From 22ce85fa9c645c0dd816f82d6134589b0ca0590b Mon Sep 17 00:00:00 2001
From: Souryo <mesenemu@gmail.com>
Date: Thu, 8 Sep 2016 22:55:54 -0400
Subject: [PATCH] FDS: Improved IRQ accuracy - fixes bug in Druid - Kyoufu no
 Tobira

---
 Core/FDS.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Core/FDS.cpp b/Core/FDS.cpp
index df8df2c9..e85136b1 100644
--- a/Core/FDS.cpp
+++ b/Core/FDS.cpp
@@ -63,7 +63,6 @@ void FDS::ClockIrq()
 				_irqCounter = _irqReloadValue;
 			} else {
 				_irqEnabled = false;
-				_irqReloadValue = 0;
 			}
 		}
 	}
@@ -229,6 +228,9 @@ void FDS::WriteRegister(uint16_t addr, uint8_t value)
 			_irqReloadEnabled = (value & 0x01) == 0x01;
 			_irqEnabled = (value & 0x02) == 0x02;
 			_irqCounter = _irqReloadValue;
+			if(!_irqReloadEnabled) {
+				_irqReloadValue = 0;
+			}
 			CPU::ClearIRQSource(IRQSource::External);
 			break;