A decoder that includes a micro-alias register to store information from a micro-operation for use by later micro-operations in the micro-operation flow. The decoder includes one or more XLAT PLAs that produces PLA control micro-operations ("Cuops"), a microcode sequencing unit that produces microcode...http://www.google.ca/patents/US5559974?utm_source=gb-gplus-sharePatent US5559974 - Decoder having independently loaded micro-alias and macro-alias registers accessible simultaneously by one micro-operation
