ol Register
  |   <A HREF="RR0C.HTM">$DE0C/56844/RR+12</A>      Modem Control Register
  |   <A HREF="RR0D.HTM">$DE0D/56845/RR+13</A>      Line Status Register (read only)
  |   <A HREF="RR0E.HTM">$DE0E/56846/RR+14</A>      Modem Status Register (read only)
  |   <A HREF="RR0F.HTM">$DE0F/56847/RR+15</A>      Scratch Pad Register
  |
  | Used KERNAL-vectors:
  |
  |   (Software is still under development, so vectors will change
  |    between releases.)
  |
  | <A HREF="RRMEM.HTM">Memory Maps</A>
  |
  +----