Fixed links and version number.

README.md

@@ -1,4 +1,4 @@
-# MC68000 Assembly Language Plugin [![Build Status](https://app.travis-ci.com/chrisly42/mc68000-asm-plugin.svg?branch=master)](https://app.travis-ci.com/chrisly42/mc68000-asm-plugin)
+# MC68000 Assembly Language Plugin
 
 _MC68000 Assembly Language Plugin_ is plugin for Jetbrains IDEs (CLion, IntelliJ, etc.).
 
@@ -133,6 +133,7 @@ If the current statement has no valid syntax, the instruction details of all mat
 - Switching the spaces option usually needs the caches to be invalidated. Find Usages word scanner always uses default settings, as it is not configurable per
   project :-/
 - Unit Test coverage is not as good as it could be (ahem).
+- Code flow sometimes outputs "uhm?"
 - Missing but planned features:
     - Macro evaluation on invocation
     - Folding
@@ -149,9 +150,10 @@ to highlight the same address and data registers while editing (see new `View ->
 
 ## Development notice
 
-This plugin has been written in Kotlin 1.5 using Grammar-Kit.
+This plugin has been written in Kotlin 1.9 using Grammar-Kit.
 
-It is probably the only plugin (besides [Cajon](https://github.com/chrisly42/cajon-plugin) from the same author) that uses JUnit 5 Jupiter for unit testing so
+It is probably the only plugin (besides [Cajon](https://git.platon42.de/chrisly42/cajon-plugin) from the same author) that uses JUnit 5 Jupiter for unit testing
+so
 far (or at least the only one I'm aware of ;) ). The IntelliJ framework actually uses the JUnit 3 TestCase for plugin testing, and it took me quite a while to
 make it work with JUnit 5. Feel free to use the code (in package ```de.platon42.intellij.jupiter```) for your projects (with attribution).
 
@@ -164,6 +166,19 @@ are appreciated. It really is keeping me motivated to continue development.
 
 ## Changelog
 
+### V0.10 (20-Feb-24)
+
+- Decided to release some features that have been sitting on my harddrive for almost two years, but never got released,
+  because I was unable to get that damn formatter working in a way that was acceptable (the API and the docs are easily one
+  the worst abominations I've come across).
+- Maintenance. Updated all dependencies to the latest versions.
+- New: Added semantic highlighting. Currently available for data and address registers and local labels.
+- Bugfix: addq/subq for address register stated it would affect the condition codes, which it in fact doesn't.
+- New: Added simple custom navigation bar.
+- New: Added folding support for functions and macro definitions.
+- New: Added assembler directives to code completion (only lower-case except for other directives like IF
+  and MACRO, which are only suggested for upper-case).
+
 ### V0.9 (16-Aug-22)
 
 - Maintenance. Updated all dependencies to the latest versions.

build.gradle

@@ -1,15 +1,14 @@
 plugins {
     id 'java'
-    id 'org.jetbrains.intellij' version '1.8.0'
+    id 'org.jetbrains.intellij' version '1.17.1'
-    id 'org.jetbrains.kotlin.jvm' version '1.7.10'
+    id 'org.jetbrains.kotlin.jvm' version '1.9.22'
     id 'jacoco'
-    id 'com.github.kt3k.coveralls' version '2.12.0'
 }
 
 group = 'de.platon42'
-version = '0.9'
+version = '0.10'
-sourceCompatibility = "1.8"
+sourceCompatibility = 17
-targetCompatibility = "1.8"
+targetCompatibility = 17
 
 repositories {
     mavenCentral()
@@ -22,53 +21,44 @@ repositories {
 
 dependencies {
     implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8'
-    testImplementation 'org.assertj:assertj-core:3.23.1'
+    testImplementation 'org.assertj:assertj-core:3.25.3'
-    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.9.0'
+    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.10.2'
-    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.9.0'
+    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.10.2'
     testImplementation "org.jetbrains.kotlin:kotlin-test"
     testImplementation "org.jetbrains.kotlin:kotlin-reflect"
-    testImplementation 'org.junit.platform:junit-platform-launcher:1.9.0'
+    testImplementation 'org.junit.platform:junit-platform-launcher:1.10.2'
 //    testImplementation "org.jetbrains.kotlin:kotlin-test-junit"
 }
 
-compileKotlin {
-    kotlinOptions {
-        jvmTarget = "1.8"
-        freeCompilerArgs += "-Xjvm-default=all"
-    }
-}
-
-compileTestKotlin {
-    kotlinOptions.jvmTarget = "1.8"
-}
-
 intellij {
-    setVersion("2022.2") // LATEST-EAP-SNAPSHOT
+    setVersion("2022.3") // LATEST-EAP-SNAPSHOT
     setUpdateSinceUntilBuild(false)
 //    setPlugins(["com.intellij.java"])
 }
 
 runPluginVerifier {
-    ideVersions = ["IC-203.6682.168", "IC-222.3345.118", // 2020.3 - 2022.2
+    ideVersions = ["IC-203.6682.168", "IC-233.14015.106", // 2020.3 - 2023.3
-                   "CL-203.8084.11", // 2020.3
+                   "CL-203.8084.11", "CL-233.14015.92"] // 2020.3 - 2023.3
-                   "CL-211.7628.27", // 2021.1
+
-                   "CL-212.5712.21", // 2021.2
-                   "CL-213.7172.20", // 2021.3.4
-                   "CL-221.5080.224", // 2022.1
-                   "CL-222.3345.126"] // 2022.2
     downloadDir = System.getProperty("user.home") + "/.gradle/caches/modules-2/files-2.1/com.jetbrains.intellij.idea/verifier"
 }
 
 patchPluginXml {
     setChangeNotes("""
-  <h4>V0.9 (16-Aug-22)</h4>
+  <h4>V0.10 (20-Feb-24)</h4>
     <ul>
+    <li>Decided to release some features that have been sitting on my harddrive for almost two years, but never got released,
+        because I was unable to get that damn formatter working in a way that was acceptable (the API and the docs are easily one
+        the worst abominations I've come across).
     <li>Maintenance. Updated all dependencies to the latest versions.
-    <li>Bugfix: Fixed condition code for asr/lsr/lsl, which is has a different behaviour for V flag than asl.
+    <li>New: Added semantic highlighting. Currently available for data and address registers and local labels.
-    <li>Bugfix: Fixed 'Unknown op size' exception when uppercase sizes were used.
+    <li>Bugfix: addq/subq for address register stated it would affect the condition codes, which it in fact doesn't.
-    <li>Bugfix: Refactoring was broken for newer IDE versions, at least for me, this now works again by unknown magic.
+    <li>New: Added simple custom navigation bar.
+    <li>New: Added folding support for functions and macro definitions.
+    <li>New: Added assembler directives to code completion (only lower-case except for other directives like IF
+        and MACRO, which are only suggested for upper-case).
     </ul>
-  <p>Full changelog available at <a href="https://github.com/chrisly42/mc68000-asm-plugin#changelog">Github project site</a>.</p>
+  <p>Full changelog available at <a href="https://git.platon42.de/chrisly42/mc68000-asm-plugin#changelog">Gitea project site</a>.</p>
 """)
 }
 
@@ -84,10 +74,6 @@ test {
     }
 }
 
-tasks.coveralls {
-    dependsOn jacocoTestReport
-}
-
 jacoco {
     toolVersion = '0.8.8'
 }

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.5.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

plans.txt

@@ -0,0 +1,17 @@
+
+Formatting:
+- dc.w statements: Pressing return will automatically add dc.w in next line (plus tabs)
+
+Showing of used registers in selection
+
+Actions:
+- Replace constant by symbol (with suggestion)
+- Converting of hex values into decimal values and vice versa
+- convert new style to old style
+- convert old style to new style
+- simplify explicit mnemonics (e.g. movea)
+
+Marker:
+- go to source register setter
+- go to target register setter
+- Can we add "find declaration to go for registers"

src/main/gen/de/platon42/intellij/plugins/m68k/parser/M68kParser.java

@@ -649,22 +649,12 @@ public class M68kParser implements PsiParser, LightPsiParser {
     }
 
