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https://github.com/CloverHackyColor/CloverBootloader.git
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34 lines
1.1 KiB
NASM
34 lines
1.1 KiB
NASM
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;------------------------------------------------------------------------------
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; @file
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; Copyright (C) 2020, vit9696. All rights reserved.
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;
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; All rights reserved.
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;
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; This program and the accompanying materials
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; are licensed and made available under the terms and conditions of the BSD License
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; which accompanies this distribution. The full text of the license may be found at
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; http://opensource.org/licenses/bsd-license.php
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;
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; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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;------------------------------------------------------------------------------
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BITS 64
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DEFAULT REL
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SECTION .text
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;------------------------------------------------------------------------------
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; UINT32
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; EFIAPI
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; AsmIncrementUint32 (
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; IN volatile UINT32 *Value
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; );
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;------------------------------------------------------------------------------
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global ASM_PFX(AsmIncrementUint32)
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ASM_PFX(AsmIncrementUint32):
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mov eax, 1
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lock xadd dword [rcx], eax
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inc eax
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ret
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