AT&T 6300 Programmer's Manual page 159

CHR$
CINT
CIRCLE
CLEAR
CLOSE
CLS
COLOR
COM(n)
COMMON
CONT
Introduction
Returns a one-character string whose ASCII
decimal code is the value of the argument passed
to this function.
Converts any numeric argument to an integer by
rounding the fractional portion.
Draws a circle or an ellipse with the specified
center and radius. (Graphics Mode.)
Clears all numeric variables to zero, all string
variables to null, and closes all open files.
Options set the highest memory location
available for use by GWBASIC and set the
amount of stack space.
Terminates I/O to a file or device.
Erases all or part of the screen.
In the Text Mode, sets the foreground and
background colors. In Graphics Mode, defines the
background and foreground palette colors.
Enables or disables event trapping of
communications activity on the specified channel.
Defines the common area that is not erased by a
CHAINed program, and allows you to pass
variables from one program to another.
Resumes program execution after a
CTRL-BREAK has been typed or a STOP or
END statement has been executed.
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