     /* ********************************************************** */
-    // AsmInstruction | MacroCall
+    // AsmInstruction | MacroCall | PreprocessorDirective
     static boolean Instruction(PsiBuilder b, int l) {
         if (!recursion_guard_(b, l, "Instruction")) return false;
-        if (!nextTokenIs(b, "", MACRO_INVOCATION, MNEMONIC)) return false;
         boolean r;
         r = AsmInstruction(b, l + 1);
         if (!r) r = MacroCall(b, l + 1);
-        return r;
-    }
-
-    /* ********************************************************** */
-    // Instruction|PreprocessorDirective
-    static boolean InstructionOnly(PsiBuilder b, int l) {
-        if (!recursion_guard_(b, l, "InstructionOnly")) return false;
-        boolean r;
-        r = Instruction(b, l + 1);
         if (!r) r = PreprocessorDirective(b, l + 1);
         return r;
     }
@@ -681,13 +671,13 @@ public class M68kParser implements PsiParser, LightPsiParser {
     }
 
     /* ********************************************************** */
-    // LabelWithInstruction | LabelOnly | InstructionOnly
+    // LabelWithInstruction | LabelOnly | Instruction
     static boolean LabelInsts(PsiBuilder b, int l) {
         if (!recursion_guard_(b, l, "LabelInsts")) return false;
         boolean r;
         r = LabelWithInstruction(b, l + 1);
         if (!r) r = LabelOnly(b, l + 1);
-        if (!r) r = InstructionOnly(b, l + 1);
+        if (!r) r = Instruction(b, l + 1);
         return r;
     }
 
@@ -698,27 +688,18 @@ public class M68kParser implements PsiParser, LightPsiParser {
     }
 
     /* ********************************************************** */
-    // Label (Instruction|PreprocessorDirective)
+    // Label Instruction
     static boolean LabelWithInstruction(PsiBuilder b, int l) {
         if (!recursion_guard_(b, l, "LabelWithInstruction")) return false;
         if (!nextTokenIs(b, "", GLOBAL_LABEL_DEF, LOCAL_LABEL_DEF)) return false;
         boolean r;
         Marker m = enter_section_(b);
         r = Label(b, l + 1);
-        r = r && LabelWithInstruction_1(b, l + 1);
+        r = r && Instruction(b, l + 1);
         exit_section_(b, m, null, r);
         return r;
     }
 
-    // Instruction|PreprocessorDirective
-    private static boolean LabelWithInstruction_1(PsiBuilder b, int l) {
-        if (!recursion_guard_(b, l, "LabelWithInstruction_1")) return false;
-        boolean r;
-        r = Instruction(b, l + 1);
-        if (!r) r = PreprocessorDirective(b, l + 1);
-        return r;
-    }
-
     /* ********************************************************** */
     // LOCAL_LABEL_DEF COLON?
     public static boolean LocalLabel(PsiBuilder b, int l) {

src/main/java/de/platon42/intellij/plugins/m68k/M68kFileElementType.kt

@@ -10,7 +10,7 @@ class M68kFileElementType private constructor() : ILightStubFileElementType<PsiF
         @JvmField
         val INSTANCE = M68kFileElementType()
 
-        const val STUB_VERSION = 7
+        const val STUB_VERSION = 8
         const val STUB_EXTERNAL_ID_PREFIX = "MC68000."
         const val EXTERNAL_ID = STUB_EXTERNAL_ID_PREFIX + "FILE"
     }

src/main/java/de/platon42/intellij/plugins/m68k/asm/AssemblerDirectives.kt

@@ -19,7 +19,9 @@ object AssemblerDirectives {
         "align", "even", "odd", "cnop", "long", "dphrase", "phrase", "qphrase",
 
         "cargs", "comm", "comment",
-        "rsset", "clrfo", "clrso", "setfo", "setso"
+        "rsset", "clrfo", "clrso", "setfo", "setso",
+
+        "rsreset", "rs.b", "rs.w", "rs.l"
     )
 
     val plainDirectives: Set<String> = setOf(

src/main/java/de/platon42/intellij/plugins/m68k/asm/M68kDirectiveCompletionContributor.kt

@@ -0,0 +1,27 @@
+package de.platon42.intellij.plugins.m68k.asm
+
+import com.intellij.codeInsight.completion.*
+import com.intellij.codeInsight.lookup.LookupElementBuilder
+import com.intellij.patterns.PlatformPatterns
+import com.intellij.util.ProcessingContext
+import de.platon42.intellij.plugins.m68k.M68kIcons
+import de.platon42.intellij.plugins.m68k.psi.M68kTypes
+
+class M68kDirectiveCompletionContributor : CompletionContributor() {
+
+    companion object {
+        val DIRECTIVES =
+            listOf(AssemblerDirectives.dataDirectives, AssemblerDirectives.plainDirectives, AssemblerDirectives.otherDirectives.map(String::uppercase))
+                .flatten()
+                .toSortedSet()
+                .map { PrioritizedLookupElement.withPriority(LookupElementBuilder.create(it).withIcon(M68kIcons.MNEMONIC), 1.5) }
+    }
+
+    init {
+        extend(CompletionType.BASIC, PlatformPatterns.psiElement(M68kTypes.MACRO_INVOCATION), object : CompletionProvider<CompletionParameters>() {
+            override fun addCompletions(parameters: CompletionParameters, context: ProcessingContext, resultSet: CompletionResultSet) {
+                resultSet.addAllElements(DIRECTIVES)
+            }
+        })
+    }
+}

src/main/java/de/platon42/intellij/plugins/m68k/asm/M68kIsa.kt

@@ -294,7 +294,7 @@ object M68kIsa {
         AllowedAdrMode(
             setOf(AddressMode.IMMEDIATE_DATA), ALL_EXCEPT_AREG_IMMEDIATE_AND_PC_REL, modInfo = RWM_MODIFY_OP2_OPSIZE, affectedCc = cc("C****")
         ),
-        AllowedAdrMode(setOf(AddressMode.IMMEDIATE_DATA), AREG_ONLY, size = OP_SIZE_WL, modInfo = RWM_MODIFY_OP2_L, affectedCc = cc("C****"))
+        AllowedAdrMode(setOf(AddressMode.IMMEDIATE_DATA), AREG_ONLY, size = OP_SIZE_WL, modInfo = RWM_MODIFY_OP2_L)
     )
 
