diff options
Diffstat (limited to 'MdePkg/Library/CompilerIntrinsicsLib/Arm/lasr.S')
| -rw-r--r-- | MdePkg/Library/CompilerIntrinsicsLib/Arm/lasr.S | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/MdePkg/Library/CompilerIntrinsicsLib/Arm/lasr.S b/MdePkg/Library/CompilerIntrinsicsLib/Arm/lasr.S new file mode 100644 index 0000000000..27201de4be --- /dev/null +++ b/MdePkg/Library/CompilerIntrinsicsLib/Arm/lasr.S @@ -0,0 +1,30 @@ +#------------------------------------------------------------------------------
+#
+# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#------------------------------------------------------------------------------
+
+#include <AsmMacroLib.h>
+
+#
+#UINT64
+#EFIAPI
+#__aeabi_lasr (
+# IN UINT64 Value
+# IN UINT32 Shift
+# );
+#
+ASM_FUNC(__aeabi_lasr)
+ subs r3,r2,#0x20
+ bpl L_Test
+ rsb r3,r2,#0x20
+ lsr r0,r0,r2
+ orr r0,r0,r1,LSL r3
+ asr r1,r1,r2
+ bx lr
+L_Test:
+ asr r0,r1,r3
+ asr r1,r1,#31
+ bx lr
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