Add support for ft32 to newlib.

1 files changed, 32 insertions, 0 deletions

diff --git a/newlib/libc/machine/ft32/memcpy.S b/newlib/libc/machine/ft32/memcpy.S
new file mode 100644
index 000000000..b29179b78
--- /dev/null
+++ b/newlib/libc/machine/ft32/memcpy.S
@@ -0,0 +1,32 @@
+/* A memcpy.c for FT32
+   Copyright (C) 2014 FTDI (support@ftdichip.com)
+
+   The authors hereby grant permission to use, copy, modify, distribute,
+   and license this software and its documentation for any purpose, provided
+   that existing copyright notices are retained in all copies and that this
+   notice is included verbatim in any distributions. No written agreement,
+   license, or royalty fee is required for any of the authorized uses.
+   Modifications to this software may be copyrighted by their authors
+   and need not follow the licensing terms described here, provided that
+   the new terms are clearly indicated on the first page of each file where
+   they apply.  */
+
+        .text
+        .global        memcpy
+        .type        memcpy,@function
+memcpy:
+        ldk    $r3,32764
+1:
+        cmp    $r2,$r3
+        jmpc   lte,2f
+        memcpy.b $r0,$r1,$r3
+        add    $r0,$r0,$r3
+        add    $r1,$r1,$r3
+        sub    $r2,$r2,$r3
+        jmp    1b
+2:
+        memcpy.b $r0,$r1,$r2
+        return
+.Lend2:
+        .size        memcpy,.Lend2-memcpy
+