Section 16—Compiler Directives

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Section	Construct	Quartus^® Prime Support
16.1	``celldefine` and ``endcelldefine`	Not supported
16.2	``default_nettype`	Supported—The Quartus^® Prime software issues a warning if the value for `default_nettype` is `none`. Module, function, and task ports are exempt and allowed implicitly, even if the value of `default_nettype` value is `none`.
16.3	``define` and ``undef`	Supported
16.4	``ifdef`, ``else`, and ``endif`	Supported
16.5	``include`	Supported
16.6	``resetall`	Supported
16.7	``timescale`	Ignored for synthesis. The Quartus^® Prime software ignores this construct during synthesis.
16.8	``unconnected_drive` and ``nounconnected_drive`	Supported