Radio Shack TRS-80 Service Manual page 15

Execution stop STOP STOP
Stops the execution of a program tem-
porarily to bring the system into a key-
in wait state. The execution can be
continued by pressing the
I
EXE
I
key.
Execution end END
END Signifies the end of a program; the
system returns to its pre-execution
state. The execution of a program, once
ended, cannot be continued even if the
It@
key is pressed.
.
Data clearing VAC VAC
Clears all variable data for a program.
.
Program listing LIST LIST [line no.)
Displays a listing of all the statements in
a program from the designated line
number downward .
.
All program LIST A LIST A
Displays a listing of the statements in all
listing programs.
Program RUN RUN [line no.l
Causes a program to start from the
execution
designated line number.
Program
CLEAR CLEAR
Clears the currently designated program
erasing
area of a program.
CLEAR A CLEAR A
Clears all the programs.
Angular unit MODE
m
Designates trigonometric angular units as
designation
MODE degree (4), radian (5) or gradient (6).
Format SET
SETU~}
Designates the number of effective
designation
positions or number of decimal positions
(O~n ~9)
for the displayed numerical value.
,.,
Character LEN LEN (character variable) Calculates the size of the character
function
variable.
. - - - _
•.
-
...
..
. - . _ - - - ,
MID MID (m Ln))
Extracts n characters from the mth
character in the exclusive character
variable (S).
VAL VAL (character variable)
Converts the numbers in a character
variable to a numerical value.
.
,.
Option use SAVE SAVE ["filename")
Records only the program in the
currently designated program area on
tape.
..
. .
LOAD
LOAD ["filename")
Calls out the program from the tape and
loads it to the currently designated
program area.
SAVE A
SAVE A ["filename")
Records the programs in all program
areas on tape at the same time.
LOAD A LOAD A ["filename")
Calls out all programs from the tape and
loads them to the respective program
areas.
PUT PUT ["filename")
Records the data in the variable on tape.
variable
GET GET ["filename") variable
Calls out the data from the tape and
loads it in the variable.
VER VER ["filename")
Checks to confirm that the programs
or data have been recorded on the tape
properly.
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