DWLOAD Server

DWLOAD server implemented in Python (OpenSource, GPL v3 or above).

Connect your Dragon 32 into your PC and LOAD/SAVE basic listings.

Quickstart

~$ git clone https://github.com/6809/DwLoadServer.git
~$ cd DwLoadServer
~/DwLoadServer$ ./devshell.py run serial

features

• load/save files via DWLOAD
• on-the-fly converting ASCII BASIC listing (see below)
• dynamic "AUTOLOAD.DWL" (see below)
• backup all files on save
• Support USB Adapter and Becker TCP/IP Interface.

current state

Tested DWEEBS:

DWEEB	example	Description
DLOAD	DLOAD	Load AUTOLOAD.DWL (Used on Dragon startup)
SAVE	DLOAD"SAVE""MYFILE.BAS"	Save BASIC listing
RESAVE	DLOAD"RESAVE""MYFILE.BAS"	Save BASIC listing

Implemented DriveWire Transactions:

hex	dez	DW name	Description
$00	0	OP_NOP	NOP Transaction -> ignored
$01	1	OP_NAMEOBJ_MOUNT	Mount a file to a virtual drive number
$02	2	OP_NAMEOBJ_CREATE	(Does in this implementation the same as OP_NAMEOBJ_MOUNT)
$d2	210	OP_READEX	Send 256 bytes sector from the DWLOAD server to the client
$57	87	OP_WRITE	Write 256 bytes sector of data from the client into a file on the server

TODO

• enhance AUTOLOAD.DWL.py, see: http://archive.worldofdragon.org/phpBB3/viewtopic.php?f=5&t=4977
• compare checksum
• write unittests

pyscripts

There is a general machanism to generate DLOAD responses via Python:

• Store in server root a python script, e.g.: "FOO.BAR.py"
• DLOAD the file (without .py extension) on client, e.g.: DLOAD"FOO.BAR"

The script will be called via subprocess and it must write the Dragon DOS binary data back to stdout.

Currently, there is only one pyscript file: AUTOLOAD.DWL.py (see below)

dynamic "AUTOLOAD.DWL"

There exist a way to generate a dynamic DWLOAD menu. Just copy the file /dwload-demo-files/AUTOLOAD.DWL.py into your server root.

The pyscript reads the server root directory and list all files into the DLOAD menu. e.g. the server root looks like this:

/HOME/FOO/DWLOAD-FILES
  +--- AUTOLOAD.DWL.py
  +--- HEXVIEW.BAS
  +--- TEST.BAS
  \--- SAVE

The generated listing looks like this:

10 CLS
20 PRINT" *** DYNAMIC MENU ***  14:11:18"
30 PRINT"/HOME/FOO/DWLOAD-FILES"
40 PRINT" 0 - HEXVIEW.BAS"
50 PRINT" 1 - TEST.BAS"
60 PRINT" 2 - SAVE"
70 PRINT"PLEASE SELECT (X FOR RELOAD) !"
80 A$=INKEY$:IF A$="" GOTO 80
90 IF A$="X" THEN DLOAD
100 IF A$="0" THEN DLOAD"HEXVIEW.BAS"
110 IF A$="1" THEN DLOAD"TEST.BAS"
120 IF A$="2" THEN DLOAD"SAVE"
130 GOTO 10

s.: http://archive.worldofdragon.org/phpBB3/viewtopic.php?f=5&t=4977

You must only call DLOAD on you Dragon to get this menu. Because a DLOAD will request AUTOLOAD.DWL and the Python server will all .py and call AUTOLOAD.DWL.py if exist.

