2019-08-21 13:52:07 -05:00
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read_verilog dffs.v
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hierarchy -top top
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synth -flatten -run coarse # technology-independent coarse grained synthesis
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equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 # equivalency check same as technology-dependent fine-grained synthesis
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design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
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cd top # Constrain all select calls below inside the top module
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select -assert-count 1 t:SB_DFF
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2019-08-22 14:20:18 -05:00
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select -assert-count 1 t:SB_DFFE
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select -assert-none t:SB_DFF t:SB_DFFE %% t:* %D
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