diff --git a/wip-hugo/routines/line/line_test.s b/wip-hugo/routines/line/line_test.s
index 67e67f3..f8e0466 100644
--- a/wip-hugo/routines/line/line_test.s
+++ b/wip-hugo/routines/line/line_test.s
@@ -50,11 +50,13 @@ end:
         B_end = $FEFF
         VIC_bank = $4000
         VIC_bank_end = VIC_bank + $3FFF
+        ;;Paint the bitmap black. More bitmap: https://www.c64-wiki.com/wiki/53272, https://www.c64-wiki.com/wiki/Screen_RAM#Moving_of_screen_RAM
         Mov_16 >B_start, <B_start, #<VIC_bank, #>VIC_bank
         Mov_16 >B_end, <B_end, #<$5f3f,  #>$5f3f
         LDA #$00
         jsr memset
 
+
         LDA #$00
         STA X_pos_
         LDA #$60
diff --git a/wip-hugo/routines/line/line_test_time.s b/wip-hugo/routines/line/line_test_time.s
index 87b56db..7006dde 100644
--- a/wip-hugo/routines/line/line_test_time.s
+++ b/wip-hugo/routines/line/line_test_time.s
@@ -37,19 +37,13 @@ end__:
         B_end = $FEFF
         VIC_bank = $4000
         VIC_bank_end = VIC_bank + $3FFF
-        LDA #>VIC_bank
-        STA $FC
-        LDA #<VIC_bank
-        STA $FB
-
-        LDA #>$5f3f
-        STA $FE
-        LDA #<$5f3f
-        STA $FD
-
-        LDA #$0
+        ;;Paint the bitmap black. More bitmap: https://www.c64-wiki.com/wiki/53272, https://www.c64-wiki.com/wiki/Screen_RAM#Moving_of_screen_RAM
+        Mov_16 >B_start, <B_start, #<VIC_bank, #>VIC_bank
+        Mov_16 >B_end, <B_end, #<$5f3f,  #>$5f3f
+        LDA #$00
         jsr memset
 
+
         jmp exit
 
 .endscope