     private val ADDX_SUBX_MODES = listOf(

src/main/java/de/platon42/intellij/plugins/m68k/folding/M68kFoldingBuilder.kt

@@ -0,0 +1,67 @@
+package de.platon42.intellij.plugins.m68k.folding
+
+import com.intellij.lang.ASTNode
+import com.intellij.lang.folding.FoldingBuilderEx
+import com.intellij.lang.folding.FoldingDescriptor
+import com.intellij.openapi.editor.Document
+import com.intellij.openapi.project.DumbAware
+import com.intellij.psi.PsiElement
+import com.intellij.psi.util.PsiTreeUtil
+import com.intellij.refactoring.suggested.endOffset
+import com.intellij.refactoring.suggested.startOffset
+import de.platon42.intellij.plugins.m68k.psi.M68kFile
+import de.platon42.intellij.plugins.m68k.psi.M68kMacroDefinition
+import de.platon42.intellij.plugins.m68k.psi.M68kStatement
+import de.platon42.intellij.plugins.m68k.psi.utils.M68kPsiWalkUtil.getBeginningOfRelatedComment
+import de.platon42.intellij.plugins.m68k.psi.utils.M68kPsiWalkUtil.isSignificantLine
+
+class M68kFoldingBuilder : FoldingBuilderEx(), DumbAware {
+
+    override fun buildFoldRegions(root: PsiElement, document: Document, quick: Boolean): Array<FoldingDescriptor> {
+        if (root !is M68kFile) return FoldingDescriptor.EMPTY
+
+        val descriptors = ArrayList<FoldingDescriptor>()
+        var lineElement = root.firstChild
+        var foldingOpen = false
+        var foldingStart: PsiElement? = null
+        var foldingName: String? = null
+        var lastStatement = lineElement as? M68kStatement
+        while (lineElement != null) {
+            if (lineElement is M68kMacroDefinition) {
+                val fd = FoldingDescriptor(lineElement, lineElement.startOffset, lineElement.endOffset, null, "[[[ MACRO " + lineElement.name!! + " ]]]")
+                descriptors.add(fd)
+            }
+            if (lineElement is M68kStatement) {
+                val label = lineElement.globalLabel
+                if (label != null) {
+                    foldingOpen = true
+                    foldingStart = getBeginningOfRelatedComment(lineElement)
+                    foldingName = "[[[ ${label.name} ]]]"
+                }
+                lastStatement = lineElement
+            }
+            lineElement = PsiTreeUtil.skipWhitespacesAndCommentsForward(lineElement)
+            if (foldingOpen) {
+                val stopIt = (lineElement == null) || isSignificantLine(lineElement)
+                if (stopIt) {
+                    val fd = FoldingDescriptor(
+                        foldingStart!!.parent!!,
+                        foldingStart.startOffsetInParent, lastStatement!!.textRangeInParent.endOffset,
+                        null, foldingName!!
+                    )
+                    descriptors.add(fd)
+                    foldingOpen = false
+                }
+            }
+        }
+        return descriptors.toArray(FoldingDescriptor.EMPTY)
+    }
+
+    override fun getPlaceholderText(node: ASTNode): String? {
+        return "..."
+    }
+
+    override fun isCollapsedByDefault(node: ASTNode): Boolean {
+        return false
+    }
+}

src/main/java/de/platon42/intellij/plugins/m68k/formatter/M68kAsmAssignmentBlock.kt

@@ -0,0 +1,23 @@
+package de.platon42.intellij.plugins.m68k.formatter
+
+import com.intellij.formatting.Alignment
+import com.intellij.formatting.Block
+import com.intellij.formatting.Spacing
+import com.intellij.formatting.Wrap
+import com.intellij.lang.ASTNode
+import com.intellij.psi.codeStyle.CodeStyleSettings
+import com.intellij.psi.formatter.common.AbstractBlock
+
+class M68kAsmAssignmentBlock(
+    node: ASTNode, wrap: Wrap?, alignment: Alignment?,
+    private val codeStyleSettings: CodeStyleSettings
+) : AbstractBlock(node, wrap, alignment) {
+
+    override fun getSpacing(child1: Block?, child2: Block): Spacing? {
+        return Spacing.getReadOnlySpacing()
+    }
+
+    override fun isLeaf() = true
+
+    override fun buildChildren() = emptyList<Block>()
+}

src/main/java/de/platon42/intellij/plugins/m68k/formatter/M68kAsmBlock.kt

@@ -0,0 +1,62 @@
+package de.platon42.intellij.plugins.m68k.formatter
+
+import com.intellij.formatting.Alignment
+import com.intellij.formatting.Block
+import com.intellij.formatting.Spacing
+import com.intellij.formatting.Wrap
+import com.intellij.lang.ASTNode
+import com.intellij.psi.TokenType
+import com.intellij.psi.codeStyle.CodeStyleSettings
+import com.intellij.psi.formatter.common.AbstractBlock
+import de.platon42.intellij.plugins.m68k.psi.M68kTypes
+
+class M68kAsmBlock(
+    node: ASTNode, wrap: Wrap?, alignment: Alignment?,
+    val column: Int,
+    private val codeStyleSettings: CodeStyleSettings
+) : AbstractBlock(node, wrap, alignment) {
+
+    override fun getSpacing(child1: Block?, child2: Block): Spacing? {
+        if (child1 is M68kAsmBlock && child2 is M68kAsmBlock) {
+            val columnDiff = child2.column - child1.column
+            if (columnDiff > 0) {
+                var minSpaces = columnDiff * codeStyleSettings.indentOptions.INDENT_SIZE - child1.node.textLength
+                while (minSpaces < 1) {
+                    minSpaces += codeStyleSettings.indentOptions.INDENT_SIZE
+                }
+                return Spacing.createSpacing(minSpaces, minSpaces, 0, false, 0)
+            }
+        }
+        return null
+    }
+
+    override fun isLeaf() = (node.firstChildNode == null)
+
+    override fun buildChildren(): List<Block> {
+        val subBlocks = ArrayList<Block>()
+        if (myNode.elementType == M68kTypes.ASM_OP) {
+            return subBlocks
+        }
+
+        var child = myNode.firstChildNode
+        var newColumn = column
+        while (child != null) {
+            if (child.elementType != TokenType.WHITE_SPACE) {
+                subBlocks.add(
+                    M68kAsmBlock(
+                        child,
+                        null,
+                        null,
+                        newColumn,
+                        codeStyleSettings
+                    )
+                )
+                if (child.elementType == M68kTypes.ASM_OP) {
+                    newColumn += 2
+                }
+            }
+            child = child.treeNext
+        }
+        return subBlocks
+    }
+}

src/main/java/de/platon42/intellij/plugins/m68k/formatter/M68kAsmCodeStyleSettings.kt

@@ -0,0 +1,7 @@
+package de.platon42.intellij.plugins.m68k.formatter
+
+import com.intellij.psi.codeStyle.CodeStyleSettings
+import com.intellij.psi.codeStyle.CustomCodeStyleSettings
+
+class M68kAsmCodeStyleSettings(container: CodeStyleSettings) : CustomCodeStyleSettings("MC68000AsmCodeStyleSettings", container) {
+}

src/main/java/de/platon42/intellij/plugins/m68k/formatter/M68kAsmCodeStyleSettingsProvider.kt

@@ -0,0 +1,31 @@
+package de.platon42.intellij.plugins.m68k.formatter
+
+import com.intellij.application.options.CodeStyleAbstractConfigurable
+import com.intellij.application.options.CodeStyleAbstractPanel
+import com.intellij.application.options.TabbedLanguageCodeStylePanel
+import com.intellij.psi.codeStyle.CodeStyleConfigurable
+import com.intellij.psi.codeStyle.CodeStyleSettings
+import com.intellij.psi.codeStyle.CodeStyleSettingsProvider
+import com.intellij.psi.codeStyle.CustomCodeStyleSettings
+import de.platon42.intellij.plugins.m68k.MC68000Language
+
+
+class M68kAsmCodeStyleSettingsProvider : CodeStyleSettingsProvider() {
+
+    override fun createCustomSettings(settings: CodeStyleSettings): CustomCodeStyleSettings {
+        return M68kAsmCodeStyleSettings(settings)
+    }
+
+    override fun createConfigurable(settings: CodeStyleSettings, modelSettings: CodeStyleSettings): CodeStyleConfigurable {
+        return object : CodeStyleAbstractConfigurable(settings, modelSettings, configurableDisplayName) {
+            override fun createPanel(settings: CodeStyleSettings): CodeStyleAbstractPanel {
+                return M68kAsmCodeStyleMainPanel(currentSettings, settings)
+            }
+        }
+    }
+
+    override fun getConfigurableDisplayName() = "M68k"
+
+    private class M68kAsmCodeStyleMainPanel(currentSettings: CodeStyleSettings, settings: CodeStyleSettings) :
+        TabbedLanguageCodeStylePanel(MC68000Language.INSTANCE, currentSettings, settings)
+}

src/main/java/de/platon42/intellij/plugins/m68k/formatter/M68kAsmCommentBlock.kt

@@ -0,0 +1,21 @@
+package de.platon42.intellij.plugins.m68k.formatter
+
+import com.intellij.formatting.Block
+import com.intellij.formatting.Spacing
+import com.intellij.lang.ASTNode
+import com.intellij.psi.codeStyle.CodeStyleSettings
+import com.intellij.psi.formatter.common.AbstractBlock
+
+class M68kAsmCommentBlock(
+    node: ASTNode,
+    private val codeStyleSettings: CodeStyleSettings
+) : AbstractBlock(node, null, null) {
+
+    override fun getSpacing(child1: Block?, child2: Block): Spacing? {
+        return Spacing.getReadOnlySpacing()
+    }
+
+    override fun isLeaf() = true
+
+    override fun buildChildren() = emptyList<Block>()
+}

src/main/java/de/platon42/intellij/plugins/m68k/formatter/M68kAsmEolBlock.kt

@@ -0,0 +1,14 @@
+package de.platon42.intellij.plugins.m68k.formatter
+
+import com.intellij.formatting.Block
+import com.intellij.lang.ASTNode
+import com.intellij.psi.formatter.common.AbstractBlock
+
+class M68kAsmEolBlock(node: ASTNode) : AbstractBlock(node, null, null) {
+
+    override fun getSpacing(child1: Block?, child2: Block) = null
+
+    override fun isLeaf() = true
+
+    override fun buildChildren() = emptyList<Block>()
+}

src/main/java/de/platon42/intellij/plugins/m68k/formatter/M68kAsmFormattingModelBuilder.kt

