From 1af56604780891d08b2544f88f2cb6bafa9c44d4 Mon Sep 17 00:00:00 2001
From: Astrid Smith
Date: Sun, 20 Jun 2010 22:20:00 -0700
Subject: Added video routines, in C

---
 ports.asm | 25 +++++++++++++++++++------
 1 file changed, 19 insertions(+), 6 deletions(-)

(limited to 'ports.asm')

diff --git a/ports.asm b/ports.asm
index 056cd82..32a4a94 100644
--- a/ports.asm
+++ b/ports.asm
@@ -562,13 +562,23 @@ port_out_0e:
 port_in_0f:
 port_out_0f:
 port_in_10:
+	xref	video_row
+	xref	video_increment
+	xref	video_enabled
+	xref	video_6bit
+	xref	video_busy
+	xref	video_cur_row
+	xref	video_cur_col
+	xref	video_write
+	xref	video_read
+
 	;; LCD status
 	clr.b	d1
-	or.b	video_increment(pc),d1
-	or.b	video_row(pc),d1
-	or.b	video_enabled(pc),d1
-	or.b	video_6bit(pc),d1
-	or.b	video_busy(pc),d1
+	or.b	video_increment,d1
+	or.b	video_row,d1
+	or.b	video_enabled,d1
+	or.b	video_6bit,d1
+	or.b	video_busy,d1
 	rts
 
 port_out_10:
@@ -653,10 +663,13 @@ port_out_10_set_row:
 
 port_in_11:
 	;; LCD data
-	bra	video_read
+	jsr	video_read
+	move.b	d0,d1		; return value
+	rts
 
 port_out_11:
 	;; LCD data
+	move.b	d1,(a7)+
 	bra	video_write
 
 port_in_12:
-- 
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