From 00313327f7ac7d11050df7153f0d15baabd4bd10 Mon Sep 17 00:00:00 2001
From: Toni Wilen <twilen@winuae.net>
Date: Fri, 10 Jan 2020 21:59:33 +0200
Subject: [PATCH] 68010 ADDX.L/SUBX.L bus error fix.

---
 gencpu.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/gencpu.cpp b/gencpu.cpp
index 435c1b90..2b428766 100644
--- a/gencpu.cpp
+++ b/gencpu.cpp
@@ -2934,8 +2934,13 @@ static void genamode2x (amodes mode, const char *reg, wordsizes size, const char
 
 		if (cpu_level == 1) {
 			// 68010 does dummy access
-			if (getv != 2)
-				printf("\t\tuae_s16 d_%s = %s(%sa & ~1);\n", name, srcw, name);
+			if (getv != 2) {
+				if ((flags & GF_REVERSE) && size == sz_long) {
+					printf("\t\tuae_s16 d_%s = %s((%sa + 2) & ~1);\n", name, srcw, name);
+				} else {
+					printf("\t\tuae_s16 d_%s = %s(%sa & ~1);\n", name, srcw, name);
+				}
+			}
 			if (abs(bus_error_reg_add) == 4)
 				bus_error_reg_add = 0;
 			// 68010 CLR <memory>: pre and post are not added yet
-- 
2.47.3