Radio Shack TRS-80 model III Owner's Manual page 78

TRSDOS
I
HERZ50
Set
Up
for
50
Hz
AC
power (non-USA
users)
starts
Vm
utility
to
change
the
system
for
50 Hz
operation,
mmm
is
a bo-
:
:
:>r-
fife.
This
utility
is
provided
for customers
in
areas
where
the
AC power
is
50
rather
than
60 Hz.
It
should not be used by any
other customers,
herzso simply
places
a patch
on
the diskette
that
changes
the clock speed
for
50
Hz
users.
herzso
is
a
do
file
that
makes
a
change
in the
software of trsdos. Only
the
Drive
diskette
is
changed.
Be
sure
it is
write-enabled before you
start
the
do-
file.
Once
the
herzso change
is
done,
it
will
remain
in effect for that diskette.
To perform
the
change,
type:
DO
HERZ50
Once
the
change
has
been made, you
will
need
to reset the
system
to
put the
change
into effect.
This
loads the
new
software
into
ram.
LPC
Line
Printer Control
LPC
The
lpc
utility
program
allows
trsdos
to
ignore multiple carriage
return
commands.
Without
lpc, a top-of-form (LPRiNTCHR$(i2))
command
will
add
an
extra carriage return/line feed each time
it is
executed. Also, lpc masks
the high
bit
of each
data byte, allowing
you
to
send
certain intercepted
codes
to
the
printer.
For
instance, the basic statement lprintchr$o40)
will
send code 140-
128=
12 (LPRiNTCHR$(i2))
to the Printer.
71