1 files changed, 46 insertions, 0 deletions
diff --git a/device/lib/_fs2slonglong.c b/device/lib/_fs2slonglong.c
new file mode 100644
index 000000000..8e45209b1
--- /dev/null
+++ b/device/lib/_fs2slonglong.c
@@ -0,0 +1,46 @@
+/*-------------------------------------------------------------------------
+   _fs2slong.c - Floating point library in optimized assembly for 8051
+
+   Copyright (c) 2004, Paul Stoffregen, paul@pjrc.com
+
+   This library 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; either version 2, or (at your option) any
+   later version.
+
+   This 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this library; see the file COPYING. If not, write to the
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
+   MA 02110-1301, USA.
+
+   As a special exception, if you link this library with other files,
+   some of which are compiled with SDCC, to produce an executable,
+   this library does not by itself cause the resulting executable to
+   be covered by the GNU General Public License. This exception does
+   not however invalidate any other reasons why the executable file
+   might be covered by the GNU General Public License.
+-------------------------------------------------------------------------*/
+
+
+#define __SDCC_FLOAT_LIB
+#include <float.h>
+
+/* convert float to signed long long */
+signed long long __fs2slonglong (float f) __SDCC_FLOAT_NONBANKED
+{
+
+  if (!f)
+    return 0;
+
+  if (f<0) {
+    return -__fs2ulonglong(-f);
+  } else {
+    return __fs2ulonglong(f);
+  }
+}
+