GIET-VM / SIM Driver

The sim_driver.c​ and sim_driver.h​ files define the SIM driver.

This driver supports the vci_sim_helper component, that is a pseudo hardware component available in the SoCLib library, and providing a monitoring service in a virtual prototyping environment.

There is at most one such component in the architecture.

The SEG_SIM_BASE address must be defined in the hard_config.h file.

The addressable registers map, defining the possible operations is defined here​.

void _sim_helper_access( unsigned int register_index, unsigned int value, unsigned int* retval );

This function accesses the Simulation Helper registers:

• If access is on SIMHELPER_SC_STOP, the simulation will stop.
• If access is on SIMHELPER_CYCLES, value is written in retval buffer.