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12 lines
551 B
Text
12 lines
551 B
Text
read_verilog adffs.v
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proc
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async2sync # converts async flops to a 'sync' variant clocked by a 'super'-clock
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flatten
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equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 # equivalency check
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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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select -assert-count 1 t:SB_DFFN
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select -assert-count 2 t:SB_DFFSR
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select -assert-count 7 t:SB_LUT4
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select -assert-none t:SB_DFF t:SB_DFFN t:SB_DFFSR t:SB_LUT4 %% t:* %D
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