allow toolchain config parameters

src/main/dig/hdl/BASYS3.config

@@ -7,10 +7,15 @@
             <arg>vivado/&lt;?=shortname?&gt;.xpr</arg>
         </command>
     </commands>
+    <params>
+        <!-- used by the Vivado project template -->
+        <param name="chip">xc7a35ticpg236-1L</param>
+        <param name="extension">.vhdl</param>
+    </params>
     <files>
         <file name="clockGenerator.vhdl" overwrite="true" filter="true" id="MMCME2_BASE">
             <content><![CDATA[
-<? if (hdl.frequency<4687500) { ?>
+<? if (model.frequency<4687500) { ?>
 LIBRARY ieee;
 USE ieee.std_logic_1164.all;
 USE ieee.numeric_std.all;
@@ -22,7 +27,7 @@ entity clockGenerator is
     cin: in std_logic );
 end clockGenerator;
 
-<? maxCounter:=100000000 / (2 * hdl.frequency);?>
+<? maxCounter:=100000000 / (2 * model.frequency);?>
 
 architecture Behavioral of clockGenerator is
   -- Don't use a logic signal as clock source in a real world application!
@@ -89,7 +94,7 @@ begin
 
   M_IDEAL := D_MIN*VCO_MAX/F_IN;
 
-  F_DES := hdl.frequency/1000000.0;
+  F_DES := model.frequency/1000000.0;
 
   bestError:=F_DES;
   bestErrorM:=M_MAX;
@@ -205,11 +210,11 @@ end Behavioral;
 <? } ?>
 ]]></content>
         </file>
-        <file name="&lt;?=shortname?&gt;_constraints.xdc" overwrite="true" filter="true">
+        <file name="&lt;?=shortname?&gt;_constraints.xdc" overwrite="true" filter="true" id="constraints.xdc">
             <content><![CDATA[<?
 
-for (i:=0; i<sizeOf(hdl.ports);i++) {
+for (i:=0; i<sizeOf(model.ports);i++) {
-    port:=hdl.ports[i];
+    port:=model.ports[i];
     if (port.bits=1) {
         print("set_property PACKAGE_PIN "+port.pin+" [get_ports "+port.name+"]\n");
         print("set_property IOSTANDARD LVCMOS33 [get_ports "+port.name+"]\n\n");
@@ -225,30 +230,32 @@ print("set_property CONFIG_VOLTAGE 3.3 [current_design]\n");
 
             ?>]]></content>
         </file>
-        <file name="vivado/&lt;?=shortname?&gt;.xpr" overwrite="false" filter="true">
+        <file name="vivado/&lt;?=shortname?&gt;.xpr" overwrite="false" filter="true" id="vivado">
             <content><![CDATA[<?print("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");?>
 <!-- Created by Digital -->
 
 <Project Version="7" Minor="20" Path="<?=dir?>/vivado/<?=shortname?>.xpr">
   <DefaultLaunch Dir="$PRUNDIR"/>
   <Configuration>
-    <Option Name="Part" Val="xc7a35ticpg236-1L"/>
+    <Option Name="Part" Val="<?=chip?>"/>
   </Configuration>
   <FileSets Version="1" Minor="31">
     <FileSet Name="sources_1" Type="DesignSrcs" RelSrcDir="$PSRCDIR/sources_1">
       <Filter Type="Srcs"/>
-      <File Path="$PPRDIR/../<?=shortname?>.vhdl">
+      <File Path="$PPRDIR/../<?=shortname?><?=extension?>">
         <FileInfo>
           <Attr Name="UsedIn" Val="synthesis"/>
           <Attr Name="UsedIn" Val="simulation"/>
         </FileInfo>
       </File>
-      <File Path="$PPRDIR/../clockGenerator.vhdl">
+<? if (isPresent("clockGenerator")) { ?>
+      <File Path="$PPRDIR/../<?=clockGenerator?><?=extension?>">
         <FileInfo>
           <Attr Name="UsedIn" Val="synthesis"/>
           <Attr Name="UsedIn" Val="simulation"/>
         </FileInfo>
       </File>
+<? } ?>
       <Config>
         <Option Name="DesignMode" Val="RTL"/>
         <Option Name="TopModule" Val="main"/>