@@ -0,0 +1,19 @@
+package de.platon42.intellij.plugins.m68k.formatter
+
+import com.intellij.formatting.FormattingContext
+import com.intellij.formatting.FormattingModel
+import com.intellij.formatting.FormattingModelBuilder
+import com.intellij.formatting.FormattingModelProvider
+
+class M68kAsmFormattingModelBuilder : FormattingModelBuilder {
+
+    override fun createModel(formattingContext: FormattingContext): FormattingModel {
+        val codeStyleSettings = formattingContext.codeStyleSettings
+
+        return FormattingModelProvider.createFormattingModelForPsiFile(
+            formattingContext.containingFile,
+            M68kAsmRootBlock(formattingContext.node, codeStyleSettings),
+            codeStyleSettings
+        )
+    }
+}

src/main/java/de/platon42/intellij/plugins/m68k/formatter/M68kAsmLabelBlock.kt

@@ -0,0 +1,23 @@
+package de.platon42.intellij.plugins.m68k.formatter
+
+import com.intellij.formatting.Alignment
+import com.intellij.formatting.Block
+import com.intellij.formatting.Spacing
+import com.intellij.formatting.Wrap
+import com.intellij.lang.ASTNode
+import com.intellij.psi.codeStyle.CodeStyleSettings
+import com.intellij.psi.formatter.common.AbstractBlock
+
+class M68kAsmLabelBlock(
+    node: ASTNode, wrap: Wrap?, alignment: Alignment?,
+    private val codeStyleSettings: CodeStyleSettings
+) : AbstractBlock(node, wrap, alignment) {
+
+    override fun getSpacing(child1: Block?, child2: Block): Spacing? {
+        return Spacing.getReadOnlySpacing()
+    }
+
+    override fun isLeaf() = true
+
+    override fun buildChildren() = emptyList<Block>()
+}

src/main/java/de/platon42/intellij/plugins/m68k/formatter/M68kAsmMacroDefBlock.kt

@@ -0,0 +1,21 @@
+package de.platon42.intellij.plugins.m68k.formatter
+
+import com.intellij.formatting.Block
+import com.intellij.formatting.Spacing
+import com.intellij.lang.ASTNode
+import com.intellij.psi.codeStyle.CodeStyleSettings
+import com.intellij.psi.formatter.common.AbstractBlock
+
+class M68kAsmMacroDefBlock(
+    node: ASTNode,
+    private val codeStyleSettings: CodeStyleSettings
+) : AbstractBlock(node, null, null) {
+
+    override fun getSpacing(child1: Block?, child2: Block): Spacing? {
+        return Spacing.getReadOnlySpacing()
+    }
+
+    override fun isLeaf() = true
+
+    override fun buildChildren() = emptyList<Block>()
+}

src/main/java/de/platon42/intellij/plugins/m68k/formatter/M68kAsmRootBlock.kt

@@ -0,0 +1,70 @@
+package de.platon42.intellij.plugins.m68k.formatter
+
+import com.intellij.formatting.Block
+import com.intellij.formatting.Indent
+import com.intellij.formatting.Spacing
+import com.intellij.lang.ASTNode
+import com.intellij.psi.PsiComment
+import com.intellij.psi.TokenType
+import com.intellij.psi.codeStyle.CodeStyleSettings
+import com.intellij.psi.formatter.common.AbstractBlock
+import de.platon42.intellij.plugins.m68k.psi.M68kMacroDefinition
+import de.platon42.intellij.plugins.m68k.psi.M68kStatement
+import de.platon42.intellij.plugins.m68k.psi.M68kTypes
+
+class M68kAsmRootBlock(node: ASTNode, private val codeStyleSettings: CodeStyleSettings) : AbstractBlock(node, null, null) {
+
+    override fun getIndent(): Indent? {
+        return Indent.getAbsoluteNoneIndent()
+    }
+
+    override fun getSpacing(child1: Block?, child2: Block): Spacing? {
+        if (child2 is M68kAsmEolBlock) {
+            return Spacing.createSpacing(0, 0, 0, false, 0)
+            //return null
+        }
+        if (child2 is M68kAsmMacroDefBlock) {
+            return child2.getSpacing(child1, child2)
+        }
+        if (child2 is M68kAsmCommentBlock) {
+            if (child1 is M68kAsmStatementBlock) {
+                val indentSize = codeStyleSettings.indentOptions.INDENT_SIZE
+                val oddIdent = indentSize - (child1.node.textLength % indentSize)
+                return Spacing.createSpacing(oddIdent, Integer.MAX_VALUE, 0, false, 0)
+            } else {
+                return Spacing.getReadOnlySpacing()
+            }
+        }
+        if (child2.subBlocks.isNotEmpty()) {
+            return child2.getSpacing(child1, child2.subBlocks.first())
+        }
+        return null
+    }
+
+    override fun isLeaf(): Boolean {
+        return false
+    }
+
+    override fun buildChildren(): List<Block> {
+        val subBlocks = ArrayList<Block>()
+        var child = myNode.firstChildNode
+        while (child != null) {
+            if (child.elementType == M68kTypes.EOL) {
+                subBlocks.add(M68kAsmEolBlock(child))
+            } else if (child.elementType != TokenType.WHITE_SPACE) {
+                if (child.psi is M68kStatement) {
+                    subBlocks.add(M68kAsmStatementBlock(child, codeStyleSettings))
+                } else if (child.psi is M68kMacroDefinition) {
+                    subBlocks.add(M68kAsmMacroDefBlock(child, codeStyleSettings))
+                } else if (child.psi is PsiComment) {
+                    subBlocks.add(M68kAsmCommentBlock(child, codeStyleSettings))
+                } else {
+                    subBlocks.add(M68kAsmBlock(child, null, null, 0, codeStyleSettings))
+                }
+            }
+
+            child = child.treeNext
+        }
+        return subBlocks
+    }
+}

src/main/java/de/platon42/intellij/plugins/m68k/formatter/M68kAsmStatementBlock.kt

