RtlEqualString

UINT8 __stdcall RtlEqualString(_STRING *String1, _STRING *String2, UINT8 CaseInSensitive){
  __int64 Length; 
  char *Buffer; 
  char *v5; 
  char *v6; 
  signed __int64 v7; 
  INT8 v9; 
  INT8 v10; 

  Length = String1->Length;
  if( (_WORD)Length == String2->Length )
  {
    Buffer = String1->Buffer;
    v5 = String2->Buffer;
    v6 = &Buffer[Length];
    if( Buffer >= &Buffer[Length] )
      return 1;
    if( CaseInSensitive )
    {
      while( 1 )
      {
        v9 = *v5;
        if( *Buffer != *v5 )
        {
          v10 = RtlUpperChar(*Buffer);
          if( v10 != RtlUpperChar(v9) )
            break;
        }
        ++Buffer;
        ++v5;
        if( Buffer >= v6 )
          return 1;
      }
    }
    else
    {
      v7 = v5 - Buffer;
      while( *Buffer == Buffer[v7] )
      {
        if( ++Buffer >= v6 )
          return 1;
      }
    }
  }
  return 0;
}

Referenced by:

HalMatchAcpiOemId
IopGetBootDiskInformation
IopInitializeBuiltinDriver