Processor for secure data and command processing investigates called up command security marker and carries out called up command on called up data if marker has defined value

摘要

The processor has a device (10) for calling up from memory (18) a command and the associated security marker as well as data that the command would access, a device (22) for investigating the marker to determine whether it has a defined value and a device (10) for carrying out the command on the data under control of the investigation device if the marker has the defined value.