Package org.jcsp.plugNplay
Class Nand
- java.lang.Object
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- org.jcsp.plugNplay.Nand
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- All Implemented Interfaces:
CSProcess
public final class Nand extends java.lang.Object implements CSProcess
Bitwise nands two Integer streams to one stream.Process Diagram
in0 ______ -->--| | out in1 | Nand |-->-- -->--|______|
Description
This is a process with an infinite loop that waits for a Object of type Number to be sent down each of its input channels. The loop body then calculates the bitwise NAND on the values of the two Numbers and writes the result as a new Integer to its output channel.Channel Protocols
Input Channels in1,in2 java.lang.Number Both Channels can accept data from any subclass of Number. It is possible to send Floats down one channel Nand Integers down the other. However all values will be converted to ints. Output Channels out java.lang.Integer The output will always be of type Integer. Example
The following example shows how the use of this process in a small program. The program also uses some of the other building block processes. It generates a sequence of numbers, rounds each odd number down to the nearest even number, negates them and prints them to the screen.import org.jcsp.lang.*; import org.jcsp.plugNplay.*; public class NandExample { public static void main (String[] argv) { final One2OneChannel a = Channel.one2one (); final One2OneChannel b = Channel.one2one (); final One2OneChannel c = Channel.one2one (); final One2OneChannel d = Channel.one2one (); new Parallel ( new CSProcess[] { new Numbers (a.out ()), new Generate (b.out (), Integer.MAX_VALUE - 1), new Nand (a.in (), b.in (), c.out ()), new Successor (c.in (), d.out ()), new Printer (d.in (), "--> ", "\n") } ).run (); } }
- Author:
- P.H. Welch and P.D. Austin
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Constructor Summary
Constructors Constructor Description Nand(ChannelInput in1, ChannelInput in2, ChannelOutput out)
Construct a new Nand process with the input Channels in1 and in2 and the output Channel out.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
run()
The main body of this process.
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Constructor Detail
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Nand
public Nand(ChannelInput in1, ChannelInput in2, ChannelOutput out)
Construct a new Nand process with the input Channels in1 and in2 and the output Channel out. The ordering of the Channels in1 and in2 make no difference to the functionality of this process.- Parameters:
in1
- the first input Channelin2
- the second input Channelout
- the output Channel
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