Emulation software and a method of emulating behaviour of a device containing one or more DSP cores

Emulation software is provided which is arranged to capture a sequence of configuration operations sent by firmware 20 configuring a device containing one or more DSP cores, and convert them to a table of operations which can be loaded by the firmware in place of the configuration operations. This may facilitate reduction of code size. The emulation software may also emulate behaviour of the device when running core firmware as software under test, SUT, via a software interface to the SUT in place of the interface provided by the device, the software interface including definitions of core datatypes, a simulation of storage by the device, and a device simulation based on a device register map description (Figure 2).