From a2784ae02d640e896cb123095d570415b27b8c8a Mon Sep 17 00:00:00 2001
From: "Adrian.Conlon" <adrian.conlon@gmail.com>
Date: Thu, 31 Aug 2017 17:21:44 +0100
Subject: [PATCH] Timers can (of course) expire during CPU instruction
 execution.

Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
---
 LR35902/src/Bus.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/LR35902/src/Bus.cpp b/LR35902/src/Bus.cpp
index ab473ea..5767797 100644
--- a/LR35902/src/Bus.cpp
+++ b/LR35902/src/Bus.cpp
@@ -180,7 +180,7 @@ void EightBit::Bus::checkTimer(int cycles) {
 	if (timerEnabled()) {
 		m_timerCounter -= cycles;
 		if (m_timerCounter <= 0) {
-			m_timerCounter = m_timerRate;
+			m_timerCounter += m_timerRate;
 			incrementTIMA();
 		}
 	}