Int 50 Fn 0012  - PC Thuis Organizer Shell - Compare Memory                [l]

   AX = 0012h
   DS:SI -> source
   ES:DI -> destination
   CX = number of bytes to compare (0000h=until NUL string terminator???)

Return: AX = status
       0000h same
       FFFFh different

See Also: AX=0011h