fix confusing output when bit 0 of the idcode is not 1 as required by jtag spec

git-svn-id: https://urjtag.svn.sourceforge.net/svnroot/urjtag/trunk@1610 b68d4a1b-bc3d-0410-92ed-d4ac073336b7

urjtag/ChangeLog

@@ -6,6 +6,10 @@
   * configure.ac: enable -Werror by default only when building out of an scm,
     and add an explicit --enable-werror option to control it
 
+  * src/tap/detect.c: if the idcode failed to parse, don't print it out like it
+    actually worked but only returned zero's as this is confusing -- be clear
+    in that we didn't even attempt to read the idcode
+
 2009-05-19  Arnim Laeuger  <arniml>
 
   * data/Makefile.am, data/broadcom/bcm6348/bcm6348,

urjtag/src/tap/detect.c

@@ -277,10 +277,11 @@ urj_tap_detect_parts (urj_chain_t *chain, const char *db_path)
             urj_tap_register_shift_left (id, 1);
             id->data[0] = 1;
             did = id;
-        }
 
-        urj_log (URJ_LOG_LEVEL_NORMAL, _("Device Id: %s (0x%016" PRIX64 ")\n"),
-                 urj_tap_register_get_string (did), bits_to_uint64 (did));
+            urj_log (URJ_LOG_LEVEL_NORMAL, _("Device Id: %s (0x%016" PRIX64 ")\n"),
+                     urj_tap_register_get_string (did), bits_to_uint64 (did));
+        } else
+            urj_log (URJ_LOG_LEVEL_NORMAL, _("Device Id: unknown as bit 0 was not a 1\n"));
 
         part = urj_part_alloc (did);
         if (part == NULL)