HUNTER OPERATION
SECTION 2.5
2,5. 1
2.5.2
VER.VO')F·
SCREEN
HUNTER has a large LCD (Liquid Crystal Display) screen. It can
present up to 320 characters on 8 line<! of 40 characters each,
just like a small video terminal,
The character set includes upper and lower case alphabets and
special characters. Additionally, a graphics display of 240 x
64 pixels is supported.
HUNTER 's display is designed for use in bright sunlight where
other displays (the red 'LED' or green 'vacuum flourescent', for
example) become invisible,
Because it works by contrast, rather than emittin~ its own
light,
it is perfectly visible no matter how bright the light
is, But a word of caution: try to avoid leaving HUNTER exposed
to direct sunlight for prolonged periods - the delicate
chemicals in the LCD can be damaged.
The 'Cursor' shows where data entered on the keyboard will
appear.
The screen is protected by an acrylic window, as strong as
glass. Like glass, it can be scratched, so please take care. The
window should only be cleaned with chamois or lens cleaning
cloth.
HUNTER is built to last - please take care of it.
SCREEN MODES
The screen can be used in two ways:
Text mode
Graphics mode
Text mode provides only character support with the standard 8
lines of 40 characters displayed. Internally, there is a
"virtual screen", see section 2.6, supporting 24 lines of 80
characters. This mode can support any standard CP/M program,
e.g. SuperCalc or dBase II.
It can be used in this fashion due
to the soeed at which the LCD screen can be refreshed in this
mode. This is the only mode supported for CP/M based programs.
Graphics mode will support characters of five different sizes,
reverse video and full graphic capabilities. There is no
"virtucl screen" associated with this mode.
It is only
supported frorr, Basic, see section 5.
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