VHDL version

Directs the Compiler or Simulator to process VHDL Design File (.vhd) Definition using the specified standard. You can select one of the following options:

• VHDL 1987—Directs the Compiler or Simulator to process VHDL Design Files using the IEEE Std 1076-1987 VHDL standard.

• VHDL 1993—Directs the Compiler or Simulator to process VHDL Design Files using the IEEE Std 1076-1993 VHDL standard. By default, this option is selected.
• VHDL 2008—Directs the Compiler or Simulator to process VHDL Design Files using the IEEE Std 1076-2008 VHDL standard.
• VHDL 2019—Directs the Compiler or Simulator to process VHDL Design Files using the IEEE Std 1076-2019 VHDL standard.