draft a ROC.STATUS that shows all active rocs

Author: tomeichlersmith

app/tool/roc.cxx

@@ -139,9 +139,12 @@ static void roc(const std::string& cmd, Target* pft) {
                                    : " taken out of RUNMODE");
   }
   if (cmd == "STATUS") {
-    std::cout << "ROC" << pftool::state.iroc
-              << " with RUNMODE: " << (roc.isRunMode() ? "ON" : "OFF")
-              << std::endl;
+    for (const auto& i: pft->roc_ids()) {
+      printf("ROC%d is %3s%s\n",
+        i,
+        (pft->roc(i).isRunMode() ? "ON" : "OFF"),
+        (i == pftool::state.iroc ? " <- selected" : ""));
+    }
   }
   if (cmd == "PAGE") {
     auto page = pftool::readline("Page? ", pftool::state.roc_page_names());