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35 lines
913 B
NASM
35 lines
913 B
NASM
;------------------------------------------------------------------------------
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;
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; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
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; SPDX-License-Identifier: BSD-2-Clause-Patent
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;
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; Module Name:
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;
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; CpuId.Asm
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;
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; Abstract:
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;
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; AsmCpuid function
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;
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; Notes:
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;
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;------------------------------------------------------------------------------
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SECTION .text
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;------------------------------------------------------------------------------
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; UINT64
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; EFIAPI
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; InternalMathSwapBytes64 (
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; IN UINT64 Operand
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; );
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;------------------------------------------------------------------------------
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global ASM_PFX(InternalMathSwapBytes64)
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ASM_PFX(InternalMathSwapBytes64):
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mov eax, [esp + 8] ; eax <- upper 32 bits
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mov edx, [esp + 4] ; edx <- lower 32 bits
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bswap eax
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bswap edx
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ret
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