4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# This program and the accompanying materials
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# are licensed and made available under the terms and conditions of the BSD License
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# which accompanies this distribution. The full text of the license may be found at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# http://opensource.org/licenses/bsd-license.php.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync.text
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync.p2align 2
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncGCC_ASM_EXPORT(SetJump)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncGCC_ASM_EXPORT(InternalLongJump)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Saves the current CPU context that can be restored with a call to LongJump() and returns 0.#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Saves the current CPU context in the buffer specified by JumpBuffer and returns 0. The initial
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# call to SetJump() must always return 0. Subsequent calls to LongJump() cause a non-zero
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# value to be returned by SetJump().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# If JumpBuffer is NULL, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# @param JumpBuffer A pointer to CPU context buffer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#**/
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#UINTN
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#EFIAPI
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#SetJump (
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer // R0
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# );
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncASM_PFX(SetJump):
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov r3, r13
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync stmia r0, {r3-r12,r14}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync eor r0, r0, r0
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync bx lr
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Restores the CPU context that was saved with SetJump().#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Restores the CPU context from the buffer specified by JumpBuffer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# This function never returns to the caller.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Instead is resumes execution based on the state of JumpBuffer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# @param JumpBuffer A pointer to CPU context buffer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# @param Value The value to return when the SetJump() context is restored.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#**/
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#VOID
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#EFIAPI
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#InternalLongJump (
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer, // R0
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# IN UINTN Value // R1
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# );
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncASM_PFX(InternalLongJump):
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ldmia r0, {r3-r12,r14}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov r13, r3
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov r0, r1
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync bx lr
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncASM_FUNCTION_REMOVE_IF_UNREFERENCED