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53 Commits

Author SHA1 Message Date
Marcelina Kościelnicka cf60699884 synth_ice40: Use opt_dff. 
The main part is converting ice40_dsp to recognize the new FF types
created in opt_dff instead of trying to recognize the mux patterns on
its own.

The fsm call has been moved upwards because the passes cannot deal with
$dffe/$sdff*, and other optimizations don't help it much anyway.
 2020-07-30 22:26:20 +02:00
whitequark 7191dd16f9 Use C++11 final/override keywords. 2020-06-18 23:34:52 +00:00
Eddie Hung 7f33a0294b Cleanup use of hard-coded default parameters in light of #1945 2020-04-22 12:02:30 -07:00
Eddie Hung 956ecd48f7 kernel: big fat patch to use more ID::*, otherwise ID(*) 2020-04-02 09:51:32 -07:00
Eddie Hung db68e4c2a7 ice40_dsp: fix typo 2020-01-17 16:08:04 -08:00
Eddie Hung 4985318263 ice40_dsp: add default values for parameters 2020-01-17 15:37:52 -08:00
Eddie Hung 26a6c55665 Move log_debug("\n") later 2019-09-23 13:27:00 -07:00
Eddie Hung d122083a11 Output pattern matcher items as log_debug() 2019-09-20 12:42:28 -07:00
Eddie Hung 70c5444b25 Update doc 2019-09-20 10:07:54 -07:00
Eddie Hung 8cfcaf108e Disable support for SB_MAC16 reset since it is async 2019-09-19 22:48:57 -07:00
Eddie Hung 34f9a8ceb2 Update doc for ice40_dsp 2019-09-19 21:57:11 -07:00
Eddie Hung a8bc460805 Use ID() macro 2019-09-19 16:13:22 -07:00
Eddie Hung 517ca49963 Remove TODO as check should not be necessary 2019-09-19 14:49:47 -07:00
Eddie Hung 1a0f7ed09c Refactor ce{mux,pol} -> hold{mux,pol} 2019-09-19 14:27:25 -07:00
Eddie Hung 429c9852ce Add HOLD/RST support for SB_MAC16 2019-09-19 14:02:55 -07:00
Eddie Hung 2766465a2b Add support for SB_MAC16 CD and H registers 2019-09-19 12:14:33 -07:00
Eddie Hung c8310a6e76 Refactor ice40_dsp.pmg 2019-09-19 12:00:48 -07:00
Eddie Hung da8fe83f7a Tidy up ice40_dsp some more 2019-09-06 12:16:40 -07:00
Eddie Hung dc10559f31 Cleanup 2019-09-05 21:39:52 -07:00
Eddie Hung 5a2fc6fcb5 Refactor ice40_dsp 2019-09-05 18:06:59 -07:00
Eddie Hung 888ae1d05e Fix broken ice40_dsp 2019-09-05 17:58:19 -07:00
Eddie Hung 4cc74346f1 Fix compile error 2019-08-20 20:27:05 -07:00
Eddie Hung 27d5df9467 ffH -> ffFJKG 2019-08-15 12:19:34 -07:00
Eddie Hung aad97168b0 Fixes for reverting SigSpec helper functions 2019-08-14 10:22:33 -07:00
Eddie Hung 1b0e68db94 Revert changes to RTLIL::SigSpec methods 2019-08-13 17:09:28 -07:00
Eddie Hung 2c0be7aa5d Rework ice40_dsp to map to SB_MAC16 earlier, and check before packing 2019-08-08 12:56:05 -07:00
Eddie Hung fb568ddb4e Fix compile error 2019-08-07 14:31:55 -07:00
Eddie Hung d90b8b081a Do not SigSpec::extract() beyond bounds 2019-08-07 13:58:26 -07:00
Eddie Hung e19d33b003 Cope with sign extension in mul2dsp 2019-08-01 12:44:56 -07:00
Eddie Hung c54a39069d CO is sign extension only if signed multiplier 2019-08-01 10:00:49 -07:00
Eddie Hung e4a638c292 Restore old CO behaviour 2019-07-31 15:45:15 -07:00
Eddie Hung 4c25d1a76f Pop the CO bit from O 2019-07-26 10:27:30 -07:00
Eddie Hung c1a05f4557 Allow adders/accumulators with 33 bits using CO output 2019-07-26 10:15:36 -07:00
Eddie Hung 79fd6edc5a Eliminate warnings by sizing O correctly 2019-07-23 15:13:30 -07:00
Eddie Hung 0dd2a125f6 Remove debug print 2019-07-23 14:21:45 -07:00
Eddie Hung dc0c853abe Simplify and fix for MACs 2019-07-23 14:20:34 -07:00
Eddie Hung 33c984a044 Fix spacing 2019-07-22 16:37:13 -07:00
Eddie Hung 068617f094 Pack hi and lo registers separately 2019-07-22 16:12:57 -07:00
Eddie Hung 4d71ab384d Rename according to vendor doc TN1295 2019-07-22 15:08:26 -07:00
Eddie Hung 304cefbbe2 Pack Y register 2019-07-22 15:05:16 -07:00
Eddie Hung 5a14b6e1f6 Pack adders not just accumulators 2019-07-22 13:01:49 -07:00
Eddie Hung 9ad11ea2cc Fine tune ice40_dsp.pmg, add support for packing subsets of registers 2019-07-19 10:57:32 -07:00
Eddie Hung 8f0e796be1 Add support for ice40 signed multipliers 2019-07-19 10:38:13 -07:00
Clifford Wolf 4306bebe58 pmgen progress 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-04-30 10:51:51 +02:00
Clifford Wolf 9f792c599d Add pmgen support for multiple patterns in one matcher 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-04-29 13:02:05 +02:00
Clifford Wolf 2fe1c830eb Bugfix in ice40_dsp 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-02-21 13:28:46 +01:00
Clifford Wolf 218e9051bb Add "synth_ice40 -dsp" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-02-20 16:42:27 +01:00
Clifford Wolf dca65d83a0 Detect and reject cases that do not map well to iCE40 DSPs (yet) 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-02-20 11:18:19 +01:00
Clifford Wolf 5a853ed46c Add actual DSP inference to ice40_dsp pass 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-02-17 15:35:48 +01:00
Clifford Wolf 5216735210 Progress in pmgen, add pmgen README 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-01-15 11:23:25 +01:00