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98 Commits

Author SHA1 Message Date
N. Engelhardt d9ec35a526 split CodingReadme into multiple files 2021-03-22 19:16:25 +01:00
whitequark fbb346ea91 flatten: preserve original object names via hdlname attribute. 2020-06-08 20:19:41 +00:00
Peter Crozier f482c9c016 Generalise structs and add support for packed unions. 2020-05-12 14:25:33 +01:00
Peter Crozier 0b6b47ca67 Implement SV structs. 2020-05-08 14:40:49 +01:00
Claire Wolf bbbce0d1c5 Add "nowrshmsk" attribute, fix shift-and-mask bit slice write for signed offset, fixes #1990 
Signed-off-by: Claire Wolf <claire@symbioticeda.com>
 2020-05-02 11:21:01 +02:00
whitequark 9b26a1fa89 README: explain how to do out-of-tree builds. 2020-04-24 23:27:43 +00:00
whitequark 2106f78bb1 ast/simplify: improve enum handling. 
Before this commit, enum values were serialized as attributes of form
  \enum_<width>_<value>
where <value> was a decimal signed integer.

This has multiple drawbacks:
  * Enums with large values would be hard to process for downstream
    tooling that cannot parse arbitrary precision decimals. (In fact
    Yosys also did not correctly process enums with large values,
    and would overflow `int`.)
  * Enum value attributes were not confined to their own namespace,
    making it harder for downstream tooling to enumerate all such
    attributes, as opposed to looking up any specific value.
  * Enum values could not include x or z, which are explicitly
    permitted in the SystemVerilog standard.

After this commit, enum values are serialized as attributes of form
  \enum_value_<value>
where <value> is a bit sequence of the appropriate width.
 2020-04-15 14:14:50 +00:00
Peter Crozier ecc22f7fed Support module/package/interface/block scope for typedef names. 2020-03-23 20:07:22 +00:00
Claire Wolf ed4fa19ba2 Update Copyright 
Signed-off-by: Claire Wolf <claire@symbioticeda.com>
 2020-03-16 16:28:25 +01:00
Waldir Pimenta 418c069561 License: bump year and add title 2020-03-14 16:46:07 +00:00
Eddie Hung 0f4c1906bb Small fixes 2020-02-27 10:29:53 -08:00
Eddie Hung 12d70ca8fb xilinx: improve specify functionality 2020-02-27 10:17:29 -08:00
Eddie Hung 577545488a xilinx: use specify blocks in place of abc9_{arrival,required} 2020-02-27 10:17:29 -08:00
Claire Wolf cd044a2bb6
Merge pull request #1642 from jjj11x/jjj11x/sv-enum 
Enum support
 2020-02-20 18:17:25 +01:00
Jeff Wang 1c16311d10 update documentation for enums and typedefs 2020-02-17 04:42:55 -05:00
Miodrag Milanović a7df492243
Add comment for macOS dependency install 2020-02-15 09:44:32 +01:00
Eddie Hung 0671ae7d79
Merge pull request #1661 from YosysHQ/eddie/abc9_required 
abc9: add support for required times
 2020-02-05 18:59:40 +01:00
David Shah 0488492ad2 Update CHANGELOG and README 
Signed-off-by: David Shah <dave@ds0.me>
 2020-02-02 16:13:13 +00:00
Eddie Hung e0bdf5d7a9 Fix typo 2020-01-27 12:30:39 -08:00
Eddie Hung 168c9d5871 Update README.md for (* abc9_required *) 2020-01-15 14:42:00 -08:00
Eddie Hung ffd38cb5ea Reword (* abc9_flop *) description 2020-01-06 09:03:18 -08:00
Eddie Hung c40b1aae42 Restore abc9 -keepff 2020-01-01 08:34:43 -08:00
Eddie Hung ece423415c Add CHANGELOG entry, add abc9_{flop,keep} attr to README.md 2019-12-30 14:24:58 -08:00
Eddie Hung ff2645ce0b Put specify/endspecify inside `` 2019-12-20 13:38:32 -08:00
Eddie Hung 2666482282 Update README.md :: abc_ -> abc9_ 2019-12-11 16:38:43 -08:00
Marcin Kościelnicki 6cdea425b8 clkbufmap: Add support for inverters in clock path. 2019-11-25 20:40:39 +01:00
David Shah b60f32c6ec Update CHANGELOG and README 
Signed-off-by: David Shah <dave@ds0.me>
 2019-11-22 12:46:19 +00:00
David Shah 1746b6373b Update CHANGELOG and README 
Signed-off-by: David Shah <dave@ds0.me>
 2019-10-03 09:54:45 +01:00
Marcin Kościelnicki c9f9518de4 Added extractinv pass 2019-09-19 04:02:48 +02:00
Eddie Hung 903cd58acf
Merge pull request #1312 from YosysHQ/xaig_arrival 
Allow arrival times of sequential outputs to be specified to abc9
 2019-09-05 12:00:23 -07:00
Clifford Wolf 71d355560e Update README.md 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-09-05 17:20:29 +02:00
Clifford Wolf 30f1ac7ce9 Rename conflicting wires on flatten/techmap, add "hierconn" attribute, fixes #1220 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-09-05 13:51:53 +02:00
Eddie Hung c7f1ccbcb0 Merge remote-tracking branch 'origin/master' into xaig_arrival 2019-08-30 12:28:35 -07:00
Eddie Hung 999fb33fd0
Merge pull request #1340 from YosysHQ/eddie/abc_no_clean 
abc9 to not call "clean" at end of run (often called outside)
 2019-08-30 12:27:09 -07:00
Eddie Hung d87a6f6303 Merge remote-tracking branch 'origin/master' into xaig_arrival 2019-08-30 10:32:58 -07:00
Eddie Hung 9c4e1c6a8f
Format `-pwires` 2019-08-30 10:27:07 -07:00
Eddie Hung c52db44f9a Group abc_* attribute doc with other attributes 2019-08-29 12:13:52 -07:00
Eddie Hung 8d820a9884 Merge remote-tracking branch 'origin/master' into xaig_arrival 2019-08-28 15:19:10 -07:00
Eddie Hung d672b1ddec Merge remote-tracking branch 'origin/master' into xaig_arrival 2019-08-23 11:26:55 -07:00
Eddie Hung 4c0404ae02 Mention clkbuf_inhibit can be overridden 2019-08-23 10:24:59 -07:00
Eddie Hung 6872805a3e Merge remote-tracking branch 'origin/master' into mwk/xilinx_bufgmap 2019-08-23 10:00:50 -07:00
Miodrag Milanovic c618ae43b9 Make macOS depenency clear 2019-08-23 10:37:50 +02:00
Clifford Wolf e9f3eb9760 Bump year in copyright notice 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-08-22 18:43:16 +02:00
Eddie Hung 4cd1d21bfe Add (* abc_arrival=<int> *) doc 2019-08-20 18:27:16 -07:00
Eddie Hung 0ca397f087 Deprecate `abc_scc_break` attribute 2019-08-20 15:10:01 -07:00
Eddie Hung 29e4c8bd06 Clarify with 'only' 2019-08-19 10:00:53 -07:00
Eddie Hung c36fca86f7 Update doc 2019-08-19 09:59:57 -07:00
Eddie Hung d26c512d7e Add doc for abc_* attributes 2019-08-16 16:07:29 -07:00
Marcin Kościelnicki 2d5d82e2b6 README updates 2019-08-13 21:47:27 +02:00
Clifford Wolf 5be5bd0fb6 Update README to use "read" instead of "read_verilog" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-07-29 10:40:30 +02:00