altos: oops -- forgot to add the cc1111 string code

This is required for all cc1111 builds now; it provides xdata string
functions.

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/src/cc1111/ao_string.c b/src/cc1111/ao_string.c
new file mode 100644 (file)
index 0000000..daa5c14
--- /dev/null
+++ b/src/cc1111/ao_string.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright © 2011 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#include "ao.h"
+
+void
+_ao_xmemcpy(__xdata uint8_t *dst, __xdata uint8_t *src, uint8_t count)
+{
+       while (count--)
+               *dst++ = *src++;
+}
+
+void
+_ao_xmemset(__xdata uint8_t *dst, uint8_t v, uint8_t count)
+{
+       while (count--)
+               *dst++ = v;
+}
+
+int8_t
+_ao_xmemcmp(__xdata uint8_t *a, __xdata uint8_t *b, uint8_t count)
+{
+       while (count--) {
+               int8_t  d = *a++ - *b++;
+               if (d)
+                       return d;
+       }
+       return 0;
+}