AHDL Function Prototype (port name and order also apply to Verilog HDL)
The following AHDL function prototype is located in the AHDL Include File (.inc) Definitionaltstratixii_oct.inc in the <Intel® Quartus® Prime installation directory>\libraries\megafunctions directory.
FUNCTION altstratixii_oct( rdn, rup, terminationclock, terminationenable ) WITH( lpm_hint, lpm_type ) RETURNS( );