BASIC PROGRAMMING SECTION ~.9
'LOCATE' The Locate command w~ll re-position the cursor in the
virtual screen and will move the window so that the
cursor remains visible.
4.9.4.2
Cursor Addressing
The cursor position can be commanded from a Basic program,
allowing characters to appear anywhere on the screen. Cursor
addressing is relative to the virtual screen, therefore
characters may not appear on the LCD screen in text mode.
The standard Basic format for cursor addressing is:
LOCATE X,Y
X and Y are the co-ordinate values expressed in decimal.
4.9.4.5
The Starxlard Header Page
All HUNTER programmes generated at HUSKY Computers feature a
standard header page. The header page supplies vital information
about the program and use of this format is strongly advocated
to other users.
The appearance of a suitable user header page would be:-
20 Oct
1983
11 :20:32'
OPTIONS
1
=
ENrER DATA
2
=
REVIEW DATA
3
=
AMEND DATA
4
=
TRANSMIT DATA
PLEASE ENrER OPTION NUMBER
?
4.9.4.6 Dynamic Screens
VER.V09F'
A vital ergonomic factor in HUNTER program design is
reassurance. Many, perhaps most, HUNTER operators have never
worked with any kind of computer before and are likely to have
some suspicion about this example of 'advanced technology•.
The crucial point is that HUNTER MUST COMMUNICATE WITH THE
OPERATOR.
If it doesn't he'll soon beco1T,e frustrated at some
situation he doesn't understand and resort to 'traditional'
solutions - gently encouraging
it with a series of sharp blows
or worse!
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