Int 14 Fn 0C  - Mbbios Paccom Support - Buffer Management                  [S]

   AH = 0Ch
   ES = segment of buffer to free, or 0000h to allocate new buffer

Return: ES = segment of allocated buffer (if ES=0000h on entry)

Note:  the PACCOM version of MBBIOS uses only ES as buffer address for
     AH=0Ah and AH=0Bh

See Also: AH=0Ah"MBBIOS",AH=0Bh"MBBIOS"