diff --git a/source/boing/boing-bel-background.spin b/source/boing/boing-bel-background.spin
index c0db97d..69cee18 100644
Binary files a/source/boing/boing-bel-background.spin and b/source/boing/boing-bel-background.spin differ
diff --git a/source/boing/boing-bel-corecon.spin b/source/boing/boing-bel-corecon.spin
index 572958d..125188b 100644
--- a/source/boing/boing-bel-corecon.spin
+++ b/source/boing/boing-bel-corecon.spin
@@ -1 +1,42 @@
-''
'' prerequisites, dependencies & Co
''
''        Author: Marko Lukat
'' Last modified: 2011/10/22
''       Version: 0.9
''
CON
  _clkmode = XTAL1|PLL16X
  _xinfreq = 5_000_000

CON
  ID_0 = $30B3309C
  ID_1 = $9ED2732B
  ID_2 = $38343032                                      ' cog binary magic number (2048)

  OVERLAY = %00000000_00000001                          ' cog binary is an overlay
  MAPPING = %00000000_00000010                          ' translation table is present

PUB null
'' This is not a top level object.

PUB launch(ID, code, data)
'' PASM quick launch using a specific or the next available ID.
''
'' parameters
''       ID: cog ID
''           0..7: coginit, otherwise cognew (may fail)
''     code: address of code fragment (4n)
''     data: cognew/coginit parameter (4n)
''
'' result
''     == 0: [ABORT] thread creation failed (cognew only)
''     <> 0: thread/cog ID + 1

  ifnot (ID >> 3)
    coginit(ID++, code, data)
  elseifnot ID := cognew(code, data) + 1
    abort
  return ID

DAT
\ No newline at end of file
+''
+'' prerequisites, dependencies & Co
+''
+''        Author: Marko Lukat
+'' Last modified: 2011/10/22
+''       Version: 0.9
+''
+CON
+  _clkmode = XTAL1|PLL16X
+  _xinfreq = 5_000_000
+
+CON
+  ID_0 = $30B3309C
+  ID_1 = $9ED2732B
+  ID_2 = $38343032                                      ' cog binary magic number (2048)
+
+  OVERLAY = %00000000_00000001                          ' cog binary is an overlay
+  MAPPING = %00000000_00000010                          ' translation table is present
+
+PUB null
+'' This is not a top level object.
+
+PUB launch(ID, code, data)
+'' PASM quick launch using a specific or the next available ID.
+''
+'' parameters
+''       ID: cog ID
+''           0..7: coginit, otherwise cognew (may fail)
+''     code: address of code fragment (4n)
+''     data: cognew/coginit parameter (4n)
+''
+'' result
+''     == 0: [ABORT] thread creation failed (cognew only)
+''     <> 0: thread/cog ID + 1
+
+  ifnot (ID >> 3)
+    coginit(ID++, code, data)
+  elseifnot ID := cognew(code, data) + 1
+    abort
+  return ID
+
+DAT
diff --git a/source/boing/boing-bel-driver.spin b/source/boing/boing-bel-driver.spin
index 9046b16..622fb5a 100644
Binary files a/source/boing/boing-bel-driver.spin and b/source/boing/boing-bel-driver.spin differ
diff --git a/source/boing/boing-bel.spin b/source/boing/boing-bel.spin
index c34ba91..cdb4586 100644
Binary files a/source/boing/boing-bel.spin and b/source/boing/boing-bel.spin differ
diff --git a/source/boing/boing-reg.spin b/source/boing/boing-reg.spin
index 9882c19..f1fe188 100644
Binary files a/source/boing/boing-reg.spin and b/source/boing/boing-reg.spin differ