1 files changed, 36 insertions, 0 deletions
diff --git a/newlib/libc/machine/m68k/strcpy.c b/newlib/libc/machine/m68k/strcpy.c
new file mode 100644
index 00000000000..ccc914193d7
--- /dev/null
+++ b/newlib/libc/machine/m68k/strcpy.c
@@ -0,0 +1,36 @@
+/*
+ *  C library strcpy routine
+ *
+ *  This routine has been optimized for the CPU32+.
+ *  It should run on all 68k machines.
+ *
+ *  W. Eric Norum
+ *  Saskatchewan Accelerator Laboratory
+ *  University of Saskatchewan
+ *  Saskatoon, Saskatchewan, CANADA
+ *  eric@skatter.usask.ca
+ */
+
+#include <string.h>
+
+/*
+ * Copy bytes using CPU32+ loop mode if possible
+ */
+
+char *
+strcpy (char *to, const char *from)
+{
+	char *pto = to;
+	unsigned int n = 0xFFFF;
+
+	asm volatile ("1:\n"
+	     "\tmove.b (%0)+,(%1)+\n"
+#if defined(__mcpu32__)
+	     "\tdbeq %2,1b\n"
+#endif
+	     "\tbne.b 1b\n" :
+		"=a" (from), "=a" (pto), "=d" (n) :
+		 "0" (from),  "1" (pto), "2" (n) :
+		 "cc", "memory");
+	return to;
+}