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

[mirror_edk2.git] / OldMdePkg / Library / BaseLib / Ipf / ReadCpuid.s

diff --git a/OldMdePkg/Library/BaseLib/Ipf/ReadCpuid.s b/OldMdePkg/Library/BaseLib/Ipf/ReadCpuid.s
new file mode 100644 (file)
index 0000000..2176dad
--- /dev/null
+++ b/OldMdePkg/Library/BaseLib/Ipf/ReadCpuid.s
@@ -0,0 +1,40 @@
+/// @file\r
+///  IPF specific AsmReadCpuid()function\r
+///\r
+/// Copyright (c) 2006, Intel Corporation\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: ReadCpuid.s\r
+///\r
+///\r
+\r
+//---------------------------------------------------------------------------------\r
+//++\r
+// AsmReadCpuid\r
+//\r
+// This routine is used to Reads the current value of Processor Identifier Register (CPUID).\r
+//\r
+// Arguments :\r
+//\r
+// On Entry : The 8-bit Processor Identifier Register index to read.\r
+//\r
+// Return Value: The current value of Processor Identifier Register specified by Index.\r
+//\r
+//--\r
+//----------------------------------------------------------------------------------\r
+.text\r
+.type   AsmReadCpuid, @function\r
+.proc   AsmReadCpuid\r
+.regstk 1, 0, 0, 0\r
+\r
+AsmReadCpuid::\r
+        mov             r8 = cpuid[in0];;\r
+        br.ret.dpnt     b0;;\r
+.endp    AsmReadCpuid\r
+\r