Finding the prefix used for caravel subcells in the user GDS.
User prefix is Tf_
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_00010014.gds
Cell caravel found at position 2818037854
Cell caravel ends at position 2830047706
Cell caravel checksum is 12009824
Info:  Structure caravel matches checksum 12009824
Info:  Structure caravel at 2818037854 to 2830047706 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 Tf_user_id_textblock copyright_block Tf_copyright_block open_source Tf_open_source storage Tf_storage sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped Tf_sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped user_id_programming Tf_user_id_programming simple_por Tf_simple_por gpio_control_block Tf_gpio_control_block mgmt_core Tf_mgmt_core mgmt_protect Tf_mgmt_protect chip_io Tf_chip_io user_project_wrapper Tf_user_project_wrapper ./gds/caravel_00010014_b.gds -debug -verbatim
Original data length = 2830048428
Replaced b'open_source\x00' with b'Tf_open_source'
Replaced b'user_id_textblock\x00' with b'Tf_user_id_textblock'
Replaced b'copyright_block\x00' with b'Tf_copyright_block'
Replaced b'storage\x00' with b'Tf_storage'
Replaced b'sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped' with b'Tf_sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped\x00'
Replaced b'user_id_programming\x00' with b'Tf_user_id_programming'
Replaced b'simple_por' with b'Tf_simple_por\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'mgmt_core\x00' with b'Tf_mgmt_core'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'mgmt_protect' with b'Tf_mgmt_protect\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'Tf_gpio_control_block\x00'
Replaced b'chip_io\x00' with b'Tf_chip_io'
Replaced b'user_project_wrapper' with b'Tf_user_project_wrapper\x00'
Finished.