9 Mar
2004
9 Mar
'04
11:49 a.m.
It seems I can't save a file twice with the same name
... write basic program ...
save "program",8
... edit basic program ...
save "program",8
(light on floppy blinks - error )
verify "program",8
wont verify
... power cycle ...
load "program",8
... view program ... it's the old program, not the edited program.
this behaviour noted on both a read c64sx (before it croaked) and on
the VICE emulator.
I can't seem to see anything in the manual about it.. and also no
command to delete a file.
9 Mar
9 Mar
12:46 p.m.
Just checked the owner's book and it doesn't mention that it overwrites.
Probably have to number your programs, such as PROG1, PROG2, etc. When
finished, just save as PROG.
Gary Hildebrand
It seems I can't save a file twice with the same name
... write basic program ...
save "program",8
... edit basic program ...
save "program",8
(light on floppy blinks - error )
verify "program",8
wont verify
... power cycle ...
load "program",8
... view program ... it's the old program, not the edited program.
this behaviour noted on both a read c64sx (before it croaked) and on
the VICE emulator.
I can't seem to see anything in the manual about it.. and also no
command to delete a file.
3:50 p.m.
Not exactly correct.
save "@0:program",8
the @ is save with replace. look for all sorts of
info on the save-with-replace bug, if so inclined.
its supposed to be safe if you use it with the @0,
because the bug is related to having multiple drives
(or so I understand).
Kelly
ghldbrd(a)ccp.com wrote:
Just checked the owner's book and it doesn't
mention that it overwrites.
Probably have to number your programs, such as PROG1, PROG2, etc. When
finished, just save as PROG.
Gary Hildebrand
It seems I can't save a file twice with the
same name
... write basic program ...
save "program",8
... edit basic program ...
save "program",8
(light on floppy blinks - error )
verify "program",8
wont verify
... power cycle ...
load "program",8
... view program ... it's the old program, not the edited program.
this behaviour noted on both a read c64sx (before it croaked) and on
the VICE emulator.
I can't seem to see anything in the manual about it.. and also no
command to delete a file.
4:24 p.m.
It seems I can't save a file twice with the same
name
... write basic program ...
save "program",8
... edit basic program ...
save "program",8
(light on floppy blinks - error )
This is a "feature" of Commodore DOS (the error is 63, FILE EXISTS, 00, 00).
You can handle this in two ways.
1. Save-with-replace:
SAVE"@0:PROGRAM",8
This has a notorious bug on 1541 disk drives that tends to strike when
the disk is very near capacity, since both copies of the program must
exist on the disk at once. A safer approach is to
2. Scratch first, save later.
OPEN15,8,15,"S0:PROGRAM":CLOSE15
SAVE"PROGRAM",8
This is the safest approach as it has the least chance to go berserk unseen.
Many disk wedges like Epyx FastLoad and DOS WEDGE 5.1 reduce the OPEN
statement to @S0:PROGRAM or >S0:PROGRAM or some such variant. Alternatively,
have a block in your program like this:
63998 END
63999 OPEN15,8,15,"S0:PROGRAM":CLOSE15:SAVE"PROGRAM",8
then RUN 63999 whenever you want to save-and-replace.
--
---------------------------------- personal: http://www.armory.com/~spectre/ --
Cameron Kaiser, Floodgap Systems Ltd * So. Calif., USA * ckaiser(a)floodgap.com
-- Backup not found. Abort, Retry, Vomit, Panic, Write Resume File? -----------
5:25 p.m.
Thanks! I'll try that.
On Tuesday, March 9, 2004, at 07:24 PM, Cameron Kaiser wrote:
It seems I
can't save a file twice with the same name
... write basic program ...
save "program",8
... edit basic program ...
save "program",8
(light on floppy blinks - error )
This is a "feature" of Commodore DOS (the error is 63, FILE EXISTS,
00, 00).
You can handle this in two ways.
1. Save-with-replace:
SAVE"@0:PROGRAM",8
This has a notorious bug on 1541 disk drives that tends to strike when
the disk is very near capacity, since both copies of the program must
exist on the disk at once. A safer approach is to
2. Scratch first, save later.
OPEN15,8,15,"S0:PROGRAM":CLOSE15
SAVE"PROGRAM",8
This is the safest approach as it has the least chance to go berserk
unseen.
Many disk wedges like Epyx FastLoad and DOS WEDGE 5.1 reduce the OPEN
statement to @S0:PROGRAM or >S0:PROGRAM or some such variant.
Alternatively,
have a block in your program like this:
63998 END
63999 OPEN15,8,15,"S0:PROGRAM":CLOSE15:SAVE"PROGRAM",8
then RUN 63999 whenever you want to save-and-replace.
--
---------------------------------- personal:
http://www.armory.com/~spectre/ --
Cameron Kaiser, Floodgap Systems Ltd * So. Calif., USA *
ckaiser(a)floodgap.com
-- Backup not found. Abort, Retry, Vomit, Panic, Write Resume File?
-----------
10 Mar
10 Mar
1:54 a.m.
--- Ron Hudson <ron.hudson(a)sbcglobal.net> wrote:
It seems I can't save a file twice with the same name
... write basic program ...
save "program",8
... edit basic program ...
Try 'kill "program" ' here
save "program",8
=====
#-------------------------------------------------------
# Thomas Bodine, http://www.tommythegeek.com
# Computer support for small business
# Skipper S/V Frimi WWP 19 #1029
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7441
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5 comments
5 participants
participants (5)
-
bo_dance＠yahoo.com -
ghldbrd＠ccp.com -
kelly＠fergason.com -
ron.hudson＠sbcglobal.net -
spectre＠floodgap.com