| 1 | ;; @file
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| 2 | ; IPRT - ASMGetDR0().
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| 3 | ;
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| 4 |
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| 5 | ;
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| 6 | ; Copyright (C) 2006-2024 Oracle and/or its affiliates.
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| 7 | ;
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| 8 | ; This file is part of VirtualBox base platform packages, as
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| 9 | ; available from https://www.virtualbox.org.
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| 10 | ;
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| 11 | ; This program is free software; you can redistribute it and/or
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| 12 | ; modify it under the terms of the GNU General Public License
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| 13 | ; as published by the Free Software Foundation, in version 3 of the
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| 14 | ; License.
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| 15 | ;
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| 16 | ; This program is distributed in the hope that it will be useful, but
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| 17 | ; WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 19 | ; General Public License for more details.
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| 20 | ;
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| 21 | ; You should have received a copy of the GNU General Public License
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| 22 | ; along with this program; if not, see <https://www.gnu.org/licenses>.
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| 23 | ;
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| 24 | ; The contents of this file may alternatively be used under the terms
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| 25 | ; of the Common Development and Distribution License Version 1.0
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| 26 | ; (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 27 | ; in the VirtualBox distribution, in which case the provisions of the
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| 28 | ; CDDL are applicable instead of those of the GPL.
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| 29 | ;
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| 30 | ; You may elect to license modified versions of this file under the
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| 31 | ; terms and conditions of either the GPL or the CDDL or both.
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| 32 | ;
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| 33 | ; SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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| 34 | ;
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| 35 |
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| 36 |
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| 37 | ;*******************************************************************************
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| 38 | ;* Header Files *
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| 39 | ;*******************************************************************************
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| 40 | %include "iprt/asmdefs.mac"
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| 41 |
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| 42 | BEGINCODE
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| 43 |
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| 44 | ;;
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| 45 | ; Get the dr0 register value.
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| 46 | ; @returns dr0.
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| 47 | ;
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| 48 | RT_BEGINPROC ASMGetDR0
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| 49 | mov rax, dr0
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| 50 | ret
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| 51 | ENDPROC ASMGetDR0
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| 52 |
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| 53 |
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| 54 | RT_BEGINPROC ASMSetDR0
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| 55 | mov dr0, rcx
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| 56 | ret
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| 57 | ENDPROC ASMSetDR0
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