Adding support for BeagleBoard.

[mirror_edk2.git] / ArmPkg / Library / CompilerIntrinsicsLib / Arm / llsl.asm

diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/llsl.asm b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/llsl.asm
new file mode 100644 (file)
index 0000000..745b984
--- /dev/null
+++ b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/llsl.asm
@@ -0,0 +1,43 @@
+//------------------------------------------------------------------------------ 
+//
+// Copyright (c) 2008-2009 Apple Inc. All rights reserved.
+//
+// All rights reserved. This program and the accompanying materials
+// are licensed and made available under the terms and conditions of the BSD License
+// which accompanies this distribution.  The full text of the license may be found at
+// http://opensource.org/licenses/bsd-license.php
+//
+// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+//
+//------------------------------------------------------------------------------
+
+
+    EXPORT  __aeabi_llsl
+
+    AREA    Math, CODE, READONLY
+
+;
+;VOID
+;EFIAPI
+;__aeabi_llsl (
+; IN  VOID    *Destination,
+; IN  VOID    *Source,
+; IN  UINT32  Size
+; );
+;
+
+__aeabi_llsl
+    SUBS     r3,r2,#0x20
+    BPL      {pc} + 0x18  ; 0x1c
+    RSB      r3,r2,#0x20
+    LSL      r1,r1,r2
+    ORR      r1,r1,r0,LSR r3
+    LSL      r0,r0,r2
+    BX       lr
+    LSL      r1,r0,r3
+    MOV      r0,#0
+    BX       lr
+
+    END
+