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1 | ; $Id: ASMAddFlags.asm 82968 2020-02-04 10:35:17Z 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) 2006-2020 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 | BEGINPROC_EXPORTED 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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