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Radio Shack TRS-80 Model 4

Radio Shack TRS-80 Model 4
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VALe
string)
Calculates the numeric value
of
string. VAL terminates
its evaluation on the first character that has no
meaning
in a numeric term.
PR
I
NT
I,JAL
(
"1111111
DOLLARS")
VARPTR
variable
or
buffer
Returns the absolute memory address. When used
with a
variable, VARPTR returns the address of the
first byte of data identified with
variable. When used
with a
buffer. it returns the address
of
the file's data
buffer.
Y = USR1(t.JARPTR(X»
WAIT
port.
integerl
[,integer2]
Suspends program execution until a machine input
port
develops a specified bit pattern.
1111111
WAIT
32,2
WHILE
expression
WEND
Executes a series of statements
in
a loop as long as a
given condition is true.
WHILE
•••
WEND
WRITE
data,
...
Prints data
on
the display.
WRITE
A,B,C$
WRITE#
bUffer
data,
...
Writes data to a sequential file.
WRITE;;l,
A$
,B$
'10

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