INT 21 - DOS 2+ - "CREAT" - CREATE OR TRUNCATE FILE
AH = 3CH
CX = file attribute
bit 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
DS:DX -> ASCIZ filename
Return: CF clear if successful
AX = file handle
CF set on error
AX = error code (03h,04h,05h) (see AH=59h)
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
SeeAlso: AH=3Dh,AH=5Ah,AH=5Bh,AH=93h

See also: 2116

213C - DOS 2+ - "CREAT" - CREATE OR TRUNCATE FILE