X-Git-Url: https://mograsim.net/gitweb/?a=blobdiff_plain;f=era.mi%2Fsrc%2Fera%2Fmi%2Flogic%2Fcomponents%2FMux.java;h=0cb4e383632841a5cc2d0529f50b0c5c3df942b1;hb=c1d0ddc342c482051fa6c455bb286617135bd3c3;hp=4e09f9251db7d5ea68f28b8b3bc1b336d44067dc;hpb=bcf8d773c7a836c2ee17e17a49c296ebf31d2777;p=Mograsim.git diff --git a/era.mi/src/era/mi/logic/components/Mux.java b/era.mi/src/era/mi/logic/components/Mux.java index 4e09f925..0cb4e383 100644 --- a/era.mi/src/era/mi/logic/components/Mux.java +++ b/era.mi/src/era/mi/logic/components/Mux.java @@ -5,87 +5,89 @@ import java.util.Arrays; import java.util.Collections; import java.util.List; -import era.mi.logic.wires.WireArray; -import era.mi.logic.wires.WireArray.WireArrayInput; +import era.mi.logic.wires.Wire; +import era.mi.logic.wires.Wire.WireEnd; /** - * Models a multiplexer. Takes an arbitrary amount of input {@link WireArray}s, one of which, - * as determined by select, is put through to the output. + * 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 Mux extends BasicComponent { - private WireArray select; - private WireArrayInput outI; - private WireArray[] inputs; + private WireEnd select; + private WireEnd out; + private WireEnd[] inputs; private final int outputSize; + /** - * Input {@link WireArray}s and out must be of uniform length - * @param out Must be of uniform length with all inputs. - * @param select Indexes the input array which is to be mapped to the output. Must have enough bits - * to index all inputs. + * Input {@link Wire}s and out must be of uniform length + * + * @param out Must be of uniform length with all inputs. + * @param select Indexes the input array which is to be mapped to the output. Must have enough bits to index all inputs. * @param inputs One of these inputs is mapped to the output, depending on the select bits */ - public Mux(int processTime, WireArray out, WireArray select, WireArray... inputs) + public Mux(int processTime, WireEnd out, WireEnd select, WireEnd... inputs) { super(processTime); - outputSize = out.length; - + outputSize = out.length(); + this.inputs = inputs.clone(); - for(int i = 0; i < this.inputs.length; i++) + for (int i = 0; i < this.inputs.length; i++) { - if(inputs[i].length != outputSize) + if (inputs[i].length() != outputSize) throw new IllegalArgumentException("All MUX wire arrays must be of uniform length!"); inputs[i].addObserver(this); } - + this.select = select; select.addObserver(this); - - int maxInputs = 1 << select.length; - if(this.inputs.length > maxInputs) - throw new IllegalArgumentException("There are more inputs (" - + this.inputs.length + ") to the MUX than supported by " - + select.length + " select bits (" + maxInputs + ")."); - - outI = out.createInput(); + + int maxInputs = 1 << select.length(); + if (this.inputs.length > maxInputs) + throw new IllegalArgumentException("There are more inputs (" + this.inputs.length + ") to the MUX than supported by " + + select.length() + " select bits (" + maxInputs + ")."); + + this.out = out; } - - public WireArray getOut() + + public WireEnd getOut() { - return outI.owner; + return out; } - public WireArray getSelect() + public WireEnd getSelect() { return select; } @Override - public void compute() { + public void compute() + { int selectValue; - if(!select.hasNumericValue() || (selectValue = (int) select.getUnsignedValue()) >= inputs.length) + if (!select.hasNumericValue() || (selectValue = (int) select.getUnsignedValue()) >= inputs.length) { - outI.clearSignals(); + out.clearSignals(); return; } - - WireArray active = inputs[selectValue]; - outI.feedSignals(active.getValues()); + + WireEnd active = inputs[selectValue]; + out.feedSignals(active.getValues()); } @Override - public List getAllInputs() + public List getAllInputs() { - ArrayList wires = new ArrayList(Arrays.asList(inputs)); + ArrayList wires = new ArrayList(Arrays.asList(inputs)); wires.add(select); return Collections.unmodifiableList(wires); } @Override - public List getAllOutputs() + public List getAllOutputs() { - return Collections.unmodifiableList(Arrays.asList(outI.owner)); + return Collections.unmodifiableList(Arrays.asList(out)); } }