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Commodore Plus 4
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Machine-Language
Monitor
Commands
237
Copying
a
Section
of
Memory—The
T
Command
The
T
(Transfer)
command
is
used
to
copy
the
contents
of
a
section
of
memory
into
another
section
of
memory.
The
syntax
is
as
follows:
T
start
address
1
end
address
1
start
address
2
The
start
address
1
is
the
hexadecimal
address
at
which
the
section
of
memory
to
be
copied
begins.
The
end
address
1
is
the
last
hexadecimal
address
of
the
section
of
memory
to
be
copied.
The
start
address
2
is
the
hexadecimal
address
of
the
destination
section
of
memory.
No
end
address
is
needed
for
the
destination
section
of
memory.
It
is
assumed
to
be
the
same
length
as
the
section
of
memory
to
be
copied.
The
specified
end
and
start
points
are
copied.
The
monitor
places
the
contents
of
the
specified
section
of
memory
into
the
destination
section
of
memory.
The
contents
of
the
first
section
are
not
altered,
and
the
previous
contents
of
the
destination
section
are
lost.
A
transfer
from
a
ROM
section
copies
the
contents
of
the
ROM.
A
transfer
to
a
ROM
area
places
the
copied
data
in
the
RAM
underneath.
A
section
of
memory
may
be
successfully
transferred
to
an
overlapping
desti
nation
section
if
the
destination
section
begins
at
an
address
lower
than
the
original
section.
Attempts
to
transfer
to
an
overlapping
section
beginning
in
the
middle
of
the
original
section
do
not
result
in
copying
the
information
correctly.
Example:
T
S000
20FF
3000
The
contents
of
$2000
through
$20FF
are
copied
into
$3000
through
$30FF.
Verifying
a
File
on
Cassette
or
Disk—The
V
Command
The
V
(Verify)
command
is
used
to
compare
the
contents
of
a
file
saved
on
cassette
or
disk
with
the
contents
of
memory.
The
syntax
is
as
follows:
V
filename,device
The
filename
is
the
optional
Plus/4
file
name
surrounded
by
quotation
marks.
The
device
is
the
optional
Plus/4
device
number
(see
Chapter
6).
The
monitor
compares
the
specified
program
file
with
memory.
The
file
must
be
a
program-type
file
(see
Chapter
6),
as
these
have
the
start
address
for
comparing
stored
in
the
first
two
bytes
of
the
file.
These
bytes
are
created
by
the

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