mirror of https://github.com/acidanthera/audk.git
71 lines
2.2 KiB
ArmAsm
71 lines
2.2 KiB
ArmAsm
#------------------------------------------------------------------------------
|
|
#
|
|
# 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.
|
|
#
|
|
#------------------------------------------------------------------------------
|
|
.text
|
|
.p2align 2
|
|
|
|
.globl ASM_PFX(SetJump)
|
|
.globl ASM_PFX(InternalLongJump)
|
|
|
|
#/**
|
|
# 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
|
|
# );
|
|
#
|
|
ASM_PFX(SetJump):
|
|
mov r3, r13
|
|
stmia r0, {r3-r12,r14}
|
|
eor r0, 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
|
|
# );
|
|
#
|
|
ASM_PFX(InternalLongJump):
|
|
ldmia r0, {r3-r12,r14}
|
|
mov r13, r3
|
|
mov r0, r1
|
|
bx lr
|
|
|
|
ASM_FUNCTION_REMOVE_IF_UNREFERENCED
|