From cdff90f20df16128765eb79b16cb97c84226e3c1 Mon Sep 17 00:00:00 2001
From: Thomas Harte <thomas.harte@gmail.com>
Date: Sat, 12 Mar 2016 22:55:33 -0500
Subject: [PATCH] Fixed: setting an interrupt control value with the lowest bit
 set could result in interrupts that can't be disabled.

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

diff --git a/Machines/Electron/Electron.cpp b/Machines/Electron/Electron.cpp
index 3d14430c8..c1db966e1 100644
--- a/Machines/Electron/Electron.cpp
+++ b/Machines/Electron/Electron.cpp
@@ -116,7 +116,7 @@ unsigned int Machine::perform_bus_operation(CPU6502::BusOperation operation, uin
 						}
 						else
 						{
-							_interrupt_control = *value;
+							_interrupt_control = (*value) & ~1;
 							evaluate_interrupts();
 						}
 					break;