add code word access for ISS plugins

src/plugin/pctrace.cpp

@@ -1,6 +1,7 @@
 #include <iss/arch_if.h>
 #include <iss/plugin/pctrace.h>
 #include <util/logging.h>
+#include <util/ities.h>
 #include <rapidjson/document.h>
 #include <rapidjson/istreamwrapper.h>
 #include "rapidjson/writer.h"
@@ -123,7 +124,9 @@ void iss::plugin::cov::callback(instr_info_t iinfo, const exec_info& einfo) {
 
 //source code for the full output
     auto delay = 0;
-    auto entry = delays[iinfo.instr_id];
+    size_t id = iinfo.instr_id;
+    auto entry = delays[id];
+    auto call = (id==2 || id==3) && bit_sub<7,5>(instr_if->get_instr_word())!=0;
     bool taken = einfo.branch_taken;
     if (einfo.branch_taken)
         delay = entry.taken;