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240 Commits

Author SHA1 Message Date
whitequark eae88df016 manual: fix typo. 2020-08-27 16:34:48 +00:00
whitequark 00e7dec7f5 Replace "ILANG" with "RTLIL" everywhere. 
The only difference between "RTLIL" and "ILANG" is that the latter is
the text representation of the former, as opposed to the in-memory
graph representation. This distinction serves no purpose but confuses
people: it is not obvious that the ILANG backend writes RTLIL graphs.

Passes `write_ilang` and `read_ilang` are provided as aliases to
`write_rtlil` and `read_rtlil` for compatibility.
 2020-08-26 17:29:32 +00:00
Marcelina Kościelnicka 2db270cbc7 Add latches to the manual. 2020-06-26 23:27:14 +02:00
Marcelina Kościelnicka 80a0cf9bb8 Add a few more gate types to the manual. 2020-06-26 23:27:14 +02:00
Marcelina Kościelnicka b0bee396a8 Add new builtin FF types 
The new types include:

- FFs with async reset and enable (`$adffe`, `$_DFFE_[NP][NP][01][NP]_`)
- FFs with sync reset (`$sdff`, `$_SDFF_[NP][NP][01]_`)
- FFs with sync reset and enable, reset priority (`$sdffs`, `$_SDFFE_[NP][NP][01][NP]_`)
- FFs with sync reset and enable, enable priority (`$sdffce`, `$_SDFFCE_[NP][NP][01][NP]_`)
- FFs with async reset, set, and enable (`$dffsre`, `$_DFFSRE_[NP][NP][NP][NP]_`)
- latches with reset or set (`$adlatch`, `$_DLATCH_[NP][NP][01]_`)

The new FF types are not actually used anywhere yet (this is left
for future commits).
 2020-06-23 15:40:02 +02:00
whitequark 7191dd16f9 Use C++11 final/override keywords. 2020-06-18 23:34:52 +00:00
whitequark fbb346ea91 flatten: preserve original object names via hdlname attribute. 2020-06-08 20:19:41 +00:00
Xiretza 8b0ec3c3a2
Use in-tree include directory in manual build 
This is basically the same issue as in tests/various/plugin.sh,
which uses yosys-config to compile a plugin. `yosys-config --cxxflags`
points to `$PREFIX/share/` (/usr/local/share by default), which might
not exist yet or might be out of date. Building directly from the
headers in ./share/ avoids this.
 2020-05-30 11:21:40 +02:00
clairexen 94c1035389
Merge pull request #1885 from Xiretza/mod-rem-cells 
Fix modulo/remainder semantics
 2020-05-29 16:37:23 +02:00
whitequark efa7424fb9 Restrict RTLIL::IdString to not contain whitespace or control chars. 
This is an existing invariant (most backends can't cope with these)
but one that was not checked or documented.
 2020-05-29 06:43:18 +00:00
Xiretza f88bef7672
Document division and modulo cells 2020-05-28 22:59:04 +02:00
Xiretza edd8ff2c07
Add flooring division operator 
The $div and $mod cells use truncating division semantics (rounding
towards 0), as defined by e.g. Verilog. Another rounding mode, flooring
(rounding towards negative infinity), can be used in e.g. VHDL. The
new $divfloor cell provides this flooring division.

This commit also fixes the handling of $div in opt_expr, which was
previously optimized as if it was $divfloor.
 2020-05-28 22:59:04 +02:00
Xiretza 17163cf43a
Add flooring modulo operator 
The $div and $mod cells use truncating division semantics (rounding
towards 0), as defined by e.g. Verilog. Another rounding mode, flooring
(rounding towards negative infinity), can be used in e.g. VHDL. The
new $modfloor cell provides this flooring modulo (also known as "remainder"
in several languages, but this name is ambiguous).