src/main/dig/hdl/VerilogClockExample.config

@@ -1,20 +1,25 @@
 <!-- if a clockGenerator is given, this config needs to create the required source code -->
-<toolchain name="VerilogClockTest" clockGenerator="clockGenerator">
+<toolchain name="VerilogClockExample" clockGenerator="clockGenerator">
     <commands>
         <command name="Export" requires="verilog"/>
     </commands>
+    <params>
+        <!-- used by the Vivado project template -->
+        <param name="chip">xc7a35ticpg236-1L</param>
+        <param name="extension">.v</param>
+    </params>
     <files>
         <file name="clockGenerator.v" overwrite="true" filter="true">
             <content><![CDATA[<?
     // Add the board specific clock generation here!
     // This example assumes a 100MHz clock and creates a simple clock divider to
     // match the input clock frequency given in the circuit.
-    // The variable hdl.frequency holds the frequency selected in the circuits
+    // The variable model.frequency holds the frequency selected in the circuits
     // clock component.
 
-    board_f := 100000000; // assuming a 100MHz clock
+    board_frequency := 100000000; // assuming a 100MHz clock
 
-    maxCounter := board_f/hdl.frequency/2;
+    maxCounter := board_frequency/model.frequency/2;
     bits := bitsNeededFor(maxCounter);
 
 ?>module clockGenerator
@@ -45,42 +50,6 @@ endmodule
 ]]></content>
         </file>
         <!-- creates a vivado project file which simplifies testing -->
-        <file name="vivado/&lt;?=shortname?&gt;.xpr" overwrite="false" filter="true">
+        <file name="vivado/&lt;?=shortname?&gt;.xpr" overwrite="false" filter="true" lookAt="BASYS3.config" ref="vivado"/>
-            <content><![CDATA[<?print("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");?>
-<Project Version="7" Minor="20" Path="<?=dir?>/vivado/<?=shortname?>.xpr">
-  <DefaultLaunch Dir="$PRUNDIR"/>
-  <Configuration>
-    <Option Name="Part" Val="xc7a35ticpg236-1L"/>
-  </Configuration>
-  <FileSets Version="1" Minor="31">
-    <FileSet Name="sources_1" Type="DesignSrcs" RelSrcDir="$PSRCDIR/sources_1">
-      <Filter Type="Srcs"/>
-      <File Path="$PPRDIR/../<?=shortname?>.v">
-        <FileInfo>
-          <Attr Name="UsedIn" Val="synthesis"/>
-          <Attr Name="UsedIn" Val="simulation"/>
-        </FileInfo>
-      </File>
-      <File Path="$PPRDIR/../clockGenerator.v">
-        <FileInfo>
-          <Attr Name="UsedIn" Val="synthesis"/>
-          <Attr Name="UsedIn" Val="simulation"/>
-        </FileInfo>
-      </File>
-      <Config>
-        <Option Name="DesignMode" Val="RTL"/>
-        <Option Name="TopModule" Val="main"/>
-        <Option Name="TopAutoSet" Val="TRUE"/>
-      </Config>
-    </FileSet>
-    <FileSet Name="constrs_1" Type="Constrs" RelSrcDir="$PSRCDIR/constrs_1">
-      <Filter Type="Constrs"/>
-      <Config>
-        <Option Name="ConstrsType" Val="XDC"/>
-      </Config>
-    </FileSet>
-  </FileSets>
-</Project>]]></content>
-        </file>
     </files>
 </toolchain>

src/main/java/de/neemann/digital/toolchain/Configuration.java

@@ -24,6 +24,7 @@ import de.neemann.digital.hdl.verilog2.VerilogGenerator;
 import de.neemann.digital.hdl.vhdl2.VHDLGenerator;
 import de.neemann.digital.lang.Lang;
 import de.neemann.gui.ErrorMessage;
+import de.neemann.gui.language.Resources;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -32,6 +33,7 @@ import java.awt.event.ActionEvent;
 import java.io.*;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Map;
 
