MdePkg/Library/BaseLib/Arm/SwitchStack.asm File Reference


Detailed Description

;------------------------------------------------------------------------------
;
; Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.

; Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.

; 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.
;
;------------------------------------------------------------------------------

EXPORT InternalSwitchStackAsm

AREA Switch_Stack, CODE, READONLY

;/**
; This allows the caller to switch the stack and goes to the new entry point
;
;
Parameters:
EntryPoint The pointer to the location to enter
;
Context Parameter to pass in
;
Context2 Parameter2 to pass in
;
NewStack New Location of the stack
;
;
Returns:
Nothing. Goes to the Entry Point passing in the new parameters
;
;VOID
;EFIAPI
;InternalSwitchStackAsm (
; SWITCH_STACK_ENTRY_POINT EntryPoint,
; VOID *Context,
; VOID *Context2,
; VOID *NewStack
; );
;
InternalSwitchStackAsm
MOV LR, R0
MOV SP, R3
MOV R0, R1
MOV R1, R2
BX LR
END


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