Quartus® Prime Pro Edition Settings File Reference Manual

ID 683296
Date 4/01/2024
Public

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PRESERVE

Directs the compiler to preserve the existing results of a partition. The value of this assignment is the snapshot to preserve, such as \"final\" or \"placed.\" If the specified snapshot does not exist, the compiler will exit with an error message. By default, the partition's results will not be preserved unless the only results available for the partition are later than the stage currently being compiled. For example, if the only snapshot for a partition is the \"placed\" snapshot, the Fitter will preserve the partition until the end of placement, and will not attempt to preserve it during routing.

Type

String

Device Support

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

Notes

The value of this assignment is case sensitive.

Syntax

set_instance_assignment -name PRESERVE -to <to> -entity <entity name> <value>