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yosys/tests/xilinx/dffs.ys
2019-10-17 17:11:11 +02:00

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read_verilog dffs.v
design -save read
proc
hierarchy -top dff
equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
cd dff # Constrain all select calls below inside the top module
select -assert-count 1 t:BUFG
select -assert-count 1 t:FDRE
select -assert-none t:BUFG t:FDRE %% t:* %D
design -load read
proc
hierarchy -top dffe
equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
cd dffe # Constrain all select calls below inside the top module
select -assert-count 1 t:BUFG
select -assert-count 1 t:FDRE
select -assert-none t:BUFG t:FDRE %% t:* %D