INT 21 - European MSDOS 4.0 - "CREATMEM" - CREATE A SHARED MEMORY AREA
AX = 8400h
BX = size in bytes (0000h = 65536)
CX = flags
bit 6: zero-initialize segment
DS:DX -> ASCIZ name (must begin with "\SHAREMEM\")
Return: CF clear if successful
AX = segment address of shared memory global object
CF set on error
AX = error code (06h,08h) (see AH=59h)
Desc:   create an area of memory which may be accessed by multiple processes
Notes:  shared memory objects are created as special files (thus the
restriction on the name)
on successful creation, the reference count is set to 1
SeeAlso: AX=8402h,INT 15/AX=DE19h

See also: 218401

218400 - European MSDOS 4.0 - "CREATMEM" - CREATE A SHARED MEMORY AREA