Home » CEEFAX disks » telesoftware16.adl » 02-07-89/T\Echo
02-07-89/T\Echo
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » CEEFAX disks » telesoftware16.adl |
| Filename: | 02-07-89/T\Echo |
| Read OK: | ✔ |
| File size: | 2B15 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
Duplicates
There is 1 duplicate copy of this file in the archive:
- CEEFAX disks » telesoftware11.adl » 11-12-88/T\ECHO
- CEEFAX disks » telesoftware16.adl » 02-07-89/T\Echo
File contents
Echoes
An Intelligent Boot system for the BBC micro with DFS
Introduction
Echoes is a simple front end to the BBC's DFS system. It is designed to
simplify the use of the DFS while providing access to increased file
information.
When Echoes is run, usually as a boot file, it reads the disc catalogue
and interrogates all the files on the disc to try and obtain more
information. Each file is listed on screen, together with the filename, a
file number and the access status of the file (locked (L) or unlocked (U))
and any extra data that can be obtained.
This extra data is actually the first REM statement - as in the case of
a BASIC program. Echoes loads the first sector of each file and looks for
the token 244 (&F4), which, in BASIC stands for REM. Echoes then stores
any characters between this token and the end of line token - 13 (&D) for
BASIC.
Although designed to be used mainly with BASIC Echoes is not confined to
BASIC. The tokens it looks for can be re-defined by running the program
TOKENS. This program will allow you to use any characters to represent the
start of the extra data e.g. "(" and ")". You could even use the same
character to mark both the start and end of the data e.g."-".
The idea behind this is that most programmers start their work with some
statement of the program e.g. REM Echoes Allan Kelly 22/12/87 - 5/2/88.
This can help distinguish progams on disc.
Assembling Echoes
To assemble Echoes 3 programs are needed, ECHOES, ADD and LINK. ECHOES is
the main code but most of the data and subroutines have been separated
into ADD since the program will not all fit in memory in one go.
Firstly ADD must be run. This will generate a list of variables in the
form of a spool file - called L.VARS. Once this has been spooled out ADD
will print a saving instruction which you must issue.
Once ADD has been run and the two files generated load ECHOES - DO NOT RUN
IT. First you must load the variables from ADD so that ECHOES knows where
to find it's data and subroutines. To do this use *EXEC L.VARS. Once done
run ECHOES. Like ADD this will print a saving instruction which you must
issue.
You should now have three extra files on your disc, L.DATA, L.CODE and
L.VARS. Now Chain LINK, this will link the DATA and CODE files and save
the final product as U.ECHOES - this can be renamed to whatever you like
by changing the saving instruction in LINK. Before running LINK ensure
that the source code for Echoes is not in directory U.
If you want you can now delete the L files, VARS, DATA and CODE can be
generated again if you need them. L.VARS however is needed if you wish to
change the token settings with the TOKENS program.
The Tokens program
THE tokens that Echoes looks for in a file can be changed. To do this load
the program TOKENS. Before running the program, add the file L.VARS
generated by ADD by typing *EXEC L.VARS to load the variables - don't
worry if you forget TOKENS will remind you.
Once you have done this TOKENS will ask for the filename Echoes is saved
under. Note: Enter the name of the machine code file NOT the assembly file
ECHOES.
Once this is done TOKENS will ask for the new start and end tokens. These
may be any character you wish and may even be the same character e.g.
letters may be head using a dash "- Letter to Fred -" or for files in
languages like Forth the tokens may be (and).
Using Echoes
Depending on how Echoes is saved, the two most common ways of loading it
will be, either:
1) As a boot file with Echoes called !BOOT and the disc boot option set
to *OPT4,2 or
2) As a general utility, held either on the work disc or a utilities disc
and called by the command *ECHOES
When Echoes has loaded, it will wait for a key to be pressed. This is to
enable the disc to be changed if need be, and/or for the brief
instructions to be read.
