Method and apparatus for testing microarchitectural using tests writings in microcode

摘要

The invention relates to a device (10) of test of a computer microarchitecture comprising a reprogrammable memory (40) of microcode, which comprises: a microcode connected to one or several macroinstructions (11), and a microcode reprogrammed to be tested, the computer microarchitecture. It is characterized in that the microcode reprogrammed of the test comprises a sequence of microinstructions (41i) so as to be tested, the computer microarchitecture. It may also comprise a distributor (50) which receives the sequence of microinstructions and sends the outputs (51i); and the units of the invention (61i) which receive the outputs and perform microinstructions. The computer microarchitecture is preferably capable of taking up several sets of instructions. The present invention also relates to a corresponding process and such a method of test in which a macroinstruction is applied to a particular sequence of microinstructions; and the particular sequence of microinstructions is replaced by an arbitrary microinstructions which comprises the test.