Maciej Kurc
ce4a0954bc
Added support for parsing attributes on parameters in Verilog frontent. Content of those attributes is ignored.
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Signed-off-by: Maciej Kurc <mkurc@antmicro.com>
2019-05-16 12:44:16 +02:00
Henner Zeller
8eb2798776
Make the generated *.tab.hh include all the headers needed to define the union.
2019-05-14 21:07:26 -07:00
Clifford Wolf
752553d8e9
Merge pull request #946 from YosysHQ/clifford/specify
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Add specify parser
2019-05-06 20:57:15 +02:00
Clifford Wolf
c7f2e93024
Merge branch 'master' of github.com:YosysHQ/yosys into clifford/specify
2019-05-06 11:46:10 +02:00
Ben Widawsky
a98069d762
verilog_parser: Fix Bison warning
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As of Bison 2.6, name-prefix is deprecated. This fixes
frontends/verilog/verilog_parser.y:99.1-34: warning: deprecated directive, use ‘%define api.prefix {frontend_verilog_yy}’ [-Wdeprecated]
%name-prefix "frontend_verilog_yy"
For details: https://www.gnu.org/software/bison/manual/html_node/Multiple-Parsers.html
Compile tested only.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
2019-05-05 19:36:27 -07:00
Clifford Wolf
70d0f389ad
Merge pull request #988 from YosysHQ/clifford/fix987
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Add approximate support for SV "var" keyword
2019-05-04 21:58:25 +02:00
Clifford Wolf
66d6ca2de2
Add support for SVA "final" keyword
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-05-04 09:25:32 +02:00
Clifford Wolf
9804c86e87
Add approximate support for SV "var" keyword, fixes #987
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-05-04 07:52:51 +02:00
Udi Finkelstein
ac10e7d96d
Initial implementation of elaboration system tasks
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(IEEE1800-2017 section 20.11)
This PR allows us to use $info/$warning/$error/$fatal **at elaboration time** within a generate block.
This is very useful to stop a synthesis of a parametrized block when an
illegal combination of parameters is chosen.
2019-05-03 03:10:43 +03:00
Clifford Wolf
64925b4e8f
Improve $specrule interface
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-04-23 22:57:10 +02:00
Clifford Wolf
4575e4ad86
Improve $specrule interface
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-04-23 22:18:04 +02:00
Clifford Wolf
71c38d9de5
Add $specrule cells for $setup/$hold/$skew specify rules
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-04-23 21:36:59 +02:00
Clifford Wolf
e807e88b60
Rename T_{RISE,FALL}_AVG to T_{RISE,FALL}_TYP to better match verilog std nomenclature
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-04-23 21:36:59 +02:00
Clifford Wolf
3cc95fb4be
Add specify parser
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-04-23 21:36:59 +02:00
Clifford Wolf
fb7f02be55
New behavior for front-end handling of whiteboxes
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-04-20 22:24:50 +02:00
Clifford Wolf
f4abc21d8a
Add "whitebox" attribute, add "read_verilog -wb"
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-04-18 17:45:47 +02:00
Clifford Wolf
b02d9c2634
Fix handling of cases that look like sva labels, fixes #862
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-10 16:27:18 -07:00
Clifford Wolf
e7a34d342e
Also add support for labels on sva module items, fixes #699
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-08 22:55:09 -08:00
Clifford Wolf
22ff60850e
Add support for SVA labels in read_verilog
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-07 11:17:32 -08:00
whitequark
efa278e232
Fix typographical and grammatical errors and inconsistencies.
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The initial list of hits was generated with the codespell command
below, and each hit was evaluated and fixed manually while taking
context into consideration.
DIRS="kernel/ frontends/ backends/ passes/ techlibs/"
DIRS="${DIRS} libs/ezsat/ libs/subcircuit"
codespell $DIRS -S *.o -L upto,iff,thru,synopsys,uint
More hits were found by looking through comments and strings manually.
2019-01-02 13:12:17 +00:00
Sylvain Munaut
58fb2ac818
verilog_parser: Properly handle recursion when processing attributes
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Fixes #737
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2018-12-14 12:48:00 +01:00
Clifford Wolf
36ea98385f
Add warning for SV "restrict" without "property"
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-11-04 15:57:17 +01:00
Clifford Wolf
5ab58d4930
Fix minor typo in error message
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-10-25 13:20:00 +02:00
Udi Finkelstein
536ae16c3a
Rename the generic "Syntax error" message from the Verilog/SystemVerilog parser into unique,
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meaningful info on the error.
Also add 13 compilation examples that triggers each of these messages.
2018-10-25 02:37:56 +03:00
Ruben Undheim
736105b046
Handle FIXME for modport members without type directly in front
2018-10-13 20:50:33 +02:00
Ruben Undheim
458a94059e
Support for 'modports' for System Verilog interfaces
2018-10-12 21:11:48 +02:00
Ruben Undheim
75009ada3c
Synthesis support for SystemVerilog interfaces
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This time doing the changes mostly in AST before RTLIL generation
2018-10-12 21:11:36 +02:00
Clifford Wolf
8fde05dfa5
Add "read_verilog -noassert -noassume -assert-assumes"
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-09-24 20:51:16 +02:00
Clifford Wolf
eb452ffb28
Added support for ommited "parameter" in Verilog-2001 style parameter decl in SV mode
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-09-23 10:32:54 +02:00
Udi Finkelstein
fbfc677df3
Fixed all known specify/endspecify issues, without breaking 'make test'.
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Some the of parser fixes may look strange but they were needed to avoid shift/reduce conflicts,
due to the explicit parentheses in path_delay_value, and the mintypmax values without parentheses
2018-08-20 17:27:45 +03:00
Udi Finkelstein
95241c8f4d
Yosys can now parse https://github.com/verilog-to-routing/vtr-verilog-to-routing/blob/master/vtr_flow/primitives.v ,
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(specify block ignored).
Must use 'read_verilog -defer' due to a parameter not assigned a default value.
2018-08-20 00:08:08 +03:00
Udi Finkelstein
28cfc75a90
A few minor enhancements to specify block parsing.
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Just remember specify blocks are parsed but ignored.
2018-08-15 20:14:52 +03:00
Clifford Wolf
3d27c1cc80
Merge pull request #513 from udif/pr_reg_wire_error
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Add error checking for reg/wire/logic misuse - PR now passes 'make test' (plus a new test)
2018-08-15 13:35:41 +02:00
Udi Finkelstein
8b7580b0a1
Detect illegal port declaration, e.g input/output/inout keyword must be the first.
2018-06-06 22:27:25 +03:00
Udi Finkelstein
73d426bc87
Modified errors into warnings
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No longer false warnings for memories and assertions
2018-06-05 18:03:22 +03:00
Clifford Wolf
2d7f3123f0
Add statement labels for immediate assertions
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-04-13 11:52:28 +02:00
Clifford Wolf
66ffc99695
Allow "property" in immediate assertions
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-04-12 14:28:28 +02:00
Clifford Wolf
5ea2c53604
Add read_verilog anyseq/anyconst/allseq/allconst attribute support
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-04-06 14:35:11 +02:00
Udi Finkelstein
6378e2cd46
First draft of Verilog parser support for specify blocks and parameters.
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The only functionality of this code at the moment is to accept correct specify syntax and ignore it.
No part of the specify block is added to the AST
2018-03-27 14:34:00 +02:00
Udi Finkelstein
2b9c75f8e3
This PR should be the base for discussion, do not merge it yet!
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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
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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
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(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
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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