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Jasper's elaborate -bbox_i seems to have no effect

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I'm trying to use Jasper for checking parameter propagation in a large design. I have a list of top-level parameters, each with a HDL path of a module parameter somewhere lower in the hierarchy that's supposed to receive its value from the top-level module. The FPV app seems like an excellent tool for this, but elaborating the entire design in it is extremely time-consuming and memory-intensive. So, I'm trying to black-box everything but the interesting HDL paths. I thought using `elaborate -top dut_module_name -bbox_i * -no_bbox_i inst_foo -no_bbox_i inst_bar (...)` would work, but it doesn't. Jasper just starts flooding the log with warnings from modules that are definitely not on the whitebox list, and eventually dies due to insufficient memory. When I use -bbox_m * it correctly elaborates the top-level module with all of its sub-modules black-boxed. But then the -no_bbox_i switches have no effect. Could anyone suggest a working solution for this use case?


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