From ad040f18b07c57825f11c4d7a8d9a662df24f14b Mon Sep 17 00:00:00 2001
From: OBattler <oubattler@gmail.com>
Date: Mon, 27 Apr 2020 03:07:50 +0200
Subject: [PATCH] Changed an accidental addition to the correct subtraction in
 the 808x DAS instruction, fixes XTIDE port reporting.

---
 src/cpu_common/808x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cpu_common/808x.c b/src/cpu_common/808x.c
index 9bd0818bc..ca2b80979 100644
--- a/src/cpu_common/808x.c
+++ b/src/cpu_common/808x.c
@@ -1898,7 +1898,7 @@ execx86(int cycs)
 			temp = !!(cpu_state.flags & A_FLAG);
 			if ((cpu_state.flags & A_FLAG) || ((AL & 0xf) > 9)) {
 				cpu_src = 6;
-				cpu_data = cpu_dest + cpu_src;
+				cpu_data = cpu_dest - cpu_src;
 				set_of_sub(8);
 				cpu_dest = cpu_data;
 				set_af(1);