mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-10 14:23:31 +01:00
65 lines
1.8 KiB
NASM
65 lines
1.8 KiB
NASM
;------------------------------------------------------------------------------
|
|
;
|
|
; Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
; Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
|
|
; SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
;
|
|
;------------------------------------------------------------------------------
|
|
|
|
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
|