Index: src/mame/video/antic.c
===================================================================
--- src/mame/video/antic.c	(revision 27234)
+++ src/mame/video/antic.c	(working copy)
@@ -89,9 +89,9 @@
 	case  9: /* nothing */
 		data = antic.r.antic09;
 		break;
-	case 10: /* WSYNC read */
-		space.machine().device("maincpu")->execute().spin_until_trigger(TRIGGER_HSYNC);
-		antic.w.wsync = 1;
+	case 10: /* WSYNC is write only. */
+		//space.machine().device("maincpu")->execute().spin_until_trigger(TRIGGER_HSYNC);
+		//antic.w.wsync = 1;
 		data = antic.r.antic0a;
 		break;
 	case 11: /* vert counter (scanline / 2) */