Added another 2 word fragments. Added compiler commandline option to show fragment -fragment <signature>. Closes #145

src/main/fragment/pwsc1_derefidx_vbuyy=pwsc1_derefidx_vbuyy_minus_vbuaa.asm

@@ -0,0 +1,8 @@
+sta $ff
+sec
+lda {c1},y
+sbc $ff
+sta {c1},y
+lda {c1}+1,y
+sbc #0
+sta {c1},y

src/main/fragment/pwsc1_derefidx_vbuyy=pwsc1_derefidx_vbuyy_minus_vbuxx.asm

@@ -0,0 +1,8 @@
+stx $ff
+sec
+lda {c1},y
+sbc $ff
+sta {c1},y
+lda {c1}+1,y
+sbc #0
+sta {c1},y

src/main/java/dk/camelot64/kickc/KickC.java

@@ -1,6 +1,8 @@
 package dk.camelot64.kickc;
 
+import dk.camelot64.kickc.fragment.AsmFragmentTemplate;
 import dk.camelot64.kickc.fragment.AsmFragmentTemplateSynthesizer;
+import dk.camelot64.kickc.fragment.AsmFragmentTemplateUsages;
 import dk.camelot64.kickc.model.CompileError;
 import dk.camelot64.kickc.model.Program;
 import kickass.KickAssembler;
@@ -8,6 +10,7 @@ import picocli.CommandLine;
 
 import java.io.*;
 import java.nio.file.*;
+import java.util.Collection;
 import java.util.List;
 import java.util.concurrent.Callable;
 
@@ -27,7 +30,7 @@ import java.util.concurrent.Callable;
 )
 public class KickC implements Callable<Void> {
 
-   @CommandLine.Parameters(index = "0", description = "The KickC source file to compile.")
+   @CommandLine.Parameters(index = "0", arity="0..1", description = "The KickC source file to compile.")
    private Path kcFile = null;
 
    @CommandLine.Option(names = {"-I", "-libdir" }, description = "Path to a library folder, where the compiler looks for included files. This option can be repeated to add multiple library folders.")
@@ -87,6 +90,9 @@ public class KickC implements Callable<Void> {
    @CommandLine.Option(names = {"-vasmoptimize" }, description = "Verbosity Option. Assembler optimization.")
    private boolean verboseAsmOptimize = false;
 
+   @CommandLine.Option(names = {"-fragment" }, description = "Print the ASM code for a named fragment. The fragment is loaded/synthesized and the ASM variations are written to the output.")
+   private String fragment = null;
+
    public static void main(String[] args) {
       CommandLine.call(new KickC(), args);
    }
@@ -111,6 +117,17 @@ public class KickC implements Callable<Void> {
          AsmFragmentTemplateSynthesizer.initialize("fragment/");
       }
 
+      if(fragment!=null) {
+         compiler.getLog().setSysOut(true);
+         Collection<AsmFragmentTemplate> fragmentTemplates = AsmFragmentTemplateSynthesizer.getFragmentTemplates(fragment, compiler.getLog());
+         for(AsmFragmentTemplate fragmentTemplate : fragmentTemplates) {
+            AsmFragmentTemplateUsages.logTemplate(compiler.getLog(), fragmentTemplate, "");
+         }
+         compiler.getLog().setSysOut(false);
+      }
+
+      if(kcFile!=null) {
+
          String fileBaseName = getFileBaseName(kcFile);
 
          Path kcFileDir = kcFile.getParent();
@@ -228,6 +245,8 @@ public class KickC implements Callable<Void> {
             process.waitFor();
          }
 
+      }
+
       return null;
    }
 

src/main/java/dk/camelot64/kickc/fragment/AsmFragmentTemplateUsages.java

@@ -179,13 +179,17 @@ public class AsmFragmentTemplateUsages {
          log.append(String.format("%8d", usage) + " " + template.getSignature()+" - templates: " + bestTemplates.size());
          if(logBody) {
             for(AsmFragmentTemplate bestTemplate : bestTemplates) {
-               log.append("          " + (bestTemplate.isFile() ? "*" : "") + bestTemplate.getName() + " - clobber:" + bestTemplate.getClobber().toString() + " cycles:" + bestTemplate.getCycles());
-               log.append("            " + bestTemplate.getBody().replace("\n", "\n            "));
+               logTemplate(log, bestTemplate, "      ");
             }
 
          }
       }
    }
 
+   public static void logTemplate(CompileLog log, AsmFragmentTemplate template, String indent) {
+      log.append(indent + (template.isFile() ? "*" : "") + template.getName() + " - clobber:" + template.getClobber().toString() + " cycles:" + template.getCycles());
+      log.append(indent+ "  " + template.getBody().replace("\n", "\n"+indent+"  "));
+   }
+
 
 }

src/test/java/dk/camelot64/kickc/test/TestFragments.java

@@ -147,6 +147,7 @@ public class TestFragments {
 
    /**
     * Test that a specific fragment can be succesfully loaded/synthesized
+    *
     * @param signature The fragment signature
     */
    private void testFragmentExists(String signature) {
@@ -156,8 +157,12 @@ public class TestFragments {
       log.setVerboseFragmentLog(true);
       List<AsmFragmentTemplate> templates =
             new ArrayList<>(AsmFragmentTemplateSynthesizer.getFragmentTemplates(signature, log));
-      if(templates.size()==0) {
-         System.out.println(log.toString());
+      if(templates.size() > 0) {
+         log.append("");
+         for(AsmFragmentTemplate template : templates) {
+            AsmFragmentTemplateUsages.logTemplate(log, template, "");
+         }
+         log.append("");
       }
       assertTrue("Fragment cannot be synthesized " + signature, templates.size() > 0);
    }