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51 Commits

Author SHA1 Message Date
Miodrag Milanovic b76c72056b set default_nettype to wire for resetall 2022-08-10 13:28:19 +02:00
Miodrag Milanovic 545a3417c8 resetall does not affect text defines, but undefineall does 2022-08-10 11:38:50 +02:00
Thomas Sailer 4cd2f03e36 preprocessor: do not destroy double slash escaped identifiers 
The preprocessor currently destroys double slash containing escaped
identifiers (for example \a//b ). This is due to next_token trying to
convert single line comments (//) into /* */ comments. This then leads
to an unintuitive error message like this:
ERROR: syntax error, unexpected '*'

This patch fixes the error by recognizing escaped identifiers and
returning them as single token. It also adds a testcase.
 2021-12-15 18:06:02 -07:00
Zachary Snow 3156226233 verilog: save and restore overwritten macro arguments 2021-07-28 21:52:16 -04:00
Claire Xenia Wolf 72787f52fc Fixing old e-mail addresses and deadnames 
s/((Claire|Xen|Xenia|Clifford)\s+)+(Wolf|Xen)\s+<(claire|clifford)@(symbioticeda.com|clifford.at|yosyshq.com)>/Claire Xenia Wolf <claire@yosyshq.com>/gi;
s/((Nina|Nak|N\.)\s+)+Engelhardt\s+<nak@(symbioticeda.com|yosyshq.com)>/N. Engelhardt <nak@yosyshq.com>/gi;
s/((David)\s+)+Shah\s+<(dave|david)@(symbioticeda.com|yosyshq.com|ds0.me)>/David Shah <dave@ds0.me>/gi;
s/((Miodrag)\s+)+Milanovic\s+<(miodrag|micko)@(symbioticeda.com|yosyshq.com)>/Miodrag Milanovic <micko@yosyshq.com>/gi;
s,https?://www.clifford.at/yosys/,http://yosyshq.net/yosys/,g;
 2021-06-08 00:39:36 +02:00
Marcelina Kościelnicka 0505c604e7 preproc: Fix up conditional handling. 
Fixes #2710.
Fixes #2711.
 2021-03-30 02:29:26 +02:00
Zachary Snow 1ec5994100 verilog: fix handling of nested ifdef directives 
- track depth so we know whether to consider higher-level elsifs
- error on unmatched endif/elsif/else
 2021-03-01 12:28:33 -05:00
Zachary Snow 220cb1f7bb verilog: error on macro invocations with missing argument lists 
This would previously complain about an undefined internal macro if the
unapplied macro had not already been used. If it had, it would
incorrectly use the arguments from the previous invocation.
 2021-02-19 09:18:41 -05:00
Zachary Snow 27257a419f verilog: strip leading and trailing spaces in macro args 2021-01-28 11:26:35 -05:00
Zachary Snow 4fadcc8f25 verilog: allow spaces in macro arguments 2021-01-20 08:49:58 -07:00
georgerennie c1f6ce8b33 Fix SYNTHESIS always being defined in Verilog frontend 2020-12-01 01:37:19 +00:00
Anonymous Maarten 504f220619 MSVC does not understand __builtin_unreachable 2020-06-17 15:10:08 +02:00
Rupert Swarbrick 044ca9dde4 Add support for SystemVerilog-style `define to Verilog frontend 
This patch should support things like

  `define foo(a, b = 3, c)   a+b+c

  `foo(1, ,2)

which will evaluate to 1+3+2. It also spots mistakes like

  `foo(1)

(the 3rd argument doesn't have a default value, so a call site is
required to set it).

Most of the patch is a simple parser for the format in preproc.cc, but
I've also taken the opportunity to wrap up the "name -> definition"
map in a type, rather than use multiple std::map's.

Since this type needs to be visible to code that touches defines, I've
pulled it (and the frontend_verilog_preproc declaration) out into a
new file at frontends/verilog/preproc.h and included that where
necessary.

