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138 Commits

Author SHA1 Message Date
Clifford Wolf 5fa5dbbdda Rename "fine:" label to "map:" in "synth_ice40" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-12-16 16:36:19 +01:00
whitequark 6e559ee3c7 synth_ice40: split `map_gates` off `fine`. 2018-12-06 12:04:39 +00:00
whitequark d9fa4387c9 synth_ice40: add -noabc option, to use built-in LUT techmapping. 
This should be combined with -relut to get sensible results.
 2018-12-05 17:13:46 +00:00
whitequark 45cb6200af opt_lut: add -dlogic, to avoid disturbing logic such as carry chains. 2018-12-05 16:30:37 +00:00
whitequark ea4870b126 synth_ice40: add -relut option, to run ice40_unlut and opt_lut. 2018-12-05 16:30:37 +00:00
Sylvain Munaut 3e5ab50a73 ice40: Add option to only use CE if it'd be use by more than X FFs 
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
 2018-11-27 21:50:42 +01:00
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 57fc8dd582 Add "synth_ice40 -json" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-06-13 13:35:10 +02:00
Tim 'mithro' Ansell d6bdefd2e9 Improving vpr output support. 
* Support output BLIF for Xilinx architectures.
 * Support using .names in BLIF for Xilinx architectures.
 * Use the same `NO_LUT` define in both `synth_ice40` and
  `synth_xilinx`.
 2018-04-18 16:55:12 -07:00
Tim 'mithro' Ansell ca39e493ba synth_ice40: Rework the vpr blif output slightly. 2018-04-18 16:55:08 -07:00
Clifford Wolf 81a457c4a6 Add "synth_ice40 -nodffe" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-04-16 20:44:26 +02:00
Tim Ansell 3cc31f197c
Fix spelling in -vpr help for synth_ice40 2017-12-08 18:44:45 -08:00
Clifford Wolf 234726c655 Add "synth_ice40 -vpr" 2017-11-16 21:37:02 +01:00
Clifford Wolf e64b9d5a4d Fix synth_ice40 doc regarding -top default 2017-09-29 17:52:57 +02:00
Clifford Wolf 81bdf0ad0f iCE40 flow is not experimental anymore 2016-11-01 11:32:02 +01:00
Clifford Wolf ca91bccb6b Added "deminout" 2016-06-19 13:08:16 +02:00
Clifford Wolf 6fe3d5a1cf Added synth_ice40 support for latches via logic loops 2016-05-06 23:02:37 +02:00
Clifford Wolf a24021ea20 Converted synth_greenpak4 to ScriptPass 2016-04-23 10:27:33 +02:00
Clifford Wolf 0bc95f1e04 Added "yosys -D" feature 2016-04-21 23:28:37 +02:00
Clifford Wolf 2553319081 Added ScriptPass helper class for script-like passes 2016-03-31 11:16:34 +02:00
Clifford Wolf 1d0f0d668a Renamed opt_const to opt_expr 2016-03-31 08:46:56 +02:00
Clifford Wolf d69395ca08 Added dffsr2dff 2016-02-02 17:19:01 +01:00
Clifford Wolf 2ee608246f Re-run ice40_opt in "synth_ice40 -abc2" 2015-12-22 12:19:11 +01:00
Clifford Wolf 494e5f24f9 Added "synth_ice40 -abc2" 2015-12-08 11:16:26 +01:00
Clifford Wolf 0793f1b196 Added ice40_ffinit pass 2015-11-26 18:11:06 +01:00
Clifford Wolf 9c33172ece Added tribuf command 2015-08-16 12:55:25 +02:00
Clifford Wolf 6c84341f22 Fixed trailing whitespaces 2015-07-02 11:14:30 +02:00
Clifford Wolf 9500b564ac synth_ice40 now flattens by default 2015-06-09 20:28:17 +02:00
Clifford Wolf c329233f0d Added output args to synth_ice40 2015-05-26 17:08:53 +02:00
Clifford Wolf 9d067fecea ice40_opt bugfix 2015-04-27 11:36:13 +02:00
Clifford Wolf 8d4a675f91 Added iCE40 const folding support for SB_CARRY 2015-04-27 08:38:14 +02:00
Clifford Wolf d6f7698f59 Added ice40 bram support 2015-04-24 00:06:50 +02:00
Clifford Wolf f78fa718be Added ice40 SB_CARRY support 2015-04-18 09:33:08 +02:00
Clifford Wolf 661b647559 Added mapping of synchronous set/reset to iCE40 flow 2015-04-17 11:54:25 +02:00
Clifford Wolf dc30b034f7 Fixed "dff2dffe -direct-match" 2015-04-16 11:47:59 +02:00
Clifford Wolf 0d344a23d3 improved ice40 dff cell mapping 2015-04-16 11:30:56 +02:00
Clifford Wolf 4529c56cc6 use "hierarchy -auto-top" in synth_ice40 2015-04-14 13:45:15 +02:00
Clifford Wolf 42d5d94a5d Added very first version of "synth_ice40" 2015-03-05 20:37:55 +01:00