The Asc And Ch R$ Commands; Converting Strings And Numbers - Commodore 128D User Manual

Each number generated represents one toss of a die. To simulate a
pair of dice, use two commands of this nature. Each number is gen
erated separately, and the sum of the two numbers represents the
total of the dice.
The ASC and CHR$ Functions
Every character that the Commodore 128 can display (including
graphic characters) has a number assigned to it. This number is
called a character string code (CHR$) and there are 256 of them in
the Commodore 128. There are two functions associated with this
concept that are very useful. The first is the ASC function. Type:
The computer responds with 81.81 is the character string code for
the Q key. Substitute any character for Q in the command above to
find out the Commodore ASCII code number for that character.
The second function is the CHR$ function. Type:
The computer responds with Q. In effect, the CHR$ function is the
opposite of the ASC function. They both refer to the table of charac
ter string codes in the computer's memory. CHR$ values can be
used to program function keys. See Section 5 for more information
about this use of CHR$. See Appendix E of this Guide for a full listing
of ASC and CHR$ codes.
Converting Strings and Numbers
Sometimes you may need to perform calculations on numeric char
acters that are stored as string variables in your program. Other
times, you may want to perform string operations on numbers. There
are two BASIC functions you can use to convert your variables from
numeric to string type and vice versa.
69 USING C128 MODE-Advanced BASIC Programming