Intel® Quartus® Prime Pro Edition Settings File Reference Manual

ID 683296
Date 12/12/2022
Public

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PRESERVE_REGISTER

Prevents a register from minimizing away during synthesis and prevents sequential netlist optimizations. Sequential netlist optimizations can eliminate redundant registers and registers with constant drivers.

Type

Boolean

Device Support

  • This setting can be used in projects targeting any Intel FPGA device family.

Notes

This assignment supports Fitter wildcards.

This assignment supports synthesis wildcards.

Syntax


set_global_assignment -name PRESERVE_REGISTER -entity <entity name> <value>
set_instance_assignment -name PRESERVE_REGISTER -to <to> -entity <entity name> <value>

Example


set_instance_assignment -name preserve_register on -to foo