This feature make the following file:

| /dwload_server/hooks/dynamic_dwl.py | general API to 'pyscript' files | | /dwload_server/pyscripts/autoload_dwl.py | generates the DWLOAD menu |

on-the-fly converting ASCII BASIC listing

The server read/save ASCII BASIC listing and send/store them to the DWLOAD client on-the-fly. So you can edit listings on your PC and try them on your Dragon without any external conventions!

e.g.: save

10 PRINT"HELLO WORLD!"
DLOAD"SAVE""HELLO.BAS"
DWLOAD
!
OK

The server will create two files:

filename	format	description
HELLO.DWL	raw tokenized binary	Dragon DOS Binary Format data from the Dragon (256 Bytes padded)
HELLO.BAS	ASCII listing	on-the-fly converted ASCII BASIC listing

e.g. load (and execute):

DLOAD"HELLO.BAS"
!HELLO WORLD!
OK

(Note: the first ! is from DWLOAD ROM routine)

The server will read the HELLO.BAS ASCII listing and convert is on-the-fly to the needed Dragon DOS Binary Format and send this back to the Dragon.

This feature make the following files:

| /dwload_server/hooks/read_ascii.py | read ASCII listing and send as binary to client | | /dwload_server/hooks/save_ascii.py | save binary from client as ASCII on server |

installation

Clone sources and bootstrap via dev-shell, e.g.:

~$ git clone https://github.com/6809/DwLoadServer.git
~$ cd DwLoadServer
~/DwLoadServer$ ./devshell.py

...

Developer shell - DWLOAD Server - v0.4.0


Documented commands (use 'help -v' for verbose/'help <topic>' for details):

dev-shell commands
==================
fix_code_style      poetry   pytest     tox
list_venv_packages  publish  pyupgrade  update

DWLOAD Server Commands
======================
run

Uncategorized
=============
alias  help  history  macro  quit  set  shortcuts


(dwload_server) run --help
Usage: run [-h] [--root-dir ROOT_DIR] [--log-level {0, 10, 20, 30, 30, 40, 50, 50, 99, 100}] {becker, serial} ...

optional arguments:
  -h, --help            show this help message and exit
  --root-dir ROOT_DIR
  --log-level {0, 10, 20, 30, 30, 40, 50, 50, 99, 100}
                        Logging level: 10=DEBUG, 20=INFO, 30=WARNING, 40=ERROR, 50=CRITICAL/FATAL (default: 20)

Interface:
  {becker, serial}
    becker              Use the Becker interface
    serial              Use the serial interface

(dwload_server) run serial

You can also run as cli, e.g.: Start serial DWLOAD server:

~/DwLoadServer$ ./devshell.py run serial

History

• dev
  • ...tbc...
• 11.09.2022 - v0.5.0
  • Modernize project
  • Easier bootstrap via dev-shell
• 20.11.2014 - v0.4.0
  • dynamic AUTOLOAD.DWL via Python script
• 19.11.2014 - v0.3.0
  • Convert "ASCII BASIC listing" <-> "Dragon DOS Binary" on-the-fly while read/write
• 17.11.2014 - v0.2.0
  • Support Becker and Serial interface.
• 14.11.2014 - v0.1.0 - Create bootstrap file that work under linux and windows.
• 12.11.2014 - v0.0.1 - send a file works rudimentary
• 30.09.2014 - Idea was born: Forum post 11893

Links

Forum Thread (en)	worldofdragon.org
Forum Thread (de)	forum.classic-computing.de
PyPi	https://pypi.python.org/pypi/dwload_server/
Github	https://github.com/6809/DwLoadServer

some project related links:

• About DWLOAD: http://archive.worldofdragon.org/phpBB3/viewtopic.php?f=5&t=4964
• DWEEBS application Thread: http://archive.worldofdragon.org/phpBB3/viewtopic.php?f=5&t=4968
• Dragon 32/64 DriveWire Adapter: http://archive.worldofdragon.org/index.php?title=Dragon_32/64_Drivewire_Adapter
• Drivewire for dummies: http://archive.worldofdragon.org/index.php?title=Drivewire_for_dummies
• http://sourceforge.net/p/drivewireserver/wiki/DriveWire_Specification/
• http://sourceforge.net/p/drivewireserver/wiki/