Once a key has been pressed, Echoes will read the disc catalogue and
interrogate the files on the disc for extra data i.e. the tokens in use.
Echoes will only find the extra data if it is contained in the first
sector.
The Main Screen
This screen displays all the files together with any information. A right
arrow points to the "Current File" on which all operations will be
performed. Using the up and down arrow keys allows any file to be selected
as the current file. Pressing shift with the up or down arrow will move
the current file pointer 5 files instead of one. The window will scroll to
show all files as they are needed.
Keys
In total Echoes responds to 17 keys. These are: up and down arrow; tab;
space bar; escape; star (*); shift; and the functions keys.
Typing * will move you to the bottom window of the main screen to await
your command. This will then be issued as an OSCLI command e.g. *CAT. Any
response by the command will be displayed in the main window and will
remain there until a key is pressed when, provided the key is not *, the
file list will return. If the key is * then Echoes will wait for another
command.
Space Bar is used to change disc. When Space is pressed you will be
prompted to insert a new disc and press space. You are then returned to
the start up screen as if you had reloaded Echoes - so you will have to
press space a third time. If you wish to use another drive you may still
use space to change disc. Before pressing space, switch to the new drive
as usual, i.e. *DRIVE 2, then press space but ignore the "Insert New
Disc", just press space three times.
TAB: Echoes has been designed with BASIC in mind. This is reflected in the
function of the TAB key. When pressed, Echoes will chain the current file,
just as if it had been chained from BASIC.
Each of the ten function keys has a special function:
f0 - Run MC: this will load and run the current file as if it was a
machine code file i.e. equivalent to typing *<filename>.
f1 - DUMP: this will dump the current file just as if the OS command *DUMP
had been used.
f2 - TYPE: this is similar to the OS command *TYPE, as usual it acts on
the current file. Unlike the OS *TYPE this TYPE will remove any control
characters so no damage will be done to the screen display. This is a
great advantage if you type the wrong file!
f3 - INFO: this has a similar effect to *INFO but unlike *INFO the data on
the current file is not displayed as an enigmatic list of numbers but as a
list of information with notes. Any extra data (i.e. REM statements) will
be displayed in full. At the bottom of the screen the message "Print ?
(Y/N)" will appear. Pressing Y will cause the information to be copied to
the printer while pressing N will return you to the main screen.
f4 - ACCESS: this will toggle the current file between locked and unlocked
with the main screen being updated.
f5 - RENAME: once selected a prompt will appear at the bottom of the main
screen requesting the new name for the current file. Note: you cannot
rename a locked file, you must first unlock it - f4.
f6 - DELETE: provided it is not locked, this will delete the current file,
before deleting Echoes will ask "Are You Sure ? (Y/N)", press Y to
continue and delete the file, N if you have selected the wrong file or
have changed your mind.
f7 - Load BASIC: this command is very similar to the TAB chain action, but
this will only load a BASIC program, it will not run it.
f8 - EXEC: this is like the OS command *EXEC. If a language has not been
allowed to initialise itself (i.e. Echoes has been loaded as a !BOOT file
), only * commands will be recognised.
f9 - PRINT: as you might expect, this will print out the list of files as
they are displayed on screen with upto 66 characters of extra data i.e.
presuming an 80 character printer, 9 for name, 2 for number, 1 for lock
status and two spaces thus leaving 66 characters for the REM. This option
is very useful if you wish to have a list of files on the outside of your
disc envelope.
ESCAPE - normally pressing the Escape Key will cause Echoes to prompt
"Abort ? (Y/N)", as usual if you do wish to abort press Y otherwise press
N. Echoes will exit with the error "Echoes Exited".
Errors
If an error - apart from a user generated Escape detailed above - occurs
during the running of Echoes e.g. Sector not found, the error message
together with the error number will be displayed in the bottom window.
