From 437dfba25bb023f1a9ae351438c14204e950c1f2 Mon Sep 17 00:00:00 2001
From: jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Fri, 22 Apr 2011 22:21:53 +0000
Subject: [PATCH] OptionRomPkg BltLibSample: Fix build for IPF architecture

Use AsmReadItc for IPF and AsmReadTsc for IA32 & X64.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11580 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../Application/BltLibSample/BltLibSample.c   | 20 ++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/OptionRomPkg/Application/BltLibSample/BltLibSample.c b/OptionRomPkg/Application/BltLibSample/BltLibSample.c
index fd2b2ce345..300b9ee117 100644
--- a/OptionRomPkg/Application/BltLibSample/BltLibSample.c
+++ b/OptionRomPkg/Application/BltLibSample/BltLibSample.c
@@ -20,6 +20,20 @@
 #include <Library/UefiBootServicesTableLib.h>
 
 
+UINT64
+ReadTimestamp (
+  VOID
+  )
+{
+#if defined (MDE_CPU_IA32) || defined (MDE_CPU_X64)
+  return AsmReadTsc ();
+#elif defined (MDE_CPU_IPF)
+  return AsmReadItc ();
+#else
+#error ReadTimestamp not supported for this architecture!
+#endif
+}
+
 UINT32
 Rand32 (
   VOID
@@ -34,10 +48,10 @@ Rand32 (
 
   R32 = 0;
   Found = 0;
-  Tsc1 = AsmReadTsc ();
-  Tsc2 = AsmReadTsc ();
+  Tsc1 = ReadTimestamp ();
+  Tsc2 = ReadTimestamp ();
   do {
-    Tsc2 = AsmReadTsc ();
+    Tsc2 = ReadTimestamp ();
     TscBits = Tsc2 ^ Tsc1;
     Bits = HighBitSet64 (TscBits);
     if (Bits > 0) {