27-01-89/Tmr\Inf

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27-01-89/Tmr\Inf

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 » telesoftware12.adl
Filename:	27-01-89/Tmr\Inf
Read OK:	✔
File size:	1F19 bytes
Load address:	0000
Exec address:	0000

Duplicates

There is 1 duplicate copy of this file in the archive:

CEEFAX disks » telesoftware12.adl » 27-01-89/Tmr\Inf
CEEFAX disks » telesoftware8.adl » 02-07-88/TMR\INF

File contents

                                                  M.J.RAWLINGS 16-4-88
                              TAPE TIMER

I  keep  track of all my sound recordings by keeping a note of the rev
count at the beginning and end of each piece, this makes  it  easy  to
find any recording but tells me nothing about the length of each piece
without  the  tedious process of timing it. Before I got involved with
my first computer I worked out a look up table which provided me  with
rough and ready times for my reel to reel recordings (in the days when
cassette recorders were just cheap plastic toys).

Unfortunately  not  all  of my tapes are on reels with the same centre
size, and I have a mixture of standard play, long play and double play
tapes. All this means that the lookup table has to have its own set of
correction tables, none of which has ever been very  accurate.  Many's
the  time  I  have tried to squeeze a recording onto the end of a tape
only to find, too late, that there was  insufficient  space.  Now  ten
years  and four computers later I have a video and a cassette recorder
and the problem is compounded many times. 

For some time now I have thought that it should be possible to write a
program to solve this problem and at last I have got round to  writing
it.  The  program  as  broadcast  has  standard options built in for 3
different types of sound cassette, 2 types of video cassette  and  the
most  common of my reel to reel options as an example. The program has
been designed to make it easy to add your own particular  options  and
to  make  corrections to timings if your tape machine or brand of tape
differs from my own.

                          USING THE PROGRAM

First select the option required from the main menu then enter the rev
count as shown on your tape recorder, the  total  time  will  then  be
displayed  together  with the time elapsed since the last rev count as
well as the recording space left on the tape. On the first  entry  the
program  will  assume that the previous count was zero and the elapsed
time will, of  course,  be  the  same  as  the  total  time.  Entering
succesive  higher  rev  counts  will  display  the elapsed time as the
difference in time between the current  rev  count  and  the  previous
count.  That is, you can time a recording merely by entering the start
rev count followed by the end count and reading off the elapsed  time.
Entering a rev count lower than the previous count will zero the start
count so that the elapsed time will match the total time.

You  can  press  <ESCAPE>  at  any  time  to  return to the main menu,
pressing <ESCAPE> again will allow you to exit from the program.


                             CUSTOMISING

The parameters for each of the ten possible choices are held  in  DATA
statements  at the end of the program followed by REM statements which
give brief reminders  of  the  use  of  each  parameter.  The  program
calculates  the  time elapsed from the thickness of the tape, the size
of the centre of the spool and the  number  of  times  the  spool  has
revolved  to  calculate  the  length  of tape that has passed over the
recording head. This length is then divided by the tape speed to  give
the  time  and  then  multiplied  by a correction factor to remove any
errors caused by slight innacuracies in the tape  thickness  or  spool
centre dimensions.

The  first  parameter  is  the name of the option, this is used in the
menu displayed on entry to the program, any null strings entered  here
will be ignored by the menu.

The second parameter labelled "A" is the diameter of the centre of the
reel in centimetres.

"B"  is  the  tape  speed  in  centimetres  per second. Standard audio
cassette speed is 1 7/8 inches per second or  4.7625  centimetres  per
second  and  standard VHS video speed is 2.339 centimetres per second.
There are 4 commonly used speeds on reel to reel recorders:-
                
               1 7/8 ins per sec (4.7625 cents per sec), 
               3.75 ins per sec (9.525 cents per sec)
               7.5 ins per sec (19.05 cents per sec)
               15 ins per sec (38.1 cents per sec)

"C" is the tape thickness, this varies from brand to brand, the values
I have used can be regarded as a rough guidance but to achieve greater
accuracy you need to make your own measurements. This is not  as  hard
as  it  sounds  and  you  will  not  need specially accurate measuring
instruments. Simply reset the rev counter then run the tape out to the
end, measure the total thickness of tape wound on to  the  spool  then
divide by the number of revolutions. The only thing you should be wary
of  is the fact that many cassette recorders record only one rev count
to every two actual  revolutions.  Alternatively  you  can  leave  the
thickness  alone  and  make  use  of the correction facility described
below, although I would advise you to do this only if  the  correction
required is relatively small.