Echoes will beep and ask "Acknowledge?", this means Echoes wants you to
recognise that a error has occured, to do this just press a key. If you do
not do this then after about 25 seconds Echoes will beep again and hence
forth beep every 5 seconds until you acknowledge the error by pressing a
key. Once an error has been acknowledged Echoes will continue, if you wish
to abort Echoes you will have to press Escape as normal.
Problems With Echoes
Echoes cannot cope with every contingency, it can cope with most though.
Perhaps the major limitation on Echoes is that it does not work with
either the ADFS or NFS system. This is because Echoes reads the directory
track directly and then reads the first sector of the files by accessing
the disc controller - usually the 8271.
However, Echoes will work with non-Acorn DFS's - my own is a Watford
Double Density System using a 1770 controller and this work fine. I have
also used Echoes successfully on a genuine Acorn DFS with 8271 - DNFS
actually - and on a Master 128 in DFS mode. One problem I have come across
with Echoes is when using "auto disc sensing system", i.e. systems which
automatically detect whether a disc is 80 or 40 track, or single or double
density. This problem is simply cured: ensure that you access the disc
before running Echoes so the system knows which type of disc to expect
(e.g. use *CAT).
Occasionally when running Echoes the screen may become corrupt, to clear
the screen pretend to issue and OS command but press return i.e. type *
<RETURN>.
Sometimes you may find that a file you would expect to have "No Data" has
some extra data. Usually if you examine the file you will find that it is
less than 1 sector (256 bytes) long. In this case the problem is with the
DFS. When saving, the DFS buffers everything and saves in chunks of 256
bytes - one page to the processor, one sector on the disc - this data is
usually buffered in the same place all the time but the DFS never cleans
this space. Consequently a short file may be saved in the disc with some
data from another file. Normally the DFS knows about this and ignores the
extra data but Echoes looks at whole sectors and ignores the length of the
file - for speed - hence data from an old file may be displayed.
Another reason why data messages may appear unexpectedly is if data file,
machine code programs, or other languages have the start and end token
contained within them by coincidence. To cut down the chances of such a
coincidence, if Echoes only finds a starting token without a matching end
token it assumes that this is not a genuine remark and ignores the
statement. Finally, if Echoes is used on a double catalogue disc, only the
