ModelSim SE User's Manual - Electrical and Computer Engineering

Registering VPI applications
Example
Registering VPI applications UM-563
Each VPI application must register its system tasks and functions and its callbacks with the
simulator. To accomplish this, one or more user-created registration routines must be called
at simulation startup. Each registration routine should make one or more calls to
vpi_register_systf() to register user-defined system tasks and functions and
vpi_register_cb() to register callbacks. The registration routines must be placed in a table
named vlog_startup_routines so that the simulator can find them. The table must be
terminated with a 0 entry.
PLI_INT32 MyFuncCalltf( PLI_BYTE8 *user_data )
{ ... }
PLI_INT32 MyFuncCompiletf( PLI_BYTE8 *user_data )
{ ... }
PLI_INT32 MyFuncSizetf( PLI_BYTE8 *user_data )
{ ... }
PLI_INT32 MyEndOfCompCB( p_cb_data cb_data_p )
{ ... }
PLI_INT32 MyStartOfSimCB( p_cb_data cb_data_p )
{ ... }
void RegisterMySystfs( void )
{
}
vpiHandle tmpH;
s_cb_data callback;
s_vpi_systf_data systf_data;
systf_data.type = vpiSysFunc;
systf_data.sysfunctype = vpiSizedFunc;
systf_data.tfname = "$myfunc";
systf_data.calltf = MyFuncCalltf;
systf_data.compiletf = MyFuncCompiletf;
systf_data.sizetf = MyFuncSizetf;
systf_data.user_data = 0;
tmpH = vpi_register_systf( &systf_data );
vpi_free_object(tmpH);
callback.reason = cbEndOfCompile;
callback.cb_rtn = MyEndOfCompCB;
callback.user_data = 0;
tmpH = vpi_register_cb( &callback );
vpi_free_object(tmpH);
callback.reason = cbStartOfSimulation;
callback.cb_rtn = MyStartOfSimCB;
callback.user_data = 0;
tmpH = vpi_register_cb( &callback );
vpi_free_object(tmpH);
void (*vlog_startup_routines[ ] ) () = {
RegisterMySystfs,
0 /* last entry must be 0 */
};
ModelSim SE User’s Manual