@@ -0,0 +1,74 @@
+package de.platon42.intellij.plugins.m68k.formatter
+
+import com.intellij.formatting.Block
+import com.intellij.formatting.Indent
+import com.intellij.formatting.Spacing
+import com.intellij.lang.ASTNode
+import com.intellij.psi.TokenType
+import com.intellij.psi.codeStyle.CodeStyleSettings
+import com.intellij.psi.formatter.common.AbstractBlock
+import de.platon42.intellij.plugins.m68k.psi.*
+
+class M68kAsmStatementBlock(node: ASTNode, private val codeStyleSettings: CodeStyleSettings) :
+    AbstractBlock(node, null, null) {
+
+    override fun getIndent(): Indent? {
+        val statement = myNode.psi as M68kStatement
+        if (((statement.asmInstruction != null) || (statement.asmInstruction != null) || (statement.preprocessorDirective != null)
+                    || (statement.macroCall != null))
+            && ((statement.localLabel == null) && (statement.globalLabel == null))
+        ) {
+            return null
+        } else {
+            return Indent.getAbsoluteNoneIndent()
+        }
+    }
+
+    override fun getSpacing(child1: Block?, child2: Block): Spacing? {
+        if (child2 is M68kAsmBlock) {
+            val indentSize = codeStyleSettings.indentOptions.INDENT_SIZE * child2.column
+            if (child1 is M68kAsmEolBlock || child1 is M68kAsmCommentBlock) {
+                return Spacing.createSpacing(indentSize, indentSize, 0, true, 0)
+            }
+            if (child1 is M68kAsmLabelBlock) {
+                val spacesLeft = indentSize - child1.node.textLength
+                if (spacesLeft <= 0) {
+                    return Spacing.createSpacing(0, 0, 1, true, 0)
+                } else {
+                    return Spacing.createSpacing(spacesLeft, spacesLeft, 0, true, 0)
+                }
+            }
+            return Spacing.createSpacing(indentSize, indentSize, 0, true, 0)
+        }
+        if (child2 is M68kAsmLabelBlock || child2 is M68kAsmAssignmentBlock) {
+            return Spacing.createSpacing(0, 0, 0, true, 0)
+        }
+        return null
+    }
+
+    override fun isLeaf() = false
+
+    override fun buildChildren(): List<Block> {
+        val subBlocks = ArrayList<Block>()
+        var child = myNode.firstChildNode
+        while (child != null) {
+            if (child.elementType != TokenType.WHITE_SPACE) {
+                val element = child.psi
+                when (element) {
+                    is M68kAssignment -> subBlocks.add(M68kAsmAssignmentBlock(child, null, null, codeStyleSettings))
+
+                    is M68kAsmInstruction, is M68kPreprocessorDirective, is M68kMacroCall ->
+                        subBlocks.add(M68kAsmBlock(child, null, null, 2, codeStyleSettings))
+
+                    is M68kGlobalLabel, is M68kLocalLabel ->
+                        subBlocks.add(M68kAsmLabelBlock(child, null, null, codeStyleSettings))
+
+                    else -> subBlocks.add(M68kAsmBlock(child, null, null, 1, codeStyleSettings))
+                }
+            }
+
+            child = child.treeNext
+        }
+        return subBlocks
+    }
+}

src/main/java/de/platon42/intellij/plugins/m68k/formatter/M68kLanguageCodeStyleSettingsProvider.kt

@@ -0,0 +1,41 @@
+package de.platon42.intellij.plugins.m68k.formatter
+
+import com.intellij.psi.codeStyle.LanguageCodeStyleSettingsProvider
+import de.platon42.intellij.plugins.m68k.MC68000Language
+
+class M68kLanguageCodeStyleSettingsProvider : LanguageCodeStyleSettingsProvider() {
+    override fun getLanguage() = MC68000Language.INSTANCE
+
+    override fun getCodeSample(settingsType: SettingsType) = """; This is an example assembly language program
+PIC_HEIGHT = 256
+
+        include "../includes/hardware/custom.i"
+
+BLTHOGON MACRO                  ; macro definition
+        move.w	#DMAF_SETCLR|DMAF_BLITHOG,dmacon(a5) ; hog!
+        ENDM
+
+demo_init                       ; global label
+        tst.w   d1
+        beq.s   .skip
+        PUSHM   d0-d7/a0-a6     ; this is a macro call
+        lea     hello(pc),a1
+        lea     pd_ModViewTable(a4,d1.w),a0
+        moveq.l #0,d0
+        move.w  #PIC_HEIGHT-1,d7
+.loop   move.l  d0,(a0)+        ; local label
+        dbra    d7,.loop
+        POPM
+.skip   rts
+
+irq:    move.l  a0,-(sp)
+        move    usp,a0
+        move.l  a0,${'$'}400.w
+        move.l  (sp)+,a0
+        rte
+
+hello:  dc.b   'Hello World!',10,0
+        even
+        dc.w    *-hello         ; length of string
+"""
+}

src/main/java/de/platon42/intellij/plugins/m68k/m68k.bnf

@@ -136,11 +136,10 @@ SymbolDefinition ::= SYMBOLDEF {
 
 Assignment ::= SymbolDefinition COLON? (OP_ASSIGN|EQU) expr
 
-private LabelInsts ::= LabelWithInstruction | LabelOnly | InstructionOnly
+private LabelInsts ::= LabelWithInstruction | LabelOnly | Instruction
 
 private LabelOnly ::= Label
-private LabelWithInstruction ::= Label (Instruction|PreprocessorDirective)
+private LabelWithInstruction ::= Label Instruction
-private InstructionOnly ::= (Instruction|PreprocessorDirective)
 
 LocalLabel ::= LOCAL_LABEL_DEF COLON? {
     name = "local label"
@@ -199,7 +198,7 @@ MacroCall ::= MACRO_INVOCATION PlainOperands? {
 }
 
 AsmInstruction ::= AsmOp AsmOperands?
-private Instruction ::= AsmInstruction | MacroCall
+private Instruction ::= AsmInstruction | MacroCall | PreprocessorDirective
 //external Instruction ::= parseMacroCallOrAsmInstruction
 
 private AsmOperands ::= AddressingMode (SEPARATOR AddressingMode)?

src/main/java/de/platon42/intellij/plugins/m68k/navigation/M68kStructureAwareNavbar.kt

@@ -0,0 +1,75 @@
+package de.platon42.intellij.plugins.m68k.navigation
+
+import com.intellij.ide.navigationToolbar.AbstractNavBarModelExtension
+import com.intellij.ide.ui.UISettings
+import com.intellij.openapi.actionSystem.CommonDataKeys
+import com.intellij.openapi.actionSystem.DataContext
+import com.intellij.openapi.project.IndexNotReadyException
+import com.intellij.psi.PsiElement
+import com.intellij.psi.util.PsiTreeUtil
+import de.platon42.intellij.plugins.m68k.M68kIcons
+import de.platon42.intellij.plugins.m68k.MC68000Language
+import de.platon42.intellij.plugins.m68k.psi.*
+import de.platon42.intellij.plugins.m68k.psi.utils.M68kPsiWalkUtil.findStatementForElement
+import org.jetbrains.annotations.Nullable
+import javax.swing.Icon
+
+class M68kStructureAwareNavbar : AbstractNavBarModelExtension() {
+
+    override fun getLeafElement(dataContext: DataContext): PsiElement? {
+        if (UISettings.getInstance().showMembersInNavigationBar) {
+            val psiFile = CommonDataKeys.PSI_FILE.getData(dataContext)
+            val editor = CommonDataKeys.EDITOR.getData(dataContext)
+            if (psiFile == null || !psiFile.isValid || editor == null) return null
+            val psiElement = psiFile.findElementAt(editor.caretModel.offset)
+            if (isAcceptableLanguage(psiElement)) {
+                try {
+                    var statement = findStatementForElement(psiElement!!) ?: return null
+                    do {
+                        if (statement.localLabel != null) return statement.localLabel
+                        if (statement.globalLabel != null) return statement.globalLabel
+                        statement = PsiTreeUtil.getPrevSiblingOfType(statement, M68kStatement::class.java) ?: return null
+                    } while (true)
+                } catch (ignored: IndexNotReadyException) {
+                }
+            }
+        }
+        return null
+    }
+
+    private fun isAcceptableLanguage(psiElement: @Nullable PsiElement?) = psiElement?.language == MC68000Language.INSTANCE
+
+    override fun getPresentableText(obj: Any?): String? {
+        return when (obj) {
+            is M68kFile -> obj.name
+            is M68kGlobalLabel -> obj.name
+            is M68kLocalLabel -> obj.name
+            is M68kSymbolDefinition -> obj.name
+            is M68kMacroDefinition -> obj.macroNameDefinition.text
+            else -> null
+        }
+    }
+
+    override fun getParent(psiElement: PsiElement): PsiElement? {
+        if (!isAcceptableLanguage(psiElement)) return null
+        var statement = findStatementForElement(psiElement) ?: return null
+        if (statement.localLabel != null) {
+            do {
+                if (statement.globalLabel != null) return statement.globalLabel
+                statement = PsiTreeUtil.getPrevSiblingOfType(statement, M68kStatement::class.java) ?: return null
+            } while (true)
+        }
+        return psiElement.containingFile
+    }
+
+    override fun getIcon(obj: Any?): Icon? {
+        return when (obj) {
+            is M68kFile -> M68kIcons.FILE
+            is M68kGlobalLabel -> M68kIcons.GLOBAL_LABEL
+            is M68kLocalLabel -> M68kIcons.LOCAL_LABEL
+            is M68kSymbolDefinition -> M68kIcons.SYMBOL_DEF
+            is M68kMacroDefinition -> M68kIcons.MACRO_DEF
+            else -> null
+        }
+    }
+}

