yosys/tests/ice40/macc.ys

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read_verilog macc.v
proc
design -save read
hierarchy -top top
equiv_opt -assert -multiclock -map +/ice40/cells_sim.v synth_ice40 -dsp # equivalency check
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
cd top # Constrain all select calls below inside the top module
select -assert-count 1 t:SB_MAC16
select -assert-none t:SB_MAC16 %% t:* %D
design -load read
hierarchy -top top2
#equiv_opt -multiclock -assert -map +/ice40/cells_sim.v synth_ice40 -dsp # equivalency check
equiv_opt -run :prove -multiclock -assert -map +/ice40/cells_sim.v synth_ice40 -dsp # equivalency check
clk2fflogic
miter -equiv -flatten -make_assert -make_outputs gold gate miter
sat -set-init-zero -seq 4 -verify -prove-asserts -show-ports miter
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
cd top2 # Constrain all select calls below inside the top module
select -assert-count 1 t:SB_MAC16
select -assert-none t:SB_MAC16 %% t:* %D