; $Id$

;; @file

; IPRT - ASMCpuIdExSlow().

;

;

; Copyright (C) 2012-2013 Oracle Corporation

;

; This file is part of VirtualBox Open Source Edition (OSE), as

; available from http://www.virtualbox.org. This file is free software;

; you can redistribute it and/or modify it under the terms of the GNU

; General Public License (GPL) as published by the Free Software

; Foundation, in version 2 as it comes in the "COPYING" file of the

; VirtualBox OSE distribution. VirtualBox OSE is distributed in the

; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.

;

; The contents of this file may alternatively be used under the terms

; of the Common Development and Distribution License Version 1.0

; (CDDL) only, as it comes in the "COPYING.CDDL" file of the

; VirtualBox OSE 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.

;

;*******************************************************************************

;* 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 uInitEBX x86:ebp+c gcc:rsi msc:rdx

; @param uInitECX x86:ebp+10 gcc:rcx msc:r8

; @param uInitEDX x86:ebp+14 gcc:rdx msc:r9

; @param pvEAX x86:ebp+18 gcc:r8 msc:rbp+30h

; @param pvEBX x86:ebp+1c gcc:r9 msc:rbp+38h

; @param pvECX x86:ebp+20 gcc:rbp+10h msc:rbp+40h

; @param pvEDX x86:ebp+24 gcc:rbp+18h msc:rbp+48h

;

; @returns EAX

;

BEGINPROC_EXPORTED ASMCpuIdExSlow

push xBP

mov xBP, xSP

push xBX

%ifdef RT_ARCH_X86

push edi

%endif

%ifdef ASM_CALL64_MSC

mov eax, ecx

mov ebx, edx

mov ecx, r8

mov edx, r9

mov r8, [rbp + 30h]

mov r9, [rbp + 38h]

mov r10, [rbp + 40h]

mov r11, [rbp + 48h]

%elifdef ASM_CALL64_GCC

mov eax, edi

mov ebx, esi

mov r10, [rbp + 10h]

mov r11, [rbp + 18h]

%elifdef RT_ARCH_X86

mov eax, [ebp + 08h]

mov ebx, [ebp + 0ch]

mov ecx, [ebp + 10h]

mov edx, [ebp + 14h]

mov edi [ebp + 18h]

%else

%error unsupported arch

%endif

cpuid

%ifdef RT_ARCH_AMD64

test r8, r8

jz .store_ebx

mov [r8], eax

%else

test edi, edi

jz .store_ebx

mov [edi], eax

%endif

.store_ebx:

%ifdef RT_ARCH_AMD64

test r9, r9

jz .store_ecx

mov [r9], eax

%else

mov edi, [ebp + 1ch]

test edi, edi

jz .store_ecx

mov [edi], ebx

%endif

.store_ecx:

%ifdef RT_ARCH_AMD64

test r10, r10

jz .store_edx

mov [r10], ecx

%else

mov edi, [ebp + 20h]

test edi, edi

jz .store_edx

mov [edi], ecx

%endif

.store_edx:

%ifdef RT_ARCH_AMD64

test r11, r11

jz .done

mov [r11], ecx

%else

mov edi, [ebp + 24h]

test edi, edi

jz .done

mov [edi], edx

%endif

.done:

%ifdef RT_ARCH_X86

pop edi

%endif

pop xBX

leave

ret

ENDPROC ASMCpuIdExSlow