MdePkg/Library/BaseLib/Ipf/AccessGp.s File Reference


Detailed Description

IPF specific Global Pointer and Stack Pointer accessing functions
Copyright (c) 2006, Intel Corporation. All rights reserved.

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: AccessGp.s

AsmReadGp
This routine is used to read the current value of 64-bit Global Pointer (GP).
Arguments :
On Entry :
Return Value: The current GP value.
.text
.type AsmReadGp,
.proc AsmReadGp

AsmReadGp::
mov r8 = gp;;
br.ret.dpnt b0;;
.endp AsmReadGp

AsmWriteGp
This routine is used to write the current value of 64-bit Global Pointer (GP).
Arguments :
On Entry : The value need to be written.
Return Value: The value have been written.
.text
.type AsmWriteGp,
.proc AsmWriteGp
.regstk 1, 0, 0, 0

AsmWriteGp::
mov gp = in0
mov r8 = in0;;
br.ret.dpnt b0;;
.endp AsmWriteGp

AsmReadSp
This routine is used to read the current value of 64-bit Stack Pointer (SP).
Arguments :
On Entry :
Return Value: The current SP value.
.text
.type AsmReadSp,
.proc AsmReadSp

AsmReadSp::
mov r8 = sp;;
br.ret.dpnt b0;;
.endp AsmReadSp


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