Decrement, Increment

Summary:
These functions increment and decrement X by Y, to form Z.  The width of X and Z is
controlled by Width. When Y is HIGH, the input is incremented (or decremented).  When 
Y is LOW, the input is passed  to the output.  The type of the adder is controlled 
by AdderType.  The adder is always optimized for minimum possible delay.

Function: 
    Z=X+Y (Increment)
    Z=X-Y (Decrement)

Signals:
    Z: Width wide output
    X: Width wide input
    Y: 1-bit input (HIGH to increment/decrement)

Parameters:
    Name: actual module name
    Width: width of the X,Y and Z signals
    AdderType: type of the adder to build  (cla, fastcla, clsa, csa)

Verilog Usage:  
    Name(X,Y,Z);

Version: $Id: Decrement.help,v 1.4 1994/09/19 22:43:23 peter Exp $