first catalogue (i.e. the first 31 files) will be recognized.
00000000 45 63 68 6f 65 73 0d 0d 41 6e 20 49 6e 74 65 6c |Echoes..An Intel|
00000010 6c 69 67 65 6e 74 20 42 6f 6f 74 20 73 79 73 74 |ligent Boot syst|
00000020 65 6d 20 66 6f 72 20 74 68 65 20 42 42 43 20 6d |em for the BBC m|
00000030 69 63 72 6f 20 77 69 74 68 20 44 46 53 20 20 0d |icro with DFS .|
00000040 0d 49 6e 74 72 6f 64 75 63 74 69 6f 6e 0d 0d 45 |.Introduction..E|
00000050 63 68 6f 65 73 20 69 73 20 61 20 73 69 6d 70 6c |choes is a simpl|
00000060 65 20 66 72 6f 6e 74 20 65 6e 64 20 74 6f 20 74 |e front end to t|
00000070 68 65 20 42 42 43 27 73 20 44 46 53 20 73 79 73 |he BBC's DFS sys|
00000080 74 65 6d 2e 20 49 74 20 69 73 20 64 65 73 69 67 |tem. It is desig|
00000090 6e 65 64 20 74 6f 0d 73 69 6d 70 6c 69 66 79 20 |ned to.simplify |
000000a0 74 68 65 20 75 73 65 20 6f 66 20 74 68 65 20 44 |the use of the D|
000000b0 46 53 20 77 68 69 6c 65 20 70 72 6f 76 69 64 69 |FS while providi|
000000c0 6e 67 20 61 63 63 65 73 73 20 74 6f 20 69 6e 63 |ng access to inc|
000000d0 72 65 61 73 65 64 20 66 69 6c 65 0d 69 6e 66 6f |reased file.info|
000000e0 72 6d 61 74 69 6f 6e 2e 0d 0d 57 68 65 6e 20 45 |rmation...When E|
000000f0 63 68 6f 65 73 20 69 73 20 72 75 6e 2c 20 75 73 |choes is run, us|
00000100 75 61 6c 6c 79 20 61 73 20 61 20 62 6f 6f 74 20 |ually as a boot |
00000110 66 69 6c 65 2c 20 69 74 20 72 65 61 64 73 20 74 |file, it reads t|
00000120 68 65 20 64 69 73 63 20 63 61 74 61 6c 6f 67 75 |he disc catalogu|
00000130 65 0d 61 6e 64 20 69 6e 74 65 72 72 6f 67 61 74 |e.and interrogat|
00000140 65 73 20 61 6c 6c 20 74 68 65 20 66 69 6c 65 73 |es all the files|
00000150 20 6f 6e 20 74 68 65 20 64 69 73 63 20 74 6f 20 | on the disc to |
00000160 74 72 79 20 61 6e 64 20 6f 62 74 61 69 6e 20 6d |try and obtain m|
00000170 6f 72 65 0d 69 6e 66 6f 72 6d 61 74 69 6f 6e 2e |ore.information.|
00000180 20 45 61 63 68 20 66 69 6c 65 20 69 73 20 6c 69 | Each file is li|
00000190 73 74 65 64 20 6f 6e 20 73 63 72 65 65 6e 2c 20 |sted on screen, |
000001a0 74 6f 67 65 74 68 65 72 20 77 69 74 68 20 74 68 |together with th|
000001b0 65 20 66 69 6c 65 6e 61 6d 65 2c 20 61 0d 66 69 |e filename, a.fi|
000001c0 6c 65 20 6e 75 6d 62 65 72 20 61 6e 64 20 74 68 |le number and th|
000001d0 65 20 61 63 63 65 73 73 20 73 74 61 74 75 73 20 |e access status |
000001e0 6f 66 20 74 68 65 20 66 69 6c 65 20 28 6c 6f 63 |of the file (loc|
000001f0 6b 65 64 20 28 4c 29 20 6f 72 20 75 6e 6c 6f 63 |ked (L) or unloc|
00000200 6b 65 64 20 28 55 29 29 0d 61 6e 64 20 61 6e 79 |ked (U)).and any|
00000210 20 65 78 74 72 61 20 64 61 74 61 20 74 68 61 74 | extra data that|
