Finding the prefix used for caravel subcells in the user GDS.
User prefix is PG_
Replacing cell caravel in the user GDS file.
Reading GDS file for alternate cell caravel
Cell caravel found at position 235669746
Cell caravel ends at position 247680056
Reading GDS file for original source ./gds/caravel_00010019.gds
Cell caravel found at position 2572572906
Cell caravel ends at position 2584582758
Cell caravel checksum is 12009824
Info:  Structure caravel matches checksum 12009824
Info:  Structure caravel at 2572572906 to 2584582758 will be replaced by alternate data.
Prefixing caravel subcells in the user GDS
Running:  /usr/share/pdk/bin/change_gds_string.py user_id_textblock PG_user_id_textblock copyright_block PG_copyright_block open_source PG_open_source storage PG_storage sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped PG_sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped user_id_programming PG_user_id_programming simple_por PG_simple_por gpio_control_block PG_gpio_control_block mgmt_core PG_mgmt_core mgmt_protect PG_mgmt_protect chip_io PG_chip_io user_project_wrapper PG_user_project_wrapper ./gds/caravel_00010019_b.gds -debug -verbatim
Original data length = 2584583480
Replaced b'open_source\x00' with b'PG_open_source'
Replaced b'user_id_textblock\x00' with b'PG_user_id_textblock'
Replaced b'copyright_block\x00' with b'PG_copyright_block'
Replaced b'storage\x00' with b'PG_storage'
Replaced b'sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped' with b'PG_sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped\x00'
Replaced b'user_id_programming\x00' with b'PG_user_id_programming'
Replaced b'simple_por' with b'PG_simple_por\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'mgmt_core\x00' with b'PG_mgmt_core'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'mgmt_protect' with b'PG_mgmt_protect\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'PG_gpio_control_block\x00'
Replaced b'chip_io\x00' with b'PG_chip_io'
Replaced b'user_project_wrapper' with b'PG_user_project_wrapper\x00'
Finished.