Quartus® II support for compiler directives is described below. Section numbers match those in the IEEE Std 1364-1995 IEEE Hardware Description Language Based on the Verilog Hardware Description Language manual.
| Section | Verilog HDL Construct | Quartus II Support Note (1) |
|---|---|---|
| 16.1 | `celldefine and `endcelldefine |
Not supported. |
| 16.2 | `default_nettype |
Not supported. |
| 16.3 | `define and `undef |
Supported. |
| 16.4 | `ifdef, `else, and `endif |
Supported. |
| 16.5 | `include |
Supported. |
| 16.6 | `resetall |
Not supported. |
| 16.7 | `timescale |
Not supported. |
| 16.8 | `unconnected_drive and `nounconnected_drive |
Not supported. |
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