Subprograms
When we write complex behavioral models it is useful to divide the code into sections, each dealing with a relatively self-contained part of the behavior. VHDL-AMS provides a subprogram facility to let us do this. In this chapter, we look at the two kinds of subprograms: procedures and functions. The difference between the two is that a procedure encapsulates a collection of sequential statements that are executed for their effect, whereas a function encapsulates a collection of statements that compute a result. Thus a procedure is a generalization of a statement, whereas a function is a generalization of an expression. Also in this chapter we examine simultaneous procedural statements, which are related to functions ...
Get The System Designer's Guide to VHDL-AMS now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
