Don't do unnecessary bus error check if data comes from register without prefetches.

diff --git a/gencpu.cpp b/gencpu.cpp
index fdeb49710e837d6a28e9047c6b844143d9ed7621..d0583ba84ccd35b78d07e157a688f321348addce 100644 (file)
--- a/gencpu.cpp
+++ b/gencpu.cpp
@@ -2666,7 +2666,9 @@ static void genamode2x (amodes mode, const char *reg, wordsizes size, const char
                        strcpy(g_srcname, name);        
        }
 
-       do_instruction_buserror();
+       if (mode >= Ad16) {
+               do_instruction_buserror();
+       }
 
        syncmovepc (getv, flags);
        maybeaddop_ce020 (flags);