From e59cdca8e82ca1165c4885f52666ae7b81140f75 Mon Sep 17 00:00:00 2001
From: klu2 <klu2@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Mon, 19 Jun 2006 09:13:44 +0000
Subject: [PATCH] Fix a bug to judege max value of UINT32, 0xFFFFFFFF is
 invalid UINT32 in JAVA.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@560 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../org/tianocore/build/pcd/entity/Token.java     | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/Tools/Source/GenBuild/org/tianocore/build/pcd/entity/Token.java b/Tools/Source/GenBuild/org/tianocore/build/pcd/entity/Token.java
index d901336366..9a54a3e579 100644
--- a/Tools/Source/GenBuild/org/tianocore/build/pcd/entity/Token.java
+++ b/Tools/Source/GenBuild/org/tianocore/build/pcd/entity/Token.java
@@ -593,14 +593,25 @@ public class Token {
 
     public boolean isValidNullValue(String judgedValue) {
         int         intValue;
+        String      subStr;
         BigInteger  bigIntValue;
 
         switch (datumType) {
         case UINT8:
         case UINT16:
         case UINT32:
-            intValue = Integer.decode(judgedValue);
-            if (intValue == 0) {
+            if (judgedValue.length() > 2) {
+                if ((judgedValue.charAt(0) == '0')        && 
+                    ((judgedValue.charAt(1) == 'x') || (judgedValue.charAt(1) == 'X'))){
+                    subStr      = judgedValue.substring(2, judgedValue.length());
+                    bigIntValue = new BigInteger(subStr, 16);
+                } else {
+                    bigIntValue = new BigInteger(judgedValue);
+                }
+            } else {
+                bigIntValue = new BigInteger(judgedValue);
+            }
+            if (bigIntValue.bitCount() == 0) {
                 return true;
             }
             break;
-- 
2.39.2