00000220 20 63 61 6e 20 62 65 20 6f 62 74 61 69 6e 65 64 | can be obtained|
00000230 2e 20 0d 0d 54 68 69 73 20 65 78 74 72 61 20 64 |. ..This extra d|
00000240 61 74 61 20 69 73 20 61 63 74 75 61 6c 6c 79 20 |ata is actually |
00000250 74 68 65 20 66 69 72 73 74 20 52 45 4d 20 73 74 |the first REM st|
00000260 61 74 65 6d 65 6e 74 20 2d 20 61 73 20 69 6e 20 |atement - as in |
00000270 74 68 65 20 63 61 73 65 20 6f 66 0d 61 20 42 41 |the case of.a BA|
00000280 53 49 43 20 70 72 6f 67 72 61 6d 2e 20 45 63 68 |SIC program. Ech|
00000290 6f 65 73 20 6c 6f 61 64 73 20 74 68 65 20 66 69 |oes loads the fi|
000002a0 72 73 74 20 73 65 63 74 6f 72 20 6f 66 20 65 61 |rst sector of ea|
000002b0 63 68 20 66 69 6c 65 20 61 6e 64 20 6c 6f 6f 6b |ch file and look|
000002c0 73 20 66 6f 72 0d 74 68 65 20 74 6f 6b 65 6e 20 |s for.the token |
000002d0 32 34 34 20 28 26 46 34 29 2c 20 77 68 69 63 68 |244 (&F4), which|
000002e0 2c 20 69 6e 20 42 41 53 49 43 20 73 74 61 6e 64 |, in BASIC stand|
000002f0 73 20 66 6f 72 20 52 45 4d 2e 20 45 63 68 6f 65 |s for REM. Echoe|
00000300 73 20 74 68 65 6e 20 73 74 6f 72 65 73 0d 61 6e |s then stores.an|
00000310 79 20 63 68 61 72 61 63 74 65 72 73 20 62 65 74 |y characters bet|
00000320 77 65 65 6e 20 74 68 69 73 20 74 6f 6b 65 6e 20 |ween this token |
00000330 61 6e 64 20 74 68 65 20 65 6e 64 20 6f 66 20 6c |and the end of l|
00000340 69 6e 65 20 74 6f 6b 65 6e 20 2d 20 31 33 20 28 |ine token - 13 (|
00000350 26 44 29 20 66 6f 72 0d 42 41 53 49 43 2e 0d 0d |&D) for.BASIC...|
00000360 41 6c 74 68 6f 75 67 68 20 64 65 73 69 67 6e 65 |Although designe|
00000370 64 20 74 6f 20 62 65 20 75 73 65 64 20 6d 61 69 |d to be used mai|
00000380 6e 6c 79 20 77 69 74 68 20 42 41 53 49 43 20 45 |nly with BASIC E|
00000390 63 68 6f 65 73 20 69 73 20 6e 6f 74 20 63 6f 6e |choes is not con|
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000003b0 54 68 65 20 74 6f 6b 65 6e 73 20 69 74 20 6c 6f |The tokens it lo|
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000003d0 65 2d 64 65 66 69 6e 65 64 20 62 79 20 72 75 6e |e-defined by run|
000003e0 6e 69 6e 67 20 74 68 65 20 70 72 6f 67 72 61 6d |ning the program|
000003f0 0d 54 4f 4b 45 4e 53 2e 20 54 68 69 73 20 70 72 |.TOKENS. This pr|
00000400 6f 67 72 61 6d 20 77 69 6c 6c 20 61 6c 6c 6f 77 |ogram will allow|
00000410 20 79 6f 75 20 74 6f 20 75 73 65 20 61 6e 79 20 | you to use any |
00000420 63 68 61 72 61 63 74 65 72 73 20 74 6f 20 72 65 |characters to re|
00000430 70 72 65 73 65 6e 74 20 74 68 65 0d 73 74 61 72 |present the.star|
00000440 74 20 6f 66 20 74 68 65 20 65 78 74 72 61 20 64 |t of the extra d|
