From 38d9b45177d64f5864a9204091981f5efb21417c Mon Sep 17 00:00:00 2001
From: TomW <TomW@localhost>
Date: Wed, 16 Sep 2015 20:44:34 +0100
Subject: [PATCH] Clear PIC interrupt service registers on writing ICW1.

---
 src/pic.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/pic.c b/src/pic.c
index a73ad15..60e92a0 100644
--- a/src/pic.c
+++ b/src/pic.c
@@ -87,6 +87,7 @@ void pic_write(uint16_t addr, uint8_t val, void *priv)
                         pic.mask2=0;
                         pic.icw=1;
                         pic.icw1=val;
+                        pic.ins = 0;
                         pic_updatepending();
                 }
                 else if (!(val&8)) /*OCW2*/
@@ -187,6 +188,7 @@ void pic2_write(uint16_t addr, uint8_t val, void *priv)
                         pic2.mask2=0;
                         pic2.icw=1;
                         pic2.icw1=val;
+                        pic2.ins = 0;
                         pic_updatepending();
                 }
                 else if (!(val&8)) /*OCW2*/