diff --git a/.github/workflows/build-osx.yml b/.github/workflows/build-osx.yml
index 68797735..2a50dae3 100644
--- a/.github/workflows/build-osx.yml
+++ b/.github/workflows/build-osx.yml
@@ -6,8 +6,9 @@ on:
 
 jobs:
   osx:
-    runs-on: macos-12
+    runs-on: macos-14
     steps:
+      - run: rm /usr/lib/python3.11/EXTERNALLY-MANAGED
       - run: brew install zmq sdl2 libelf
       - run: pip3 install meson
       - run: pip3 install ninja
diff --git a/Inc/generics.h b/Inc/generics.h
index 7f1d8b23..becbea74 100644
--- a/Inc/generics.h
+++ b/Inc/generics.h
@@ -20,6 +20,7 @@ extern "C" {
 #endif
 
 /* Error return codes .. may already be defined by ncurses */
+typedef int errcode;
 #ifndef OK
 #define OK         0
 #endif
diff --git a/README.md b/README.md
index 0a249769..d22a58e2 100644
--- a/README.md
+++ b/README.md
@@ -737,7 +737,8 @@ line for orbtop would be;
 
 One useful command line option for orbtop (and indeed, for the majority of the rest of the
 suite) is `-s localhost:2332`, which will connect directly to any source you might have exporting
-SWO data on its TCP its port, with no requirement for the orbuculum multiplexer in the way.
+SWO data on its TCP its port, with no requirement for the orbuculum multiplexer in the way. If
+you set the source explicitly, you also need to set the protocol explicitly using `-p`.
 
 Command line options for orbtop are;
 
@@ -769,6 +770,10 @@ Command line options for orbtop are;
 
  `-O, --objdump-opts [opts]`: Set options to pass directly to objdump
 
+ `-p, --protocol [OFLOW|ITM]`: Protocol to communicate. Must be set explicitly if -s is set
+
+ `-P, --pace <microseconds>`: Delay in block of data transmission to clients
+
  `-r, --routines <routines>`: Number of lines to record in history file
 
  `-R, --report-file [filename]`: Report filenames as part of function discriminator
diff --git a/Src/orbtop.c b/Src/orbtop.c
index 3f1b0b52..8674aac1 100644
--- a/Src/orbtop.c
+++ b/Src/orbtop.c
@@ -953,7 +953,7 @@ static struct option _longOptions[] =
     {NULL, no_argument, NULL, 0}
 };
 // ====================================================================================================
-bool _processOptions( int argc, char *argv[] )
+errcode _processOptions( int argc, char *argv[] )
 
 {
     int c, optionIndex = 0;
@@ -1053,7 +1053,7 @@ bool _processOptions( int argc, char *argv[] )
                 if ( options.protocol == PROT_UNKNOWN )
                 {
                     genericsReport( V_ERROR, "Unrecognised protocol type" EOL );
-                    return false;
+                    return ERR;
                 }
 
                 break;
@@ -1066,7 +1066,7 @@ bool _processOptions( int argc, char *argv[] )
                 if ( options.paceDelay <= 0 )
                 {
                     genericsReport( V_ERROR, "paceDelay is out of range" EOL );
-                    return false;
+                    return ERR;
                 }
 
                 break;
@@ -1082,7 +1082,7 @@ bool _processOptions( int argc, char *argv[] )
                 if ( !isdigit( *optarg ) )
                 {
                     genericsReport( V_ERROR, "-v requires a numeric argument." EOL );
-                    return false;
+                    return ERR;		    
                 }
 
                 genericsSetReportLevel( atoi( optarg ) );
@@ -1132,7 +1132,7 @@ bool _processOptions( int argc, char *argv[] )
             // ------------------------------------
             case 'V':
                 _printVersion();
-                return -EINVAL;
+                return ERR;
 
             // ------------------------------------
             case '?':
@@ -1145,25 +1145,26 @@ bool _processOptions( int argc, char *argv[] )
                     genericsReport( V_ERROR, "Unknown option character `\\x%x'." EOL, optopt );
                 }
 
-                return -EINVAL;
+                return ERR;
 
             // ------------------------------------
             default:
                 genericsReport( V_ERROR, "Unknown option %c" EOL, optopt );
-                return -EINVAL;
+                return ERR;
                 // ------------------------------------
         }
 
     /* If we set an explicit server and port and didn't set a protocol chances are we want ITM, not OFLOW */
     if ( serverExplicit && !protExplicit )
     {
-        options.protocol = PROT_ITM;
+        genericsReport( V_ERROR, "Protocol must be explicit when server is explicit" EOL );
+        return ERR;
     }
 
     if ( !options.elffile )
     {
         genericsReport( V_ERROR, "Elf File not specified" EOL );
-        exit( -EBADF );
+        return ERR;
     }
 
     genericsReport( V_INFO, "orbtop version " GIT_DESCRIBE EOL );
@@ -1197,14 +1198,14 @@ bool _processOptions( int argc, char *argv[] )
             break;
 
         default:
-            genericsReport( V_INFO, "Decoding unknown" EOL );
-            return false;
+            genericsReport( V_ERROR, "Decoding unknown" EOL );
+            return ERR;
     }
 
     if ( ( options.paceDelay ) && ( !options.file ) )
     {
         genericsReport( V_ERROR, "Pace Delay only makes sense when input is from a file" EOL );
-        return false;
+        return ERR;
     }
 
     return OK;
diff --git a/Src/symbols.c b/Src/symbols.c
index d428b79c..13bd93cb 100644
--- a/Src/symbols.c
+++ b/Src/symbols.c
@@ -950,8 +950,6 @@ bool SymbolLookup( struct SymbolSet *s, uint32_t addr, struct nameEntry *n )
         return true;
     }
 
-
-    printf("%08x ",addr);
     n->fileindex = n->functionindex = n->line = 0;
     n->source   = "";
     n->assy     = NULL;