1 files changed, 46 insertions, 0 deletions
diff --git a/ports/sysdeps/aarch64/fpu/fesetround.c b/ports/sysdeps/aarch64/fpu/fesetround.c
new file mode 100644
index 0000000000..ef142b3a46
--- /dev/null
+++ b/ports/sysdeps/aarch64/fpu/fesetround.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 1997-2012 Free Software Foundation, Inc.
+
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 2.1 of the
+   License, or (at your option) any later version.
+
+   The GNU C 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+fesetround (int round)
+{
+  fpu_control_t fpcr;
+
+  switch (round)
+    {
+    case FE_TONEAREST:
+    case FE_UPWARD:
+    case FE_DOWNWARD:
+    case FE_TOWARDZERO:
+      _FPU_GETCW (fpcr);
+      fpcr = (fpcr & ~FE_TOWARDZERO) | round;
+
+      _FPU_SETCW (fpcr);
+      return 0;
+
+    default:
+      return 1;
+    }
+
+  return 1;
+}
+
+libm_hidden_def (fesetround)