From 5d25e2b6a79fb44042b8fa50f5b35e28d779e8f6 Mon Sep 17 00:00:00 2001
From: Joshua Bell <inexorabletash@gmail.com>
Date: Thu, 10 Oct 2024 18:36:19 -0700
Subject: [PATCH] DeskTop: Shave 23 bytes using smaller rect offset code

No functional changes.
---
 desktop/desktop.s |  2 +-
 desktop/main.s    | 15 +++++++++++----
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/desktop/desktop.s b/desktop/desktop.s
index a944a16e..570a6431 100644
--- a/desktop/desktop.s
+++ b/desktop/desktop.s
@@ -30,7 +30,7 @@
         DEFSEG SegmentLoader,      $2000, $0200
         DEFSEG SegmentDeskTopAux,  $4000, $8000
         DEFSEG SegmentDeskTopLC,   $D000, $2000
-        DEFSEG SegmentDeskTopMain, $4000, $7900
+        DEFSEG SegmentDeskTopMain, $4000, $7800
         DEFSEG SegmentInitializer, $0800, $0900
         DEFSEG SegmentInvoker,     $0290, $0160
 
diff --git a/desktop/main.s b/desktop/main.s
index b56a9d91..2d5b4315 100644
--- a/desktop/main.s
+++ b/desktop/main.s
@@ -3558,10 +3558,17 @@ common:
         copy    #(560 / kDeltaX), iter_count
 
 rect_loop:
-        add16   delta_x, tmp_rect+MGTK::Rect::x1, tmp_rect+MGTK::Rect::x1
-        add16   delta_x, tmp_rect+MGTK::Rect::x2, tmp_rect+MGTK::Rect::x2
-        add16   delta_y, tmp_rect+MGTK::Rect::y1, tmp_rect+MGTK::Rect::y1
-        add16   delta_y, tmp_rect+MGTK::Rect::y2, tmp_rect+MGTK::Rect::y2
+        ;; Offset rect
+        ptr := $06
+        copy16  #tmp_rect, ptr
+        ldy     #0
+        ldx     #2
+:       add16in (ptr),y, delta_x, (ptr),y
+        iny
+        add16in (ptr),y, delta_y, (ptr),y
+        iny
+        dex
+        bne     :-
 
         copy    #0, index
 icon_loop: