From 40004ff9d5e11441bb970dfc701e552801060b1b Mon Sep 17 00:00:00 2001
From: Abdul Lateef Attar <abdattar@amd.com>
Date: Fri, 18 Mar 2022 20:59:00 +0800
Subject: ShellPkg/AcpiView: PrintFormatter for FADT Flags field

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3839

Adds PrintFormatter function to the FADT flags field.
Prints indivisual flag name along with flag value.

Cc: Ray Ni <ray.ni@intel.com>
Cc: Zhichao Gao <zhichao.gao@intel.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Abdul Lateef Attar <abdattar@amd.com>
Reviewed-by: Zhichao Gao <zhichao.gao@intel.com>
---
 ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiParser.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiParser.c')

diff --git a/ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiParser.c b/ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiParser.c
index fcc56c189d..eac9286176 100644
--- a/ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiParser.c
+++ b/ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiParser.c
@@ -884,7 +884,7 @@ ParseAcpiBitFields (
     }
 
     // extract Bitfield data for the current item
-    Data = (BitsData >> Parser[Index].Offset) & ~(~0ULL << Parser[Index].Length);
+    Data = RShiftU64 (BitsData, Parser[Index].Offset) & ~(LShiftU64 (~0ULL, Parser[Index].Length));
 
     if (Trace) {
       // if there is a Formatter function let the function handle
-- 
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