diff --git a/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/BytecodeCompiler.kt b/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/BytecodeCompiler.kt
index c4ffa70..10efdcf 100644
--- a/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/BytecodeCompiler.kt
+++ b/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/BytecodeCompiler.kt
@@ -217,6 +217,7 @@ class BytecodeCompiler(
             is AssignOpRef -> compileAssignOp(ref) ?: compileEvalRef(ref)
             is AssignIfNullRef -> compileAssignIfNull(ref)
             is IncDecRef -> compileIncDec(ref, true)
+            is RangeRef -> compileRangeRef(ref)
             is ConditionalRef -> compileConditional(ref)
             is ElvisRef -> compileElvis(ref)
             is CallRef -> compileCall(ref)
@@ -1216,6 +1217,34 @@ class BytecodeCompiler(
         return CompiledValue(dst, SlotType.OBJ)
     }
 
+    private fun compileRangeRef(ref: RangeRef): CompiledValue? {
+        val startSlot = if (ref.left != null) {
+            val start = compileRefWithFallback(ref.left, null, Pos.builtIn) ?: return null
+            ensureObjSlot(start).slot
+        } else {
+            val slot = allocSlot()
+            builder.emit(Opcode.CONST_NULL, slot)
+            updateSlotType(slot, SlotType.OBJ)
+            slot
+        }
+        val endSlot = if (ref.right != null) {
+            val end = compileRefWithFallback(ref.right, null, Pos.builtIn) ?: return null
+            ensureObjSlot(end).slot
+        } else {
+            val slot = allocSlot()
+            builder.emit(Opcode.CONST_NULL, slot)
+            updateSlotType(slot, SlotType.OBJ)
+            slot
+        }
+        val inclusiveSlot = allocSlot()
+        val inclusiveId = builder.addConst(BytecodeConst.Bool(ref.isEndInclusive))
+        builder.emit(Opcode.CONST_BOOL, inclusiveId, inclusiveSlot)
+        val dst = allocSlot()
+        builder.emit(Opcode.MAKE_RANGE, startSlot, endSlot, inclusiveSlot, dst)
+        updateSlotType(dst, SlotType.OBJ)
+        return CompiledValue(dst, SlotType.OBJ)
+    }
+
     private fun compileAssignOpBinary(
         targetType: SlotType,
         rhs: CompiledValue,
diff --git a/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/CmdBuilder.kt b/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/CmdBuilder.kt
index 1f342dc..e3b30da 100644
--- a/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/CmdBuilder.kt
+++ b/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/CmdBuilder.kt
@@ -182,6 +182,8 @@ class CmdBuilder {
                 listOf(OperandKind.SLOT, OperandKind.SLOT, OperandKind.SLOT)
             Opcode.SET_INDEX ->
                 listOf(OperandKind.SLOT, OperandKind.SLOT, OperandKind.SLOT)
+            Opcode.MAKE_RANGE ->
+                listOf(OperandKind.SLOT, OperandKind.SLOT, OperandKind.SLOT, OperandKind.SLOT)
             Opcode.LIST_LITERAL ->
                 listOf(OperandKind.CONST, OperandKind.SLOT, OperandKind.COUNT, OperandKind.SLOT)
             Opcode.GET_THIS_MEMBER ->
@@ -225,6 +227,7 @@ class CmdBuilder {
             Opcode.BOX_OBJ -> CmdBoxObj(operands[0], operands[1])
             Opcode.OBJ_TO_BOOL -> CmdObjToBool(operands[0], operands[1])
             Opcode.RANGE_INT_BOUNDS -> CmdRangeIntBounds(operands[0], operands[1], operands[2], operands[3])
+            Opcode.MAKE_RANGE -> CmdMakeRange(operands[0], operands[1], operands[2], operands[3])
             Opcode.CHECK_IS -> CmdCheckIs(operands[0], operands[1], operands[2])
             Opcode.ASSERT_IS -> CmdAssertIs(operands[0], operands[1])
             Opcode.RET_LABEL -> CmdRetLabel(operands[0], operands[1])
diff --git a/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/CmdDisassembler.kt b/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/CmdDisassembler.kt
index 5b5fc09..2692207 100644
--- a/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/CmdDisassembler.kt
+++ b/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/CmdDisassembler.kt
@@ -72,6 +72,7 @@ object CmdDisassembler {
             is CmdCheckIs -> Opcode.CHECK_IS to intArrayOf(cmd.objSlot, cmd.typeSlot, cmd.dst)
             is CmdAssertIs -> Opcode.ASSERT_IS to intArrayOf(cmd.objSlot, cmd.typeSlot)
             is CmdRangeIntBounds -> Opcode.RANGE_INT_BOUNDS to intArrayOf(cmd.src, cmd.startSlot, cmd.endSlot, cmd.okSlot)
+            is CmdMakeRange -> Opcode.MAKE_RANGE to intArrayOf(cmd.startSlot, cmd.endSlot, cmd.inclusiveSlot, cmd.dst)
             is CmdResolveScopeSlot -> Opcode.RESOLVE_SCOPE_SLOT to intArrayOf(cmd.scopeSlot, cmd.addrSlot)
             is CmdLoadObjAddr -> Opcode.LOAD_OBJ_ADDR to intArrayOf(cmd.addrSlot, cmd.dst)
             is CmdStoreObjAddr -> Opcode.STORE_OBJ_ADDR to intArrayOf(cmd.src, cmd.addrSlot)
@@ -213,7 +214,7 @@ object CmdDisassembler {
                 listOf(OperandKind.SLOT, OperandKind.SLOT)
             Opcode.CHECK_IS ->
                 listOf(OperandKind.SLOT, OperandKind.SLOT, OperandKind.SLOT)
-            Opcode.RANGE_INT_BOUNDS ->
+            Opcode.RANGE_INT_BOUNDS, Opcode.MAKE_RANGE ->
                 listOf(OperandKind.SLOT, OperandKind.SLOT, OperandKind.SLOT, OperandKind.SLOT)
             Opcode.RET_LABEL, Opcode.THROW ->
                 listOf(OperandKind.CONST, OperandKind.SLOT)
diff --git a/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/CmdRuntime.kt b/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/CmdRuntime.kt
index 4324ca0..e7b44d9 100644
--- a/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/CmdRuntime.kt
+++ b/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/CmdRuntime.kt
@@ -141,6 +141,21 @@ class CmdConstBool(internal val constId: Int, internal val dst: Int) : Cmd() {
     }
 }
 
