yosys/backends/btor/verilog2btor.sh

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#!/bin/sh
#
# Script to writing btor from verilog design
#
if [ "$#" -ne 3 ]; then
echo "Usage: $0 input.v output.btor top-module-name" >&2
exit 1
fi
if ! [ -e "$1" ]; then
echo "$1 not found" >&2
exit 1
fi
FULL_PATH=$(readlink -f $1)
DIR=$(dirname $FULL_PATH)
./yosys -q -p "
read_verilog $1;
hierarchy -top $3;
hierarchy -libdir $DIR;
hierarchy -check;
proc;
opt; opt_const -mux_undef; opt;
rename -hide;;;
techmap -share_map pmux2mux.v;;
splice; opt;
memory_dff -wr_only;
memory_collect;;
flatten;;
memory_unpack;
splitnets -driver;
setundef -zero -undriven;
opt;;;
write_btor $2;"