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;------------------------------------------------------------------------------
;
; Copyright (c) 2006 - 2008, Intel Corporation. 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.
;
; Module Name:
;
; SwitchStack.Asm
;
; Abstract:
;
;------------------------------------------------------------------------------
.code
;------------------------------------------------------------------------------
; Routine Description:
;
; Routine for switching stacks with 2 parameters
;
; Arguments:
;
; (rcx) EntryPoint - Entry point with new stack.
; (rdx) Context1 - Parameter1 for entry point.
; (r8) Context2 - Parameter2 for entry point.
; (r9) NewStack - The pointer to new stack.
;
; Returns:
;
; None
;
;------------------------------------------------------------------------------
InternalSwitchStack PROC
mov rax, rcx
mov rcx, rdx
mov rdx, r8
;
; Reserve space for register parameters (rcx, rdx, r8 & r9) on the stack,
; in case the callee wishes to spill them.
;
lea rsp, [r9 - 20h]
call rax
InternalSwitchStack ENDP
END
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