Moved the MdePkg to OldMdePkg so that new code in MdePkg does not break existing...

[mirror_edk2.git] / OldMdePkg / Library / BaseLib / x86GetInterruptState.c

diff --git a/OldMdePkg/Library/BaseLib/x86GetInterruptState.c b/OldMdePkg/Library/BaseLib/x86GetInterruptState.c
new file mode 100644 (file)
index 0000000..2e06efb
--- /dev/null
+++ b/OldMdePkg/Library/BaseLib/x86GetInterruptState.c
@@ -0,0 +1,39 @@
+/** @file\r
+  IA-32/x64 GetInterruptState()\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
+  Module Name:  x86GetInterruptState.c\r
+\r
+**/\r
+\r
+/**\r
+  Retrieves the current CPU interrupt state.\r
+\r
+  Retrieves the current CPU interrupt state. Returns TRUE is interrupts are\r
+  currently enabled. Otherwise returns FALSE.\r
+\r
+  @retval TRUE  CPU interrupts are enabled.\r
+  @retval FALSE CPU interrupts are disabled.\r
+\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+GetInterruptState (\r
+  VOID\r
+  )\r
+{\r
+  IA32_EFLAGS32                     EFlags;\r
+\r
+  EFlags.UintN = AsmReadEflags ();\r
+  return (BOOLEAN)(EFlags.Bits.IF == 1);\r
+}\r
+\r
+\r