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| author | Pete Batard <pete@akeo.ie> | 2019-05-13 09:54:16 +0100 |
|---|---|---|
| committer | Leif Lindholm <leif.lindholm@linaro.org> | 2019-05-13 16:54:38 +0100 |
| commit | 96ef5a8e30a8da33eaab09f13cc8d752342717a5 (patch) | |
| tree | 680b59b1ad9b8a71b1df6f54ef64cd1936507e12 /ArmPkg/Library/CompilerIntrinsicsLib/Arm | |
| parent | d039044be43d69f4f2775ed0b30e952aa0ee4c00 (diff) | |
| download | edk2-96ef5a8e30a8da33eaab09f13cc8d752342717a5.tar.gz edk2-96ef5a8e30a8da33eaab09f13cc8d752342717a5.tar.bz2 edk2-96ef5a8e30a8da33eaab09f13cc8d752342717a5.zip | |
ArmPkg/CompilerIntrinsicsLib: Add uread, uwrite GCC assembly sources
The new sources are a copy of the RVCT version.
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Pete Batard <pete@akeo.ie>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Diffstat (limited to 'ArmPkg/Library/CompilerIntrinsicsLib/Arm')
| -rw-r--r-- | ArmPkg/Library/CompilerIntrinsicsLib/Arm/uread.S | 54 | ||||
| -rw-r--r-- | ArmPkg/Library/CompilerIntrinsicsLib/Arm/uwrite.S | 53 |
2 files changed, 107 insertions, 0 deletions
diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/uread.S b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/uread.S new file mode 100644 index 0000000000..e8a1dbad86 --- /dev/null +++ b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/uread.S @@ -0,0 +1,54 @@ +#------------------------------------------------------------------------------
+#
+# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#------------------------------------------------------------------------------
+
+#include <AsmMacroIoLib.h>
+
+#
+#UINT32
+#EFIAPI
+#__aeabi_uread4 (
+# IN VOID *Pointer
+# );
+#
+ASM_FUNC(__aeabi_uread4)
+ ldrb r1, [r0]
+ ldrb r2, [r0, #1]
+ ldrb r3, [r0, #2]
+ ldrb r0, [r0, #3]
+ orr r1, r1, r2, lsl #8
+ orr r1, r1, r3, lsl #16
+ orr r0, r1, r0, lsl #24
+ bx lr
+
+#
+#UINT64
+#EFIAPI
+#__aeabi_uread8 (
+# IN VOID *Pointer
+# );
+#
+ASM_FUNC(__aeabi_uread8)
+ mov r3, r0
+
+ ldrb r1, [r3]
+ ldrb r2, [r3, #1]
+ orr r1, r1, r2, lsl #8
+ ldrb r2, [r3, #2]
+ orr r1, r1, r2, lsl #16
+ ldrb r0, [r3, #3]
+ orr r0, r1, r0, lsl #24
+
+ ldrb r1, [r3, #4]
+ ldrb r2, [r3, #5]
+ orr r1, r1, r2, lsl #8
+ ldrb r2, [r3, #6]
+ orr r1, r1, r2, lsl #16
+ ldrb r2, [r3, #7]
+ orr r1, r1, r2, lsl #24
+
+ bx lr
diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/uwrite.S b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/uwrite.S new file mode 100644 index 0000000000..9432ac4317 --- /dev/null +++ b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/uwrite.S @@ -0,0 +1,53 @@ +#------------------------------------------------------------------------------
+#
+# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#------------------------------------------------------------------------------
+
+#include <AsmMacroIoLib.h>
+
+#
+#UINT32
+#EFIAPI
+#__aeabi_uwrite4 (
+# IN UINT32 Data,
+# IN VOID *Pointer
+# );
+#
+ASM_FUNC(__aeabi_uwrite4)
+ mov r2, r0, lsr #8
+ strb r0, [r1]
+ strb r2, [r1, #1]
+ mov r2, r0, lsr #16
+ strb r2, [r1, #2]
+ mov r2, r0, lsr #24
+ strb r2, [r1, #3]
+ bx lr
+
+#
+#UINT64
+#EFIAPI
+#__aeabi_uwrite8 (
+# IN UINT64 Data,
+# IN VOID *Pointer
+# );
+#
+ASM_FUNC(__aeabi_uwrite8)
+ mov r3, r0, lsr #8
+ strb r0, [r2]
+ strb r3, [r2, #1]
+ mov r3, r0, lsr #16
+ strb r3, [r2, #2]
+ mov r3, r0, lsr #24
+ strb r3, [r2, #3]
+
+ mov r3, r1, lsr #8
+ strb r1, [r2, #4]
+ strb r3, [r2, #5]
+ mov r3, r1, lsr #16
+ strb r3, [r2, #6]
+ mov r3, r1, lsr #24
+ strb r3, [r2, #7]
+ bx lr
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