00000450 61 74 61 20 65 2e 67 2e 20 22 28 22 20 61 6e 64 |ata e.g. "(" and|
00000460 20 22 29 22 2e 20 59 6f 75 20 63 6f 75 6c 64 20 | ")". You could |
00000470 65 76 65 6e 20 75 73 65 20 74 68 65 20 73 61 6d |even use the sam|
00000480 65 0d 63 68 61 72 61 63 74 65 72 20 74 6f 20 6d |e.character to m|
00000490 61 72 6b 20 62 6f 74 68 20 74 68 65 20 73 74 61 |ark both the sta|
000004a0 72 74 20 61 6e 64 20 65 6e 64 20 6f 66 20 74 68 |rt and end of th|
000004b0 65 20 64 61 74 61 20 65 2e 67 2e 22 2d 22 2e 0d |e data e.g."-"..|
000004c0 0d 54 68 65 20 69 64 65 61 20 62 65 68 69 6e 64 |.The idea behind|
000004d0 20 74 68 69 73 20 69 73 20 74 68 61 74 20 6d 6f | this is that mo|
000004e0 73 74 20 70 72 6f 67 72 61 6d 6d 65 72 73 20 73 |st programmers s|
000004f0 74 61 72 74 20 74 68 65 69 72 20 77 6f 72 6b 20 |tart their work |
00000500 77 69 74 68 20 73 6f 6d 65 0d 73 74 61 74 65 6d |with some.statem|
00000510 65 6e 74 20 6f 66 20 74 68 65 20 70 72 6f 67 72 |ent of the progr|
00000520 61 6d 20 65 2e 67 2e 20 52 45 4d 20 45 63 68 6f |am e.g. REM Echo|
00000530 65 73 20 41 6c 6c 61 6e 20 4b 65 6c 6c 79 20 32 |es Allan Kelly 2|
00000540 32 2f 31 32 2f 38 37 20 2d 20 35 2f 32 2f 38 38 |2/12/87 - 5/2/88|
00000550 2e 0d 54 68 69 73 20 63 61 6e 20 68 65 6c 70 20 |..This can help |
00000560 64 69 73 74 69 6e 67 75 69 73 68 20 70 72 6f 67 |distinguish prog|
00000570 61 6d 73 20 6f 6e 20 64 69 73 63 2e 0d 0d 41 73 |ams on disc...As|
00000580 73 65 6d 62 6c 69 6e 67 20 45 63 68 6f 65 73 0d |sembling Echoes.|
00000590 0d 54 6f 20 61 73 73 65 6d 62 6c 65 20 45 63 68 |.To assemble Ech|
000005a0 6f 65 73 20 33 20 70 72 6f 67 72 61 6d 73 20 61 |oes 3 programs a|
000005b0 72 65 20 6e 65 65 64 65 64 2c 20 45 43 48 4f 45 |re needed, ECHOE|
000005c0 53 2c 20 41 44 44 20 61 6e 64 20 4c 49 4e 4b 2e |S, ADD and LINK.|
000005d0 20 45 43 48 4f 45 53 20 69 73 0d 74 68 65 20 6d | ECHOES is.the m|
000005e0 61 69 6e 20 63 6f 64 65 20 62 75 74 20 6d 6f 73 |ain code but mos|
000005f0 74 20 6f 66 20 74 68 65 20 64 61 74 61 20 61 6e |t of the data an|
00000600 64 20 73 75 62 72 6f 75 74 69 6e 65 73 20 68 61 |d subroutines ha|
00000610 76 65 20 62 65 65 6e 20 73 65 70 61 72 61 74 65 |ve been separate|
00000620 64 0d 69 6e 74 6f 20 41 44 44 20 73 69 6e 63 65 |d.into ADD since|
00000630 20 74 68 65 20 70 72 6f 67 72 61 6d 20 77 69 6c | the program wil|
00000640 6c 20 6e 6f 74 20 61 6c 6c 20 66 69 74 20 69 6e |l not all fit in|
00000650 20 6d 65 6d 6f 72 79 20 69 6e 20 6f 6e 65 20 67 | memory in one g|
00000660 6f 2e 0d 0d 46 69 72 73 74 6c 79 20 41 44 44 20 |o...Firstly ADD |
00000670 6d 75 73 74 20 62 65 20 72 75 6e 2e 20 54 68 69 |must be run. Thi|