This commit also fixes the handling of $mod in opt_expr, which was
previously optimized as if it was $modfloor.
 2020-05-28 22:59:03 +02:00
Eddie Hung c34d57de2e Update CHANGELOG and manual for departure from upstream 2020-04-27 12:08:45 -07:00
Marcelina Kościelnicka 38a0c30d65 Get rid of dffsr2dff. 
This pass is a proper subset of opt_rmdff, which is called by opt, which
is called by every synth flow in the coarse part.  Thus, it never
actually does anything and can be safely removed.
 2020-04-15 16:22:37 +02:00
Teguh Hofstee b08932cb81 fix typo in `write_smt2` help 2020-03-23 02:14:26 -07:00
whitequark 161eba253f manual: explain RTLIL::Wire::{upto,offset}. 2020-02-09 14:54:07 +00:00
Claire Wolf 8f40113826
Merge pull request #1553 from whitequark/manual-dffx 
Document $dffe, $dffsr, $_DFFE_*, $_DFFSR_* cells
 2020-01-28 09:41:08 +01:00
Eddie Hung 6d4b6b1e69
Merge pull request #1575 from rodrigomelo9/master 
Fixed some missing "verilog_" in documentation
 2019-12-15 19:00:34 -08:00
Eddie Hung b0231df3e5
Merge pull request #1577 from gromero/for-yosys 
manual: Fix text in Abstract section
 2019-12-15 18:59:55 -08:00
Rodrigo Alejandro Melo e9dc2759c4 Fixed some missing "verilog_" in documentation 2019-12-13 10:17:05 -03:00
Gustavo Romero 993a77d19b manual: Fix text in Abstract section 2019-12-11 08:22:08 -03:00
whitequark 72a5674c03 manual: document $dffe, $dffsr, $_DFFE_*, $_DFFSR_* cells. 2019-12-05 10:28:43 +00:00
whitequark ec4c9267b3 manual: document behavior of many comb cells more precisely. 2019-12-04 11:32:14 +00:00
Clifford Wolf 023086bd46 Add $_NMUX_, add "abc -g cmos", add proper cmos cell costs 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-08-06 04:47:55 +02:00
whitequark 9251c000e8 manual: explain the purpose of `sync always`. 2019-07-02 17:10:13 +00:00
whitequark addf01d45d Explain exact semantics of switch and case rules in the manual. 2019-06-19 05:22:40 +00:00
Clifford Wolf 71c38d9de5 Add $specrule cells for $setup/$hold/$skew specify rules 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-04-23 21:36:59 +02:00
Clifford Wolf aec2475a9d Add CellTypes support for $specify2 and $specify3 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-04-23 21:36:59 +02:00
whitequark fc2dd7ec8e manual: document some gates. 2019-01-14 16:17:25 +00:00
whitequark 7a45122168 manual: explain $tribuf cell. 2019-01-14 16:08:58 +00:00
Clifford Wolf f042559e9d Fix typo in manual 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-01-07 10:07:28 +01:00
whitequark 182d84ad54 manual: make description of $meminit ports match reality. 2018-12-21 23:04:31 +00:00
whitequark c04908c997 manual: fix typos. 2018-12-20 07:59:40 +00:00
whitequark a9ff81dd82 manual: document $meminit cell and memory_* passes. 2018-12-20 04:54:31 +00:00
Clifford Wolf 500726781b Update command reference manual 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-10-16 15:28:37 +02:00
acw1251 efac8a45a6 Fixed typo in "verilog_write" help message 2018-09-18 13:34:30 -04:00
Henner Zeller 3aa4484a3c Consistent use of 'override' for virtual methods in derived classes. 
o Not all derived methods were marked 'override', but it is a great
  feature of C++11 that we should make use of.
o While at it: touched header files got a -*- c++ -*- for emacs to
  provide support for that language.
o use YS_OVERRIDE for all override keywords (though we should probably
  use the plain keyword going forward now that C++11 is established)
 2018-07-20 23:51:06 -07:00
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 05cdd58c8d Add $_ANDNOT_ and $_ORNOT_ gates 2017-05-17 09:08:29 +02:00
Clifford Wolf 5f1d0b1024 Add $live and $fair cell types, add support for s_eventually keyword 2017-02-25 10:36:39 +01:00
Piotr Esden-Tempski e3a12b57f5 Use -E sed parameter instead of -r. 
BSD sed equivalent to -r parameter is -E and it is also supported in GNU
sed thus using -E results in support on both platforms.
 2017-02-04 18:26:01 -08:00
Clifford Wolf 3928482a3c Add $cover cell type and SVA cover() support 2017-02-04 14:14:26 +01:00
Clifford Wolf 4832faf5e9 Updated command reference in manual 2016-11-02 19:25:28 +01:00
Clifford Wolf bdc316db50 Added $anyseq cell type 2016-10-14 15:24:03 +02:00
Clifford Wolf 8ebba8a35f Added $ff and $_FF_ cell types 2016-10-12 01:18:39 +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 4056312987 Added $anyconst and $aconst 2016-07-27 15:41:22 +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
Clifford Wolf d3f0d72427 Added warning about adding fsm_encoding attributes to wires to manual 2016-07-08 18:31:31 +02:00
