1173 commits

Author	SHA1	Message	Date
Eddie Hung	ba8ccbdea8	Merge pull request #1186 from YosysHQ/eddie/abc9_ice40_fix ... abc9/ice40: encapsulate SB_CARRY+SB_LUT4 into one box	2019-07-16 08:52:14 -07:00
Eddie Hung	5fb27c071b	$__ICE40_CARRY_LUT4 -> $__ICE40_FULL_ADDER as per @whitequark	2019-07-15 12:03:51 -07:00
Eddie Hung	d032198fac	ice40_opt to $__ICE40_CARRY_LUT4 into $lut not SB_LUT	2019-07-13 01:11:00 -07:00
Clifford Wolf	463f710066	Merge pull request #1183 from whitequark/ice40-always-relut ... synth_ice40: switch -relut to be always on	2019-07-12 10:48:00 +02:00
Eddie Hung	7a912f22b2	Use Const::from_string() not its constructor...	2019-07-12 01:32:10 -07:00
Eddie Hung	28274dfb09	Off by one	2019-07-12 01:17:53 -07:00
Eddie Hung	e0e5d7d68e	Fix spacing	2019-07-12 01:15:22 -07:00
Eddie Hung	4de03bd5e6	Remove double push	2019-07-12 01:08:48 -07:00
Eddie Hung	62ac5ebd02	Map to and from this box if -abc9	2019-07-12 00:53:01 -07:00
Eddie Hung	0f5bddcd79	ice40_opt to handle this box and opt back to SB_LUT4	2019-07-12 00:52:31 -07:00
Eddie Hung	a79ff2501e	Add new box to cells_sim.v	2019-07-12 00:52:19 -07:00
Eddie Hung	c6e16e1334	_ABC macro will map and unmap to this new box	2019-07-12 00:51:37 -07:00
Eddie Hung	fc3d74616f	Combine SB_CARRY+SB_LUT into one $__ICE40_CARRY_LUT4 box	2019-07-12 00:50:42 -07:00
whitequark	b700a4b1c5	synth_ice40: switch -relut to be always on.	2019-07-11 20:18:41 +00:00
whitequark	a8c5f7f41e	synth_ice40: fix help text typo. NFC.	2019-07-11 20:18:41 +00:00
Eddie Hung	19c1c3cfa3	Merge pull request #1182 from koriakin/xc6s-bram ... synth_xilinx: Initial Spartan 6 block RAM inference support.	2019-07-11 12:55:35 -07:00
Marcin Kościelnicki	a9efacd01d	xilinx: Fix the default values for FDPE/FDSE INIT attributes to match ISE/Vivado.	2019-07-11 21:13:12 +02:00
Marcin Kościelnicki	ce250b341c	synth_xilinx: Initial Spartan 6 block RAM inference support.	2019-07-11 14:45:48 +02:00
Eddie Hung	bb2144ae73	Merge pull request #1180 from YosysHQ/eddie/no_abc9_retime ... Error out if -abc9 and -retime specified	2019-07-10 14:38:13 -07:00
Eddie Hung	2f990a7319	Merge pull request #1148 from YosysHQ/xc7mux ... synth_xilinx to infer wide multiplexers using new '-widemux <min>' option	2019-07-10 14:38:00 -07:00
Eddie Hung	6bbd286e03	Error out if -abc9 and -retime specified	2019-07-10 12:47:48 -07:00
Eddie Hung	58bb84e5b2	Add some spacing	2019-07-10 12:32:33 -07:00
Eddie Hung	521971e32e	Add some ASCII art explaining mux decomposition	2019-07-10 12:20:04 -07:00
Eddie Hung	e573d024a2	Call muxpack and pmux2shiftx before cmp2lut	2019-07-09 21:26:38 -07:00
Eddie Hung	c55530b901	Restore opt_clean back to original place	2019-07-09 14:29:58 -07:00
Eddie Hung	5b48b18d29	Restore missing techmap -map +/cmp2lut.v with LUT_WIDTH=6	2019-07-09 14:28:54 -07:00
David Shah	27b27b8781	synth_ecp5: Fix typo in copyright header ... Signed-off-by: David Shah <dave@ds0.me>	2019-07-09 22:26:10 +01:00
Eddie Hung	b1a048a703	Extend using A[1] to preserve don't care	2019-07-09 12:35:41 -07:00
Eddie Hung	93522b0ae1	Extend during mux decomposition with 1'bx	2019-07-09 10:59:37 -07:00
Eddie Hung	c864995343	Fix typo and comments	2019-07-09 10:38:07 -07:00
Eddie Hung	c91cb73562	Merge remote-tracking branch 'origin/master' into xc7mux	2019-07-09 10:22:49 -07:00
Eddie Hung	c68b909210	synth_xilinx to call commands of synth -coarse directly	2019-07-09 10:21:54 -07:00
Eddie Hung	737340327f	Revert "synth_xilinx to call "synth -run coarse" with "-keepdc"" ... This reverts commit 7f964859ec.	2019-07-09 10:15:02 -07:00
Eddie Hung	713337255e	Revert "Add "synth -keepdc" option"	2019-07-09 10:14:23 -07:00
Eddie Hung	bc84f7dd10	Fix spacing	2019-07-09 09:22:12 -07:00
Eddie Hung	667199d460	Fix spacing	2019-07-09 09:16:00 -07:00
Clifford Wolf	a429aedc0f	Merge pull request #1167 from YosysHQ/eddie/xc7srl_cleanup ... Cleanup synth_xilinx SRL inference, make more consistent	2019-07-09 16:49:08 +02:00
Eddie Hung	6951e32070	Decompose mux inputs in delay-orientated (rather than area) fashion	2019-07-08 23:51:13 -07:00
Eddie Hung	45da3ada7b	Do not call opt -mux_undef (part of -full) before muxcover	2019-07-08 23:49:16 -07:00
Eddie Hung	d4ab43d940	Add one more comment	2019-07-08 23:05:48 -07:00
Eddie Hung	939a225f92	Less thinking	2019-07-08 23:02:57 -07:00
Eddie Hung	de40453553	Reword	2019-07-08 22:56:19 -07:00
Eddie Hung	7f8c420cf7	Merge pull request #1166 from YosysHQ/eddie/synth_keepdc ... Add "synth -keepdc" option	2019-07-08 21:43:16 -07:00
Eddie Hung	7f964859ec	synth_xilinx to call "synth -run coarse" with "-keepdc"	2019-07-08 19:23:24 -07:00
Eddie Hung	9ac078be6f	Merge remote-tracking branch 'origin/eddie/synth_keepdc' into xc7mux	2019-07-08 19:21:53 -07:00
Eddie Hung	dd9771cbcd	Add synth -keepdc option	2019-07-08 19:14:54 -07:00
Eddie Hung	3f86407cc3	Map $__XILINX_SHIFTX in a more balanced manner	2019-07-08 17:06:35 -07:00
Eddie Hung	78914e2e0e	Capitalisation	2019-07-08 17:06:22 -07:00
Eddie Hung	baf47e496f	Add synth_xilinx -widemux recommended value	2019-07-08 17:04:39 -07:00
Eddie Hung	895ca50173	Fixes for 2:1 muxes	2019-07-08 12:03:38 -07:00