fix line draw bug, that snaps the end to exry 8th pixel

wip-hugo/routines/line/line_down.s

@@ -77,7 +77,6 @@ end_selfmod:
         STA byte_to_paint
         ;; X = X_end - X_pos
         LDX dx
-        LDY #$00
 for_x:
         ;; Paints A to address in |btp_mem_pos* + Y|
         ;; Y is pixel position in the chunk. Therefor it may be that Y = 0, 1, 2, 3, 4, ,5 ,6 ,7.

wip-hugo/routines/line/line_down_inv.s

@@ -51,7 +51,6 @@ selfmod:
 end_selfmod:
         JSR pixel_calc ;;only used first pixel. after this relative position is abused
         STA byte_to_paint
-        LDY #$00
         LDX dy
 for_y:
         LDA byte_to_paint

wip-hugo/routines/line/line_test_extensive.s

@@ -68,11 +68,11 @@ clear_screen_:
 long_line_test_b:
 LDA #$00
 STA X_pos_
-LDA #$60
+LDA #$00
 STA Y_pos_
 LDA #$ff
 STA X_end
-LDA #$0
+LDA #$60
 STA Y_end
 @loop:
 LDA Y_pos_

wip-hugo/routines/line/line_up.s

@@ -54,7 +54,8 @@ end_selfmod:
         JSR pixel_calc ;;only used first pixel. after this relative position is abused
         STA byte_to_paint
         Sub_16 btp_mem_pos, btp_mem_pos + 1, #$01, #$00 ;; Y has always a offset of at least 1
-        LDY #$01
+        ;LDY #$01
+        INY
         LDX dx
 for_x:
         LDA byte_to_paint

wip-hugo/routines/line/line_up_inv.s

@@ -52,7 +52,7 @@ selfmod:
 end_selfmod:
         JSR pixel_calc ;;only used first pixel. after this relative position is abused
         STA byte_to_paint
-        LDY #$00
+        ;LDY #$00
         LDX dy
 for_y:
         LDA byte_to_paint