From f1fee7dc6ea5b1ee1f48264e419e828e7a60cb85 Mon Sep 17 00:00:00 2001
From: alyosha-tas <alexei.f.k@gmail.com>
Date: Fri, 1 Dec 2017 08:51:18 -0500
Subject: [PATCH] TI832: fix port accesses

---
 BizHawk.Emulation.Cores/Calculator/TI83.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/BizHawk.Emulation.Cores/Calculator/TI83.cs b/BizHawk.Emulation.Cores/Calculator/TI83.cs
index cfe82f74eb..403f0fa7b8 100644
--- a/BizHawk.Emulation.Cores/Calculator/TI83.cs
+++ b/BizHawk.Emulation.Cores/Calculator/TI83.cs
@@ -137,6 +137,8 @@ namespace BizHawk.Emulation.Cores.Calculators
 
 		private void WriteHardware(ushort addr, byte value)
 		{
+			addr &= 0xFF;
+
 			switch (addr)
 			{
 				case 0: // PORT_LINK
@@ -232,6 +234,8 @@ namespace BizHawk.Emulation.Cores.Calculators
 
 		private byte ReadHardware(ushort addr)
 		{
+			addr &= 0xFF;
+
 			switch (addr)
 			{
 				case 0: // PORT_LINK