diff options
Diffstat (limited to 'roms/edk2/MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedIncrement.nasm')
| -rw-r--r-- | roms/edk2/MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedIncrement.nasm | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedIncrement.nasm b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedIncrement.nasm new file mode 100644 index 000000000..afa5ad2cc --- /dev/null +++ b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedIncrement.nasm @@ -0,0 +1,34 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+; Module Name:
+;
+; InterlockedIncrement.Asm
+;
+; Abstract:
+;
+; InterlockedIncrement function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; UINT32
+; EFIAPI
+; InternalSyncIncrement (
+; IN volatile UINT32 *Value
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalSyncIncrement)
+ASM_PFX(InternalSyncIncrement):
+ mov ecx, [esp + 4]
+ mov eax, 1
+ lock xadd dword [ecx], eax
+ inc eax
+ ret
+
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