The `recv_vec{4,8}_pv()` functions are used to implement a partial write to
a vector. As parameters they take both the value and the width of the
value.
All callers of of these functions pass `val.size()` or a variation thereof
as the width of the value. And all implementations that do anything with
the data have an assert that `val.size() == wid`.
Remove the `wid` parameter from these functions and just use `val.size()`
directly where needed. This allows to simplify the interface and also
to remove the asserts.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
To get better functionality in V0.9 and development until we
add a select that is sign aware to .part/v this patch uses
a 32 bit integer (int) for the select value. This allows a
normal Verilog integer to produce the correct results. A
warning for smaller signed index vectors is planned, but it
needs more input.
This patch adds code to free most of the memory when vvp
finishes. It also adds valgrind hooks to manage the various
memory pools. The functionality is enabled by passing
--with-valgrind to configure. It requires that the
valgrind/memcheck.h header from a recent version of
valgrind be available. It check for the existence of this
file, but not that it is new enough (version 3.1.3 is known
to not work and version 3.4.0 is known to work).
You can still use valgrind when this option is not given,
but you will have memory that is not released and the
memory pools show as a single block.
With this vvp is 100% clean for many of the tests in the
test suite. There are still a few things that need to be
cleaned up, but it should be much easier to find any real
leaks now.
Enabling this causes a negligible increase in run time and
memory. The memory could be a problem for very large
simulations. The increase in run time is only noticeable on
very short simulations where it should not matter.
This patch splits any VVP net functor that needs to access both
statically and automatically allocated state into two sub-classes,
one for handling operations on statically allocated state, the
other for handling operations on automatically allocated state.
This undoes the increase in run-time memory use introduced when
automatic task/function support was first introduced.
This patch also fixes various issues with event handling in automatic
scopes. Event expressions in automatic scopes may now reference either
statically or automatically allocated variables or arrays, or part
selects or word selects thereof. More complex expressions (e.g.
containing arithmetic or logical operators, function calls, etc.) are
not currently supported.
This patch introduces some error checking for language constructs
that may not reference automatically allocated variables. Further
error checking will follow in a subsequent patch.
This patch makes .part/pv strength aware, resolv vec8_pv
aware. vvp_net_fun_t adds vec8_pv as a virtual function
with an appropriate error default. vvp_fun_signal should
full support vec8_pv (not tested and may not be needed).
Lars-Peter Clausen
Maciej Suminski
Stephen Williams
Cary R
Arun Persaud
Martin Whitaker
steve