"D"  is  the  time  correction factor and it can be used to make minor
adjustments to the timings. For example if the program gave the result
35 mins 50 secs, when you have used a stopwatch to time a recording at
36 mins 15 sec then the correction factor can be found as follows:-

               factor=(36*60+15)/(35*60+50)

All the correction factors in the program as broadcast have  been  set
to  1, as I have adjusted the thickness "C" to give results consistent
with my own equipment. 

"E" specifies the number of actual revolutions of the  spool  per  rev
count  displayed.  As mentioned above some tape machines only show one
rev count to every two actual revolutions in which case this parameter
should be set to 2.

"F" is the maximum duration of the tape in minutes, used to  calculate
how much time is left after the current rev count.

"G":-  Some  reel to reel tape machines have the rev counter connected
to the output reel not the takeup reel. This means that the rev  count
is  only  indirectly  connected  to the length of tape that has passed
over the recording head.  In  this  case  the  program  will  have  to
calculate  the  length  of  tape  backwards from the maximum number of
revolutions for a full reel. "G" is used as a flag to  indicate  which
reel is being counted:-

               G=-1 (TRUE) takeup reel counted
               G=0 (FALSE) output reel counted 

"H"  is  the highest number of revolutions on a full reel, simply zero
the rev counter to 0, run the tape through to the end and note the rev
count. This parameter is only used when "G" is set to 0.

                            COMPATIBILITY

This program will run on any Acorn computer with BBC  Basic  from  the
BBC A right through to the Archimedes, it is written purely in "legal"
Basic  with  no  peeks  or  pokes.  It  will  also run on an IBM PC or
compatible equiped with M-TEC's version of BBC Basic, simply  transfer
across from your Beeb with a cable connected to the serial ports using
the  "TX"  and  "RX"  programs  supplied, then convert to PC format as
described in appendix "F" of the guide. If your version of  the  guide
does  not  inclue  appendix  "F" then you should be able to obtain the
necessary cable and software direct from M-TEC.

No customising is necessary to run the program on a PC as there  is  a
routine  in  the program which detects the presence of a PC by issuing
an osbyte call which performs a  different action on  a  PC,  than  it
does  on a BBC. Similarly there is an error handling routine to detect
the "bad mode" message on a PC. This is not because of lack of memory,
as a PC does not use program space for the screen and leaves the  full
62.5K  available  for  programing  regardless  of  screen mode, but to
detect whether the PC is fitted with a colour or mono display card.

Because the program is a straight forward piece of  Basic  programming
with  no  fancy  graphics, it should be easy to adapt it to suit other
brands of Basic on other computers.

