From 26005596004a804bca7caf7b7a31b0fd06a04a24 Mon Sep 17 00:00:00 2001
From: 0kmg <9137159+0kmg@users.noreply.github.com>
Date: Wed, 21 Jul 2021 14:02:54 -0800
Subject: [PATCH] bus/nes: Explicitly clear IRQs in almanfds games.

---
 src/devices/bus/nes/kaiser.cpp | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/devices/bus/nes/kaiser.cpp b/src/devices/bus/nes/kaiser.cpp
index e70fab4c242..9606e7d84ef 100644
--- a/src/devices/bus/nes/kaiser.cpp
+++ b/src/devices/bus/nes/kaiser.cpp
@@ -616,14 +616,12 @@ void nes_ks7017_device::device_timer(emu_timer &timer, device_timer_id id, int p
 	{
 		if (m_irq_enable)
 		{
-			if (!m_irq_count)
+			if (--m_irq_count == 0)
 			{
-				hold_irq_line();
+				set_irq_line(ASSERT_LINE);
 				m_irq_enable = 0;
 				m_irq_status |= 0x01;
 			}
-			else
-				m_irq_count--;
 		}
 	}
 }
@@ -668,6 +666,7 @@ uint8_t nes_ks7017_device::read_ex(offs_t offset)
 	{
 		int temp = m_irq_status;
 		m_irq_status &= ~0x01;
+		set_irq_line(CLEAR_LINE);
 		return temp;
 	}