From 27d52c67fcbb19868e601f969dd13bfba5cbf94b Mon Sep 17 00:00:00 2001
From: sorgelig <pour.garbage@gmail.com>
Date: Sat, 21 Jul 2018 09:08:47 +0800
Subject: [PATCH] T80: fix interrupt ack after IN/OUT instructions.

---
 t80/T80.vhd | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/t80/T80.vhd b/t80/T80.vhd
index 44ffe2e..0f8d80d 100644
--- a/t80/T80.vhd
+++ b/t80/T80.vhd
@@ -1024,12 +1024,13 @@ begin
 		elsif rising_edge(CLK_n) then
 			
 			if CEN = '1' then
+				Auto_Wait_t2 <= Auto_Wait_t1;
 				if T_Res = '1' then
 					Auto_Wait_t1 <= '0';
+					Auto_Wait_t2 <= '0';
 				else
 					Auto_Wait_t1 <= Auto_Wait or IORQ_i;
 				end if;
-				Auto_Wait_t2 <= Auto_Wait_t1;
 				No_BTR <= (I_BT and (not IR(4) or not F(Flag_P))) or
 						(I_BC and (not IR(4) or F(Flag_Z) or not F(Flag_P))) or
 						(I_BTR and (not IR(4) or F(Flag_Z)));