Introduced internal gotoxy that pops both parameters.

About all CONIO functions offering a <...>xy variant call popa _gotoxy By providing an internal gotoxy variant that starts with a popa all those CONIO function can be shortened by 3 bytes. As soon as program calls more than one CONIO function this means an overall code size reduction.
2016-06-05 14:58:38 +02:00
parent d670998814
commit 13482984ca
50 changed files with 120 additions and 152 deletions
--- a/libsrc/atari/gotoxy.s
+++ b/libsrc/atari/gotoxy.s
@@ -6,14 +6,17 @@

        .include "atari.inc"

-        .export         _gotoxy
+        .export         gotoxy, _gotoxy
        .import         popa
        .import         setcursor

+gotoxy:
+        jsr     popa            ; Get Y
+
 _gotoxy:                        ; Set the cursor position
        sta     ROWCRS          ; Set Y
        jsr     popa            ; Get X
        sta     COLCRS          ; Set X
        lda     #0
-        sta     COLCRS+1        ;
+        sta     COLCRS+1
        jmp     setcursor