From: K6N (Brian Raw) Subject: DFS Image Utility These images are sequential file copies track by track of a DFS disk, so if a full disk is copied then they will be :- 100K 40T ssd 200K 40T dsd 200K 80T ssd 400K 80T dsd When making copies of double sided disks the tracks are interleaved ie side0 track0 sectors 0-9 side2 track0 sectors 0-9 side0 track1 sectors 0-9 side2 track1 sectors 0-9 ect. The program will also allow partial disks to be copied, that is, those tracks that are used though interleaving is not posible if you do. Why! The intention is to get these onto a PC harddisk, if nothing else, for long term storage. If you ever get onto the internet you will find some of these files available for downloading on the Acorn.8bs site though what anyone stumbling on these is supposed to do with them is anybody's guess. There are several BBC B emulators for the PC (emu1-7) that can use these files directly but they do leave a lot to be desired. Another problem causing me some concern lately is the ever decreasing availability of 720K disks not to mention 360K disks, I reckon that by the new millenium the 720K disk will be all but extinct, a problem that needs looking at now!, who cares if my beeb gets its knickers in a twist about the date? An overview of a possible solution. What we need is something like a serial link to a PC, for instance, that is in server mode and will respond to commands coming down the serial line to act on the image files, sending any requested data back to the beeb loading directly to memory any programs requested. So then we might have something like this on the hard disk:# C:/ bbclib
Initially the drive directory would be empty, the server giving a suitable response to any * commands. Then you might copy/insert a disk from the library into a drive directory, a *. command then would read the first 512 bytes (2 sectors) of the file which contains the catalogue information for that disk image etc. None of these ideas have left the drawing board yet so any input is welcome. I think the server software would be best written in 'FORTH' as this has a clear standard to work to, that way it should run on any machine PC,MAC,ARCHI. Font load & save commands ========================= J.G.Harston - 20-Nov-1996 *CLoad <afsp> (<char>/X) Loads in a set of character definitions, starting at the character specified in hexadecimal, or character &80 (128) if not. If the 'X' parameter is given, or the file has a load address of &FFFFF7xx (ie is file-typed to &FF7), then the file is loaded as an Archimedes-type BBC font file. V1.03 *CSave <fsp> <start char> <end char> (X) Saves a set of character definitions, as specified by the given parameters in hexadecimal. If the 'X' parameter is given, then the font is saved as groups of ten bytes containing the whole VDU23 sequence and the file has the load address set to &FFFFF700 and the execution address to &FFFFFFFF. This saves it as an Archimedes-type BBCfont file. V1.03 *Explode (ON|OFF) Explodes the character set and allows all the characters to be defined. *Explode on its own just does the same as *FX20,6, ie explodes the characters.*Explode ON explodes the character set and sets up a Break Intercept to re- explode the set on Break. *Explode OFF disconnects this Break intercept. The command exits by re-entering the current language to take account of thechange in PAGE. On a Tube system or a Master series, the command is ignored, as the character set is already fully exploded. Code resides at &131 to &13C. Function Keystrip Printing ========================== J.G.Harston, 20-Oct-1997 The following is a collection of programs to print out various function keystrips. On running them, they ask for the number of copies to print. MesgKeys also asks which keyboard layout to print. The programs are: EDWKeys EDWORD INTERke INTERWORD EDITKey EDIT TelKeys ABZ Teletext Editor MesgKey 8BS Messaging System Knights Tour Programmed by C.J.Richardson. The object of the game is to land on all of the yellow squares in the grid by moving the 'X' onto each of the squares. You may only move in the same manner as a Knight in Chess (L shapes).The program will not let you make an illegal move. To start, move the large 'X' to wherever you want on the grid using theARROW KEYS. Press RETURN. Move again using the ARROW KEYS. This time a smallflashing 'x' shows you where you are onthe grid, the large 'X' stays behind toshow you where your last starting pointwas. Pressing RETURN again will 'land' you on the square the small 'x' is over. The small 'x' then turns into a large 'X' and the previous large 'X' turns into a space. Repeat this until all of the yellow blocks have gone. Go back through your previous moves by pressing 'B' right up to where you started. Save the game state to disc by pressing 'S'. Reload a saved game state by pressing 'L'. When choosing to load or save, you are shown a catalogue of the disc. Enter a filename or just press RETURN to use the default name of KniDat. Press 'R' to restart the game if you get into a hopeless tangle. Press 'D' for a demo of the presently loaded game. All of the moves are re-played. The screen is reset and a flashing 'X' retraces your steps.
