;------------------------------------------------------------------------------

;

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

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

;

;------------------------------------------------------------------------------

EXPORT SetJump

EXPORT InternalLongJump

AREA BaseLib, CODE, READONLY

;/**

; Saves the current CPU context that can be restored with a call to LongJump() and returns 0.;

;

; Saves the current CPU context in the buffer specified by JumpBuffer and returns 0. The initial

; call to SetJump() must always return 0. Subsequent calls to LongJump() cause a non-zero

; value to be returned by SetJump().

;

; If JumpBuffer is NULL, then ASSERT().

; For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().

;

; @param JumpBuffer A pointer to CPU context buffer.

;

;**/

;

;UINTN

;EFIAPI

;SetJump (

; IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer // R0

; )

;

SetJump

MOV R3, R13

STM R0, {R3-R12,R14}

EOR R0, R0

BX LR

;/**

; Restores the CPU context that was saved with SetJump().;

;

; Restores the CPU context from the buffer specified by JumpBuffer.

; This function never returns to the caller.

; Instead is resumes execution based on the state of JumpBuffer.

;

; @param JumpBuffer A pointer to CPU context buffer.

; @param Value The value to return when the SetJump() context is restored.

;

;**/

;VOID

;EFIAPI

;InternalLongJump (

; IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer, // R0

; IN UINTN Value // R1

; );

;

InternalLongJump

LDM R0, {R3-R12,R14}

MOV R13, R3

MOV R0, R1

BX LR

END