1 files changed, 41 insertions, 0 deletions

diff --git a/arch/frv/lib/__ashrdi3.S b/arch/frv/lib/__ashrdi3.S
new file mode 100644
index 000000000000..5742665bfd29
--- /dev/null
+++ b/arch/frv/lib/__ashrdi3.S
@@ -0,0 +1,41 @@
+/* __ashrdi3.S: 64-bit arithmetic shift right
+ *
+ * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.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; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+        .text
+        .p2align        4
+
+###############################################################################
+#
+# signed long long __ashrdi3(signed long long value [GR8:GR9], unsigned by [GR10])
+#
+###############################################################################
+        .globl          __ashrdi3
+        .type           __ashrdi3,@function
+__ashrdi3:
+        andicc.p        gr10,#63,gr10,icc0
+        setlos          #32,gr5
+        andicc.p        gr10,#32,gr0,icc1
+        beqlr           icc0,#0
+        setlos.p        #31,gr6
+        ckeq            icc1,cc4                        ; cc4 is true if 0<N<32
+
+        # deal with a shift in the range 1<=N<=31
+        csrl.p          gr9,gr10,gr9    ,cc4,#1         ; LSW >>= N
+        csub            gr5,gr10,gr5    ,cc4,#1         ; M = 32 - N
+        csll.p          gr8,gr5,gr4     ,cc4,#1
+        csra            gr8,gr10,gr8    ,cc4,#1         ; MSW >>= N
+        cor.p           gr4,gr9,gr9     ,cc4,#1         ; LSW |= MSW << M
+
+        # deal with a shift in the range 32<=N<=63
+        csra            gr8,gr10,gr9    ,cc4,#0         ; LSW = MSW >> (N & 31 [implicit AND])
+        csra.p          gr8,gr6,gr8     ,cc4,#0         ; MSW >>= 31
+        bralr
+        .size           __ashrdi3, .-__ashrdi3