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)
The Intel® Quartus® Prime Compiler uses the VHDL 1993 standard by default for files that have the extension .vhdl or .vhd.
The Intel® Quartus® Prime software support for VHDL is described for the following categories of VHDL constructs. These sections match those in the IEEE Std 1076-1993 version of the IEEE Standard VHDL Language Reference Manual. The constructs of the IEEE Std 1076-2008 version of VHDL are listed in the About VHDL topic.
Support for each VHDL construct is described with one of the following terms:
- Supported— The Intel® Quartus® Prime software offers full support for the construct.
- Not-supported— The construct cannot be used in a VHDL Design File (.vhd) Definition. If used, the construct causes an error when the Intel® Quartus® Prime software compiles the file.
- Ignored— The construct can be included in a VHDL Design File, but it is ignored by the Intel® Quartus® Prime Compiler.
New Features in VHDL 1993