src/main/java/de/platon42/intellij/plugins/m68k/psi/utils/M68kPsiWalkUtil.kt

@@ -2,10 +2,13 @@ package de.platon42.intellij.plugins.m68k.psi.utils
 
 import com.intellij.psi.PsiComment
 import com.intellij.psi.PsiElement
+import com.intellij.psi.PsiWhiteSpace
 import com.intellij.psi.util.PsiTreeUtil
 import com.intellij.util.SmartList
 import com.intellij.util.containers.addIfNotNull
+import de.platon42.intellij.plugins.m68k.psi.M68kFile
 import de.platon42.intellij.plugins.m68k.psi.M68kMacroDefinition
+import de.platon42.intellij.plugins.m68k.psi.M68kStatement
 
 object M68kPsiWalkUtil {
 
@@ -28,4 +31,37 @@ object M68kPsiWalkUtil {
 
         return comments.reversed()
     }
+
+    fun getBeginningOfRelatedComment(lineElement: PsiElement): PsiElement {
+        // go back to catch comments that are not more than one empty line away
+        var relStart = lineElement
+        var prevLine = relStart.prevSibling ?: return lineElement
+        var eolCount = 2
+        do {
+            if (prevLine is PsiComment) {
+                relStart = prevLine
+                eolCount = 1
+            } else if (prevLine is PsiWhiteSpace) {
+                if (--eolCount < 0) break
+            } else {
+                break
+            }
+            prevLine = prevLine.prevSibling ?: break
+        } while (true)
+        return relStart
+    }
+
+    fun isSignificantLine(element: PsiElement) = when (element) {
+        is M68kStatement -> (element.assignment != null) || (element.globalLabel != null)
+        is M68kMacroDefinition -> true
+        else -> false
+    }
+
+    fun findStatementForElement(psiElement: PsiElement): M68kStatement? {
+        if (psiElement is M68kStatement) return psiElement
+        if (psiElement.parent is M68kFile) {
+            return PsiTreeUtil.getPrevSiblingOfType(psiElement, M68kStatement::class.java)
+        }
+        return PsiTreeUtil.getParentOfType(psiElement, M68kStatement::class.java);
+    }
 }

src/main/java/de/platon42/intellij/plugins/m68k/refs/M68kLocalLabelDefCompletionContributor.kt

@@ -32,7 +32,7 @@ class M68kLocalLabelDefCompletionContributor : CompletionContributor() {
                     }
                     referencedLocalLabels.removeAll(definedLocalLabels)
                     resultSet.addAllElements(
-                        if (parameters.originalPosition?.text == ".") {
+                        if (parameters.originalPosition?.text?.startsWith(".") == true) {
                             referencedLocalLabels.map { LookupElementBuilder.create(it.removePrefix(".")) }
                         } else {
                             referencedLocalLabels.map(LookupElementBuilder::create)

src/main/java/de/platon42/intellij/plugins/m68k/syntax/M68kColorSettingsPage.kt

@@ -1,11 +1,13 @@
 package de.platon42.intellij.plugins.m68k.syntax
 
+import com.intellij.codeHighlighting.RainbowHighlighter
 import com.intellij.openapi.editor.colors.TextAttributesKey
 import com.intellij.openapi.fileTypes.SyntaxHighlighter
 import com.intellij.openapi.options.colors.AttributesDescriptor
 import com.intellij.openapi.options.colors.ColorDescriptor
-import com.intellij.openapi.options.colors.ColorSettingsPage
+import com.intellij.openapi.options.colors.RainbowColorSettingsPage
 import de.platon42.intellij.plugins.m68k.M68kIcons.FILE
+import de.platon42.intellij.plugins.m68k.MC68000Language
 import de.platon42.intellij.plugins.m68k.syntax.M68kSyntaxHighlighter.Companion.AREG
 import de.platon42.intellij.plugins.m68k.syntax.M68kSyntaxHighlighter.Companion.BAD_CHARACTER
 import de.platon42.intellij.plugins.m68k.syntax.M68kSyntaxHighlighter.Companion.COLON
@@ -34,7 +36,9 @@ import de.platon42.intellij.plugins.m68k.syntax.M68kSyntaxHighlighter.Companion.
 import org.jetbrains.annotations.NonNls
 import javax.swing.Icon
 
-class M68kColorSettingsPage : ColorSettingsPage {
+class M68kColorSettingsPage : RainbowColorSettingsPage {
+
+    override fun getLanguage() = MC68000Language.INSTANCE
 
     override fun getIcon(): Icon {
         return FILE
@@ -49,6 +53,8 @@ class M68kColorSettingsPage : ColorSettingsPage {
         return """; This is an example assembly language program
 PIC_HEIGHT = 256
 
+* Semantic highlighting is available for registers and local labels
+
         include "../includes/hardware/custom.i"
 
 BLTHOGON MACRO                  ; macro definition
@@ -80,23 +86,21 @@ hello:  dc.b   'Hello World!',10,0
 """
     }
 
-    override fun getAdditionalHighlightingTagToDescriptorMap(): Map<String, TextAttributesKey>? {
+    override fun getAdditionalHighlightingTagToDescriptorMap(): Map<String, TextAttributesKey> {
-        return null
+        return RainbowHighlighter.createRainbowHLM()
     }
 
-    override fun getAttributeDescriptors(): Array<AttributesDescriptor> {
+    override fun isRainbowType(type: TextAttributesKey) = RAINBOW_TYPES.contains(type)
-        return DESCRIPTORS
-    }
 
-    override fun getColorDescriptors(): Array<ColorDescriptor> {
+    override fun getAttributeDescriptors() = DESCRIPTORS
-        return ColorDescriptor.EMPTY_ARRAY
-    }
 
-    override fun getDisplayName(): String {
+    override fun getColorDescriptors() = ColorDescriptor.EMPTY_ARRAY
-        return "M68k Assembly"
+
-    }
+    override fun getDisplayName() = "M68k Assembly"
 
     companion object {
+        private val RAINBOW_TYPES = setOf(AREG, DREG, LOCAL_LABEL)
+
         private val DESCRIPTORS = arrayOf(
             AttributesDescriptor("Global labels", GLOBAL_LABEL),
             AttributesDescriptor("Local labels", LOCAL_LABEL),

src/main/java/de/platon42/intellij/plugins/m68k/syntax/M68kRainbowVisitor.kt

@@ -0,0 +1,28 @@
+package de.platon42.intellij.plugins.m68k.syntax
+
+import com.intellij.codeInsight.daemon.RainbowVisitor
+import com.intellij.codeInsight.daemon.impl.HighlightVisitor
+import com.intellij.psi.PsiElement
+import com.intellij.psi.PsiFile
+import de.platon42.intellij.plugins.m68k.psi.M68kAddressRegister
+import de.platon42.intellij.plugins.m68k.psi.M68kDataRegister
+import de.platon42.intellij.plugins.m68k.psi.M68kFile
+import de.platon42.intellij.plugins.m68k.psi.M68kLocalLabel
+
+class M68kRainbowVisitor : RainbowVisitor() {
+
+    override fun suitableForFile(file: PsiFile): Boolean = file is M68kFile
+
+    override fun visit(element: PsiElement) {
+        when (element) {
+            is M68kAddressRegister -> addInfo(getInfo(element.containingFile, element, element.text, M68kSyntaxHighlighter.AREG))
+            is M68kDataRegister -> addInfo(getInfo(element.containingFile, element, element.text, M68kSyntaxHighlighter.DREG))
+//            is M68kGlobalLabel -> addInfo(getInfo(element.containingFile, element, element.text, M68kSyntaxHighlighter.GLOBAL_LABEL))
+            is M68kLocalLabel -> addInfo(getInfo(element.containingFile, element, element.text, M68kSyntaxHighlighter.LOCAL_LABEL))
+//            is M68kMacroCall -> addInfo(getInfo(element.containingFile, element.firstChild, element.macroName, M68kSyntaxHighlighter.MACRO_CALL))
+        }
+    }
+
+    override fun clone(): HighlightVisitor = M68kRainbowVisitor()
+
+}

