From e5c78e75654ab9b48cf5c4e011e4da23a045ac8f Mon Sep 17 00:00:00 2001
From: hugova <hugova@kth.se>
Date: Tue, 22 Jul 2025 17:15:16 +0200
Subject: [PATCH] remove old syntax such that lines can be drawn without smc

---
 wip-hugo/routines/line/line_down.s     | 4 ++--
 wip-hugo/routines/line/line_down_inv.s | 4 ++--
 wip-hugo/routines/line/line_up.s       | 2 +-
 wip-hugo/routines/line/line_up_inv.s   | 4 ++--
 4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/wip-hugo/routines/line/line_down.s b/wip-hugo/routines/line/line_down.s
index 6c2070d..17d9706 100644
--- a/wip-hugo/routines/line/line_down.s
+++ b/wip-hugo/routines/line/line_down.s
@@ -111,7 +111,7 @@ case_1:
         ;; Because Lag_16:
         ;;      C =1 so we can use !
         ;;      A = >D
-        Sub_16_A D, D + 1, #>V, #<V, !
+        Sub_16_A D, D + 1, #V, #V + 1, !
 decrement_y_pos:
         DEY ; Increment Y pos inside the buffer
         BNE for_x
@@ -124,7 +124,7 @@ move_8px_up: ; Z=1 --> C=1
         JMP for_x
 decrement_y_pos_end:
 case_2:
-        Add_16 D, D + 1, #>dy_2, #<dy_2,!  ;D = D + 2*dy
+        Add_16 D, D + 1, #dy_2, #dy_2 + 1, !  ;D = D + 2*dy
         JMP for_x
 end:
         RTS
diff --git a/wip-hugo/routines/line/line_down_inv.s b/wip-hugo/routines/line/line_down_inv.s
index c8f64d3..7d18f21 100644
--- a/wip-hugo/routines/line/line_down_inv.s
+++ b/wip-hugo/routines/line/line_down_inv.s
@@ -76,7 +76,7 @@ increment_y_pos_end:
         BEQ end
         Lag_16 D, D + 1, #$00, #$02, case_2
 case_1:
-        Sub_16_A D, D + 1, #>V, #<V, !
+        Sub_16_A D, D + 1, #V, #V + 1, !
 increment_pixel_x:
         ASL byte_to_paint
         BCC for_y
@@ -85,7 +85,7 @@ move_8px_left:
         ROL byte_to_paint
         JMP for_y
 case_2:
-        Add_16 D, D + 1, #>dx_2, #<dx_2, ! ;D = D + 2*dx
+        Add_16 D, D + 1, #dx_2, #dx_2 + 1, ! ;D = D + 2*dx
         JMP for_y
 end:
         RTS
diff --git a/wip-hugo/routines/line/line_up.s b/wip-hugo/routines/line/line_up.s
index 9ef4d68..ab56950 100644
--- a/wip-hugo/routines/line/line_up.s
+++ b/wip-hugo/routines/line/line_up.s
@@ -73,7 +73,7 @@ increment_pixel_x_end:
         BEQ end
         Lag_16 D, D + 1, #$00, #$02, case_2
 case_1:
-        Sub_16_A D, D + 1, #>V, #<V,!
+        Sub_16_A D, D + 1, #V, #V + 1,!
 decrement_y_pos:
         DEY
         BNE for_x
diff --git a/wip-hugo/routines/line/line_up_inv.s b/wip-hugo/routines/line/line_up_inv.s
index 2a8d562..07a39c3 100644
--- a/wip-hugo/routines/line/line_up_inv.s
+++ b/wip-hugo/routines/line/line_up_inv.s
@@ -72,7 +72,7 @@ decrement_y_pos_end:
         BEQ end
         Lag_16 D, D + 1, #$00, #$02, case_2
 case_1:
-        Sub_16_A D, D + 1, #>V, #<V, !
+        Sub_16_A D, D + 1, #V, #V + 1, !
 increment_pixel_x:
         LSR byte_to_paint
         BCC for_y
@@ -81,7 +81,7 @@ move_8px_left:
         Add_16 btp_mem_pos, btp_mem_pos + 1, #$08, #$00,!
         JMP for_y
 case_2:
-        Add_16 D, D + 1, #>dx_2, #<dx_2, !
+        Add_16 D, D + 1, #dx_2, #dx_2 + 1, !
         JMP for_y
 end:
         RTS