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253 Commits

Author SHA1 Message Date
Udi Finkelstein 2b9c75f8e3 This PR should be the base for discussion, do not merge it yet! 
It correctly detects reg/wire mix and incorrect use on blocking,nonblocking assignments within blocks and assign statements.

What it DOES'T do:
Detect registers connected to output ports of instances.

Where it FAILS:
memorty nonblocking assignments causes spurious (I assume??) errors on yosys-generated "_ADDR", "_DATA", "EN" signals.

You can test it with tests/simple/reg_wire_error.v (look inside for the comments to enable/disable specific lines)
 2018-03-11 23:09:34 +02:00
Clifford Wolf eb67a7532b Add $allconst and $allseq cell types 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-02-23 13:14:47 +01:00
Clifford Wolf 777f2881d8 Add Verilog "automatic" keyword (ignored in synthesis) 2017-11-23 08:51:38 +01:00
Clifford Wolf 5b6e52118c Accept real-valued delay values 2017-11-18 10:01:30 +01:00
Udi Finkelstein 72a08eca3d Resolved classical Bison IF/THEN/ELSE shift/reduce conflict using the textbook solution 
(Oreilly 'Flex & Bison' page 189)
 2017-09-30 06:39:07 +03:00
Clifford Wolf 2cc09161ff Fix ignoring of simulation timings so that invalid module parameters cause syntax errors 2017-09-26 01:52:59 +02:00
Clifford Wolf 8f8baccfde Fix generation of vlogtb output in yosys-smtbmc for "rand reg" and "rand const reg" 2017-06-07 12:30:24 +02:00
Clifford Wolf 129984e115 Fix handling of Verilog ~& and ~| operators 2017-06-01 12:43:21 +02:00
Clifford Wolf e91548b33e Add support for localparam in module header 2017-04-30 17:20:30 +02:00
Clifford Wolf 5b3b5ffc8c Allow $anyconst, etc. in non-formal SV mode 2017-03-01 10:47:05 +01:00
Clifford Wolf 5f1d0b1024 Add $live and $fair cell types, add support for s_eventually keyword 2017-02-25 10:36:39 +01:00
Clifford Wolf 00dba4c197 Add support for SystemVerilog unique, unique0, and priority case 2017-02-23 16:33:19 +01:00
Clifford Wolf 34d4e72132 Added SystemVerilog support for ++ and -- 2017-02-23 11:21:33 +01:00
Clifford Wolf 848062088c Add checker support to verilog front-end 2017-02-09 13:51:44 +01:00
Clifford Wolf ef4a28e112 Add SV "rand" and "const rand" support 2017-02-08 14:38:15 +01:00
Clifford Wolf 6abf79eb28 Further improve cover() support 2017-02-04 17:02:13 +01:00
Clifford Wolf 3928482a3c Add $cover cell type and SVA cover() support 2017-02-04 14:14:26 +01:00
Clifford Wolf fea528280b Add "enum" and "typedef" lexer support 2017-01-17 17:33:52 +01:00
Clifford Wolf 70d7a02cae Added support for hierarchical defparams 2016-11-15 13:35:19 +01:00
Clifford Wolf bdc316db50 Added $anyseq cell type 2016-10-14 15:24:03 +02:00
Clifford Wolf 6f41e5277d Removed $aconst cell type 2016-08-30 19:09:56 +02:00
Clifford Wolf eae390ae17 Removed $predict again 2016-08-28 21:35:33 +02:00
Clifford Wolf 1276c87a56 Added read_verilog -norestrict -assume-asserts 2016-08-26 23:35:27 +02:00
Clifford Wolf 4be4969bae Improved verilog parser errors 2016-08-25 11:44:37 +02:00
Clifford Wolf 7f755dec75 Fixed bug in parsing real constants 2016-08-06 13:16:23 +02:00
Clifford Wolf 4056312987 Added $anyconst and $aconst 2016-07-27 15:41:22 +02:00
Clifford Wolf 5b944ef11b Fixed a verilog parser memory leak 2016-07-25 16:37:58 +02:00
Clifford Wolf 7a67add95d Fixed parsing of empty positional cell ports 2016-07-25 12:48:03 +02:00
Clifford Wolf 9aae1d1e8f No tristate warning message for "read_verilog -lib" 2016-07-23 11:56:53 +02:00
Clifford Wolf 5c166e76e5 Added $initstate cell type and vlog function 2016-07-21 14:23:22 +02:00
Clifford Wolf d7763634b6 After reading the SV spec, using non-standard predict() instead of expect() 2016-07-21 13:34:33 +02:00
Clifford Wolf 721f1f5ecf Added basic support for $expect cells 2016-07-13 16:56:17 +02:00
Ruben Undheim 545bcb37e8 Allow defining input ports as "input logic" in SystemVerilog 2016-06-20 20:16:37 +02:00
Ruben Undheim 178ff3e7f6 Added support for SystemVerilog packages with localparam definitions 2016-06-18 10:53:55 +02:00
Clifford Wolf 5a09fa4553 Fixed handling of parameters and const functions in casex/casez pattern 2016-04-21 15:31:54 +02:00
Clifford Wolf 33c10350b2 Fixed Verilog parser fix and more similar improvements 2016-03-15 12:22:31 +01:00
Andrew Becker 81d4e9e7c1 Use left-recursive rule for cell_port_list in Verilog parser. 2016-03-15 12:03:40 +01:00
Clifford Wolf 34f2b84fb6 Fixed handling of parameters and localparams in functions 2015-11-11 10:54:35 +01:00
Clifford Wolf 5308c1e02a Fixed bug in verilog parser 2015-10-15 15:19:23 +02:00
Clifford Wolf ba4cce9f19 Added support for "parameter" and "localparam" in global context 2015-10-07 14:59:08 +02:00
Clifford Wolf a3a13cce32 Fixed detection of "task foo(bar);" syntax error 2015-09-22 21:34:21 +02:00
Clifford Wolf e4ef000b70 Adjust makefiles to work with out-of-tree builds 
This is based on work done by Larry Doolittle
 2015-08-12 15:04:44 +02:00
Clifford Wolf 6c84341f22 Fixed trailing whitespaces 2015-07-02 11:14:30 +02:00
Clifford Wolf 1f1deda888 Added non-std verilog assume() statement 2015-02-26 18:47:39 +01:00
Clifford Wolf dc1a0f06fc Parser support for complex delay expressions 2015-02-20 10:21:36 +01:00
Clifford Wolf e0e6d130cd YosysJS stuff 2015-02-19 13:36:54 +01:00
Clifford Wolf 4f68a77e3f Improved read_verilog support for empty behavioral statements 2015-02-10 12:17:29 +01:00
Clifford Wolf 1282a113da Fixed supply0/supply1 with many wires 2014-12-11 13:56:20 +01:00
Clifford Wolf 87333f3ae2 Added warning for use of 'z' constants in HDL 2014-11-14 19:59:50 +01:00
Clifford Wolf 4e5350b409 Fixed parsing of nested verilog concatenation and replicate 2014-11-12 19:10:35 +01:00
Clifford Wolf a21481b338 Fixed parsing of "module mymod #( parameter foo = 1, bar = 2 ..." 2014-10-30 14:01:02 +01:00
Clifford Wolf f9c096eeda Added support for task and function args in parentheses 2014-10-27 13:21:57 +01:00
William Speirs fad0b0c506 Updated lexers & parsers to include prefixes 2014-10-15 00:48:19 +02:00