0dfddc011bb97674869354bfb91cf28df9f7cf81
[mirror_edk2.git] / MdePkg / Library / BaseLib / X64 / SwitchStack.asm
1 ;------------------------------------------------------------------------------
2 ;
3 ; Copyright (c) 2006, Intel Corporation
4 ; All rights reserved. This program and the accompanying materials
5 ; are licensed and made available under the terms and conditions of the BSD License
6 ; which accompanies this distribution. The full text of the license may be found at
7 ; http://opensource.org/licenses/bsd-license.php
8 ;
9 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
11 ;
12 ; Module Name:
13 ;
14 ; SwitchStack.Asm
15 ;
16 ; Abstract:
17 ;
18 ;------------------------------------------------------------------------------
19
20 .code
21
22 ;------------------------------------------------------------------------------
23 ; Routine Description:
24 ;
25 ; Routine for switching stacks with 1 parameter
26 ;
27 ; Arguments:
28 ;
29 ; (rcx) EntryPoint - Entry point with new stack.
30 ; (rdx) Context - Parameter for entry point.
31 ; (r8) Context2 - Parameter2 for entry point.
32 ; (r9) NewStack - Pointer to new stack.
33 ;
34 ; Returns:
35 ;
36 ; None
37 ;
38 ;------------------------------------------------------------------------------
39 SwitchStack PROC
40 mov rax, rcx
41 mov rcx, rdx
42 mov rdx, r8
43 lea rsp, [r9 - 20h]
44 call rax
45 SwitchStack ENDP
46
47 END