An apparatus is contemplated for storing and providing configuration data to a microprocessor. The apparatus has a core, disposed on a die, and a fuse array, disposed on the die and coupled to the core, where the fuse array comprises a plurality of semiconductor fuses programmed with compressed configuration data for the core, where the compressed configuration data is generated by compression of data within a virtual fuse array that corresponds to the core, and where the core accesses and decompresses the compressed configuration data upon power-up/reset, for initialization of elements within the core.