From 0833412df98204ae1e466e50af06810560b1f6e4 Mon Sep 17 00:00:00 2001
From: Thomas Harte <thomas.harte@gmail.com>
Date: Fri, 1 Jun 2018 19:45:37 -0400
Subject: [PATCH] Corrects port for ZON-X reads.

---
 Machines/ZX8081/ZX8081.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Machines/ZX8081/ZX8081.cpp b/Machines/ZX8081/ZX8081.cpp
index 5d5828256..ed52a1e98 100644
--- a/Machines/ZX8081/ZX8081.cpp
+++ b/Machines/ZX8081/ZX8081.cpp
@@ -157,7 +157,7 @@ template<bool is_zx81> class ConcreteMachine:
 
 					// The below emulates the ZonX AY expansion device.
 					if(is_zx81) {
-						if((address&0xef) == 0x0f) {
+						if((address&0xef) == 0xcf) {
 							value &= ay_read_data();
 						}
 					}