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