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


Detailed Description

Contains an implementation of CallPalProcStacked on Itanium-based
architecture.
Copyright (c) 2008, 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: AsmCpuMisc.s


.text
.proc CpuBreakpoint
.type CpuBreakpoint,

CpuBreakpoint::
break.i 0;;
br.ret.dpnt b0;;

.endp CpuBreakpoint

.proc MemoryFence
.type MemoryFence,

MemoryFence::
mf;; // memory access ordering

do we need the mf.a also here?
mf.a // wait for any IO to complete?

not sure if we need serialization here, just put it, in case...

srlz.d;;
srlz.i;;

br.ret.dpnt b0;;
.endp MemoryFence

.proc DisableInterrupts
.type DisableInterrupts,

DisableInterrupts::
rsm 0x4000
srlz.d;;
br.ret.dpnt b0;;

.endp DisableInterrupts

.proc EnableInterrupts
.type EnableInterrupts,

EnableInterrupts::
ssm 0x4000
srlz.d;;
br.ret.dpnt b0;;

.endp EnableInterrupts

.proc EnableDisableInterrupts
.type EnableDisableInterrupts,

EnableDisableInterrupts::
ssm 0x4000
srlz.d;;
srlz.i;;
rsm 0x4000
srlz.d;;

br.ret.dpnt b0;;

.endp EnableDisableInterrupts



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