1 files changed, 28 insertions, 0 deletions
diff --git a/UefiCpuPkg/ResetVector/Vtf0/Port80Debug.asm b/UefiCpuPkg/ResetVector/Vtf0/Port80Debug.asm
new file mode 100644
index 000000000..2f9d0862e
--- /dev/null
+++ b/UefiCpuPkg/ResetVector/Vtf0/Port80Debug.asm
@@ -0,0 +1,28 @@
+;------------------------------------------------------------------------------
+; @file
+; Port 0x80 debug support macros
+;
+; Copyright (c) 2009, Intel Corporation
+; 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.
+;
+;------------------------------------------------------------------------------
+
+BITS    16
+
+%macro  debugInitialize 0
+    ;
+    ; No initialization is required
+    ;
+%endmacro
+
+%macro  debugShowPostCode 1
+    mov     al, %1
+    out     0x80, al
+%endmacro
+