macrofunction

A high-level building block that can be used together with gate and flipflop primitives and/or megafunctions in Quartus^® II design files.

In general, Altera® recommends using megafunctions in preference to equivalent macrofunctions in all new projects. Megafunctions are easier to scale to different sizes and may offer more efficient logic synthesis and device implementation. The Quartus II software supports macrofunctions only for backward compatibility with designs created with other EDA tools.