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<h3 id='___replace_sub_module_netlist'>replace_sub_module_netlist</h3>
<pre>Replace sub-module in the design by a new re-synthesized sub-module netlist and write to a new top netlist
<b>Usage:</b> replace_sub_module_netlist($new_top_netlist_file);
$new_top_netlist_file: The replaced and new top level full netlist to be written out
<b>Examples:</b>
#1. Replace sub-module 'mem_controller', 'ahb_arb' hierarchically, and 'mem_ahb_top' module, and write out to a new full netlist
read_library("tsmc.lib");
read_design("-imp", "top_ref.gv");
read_sub_module_netlist("new_mem_controller.gv", "-module", "mem_controller");
read_sub_module_netlist("new_ahb_arb.gv", "-module", "ahb_arb");
read_sub_module_netlist("new_mem_ahb_top.v", "-module", "mem_ahb_top", "-sub_only");
replace_sub_module_netlist("new_top_ref.gv");
#2. Replace sub-module 'mem_controller', 'ahb_arb' hierarchically in netlist and SVF, replace 'mem_ahb_top' module only,
and write out to a new full SVF file and a new netlist
read_library("tsmc.lib");
read_svf("-imp", "top_ref.svf");
read_design("-imp", "top_ref.gv");
read_sub_module_svf("new_mem_controller.svf", "-module", "mem_controller");
read_sub_module_svf("new_ahb_arb.svf", "-module", "ahb_arb");
read_sub_module_netlist("new_mem_controller.gv", "-module", "mem_controller");
read_sub_module_netlist("new_ahb_arb.gv", "-module", "ahb_arb");
read_sub_module_netlist("new_mem_ahb_top.v", "-module", "mem_ahb_top", "-sub_only"); # This module is parent module with instantiation only
replace_sub_module_netlist("new_top_ref.gv"); # Run netlist replacement first
replace_sub_module_svf("new_top_ref.svf"); # Then SVF replacement
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