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better ordering of input bus in generated circuits

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This commit is contained in:
hneemann 2017-04-04 21:03:02 +02:00
parent 68193f3156
commit df554b1d97
1 changed files with 33 additions and 26 deletions
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59
src/main/java/de/neemann/digital/builder/circuit/CircuitBuilder.java
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@ -40,7 +40,7 @@ public class CircuitBuilder implements BuilderInterface<CircuitBuilder> {
private final ArrayList<FragmentVariable> fragmentVariables;
private final ArrayList<Fragment> fragments;
private final HashSet<String> combinatorialOutputs;
private final HashSet<String> createdNets;
private final ArrayList<Variable> sequentialVars;
private final ArrayList<FragmentVisualElement> flipflops;
private final boolean useJKff;
private int pos;
@ -69,7 +69,7 @@ public class CircuitBuilder implements BuilderInterface<CircuitBuilder> {
fragments = new ArrayList<>();
flipflops = new ArrayList<>();
combinatorialOutputs = new HashSet<>();
createdNets = new HashSet<>();
sequentialVars = new ArrayList<>();
}
/**
@ -118,8 +118,6 @@ public class CircuitBuilder implements BuilderInterface<CircuitBuilder> {
flipflops.add(ff);
FragmentSameInValue fsv = new FragmentSameInValue(ff);
FragmentExpression fe = new FragmentExpression(fsv, new FragmentVisualElement(Tunnel.DESCRIPTION, shapeFactory).setAttr(Keys.NETNAME, name));
createdNets.add(name);
fragments.add(new FragmentExpression(frJ, fe));
} else {
Fragment frJ = createFragment(jk.getSimplifiedJ());
@ -127,7 +125,6 @@ public class CircuitBuilder implements BuilderInterface<CircuitBuilder> {
FragmentVisualElement ff = new FragmentVisualElement(FlipflopJK.DESCRIPTION, shapeFactory).ignoreInput(1).setAttr(Keys.LABEL, name);
flipflops.add(ff);
FragmentExpression fe = new FragmentExpression(ff, new FragmentVisualElement(Tunnel.DESCRIPTION, shapeFactory).setAttr(Keys.NETNAME, name));
createdNets.add(name);
fragments.add(new FragmentExpression(Arrays.asList(frJ, frK), fe));
}
}
@ -140,10 +137,10 @@ public class CircuitBuilder implements BuilderInterface<CircuitBuilder> {
FragmentVisualElement ff = new FragmentVisualElement(FlipflopD.DESCRIPTION, shapeFactory).setAttr(Keys.LABEL, name);
flipflops.add(ff);
FragmentExpression fe = new FragmentExpression(ff, new FragmentVisualElement(Tunnel.DESCRIPTION, shapeFactory).setAttr(Keys.NETNAME, name));
createdNets.add(name);
fragments.add(new FragmentExpression(fr, fe));
}
expression.traverse(variableVisitor);
sequentialVars.add(new Variable(name));
return this;
}
@ -202,7 +199,7 @@ public class CircuitBuilder implements BuilderInterface<CircuitBuilder> {
pos -= SIZE;
for (Variable v : inputs) {
VisualElement visualElement;
if (createdNets.contains(v.getIdentifier())) {
if (sequentialVars.contains(v)) {
visualElement = new VisualElement(Tunnel.DESCRIPTION.getName()).setShapeFactory(shapeFactory);
visualElement.getElementAttributes()
.set(Keys.ROTATE, new Rotation(1))
@ -271,7 +268,7 @@ public class CircuitBuilder implements BuilderInterface<CircuitBuilder> {
if (maxWidth < b.getWidth()) maxWidth = b.getWidth();
}
// add space for clock wire!
if (!createdNets.isEmpty())
if (!sequentialVars.isEmpty())
maxWidth += SIZE * 2;
// set width to fragments
@ -288,18 +285,9 @@ public class CircuitBuilder implements BuilderInterface<CircuitBuilder> {
// order bus variables
Collection<Variable> variables = variableVisitor.getVariables();
if (!createdNets.isEmpty()) {
ArrayList<Variable> c1 = new ArrayList<>();
ArrayList<Variable> c2 = new ArrayList<>();
for (Variable v : variables)
if (createdNets.contains(v.getIdentifier()))
c2.add(v);
else
c1.add(v);
if (!sequentialVars.isEmpty())
variables = order(variables, sequentialVars);
c1.addAll(c2);
variables = c1;
}
createInputBus(variables, circuit);
@ -307,13 +295,31 @@ public class CircuitBuilder implements BuilderInterface<CircuitBuilder> {
if (!flipflops.isEmpty())
addClockTpFlipFlops(circuit);
if (!createdNets.isEmpty())
if (!sequentialVars.isEmpty())
addNetConnections(circuit, maxWidth + SIZE * 5);
circuit.setNotModified();
return circuit;
}
/**
* Move the lastItems to the end of the variables list.
* Items which are not in lastItems are placed at the beginning of the result list
*
* @param variables the variables to order
* @param lastItems the items to be placed at the end of the list
* @return the ordered list
*/
private static <T> ArrayList<T> order(Collection<T> variables, ArrayList<T> lastItems) {
ArrayList<T> vars = new ArrayList<>(variables);
for (T seq : lastItems)
if (vars.contains(seq)) {
vars.remove(seq); // move to end
vars.add(seq);
}
return vars;
}
private void addClockTpFlipFlops(Circuit circuit) {
int x = Integer.MAX_VALUE;
int yMin = Integer.MAX_VALUE;
@ -349,14 +355,15 @@ public class CircuitBuilder implements BuilderInterface<CircuitBuilder> {
private void addNetConnections(Circuit circuit, int xPos) {
int y = -SIZE * 5;
ArrayList<String> list = new ArrayList<>(createdNets);
Collections.sort(list);
for (String name : list) {
String oName = name;
if (name.endsWith("n")) oName = name.substring(0, name.length() - 1);
for (Variable name : sequentialVars) {
String oName = name.getIdentifier();
if (oName.endsWith("n")) {
oName = oName.substring(0, oName.length() - 1);
if (oName.endsWith("_")) oName = oName.substring(0, oName.length() - 1);
}
if (!combinatorialOutputs.contains(oName)) {
VisualElement t = new VisualElement(Tunnel.DESCRIPTION.getName()).setShapeFactory(shapeFactory);
t.getElementAttributes().set(Keys.NETNAME, name);
t.getElementAttributes().set(Keys.NETNAME, name.getIdentifier());
t.setPos(new Vector(xPos, y));
t.setRotation(2);
circuit.add(t);