Radio Shack TRS-80 Model III - Page 30

s
TRS-80 MODEL III
^
Special Keys
, continued.
(BREAK)
(SHIFT)
ff)R
Interrapts the
current program or operation and
prepares the
Computer
for
another keyboard
command.
Use to cancel
a cassette or line printer operation,
or to
break out of a BASIC program
.
Activates
the Print Screen
function, copies the
contents
of the Screen to
the Printer. Press (BREAK) to
terminate
this function
and return to the immediate
mode.
Other Features
Every
key
has
a repeat
feature: when
you
hold
a key
down
for approximately
one
second,
that key begins
producing
a
stream
of
characters.
The keyboard includes
a 1 2-key section
for
convenient
numeric entry. Each
of
these
keys is equivalent
to the matching
key on
the
standard keyboard section
.
Control
Codes*
*
If you are
unfamiliar with the concept
of character codes,
see
the ASCII
entry in the
Glossary (Appendix).
Also
see
the
table of character codes in the
Appendix.
You can
produce 32 special
control characters (ASCII
Codes
0-31)
from the
Keyboard.
For example,
Key
e
©
CD
(ENTER)
ASCII
Name
Co
Backspace
8
Tab
9
Line Feed
10
Carriage Return
13
20