00000000  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
*
00000030  20 20 4d 2e 4a 2e 52 41  57 4c 49 4e 47 53 20 31  |  M.J.RAWLINGS 1|
00000040  36 2d 34 2d 38 38 0d 20  20 20 20 20 20 20 20 20  |6-4-88.         |
00000050  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000060  20 20 20 20 20 54 41 50  45 20 54 49 4d 45 52 0d  |     TAPE TIMER.|
00000070  0d 49 20 20 6b 65 65 70  20 20 74 72 61 63 6b 20  |.I  keep  track |
00000080  6f 66 20 61 6c 6c 20 6d  79 20 73 6f 75 6e 64 20  |of all my sound |
00000090  72 65 63 6f 72 64 69 6e  67 73 20 62 79 20 6b 65  |recordings by ke|
000000a0  65 70 69 6e 67 20 61 20  6e 6f 74 65 20 6f 66 20  |eping a note of |
000000b0  74 68 65 20 72 65 76 0d  63 6f 75 6e 74 20 61 74  |the rev.count at|
000000c0  20 74 68 65 20 62 65 67  69 6e 6e 69 6e 67 20 61  | the beginning a|
000000d0  6e 64 20 65 6e 64 20 6f  66 20 65 61 63 68 20 70  |nd end of each p|
000000e0  69 65 63 65 2c 20 74 68  69 73 20 6d 61 6b 65 73  |iece, this makes|
000000f0  20 20 69 74 20 20 65 61  73 79 20 20 74 6f 0d 66  |  it  easy  to.f|
00000100  69 6e 64 20 61 6e 79 20  72 65 63 6f 72 64 69 6e  |ind any recordin|
00000110  67 20 62 75 74 20 74 65  6c 6c 73 20 6d 65 20 6e  |g but tells me n|
00000120  6f 74 68 69 6e 67 20 61  62 6f 75 74 20 74 68 65  |othing about the|
00000130  20 6c 65 6e 67 74 68 20  6f 66 20 65 61 63 68 20  | length of each |
00000140  70 69 65 63 65 0d 77 69  74 68 6f 75 74 20 20 74  |piece.without  t|
00000150  68 65 20 20 74 65 64 69  6f 75 73 20 70 72 6f 63  |he  tedious proc|
00000160  65 73 73 20 6f 66 20 74  69 6d 69 6e 67 20 69 74  |ess of timing it|
00000170  2e 20 42 65 66 6f 72 65  20 49 20 67 6f 74 20 69  |. Before I got i|
00000180  6e 76 6f 6c 76 65 64 20  77 69 74 68 0d 6d 79 20  |nvolved with.my |
00000190  66 69 72 73 74 20 63 6f  6d 70 75 74 65 72 20 49  |first computer I|
000001a0  20 77 6f 72 6b 65 64 20  6f 75 74 20 61 20 6c 6f  | worked out a lo|
000001b0  6f 6b 20 75 70 20 74 61  62 6c 65 20 77 68 69 63  |ok up table whic|
000001c0  68 20 70 72 6f 76 69 64  65 64 20 6d 65 20 20 77  |h provided me  w|
000001d0  69 74 68 0d 72 6f 75 67  68 20 61 6e 64 20 72 65  |ith.rough and re|
000001e0  61 64 79 20 74 69 6d 65  73 20 66 6f 72 20 6d 79  |ady times for my|
000001f0  20 72 65 65 6c 20 74 6f  20 72 65 65 6c 20 72 65  | reel to reel re|
00000200  63 6f 72 64 69 6e 67 73  20 28 69 6e 20 74 68 65  |cordings (in the|
00000210  20 64 61 79 73 20 77 68  65 6e 0d 63 61 73 73 65  | days when.casse|
00000220  74 74 65 20 72 65 63 6f  72 64 65 72 73 20 77 65  |tte recorders we|
00000230  72 65 20 6a 75 73 74 20  63 68 65 61 70 20 70 6c  |re just cheap pl|
00000240  61 73 74 69 63 20 74 6f  79 73 29 2e 0d 0d 55 6e  |astic toys)...Un|
00000250  66 6f 72 74 75 6e 61 74  65 6c 79 20 20 6e 6f 74  |fortunately  not|
00000260  20 20 61 6c 6c 20 20 6f  66 20 6d 79 20 74 61 70  |  all  of my tap|
00000270  65 73 20 61 72 65 20 6f  6e 20 72 65 65 6c 73 20  |es are on reels |
00000280  77 69 74 68 20 74 68 65  20 73 61 6d 65 20 63 65  |with the same ce|
00000290  6e 74 72 65 0d 73 69 7a  65 2c 20 61 6e 64 20 49  |ntre.size, and I|
