ * in first n characters of memory area s,
+ * or null if c does not occur.
+ */
+
+#include "DEFS.h"
+
+#define FROM	arg0
+#define CHAR	arg1
+#define COUNT	arg2
+#define TEMP1	r19
+
+ENTRY(memchr)
+	comb,<=	COUNT,r0,memchrexit	/* return if count is zero */
+	copy	r0,ret0			/* null if c not found in n chars */
+	depi	0,23,24,CHAR		/* make char unsigned */
+
+	ldbs,ma	1(FROM),TEMP1
+memchrloop:
+	comb,=,n	TEMP1,CHAR,memchrequal
+	addib,<>	-1,COUNT,memchrloop
+	ldbs,ma	1(FROM),TEMP1
+	b,n	memchrexit
+
+memchrequal:
+	ldo	-1(FROM),ret0
+
+memchrexit:
+EXIT(memchr)