Flushing current state for a release.

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) [![Coverage Status](https://coveralls.io/repos/github/chrisly42/mc68000-asm-plugin/badge.svg?branch=main)](https://coveralls.io/github/chrisly42/mc68000-asm-plugin?branch=main)
+# MC68000 Assembly Language Plugin [![Build Status](https://app.travis-ci.com/chrisly42/mc68000-asm-plugin.svg?branch=main)](https://app.travis-ci.com/chrisly42/mc68000-asm-plugin) [![Coverage Status](https://coveralls.io/repos/github/chrisly42/mc68000-asm-plugin/badge.svg?branch=main)](https://coveralls.io/github/chrisly42/mc68000-asm-plugin?branch=main)
 
 _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
@@ -149,7 +150,7 @@ 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 1.7 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
 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
@@ -164,6 +165,19 @@ 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.
@@ -249,4 +263,4 @@ are appreciated. It really is keeping me motivated to continue development.
 
 ### V0.1 (20-Jul-21)
 
-- Initial public release.
+- Initial public release.

build.gradle

@@ -1,68 +1,56 @@
 plugins {
     id 'java'
-    id 'org.jetbrains.intellij' version '1.9.0'
+    id 'org.jetbrains.intellij' version '1.17.1'
-    id 'org.jetbrains.kotlin.jvm' version '1.7.20'
+    id 'org.jetbrains.kotlin.jvm' version '1.9.22'
     id 'jacoco'
-    id 'com.github.kt3k.coveralls' version '2.12.0'
 }
 
 group = 'de.platon42'
-version = '0.10'
+version = '0.11'
-sourceCompatibility = "1.8"
+sourceCompatibility = 17
-targetCompatibility = "1.8"
+targetCompatibility = 17
 
 repositories {
     mavenCentral()
 }
 
 /*
-  To run tests in IntelliJ use these VM Options for run configuration 
+  To run tests in IntelliJ use these VM Options for run configuration
   -ea -Didea.system.path=build/idea-sandbox/system-test -Didea.config.path=build/idea-sandbox/config-test -Didea.plugins.path=build/idea-sandbox/plugins-test
  */
 
 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("2022.2.3") // LATEST-EAP-SNAPSHOT
+    setVersion("2022.3") // LATEST-EAP-SNAPSHOT
     setUpdateSinceUntilBuild(false)
 //    setPlugins(["com.intellij.java"])
 }
 
 runPluginVerifier {
-    ideVersions = ["IC-203.6682.168", "IC-222.4345.14", // 2020.3 - 2022.2.3
+    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-221.5921.22", // 2022.1.3
-                   "CL-222.4345.21"] // 2022.2.4
     downloadDir = System.getProperty("user.home") + "/.gradle/caches/modules-2/files-2.1/com.jetbrains.intellij.idea/verifier"
 }
 
 patchPluginXml {
     setChangeNotes("""
-  <h4>V0.10 (undefined)</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>New: Added semantic highlighting. Currently available for data and address registers and local labels.
     <li>Bugfix: addq/subq for address register stated it would affect the condition codes, which it in fact doesn't.
     <li>New: Added simple custom navigation bar.
@@ -70,7 +58,7 @@ patchPluginXml {
     <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>
 """)
 }
 
@@ -86,10 +74,6 @@ test {
     }
 }
 
-tasks.coveralls {
-    dependsOn jacocoTestReport
-}
-
 jacoco {
     toolVersion = '0.8.8'
 }
@@ -103,4 +87,4 @@ jacocoTestReport {
 
 publishPlugin {
     setToken(intellijPublishToken)
-}
+}

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/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/resources/META-INF/plugin.xml

@@ -21,9 +21,12 @@
                                implementationClass="de.platon42.intellij.plugins.m68k.parser.M68kParserDefinition"/>
         <lang.syntaxHighlighterFactory language="MC68000"
                                        implementationClass="de.platon42.intellij.plugins.m68k.syntax.M68kSyntaxHighlighterFactory"/>
-        <lang.foldingBuilder
+        <lang.foldingBuilder language="MC68000"
-                language="MC68000"
+                             implementationClass="de.platon42.intellij.plugins.m68k.folding.M68kFoldingBuilder"/>
-                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"/>
@@ -84,4 +87,4 @@
 
     <actions>
     </actions>
-</idea-plugin>
+</idea-plugin>

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/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