;------------------------------------------------------------------------------ ; ; 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 SecSwitchStack AREA Switch_Stack, CODE, READONLY ;/** ; This allows the caller to switch the stack and return ; ; @param StackDelta Signed amount by which to modify the stack pointer ; ; @return Nothing. Goes to the Entry Point passing in the new parameters ; ;**/ ;VOID ;EFIAPI ;SecSwitchStack ( ; VOID *StackDelta ; ); ; SecSwitchStack MOV R1, SP ADD R1, R0, R1 MOV SP, R1 BX LR END