port is in the logic domain, terminal is in the physical domain. One port may corresponding to multiple terminals.
get_attribute and report_attribute
get_attribute is to get specific attribute.
report_attribute is to report the full attribute of the object.
get_xxx commands could be embedded with other commands, it will return a list which be processed by other command.
report_xxx pretty much is only for display purpose only, you can't send the result to another tcl command to process.
attribute is a very powerful thing to use to label object and retrieve the label to manipulate.
get_command_option_values
gui_change_highlight -collection [get_cells -hier "*" -filter "@is_hard_macro == true"] -color red
change_selection
go x y
gui_zoom -window Layout.1 -selection
time will return the time spent on the execution of the command.
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