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Diffstat (limited to 'doc/using/Simulation.rst')
| -rw-r--r-- | doc/using/Simulation.rst | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/doc/using/Simulation.rst b/doc/using/Simulation.rst index ba31c8d5c..012a15621 100644 --- a/doc/using/Simulation.rst +++ b/doc/using/Simulation.rst @@ -14,11 +14,10 @@ invoking a program. Contrary to most programming languages, there is no standard method in VHDL to obtain the arguments or to set the exit status. -In GHDL, it is impossible to pass parameters to your design. A later version -could do it through the generic interfaces of the top entity. - -However, the GHDL runtime behaviour can be modified with some options; for -example, it is possible to stop simulation after a certain time. +However, the GHDL runtime behaviour can be modified with some options. For +example, it is possible to pass parameters to your design through the generic +interfaces of the top entity. It is also possible to stop simulation after a +certain time. The exit status of the simulation is ``EXIT_SUCCESS`` (0) if the simulation completes, or ``EXIT_FAILURE`` (1) in case of error @@ -26,7 +25,15 @@ simulation completes, or ``EXIT_FAILURE`` (1) in case of error Here is the list of the most useful options. Some debugging options are also available, but not described here. The :option:`--help` option lists -all options available, including the debugging one. +all options available, including the debugging ones. + +.. option:: -gGENERIC=VALUE + + Set value `VALUE` to generic with name `GENERIC`. + + .. WARNING:: + This is currently a run option; but in the future it will be deprecated to + become an elaboration option only. .. option:: --assert-level<=LEVEL> |