Abstract: A hybrid emulation system includes a hardware emulation system, a simulation system, and a co-simulation interface. The hardware emulation system emulates a first portion of a design under test (DUT) during a hybrid emulation. The emulation runs in a first time domain local to the hardware emulation system. The simulation system simulates a second portion of the DUT during the hybrid emulation. The simulation runs in a second time domain local to the simulation system. The first time domain and the second time domain are unsynchronized. The co-simulation interface is coupled to the simulation system and the hardware emulation system. The co-simulation interface communicates transactions and events between the hardware emulation system and the simulation system. For each transaction, the co-simulation interface captures a transaction time in the first time domain, and for each event, the co-simulation interface captures an event time in the first time domain.

Abstract: One or more embodiments disclosed herein pertain to a hybrid emulation system for hybrid emulation of a design under test (DUT). The system comprises a hardware emulation system to emulate a first portion of the DUT during the hybrid emulation. The hardware emulation system includes emulated registers for the first portion of the DUT. The hybrid emulation system also comprises a simulation system to simulate a second portion of the DUT during the hybrid emulation. The hybrid emulation system additionally comprises a configuration file that identifies a subset of the emulated registers. The simulation system is configured with the configuration file to selectively mirror, during the hybrid emulation, the subset of the emulated registers identified by the configuration file.