diff --git a/docs/source/todo.rst b/docs/source/todo.rst
index 75d1feb42..4051d809c 100644
--- a/docs/source/todo.rst
+++ b/docs/source/todo.rst
@@ -3,11 +3,10 @@ TODO
 
 For next release
 ^^^^^^^^^^^^^^^^
-- x16: new vera memory layout https://github.com/commanderx16/x16-rom/issues/185
-   (partly)broken examples: colorbars (no bars), testvtui (VTUI lib not updated for new r39 yet)
+- fix assembler application compiler crash
 - 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!
-- x16: fix the separate applications as well (assembler, ...)
+- x16: fix wormfood (requires new VTUI lib)
 
 - vm codegen: When
 - vm codegen: Pipe expression
diff --git a/examples/cx16/colorbars.p8 b/examples/cx16/colorbars.p8
index 78ec7bc05..86405daa4 100644
--- a/examples/cx16/colorbars.p8
+++ b/examples/cx16/colorbars.p8
@@ -72,15 +72,17 @@ irq {
     sub make_new_gradient() {
         colors.random_half_bar()
         colors.mirror_bar()
-        sys.memcopy(colors.reds, &blinds_lines_reds+32+16, len(colors.reds))
-        sys.memcopy(colors.greens, &blinds_lines_greens+32+16, len(colors.greens))
-        sys.memcopy(colors.blues, &blinds_lines_blues+32+16, len(colors.blues))
+        ; can't use sys.memcopy due to overlapping buffer
+        cx16.memory_copy(colors.reds, &blinds_lines_reds+32+16, len(colors.reds))
+        cx16.memory_copy(colors.greens, &blinds_lines_greens+32+16, len(colors.greens))
+        cx16.memory_copy(colors.blues, &blinds_lines_blues+32+16, len(colors.blues))
     }
 
     sub shift_gradient() {
-        sys.memcopy(&blinds_lines_reds+1, blinds_lines_reds, len(blinds_lines_reds)-1)
-        sys.memcopy(&blinds_lines_greens+1, blinds_lines_greens, len(blinds_lines_greens)-1)
-        sys.memcopy(&blinds_lines_blues+1, blinds_lines_blues, len(blinds_lines_blues)-1)
+        ; can't use sys.memcopy due to overlapping buffer
+        cx16.memory_copy(&blinds_lines_reds+1, blinds_lines_reds, len(blinds_lines_reds)-1)
+        cx16.memory_copy(&blinds_lines_greens+1, blinds_lines_greens, len(blinds_lines_greens)-1)
+        cx16.memory_copy(&blinds_lines_blues+1, blinds_lines_blues, len(blinds_lines_blues)-1)
     }
 
     asmsub set_scanline_color(ubyte color_ix @Y) {