DOS Function Index - Quick Reference Subset

 All DOS Fns       25H Set INT Vector 3cH Create File   4eH Find File/GetInfo
 Service Groups    2aH Get Sys Date   3dH Open File     4fH Find Next File
 DOS Interrupts    2bH Set Sys Date   3eH Close File    50H Set Cur PSP
                   2cH Get Sys Time   3fH Read File     51H Get Cur PSP
 00H Terminate     2dH Set Sys Time   40H Write File    52H List Of Lists
 01H Kybd Input    2eH Set Verify     41H Delete File   54H Get Verify
 02H Display Char  2fH Get DTA        42H Move File Ptr 56H Rename/Move File
 05H Prn Output    30H Get Version    43H File Attrib   57H Time/Date File
 06H Console I/O   31H TSR            44H IOCTL         58H MemAlloc Strategy
 07H NoEcho RawInp 32H Get DPB        45H Dup Handle    59H Get Err Info
 08H NoEcho Inp    3300H Get BreakLvl 46H Redir Handle  5aH Create Uniq File
 09H Display Text  3301H Set BreakLvl 47H Get Dflt Dir  5bH Create New File
 0aH Bufrd Input   3305H Get Boot Drv 48H Mem Alloc     5cH Lock File
 0bH Get InpStatus 34H Get InDOS      49H Mem Free      5eH Network Misc
 0cH Clear & Input 35H Get INT Vector 4aH Mem Resize    5fH Network Redirect
 0dH Reset Disk    36H Disk Size/Free 4bH Exec          65H National Lang Fns
 0eH Set Dflt Disk 39H MkDir          4cH Terminate     67H Set Handle Cnt
 19H Get Dflt Disk 3aH RmDir          4dH Get Exit Code 68H Commit File Data
 1aH Set DTA       3bH ChDir                            6cH Open/Create File
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