src/main/resources/META-INF/plugin.xml

@@ -1,14 +1,14 @@
 <idea-plugin>
     <id>de.platon42.m68k</id>
     <name>MC68000 Assembly Language Support</name>
-    <vendor email="chrisly@platon42.de" url="https://github.com/chrisly42/mc68000-asm-plugin">Chris 'platon42' Hodges
+    <vendor email="chrisly@platon42.de" url="https://git.platon42.de/chrisly42/mc68000-asm-plugin">Chris 'platon42' Hodges
     </vendor>
 
     <description><![CDATA[
     MC68000 Assembly Language Plugin adds language support for Motorola 68000 (M68k) assembly language files (asm).
     It provides syntax highlighting and refactoring possibilities among other things.
     <p>
-    <a href="https://github.com/chrisly42/mc68000-asm-plugin/blob/main/README.md">Full documentation here...</a>
+    <a href="https://git.platon42.de/chrisly42/mc68000-asm-plugin/blob/main/README.md">Full documentation here...</a>
     ]]></description>
     <idea-version since-build="203.5981.166"/>
 
@@ -21,8 +21,17 @@
                                implementationClass="de.platon42.intellij.plugins.m68k.parser.M68kParserDefinition"/>
         <lang.syntaxHighlighterFactory language="MC68000"
                                        implementationClass="de.platon42.intellij.plugins.m68k.syntax.M68kSyntaxHighlighterFactory"/>
+        <lang.foldingBuilder language="MC68000"
+                             implementationClass="de.platon42.intellij.plugins.m68k.folding.M68kFoldingBuilder"/>
+        <!--lang.formatter language="MC68000"
+                        implementationClass="de.platon42.intellij.plugins.m68k.formatter.M68kAsmFormattingModelBuilder"/-->
+        <codeStyleSettingsProvider implementation="de.platon42.intellij.plugins.m68k.formatter.M68kAsmCodeStyleSettingsProvider"/>
+        <langCodeStyleSettingsProvider implementation="de.platon42.intellij.plugins.m68k.formatter.M68kLanguageCodeStyleSettingsProvider"/>
+        <navbar implementation="de.platon42.intellij.plugins.m68k.navigation.M68kStructureAwareNavbar"/>
+        <highlightVisitor implementation="de.platon42.intellij.plugins.m68k.syntax.M68kRainbowVisitor"/>
         <colorSettingsPage implementation="de.platon42.intellij.plugins.m68k.syntax.M68kColorSettingsPage"/>
         <completion.contributor language="MC68000" implementationClass="de.platon42.intellij.plugins.m68k.asm.M68kMnemonicCompletionContributor"/>
+        <completion.contributor language="MC68000" implementationClass="de.platon42.intellij.plugins.m68k.asm.M68kDirectiveCompletionContributor"/>
         <completion.contributor language="MC68000" implementationClass="de.platon42.intellij.plugins.m68k.refs.M68kGlobalLabelSymbolCompletionContributor"/>
         <completion.contributor language="MC68000" implementationClass="de.platon42.intellij.plugins.m68k.refs.M68kLocalLabelDefCompletionContributor"/>
         <completion.contributor language="MC68000" implementationClass="de.platon42.intellij.plugins.m68k.refs.M68kMacroCallCompletionContributor"/>

src/test/java/de/platon42/intellij/plugins/m68k/asm/M68kDirectiveCompletionContributorTest.kt

@@ -0,0 +1,63 @@
+package de.platon42.intellij.plugins.m68k.asm
+
+import com.intellij.testFramework.fixtures.CodeInsightTestFixture
+import de.platon42.intellij.jupiter.LightCodeInsightExtension
+import de.platon42.intellij.jupiter.MyFixture
+import de.platon42.intellij.plugins.m68k.AbstractM68kTest
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.extension.ExtendWith
+
+@ExtendWith(LightCodeInsightExtension::class)
+internal class M68kDirectiveCompletionContributorTest : AbstractM68kTest() {
+
+    @Test
+    internal fun completion_shows_plain_directive(@MyFixture myFixture: CodeInsightTestFixture) {
+        myFixture.configureByText(
+            "completeme.asm", """
+ inc<caret>
+        """
+        )
+        myFixture.completeBasic()
+        assertThat(myFixture.lookupElementStrings).containsExactlyInAnyOrder("include", "incbin", "incdir")
+    }
+
+    @Test
+    internal fun completion_shows_other_directive(@MyFixture myFixture: CodeInsightTestFixture) {
+        myFixture.configureByText(
+            "completeme.asm", """
+ IF<caret>
+        """
+        )
+        myFixture.completeBasic()
+        assertThat(myFixture.lookupElementStrings).containsExactlyInAnyOrder(
+            "IF",
+            "IFB",
+            "IFC",
+            "IFD",
+            "IFEQ",
+            "IFGE",
+            "IFGT",
+            "IFLE",
+            "IFLT",
+            "IFMACROD",
+            "IFMACROND",
+            "IFNB",
+            "IFNC",
+            "IFND",
+            "IFNE",
+            "ENDIF"
+        )
+    }
+
+    @Test
+    internal fun completion_shows_data_directives(@MyFixture myFixture: CodeInsightTestFixture) {
+        myFixture.configureByText(
+            "completeme.asm", """
+ dc<caret>
+        """
+        )
+        myFixture.completeBasic()
+        assertThat(myFixture.lookupElementStrings).containsExactlyInAnyOrder("dc", "dc.b", "dc.w", "dc.l", "dcb", "dcb.b", "dcb.w", "dcb.l", "data_c")
+    }
+}

src/test/java/de/platon42/intellij/plugins/m68k/asm/M68kMnemonicCompletionContributorTest.kt

@@ -30,7 +30,7 @@ label: <caret>
         """
         )
         myFixture.completeBasic()
-        assertThat(myFixture.lookupElementStrings).hasSameElementsAs(M68kIsa.mnemonics)
+        assertThat(myFixture.lookupElementStrings).containsAnyElementsOf(M68kIsa.mnemonics)
     }
 
     @Test
@@ -41,6 +41,6 @@ label: <caret>
         """
         )
         myFixture.completeBasic()
-        assertThat(myFixture.lookupElementStrings).hasSameElementsAs(M68kIsa.mnemonics)
+        assertThat(myFixture.lookupElementStrings).containsAnyElementsOf(M68kIsa.mnemonics)
     }
 }

src/test/java/de/platon42/intellij/plugins/m68k/folding/M68kFoldingBuilderTest.kt

@@ -0,0 +1,19 @@
+package de.platon42.intellij.plugins.m68k.folding
+
+import com.intellij.testFramework.fixtures.CodeInsightTestFixture
+import de.platon42.intellij.jupiter.LightCodeInsightExtension
+import de.platon42.intellij.jupiter.MyFixture
+import de.platon42.intellij.jupiter.TestDataPath
+import org.junit.jupiter.api.Assertions.*
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.extension.ExtendWith
+
+@TestDataPath("src/test/resources/folding")
+@ExtendWith(LightCodeInsightExtension::class)
+internal class M68kFoldingBuilderTest {
+
+    @Test
+    internal fun check_documentation_for_a_symbol_definition(@MyFixture myFixture: CodeInsightTestFixture) {
+        myFixture.testFolding(myFixture.testDataPath + "/folding.asm")
+    }
+}

src/test/java/de/platon42/intellij/plugins/m68k/formatter/M68kAsmFormatterTest.kt

