diff --git a/compiler/src/prog8/compiler/target/c64/codegen/AsmGen.kt b/compiler/src/prog8/compiler/target/c64/codegen/AsmGen.kt
index 5646ab4d1..b044a9cf3 100644
--- a/compiler/src/prog8/compiler/target/c64/codegen/AsmGen.kt
+++ b/compiler/src/prog8/compiler/target/c64/codegen/AsmGen.kt
@@ -740,38 +740,40 @@ internal class AsmGen(private val program: Program,
         loopContinueLabels.pop()
     }
 
-    private fun repeatWordCountInAY(counterLabel: String, repeatLabel: String, endLabel: String, body: AnonymousScope) {
+    private fun repeatWordCountInAY(counterVar: String, repeatLabel: String, endLabel: String, body: AnonymousScope) {
         // note: A/Y must have been loaded with the number of iterations already!
+        // TODO allocate word counterVar on zeropage preferrably
         out("""
-                sta  $counterLabel
-                sty  $counterLabel+1
-$repeatLabel    lda  $counterLabel
+                sta  $counterVar
+                sty  $counterVar+1
+$repeatLabel    lda  $counterVar
                 bne  +
-                lda  $counterLabel+1
+                lda  $counterVar+1
                 beq  $endLabel
-+               lda  $counterLabel
++               lda  $counterVar
                 bne  +
-                dec  $counterLabel+1
-+               dec  $counterLabel
+                dec  $counterVar+1
++               dec  $counterVar
 """)
         translate(body)
         out("""
             jmp  $repeatLabel
-$counterLabel    .word  0
+$counterVar    .word  0
 $endLabel""")
     }
 
-    private fun repeatByteCountInA(counterLabel: String, repeatLabel: String, endLabel: String, body: AnonymousScope) {
+    private fun repeatByteCountInA(counterVar: String, repeatLabel: String, endLabel: String, body: AnonymousScope) {
         // note: A must have been loaded with the number of iterations already!
+        // TODO allocate word counterVar on zeropage preferrably
         out("""
-                sta  $counterLabel
-$repeatLabel    lda  $counterLabel
+                sta  $counterVar
+$repeatLabel    lda  $counterVar
                 beq  $endLabel
-                dec  $counterLabel""")
+                dec  $counterVar""")
         translate(body)
         out("""
                 jmp  $repeatLabel
-$counterLabel    .byte  0
+$counterVar    .byte  0
 $endLabel""")
     }
 
diff --git a/compiler/src/prog8/compiler/target/c64/codegen/ForLoopsAsmGen.kt b/compiler/src/prog8/compiler/target/c64/codegen/ForLoopsAsmGen.kt
index 6dd99eaa2..abfd2c8e2 100644
--- a/compiler/src/prog8/compiler/target/c64/codegen/ForLoopsAsmGen.kt
+++ b/compiler/src/prog8/compiler/target/c64/codegen/ForLoopsAsmGen.kt
@@ -14,9 +14,10 @@ import prog8.compiler.target.c64.C64MachineDefinition.ESTACK_LO_PLUS1_HEX
 import prog8.compiler.toHex
 import kotlin.math.absoluteValue
 
+// todo optimized loop code for common simple cases 0..N,  N..0,  >=1..N , N..>=1  where N<=255
 // todo choose more efficient comparisons to avoid needless lda's
 // todo optimize common case when step == 2 or -2
-
+// todo allocate loop counter variable dynamically, preferrably on zeropage
 
 internal class ForLoopsAsmGen(private val program: Program, private val asmgen: AsmGen) {
 
@@ -277,7 +278,7 @@ $continueLabel      inc  $loopLabel+1
 $endLabel""")
             }
             DataType.ARRAY_UB, DataType.ARRAY_B -> {
-                // TODO: optimize loop code when the length of the array is < 256, don't need a separate counter var in such cases
+                // TODO: optimize loop code when the length of the array is < 256
                 val length = decl.arraysize!!.size()!!
                 val counterLabel = asmgen.makeLabel("for_counter")
                 val modifiedLabel = asmgen.makeLabel("for_modified")
@@ -301,7 +302,7 @@ $counterLabel       .byte  0
 $endLabel""")
             }
             DataType.ARRAY_W, DataType.ARRAY_UW -> {
-                // TODO: optimize loop code when the length of the array is < 256, don't need a separate counter var in such cases
+                // TODO: optimize loop code when the length of the array is < 256
                 val length = decl.arraysize!!.size()!! * 2
                 val counterLabel = asmgen.makeLabel("for_counter")
                 val modifiedLabel = asmgen.makeLabel("for_modified")
@@ -343,7 +344,7 @@ $endLabel""")
     }
 
     private fun translateForOverConstRange(stmt: ForLoop, iterableDt: DataType, range: IntProgression) {
-        // TODO: optimize loop code when the range is < 256 iterations, don't need a separate counter var in such cases
+        // TODO: optimize loop code when the range is < 256 iterations
         if (range.isEmpty())
             throw AssemblyError("empty range")
         val loopLabel = asmgen.makeLabel("for_loop")