000002a0  20 68 61 76 65 20 61 20  6d 69 78 74 75 72 65 20  | have a mixture |
000002b0  6f 66 20 73 74 61 6e 64  61 72 64 20 70 6c 61 79  |of standard play|
000002c0  2c 20 6c 6f 6e 67 20 70  6c 61 79 20 61 6e 64 20  |, long play and |
000002d0  64 6f 75 62 6c 65 20 70  6c 61 79 0d 74 61 70 65  |double play.tape|
000002e0  73 2e 20 41 6c 6c 20 74  68 69 73 20 6d 65 61 6e  |s. All this mean|
000002f0  73 20 74 68 61 74 20 74  68 65 20 6c 6f 6f 6b 75  |s that the looku|
00000300  70 20 74 61 62 6c 65 20  68 61 73 20 74 6f 20 68  |p table has to h|
00000310  61 76 65 20 69 74 73 20  6f 77 6e 20 73 65 74 20  |ave its own set |
00000320  6f 66 0d 63 6f 72 72 65  63 74 69 6f 6e 20 74 61  |of.correction ta|
00000330  62 6c 65 73 2c 20 6e 6f  6e 65 20 6f 66 20 77 68  |bles, none of wh|
00000340  69 63 68 20 68 61 73 20  65 76 65 72 20 62 65 65  |ich has ever bee|
00000350  6e 20 76 65 72 79 20 20  61 63 63 75 72 61 74 65  |n very  accurate|
00000360  2e 20 20 4d 61 6e 79 27  73 0d 74 68 65 20 20 74  |.  Many's.the  t|
00000370  69 6d 65 20 20 49 20 20  68 61 76 65 20 74 72 69  |ime  I  have tri|
00000380  65 64 20 74 6f 20 73 71  75 65 65 7a 65 20 61 20  |ed to squeeze a |
00000390  72 65 63 6f 72 64 69 6e  67 20 6f 6e 74 6f 20 74  |recording onto t|
000003a0  68 65 20 65 6e 64 20 6f  66 20 61 20 74 61 70 65  |he end of a tape|
000003b0  0d 6f 6e 6c 79 20 74 6f  20 66 69 6e 64 2c 20 74  |.only to find, t|
000003c0  6f 6f 20 6c 61 74 65 2c  20 74 68 61 74 20 74 68  |oo late, that th|
000003d0  65 72 65 20 77 61 73 20  20 69 6e 73 75 66 66 69  |ere was  insuffi|
000003e0  63 69 65 6e 74 20 20 73  70 61 63 65 2e 20 20 4e  |cient  space.  N|
000003f0  6f 77 20 20 74 65 6e 0d  79 65 61 72 73 20 20 61  |ow  ten.years  a|
00000400  6e 64 20 66 6f 75 72 20  63 6f 6d 70 75 74 65 72  |nd four computer|
00000410  73 20 6c 61 74 65 72 20  49 20 68 61 76 65 20 61  |s later I have a|
00000420  20 76 69 64 65 6f 20 61  6e 64 20 61 20 63 61 73  | video and a cas|
00000430  73 65 74 74 65 20 72 65  63 6f 72 64 65 72 0d 61  |sette recorder.a|
00000440  6e 64 20 74 68 65 20 70  72 6f 62 6c 65 6d 20 69  |nd the problem i|
00000450  73 20 63 6f 6d 70 6f 75  6e 64 65 64 20 6d 61 6e  |s compounded man|
00000460  79 20 74 69 6d 65 73 2e  20 0d 0d 46 6f 72 20 73  |y times. ..For s|
00000470  6f 6d 65 20 74 69 6d 65  20 6e 6f 77 20 49 20 68  |ome time now I h|
00000480  61 76 65 20 74 68 6f 75  67 68 74 20 74 68 61 74  |ave thought that|
00000490  20 69 74 20 73 68 6f 75  6c 64 20 62 65 20 70 6f  | it should be po|
000004a0  73 73 69 62 6c 65 20 74  6f 20 77 72 69 74 65 20  |ssible to write |
000004b0  61 0d 70 72 6f 67 72 61  6d 20 74 6f 20 73 6f 6c  |a.program to sol|
000004c0  76 65 20 74 68 69 73 20  70 72 6f 62 6c 65 6d 20  |ve this problem |
000004d0  61 6e 64 20 61 74 20 6c  61 73 74 20 49 20 68 61  |and at last I ha|
000004e0  76 65 20 67 6f 74 20 72  6f 75 6e 64 20 74 6f 20  |ve got round to |
000004f0  20 77 72 69 74 69 6e 67  0d 69 74 2e 20 20 54 68  | writing.it.  Th|
00000500  65 20 20 70 72 6f 67 72  61 6d 20 20 61 73 20 20  |e  program  as  |
00000510  62 72 6f 61 64 63 61 73  74 20 20 68 61 73 20 20  |broadcast  has  |
00000520  73 74 61 6e 64 61 72 64  20 6f 70 74 69 6f 6e 73  |standard options|