@@ -0,0 +1,52 @@
+package de.platon42.intellij.plugins.m68k.formatter
+
+import com.intellij.application.options.CodeStyle
+import com.intellij.openapi.command.WriteCommandAction
+import com.intellij.psi.codeStyle.CodeStyleManager
+import com.intellij.testFramework.fixtures.CodeInsightTestFixture
+import com.intellij.util.containers.ContainerUtil
+import de.platon42.intellij.jupiter.LightCodeInsightExtension
+import de.platon42.intellij.jupiter.MyFixture
+import de.platon42.intellij.jupiter.TestDataPath
+import org.junit.jupiter.api.Assertions.*
+import org.junit.jupiter.api.Disabled
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.extension.ExtendWith
+
+
+@TestDataPath("src/test/resources/formatting")
+@ExtendWith(LightCodeInsightExtension::class)
+internal class M68kAsmFormatterTest {
+
+    @Test
+    @Disabled
+    internal fun check_if_formatting_works_as_expected(@MyFixture myFixture: CodeInsightTestFixture) {
+        myFixture.configureByFile("basic_before.asm")
+        val settings = CodeStyle.getLanguageSettings(myFixture.file)
+        settings.indentOptions?.INDENT_SIZE = 6
+        settings.indentOptions?.CONTINUATION_INDENT_SIZE = 9
+        WriteCommandAction.runWriteCommandAction(myFixture.project)
+        {
+            CodeStyleManager.getInstance(myFixture.project).reformatText(
+                myFixture.file,
+                ContainerUtil.newArrayList(myFixture.file.textRange)
+            )
+        }
+        myFixture.checkResultByFile("basic_after.asm")
+    }
+
+    @Test
+    internal fun check_formatting_for_mnemonics(@MyFixture myFixture: CodeInsightTestFixture) {
+        myFixture.configureByFile("mnemonics_before.asm")
+        val settings = CodeStyle.getLanguageSettings(myFixture.file)
+        settings.indentOptions?.INDENT_SIZE = 8
+        WriteCommandAction.runWriteCommandAction(myFixture.project)
+        {
+            CodeStyleManager.getInstance(myFixture.project).reformatText(
+                myFixture.file,
+                ContainerUtil.newArrayList(myFixture.file.textRange)
+            )
+        }
+        myFixture.checkResultByFile("mnemonics_after.asm")
+    }
+}

src/test/java/de/platon42/intellij/plugins/m68k/refs/M68kMacroCallCompletionContributorTest.kt

@@ -27,6 +27,6 @@ noppy   MACRO
         """
         )
         myFixture.completeBasic()
-        assertThat(myFixture.lookupElementStrings).containsExactlyInAnyOrder("nop", "not", "noppy")
+        assertThat(myFixture.lookupElementStrings).containsExactlyInAnyOrder("nop", "not", "noppy", "cnop")
     }
 }

src/test/resources/folding/folding.asm

@@ -0,0 +1,46 @@
+; this is a test
+
+FOO = 1
+<fold text='[[[ demo_main ]]]'>; this is the main demo routine
+demo_main:
+        moveq.l #0,d0
+        rts
+
+; data area starts here
+.data   dc.w    10,0
+        even</fold>
+
+; this is an unrelated comment
+
+<fold text='[[[ intro_part1 ]]]'>; this is another folding area
+; could be anything.
+
+intro_part1
+        dc.w    $47fe
+        illegal
+        rts</fold>
+
+; this comment is two lines away
+
+
+<fold text='[[[ intro_part2 ]]]'>intro_part2:
+        moveq.l #0,d1
+        rts</fold>
+
+; standard macros
+<fold text='[[[ MACRO BLTWAIT ]]]'>BLTWAIT MACRO
+.bw\@
+        btst	#DMAB_BLTDONE-8,dmaconr(a5)
+        bne.s	.bw\@
+        ENDM</fold>
+
+********************** foobar
+
+
+<fold text='[[[ some_more_data ]]]'>some_more_data:
+        dc.w    $123
+        dc.w    $345
+        dc.w    $333
+        dc.w    $222</fold>
+
+CUBE_SIZE = 100

src/test/resources/formatting/basic_after.asm

@@ -0,0 +1,51 @@
+; this is a test
+
+FOO = 1
+; this is the main demo routine
+demo_main:
+        moveq.l #0,d0       ; end of line comment
+        rts ; some more comments
+
+; data area starts here
+.data   dc.w    10,0
+        even
+
+this_is_a_very_long_label: moveq.l #0,d0 ; and an end of line comment, too
+
+; this is another folding area
+; could be anything.
+
+intro_part1
+        ; What is this doing here?
+        dc.w    $47fe
+        illegal
+        rts
+
+; this comment is two lines away
+
+
+intro_part2:
+        moveq.l #0,d1
+        rts
+
+; standard macros
+BLTWAIT MACRO
+.bw\@
+        btst	#DMAB_BLTDONE-8,dmaconr(a5)
+        bne.s	.bw\@
+        ENDM
+
+        MACRO BLTHOGOFF
+        moveq.l #0,d0
+        ENDM
+
+********************** foobar
+
+
+some_more_data:
+        dc.w    $123
+        dc.w    $345
+        dc.w    $333
+        dc.w    $222
+
+CUBE_SIZE = 100

src/test/resources/formatting/basic_before.asm

@@ -0,0 +1,51 @@
+    ; this is a test
+
+FOO    =     1
+; this is the main demo routine
+demo_main:
+ moveq.l #0,d0 ; end of line comment
+     rts   ; some more comments
+
+; data area starts here
+.data   dc.w    10,0
+           even
+
+this_is_a_very_long_label: moveq.l #0,d0 ; and an end of line comment, too
+
+; this is another folding area
+; could be anything.
+
+intro_part1
+        ; What is this doing here?
+      dc.w    $47fe
+      illegal
+        rts
+
+; this comment is two lines away
+
+
+intro_part2:
+        moveq.l #0,d1
+        rts
+
+; standard macros
+BLTWAIT MACRO
+.bw\@
+        btst	#DMAB_BLTDONE-8,dmaconr(a5)
+        bne.s	.bw\@
+        ENDM
+
+    MACRO BLTHOGOFF
+        moveq.l #0,d0
+ ENDM
+
+********************** foobar
+
+
+some_more_data:
+        dc.w    $123
+        dc.w    $345
+        dc.w    $333
+        dc.w    $222
+
+CUBE_SIZE = 100

src/test/resources/formatting/mnemonics_after.asm

@@ -0,0 +1,32 @@
+FOO = 1234
+BAR    =   1235
+
+COUNTER SET COUNTER+1
+
+FISH    MACRO
+.fish\@ rts
+    ENDM
+      MACRO SOUP
+        moveq.l #0,d0
+        ENDM
+
+; with space
+
+; standalone comment
+        moveq.l #10,d1  ; end of line comment
+        FISH
+        add.l   #10,d1
+        SOUP
+        subq.b  #2,d2   ; end of line comment
+        bra.s   .foo
+        nop
+.foo    move.l  d2,d1
+        rts
+.verylonglabel:
+        stop    #$2000
+
+.narf
+        moveq.l #2,d0
+
+globallabel:
+        moveq.l #0,d0

src/test/resources/formatting/mnemonics_before.asm

@@ -0,0 +1,31 @@
+FOO = 1234
+BAR    =   1235
+
+COUNTER SET COUNTER+1
+
+FISH    MACRO
+.fish\@ rts
+    ENDM
+      MACRO SOUP
+        moveq.l #0,d0
+        ENDM
+
+; with space
+
+; standalone comment
+
+    moveq.l #10,d1; end of line comment
+    FISH
+ add.l #10,d1
+ SOUP
+  subq.b #2,d2   ; end of line comment
+   bra.s      .foo
+  nop
+.foo move.l d2,d1
+    rts
+.verylonglabel: stop #$2000
+
+.narf
+    moveq.l #2,d0
+
+globallabel: moveq.l #0,d0