00000680 73 20 77 69 6c 6c 20 67 65 6e 65 72 61 74 65 20 |s will generate |
00000690 61 20 6c 69 73 74 20 6f 66 20 76 61 72 69 61 62 |a list of variab|
000006a0 6c 65 73 20 69 6e 20 74 68 65 0d 66 6f 72 6d 20 |les in the.form |
000006b0 6f 66 20 61 20 73 70 6f 6f 6c 20 66 69 6c 65 20 |of a spool file |
000006c0 2d 20 63 61 6c 6c 65 64 20 4c 2e 56 41 52 53 2e |- called L.VARS.|
000006d0 20 4f 6e 63 65 20 74 68 69 73 20 68 61 73 20 62 | Once this has b|
000006e0 65 65 6e 20 73 70 6f 6f 6c 65 64 20 6f 75 74 20 |een spooled out |
000006f0 41 44 44 0d 77 69 6c 6c 20 70 72 69 6e 74 20 61 |ADD.will print a|
00000700 20 73 61 76 69 6e 67 20 69 6e 73 74 72 75 63 74 | saving instruct|
00000710 69 6f 6e 20 77 68 69 63 68 20 79 6f 75 20 6d 75 |ion which you mu|
00000720 73 74 20 69 73 73 75 65 2e 0d 0d 4f 6e 63 65 20 |st issue...Once |
00000730 41 44 44 20 68 61 73 20 62 65 65 6e 20 72 75 6e |ADD has been run|
00000740 20 61 6e 64 20 74 68 65 20 74 77 6f 20 66 69 6c | and the two fil|
00000750 65 73 20 67 65 6e 65 72 61 74 65 64 20 6c 6f 61 |es generated loa|
00000760 64 20 45 43 48 4f 45 53 20 2d 20 44 4f 20 4e 4f |d ECHOES - DO NO|
00000770 54 20 52 55 4e 0d 49 54 2e 20 46 69 72 73 74 20 |T RUN.IT. First |
00000780 79 6f 75 20 6d 75 73 74 20 6c 6f 61 64 20 74 68 |you must load th|
00000790 65 20 76 61 72 69 61 62 6c 65 73 20 66 72 6f 6d |e variables from|
000007a0 20 41 44 44 20 73 6f 20 74 68 61 74 20 45 43 48 | ADD so that ECH|
000007b0 4f 45 53 20 6b 6e 6f 77 73 20 77 68 65 72 65 0d |OES knows where.|
000007c0 74 6f 20 66 69 6e 64 20 69 74 27 73 20 64 61 74 |to find it's dat|
000007d0 61 20 61 6e 64 20 73 75 62 72 6f 75 74 69 6e 65 |a and subroutine|
000007e0 73 2e 20 54 6f 20 64 6f 20 74 68 69 73 20 75 73 |s. To do this us|
000007f0 65 20 2a 45 58 45 43 20 4c 2e 56 41 52 53 2e 20 |e *EXEC L.VARS. |
00000800 4f 6e 63 65 20 64 6f 6e 65 0d 72 75 6e 20 45 43 |Once done.run EC|
00000810 48 4f 45 53 2e 20 4c 69 6b 65 20 41 44 44 20 74 |HOES. Like ADD t|
00000820 68 69 73 20 77 69 6c 6c 20 70 72 69 6e 74 20 61 |his will print a|
00000830 20 73 61 76 69 6e 67 20 69 6e 73 74 72 75 63 74 | saving instruct|
00000840 69 6f 6e 20 77 68 69 63 68 20 79 6f 75 20 6d 75 |ion which you mu|
00000850 73 74 0d 69 73 73 75 65 2e 0d 0d 59 6f 75 20 73 |st.issue...You s|
00000860 68 6f 75 6c 64 20 6e 6f 77 20 68 61 76 65 20 74 |hould now have t|
00000870 68 72 65 65 20 65 78 74 72 61 20 66 69 6c 65 73 |hree extra files|
00000880 20 6f 6e 20 79 6f 75 72 20 64 69 73 63 2c 20 4c | on your disc, L|
00000890 2e 44 41 54 41 2c 20 4c 2e 43 4f 44 45 20 61 6e |.DATA, L.CODE an|
000008a0 64 0d 4c 2e 56 41 52 53 2e 20 4e 6f 77 20 43 68 |d.L.VARS. Now Ch|
