Finding the prefix used for caravel subcells in the user GDS.
User prefix is F0_
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_00010026.gds
Cell caravel found at position 2763038866
Cell caravel ends at position 2775048718
Cell caravel checksum is 12009824
Info:  Structure caravel matches checksum 12009824
Info:  Structure caravel at 2763038866 to 2775048718 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 F0_user_id_textblock copyright_block F0_copyright_block open_source F0_open_source storage F0_storage sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped F0_sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped user_id_programming F0_user_id_programming simple_por F0_simple_por gpio_control_block F0_gpio_control_block mgmt_core F0_mgmt_core mgmt_protect F0_mgmt_protect chip_io F0_chip_io user_project_wrapper F0_user_project_wrapper ./gds/caravel_00010026_b.gds -debug -verbatim
Original data length = 2775049440
Replaced b'open_source\x00' with b'F0_open_source'
Replaced b'user_id_textblock\x00' with b'F0_user_id_textblock'
Replaced b'copyright_block\x00' with b'F0_copyright_block'
Replaced b'storage\x00' with b'F0_storage'
Replaced b'sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped' with b'F0_sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped\x00'
Replaced b'user_id_programming\x00' with b'F0_user_id_programming'
Replaced b'simple_por' with b'F0_simple_por\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'mgmt_core\x00' with b'F0_mgmt_core'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'mgmt_protect' with b'F0_mgmt_protect\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'F0_gpio_control_block\x00'
Replaced b'chip_io\x00' with b'F0_chip_io'
Replaced b'user_project_wrapper' with b'F0_user_project_wrapper\x00'
Finished.