Finally, the patch adds a few tests in tests/various to check that we
are parsing everything correctly.
 2020-03-27 16:08:26 +00:00
Rodrigo Alejandro Melo e9dc2759c4 Fixed some missing "verilog_" in documentation 2019-12-13 10:17:05 -03:00
Clifford Wolf 65f197e28f Add check for valid macro names in macro definitions 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-11-07 13:30:03 +01:00
Jim Paris 4a229e5b95 Support SystemVerilog `` extension for macros 2018-05-17 00:09:56 -04:00
Jim Paris 872d8d49e9 Skip spaces around macro arguments 2018-05-17 00:06:49 -04:00
Clifford Wolf a96c775a73 Add support for "yosys -E" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-01-07 16:36:13 +01:00
William D. Jones abc5b4b8ce Accommodate Windows-style paths during include-file processing. 2017-11-14 16:16:24 -05:00
Clifford Wolf 2c04d883b1 Minor coding style fix 2017-09-26 13:50:14 +02:00
combinatorylogic 64ca0be971 Adding support for string macros and macros with arguments after include 2017-09-21 18:25:02 +01:00
Clifford Wolf f0db8ffdbc Add support for `resetall compiler directive 2017-04-26 16:09:41 +02:00
Clifford Wolf 088f9c9cab Fix verilog pre-processor for multi-level relative includes 2017-03-14 17:30:20 +01:00
Clifford Wolf ecdc22b06c Added support for macros as include file names 2016-11-28 14:50:17 +01:00
Clifford Wolf a926a6afc2 Remember global declarations and defines accross read_verilog calls 2016-11-15 12:42:43 +01:00
Clifford Wolf f13e387321 SystemVerilog also has assume(), added implicit -D FORMAL 2015-10-13 14:21:20 +02:00
Clifford Wolf 6c84341f22 Fixed trailing whitespaces 2015-07-02 11:14:30 +02:00
Clifford Wolf ef151b0b30 Fixed handling of "//" in filenames in verilog pre-processor 2015-02-14 08:41:03 +01:00
Clifford Wolf 1bd67d792e Define YOSYS and SYNTHESIS in preproc 2015-01-02 17:11:54 +01:00
Clifford Wolf c5eb5e56b8 Re-introduced Yosys::readsome() helper function 
(f.read() + f.gcount() made problems with lines > 16kB)
 2014-10-23 10:58:36 +02:00
Clifford Wolf c3e9922b5d Replaced readsome() with read() and gcount() 2014-10-15 01:12:53 +02:00
Clifford Wolf 8263f6a74a Fixed win32 troubles with f.readsome() 2014-10-11 11:36:22 +02:00
Clifford Wolf bbd808072b Added format __attribute__ to stringf() 2014-10-10 17:22:08 +02:00
Clifford Wolf 19cff41eb4 Changed frontend-api from FILE to std::istream 2014-08-23 15:03:55 +02:00
Clifford Wolf 6d56172c0d Fixed line numbers when using here-doc macros 2014-08-14 22:26:30 +02:00
Clifford Wolf f53984795d Added support for non-standard """ macro bodies 2014-08-13 13:03:38 +02:00
Clifford Wolf 1cb25c05b3 Moved some stuff to kernel/yosys.{h,cc}, using Yosys:: namespace 2014-07-31 13:19:47 +02:00
Clifford Wolf 7daad40ca4 Fixed counting verilog line numbers for "// synopsys translate_off" sections 2014-07-30 20:18:48 +02:00
Clifford Wolf e605af8a49 Fixed Verilog pre-processor for files with no trailing newline 2014-07-29 20:14:25 +02:00
Clifford Wolf 7bd2d1064f Using log_assert() instead of assert() 2014-07-28 11:27:48 +02:00
Clifford Wolf 02e6f2c5be Added Verilog support for "`default_nettype none" 2014-02-17 14:28:52 +01:00
Clifford Wolf 13359d65ba Fixed parsing of verilog macros at end of line 2014-01-18 19:22:20 +01:00
Clifford Wolf 1dcbba1abf Fixed parsing of non-arg macro calls followed by "(" 2013-12-27 16:25:27 +01:00
Clifford Wolf 72026a934e Fixed parsing of macros with no arguments and expansion text starting with "(" 2013-12-27 15:05:52 +01:00
Clifford Wolf fbd06a1afc Added elsif preproc support 2013-12-18 13:41:36 +01:00
Clifford Wolf 921064c200 Added support for macro arguments 2013-12-18 13:21:02 +01:00
Clifford Wolf a362fd81ae Fixed O(n^2) performance bug in verilog preprocessor 2013-11-22 14:08:43 +01:00
Clifford Wolf e4429c480e Enable {* .. *} feature per default (removes dependency to REJECT feature in flex) 2013-11-22 12:46:02 +01:00
Johann Glaser a99c224157 Added support for include directories with the new '-I' argument of the 
'read_verilog' command
 2013-08-20 15:48:16 +02:00
Johann Glaser 10a195c0a1 added option '-Dname[=definition]' to command 'read_verilog' 2013-05-19 17:07:52 +02:00