Previously, in any given VPI callback, if the callback body registered
the same callback, that registering would be processed in the currently
executing call to the call*Cbs function. In the worse case, this could
lead to an infinite loop.
Includes `timescale, $printtimescale, $timeformat.
VL_TIME_MULTIPLIER, VL_TIME_PRECISION, VL_TIME_UNIT have been removed
and the time precision must now match the SystemC time precision.
To get closer behavior to older versions, use e.g. --timescale-override
"1ps/1ps".
Return the vpiModule when it is searched for by name and not the vpiScope,
now that we actually have it (one step further to supporting vpiModule in
complete).
Signed-off-by: Stefan Wallentowitz <stefan@wallentowitz.de>
Signed-off-by: Wilson Snyder <wsnyder@wsnyder.org>
Add very basic support for vpiModule. Basically it allows to traverse
the module tree to find a variable etc. It does not support more than
vpi_iterate and vpi_scan for vpiModule along basic operations like
vpi_get_str on vpiModule.
The support is added non-intrusively to non-VPI verilator runs. It
essentially:
- Tracks the creation of cell instances and keeps them alive until
the emit phase. They are there converted to scopes if modules.
- Emits empty (don't add anything during construction)
VerilatedScopes for all inlined modules, only for those inlined
modules that are on the hierarchical path to public variables.
- Adds VerilatedHierarchy as abstraction to structure of the
scopes. It is only created for VPI designs. It allows to traverse
the hierarchy from the top (NULL).
Signed-off-by: Stefan Wallentowitz <stefan@wallentowitz.de>
Signed-off-by: Wilson Snyder <wsnyder@wsnyder.org>
VerilatedVpi::callCbs() can be used by the user to signal
simulation-related callbacks, e.g.
VerilatedVpi::callCbs(cbStartOfSimulation).
The information if any callbacks have been called may be important to
drive an evaluation until no further changes are observed.
Signed-off-by: Lukasz Dalek <ldalek@antmicro.com>
Signed-off-by: Philipp Wagner <mail@philipp-wagner.com>
Signed-off-by: Stefan Wallentowitz <stefan@wallentowitz.de>
Signed-off-by: Wilson Snyder <wsnyder@wsnyder.org>
