From 25e65d8197502b8a99c277ac8bd4a45926bb0e45 Mon Sep 17 00:00:00 2001
From: hugova <hugova@kth.se>
Date: Thu, 24 Jul 2025 21:46:31 +0200
Subject: [PATCH] modify linetest to highlight out of bound bad behaviour of
 line

---
 wip-hugo/routines/line/line_test_extensive.s | 78 +++++++++++---------
 1 file changed, 44 insertions(+), 34 deletions(-)

diff --git a/wip-hugo/routines/line/line_test_extensive.s b/wip-hugo/routines/line/line_test_extensive.s
index 6fa69ed..2790b51 100644
--- a/wip-hugo/routines/line/line_test_extensive.s
+++ b/wip-hugo/routines/line/line_test_extensive.s
@@ -6,16 +6,16 @@
         .include "../memory/mem.inc"
         Y_pos_ = $0D
         X_pos_ = $0E
-        Y_end_ = $10
-        X_end_ = $11
+        Y_end_ = $0F
+        X_end_ = $0C
         LDA #$d2
         STA X_pos_
         LDA #$62
         STA Y_pos_
         LDA #$ff
-        STA X_end
+        STA X_end_
         LDA #$0
-        STA Y_end
+        STA Y_end_
 
 ;; Full angle test
 @loop:
@@ -23,16 +23,17 @@
         STA Y_pos
         LDA X_pos_
         STA X_pos
+        LDA X_end_
+        STA X_end
+        LDA Y_end_
+        STA Y_end
 
         jsr line
-        INC Y_end
-        LDA Y_end
-        CMP #$bb
+        INC Y_end_
+        LDA Y_end_
+        CMP #$ff
         bne @loop
 
-
-        hihi:
-        jmp hihi
 clear_screen:
         ;;Lets clear bitmap
         VIC_bank = $4000
@@ -48,18 +49,23 @@ long_line_test_a:
         LDA #$60
         STA Y_pos_
         LDA #$ff
-        STA X_end
+        STA X_end_
         LDA #$0
-        STA Y_end
+        STA Y_end_
 @loop:
         LDA Y_pos_
         STA Y_pos
         LDA X_pos_
         STA X_pos
+        LDA X_end_
+        STA X_end
+        LDA Y_end_
+        STA Y_end
+
         jsr line
-        INC Y_end
-        LDA Y_end
-        CMP #$bb
+        INC Y_end_
+        LDA Y_end_
+        CMP #$ff
         BNE @loop
 
 clear_screen_:
@@ -68,24 +74,28 @@ clear_screen_:
         Mov_16 length, length + 1, #<$1f40,  #>$1f40
         LDA #$00
         jsr memset
-long_line_test_b:
-LDA #$00
-STA X_pos_
-LDA #$00
-STA Y_pos_
-LDA #$ff
-STA X_end
-LDA #$60
-STA Y_end
-@loop:
-LDA Y_pos_
-STA Y_pos
-LDA X_pos_
-STA X_pos
-jsr line
-INC Y_pos_
-LDA Y_pos_
-CMP #$bb
-BNE @loop
 
+long_line_test_b:
+        LDA #$00
+        STA X_pos_
+        LDA #$00
+        STA Y_pos_
+        LDA #$ff
+        STA X_end_
+        LDA #$60
+        STA Y_end_
+@loop:
+        LDA Y_pos_
+        STA Y_pos
+        LDA X_pos_
+        STA X_pos
+        LDA X_end_
+        STA X_end
+        LDA Y_end_
+        STA Y_end
+        jsr line
+        INC Y_pos_
+        LDA Y_pos_
+        CMP #$ff
+        BNE @loop
 .endscope