Bug fix---NULL dereference

spc476 · Feb 9, 2018 · 815a557 · 815a557
1 parent 4ce0db0
commit 815a557
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/mc6809dis.c b/mc6809dis.c
@@ -1811,7 +1811,7 @@ void mc6809dis_direct(
   assert(dis != NULL);
   assert(op  != NULL);
 
-  addr.b[MSB] = cpu->dp;
+  addr.b[MSB] = cpu != NULL ? cpu->dp : 0;
   addr.b[LSB] = (*dis->read)(dis,dis->next++);
 
   snprintf(dis->operand,sizeof(dis->operand),"%02X",addr.b[LSB]);