[mirror_edk2.git] / EdkCompatibilityPkg / Foundation / Library / EdkIIGlueLib / Library / BaseLib / Ia32 / CpuIdEx.asm

; Copyright (c) 2004, Intel Corporation                                                         \r
; All rights reserved. This program and the accompanying materials                          \r
; are licensed and made available under the terms and conditions of the BSD License         \r
; which accompanies this distribution.  The full text of the license may be found at        \r
; http://opensource.org/licenses/bsd-license.php                                            \r
;                                                                                           \r
; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.    \r
;\r
; Module Name:\r
;\r
;   CpuIdEx.Asm\r
;\r
; Abstract:\r
;\r
;   AsmCpuidEx function\r
;\r
; Notes:\r
;\r
;------------------------------------------------------------------------------\r
\r
    .686\r
    .model  flat,C\r
    .code\r
\r
;------------------------------------------------------------------------------\r
;  UINT32\r
;  EFIAPI\r
;  AsmCpuidEx (\r
;    IN   UINT32  RegisterInEax,\r
;    IN   UINT32  RegisterInEcx,\r
;    OUT  UINT32  *RegisterOutEax  OPTIONAL,\r
;    OUT  UINT32  *RegisterOutEbx  OPTIONAL,\r
;    OUT  UINT32  *RegisterOutEcx  OPTIONAL,\r
;    OUT  UINT32  *RegisterOutEdx  OPTIONAL\r
;    )\r
;------------------------------------------------------------------------------\r
AsmCpuidEx  PROC    USES    ebx\r
    push    ebp\r
    mov     ebp, esp\r
    mov     eax, [ebp + 12]\r
    mov     ecx, [ebp + 16]\r
    cpuid\r
    push    ecx\r
    mov     ecx, [ebp + 20]\r
    jecxz   @F\r
    mov     [ecx], eax\r
@@:\r
    mov     ecx, [ebp + 24]\r
    jecxz   @F\r
    mov     [ecx], ebx\r
@@:\r
    mov     ecx, [ebp + 28]\r
    jecxz   @F\r
    pop     [ecx]\r
@@:\r
    mov     edx, [ebp + 32]\r
    jecxz   @F\r
    mov     [ecx], edx\r
@@:\r
    mov     eax, [ebp + 12]\r
    leave\r
    ret\r
AsmCpuidEx  ENDP\r
\r
    END\r
Commit	Line	Data
3eb9473e	1	; Copyright (c) 2004, Intel Corporation \r
	2	; All rights reserved. This program and the accompanying materials \r
	3	; are licensed and made available under the terms and conditions of the BSD License \r
	4	; which accompanies this distribution. The full text of the license may be found at \r
	5	; http://opensource.org/licenses/bsd-license.php \r
	6	; \r
	7	; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
	8	; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
	9	;\r
	10	; Module Name:\r
	11	;\r
	12	; CpuIdEx.Asm\r
	13	;\r
	14	; Abstract:\r
	15	;\r
	16	; AsmCpuidEx function\r
	17	;\r
	18	; Notes:\r
	19	;\r
	20	;------------------------------------------------------------------------------\r
	21	\r
	22	.686\r
	23	.model flat,C\r
	24	.code\r
	25	\r
	26	;------------------------------------------------------------------------------\r
	27	; UINT32\r
	28	; EFIAPI\r
	29	; AsmCpuidEx (\r
	30	; IN UINT32 RegisterInEax,\r
	31	; IN UINT32 RegisterInEcx,\r
	32	; OUT UINT32 *RegisterOutEax OPTIONAL,\r
	33	; OUT UINT32 *RegisterOutEbx OPTIONAL,\r
	34	; OUT UINT32 *RegisterOutEcx OPTIONAL,\r
	35	; OUT UINT32 *RegisterOutEdx OPTIONAL\r
	36	; )\r
	37	;------------------------------------------------------------------------------\r
	38	AsmCpuidEx PROC USES ebx\r
	39	push ebp\r
	40	mov ebp, esp\r
	41	mov eax, [ebp + 12]\r
	42	mov ecx, [ebp + 16]\r
	43	cpuid\r
	44	push ecx\r
	45	mov ecx, [ebp + 20]\r
	46	jecxz @F\r
	47	mov [ecx], eax\r
	48	@@:\r
	49	mov ecx, [ebp + 24]\r
	50	jecxz @F\r
	51	mov [ecx], ebx\r
	52	@@:\r
	53	mov ecx, [ebp + 28]\r
	54	jecxz @F\r
	55	pop [ecx]\r
	56	@@:\r
	57	mov edx, [ebp + 32]\r
	58	jecxz @F\r
	59	mov [ecx], edx\r
	60	@@:\r
	61	mov eax, [ebp + 12]\r
	62	leave\r
	63	ret\r
	64	AsmCpuidEx ENDP\r
65	\r
66	END\r