| | 1 | [wiki:Component SocLib Components General Index] |
| | 2 | |
| | 3 | = !VciSimHelper = |
| | 4 | |
| | 5 | == 1) Functional Description == |
| | 6 | |
| | 7 | This VCI target is a synthetic component that can be used to instrument |
| | 8 | the simulation process. It can make the simulation stop, exit or crash different ways. |
| | 9 | |
| | 10 | It has four mapped register accepting only writes. |
| | 11 | |
| | 12 | Possible actions are: |
| | 13 | * Make the simulator call `sc_stop()` |
| | 14 | * Make the simulator call `exit( val )`, with a given `val` |
| | 15 | * Make the simulator throw an exception with a given value in message |
| | 16 | * Make the simulator pause (i.e. wait for a keyboard event) |
| | 17 | |
| | 18 | Registers are: |
| | 19 | * `SIMHELPER_SC_STOP` (at offset 0x0): Call `sc_stop()` |
| | 20 | * `SIMHELPER_END_WITH_RETVAL` (at offset 0x4): Call `exit(val)` |
| | 21 | * `SIMHELPER_EXCEPT_WITH_VAL` (at offset 0x8): Create a `soclib::exception::RunTimeError("Simulation yielded error level "+val)` |
| | 22 | * `SIMHELPER_PAUSE_SIM` (at offset 0xc): Pause simulation |
| | 23 | |
| | 24 | == 2) Component definition & usage == |
| | 25 | |
| | 26 | source:trunk/soclib/soclib/module/verification_component/vci_simhelper/metadata/vci_simhelper.sd |
| | 27 | |
| | 28 | See [wiki:SoclibCc/VciParameters SoclibCc/VciParameters] |
| | 29 | {{{ |
| | 30 | Uses( 'caba:vci_simhelper', **vci_parameters ) |
| | 31 | }}} |
| | 32 | |
| | 33 | == 3) CABA Implementation == |
| | 34 | |
| | 35 | === CABA sources === |
| | 36 | |
| | 37 | * interface : source:trunk/soclib/soclib/module/verification_component/vci_simhelper/caba/source/include/vci_simhelper.h |
| | 38 | * implementation : source:trunk/soclib/soclib/module/verification_component/vci_simhelper/caba/source/src/vci_simhelper.cpp |
| | 39 | |
| | 40 | |
| | 41 | === CABA Constructor parameters === |
| | 42 | |
| | 43 | {{{ |
| | 44 | VciSimhelper( |
| | 45 | sc_module_name name, // Instance name |
| | 46 | const soclib::common::IntTab &index, // Target index |
| | 47 | const soclib::common::MappingTable &mt) // Mapping Table |
| | 48 | }}} |
| | 49 | |
| | 50 | Example instanciation: |
| | 51 | {{{ |
| | 52 | VciSimhelper simhelper("simhelper", |
| | 53 | IntTab(2,3), |
| | 54 | mapping_table ); |
| | 55 | }}} |
| | 56 | |
| | 57 | === CABA Ports === |
| | 58 | |
| | 59 | * sc_in<bool> '''p_resetn''' : Global system reset |
| | 60 | * sc_in<bool> '''p_clk''' : Global system clock |
| | 61 | * soclib::common::!VciTarget<vci_param> '''p_vci''' : The VCI port |