From bf9b7a26f6cc502bf1692bdff567d8af35657510 Mon Sep 17 00:00:00 2001
From: Luke Usher <luke.usher@outlook.com>
Date: Tue, 25 Sep 2018 21:54:04 +0100
Subject: [PATCH] Minor tweaks

---
 src/CxbxKrnl/EmuX86.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/CxbxKrnl/EmuX86.cpp b/src/CxbxKrnl/EmuX86.cpp
index 9342ce5dd..08358136e 100644
--- a/src/CxbxKrnl/EmuX86.cpp
+++ b/src/CxbxKrnl/EmuX86.cpp
@@ -541,10 +541,10 @@ void EmuX86_Addr_Write(const OperandAddress &opAddr, const uint32_t value)
 		// Set the correct part of the register
 		switch (opAddr.size) {
 			case sizeof(uint8_t) :
-				regval = (regval & 0xFFFFFF00) | value;
+				regval = (regval & 0xFFFFFF00) | (value & 0xFF);
 				break;
 			case sizeof(uint16_t):
-				regval = (regval & 0xFFFF0000) | value;
+				regval = (regval & 0xFFFF0000) | (value & 0xFFFF);
 				break;
 		}