diff --git a/src/IniConfig.cpp b/src/IniConfig.cpp
index acb9ffa..8045bf2 100644
--- a/src/IniConfig.cpp
+++ b/src/IniConfig.cpp
@@ -1,7 +1,7 @@
 /*
  * This file is part of sidplayfp, a console SID player.
  *
- * Copyright 2011-2020 Leandro Nini
+ * Copyright 2011-2021 Leandro Nini
  * Copyright 2000-2001 Simon White
  *
  * This program is free software; you can redistribute it and/or modify
@@ -110,7 +110,9 @@ void IniConfig::clear()
     emulation_s.modelForced   = false;
     emulation_s.sidModel      = SidConfig::MOS6581;
     emulation_s.forceModel    = false;
+#if LIBSIDPLAYFP_VERSION_MAJ > 1
     emulation_s.ciaModel      = SidConfig::MOS6526;
+#endif
     emulation_s.filter        = true;
     emulation_s.engine.clear();
 
@@ -380,7 +382,7 @@ void IniConfig::readEmulation(iniHandler &ini)
 
     readBool(ini, TEXT("ForceC64Model"), emulation_s.modelForced);
     readBool(ini, TEXT("DigiBoost"), emulation_s.digiboost);
-
+#if LIBSIDPLAYFP_VERSION_MAJ > 1
     {
         SID_STRING str = readString(ini, TEXT("CiaModel"));
         if (!str.empty())
@@ -391,7 +393,7 @@ void IniConfig::readEmulation(iniHandler &ini)
                 emulation_s.ciaModel = SidConfig::MOS8521;
         }
     }
-
+#endif
     {
         SID_STRING str = readString(ini, TEXT("SidModel"));
         if (!str.empty())
diff --git a/src/IniConfig.h b/src/IniConfig.h
index bcf9760..3643c90 100644
--- a/src/IniConfig.h
+++ b/src/IniConfig.h
@@ -1,7 +1,7 @@
 /*
  * This file is part of sidplayfp, a console SID player.
  *
- * Copyright 2011-2019 Leandro Nini
+ * Copyright 2011-2021 Leandro Nini
  * Copyright 2000 Simon White
  *
  * This program is free software; you can redistribute it and/or modify
@@ -71,7 +71,9 @@ class IniConfig
         bool          modelForced;
         SidConfig::sid_model_t  sidModel;
         bool          forceModel;
+#if LIBSIDPLAYFP_VERSION_MAJ > 1
         SidConfig::cia_model_t  ciaModel;
+#endif
         bool          digiboost;
         bool          filter;
         double        bias;
diff --git a/src/args.cpp b/src/args.cpp
index 6e09adc..6b98f0a 100644
--- a/src/args.cpp
+++ b/src/args.cpp
@@ -1,7 +1,7 @@
 /*
  * This file is part of sidplayfp, a console SID player.
  *
- * Copyright 2011-2020 Leandro Nini
+ * Copyright 2011-2021 Leandro Nini
  * Copyright 2000-2001 Simon White
  *
  * This program is free software; you can redistribute it and/or modify
@@ -312,11 +312,12 @@ int ConsolePlayer::args(int argc, const char *argv[])
             {
                 m_engCfg.defaultSidModel = SidConfig::MOS8580;
             }
+#if LIBSIDPLAYFP_VERSION_MAJ > 1
             else if (strcmp (&argv[i][1], "-digiboost") == 0)
             {
                 m_engCfg.digiBoost = true;
             }
-
+#endif
             // Video/Verbose Options
             else if (strcmp (&argv[i][1], "vnf") == 0)
             {
@@ -612,8 +613,9 @@ void ConsolePlayer::displayArgs (const char *arg)
 
         << " -m<o|n>[f]   set SID new/old chip model (default: old)" << endl
         << "              Use 'f' to force the model" << endl
+#if LIBSIDPLAYFP_VERSION_MAJ > 1
         << " --digiboost  Enable digiboost for 8580 model" << endl
-
+#endif
         << " -r[i|r][f]   set resampling method (default: resample interpolate)" << endl
         << "              Use 'f' to enable fast resampling (only for reSID)" << endl
 
diff --git a/src/menu.cpp b/src/menu.cpp
index 459f77d..c2de8ad 100644
--- a/src/menu.cpp
+++ b/src/menu.cpp
@@ -1,7 +1,7 @@
 /*
  * This file is part of sidplayfp, a console SID player.
  *
- * Copyright 2011-2019 Leandro Nini
+ * Copyright 2011-2021 Leandro Nini
  * Copyright 2000-2001 Simon White
  *
  * This program is free software; you can redistribute it and/or modify
@@ -351,13 +351,13 @@ void ConsolePlayer::menu ()
         cerr << " SID Filter   : ";
         consoleColour (white, false);
         cerr << (m_filter.enabled ? "Yes" : "No") << endl;
-
+#if LIBSIDPLAYFP_VERSION_MAJ > 1
         consoleTable  (tableMiddle);
         consoleColour (yellow, true);
         cerr << " DigiBoost    : ";
         consoleColour (white, false);
         cerr << (m_engCfg.digiBoost ? "Yes" : "No") << endl;
-
+#endif
         consoleTable  (tableMiddle);
         consoleColour (yellow, true);
         cerr << " SID Model    : ";
diff --git a/src/player.cpp b/src/player.cpp
index 20f40ec..cb55269 100644
--- a/src/player.cpp
+++ b/src/player.cpp
@@ -561,7 +561,11 @@ bool ConsolePlayer::open (void)
     // so try the songlength database or keep the default
     if (!m_timer.valid)
     {
+#if LIBSIDPLAYFP_VERSION_MAJ > 1
         const int_least32_t length = newSonglengthDB ? m_database.lengthMs(m_tune) : (m_database.length(m_tune) * 1000);
+#else
+        const int_least32_t length = m_database.length(m_tune) * 1000;
+#endif
         if (length > 0)
             m_timer.length = length;
     }
@@ -717,9 +721,13 @@ void ConsolePlayer::stop ()
 // External Timer Event
 void ConsolePlayer::updateDisplay()
 {
+#if LIBSIDPLAYFP_VERSION_MAJ > 1
     const uint_least32_t milliseconds = m_engine.timeMs();
     const uint_least32_t seconds = milliseconds / 1000;
-
+#else
+    const uint_least32_t seconds = m_engine.time();
+    const uint_least32_t milliseconds = seconds * 1000;
+#endif
     if (!m_quietLevel && (seconds != (m_timer.current / 1000)))
     {
         cerr << "\b\b\b\b\b" << std::setw(2) << std::setfill('0')
@@ -791,7 +799,12 @@ void ConsolePlayer::decodeKeys ()
             if (!m_track.single)
             {   // Only select previous song if less than timeout
                 // else restart current song
-                if ((m_engine.timeMs()) < SID2_PREV_SONG_TIMEOUT)
+#if LIBSIDPLAYFP_VERSION_MAJ > 1
+    const uint_least32_t milliseconds = m_engine.timeMs();
+#else
+    const uint_least32_t milliseconds = m_engine.time() * 1000;
+#endif
+                if (milliseconds < SID2_PREV_SONG_TIMEOUT)
                 {
                     m_track.selected--;
                     if (m_track.selected < 1)