000008b0 61 69 6e 20 4c 49 4e 4b 2c 20 74 68 69 73 20 77 |ain LINK, this w|
000008c0 69 6c 6c 20 6c 69 6e 6b 20 74 68 65 20 44 41 54 |ill link the DAT|
000008d0 41 20 61 6e 64 20 43 4f 44 45 20 66 69 6c 65 73 |A and CODE files|
000008e0 20 61 6e 64 20 73 61 76 65 0d 74 68 65 20 66 69 | and save.the fi|
000008f0 6e 61 6c 20 70 72 6f 64 75 63 74 20 61 73 20 55 |nal product as U|
00000900 2e 45 43 48 4f 45 53 20 2d 20 74 68 69 73 20 63 |.ECHOES - this c|
00000910 61 6e 20 62 65 20 72 65 6e 61 6d 65 64 20 74 6f |an be renamed to|
00000920 20 77 68 61 74 65 76 65 72 20 79 6f 75 20 6c 69 | whatever you li|
00000930 6b 65 0d 62 79 20 63 68 61 6e 67 69 6e 67 20 74 |ke.by changing t|
00000940 68 65 20 73 61 76 69 6e 67 20 69 6e 73 74 72 75 |he saving instru|
00000950 63 74 69 6f 6e 20 69 6e 20 4c 49 4e 4b 2e 20 42 |ction in LINK. B|
00000960 65 66 6f 72 65 20 72 75 6e 6e 69 6e 67 20 4c 49 |efore running LI|
00000970 4e 4b 20 65 6e 73 75 72 65 0d 74 68 61 74 20 74 |NK ensure.that t|
00000980 68 65 20 73 6f 75 72 63 65 20 63 6f 64 65 20 66 |he source code f|
00000990 6f 72 20 45 63 68 6f 65 73 20 69 73 20 6e 6f 74 |or Echoes is not|
000009a0 20 69 6e 20 64 69 72 65 63 74 6f 72 79 20 55 2e | in directory U.|
000009b0 20 0d 0d 49 66 20 79 6f 75 20 77 61 6e 74 20 79 | ..If you want y|
000009c0 6f 75 20 63 61 6e 20 6e 6f 77 20 64 65 6c 65 74 |ou can now delet|
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00002a30 6e 20 77 69 74 68 6f 75 74 20 61 20 6d 61 74 63 |n without a matc|
00002a40 68 69 6e 67 20 65 6e 64 0d 74 6f 6b 65 6e 20 69 |hing end.token i|
00002a50 74 20 61 73 73 75 6d 65 73 20 74 68 61 74 20 74 |t assumes that t|
00002a60 68 69 73 20 69 73 20 6e 6f 74 20 61 20 67 65 6e |his is not a gen|
00002a70 75 69 6e 65 20 72 65 6d 61 72 6b 20 61 6e 64 20 |uine remark and |
00002a80 69 67 6e 6f 72 65 73 20 74 68 65 0d 73 74 61 74 |ignores the.stat|
00002a90 65 6d 65 6e 74 2e 20 46 69 6e 61 6c 6c 79 2c 20 |ement. Finally, |
00002aa0 69 66 20 45 63 68 6f 65 73 20 69 73 20 75 73 65 |if Echoes is use|
00002ab0 64 20 6f 6e 20 61 20 64 6f 75 62 6c 65 20 63 61 |d on a double ca|
00002ac0 74 61 6c 6f 67 75 65 20 64 69 73 63 2c 20 6f 6e |talogue disc, on|
00002ad0 6c 79 20 74 68 65 0d 66 69 72 73 74 20 63 61 74 |ly the.first cat|
00002ae0 61 6c 6f 67 75 65 20 28 69 2e 65 2e 20 74 68 65 |alogue (i.e. the|
00002af0 20 66 69 72 73 74 20 33 31 20 66 69 6c 65 73 29 | first 31 files)|
00002b00 20 77 69 6c 6c 20 62 65 20 72 65 63 6f 67 6e 69 | will be recogni|
00002b10 7a 65 64 2e 0d |zed..|
00002b15 
02-07-89/T\Echo.m0
02-07-89/T\Echo.m1
02-07-89/T\Echo.m2
02-07-89/T\Echo.m4
02-07-89/T\Echo.m5
.