Int 21 Fn 3C  - Dos 2+ - "creat" - Create Or Truncate File                 [D]

   AH = 3Ch
   CX = file attributes (see #1089)
   DS:DX -> ASCIZ filename

Return: CF clear if successful
       AX = file handle
   CF set on error
       AX = error code (03h,04h,05h) (see #1366 at AH=59h/BX=0000h)

Notes: if a file with the given name exists, it is truncated to zero length
   under the FlashTek X-32 DOS extender, the pointer is in DS:EDX
   DR DOS checks the system password or explicitly supplied password at
     the end of the filename against the reserved field in the directory
     entry before allowing access

See Also: AH=16h,AH=3Dh,AH=5Ah,AH=5Bh,AH=93h,INT 2F/AX=1117h

Bitfields for file attributes:
Bit(s) Description (Table 1089)
 0 read-only
 1 hidden
 2 system
 3 volume label (ignored)
 4 reserved, must be zero (directory)
 5 archive bit
 7 if set, file is shareable under Novell NetWare