P. 24
VARIABLES
A through Z Up to 6 significant digits
A(n) 4 bytes per subscript, from 0 to MEM/4
A$ and 3$ Character strings up to 16 characters
SYNTAX
A colon (:) must separate all statements on the same line (except
the first statement following an IF statement; in this case no
colon is allowed).
All parentheses, commas and semi-colons used in the examples, must
be used exactly as indicated. Improper punctuation will result in
an error message or improper execution of the program.
All lines must begin with a line number. Information on a line may
be up to 72 characters long. In this case, the screen display will
overflow onto the next line, but the Computer will interpret it as
one line of information.
LIMITS AND EXCEPTIONS
Line numbers must not exceed 32,767. A$ and B$ can not be used
in expressions causing logical equations (eg. Computer can not
compare A$ with B$).
ERROR MESSAGES
WHAT? The Computer does not understand the instruction. This
can be caused by misspelling or improper syntax or punctuation.
HOW? The Computer understands the instruction but can not
execute it. This can be caused by a GOTO with no line
number to branch to, an integer wich exceeds 32,767 or
a divide bv 0.
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