+class CmdMakeRange(
+    internal val startSlot: Int,
+    internal val endSlot: Int,
+    internal val inclusiveSlot: Int,
+    internal val dst: Int,
+) : Cmd() {
+    override suspend fun perform(frame: CmdFrame) {
+        val start = frame.slotToObj(startSlot)
+        val end = frame.slotToObj(endSlot)
+        val inclusive = frame.slotToObj(inclusiveSlot).toBool()
+        frame.storeObjResult(dst, ObjRange(start, end, isEndInclusive = inclusive))
+        return
+    }
+}
+
 class CmdConstNull(internal val dst: Int) : Cmd() {
     override suspend fun perform(frame: CmdFrame) {
         frame.setObj(dst, ObjNull)
diff --git a/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/Opcode.kt b/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/Opcode.kt
index 91f20ea..790c56d 100644
--- a/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/Opcode.kt
+++ b/lynglib/src/commonMain/kotlin/net/sergeych/lyng/bytecode/Opcode.kt
@@ -29,6 +29,7 @@ enum class Opcode(val code: Int) {
     CONST_NULL(0x09),
     BOX_OBJ(0x0A),
     RANGE_INT_BOUNDS(0x0B),
+    MAKE_RANGE(0x0C),
 
     INT_TO_REAL(0x10),
     REAL_TO_INT(0x11),
diff --git a/lynglib/src/commonTest/kotlin/ScriptTest.kt b/lynglib/src/commonTest/kotlin/ScriptTest.kt
index 0e7df11..0b71fc8 100644
--- a/lynglib/src/commonTest/kotlin/ScriptTest.kt
+++ b/lynglib/src/commonTest/kotlin/ScriptTest.kt
@@ -1217,7 +1217,6 @@ class ScriptTest {
         )
     }
 
-    @Ignore("Bytecode: unsupported or incorrect behavior")
     @Test
     fun forLoop1() = runTest {
         eval(
@@ -1245,7 +1244,6 @@ class ScriptTest {
         )
     }
 
-    @Ignore("Bytecode: unsupported or incorrect behavior")
     @Test
     fun forLoop2() = runTest {
         println(
@@ -1371,7 +1369,6 @@ class ScriptTest {
         )
     }
 
-    @Ignore("Bytecode: unsupported or incorrect behavior")
     @Test
     fun testOpenEndRanges() = runTest {
         eval(
@@ -1384,7 +1381,6 @@ class ScriptTest {
         )
     }
 
-    @Ignore("Bytecode: unsupported or incorrect behavior")
     @Test
     fun testOpenEndRanges2() = runTest {
         eval(