From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Wed, 5 Aug 2015 17:04:01 -0300
Subject: Initial import

---
 arch/frv/lib/__ashldi3.S | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 arch/frv/lib/__ashldi3.S

(limited to 'arch/frv/lib/__ashldi3.S')

diff --git a/arch/frv/lib/__ashldi3.S b/arch/frv/lib/__ashldi3.S
new file mode 100644
index 000000000..db5b6dc37
--- /dev/null
+++ b/arch/frv/lib/__ashldi3.S
@@ -0,0 +1,40 @@
+/* __ashldi3.S:	64-bit arithmetic shift left
+ *
+ * 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
+
+###############################################################################
+#
+# unsigned long long __ashldi3(unsigned long long value [GR8:GR9], unsigned by [GR10])
+#
+###############################################################################
+        .globl		__ashldi3
+        .type		__ashldi3,@function
+__ashldi3:
+	andicc.p	gr10,#63,gr10,icc0
+	setlos		#32,gr5
+	andicc.p	gr10,#32,gr0,icc1
+	beqlr		icc0,#0
+	ckeq		icc1,cc4			; cc4 is true if 0<N<32
+
+	# deal with a shift in the range 1<=N<=31
+	csll.p		gr8,gr10,gr8	,cc4,#1		; MSW <<= N
+	csub		gr5,gr10,gr5	,cc4,#1		; M = 32 - N
+	csrl.p		gr9,gr5,gr4	,cc4,#1
+	csll		gr9,gr10,gr9	,cc4,#1		; LSW <<= N
+	cor.p		gr4,gr8,gr8	,cc4,#1		; MSW |= LSW >> M
+
+	# deal with a shift in the range 32<=N<=63
+	csll		gr9,gr10,gr8	,cc4,#0		; MSW = LSW << (N & 31 [implicit AND])
+	cor.p		gr0,gr0,gr9	,cc4,#0		; LSW = 0
+	bralr
+	.size		__ashldi3, .-__ashldi3
-- 
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