The files contained in this .ZIP file are broken down as follows:

README.TXT - this file

NETSPEC.TXT - Network Spec/overview.

NETSW1.GIF - Data flow for Network Station

NETSW2.GIF - Data flow for DNOS Network Server

NETSW3.GIF - Data flow for OS9 Parallel Link Server

DOS/ - DragonDOS ASCII assembler/BASIC files in support of OS9 network:

DOSERVER.ASC - 6809 m/code fixed layer loadable at $E000. Provides parallel link IO
and packet services, OS9 parallel link requests and partial DragonDOS extender.
Assumed loaded prior to network starting. DASM assembler format.

NETOS9.ASC - 6809 m/code OS9 interface layer converting OS9 network IO requests
into calls into the OS9 DOSERVER layer. DASM assembler format. Loaded via
SERV.ASC, called via packet jump table in SERVER.ASC.

NETUDF.ASC - 6809 m/code OS9 interface layer converting any user defined IO
requests into parallel link requests for the DOSERVER layer. DASM assembler format.
Load & call as per NETOS9.

BOOTLD.ASC - 6809 m/code app for requesting DOS+Extender load from OS9 server

OS9/ - OS9 ASCII assembler files:

NBFDEFS - assembler include file for network managers and drivers.

NBF.A - Network Block File Manager. Provides OS9 I/O functions for a network station.
NET6850.A - NBF device driver for MC6850 ACIA.
NR0.A - sample NBF device descriptor for a server device named /R0.
NBOOT.A - Network Boot System module. Comprises cut down packet drivers to issue
DragonDOS read sector network requests in order to load the OS9Boot file from a
floppy disk.
NETIME.A - Network utility to read the system clock from the server and update the
station's own clock with it.
SYSGO.A - Replacement module, initializes devices, calls NETIME and LOGIN
commands.
NDISK.A - RBF device driver issuing DragonDOS read sector network requests to
assist in development only.

SBF.A - Sequential Block File Manager. Simple file manager used to pass block
read/writes onto a parallel driver.
SBF_PIA21.A - Device driver for SBF. Utilises the MC6821 PIA to perform block
read/writes to/from memory.
SBF_P1.A - Descriptor for SBF.
PARALLEL_COMMON - assembler include file defining parallel link packet requests.
NET_SERV.A - Parallel link server. Utility for monitoring a parallel port (using SBF),
reading parallel link packets and distributing them to utility modules for processing.
OS9NETIO.A - Net_Serv helper module for processing OS9 I/O parallel packet requests.
OS9NETUDF.A - Net_Serv helper module for processing OS9 User Defined parallel
packet requests. 
dnosnetio6.a - Net_Serv helper module for processing DragonDOS sector read/write requests
nboot.a - Net_Serv helper module for processing request to download DOS+Extender

JRB 20/12/96, 08/03/15
