mirror of https://github.com/acidanthera/audk.git
102 lines
1.8 KiB
C
102 lines
1.8 KiB
C
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/** @file
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Base Library CPU functions for Itanium
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Copyright (c) 2006, Intel Corporation<BR>
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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//void __mfa (void);
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#pragma intrinsic (_enable)
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#pragma intrinsic (_disable)
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#pragma intrinsic (__break)
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#pragma intrinsic (__mfa)
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/**
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Generates a breakpoint on the CPU.
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Generates a breakpoint on the CPU. The breakpoint must be implemented such
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that code can resume normal execution after the breakpoint.
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**/
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VOID
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EFIAPI
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CpuBreakpoint (
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VOID
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)
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{
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__break (0);
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}
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/**
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Used to serialize load and store operations.
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All loads and stores that proceed calls to this function are guaranteed to be
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globally visible when this function returns.
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**/
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VOID
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EFIAPI
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MemoryFence (
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VOID
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)
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{
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__mfa ();
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}
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/**
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Disables CPU interrupts.
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Disables CPU interrupts.
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**/
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VOID
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EFIAPI
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DisableInterrupts (
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VOID
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)
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{
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_disable ();
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}
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/**
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Enables CPU interrupts.
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Enables CPU interrupts.
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**/
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VOID
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EFIAPI
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EnableInterrupts (
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VOID
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)
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{
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_enable ();
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}
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/**
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Retrieves the current CPU interrupt state.
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Retrieves the current CPU interrupt state. Returns TRUE is interrupts are
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currently enabled. Otherwise returns FALSE.
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@retval TRUE CPU interrupts are enabled.
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@retval FALSE CPU interrupts are disabled.
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**/
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BOOLEAN
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EFIAPI
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GetInterruptState (
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VOID
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)
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{
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return FALSE;
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}
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