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46 Commits

Author SHA1 Message Date
Stephen Williams 679ef3a380 Collapse concatenation of constants into concatenated constant. 2012-12-20 11:02:29 -08:00
Stephen Williams 367d7bf94b Blend NetPartSelect(PV) objects into NetConcat 
If a signal s driven by multiple non-overlapping NetPartSelect(PV)
objects, then combine them into a single NetConcat object. This
eliminates the need for resolvers in the target.
 2012-12-19 19:01:22 -08:00
Arun Persaud f5aafc32f9 updated FSF-address 2012-08-29 10:12:10 -07:00
Cary R 391073a750 Update __vpiNamedEvent to remove struct and remove extra class statements 
The clang compiler does not like using struct to reference a class object.
This patch removes all the struct keywords for __vpiNamedEvent objects
since they are now a class and can be called without a struct/class
qualifier.

This patch also removes all the extra class qualifiers from the rest of
the source code.
 2012-02-12 13:22:32 -08:00
Cary R 20f3d7c26c Remove some more cppcheck warnings. 
This patch removes some more simple cppcheck warnings and updates two of
the cppcheck suppression files.
 2011-01-12 16:34:42 -08:00
Cary R bb5ca97f2d Fix some -Wextra warnings and some other bug fixes/enhancements. 
This patch covers more than it should. It removes many of the -Wextra
warnings in the main ivl directory. It also makes some minor code
improvements, adds support for constant logicals in eval_tree (&&/||),
adds support for correctly sign extending === and !==, it starts to
standardize the eval_tree debug messages and fixes a strength bug
in the target interface (found with -Wextra). The rest of the warnings
and eval_tree() rework will need to come as a second patch.
 2010-11-02 11:05:11 -07:00
Cary R 225ca1e205 Change iterators to use prefix ++ since it is more efficient. 
This patch changes all the iterator code to use a prefix ++ instead
of postfix since it is more efficient (no need for a temporary). It
is likely that the compiler could optimize this away, but lets make
it efficient from the start.
 2010-11-02 10:43:16 -07:00
Stephen Williams b1d9d1bda2 Dramatically improve NetScope child lookup. 
In physical models, there are often very many child scopes in any
given scope. The lookup for child scope needs to be optimized.
 2009-12-08 15:14:55 -08:00
Stephen Williams 27410f5d88 Remove the now obsolete NetNet list in NetScopes. 
Now that NetNet objects in NetScopes are kept in a map, remove the
linked list for scanning them. This improves the lookup process from
an O(e**N) process to more like O(log(N)). This matters for very
large designs.
 2008-10-26 20:42:11 -07:00
Stephen Williams e91243e1c6 Elaborate abs() is continuous assign expressions. 
In continuous assign expressions, the abs() operator can't easily be
burried in generic unary handling, so add the IVL_LPM_ABS type and
generate it as needed.
 2008-05-05 22:00:39 -07:00
Cary R 5e8a1bd8cc Add power operator (**) for real values in a continuous assignment. 
This patch adds the power operator for real values in a continuous
assignment.
 2008-01-31 16:48:52 -08:00
steve 75ad90534b Generalize signals to carry types. 2005-07-07 16:22:49 +00:00
steve 739a1839ed Do sign extension of structuran nets. 2005-05-24 01:44:27 +00:00
steve 97f83ffbe3 laborate reduction gates into LPM_RED_ nodes. 2005-02-03 04:56:20 +00:00
steve e4ae832153 Clean up spurious trailing white space. 2004-10-04 01:10:51 +00:00
steve c794aa02b8 Fix intermix of node functors and node delete. 2002-08-16 05:18:27 +00:00
steve 52bf4e613f conditional ident string using autoconfig. 2002-08-12 01:34:58 +00:00
steve bc86bd4efa Remove useless error messages. 2002-08-10 22:07:38 +00:00
steve 53d8cdd9f8 Add support for memory words in l-value of 
non-blocking assignments, and remove the special
 NetAssignMem_ and NetAssignMemNB classes.
 2002-06-05 03:44:25 +00:00
steve 91a755d0e8 Add support for memory words in l-value of 
blocking assignments, and remove the special
 NetAssignMem class.
 2002-06-04 05:38:43 +00:00
steve d350620315 Support multiple root modules (Philip Blundell) 2001-10-19 21:53:24 +00:00
steve b825f8d2b2 Create a config.h.in file to hold all the config 
junk, and support gcc 3.0. (Stephan Boettcher)
 2001-07-25 03:10:48 +00:00
steve 457d193238 Fix cases where signal iteration might die early. 2000-11-19 20:48:30 +00:00
steve da926fa08b Watch out in functor, it may delete the last signal. 2000-11-18 04:53:04 +00:00
steve 89d7176734 Add support for modulus (Eric Aardoom) 2000-09-17 21:26:15 +00:00
steve d677f226f3 Support <= in synthesis of DFF and ram devices. 2000-08-01 02:48:41 +00:00
steve 741b17245d Handle some edge cases during node scans. 2000-07-16 04:56:07 +00:00
steve 2a08824ae9 Detect muxing Vz as a bufufN. 2000-07-15 05:13:43 +00:00
steve 8d8f1e2401 Move signal tables to the NetScope class. 2000-05-02 00:58:11 +00:00
steve 2094a2f466 Catch some simple identity compareoptimizations. 2000-04-20 00:28:03 +00:00
steve 74c43032b3 Clean up unneeded NetEvent objects. 2000-04-18 04:50:19 +00:00
steve 726f7b8b11 Synthesis of comparator in expressions. 
Connect the NetEvent and related classes
 together better.
 2000-04-16 23:32:18 +00:00
steve 4493e968da Finally remove the NetNEvent and NetPEvent classes, 
Get synthesis working with the NetEvWait class,
 and get started supporting multiple events in a
 wait in vvm.
 2000-04-12 20:02:52 +00:00
steve 694ff934af Add support for integer division. 2000-04-01 21:40:22 +00:00
steve b734ecf02f Macintosh compilers do not support ident. 2000-02-23 02:56:53 +00:00
steve e77bcf6910 Include some block matching from Larry. 2000-02-13 04:35:43 +00:00
steve aa8908c52f Multiplication all the way to simulation. 2000-01-13 03:35:35 +00:00
steve 87d6df5204 Handle nodes running out during node scan. 2000-01-02 17:57:20 +00:00
steve b6d1bb1fa7 Propogate constant 0 in low bits of adders. 1999-12-30 04:19:12 +00:00
steve 4de8ba489d Rewrite the cprop functor to use the functor_t interface. 1999-12-17 06:18:15 +00:00
steve 3e2bb85f58 Synthesize LPM_RAM_DQ for writes into memories. 1999-12-05 02:24:08 +00:00
steve b30b695ff0 Redo synth to use match_proc_t scanner. 1999-12-01 06:06:16 +00:00
steve 9d6392fda9 Turn NetTmp objects into normal local NetNet objects, 
and add the nodangle functor to clean up the local
 symbols generated by elaboration and other steps.
 1999-11-18 03:52:19 +00:00
steve 89881adece Add the synth functor to do generic synthesis 
and add the LPM_FF device to handle rows of
 flip-flops.
 1999-11-01 02:07:40 +00:00
steve 7d876f7735 xnfsyn generates DFF objects for XNF output, and 
properly rewrites the Design netlist in the process.
 1999-07-18 05:52:46 +00:00
steve 9754507eb0 Add the functor interface for functor transforms. 1999-07-17 22:01:13 +00:00