Update copyright for files modified in this year

[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / EnableCache.asm

;------------------------------------------------------------------------------\r
;\r
; Copyright (c) 2006 - 2008, 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
;   EnableCache.Asm\r
;\r
; Abstract:\r
;\r
;  Flush all caches with a WBINVD instruction, clear the CD bit of CR0 to 0, and clear \r
;  the NW bit of CR0 to 0\r
;\r
; Notes:\r
;\r
;------------------------------------------------------------------------------\r
\r
    .486p\r
    .model  flat,C\r
    .code\r
\r
;------------------------------------------------------------------------------\r
; VOID\r
; EFIAPI\r
; AsmEnableCache (\r
;   VOID\r
;   );\r
;------------------------------------------------------------------------------\r
AsmEnableCache PROC\r
    wbinvd\r
    mov     eax, cr0\r
    btr     eax, 29\r
    btr     eax, 30\r
    mov     cr0, eax\r
    ret\r
AsmEnableCache ENDP\r
\r
    END\r