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vortex/hw/syn/yosys/synth.sh
2021-09-08 23:04:33 -04:00

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#!/bin/bash
# this script uses sv2v and yosys tools to run.
# sv2v: https://github.com/zachjs/sv2v
# yosys: http://www.clifford.at/yosys/
# exit when any command fails
set -e
source=""
top_level=""
dir_list=()
defines=""
usage() { echo "$0 usage:" && grep " .)\ #" $0; exit 0; }
[ $# -eq 0 ] && usage
while getopts "hs:t:I:D:" arg; do
case $arg in
s) # source
source=${OPTARG}
;;
t) # top-level
top_level=${OPTARG}
;;
I) # include directory
dir_list+=(${OPTARG})
;;
D) # macro definition
defines="$defines -D${OPTARG}"
;;
h | *)
usage
exit 0
;;
esac
done
echo "top_level=$top_level, source=$source, defines=$defines"
# process include paths
inc_list=""
for dir in "${dir_list[@]}"
do
echo "include: $dir" >> synth.log
inc_list="$inc_list -I$dir"
done
# process source files
file_list=""
for dir in "${dir_list[@]}"
do
for file in $(find $dir -maxdepth 1 -name '*.v' -o -name '*.sv' -type f)
do
echo "file: $file" >> synth.log
file_list="$file_list $file"
done
done
# system-verilog to verilog conversion
sv2v $defines -w output.v $inc_list $file_list
{
echo "read_verilog -sv output.v"
echo "hierarchy -check -top $top_level"
# insertation of global reset
echo "add -global_input reset 1"
echo "proc -global_arst reset"
echo "synth -run coarse; opt -fine"
echo "tee -o brams.log memory_bram -rules scripts/brams.txt;;"
echo "write_verilog -noexpr -noattr synth.v"
} > synth.ys
yosys -l yosys.log synth.ys