PROGRAM: TNC DRIVER
From: E3E (David) Subject: Terminal I use the Terminal ROM in the Master to fire up a tiny-2 TNC or Packet Radio Modem, this uses amateur radio as a kind of internet. I have found the Terminal software to be better than any other I have found up to now. For any other "ham" using the tiny-2, I have a small header program to set up the soft keys with the most useful commands. I then used the Master CMOS clock to set up the Time and date on the TNC (no more "Clock not set" errors). The "DA yymmddhhmm" that sets the date for the TNC is taken in the right order from TIME$, and spooled to a file named Date, this is then *EXECed from key9 after Terminal is entered. Key9 is used by the RS423 so cannot be used in Terminal mode. f0 CONVerse f1 COMmand f2 MHeard f3 Monitor on f4 Monitor Off f5 Connect GB7??? f6 Connect GB7? f7 Connect GB7??? f8 Disconnect f9 Not in use Is how I set up the f keys . Where GB7??? is a NODE or BBS. Change the f keys to the calls of your local BBS or NODES. To save a message from a BBS etc. press SHIFT/f1 (command mode) and at the prompt = *SPOOL <file name> press <RETURN> to change to Terminal mode, SHIFT/f6 can be used to toggle the spool on/off. Don't forget to close the file with *SPOOL from command mode (SHIFT/f1 again). To send a message, use EDIT. The first line must be a <RETURN>, save it using <file name>. Connect to your BBS and depending on your BBS commands, when you are ready to send your message press SHIFT/f1 and at the prompt = *EXEC <file name> .The <RETURN> on the first line will change the Master to Terminal mode and off will go your message. You can type your message using VIEW but you will send strange controls not liked by your TNC or BBS. I added 32 to the year so that leap years will be correct (sorry Chris) after 1999. ie. 1968+32 on. If you have lost or never had a Terminal key strip SHIFT and CTRL are both the same so we have SHIFT + f0 Clear screen f1 Command mode f2 nothing f3 Printer on f4 Printer off f5 printer toggle f6 Spool toggle f7 nothing f8 local/line f9 long/short Break Don't worry about f8 or f9 if you are only using a Packet Radio TNC. More may be found in part 2 of the Reference manual U.2 to U.5-16 . So if you have A Tiny-2 and a Master 128 Try TncDvr . With Best Wishes from David.
MANUAL FOR RWSHEILA (6502 Machine code)
This file describes the program
RWSHEILA which should speed up hardware
accessing from the 2nd processor and
from the IO processor itself via the
approved OSbyte call mechanism.
The manual is (C)1998 SPROW and
software is (C)1997 SPROW
At any command line prompt,eg.the BASIC
command prompt '>' type *RWSHEILA
The program will then install itself in
to page &C00 (the CHR$ defn buffer on
the BBC and Electron,or Econet
workspace on the Master) where it will
wait for any *FX151 (write to Sheila)
attempts either from the 2nd processor
or called from the IO processor.
Because the OS doesn't have to spend
time decoding the osbyte number and
jumping to the relevent section of the
OS,there should be a slight speed
increase for that osbyte.
KNOWN PROBLEMS/FUTURE ENHANCEMENTS-
No known problems.
NB.This patch MUST be run in the IO
processor,so it's filestamp is
V1.00 First release version,in response
to a question about the Tube OS