use __RESERVED_MEMORY__ to reserve memory for the default 20x24 text screen

[cc65] / libsrc / atari / _scrsize.s

diff --git a/libsrc/atari/_scrsize.s b/libsrc/atari/_scrsize.s
index 420505fa53734384a5ecf8ecdbab128642b95923..c827ba3970380794114e5423e82ab020acb6363d 100644 (file)
--- a/libsrc/atari/_scrsize.s
+++ b/libsrc/atari/_scrsize.s
@@ -4,11 +4,13 @@
 ; Screen size variables
 ;
 
-       .export         screensize
+        .export         screensize
+        .include        "atari.inc"
 
 .proc   screensize
 
-        ldx     #40
+        ldx     RMARGN
+        inx
         ldy     #24
         rts