audk/ArmPlatformPkg/PrePeiCore/AArch64/SwitchStack.S

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# Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
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#------------------------------------------------------------------------------

.text
.align 3

GCC_ASM_EXPORT(SecSwitchStack)



#/**
#  This allows the caller to switch the stack and return
#
# @param      StackDelta     Signed amount by which to modify the stack pointer
#
# @return     Nothing. Goes to the Entry Point passing in the new parameters
#
#**/
#VOID
#EFIAPI
#SecSwitchStack (
#  VOID  *StackDelta
#  )#
#
ASM_PFX(SecSwitchStack):
    mov   x1, sp
    add   x1, x0, x1
    mov   sp, x1
    ret