Radio Shack TRS-80 100 Quick Reference Manual page 7

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The
BASIC
Interpreter
(BASIC)
Starling the
BASIC
Interpreter
Program
Towseifie BASIC
Interpreter, yon
may
either petition
iha
Menu
Cursor
on too
of
the
word BASIC, ot on
lop
olaBAStC Program
filename-
Then
MhOI
Special Kays
In
the
Command
Mode
ot BASIC
(JUL
Prints the
delinttio-is ol
me
(uncion
Keys
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Bffffl!
The
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of typing
in
LUS
T
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The
eouvatant
of Typing in
Files INIlfl
The
eq
walemt
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in
Loa d
"
The
equvawm
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in
Save
"
Treaouwaianl
ot typing
in
Run
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Theeo«iv*leinto( typing
in
bet
TMTIB
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The
equivalent of typing
in
Menu
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Kayooat
d
Input
iiy
ooiajis
Special
Keys
In
the
Execute
Mode
of
BASIC
MEAK Slops execution
of
the current
command. You
can
restart
many c ommands
**er*
they lad
o" by
typ ing
COnT
iHTEHi.
PAUSE Tempacanh/ slope execution
g
I the
current
command.
To
continue
.
simply press 7MKEJ again.
The
is panJcularty
naipM when
lha
Scoan
is
changing; rapidly,
iot
example.
©nauST
NumerBc and
Strl
ng
O
peratore
+
Addition
©i
Unary
Pius (Numeric)
ot
Con-
catenation
(
Stnng)
SubtrBttonof Unary Mrius
*
Muftcbeaiion
/
Division
Image
iDivts»on
Exponentaition
MOD
fvtodolus Arithmetic
Relation el
Operators
<
Less
than
>
Greater than
=
Equal
<
=
or
=
< less
than or equal
lo
> =
or
=
>Groalerlhanor
equal to
< > or
x
Nol equal
lo
Logical
Operators
AND
OR
xon
COV
IMP
NOT
Logrca
ANDoperation
Log**
OP
operation
ExcluWeOXoperabon
Equivalence
o
pe
rati
on
im
plicati
on
operation
Logical
NOT&£*r*t.rtn
Operator Hierarchy
Parentheses
-
.- (una"/
plus
and minus)
MOD
4.-
<,>,,
>,<,><
NOT
AND
OR
XOR
EOV
IMP
(Note
:
Within
an
expression, operators
on
the
same
ievel
are
evaluated from
left
lo right with the exception
ol
parentheses
.
which art evaluated from
inside to outside.)
Data
Ranges
Integers.
-32766to32767
Single Precision: : IO
M
lo
zIO
62
(6
Stgnificanl
Dtgits)
Double
Precision:
-r
10**
to
r
10"
f,t4
Significant Digits)
Strings.
lo
255
characters.
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