VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/asm/ASMCpuId_Idx_ECX.asm@ 74355

Last change on this file since 74355 was 69111, checked in by vboxsync, 7 years ago

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1; $Id: ASMCpuId_Idx_ECX.asm 69111 2017-10-17 14:26:02Z vboxsync $
2;; @file
3; IPRT - ASMCpuId_Idx_ECX().
4;
5
6;
7; Copyright (C) 2012-2017 Oracle Corporation
8;
9; This file is part of VirtualBox Open Source Edition (OSE), as
10; available from http://www.virtualbox.org. This file is free software;
11; you can redistribute it and/or modify it under the terms of the GNU
12; General Public License (GPL) as published by the Free Software
13; Foundation, in version 2 as it comes in the "COPYING" file of the
14; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16;
17; The contents of this file may alternatively be used under the terms
18; of the Common Development and Distribution License Version 1.0
19; (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20; VirtualBox OSE distribution, in which case the provisions of the
21; CDDL are applicable instead of those of the GPL.
22;
23; You may elect to license modified versions of this file under the
24; terms and conditions of either the GPL or the CDDL or both.
25;
26
27;*******************************************************************************
28;* Header Files *
29;*******************************************************************************
30%include "iprt/asmdefs.mac"
31
32BEGINCODE
33
34;;
35; CPUID with EAX and ECX inputs, returning ALL output registers.
36;
37; @param uOperator x86:ebp+8 gcc:rdi msc:rcx
38; @param uIdxECX x86:ebp+c gcc:rsi msc:rdx
39; @param pvEAX x86:ebp+10 gcc:rdx msc:r8
40; @param pvEBX x86:ebp+14 gcc:rcx msc:r9
41; @param pvECX x86:ebp+18 gcc:r8 msc:rsp+28h
42; @param pvEDX x86:ebp+1c gcc:r9 msc:rsp+30h
43;
44; @returns void
45;
46BEGINPROC_EXPORTED ASMCpuId_Idx_ECX
47%ifdef RT_ARCH_AMD64
48 mov r10, rbx
49
50 %ifdef ASM_CALL64_MSC
51
52 mov eax, ecx
53 mov ecx, edx
54 xor ebx, ebx
55 xor edx, edx
56
57 cpuid
58
59 mov [r8], eax
60 mov [r9], ebx
61 mov rax, [rsp + 28h]
62 mov rbx, [rsp + 30h]
63 mov [rax], ecx
64 mov [rbx], edx
65
66 %else
67 mov rsi, rdx
68 mov r11, rcx
69 mov eax, edi
70 mov ecx, esi
71 xor ebx, ebx
72 xor edx, edx
73
74 cpuid
75
76 mov [rsi], eax
77 mov [r11], ebx
78 mov [r8], ecx
79 mov [r9], edx
80
81 %endif
82
83 mov rbx, r10
84 ret
85
86%elifdef RT_ARCH_X86
87 push ebp
88 mov ebp, esp
89 push ebx
90 push edi
91
92 xor edx, edx
93 xor ebx, ebx
94 mov eax, [ebp + 08h]
95 mov ecx, [ebp + 0ch]
96
97 cpuid
98
99 mov edi, [ebp + 10h]
100 mov [edi], eax
101 mov edi, [ebp + 14h]
102 mov [edi], ebx
103 mov edi, [ebp + 18h]
104 mov [edi], ecx
105 mov edi, [ebp + 1ch]
106 mov [edi], edx
107
108 pop edi
109 pop ebx
110 leave
111 ret
112%else
113 %error unsupported arch
114%endif
115ENDPROC ASMCpuId_Idx_ECX
116
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