PPReady

Number of ready cells for Pop in Push Pop Array

Syntax: PPReady(ppindex=0)

ppindex index of PPArray arbiter <0...3>

Returns: Number of available cells to pop.

Notes: If there is the possibility to call Pop without being sure about available cells, then this function should be used to check it. Otherwise, an exception will be raised if Pop is performed on empty or not enough filled PPArray.

Example:

if (PPReady() {
    Pop(arr);
    ...
}