 /**
  * Used to create the IDE integration
@@ -76,6 +78,8 @@ public final class Configuration {
         xStream.aliasAttribute(Configuration.class, "name", "name");
         xStream.aliasAttribute(Configuration.class, "frequency", "frequency");
         xStream.aliasAttribute(Configuration.class, "clockGenerator", "clockGenerator");
+        xStream.aliasAttribute(Configuration.class, "params", "params");
+        xStream.registerConverter(new Resources.MapEntryConverter("param"));
         xStream.alias("command", Command.class);
         xStream.aliasAttribute(Command.class, "name", "name");
         xStream.aliasAttribute(Command.class, "requires", "requires");
@@ -97,6 +101,7 @@ public final class Configuration {
     private String clockGenerator;
     private ArrayList<Command> commands;
     private ArrayList<FileToCreate> files;
+    private Map<String, String> params;
     private transient FilenameProvider filenameProvider;
     private transient CircuitProvider circuitProvider;
     private transient LibraryProvider libraryProvider;
@@ -173,17 +178,40 @@ public final class Configuration {
         }
     }
 
-    private Context createContext(File fileToExecute, HDLModel hdlModel) throws HGSEvalException {
+    private Context createContext(File fileToExecute, HDLModel hdlModel, Command command) throws HGSEvalException {
         final Context context = new Context()
                 .declareVar("path", fileToExecute.getPath())
                 .declareVar("dir", fileToExecute.getParentFile())
                 .declareVar("name", fileToExecute.getName())
                 .declareVar("shortname", createShortname(fileToExecute.getName()));
+
+        if (params != null)
+            for (Map.Entry<String, String> e : params.entrySet())
+                context.declareVar(e.getKey(), toHGLValue(e.getValue()));
+
+        if (command.needsHDL())
+            context.declareVar("hdl", command.getHDL());
+
+        if (clockGenerator != null)
+            context.declareVar("clockGenerator", clockGenerator);
+
         if (hdlModel != null)
-            context.declareVar("hdl", new ModelAccess(hdlModel.getMain()));
+            context.declareVar("model", new ModelAccess(hdlModel.getMain()));
         return context;
     }
 
+    private Object toHGLValue(String value) {
+        try {
+            return Long.parseLong(value);
+        } catch (NumberFormatException e1) {
+            try {
+                return Double.parseDouble(value);
+            } catch (NumberFormatException e2) {
+                return value;
+            }
+        }
+    }
+
     private IOInterface getIoInterface() {
         if (ioInterface == null)
             ioInterface = new DefaultIOInterface();
@@ -246,13 +274,13 @@ public final class Configuration {
                     action.setEnabled(false);
                 Thread t = new Thread(() -> {
                     try {
-                        checkFilesToCreate(digFile, hdlModel);
+                        checkFilesToCreate(digFile, hdlModel, command);
 
                         String[] args = command.getArgs();
                         if (args != null) {
                             if (command.isFilter()) {
                                 final int argCount = command.getArgs().length;
-                                Context context = createContext(digFile, hdlModel);
+                                Context context = createContext(digFile, hdlModel, command);
                                 for (int i = 0; i < argCount; i++) {
                                     context.clearOutput();
                                     new Parser(args[i]).parse().execute(context);
@@ -278,14 +306,17 @@ public final class Configuration {
         return null;
     }
 
-    private void checkFilesToCreate(File fileToExecute, HDLModel hdlModel) throws HGSEvalException, IOException, ParserException {
+    private void checkFilesToCreate(File fileToExecute, HDLModel hdlModel, Command command) throws HGSEvalException, IOException, ParserException {
-        Context context = createContext(fileToExecute, hdlModel);
+        Context context = createContext(fileToExecute, hdlModel, command);
 
         if (files != null) {
             ConfigCache configCache = new ConfigCache(origin);
             for (FileToCreate f : files) {
                 context.clearOutput();
-                Parser p = new Parser(f.getName());
+                final String name = f.getName();
+                if (name == null)
+                    throw new IOException("no file name given!");
+                Parser p = new Parser(name);
                 p.parse().execute(context);
                 File filename = new File(fileToExecute.getParent(), context.toString());
 

