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[mirror_edk2.git] / MdePkg / Library / BaseLib / Ipf / CpuBreakpoint.c

/** @file\r
  Base Library CPU functions for Itanium\r
\r
  Copyright (c) 2006, Intel Corporation<BR>\r
  All rights reserved. This program and the accompanying materials\r
  are licensed and made available under the terms and conditions of the BSD License\r
  which accompanies this distribution.  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
\r
#include <BaseLibInternals.h>\r
\r
/**\r
  Generates a breakpoint on the CPU.\r
\r
  Generates a breakpoint on the CPU. The breakpoint must be implemented such\r
  that code can resume normal execution after the breakpoint.\r
\r
**/\r
VOID\r
EFIAPI\r
CpuBreakpoint (\r
  VOID\r
  )\r
{\r
  __break (0);\r
}\r
\r
/**\r
  Used to serialize load and store operations.\r
\r
  All loads and stores that proceed calls to this function are guaranteed to be\r
  globally visible when this function returns.\r
\r
**/\r
VOID\r
EFIAPI\r
MemoryFence (\r
  VOID\r
  )\r
{\r
  __mfa ();\r
}\r
\r
/**\r
  Disables CPU interrupts.\r
\r
  Disables CPU interrupts.\r
\r
**/\r
VOID\r
EFIAPI\r
DisableInterrupts (\r
  VOID\r
  )\r
{\r
  _disable ();\r
}\r
\r
/**\r
  Enables CPU interrupts.\r
\r
  Enables CPU interrupts.\r
\r
**/\r
VOID\r
EFIAPI\r
EnableInterrupts (\r
  VOID\r
  )\r
{\r
  _enable ();\r
}\r
\r
/**\r
  Enables CPU interrupts for the smallest window required to capture any\r
  pending interrupts.\r
\r
  Enables CPU interrupts for the smallest window required to capture any\r
  pending interrupts.\r
\r
**/\r
VOID\r
EFIAPI\r
EnableDisableInterrupts (\r
  VOID\r
  )\r
{\r
  EnableInterrupts ();\r
  DisableInterrupts ();\r
}\r