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Commodore 1541-II - Page 97

Commodore 1541-II
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PROGRAM
FILE
FORMAT
BYTE
DEFINITION
FIRST
SECTOR
0,1
Track
and
sector
of
next
block
in
program
file.
2,3
Load
address
of
the
program
4-255
Next
252
bytes
of
program
information
stored
as
in
computer
memory
(with
key
words
tokenized).
REMAINING
FULL
SECTORS
0,1
Track
and
sector
of
next
block
in
program
file.
2-255
Next
254
bytes
of
program
info
stored
as
in
computer
memory
(with
key
words
tokenized).
FINAL
SECTOR
0,1
Null
($00),
followed
by
number
of
valid
data
bytes
in
sector.
2-???
Last
bytes
of
the
program
information,
stored
as
in
computer
memory
(with
key
words
tokenized).
The
end
of
a
Basic
file
is
marked
by
3
zero
bytes
in
a
row.
Any
remaining
bytes
in
the
sector
are
garbage,
and
may
be
ignored.
SEQUENTIAL
FILE
FORMAT
BYTE
DEFINITION
ALL
BUT
FINAL
SECTOR
0-1
Track
and
sector
of
next
sequential
data
block.
2-255
254
bytes
of
data.
FINAL
SECTOR
0,1
Null
($00),
followed
by
number
of
valid
data
bytes
in
sector.
2-???
Last
bytes
of
data.
Any
remaining
bytes
are
garbage
and
may
be
ignored.
89

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