src/main/java/de/neemann/gui/language/Bundle.java

@@ -22,7 +22,7 @@ public class Bundle {
     private static XStream getxStream() {
         XStream xStream = new XStream(new StaxDriver());
         xStream.alias("languages", Map.class);
-        xStream.registerConverter(new Resources.MapEntryConverter());
+        xStream.registerConverter(new Resources.MapEntryConverter("string"));
         return xStream;
     }
 

src/main/java/de/neemann/gui/language/Resources.java

@@ -19,13 +19,14 @@ import java.nio.charset.StandardCharsets;
 import java.util.*;
 
 /**
+ * Used to store the language keys.
  */
 public class Resources {
 
     private static XStream getxStream() {
         XStream xStream = new XStream(new StaxDriver());
         xStream.alias("resources", Map.class);
-        xStream.registerConverter(new MapEntryConverter());
+        xStream.registerConverter(new MapEntryConverter("string"));
         return xStream;
     }
 
@@ -92,23 +93,57 @@ public class Resources {
         return resourceMap.keySet();
     }
 
-    static class MapEntryConverter implements Converter {
+    /**
+     * Simplified map converter
+     */
+    public static class MapEntryConverter implements Converter {
 
+        private String keyName;
+
+        /**
+         * Creates a new Instance
+         *
+         * @param keyName the name of the xml entity
+         */
+        public MapEntryConverter(String keyName) {
+            this.keyName = keyName;
+        }
+
+        /**
+         * Returns true if the given class can be converted by this converter.
+         *
+         * @param clazz the class to test.
+         * @return true if the given class can be converted by this converter.
+         */
         public boolean canConvert(Class clazz) {
             return Map.class.isAssignableFrom(clazz);
         }
 
+        /**
+         * Marshals the given object
+         *
+         * @param value   the value to matshal
+         * @param writer  the writer to write the xml to
+         * @param context the context of the marshaler
+         */
         public void marshal(Object value, HierarchicalStreamWriter writer, MarshallingContext context) {
             Map map = (Map) value;
             for (Object obj : map.entrySet()) {
                 Map.Entry entry = (Map.Entry) obj;
-                writer.startNode("string");
+                writer.startNode(keyName);
                 writer.addAttribute("name", entry.getKey().toString());
                 writer.setValue(entry.getValue().toString());
                 writer.endNode();
             }
         }
 
+        /**
+         * Unmarshals a object
+         *
+         * @param reader  the reader to read the xml from
+         * @param context the context of the unmarshaler
+         * @return the read object
+         */
         public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
             Map<String, String> map = new TreeMap<>();
             while (reader.hasMoreChildren()) {

src/test/java/de/neemann/digital/toolchain/BASYS3Test.java

@@ -26,7 +26,7 @@ public class BASYS3Test extends TestCase {
         String content = clock.getContent();
         for (int f = 4688; f < 500000; f+=77) {
             Context context = new Context().disableLogging();
-            context.declareVar("hdl",
+            context.declareVar("model",
                     new ElementAttributes()
                             .set(new Key<>("frequency", 10), f * 1000));
             Parser p = new Parser(content);

src/test/java/de/neemann/digital/toolchain/ConfigurationTest.java

@@ -76,7 +76,7 @@ public class ConfigurationTest extends TestCase {
                 "            <content>deal with &lt;?=path?&gt;</content>\n" +
                 "        </file>\n" +
                 "        <file name=\"file2\" overwrite=\"true\" filter=\"true\">\n" +
-                "            <content>deal with &lt;?=path?&gt;, Bits: &lt;?=hdl.ports[0].bits?&gt; (&lt;?=hdl.ports[0].name?&gt;)</content>\n" +
+                "            <content>deal with &lt;?=path?&gt;, Bits: &lt;?=model.ports[0].bits?&gt; (&lt;?=model.ports[0].name?&gt;)</content>\n" +
                 "        </file>\n" +
                 "        <file name=\"&lt;?=shortname?&gt;.z\" overwrite=\"true\" filter=\"false\">\n" +
                 "            <content>test</content>\n" +