From e9d6566e9cbe7cddd12688c1c441e08bb2d445db Mon Sep 17 00:00:00 2001
From: Thomas Harte <thomas.harte@gmail.com>
Date: Sat, 26 Nov 2016 09:35:44 +0800
Subject: [PATCH] Of course, changing the IRQ enable may immediately change the
 IRQ line. Signal if so.

---
 Machines/Oric/Microdisc.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Machines/Oric/Microdisc.cpp b/Machines/Oric/Microdisc.cpp
index a4f784837..2aa5f7690 100644
--- a/Machines/Oric/Microdisc.cpp
+++ b/Machines/Oric/Microdisc.cpp
@@ -44,7 +44,13 @@ void Microdisc::set_control_register(uint8_t control)
 	set_is_double_density(!(control & 0x08));
 
 	// b0: IRQ enable
+	bool had_irq = get_interrupt_request_line();
 	irq_enable_ = !!(control & 0x01);
+	bool has_irq = get_interrupt_request_line();
+	if(has_irq != had_irq && delegate_)
+	{
+		delegate_->wd1770_did_change_interrupt_request_status(this);
+	}
 
 	// b7: EPROM select (0 = select)
 	// b1: ROM disable (0 = disable)