Finding the prefix used for caravel subcells in the user GDS.
User prefix is 9c_
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_00010009.gds
Cell caravel found at position 2902053746
Cell caravel ends at position 2914063598
Cell caravel checksum is 12009824
Info:  Structure caravel matches checksum 12009824
Info:  Structure caravel at 2902053746 to 2914063598 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 9c_user_id_textblock copyright_block 9c_copyright_block open_source 9c_open_source storage 9c_storage sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped 9c_sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped user_id_programming 9c_user_id_programming simple_por 9c_simple_por gpio_control_block 9c_gpio_control_block mgmt_core 9c_mgmt_core mgmt_protect 9c_mgmt_protect chip_io 9c_chip_io user_project_wrapper 9c_user_project_wrapper ./gds/caravel_00010009_b.gds -debug -verbatim
Original data length = 2914064320
Replaced b'open_source\x00' with b'9c_open_source'
Replaced b'user_id_textblock\x00' with b'9c_user_id_textblock'
Replaced b'copyright_block\x00' with b'9c_copyright_block'
Replaced b'storage\x00' with b'9c_storage'
Replaced b'sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped' with b'9c_sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped\x00'
Replaced b'user_id_programming\x00' with b'9c_user_id_programming'
Replaced b'simple_por' with b'9c_simple_por\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'mgmt_core\x00' with b'9c_mgmt_core'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'mgmt_protect' with b'9c_mgmt_protect\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'9c_gpio_control_block\x00'
Replaced b'chip_io\x00' with b'9c_chip_io'
Replaced b'user_project_wrapper' with b'9c_user_project_wrapper\x00'
Finished.