Intel® Quartus® Prime Pro Edition User Guide: Design Compilation

ID 683236
Date 12/04/2023
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2.15.2. VHDL Synthesis Support

Intel® Quartus® Prime synthesis supports the following VHDL language standards.
  • VHDL 1987 (IEEE Standard 1076-1987)
  • VHDL 1993 (IEEE Standard 1076-1993)
  • VHDL 2008 (IEEE Standard 1076-2008)
  • VHDL 2019 (IEEE Standard 1076-2019)

The Intel® Quartus® Prime Compiler uses the VHDL 1993 standard by default for files that have the extension .vhdl or .vhd.

Note: The VHDL code samples follow the VHDL 1993 standard.
Only a subset of the features introduced by in VHDL 2019 are supported: Interfaces and Conditional Analysis.