8 Commits

Author	SHA1	Message	Date
Martin Povišer	de16cd253d	synth_lattice: Enable `booth` by default on XO3	2023-11-22 15:47:11 +01:00
N. Engelhardt	52d3fa6d77	Merge pull request #4022 from povik/machxo3-qor-work ... MachXO3 QoR improvements	2023-11-13 16:56:06 +01:00
Martin Povišer	3ffa4b5e5d	synth_lattice: Wire up `cmp2softlogic` as an option	2023-11-13 10:42:12 +01:00
Martin Povišer	fed2720999	synth_lattice: Optimize flip-flop memories better ... After `memory_map` maps memories to flip-flops we need to let `opt` remove undef muxes, otherwise we block enable/reset signal inference by `opt_dff` which is in detriment to QoR.	2023-11-07 16:29:56 +01:00
Martin Povišer	ee3a4ce14d	synth_lattice: Merge NOT gates on DFF control signals ... `dfflegalize` will emit NOT gates to drive control signals on flip-flops when mapping to supported flip-flop polarities. Typically in a design this will produce a number of NOT gates driven by the same signal. For one reason or another ABC doesn't fully cancel this redundancy during LUT mapping. Insert an explicit `opt_merge` pass to improve synthesis QoR.	2023-11-07 16:21:39 +01:00
Miodrag Milanovic	792cf8326e	defult nowidelut for xo2/3/3d	2023-08-29 10:08:55 +02:00
Miodrag Milanovic	3b9ebfa672	Addressed code review comments	2023-08-25 11:10:20 +02:00
Miodrag Milanovic	e3c15f003e	Create synth_lattice	2023-08-23 10:53:21 +02:00