133 commits

Author	SHA1	Message	Date
Eddie Hung	b66c99ece0	Merge pull request #1355 from YosysHQ/eddie/peepopt_dffmuxext ... peepopt_dffmux -- bit optimisations for word level $dff + (enable/reset) $mux cells	2019-09-18 12:40:08 -07:00
Eddie Hung	14d72c39c3	Revert "Make one check $shift(x)? only; change testcase to be 8b" ... This reverts commit e2c2d784c8.	2019-09-13 16:33:18 -07:00
Eddie Hung	3a49aa6b4a	Tidy up	2019-09-11 14:20:49 -07:00
Eddie Hung	817ac7c5e0	Fix UB	2019-09-11 14:18:02 -07:00
Eddie Hung	bdb5e0f29c	Cope with presence of reset muxes too	2019-09-11 13:36:37 -07:00
Eddie Hung	4937917cd8	Cleanup	2019-09-11 13:22:52 -07:00
Eddie Hung	bbef0d2ac8	Only display log message if did_something	2019-09-11 12:29:26 -07:00
Eddie Hung	edf90afd20	Rename dffmuxext -> dffmux, also remove constants in dff+mux	2019-09-11 00:56:38 -07:00
Eddie Hung	be0eaf3a9a	Fix misspelling	2019-09-09 16:46:33 -07:00
Eddie Hung	e2c2d784c8	Make one check $shift(x)? only; change testcase to be 8b	2019-09-06 22:48:23 -07:00
Eddie Hung	433b0c677c	Remove log_cell() calls	2019-09-04 13:42:44 -07:00
Eddie Hung	2b86055848	Add peepopt_dffmuxext	2019-09-04 12:35:15 -07:00
Eddie Hung	4aa505d1b2	Merge pull request #1344 from YosysHQ/eddie/ice40_signed_macc ... ice40_dsp to allow signed multipliers	2019-09-01 10:11:33 -07:00
Eddie Hung	17b77fd411	Missing dep for test_pmgen	2019-08-30 14:01:07 -07:00
Eddie Hung	c1459bc748	Do not restrict multiplier to unsigned	2019-08-30 12:22:14 -07:00
Eddie Hung	4eb5847dbd	Cleanup	2019-08-28 18:10:33 -07:00
Eddie Hung	0af64df10c	Account for D port being a constant	2019-08-28 15:32:38 -07:00
Eddie Hung	52c4655de3	No need to replace Q of slice since $shiftx is autoremove-d	2019-08-28 11:06:11 -07:00
Eddie Hung	11e3eb1009	More cleanup	2019-08-28 10:19:35 -07:00
Eddie Hung	86b538bd02	More cleanup	2019-08-28 10:11:09 -07:00
Eddie Hung	c4d1bd988b	Do not use default_params dict, hardcode default values, cleanup	2019-08-28 10:06:40 -07:00
Eddie Hung	c3e9627afe	Always generate if no match	2019-08-28 09:54:56 -07:00
Eddie Hung	0ebe2c9831	Rename test_pmgen arg xilinx_srl.{fixed,variable}	2019-08-28 09:27:03 -07:00
Eddie Hung	9172d4a674	Missing close bracket	2019-08-26 21:02:52 -07:00
Eddie Hung	54422c5bb4	Remove leftover header	2019-08-26 17:51:13 -07:00
Eddie Hung	e95fb24574	Improve xilinx_srl.fixed generate, add .variable generate	2019-08-26 17:49:08 -07:00
Eddie Hung	45c34c87ee	Account for maxsubcnt overflowing	2019-08-26 17:48:54 -07:00
Eddie Hung	b32d6bf403	Add xilinx_srl_pm.variable to test_pmgen	2019-08-26 17:44:57 -07:00
Eddie Hung	e574edc3e9	Populate generate for xilinx_srl.fixed pattern	2019-08-26 14:21:17 -07:00
Eddie Hung	cf9e017127	Add xilinx_srl_fixed, fix typos	2019-08-26 14:20:06 -07:00
Eddie Hung	7911143827	Create new $__XILINX_SHREG_ cell for variable length too	2019-08-23 18:15:49 -07:00
Eddie Hung	a048fc93e8	Do not allow Q of last cell of variable length SRL to be (* keep *)	2019-08-23 18:15:24 -07:00
Eddie Hung	ee9f6e6243	Also add first.Q to chain_bits since variable length	2019-08-23 18:14:06 -07:00
Eddie Hung	70ce3d0670	Do not enforce !EN_POLARITY on $dffe	2019-08-23 18:11:28 -07:00
Eddie Hung	188b49378a	Create new cell for fixed length SRL	2019-08-23 17:25:30 -07:00
Eddie Hung	e081303ee8	Cleanup FDRE matching	2019-08-23 17:23:52 -07:00
Eddie Hung	54488cfb82	Oops don't need a finally block	2019-08-23 16:39:37 -07:00
Eddie Hung	83e2d87fb8	Keep track of bits in variable length chain, to check for taps	2019-08-23 16:21:10 -07:00
Eddie Hung	f2d4814284	Don't forget $dff has no EN	2019-08-23 16:14:57 -07:00
Eddie Hung	2217d926a9	Same for variable length	2019-08-23 16:13:16 -07:00
Eddie Hung	b1caf7be5e	Filter on en_port for fixed length	2019-08-23 16:09:46 -07:00
Eddie Hung	513af10d77	Check clock is consistent	2019-08-23 15:18:26 -07:00
Eddie Hung	c762618783	Fix last_cell.D	2019-08-23 15:08:49 -07:00
Eddie Hung	ca5de78e76	Revert "Add a unique argument to pmgen's nusers()" ... This reverts commit 1d88887cfd.	2019-08-23 15:04:00 -07:00
Eddie Hung	e85e6e8d45	Revert "Fix polarity" ... This reverts commit 9cd23cf0fe.	2019-08-23 15:03:42 -07:00
Eddie Hung	9cd23cf0fe	Fix polarity	2019-08-23 14:49:34 -07:00
Eddie Hung	c2757613b6	Check for non unique nusers/fanouts	2019-08-23 14:32:36 -07:00
Eddie Hung	1d88887cfd	Add a unique argument to pmgen's nusers()	2019-08-23 14:32:17 -07:00
Eddie Hung	8ecfd55d5a	Update doc	2019-08-23 14:16:41 -07:00
Eddie Hung	3d7f4aa0c8	Remove (* init *) entry when consumed into SRL	2019-08-23 13:56:01 -07:00