Clifford Wolf 52bb1b968d Added $sop cell type and "abc -sop" 2016-06-17 13:50:09 +02:00
Clifford Wolf d05115ceda Minor presentation fixes 2016-05-14 11:35:39 +02:00
Clifford Wolf 0bc95f1e04 Added "yosys -D" feature 2016-04-21 23:28:37 +02:00
Wladimir J. van der Laan 71f9f40fa9 Fix a few typos in the manual 2016-04-03 14:29:11 +02:00
Clifford Wolf ec93680bd5 Renamed opt_share to opt_merge 2016-03-31 08:52:49 +02:00
Clifford Wolf 1d0f0d668a Renamed opt_const to opt_expr 2016-03-31 08:46:56 +02:00
Sebastian Kuzminsky 7e6426a67d user-facing spelling fixes 
"speciefied" -> "specified"
"unkown" -> "unknown"
 2016-02-28 15:14:01 -07:00
Clifford Wolf 85fe6d176f Updated command reference in manual 2016-02-14 11:02:11 +01:00
Micah Elizabeth Scott 93f6f68b65 Remove nonportable "-r" option from xargs 
On Linux, this avoids an empty "rm -f" call when there's nothing to clean. But it isn't portable, and it causes the build to fail on Mac OS. It doesn't seem to be harmful to remove this option entirely, and it's a step toward fixing the Mac build.
 2015-12-15 10:13:06 -08:00
Clifford Wolf 924d9d6e86 Added read-enable to memory model 2015-09-25 12:23:11 +02:00
Larry Doolittle 6c00704a5e Another block of spelling fixes 
Smaller this time
 2015-08-14 23:27:05 +02:00
Clifford Wolf 0350074819 Re-created command-reference-manual.tex, copied some doc fixes to online help 2015-08-14 11:27:19 +02:00
Clifford Wolf 84bf862f7c Spell check (by Larry Doolittle) 2015-08-14 10:56:05 +02:00
Clifford Wolf c699d7c614 More ASCII encoding fixes 2015-08-13 09:42:24 +02:00
Clifford Wolf ad8efeb13f Fixed CRLF line endings 2015-08-13 09:35:00 +02:00
Clifford Wolf 08ad5409a2 Some ASCII encoding fixes (comments and docs) by Larry Doolittle 2015-08-13 09:30:20 +02:00
Clifford Wolf 6c84341f22 Fixed trailing whitespaces 2015-07-02 11:14:30 +02:00
Clifford Wolf 0737bf5fb8 appnote 012 fix 2015-04-04 15:13:35 +02:00
Clifford Wolf 1d5d1f79f9 Appnote 012 2015-04-04 14:52:25 +02:00
Ahmed Irfan bdf6b2b19a Merge branch 'master' of https://github.com/cliffordwolf/yosys 2015-04-03 16:38:07 +02:00
Ahmed Irfan 7ad179151b appnote for verilog to btor 2015-04-03 16:20:29 +02:00
Clifford Wolf 611cd010ae Added blif reference to appnote 010 2015-03-22 09:49:46 +01:00
Clifford Wolf b005eedf36 Added $assume cell type 2015-02-26 18:04:10 +01:00
Clifford Wolf a779a09771 Fixed creation of command reference in manual 2015-02-09 13:24:29 +01:00
Clifford Wolf b944fef925 Updated command reference in manual 2015-02-09 12:05:02 +01:00
Clifford Wolf 85887de547 Various presentation fixes 2015-02-09 12:02:21 +01:00
Clifford Wolf e13a45ae61 Added $equiv cell type 2015-01-19 11:55:05 +01:00
Clifford Wolf 539dd805f4 Improvements in CodingReadme 2014-12-31 14:28:27 +01:00
Clifford Wolf 7b62bbeee8 Added more documentation fixmes for nontrivial register cells 2014-12-08 10:56:43 +01:00
Fabien Marteau 74d70bf9e9 manual/presentation.tex: bg option is unknown with beamer 3.3 in beamercolorbox 2014-12-07 19:04:06 +01:00
Fabien Marteau e65033e421 suppressing semi-colon at the end of dot files 2014-12-05 18:17:00 +01:00
Clifford Wolf abf81d7683 Added some missing .gitignore in manual/ 2014-12-04 13:37:58 +01:00
Clifford Wolf 751fb33688 Some fixes in stubnets example 2014-11-24 12:55:30 +01:00
Clifford Wolf 12ffe0c438 Some fixes in presentation 2014-11-08 12:39:01 +01:00
Clifford Wolf b9f2127f5d Various documentation updates 2014-11-08 10:59:48 +01:00
Clifford Wolf 4569a747f8 Renamed SIZE() to GetSize() because of name collision on Win32 2014-10-10 17:07:24 +02:00
Clifford Wolf af0c8873bb Added $lcu cell type 2014-09-08 13:31:04 +02:00
Ruben Undheim 79cbf9067c Corrected spelling mistakes found by lintian 2014-09-06 08:47:06 +02:00
Clifford Wolf 8927aa6148 Removed $bu0 cell type 2014-09-04 02:07:52 +02:00
Clifford Wolf 37fe7c7bdf Removed references to yosys-svgviewer from docs 2014-09-02 04:03:06 +02:00
Clifford Wolf 4724d94fbc Added $alu cell type 2014-08-30 18:59:05 +02:00
Clifford Wolf 47c2637a96 Added additional gate types: $_NAND_ $_NOR_ $_XNOR_ $_AOI3_ $_OAI3_ $_AOI4_ $_OAI4_ 2014-08-16 18:29:39 +02:00
Clifford Wolf f092b50148 Renamed $_INV_ cell type to $_NOT_ 2014-08-15 14:11:40 +02:00
Clifford Wolf bf486002d9 Removed old doc references to $safe_pmux 2014-08-15 14:04:35 +02:00
Clifford Wolf 13f2f36884 RIP $safe_pmux 2014-08-14 11:39:46 +02:00
Clifford Wolf bd74ed7da4 Replaced sha1 implementation 2014-08-01 19:01:10 +02:00
Clifford Wolf e6d33513a5 Added module->design and cell->module, wire->module pointers 2014-07-31 14:11:39 +02:00