X-Git-Url: https://mograsim.net/gitweb/?a=blobdiff_plain;f=net.mograsim.logic.core%2Fsrc%2Fnet%2Fmograsim%2Flogic%2Fcore%2Fcomponents%2FDemux.java;fp=net.mograsim.logic.core%2Fsrc%2Fnet%2Fmograsim%2Flogic%2Fcore%2Fcomponents%2FDemux.java;h=0000000000000000000000000000000000000000;hb=0a04a4ed66ecebd4254541c4977599f6052c115a;hp=5cf80747563af21c74610b630fa32b197fa2cead;hpb=9b4850366c29fbd800ee8df1858c398d8c35a0c0;p=Mograsim.git diff --git a/net.mograsim.logic.core/src/net/mograsim/logic/core/components/Demux.java b/net.mograsim.logic.core/src/net/mograsim/logic/core/components/Demux.java deleted file mode 100644 index 5cf80747..00000000 --- a/net.mograsim.logic.core/src/net/mograsim/logic/core/components/Demux.java +++ /dev/null @@ -1,82 +0,0 @@ -package net.mograsim.logic.core.components; - -import java.util.List; - -import net.mograsim.logic.core.timeline.Timeline; -import net.mograsim.logic.core.wires.Wire; -import net.mograsim.logic.core.wires.Wire.ReadEnd; -import net.mograsim.logic.core.wires.Wire.ReadWriteEnd; - -/** - * Models a multiplexer. Takes an arbitrary amount of input {@link Wire}s, one of which, as determined by select, is put through to the - * output. - * - * @author Fabian Stemmler - * - */ -public class Demux extends BasicComponent -{ - private final ReadEnd select, in; - private final ReadWriteEnd[] outputs; - private final int outputSize; - private int selected = -1; - - /** - * Output {@link Wire}s and in must be of uniform width - * - * @param in Must be of uniform width with all outputs. - * @param select Indexes the output array to which the input is mapped. Must have enough bits to index all outputs. - * @param outputs One of these outputs receives the input signal, depending on the select bits - */ - public Demux(Timeline timeline, int processTime, ReadEnd in, ReadEnd select, ReadWriteEnd... outputs) - { - super(timeline, processTime); - outputSize = in.width(); - - this.in = in; - this.outputs = outputs; - for (int i = 0; i < this.outputs.length; i++) - { - if (outputs[i].width() != outputSize) - throw new IllegalArgumentException("All DEMUX wire arrays must be of uniform width!"); - this.outputs[i] = outputs[i]; - } - - this.select = select; - select.registerObserver(this); - - int maxInputs = 1 << select.width(); - if (this.outputs.length > maxInputs) - throw new IllegalArgumentException("There are more outputs (" + this.outputs.length + ") to the DEMUX than supported by " - + select.width() + " select bits (" + maxInputs + ")."); - in.registerObserver(this); - } - - @Override - public void compute() - { - int selectValue = select.hasNumericValue() ? (int) select.getUnsignedValue() : -1; - if (selectValue >= outputs.length) - selectValue = -1; - - if (selected != selectValue && selected != -1) - outputs[selected].clearSignals(); - - selected = selectValue; - - if (selectValue != -1) - outputs[selectValue].feedSignals(in.getValues()); - } - - @Override - public List getAllInputs() - { - return List.of(in, select); - } - - @Override - public List getAllOutputs() - { - return List.of(outputs); - } -}