UefiCpuPkg/CpuDxe/Ia32/CpuAsm.asm

      TITLE   CpuAsm.asm:
;------------------------------------------------------------------------------
;*
;*   Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
;*   This program and the accompanying materials
;*   are licensed and made available under the terms and conditions of the BSD License
;*   which accompanies this distribution.  The full text of the license may be found at
;*   http://opensource.org/licenses/bsd-license.php
;*
;*   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
;*   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
;*
;*    CpuAsm.asm
;*
;*   Abstract:
;*
;------------------------------------------------------------------------------

    .686
    .model  flat,C
    .code

;------------------------------------------------------------------------------
; VOID
; SetCodeSelector (
;   UINT16 Selector
;   );
;------------------------------------------------------------------------------
SetCodeSelector PROC PUBLIC
    mov     ecx, [esp+4]
    sub     esp, 0x10
    lea     eax, setCodeSelectorLongJump
    mov     [esp], eax
    mov     [esp+4], cx
    jmp     fword ptr [esp]
setCodeSelectorLongJump:
    add     esp, 0x10
    ret
SetCodeSelector ENDP

;------------------------------------------------------------------------------
; VOID
; SetDataSelectors (
;   UINT16 Selector
;   );
;------------------------------------------------------------------------------
SetDataSelectors PROC PUBLIC
    mov     ecx, [esp+4]
    mov     ss, cx
    mov     ds, cx
    mov     es, cx
    mov     fs, cx
    mov     gs, cx
    ret
SetDataSelectors ENDP


END