diff --git a/compiler/src/prog8/compiler/IntermediateAstMaker.kt b/compiler/src/prog8/compiler/IntermediateAstMaker.kt
index f289e507a..9708e3abc 100644
--- a/compiler/src/prog8/compiler/IntermediateAstMaker.kt
+++ b/compiler/src/prog8/compiler/IntermediateAstMaker.kt
@@ -4,6 +4,7 @@ import com.github.michaelbull.result.Ok
 import com.github.michaelbull.result.Result
 import com.github.michaelbull.result.getOrElse
 import com.github.michaelbull.result.mapError
+import prog8.ast.IFunctionCall
 import prog8.ast.IStatementContainer
 import prog8.ast.Program
 import prog8.ast.base.FatalAstException
@@ -232,15 +233,14 @@ class IntermediateAstMaker(val program: Program) {
         }
         // instead of just assigning to the parameters, another way is to use push()/pop()
         if(previousNodes.isNotEmpty()) {
-            val first = previousNodes[0] as? FunctionCallStatement
-            if(first!=null && first.target.nameInSource == listOf("pop")) {
-                val numPops = previousNodes.indexOfFirst { (it as? FunctionCallStatement)?.target?.nameInSource != listOf("pop") }
+            val first = previousNodes[0] as? IFunctionCall
+            if(first!=null && (first.target.nameInSource.singleOrNull() in arrayOf("pop", "popw"))) {
+                val numPops = previousNodes.indexOfFirst { (it as? IFunctionCall)?.target?.nameInSource?.singleOrNull() !in arrayOf("pop", "popw") }
                 val pops = previousNodes.subList(0, numPops)
-                val pushes = previousNodes.subList(numPops, numPops+numPops)
-                // TODO one of these has to be reversed?
+                val pushes = previousNodes.subList(numPops, numPops+numPops).reversed()
                 for ((push, pop) in pushes.zip(pops)) {
-                    val name = ((pop as FunctionCallStatement).args.single() as IdentifierReference).nameInSource.last()
-                    val arg = (push as FunctionCallStatement).args.single()
+                    val name = ((pop as IFunctionCall).args.single() as IdentifierReference).nameInSource.last()
+                    val arg = (push as IFunctionCall).args.single()
                     paramValues[name] = arg
                 }
             }
diff --git a/compiler/src/prog8/compiler/astprocessing/BeforeAsmAstChanger.kt b/compiler/src/prog8/compiler/astprocessing/BeforeAsmAstChanger.kt
index 9cb2d42ad..35494a45b 100644
--- a/compiler/src/prog8/compiler/astprocessing/BeforeAsmAstChanger.kt
+++ b/compiler/src/prog8/compiler/astprocessing/BeforeAsmAstChanger.kt
@@ -29,8 +29,6 @@ internal class BeforeAsmAstChanger(val program: Program,
     }
 
     override fun after(containment: ContainmentCheck, parent: Node): Iterable<IAstModification> {
-        if(containment.element !is IdentifierReference && containment.element !is NumericLiteral)
-            throw InternalCompilerException("element in containmentcheck should be identifier or constant number")
         if(containment.iterable !is IdentifierReference)
             throw InternalCompilerException("iterable in containmentcheck should be identifier (referencing string or array)")
         return noModifications
diff --git a/docs/source/todo.rst b/docs/source/todo.rst
index 7b1539e86..3f9f6ab9a 100644
--- a/docs/source/todo.rst
+++ b/docs/source/todo.rst
@@ -3,7 +3,7 @@ TODO
 
 For next release
 ^^^^^^^^^^^^^^^^
-- fix assembler application compiler crash
+- fix assembler application included file loading problem (hello4.asm)
 - x16: add new keyboard APIs https://github.com/commanderx16/x16-docs/blob/master/Commander%20X16%20Programmer%27s%20Reference%20Guide.md#keyboard
 - x16: optimize diskio load_raw because headerless files are now supported https://github.com/commanderx16/x16-rom/pull/216
   note: must still work on c64/c128 that don't have this!