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| 1 | ; $Id: ASMAddFlags.asm 93115 2022-01-01 11:31:46Z vboxsync $
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| 2 | ;; @file
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| 3 | ; IPRT - ASMSetFlags().
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| 4 | ;
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| 5 |
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| 6 | ;
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| 7 | ; Copyright (C) 2006-2022 Oracle Corporation
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| 8 | ;
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| 9 | ; This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | ; available from http://www.virtualbox.org. This file is free software;
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| 11 | ; you can redistribute it and/or modify it under the terms of the GNU
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| 12 | ; General Public License (GPL) as published by the Free Software
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| 13 | ; Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | ; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | ; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | ;
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| 17 | ; The contents of this file may alternatively be used under the terms
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| 18 | ; of the Common Development and Distribution License Version 1.0
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| 19 | ; (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | ; VirtualBox OSE distribution, in which case the provisions of the
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| 21 | ; CDDL are applicable instead of those of the GPL.
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| 22 | ;
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| 23 | ; You may elect to license modified versions of this file under the
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| 24 | ; terms and conditions of either the GPL or the CDDL or both.
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| 25 | ;
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| 26 |
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| 27 |
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| 28 | ;*******************************************************************************
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| 29 | ;* Header Files *
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| 30 | ;*******************************************************************************
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| 31 | %include "iprt/asmdefs.mac"
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| 32 |
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| 33 | BEGINCODE
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| 34 |
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| 35 | ;;
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| 36 | ; @param rcx/rdi eflags to add
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| 37 | RT_BEGINPROC ASMAddFlags
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| 38 | %if ARCH_BITS == 64
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| 39 | pushfq
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| 40 | mov rax, [rsp]
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| 41 | %ifdef ASM_CALL64_GCC
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| 42 | or rdi, rax
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| 43 | mov [rsp], rdi
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| 44 | %else
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| 45 | or rcx, rax
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| 46 | mov [rsp], rcx
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| 47 | %endif
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| 48 | popfq
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| 49 | %elif ARCH_BITS == 32
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| 50 | mov ecx, [esp + 4]
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| 51 | pushfd
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| 52 | mov eax, [esp]
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| 53 | or ecx, eax
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| 54 | mov [esp], ecx
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| 55 | popfd
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| 56 | %elif ARCH_BITS == 16
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| 57 | push bp
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| 58 | mov bp, sp
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| 59 | pushf
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| 60 | pop ax
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| 61 | push word [bp + 2 + 2]
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| 62 | or [bp - 2], ax
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| 63 | popf
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| 64 | leave
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| 65 | %else
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| 66 | %error ARCH_BITS
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| 67 | %endif
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| 68 | ret
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| 69 | ENDPROC ASMAddFlags
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| 70 |
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