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$L1CM
PROGRAM TO COPY A FLOPPY DISC
$B3
$P1 @A %STAND %ALONE PROGRAM ON A PAPER TAPE IS PROVIDED
TO ENABLE A FLOPPY DISC TO BE COPIED. @THE PAPER TAPE IS
CALLED .'COPY .FLOPPY' AND THE PROCEDURE IS AS FOLLOWS:-
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$B1 1) @LOAD THE .MUSS11 SYSTEM IN THE NORMAL MANNER AND
THEN HALT THE PROCESSOR.
@THIS ACTION WILL LOAD THE 'PAPER TAPE BOOTSTRAP' INTO CORE,
ALTERNATLY THE .DEC BOOTSTRAP MAY BE USED - SEE THEIR MANUAL.
$B1 2) @REMOVE THE SYSTEM DISC FROM THE MACHINE AND PLACE THE
DISC %TO %BE %COPIED %FROM INTO DRIVE ZERO. @THE BLANK
DISC, OR DISC TO BE OVERWRITTEN IS LOADED ON DRIVE ONE.
$B1 3) @LOAD THE PAPER TAPE INTO THE READER.
$B1 4) @SET THE ADDRESS '077500' ON THE SWITCH REGISTERS
AND %PRESS .LOAD .ADDRESS.
$B1 5) @RAISE THE .HALT .SWITCH AND 
%PRESS .START.
$B1 6) @THE PAPER TAPE SHOULD NOW LOAD IN, IF IT STOPS PART
WAY ALONG, REPEAT THE ENTIRE PROCESS.
$B1 7) @THE .COPY PROGRAM RUNS AUTOMATICALLY
AND PRINTS THE LETTER .'A' AS IT COMPLETES EACH TRACK ON THE DISC.
$B1 8) @AFTER COMPLETING THE ENTIRE DISC, THE PROGRAM WILL
HALT AT 030230.
$B1 9) @IF IT HALTS ANYWHERE ELSE, A FAULT HAS OCCURED, TRY
IT AGAIN,
BY RESTARTING .COPY AT ADDRESS '030000',
 BUT IT MAY MEAN THAT ONE OF THE DISCS IS UNUSABLE.
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CARD READER
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@THERE ARE TWO MAIN WAYS IN WHICH THE CARD READER WILL
FAIL TO READ A CARD, THERE IS A DIFFERENT RECOVERY PROCEDURE
IN EACH CASE.
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$B1 1) .PICK .CHECK
@IN THIS CASE THE CARD READER FAILS TO 'PICK' A CARD FROM THE
INPUT HOPPER. @THE SYSTEM IS NOTIFIED AND A 
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CR OFFLINE!
MESSAGE IS OUTPUT. @THE BOTTOM CARD OF THE INPUT HOPPER SHOULD
BE EXAMINED, IF IT IS DAMAGED THEN IT WILL HAVE TO
BE REPUNCHED, OTHERWISE LOAD THE CARDS IN AGAIN. @THE
.RESET BUTTON SHOULD BE PUSHED AND THE FOLLOWING
MESSAGE TYPED IN AT THE CONSOLE:
$B1 (ESC) .CO .CR
$B1 2) .READ .CHECK
@IN THE CASE OF A READ CHECK A CARD HAS ACTUALLY BEEN READ
BUT NOT CORRECTLY, IN A SMALL NUMBER OF CASES TWO CARDS
MAY ACTUALLY HAVE BEEN READ. @THERE IS NO 
WAY TO DISTINGUISH BETWEEN THE TWO CASES, HOWEVER, NORMALLY
A RE-READ OF THE LAST CARD IS ENOUGH.
@THE READ ERROR IS SIGNALLED BY THE .'LT$. .CHK$.' LIGHT
ON THE CARD READER, THE SYSTEM IS NOT TOLD AT THAT STAGE
THAT A FAULT HAS OCCURED. @TO RECOVER, PLACE THE LAST CARD
READ BACK IN THE INPUT HOPPER AND PRESS THE RESET BUTTON.
@AS IN THE PICK CHECK CASE, THE .'CO .CR' MESSAGE
SHOULD BE TYPED IN.
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