source helpers.tcl

set test_nets "3 48 92 193 200 243 400 521 671"

read_lef sky130hs/sky130hs.tlef
read_def generate_pattern.defok

define_process_corner -ext_model_index 0 X
set_extraction_rules_file ext_pattern.rules
extract_parasitics -cc_model 12 \
  -max_res 0 -context_depth 10 -coupling_threshold 0.1

set spef_file [make_result_file ext_pattern.spef]
write_spef $spef_file -nets $test_nets

diff_files ext_pattern.spefok $spef_file "^\\*(DATE|VERSION)"