atari5200: add screensize function

2019-04-02 22:06:53 +02:00
parent db01036e2e
commit 79b9a8d2df
2 changed files with 19 additions and 2 deletions
--- a/libsrc/atari5200/_scrsize.s
+++ b/libsrc/atari5200/_scrsize.s
@@ -0,0 +1,19 @@
+;
+; Christian Groessler, 02-Apr-2019
+;
+; Screen size variables
+;
+
+        .export         screensize
+        .importzp       screen_width, screen_height
+        .include        "atari.inc"
+
+.proc   screensize
+
+        ldx     #screen_width
+        ldy     #screen_height
+        rts
+
+.endproc
+
+