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3 # Copyright (c) 2006 - 2009, Intel Corporation<BR>
4 # Portions copyright (c) 2008-2009 Apple Inc. All rights reserved.<BR>
5 # All rights reserved. This program and the accompanying materials
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10 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
13 #------------------------------------------------------------------------------
17 .globl ASM_PFX(SetJump)
18 .globl ASM_PFX(InternalLongJump)
21 # Saves the current CPU context that can be restored with a call to LongJump() and returns 0.#
23 # Saves the current CPU context in the buffer specified by JumpBuffer and returns 0. The initial
24 # call to SetJump() must always return 0. Subsequent calls to LongJump() cause a non-zero
25 # value to be returned by SetJump().
27 # If JumpBuffer is NULL, then ASSERT().
28 # For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().
30 # @param JumpBuffer A pointer to CPU context buffer.
37 # IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer // R0
42 stmia r0, {r3-r12,r14}
47 # Restores the CPU context that was saved with SetJump().#
49 # Restores the CPU context from the buffer specified by JumpBuffer.
50 # This function never returns to the caller.
51 # Instead is resumes execution based on the state of JumpBuffer.
53 # @param JumpBuffer A pointer to CPU context buffer.
54 # @param Value The value to return when the SetJump() context is restored.
60 # IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer, // R0
61 # IN UINTN Value // R1
64 ASM_PFX(InternalLongJump):
65 ldmia r0, {r3-r12,r14}
70 ASM_FUNCTION_REMOVE_IF_UNREFERENCED