00000530  20 62 75 69 6c 74 20 69  6e 20 66 6f 72 20 33 0d  | built in for 3.|
00000540  64 69 66 66 65 72 65 6e  74 20 74 79 70 65 73 20  |different types |
00000550  6f 66 20 73 6f 75 6e 64  20 63 61 73 73 65 74 74  |of sound cassett|
00000560  65 2c 20 32 20 74 79 70  65 73 20 6f 66 20 76 69  |e, 2 types of vi|
00000570  64 65 6f 20 63 61 73 73  65 74 74 65 20 20 61 6e  |deo cassette  an|
00000580  64 20 20 74 68 65 0d 6d  6f 73 74 20 20 63 6f 6d  |d  the.most  com|
00000590  6d 6f 6e 20 6f 66 20 6d  79 20 72 65 65 6c 20 74  |mon of my reel t|
000005a0  6f 20 72 65 65 6c 20 6f  70 74 69 6f 6e 73 20 61  |o reel options a|
000005b0  73 20 61 6e 20 65 78 61  6d 70 6c 65 2e 20 54 68  |s an example. Th|
000005c0  65 20 70 72 6f 67 72 61  6d 20 68 61 73 0d 62 65  |e program has.be|
000005d0  65 6e 20 64 65 73 69 67  6e 65 64 20 74 6f 20 6d  |en designed to m|
000005e0  61 6b 65 20 69 74 20 65  61 73 79 20 74 6f 20 61  |ake it easy to a|
000005f0  64 64 20 79 6f 75 72 20  6f 77 6e 20 70 61 72 74  |dd your own part|
00000600  69 63 75 6c 61 72 20 20  6f 70 74 69 6f 6e 73 20  |icular  options |
00000610  20 61 6e 64 0d 74 6f 20  20 6d 61 6b 65 20 20 63  | and.to  make  c|
00000620  6f 72 72 65 63 74 69 6f  6e 73 20 74 6f 20 74 69  |orrections to ti|
00000630  6d 69 6e 67 73 20 69 66  20 79 6f 75 72 20 74 61  |mings if your ta|
00000640  70 65 20 6d 61 63 68 69  6e 65 20 6f 72 20 62 72  |pe machine or br|
00000650  61 6e 64 20 6f 66 20 74  61 70 65 0d 64 69 66 66  |and of tape.diff|
00000660  65 72 73 20 66 72 6f 6d  20 6d 79 20 6f 77 6e 2e  |ers from my own.|
00000670  0d 0d 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |..              |
00000680  20 20 20 20 20 20 20 20  20 20 20 20 55 53 49 4e  |            USIN|
00000690  47 20 54 48 45 20 50 52  4f 47 52 41 4d 0d 0d 46  |G THE PROGRAM..F|
000006a0  69 72 73 74 20 73 65 6c  65 63 74 20 74 68 65 20  |irst select the |
000006b0  6f 70 74 69 6f 6e 20 72  65 71 75 69 72 65 64 20  |option required |
000006c0  66 72 6f 6d 20 74 68 65  20 6d 61 69 6e 20 6d 65  |from the main me|
000006d0  6e 75 20 74 68 65 6e 20  65 6e 74 65 72 20 74 68  |nu then enter th|
000006e0  65 20 72 65 76 0d 63 6f  75 6e 74 20 61 73 20 73  |e rev.count as s|
000006f0  68 6f 77 6e 20 6f 6e 20  79 6f 75 72 20 74 61 70  |hown on your tap|
00000700  65 20 72 65 63 6f 72 64  65 72 2c 20 74 68 65 20  |e recorder, the |
00000710  20 74 6f 74 61 6c 20 20  74 69 6d 65 20 20 77 69  | total  time  wi|
00000720  6c 6c 20 20 74 68 65 6e  20 20 62 65 0d 64 69 73  |ll  then  be.dis|
00000730  70 6c 61 79 65 64 20 20  74 6f 67 65 74 68 65 72  |played  together|
00000740  20 20 77 69 74 68 20 74  68 65 20 74 69 6d 65 20  |  with the time |
00000750  65 6c 61 70 73 65 64 20  73 69 6e 63 65 20 74 68  |elapsed since th|
00000760  65 20 6c 61 73 74 20 72  65 76 20 63 6f 75 6e 74  |e last rev count|
00000770  20 61 73 0d 77 65 6c 6c  20 61 73 20 74 68 65 20  | as.well as the |
00000780  72 65 63 6f 72 64 69 6e  67 20 73 70 61 63 65 20  |recording space |
00000790  6c 65 66 74 20 6f 6e 20  74 68 65 20 74 61 70 65  |left on the tape|
000007a0  2e 20 4f 6e 20 74 68 65  20 66 69 72 73 74 20 20  |. On the first  |
