Radio Shack TRS-80 X-PAD GT-116 - 10; Menu or Ala Carte?; Menu Routine

10/
Menu or
Ala
Carte?
An
X-Pad
Menu Lets you
define
certain
areas
of the
Writing
Surface for
special
purposes.
When
you select one
of the
pre-defined
Menu
areas, the routine
assigned
to
that
area
is
executed.
A
Menu can
be located in
the Display
Area
or
Menu Area
on
the
X-Pad.
The
following
program sets up
a
Menu in
the
Display Area.
This Menu
resembles the
keyboard
on
a
push-button
telephone:
rn9
Q00
mas
000
Figure
7.
Telephone
Keyboard
Menu Routine
10
CLSiREM
MENU
PROGRAM
20
GOSUB
250
30 IF
S<>3
THEN 20
40
R=INT(Y/28)+l:C=INT(X/2B)+l
50
IF
R>4 OR
C>3
THEN
230
31