yosys/tests/techmap/dfflegalize_dlatch.ys

43 lines
1.1 KiB
Plaintext
Raw Normal View History

2020-06-30 08:30:59 -05:00
read_verilog -icells <<EOT
module dlatch(input E, D, output [1:0] Q);
$_DLATCH_P_ ff0 (.E(E), .D(D), .Q(Q[0]));
$_DLATCH_N_ ff1 (.E(E), .D(D), .Q(Q[1]));
endmodule
EOT
design -save orig
equiv_opt -assert -multiclock -map +/simcells.v dfflegalize -cell $_DLATCH_P_ x
equiv_opt -assert -multiclock -map +/simcells.v dfflegalize -cell $_DLATCH_PP0_ x
equiv_opt -assert -multiclock -map +/simcells.v dfflegalize -cell $_DLATCHSR_PPP_ x
# Convert everything to DFFs.
design -load orig
dfflegalize -cell $_DLATCH_P_ x
select -assert-count 1 t:$_NOT_
select -assert-count 2 t:$_DLATCH_P_
select -assert-none t:$_DLATCH_P_ t:$_NOT_ %% %n t:* %i
# Convert everything to ADLATCHs.
design -load orig
dfflegalize -cell $_DLATCH_PP0_ x
select -assert-count 1 t:$_NOT_
select -assert-count 2 t:$_DLATCH_PP0_
select -assert-none t:$_DLATCH_PP0_ t:$_NOT_ %% %n t:* %i
# Convert everything to DLATCHSRs.
design -load orig
dfflegalize -cell $_DLATCHSR_PPP_ x
select -assert-count 1 t:$_NOT_
select -assert-count 2 t:$_DLATCHSR_PPP_
select -assert-none t:$_DLATCHSR_PPP_ t:$_NOT_ %% %n t:* %i