Tcl script to save and restore parameters

[Altera_Forum]

Sometimes I want to run a quick compile of a design but don't want to lose all my current Quartus settings. I wrote a simple Tcl script which saves off the current compiler settings, sets the options to compile much more quickly, then restores the options when it is done. You can copy this to a Tcl file and then tie that to the Tcl toolbar. 

 load_package flow # Read and save existing settings set Old_FITTER_EFFORT [get_global_assignment -name FITTER_EFFORT] set Old_PHYSICAL_SYNTHESIS_COMBO_LOGIC [get_global_assignment -name PHYSICAL_SYNTHESIS_COMBO_LOGIC] set Old_PHYSICAL_SYNTHESIS_REGISTER_DUPLICATION [get_global_assignment -name PHYSICAL_SYNTHESIS_REGISTER_DUPLICATION] set Old_PHYSICAL_SYNTHESIS_ASYNCHRONOUS_SIGNAL_PIPELINING [get_global_assignment -name PHYSICAL_SYNTHESIS_ASYNCHRONOUS_SIGNAL_PIPELINING] set Old_PHYSICAL_SYNTHESIS_REGISTER_RETIMING [get_global_assignment -name PHYSICAL_SYNTHESIS_REGISTER_RETIMING] set Old_PHYSICAL_SYNTHESIS_EFFORT [get_global_assignment -name PHYSICAL_SYNTHESIS_EFFORT]   # Make settings so it will compile faster set_global_assignment -name FITTER_EFFORT "FAST FIT" set_global_assignment -name PHYSICAL_SYNTHESIS_COMBO_LOGIC OFF set_global_assignment -name PHYSICAL_SYNTHESIS_REGISTER_DUPLICATION OFF set_global_assignment -name PHYSICAL_SYNTHESIS_ASYNCHRONOUS_SIGNAL_PIPELINING OFF set_global_assignment -name PHYSICAL_SYNTHESIS_REGISTER_RETIMING OFF set_global_assignment -name PHYSICAL_SYNTHESIS_EFFORT FAST   # Compile the design if {[catch {execute_flow -compile} result]} {  puts "ERROR: Compilation failed. See report files.\n" } else {  puts "INFO: Compilation was successful.\n" }   # Restore settings to their previous values set_global_assignment -name FITTER_EFFORT $Old_FITTER_EFFORT set_global_assignment -name PHYSICAL_SYNTHESIS_COMBO_LOGIC $Old_PHYSICAL_SYNTHESIS_COMBO_LOGIC set_global_assignment -name PHYSICAL_SYNTHESIS_REGISTER_DUPLICATION $Old_PHYSICAL_SYNTHESIS_REGISTER_DUPLICATION set_global_assignment -name PHYSICAL_SYNTHESIS_ASYNCHRONOUS_SIGNAL_PIPELINING $Old_PHYSICAL_SYNTHESIS_ASYNCHRONOUS_SIGNAL_PIPELINING set_global_assignment -name PHYSICAL_SYNTHESIS_REGISTER_RETIMING $Old_PHYSICAL_SYNTHESIS_REGISTER_RETIMING set_global_assignment -name PHYSICAL_SYNTHESIS_EFFORT $Old_PHYSICAL_SYNTHESIS_EFFORT