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37 lines
875 B
NASM
37 lines
875 B
NASM
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;------------------------------------------------------------------------------
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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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; ReadDr4.Asm
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;
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; Abstract:
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;
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; AsmReadDr4 function
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;
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; Notes:
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;
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;------------------------------------------------------------------------------
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DEFAULT REL
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SECTION .text
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;------------------------------------------------------------------------------
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; UINTN
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; EFIAPI
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; AsmReadDr4 (
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; VOID
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; );
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;------------------------------------------------------------------------------
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global ASM_PFX(AsmReadDr4)
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ASM_PFX(AsmReadDr4):
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;
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; There's no obvious reason to access this register, since it's aliased to
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; DR7 when DE=0 or an exception generated when DE=1
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;
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DB 0xf, 0x21, 0xe0
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ret
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