diff options
Diffstat (limited to 'MdePkg/Library/CompilerIntrinsicsLib/Arm/ashrdi3.S')
| -rw-r--r-- | MdePkg/Library/CompilerIntrinsicsLib/Arm/ashrdi3.S | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/MdePkg/Library/CompilerIntrinsicsLib/Arm/ashrdi3.S b/MdePkg/Library/CompilerIntrinsicsLib/Arm/ashrdi3.S new file mode 100644 index 0000000000..855497e7d1 --- /dev/null +++ b/MdePkg/Library/CompilerIntrinsicsLib/Arm/ashrdi3.S @@ -0,0 +1,28 @@ +#------------------------------------------------------------------------------
+#
+# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#------------------------------------------------------------------------------
+
+#include <AsmMacroLib.h>
+
+ASM_FUNC(__ashrdi3)
+ cmp r2, #31
+ bls L2
+ cmp r2, #63
+ subls r2, r2, #32
+ mov ip, r1, asr #31
+ movls r2, r1, asr r2
+ movhi r2, ip
+ mov r0, r2
+ mov r1, ip
+ bx lr
+L2:
+ cmp r2, #0
+ rsbne r3, r2, #32
+ movne r3, r1, asl r3
+ movne r1, r1, asr r2
+ orrne r0, r3, r0, lsr r2
+ bx lr
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