Initial import.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Library/BaseLib/Ebc/CpuBreakpoint.c

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+/** @file
+  Base Library CPU Functions for EBC
+
+  Copyright (c) 2006, Intel Corporation<BR>
+  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.
+
+**/
+
+extern
+UINT64
+_break (
+  CHAR8 BreakCode
+  );
+
+/**
+  Generates a breakpoint on the CPU.
+
+  Generates a breakpoint on the CPU. The breakpoint must be implemented such
+  that code can resume normal execution after the breakpoint.
+
+**/
+VOID
+EFIAPI
+CpuBreakpoint (
+  VOID
+  )
+{
+  _break (3);
+}
+
+/**
+  Used to serialize load and store operations.
+
+  All loads and stores that proceed calls to this function are guaranteed to be
+  globally visible when this function returns.
+
+**/
+VOID
+EFIAPI
+MemoryFence (
+  VOID
+  )
+{
+}
+
+/**
+  Disables CPU interrupts.
+
+  Disables CPU interrupts.
+
+**/
+VOID
+EFIAPI
+DisableInterrupts (
+  VOID
+  )
+{
+  ASSERT (FALSE);
+}
+
+/**
+  Enables CPU interrupts.
+
+  Enables CPU interrupts.
+
+**/
+VOID
+EFIAPI
+EnableInterrupts (
+  VOID
+  )
+{
+  ASSERT (FALSE);
+}
+
+/**
+  Retrieves the current CPU interrupt state.
+
+  Retrieves the current CPU interrupt state. Returns TRUE is interrupts are
+  currently enabled. Otherwise returns FALSE.
+
+  @retval TRUE  CPU interrupts are enabled.
+  @retval FALSE CPU interrupts are disabled.
+
+**/
+BOOLEAN
+EFIAPI
+GetInterruptState (
+  VOID
+  )
+{
+  ASSERT (FALSE);
+  return FALSE;
+}