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|
; $Id: ASMCpuId_Idx_ECX.asm $
;; @file
; IPRT - ASMCpuId_Idx_ECX().
;
;
; Copyright (C) 2012-2023 Oracle and/or its affiliates.
;
; This file is part of VirtualBox base platform packages, as
; available from https://www.virtualbox.org.
;
; This program is free software; you can redistribute it and/or
; modify it under the terms of the GNU General Public License
; as published by the Free Software Foundation, in version 3 of the
; License.
;
; This program is distributed in the hope that it will be useful, but
; WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
; General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with this program; if not, see <https://www.gnu.org/licenses>.
;
; The contents of this file may alternatively be used under the terms
; of the Common Development and Distribution License Version 1.0
; (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
; in the VirtualBox distribution, in which case the provisions of the
; CDDL are applicable instead of those of the GPL.
;
; You may elect to license modified versions of this file under the
; terms and conditions of either the GPL or the CDDL or both.
;
; SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
;
;*******************************************************************************
;* Header Files *
;*******************************************************************************
%include "iprt/asmdefs.mac"
BEGINCODE
;;
; CPUID with EAX and ECX inputs, returning ALL output registers.
;
; @param uOperator x86:ebp+8 gcc:rdi msc:rcx
; @param uIdxECX x86:ebp+c gcc:rsi msc:rdx
; @param pvEAX x86:ebp+10 gcc:rdx msc:r8
; @param pvEBX x86:ebp+14 gcc:rcx msc:r9
; @param pvECX x86:ebp+18 gcc:r8 msc:rsp+28h
; @param pvEDX x86:ebp+1c gcc:r9 msc:rsp+30h
;
; @returns void
;
RT_BEGINPROC ASMCpuId_Idx_ECX
%ifdef RT_ARCH_AMD64
mov r10, rbx
%ifdef ASM_CALL64_MSC
mov eax, ecx
mov ecx, edx
xor ebx, ebx
xor edx, edx
cpuid
mov [r8], eax
mov [r9], ebx
mov rax, [rsp + 28h]
mov rbx, [rsp + 30h]
mov [rax], ecx
mov [rbx], edx
%else
mov rsi, rdx
mov r11, rcx
mov eax, edi
mov ecx, esi
xor ebx, ebx
xor edx, edx
cpuid
mov [rsi], eax
mov [r11], ebx
mov [r8], ecx
mov [r9], edx
%endif
mov rbx, r10
ret
%elifdef RT_ARCH_X86
push ebp
mov ebp, esp
push ebx
push edi
xor edx, edx
xor ebx, ebx
mov eax, [ebp + 08h]
mov ecx, [ebp + 0ch]
cpuid
mov edi, [ebp + 10h]
mov [edi], eax
mov edi, [ebp + 14h]
mov [edi], ebx
mov edi, [ebp + 18h]
mov [edi], ecx
mov edi, [ebp + 1ch]
mov [edi], edx
pop edi
pop ebx
leave
ret
%else
%error unsupported arch
%endif
ENDPROC ASMCpuId_Idx_ECX
|
