From 3abf7993ce2d2deb1c0596f3404b2bfa27324564 Mon Sep 17 00:00:00 2001
From: "B. Watson" <yalhcru@gmail.com>
Date: Wed, 17 Feb 2016 23:47:59 -0500
Subject: make the cursor behave *much* better, via custom conio function

---
 conio/chline.s | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 conio/chline.s

(limited to 'conio/chline.s')

diff --git a/conio/chline.s b/conio/chline.s
new file mode 100644
index 0000000..2ad7fed
--- /dev/null
+++ b/conio/chline.s
@@ -0,0 +1,32 @@
+;
+; Ullrich von Bassewitz, 08.08.1998
+;
+; void chlinexy (unsigned char x, unsigned char y, unsigned char length);
+; void chline (unsigned char length);
+;
+
+        .export         _chlinexy, _chline
+        .import         popa, _gotoxy, cputdirect
+        .importzp       tmp1
+
+.ifdef __ATARI5200__
+CHRCODE =       14
+.else
+CHRCODE =       $12+64
+.endif
+
+_chlinexy:
+        pha                     ; Save the length
+        jsr     popa            ; Get y
+        jsr     _gotoxy         ; Call this one, will pop params
+        pla                     ; Restore the length
+
+_chline:
+        cmp     #0              ; Is the length zero?
+        beq     L9              ; Jump if done
+        sta     tmp1
+L1:     lda     #CHRCODE        ; Horizontal line, screen code
+        jsr     cputdirect      ; Direct output
+        dec     tmp1
+        bne     L1
+L9:     rts
-- 
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