000007b0  65 6e 74 72 79 20 20 74  68 65 0d 70 72 6f 67 72  |entry  the.progr|
000007c0  61 6d 20 20 77 69 6c 6c  20 20 61 73 73 75 6d 65  |am  will  assume|
000007d0  20 74 68 61 74 20 74 68  65 20 70 72 65 76 69 6f  | that the previo|
000007e0  75 73 20 63 6f 75 6e 74  20 77 61 73 20 7a 65 72  |us count was zer|
000007f0  6f 20 61 6e 64 20 74 68  65 20 65 6c 61 70 73 65  |o and the elapse|
00000800  64 0d 74 69 6d 65 20 77  69 6c 6c 2c 20 6f 66 20  |d.time will, of |
00000810  20 63 6f 75 72 73 65 2c  20 20 62 65 20 20 74 68  | course,  be  th|
00000820  65 20 20 73 61 6d 65 20  20 61 73 20 20 74 68 65  |e  same  as  the|
00000830  20 20 74 6f 74 61 6c 20  20 74 69 6d 65 2e 20 20  |  total  time.  |
00000840  45 6e 74 65 72 69 6e 67  0d 73 75 63 63 65 73 69  |Entering.succesi|
00000850  76 65 20 20 68 69 67 68  65 72 20 20 72 65 76 20  |ve  higher  rev |
00000860  20 63 6f 75 6e 74 73 20  20 77 69 6c 6c 20 20 64  | counts  will  d|
00000870  69 73 70 6c 61 79 20 20  74 68 65 20 65 6c 61 70  |isplay  the elap|
00000880  73 65 64 20 74 69 6d 65  20 61 73 20 74 68 65 0d  |sed time as the.|
00000890  64 69 66 66 65 72 65 6e  63 65 20 69 6e 20 74 69  |difference in ti|
000008a0  6d 65 20 62 65 74 77 65  65 6e 20 74 68 65 20 63  |me between the c|
000008b0  75 72 72 65 6e 74 20 20  72 65 76 20 20 63 6f 75  |urrent  rev  cou|
000008c0  6e 74 20 20 61 6e 64 20  20 74 68 65 20 20 70 72  |nt  and  the  pr|
000008d0  65 76 69 6f 75 73 0d 63  6f 75 6e 74 2e 20 20 54  |evious.count.  T|
000008e0  68 61 74 20 69 73 2c 20  79 6f 75 20 63 61 6e 20  |hat is, you can |
000008f0  74 69 6d 65 20 61 20 72  65 63 6f 72 64 69 6e 67  |time a recording|
00000900  20 6d 65 72 65 6c 79 20  62 79 20 65 6e 74 65 72  | merely by enter|
00000910  69 6e 67 20 74 68 65 20  73 74 61 72 74 0d 72 65  |ing the start.re|
00000920  76 20 63 6f 75 6e 74 20  66 6f 6c 6c 6f 77 65 64  |v count followed|
00000930  20 62 79 20 74 68 65 20  65 6e 64 20 63 6f 75 6e  | by the end coun|
00000940  74 20 61 6e 64 20 72 65  61 64 69 6e 67 20 6f 66  |t and reading of|
00000950  66 20 74 68 65 20 65 6c  61 70 73 65 64 20 20 74  |f the elapsed  t|
00000960  69 6d 65 2e 0d 45 6e 74  65 72 69 6e 67 20 61 20  |ime..Entering a |
00000970  72 65 76 20 63 6f 75 6e  74 20 6c 6f 77 65 72 20  |rev count lower |
00000980  74 68 61 6e 20 74 68 65  20 70 72 65 76 69 6f 75  |than the previou|
00000990  73 20 63 6f 75 6e 74 20  77 69 6c 6c 20 7a 65 72  |s count will zer|
000009a0  6f 20 74 68 65 20 73 74  61 72 74 0d 63 6f 75 6e  |o the start.coun|
000009b0  74 20 73 6f 20 74 68 61  74 20 74 68 65 20 65 6c  |t so that the el|
000009c0  61 70 73 65 64 20 74 69  6d 65 20 77 69 6c 6c 20  |apsed time will |
000009d0  6d 61 74 63 68 20 74 68  65 20 74 6f 74 61 6c 20  |match the total |
000009e0  74 69 6d 65 2e 0d 0d 59  6f 75 20 20 63 61 6e 20  |time...You  can |
000009f0  20 70 72 65 73 73 20 20  3c 45 53 43 41 50 45 3e  | press  <ESCAPE>|
00000a00  20 20 61 74 20 20 61 6e  79 20 20 74 69 6d 65 20  |  at  any  time |
00000a10  20 74 6f 20 20 72 65 74  75 72 6e 20 74 6f 20 74  | to  return to t|
00000a20  68 65 20 6d 61 69 6e 20  6d 65 6e 75 2c 0d 70 72  |he main menu,.pr|
