1 files changed, 69 insertions, 0 deletions
diff --git a/ShellPkg/Library/UefiShellCommandLib/UefiShellCommandLib.c b/ShellPkg/Library/UefiShellCommandLib/UefiShellCommandLib.c
index ceda7ab81e..92a88d18a0 100644
--- a/ShellPkg/Library/UefiShellCommandLib/UefiShellCommandLib.c
+++ b/ShellPkg/Library/UefiShellCommandLib/UefiShellCommandLib.c
@@ -29,6 +29,25 @@ STATIC UINTN                              mFsMaxCount = 0;
 STATIC UINTN                              mBlkMaxCount = 0;
 STATIC BUFFER_LIST                        mFileHandleList;
 
+STATIC CONST CHAR8 Hex[] = {
+  '0',
+  '1',
+  '2',
+  '3',
+  '4',
+  '5',
+  '6',
+  '7',
+  '8',
+  '9',
+  'A',
+  'B',
+  'C',
+  'D',
+  'E',
+  'F'
+};
+
 // global variables required by library class.
 EFI_UNICODE_COLLATION_PROTOCOL    *gUnicodeCollation            = NULL;
 SHELL_MAP_LIST                    gShellMapList;
@@ -1673,3 +1692,53 @@ FreeBufferList (
   }
 }
 
+/**
+  Dump some hexadecimal data to the screen.
+
+  @param[in] Indent     How many spaces to indent the output.
+  @param[in] Offset     The offset of the printing.
+  @param[in] DataSize   The size in bytes of UserData.
+  @param[in] UserData   The data to print out.
+**/
+VOID
+DumpHex (
+  IN UINTN        Indent,
+  IN UINTN        Offset,
+  IN UINTN        DataSize,
+  IN VOID         *UserData
+  )
+{
+  UINT8 *Data;
+
+  CHAR8 Val[50];
+
+  CHAR8 Str[20];
+
+  UINT8 TempByte;
+  UINTN Size;
+  UINTN Index;
+
+  Data = UserData;
+  while (DataSize != 0) {
+    Size = 16;
+    if (Size > DataSize) {
+      Size = DataSize;
+    }
+
+    for (Index = 0; Index < Size; Index += 1) {
+      TempByte            = Data[Index];
+      Val[Index * 3 + 0]  = Hex[TempByte >> 4];
+      Val[Index * 3 + 1]  = Hex[TempByte & 0xF];
+      Val[Index * 3 + 2]  = (CHAR8) ((Index == 7) ? '-' : ' ');
+      Str[Index]          = (CHAR8) ((TempByte < ' ' || TempByte > 'z') ? '.' : TempByte);
+    }
+
+    Val[Index * 3]  = 0;
+    Str[Index]      = 0;
+    ShellPrintEx(-1, -1, L"%*a%08X: %-48a *%a*\r\n", Indent, "", Offset, Val, Str);
+
+    Data += Size;
+    Offset += Size;
+    DataSize -= Size;
+  }
+}