From 6a392f2cc9f0b11f049be097f633549f540c6fa3 Mon Sep 17 00:00:00 2001
From: gm-matthew <108370479+gm-matthew@users.noreply.github.com>
Date: Fri, 25 Nov 2022 22:44:22 +0000
Subject: [PATCH] Add comment

---
 Src/Model3/Model3.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Src/Model3/Model3.cpp b/Src/Model3/Model3.cpp
index 827ff86..ec34575 100644
--- a/Src/Model3/Model3.cpp
+++ b/Src/Model3/Model3.cpp
@@ -2070,6 +2070,8 @@ void CModel3::RunMainBoardFrame(void)
 		IRQ.Assert(0x02);								// start at 33% of the frame
 
 		// keep running cycles until IRQ2 is acknowledged
+        // Ski Champ can hang if we check the MIDI control port too early
+        // and miss MIDI interrupts pending before the next IRQ2
 		while (IRQ.ReadIRQEnable() & 0x2 && IRQ.ReadIRQState() & 0x2 && dispCycles > 1000)
 		{
 			ppc_execute(1000);