Abstract: An apparatus and method for loading data values from a memory system are provided. The data processing apparatus comprises a data processing unit operable to execute instructions, and a register file having a plurality of registers operable to store data values accessible by the data processing unit when executing the instructions. Further, a holding register is provided which does not form one of a working set of registers of the register file, and is operable to temporarily store a data value, the holding register having a data portion for storing the data value, and an identifier portion operable to store identifier data associated with the data value.

Abstract: A component attached to at least two substrates is provided wherein each substrate has a conductive pattern. The conductive patterns formed on each of the substrates are identical to each other and electrically connected to each other. The conductive pattern of the top substrate is electrically connected to the component. Even though the conductive patterns of the substrates are identical to each other, the electrical signals of the component may be uniquely redistributed through stair step configuration.