00000a30  65 73 73 69 6e 67 20 3c  45 53 43 41 50 45 3e 20  |essing <ESCAPE> |
00000a40  61 67 61 69 6e 20 77 69  6c 6c 20 61 6c 6c 6f 77  |again will allow|
00000a50  20 79 6f 75 20 74 6f 20  65 78 69 74 20 66 72 6f  | you to exit fro|
00000a60  6d 20 74 68 65 20 70 72  6f 67 72 61 6d 2e 0d 0d  |m the program...|
00000a70  0d 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |.               |
00000a80  20 20 20 20 20 20 20 20  20 20 20 20 20 20 43 55  |              CU|
00000a90  53 54 4f 4d 49 53 49 4e  47 0d 0d 54 68 65 20 70  |STOMISING..The p|
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00001a00  73 69 63 20 20 66 72 6f  6d 20 20 74 68 65 0d 42  |sic  from  the.B|
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00001a60  68 20 20 6e 6f 20 20 70  65 65 6b 73 20 20 6f 72  |h  no  peeks  or|
00001a70  20 20 70 6f 6b 65 73 2e  20 20 49 74 20 20 77 69  |  pokes.  It  wi|
00001a80  6c 6c 20 20 61 6c 73 6f  20 72 75 6e 20 6f 6e 20  |ll  also run on |
00001a90  61 6e 20 49 42 4d 20 50  43 20 6f 72 0d 63 6f 6d  |an IBM PC or.com|
00001aa0  70 61 74 69 62 6c 65 20  65 71 75 69 70 65 64 20  |patible equiped |
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00001b30  22 54 58 22 20 20 61 6e  64 20 20 22 52 58 22 20  |"TX"  and  "RX" |
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00001d50  20 22 62 61 64 20 6d 6f  64 65 22 20 6d 65 73 73  | "bad mode" mess|
00001d60  61 67 65 20 6f 6e 20 61  20 50 43 2e 20 54 68 69  |age on a PC. Thi|
00001d70  73 20 69 73 20 6e 6f 74  20 62 65 63 61 75 73 65  |s is not because|
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00001dc0  63 72 65 65 6e 20 61 6e  64 20 6c 65 61 76 65 73  |creen and leaves|
00001dd0  20 74 68 65 20 20 66 75  6c 6c 0d 36 32 2e 35 4b  | the  full.62.5K|
00001de0  20 20 61 76 61 69 6c 61  62 6c 65 20 20 66 6f 72  |  available  for|
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00001e30  20 74 68 65 20 50 43 20  69 73 20 66 69 74 74 65  | the PC is fitte|
00001e40  64 20 77 69 74 68 20 61  20 63 6f 6c 6f 75 72 20  |d with a colour |
00001e50  6f 72 20 6d 6f 6e 6f 20  64 69 73 70 6c 61 79 20  |or mono display |
00001e60  63 61 72 64 2e 0d 0d 42  65 63 61 75 73 65 20 74  |card...Because t|
00001e70  68 65 20 70 72 6f 67 72  61 6d 20 69 73 20 61 20  |he program is a |
00001e80  73 74 72 61 69 67 68 74  20 66 6f 72 77 61 72 64  |straight forward|
00001e90  20 70 69 65 63 65 20 6f  66 20 20 42 61 73 69 63  | piece of  Basic|
00001ea0  20 20 70 72 6f 67 72 61  6d 6d 69 6e 67 0d 77 69  |  programming.wi|
00001eb0  74 68 20 20 6e 6f 20 20  66 61 6e 63 79 20 20 67  |th  no  fancy  g|
00001ec0  72 61 70 68 69 63 73 2c  20 69 74 20 73 68 6f 75  |raphics, it shou|
00001ed0  6c 64 20 62 65 20 65 61  73 79 20 74 6f 20 61 64  |ld be easy to ad|
00001ee0  61 70 74 20 69 74 20 74  6f 20 73 75 69 74 20 6f  |apt it to suit o|
00001ef0  74 68 65 72 0d 62 72 61  6e 64 73 20 6f 66 20 42  |ther.brands of B|
00001f00  61 73 69 63 20 6f 6e 20  6f 74 68 65 72 20 63 6f  |asic on other co|
00001f10  6d 70 75 74 65 72 73 2e  0d                       |mputers..|
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