Int E0  - Real/32 - "n_logon" - Log Onto A Server                          [O]

   CL = 40h
   DS:DX -> LPB (see #3767)

Return: AX = status (0000h,00FFh,07FFh,0DFFh,0EFFh,FFFFh) (see #3696)
   may destroy SI,DI,DS???

See Also: INT E0/CL=41h

Format of REAL/32 Logon/Logoff Parameter Block:
Offset Size    Description (Table 3767)
 00h   BYTE    node ID
 01h  8 BYTEs  password for server access
 09h   DWORD   -> process descriptor of process to be logged on (see #3768)

Format of REAL/32 Process Descriptor:
Offset Size    Description (Table 3768)
 00h   WORD    offset of next entry in current descriptor list
 02h   WORD    offset of thread list
 04h   BYTE    current processor status (see #3769)
 05h   BYTE    priority
 06h   WORD    runtime flags (see #3770)
 08h  8 BYTEs  process name
 10h   WORD    segment of User Data Area (256 or 352 bytes)
 12h   BYTE    current default disk drive
 13h   BYTE    drive from which process was loaded
 14h   WORD    reserved (0)
 16h   WORD    offset of memory descriptor list for memory owned by process
 18h  6 BYTEs  reserved
 1Eh   WORD    offset of process descriptor for parent process
       0000h if parent has already terminated
 20h   BYTE    number of default console
 21h   BYTE    number of default AUX device
 22h  2 BYTEs  reserved
 24h   BYTE    number of default list device
 25h   BYTE    reserved
 26h   WORD    flags (see #3771)
 28h 12 BYTEs  reserved
 34h   WORD    offset of memory page allocation root
 36h 22 BYTEs  reserved

See Also: #3767

(Table 3769)
Values for REAL/32 processor status:
 00h   process is ready to run
 01h   process is polling a device
 02h   delaying for a number of ticks
 03h   in swap list
 04h   terminating
 05h   asleep
 06h   waiting to read a message from a queue
 07h   waiting to write a message
 08h   waiting on system flag or semaphore
 09h   waiting to attach to an I/O device
 0Ah   waiting on sync block
 0Bh   waiting for system flag or semaphore with timeout
 0Ch   forced dispatch

See Also: #3768

Bitfields for REAL/32 process flags:
Bit(s) Description (Table 3770)
 0 system process
 1 do not terminate
 2 special rsp process
 3 from process descriptor table
 14-4  unused???
 15    uses math coprocessor

See Also: #3768,#3771

Bitfields for REAL/32 secondary flags:
Bit(s) Description (Table 3771)
 0 suspend when in background
 1 ???
 2 in foreground
 3 enable APPEND processing on file opens
 4 Ctrl-C was typed
 5 Ctrl-C will reset disk system
 6 OK to read locked record
 7 ???
 8 do not perform banking

See Also: #3768,#3770

(Table 3696)
Values for REAL/32 "N_LOGON" status:
 0000h successful
 00FFh server could not create shadow process
 07FFh incorrect password
 0CFFh not logged into specified server
 0DFFh process already logged onto 16 servers,
   LPB process not attached to network
 0EFFh physical transmission prevented message or response from getting thru
   network error during logoff
 FFFFh calling process not attached to network