Method and apparatus for testing microarchitectural features by using tests written in microcode

摘要

An apparatus, and a corresponding method, are used for testing a computer microarchitecture. The apparatus includes means for providing reprogrammed microcode. The means for providing the reprogrammed microcode includes means for reprogramming microcode, and means for storing reprogrammed microcode. The storing means includes microcode related to one or more macroinstructions, and reprogrammed test microcode for testing the computer microarchitecture, where the reprogrammed test microcode includes a sequence of microinstructions executed to test the computer microarchitecture. Finally, the apparatus includes means for sequencing the sequence of microinstructions and producing an address for the reprogrammed test microcode.