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Section D:
CRT Interface
D.4.9. Mask Graphics Mode
The
TeleVideo implementation gives you the possibility to draw masks of
lines on the screen. To enter this special mode use
TV950:
<ESC> <'$'>
and
<ESC> <'%'>
to exit it.
I f
this mode is active, any alpha-numeric character
'A'
to 'P' resp.
'a'
to
'p'
is
converted to one of 16 pseudo graphic
A
B
c
D
E
F
G
H
I
J
K
L
M
I.
r
1
J
L
r
,
..J
t
1
r
0.4.10. Special Screen and Keyboard Modes
CRT colour mode
CRT extra characterset
keyboard "Caps lock"
TV950:
ESC 'C' <n>
ESC
1
3
1
<n>
ESC '4' <n>
characters:
N
0
p
T
.L
ADM3A:
ESC 'C' <n>
ESC 'D' <n>
ESC 'E' <n>
Where <n>
=
'0' - Mode is switched off
and
'l' - Mode is switched on.
D.4.11. Clock Display On/Off
In
TeleVideo
mode,
the current date and time can be displayed in
the
status line. Several modes are available:
TV950:
<ESC> <'@'> <n>
where
<n>
'0'
Clock- "on''
'1'
>
'1'
Clock- "off"
Clock-
11
off'' is locked
If
the
parameter
switched on/off by
specified is '0' or '1',
the clock display
=> control function <Ctrl-3>.
D.4.12. Window Scrolling
TV950:
ADM3A:
<ESC> <'7'> <Yl+20h> <Xl+20h> <Y2+20h> <X2+20h>
<ESC> <'H'> <Yl+20h> <Xl+20h> <Y2+20h> <X2+20h>
can
be
With
every call the window with edges Xl,Yl and X2,Y2 is moved
by
one
line
in
vertical direction.
It. is moved up if Yl is
bigger
than
Y2
otherwise
down.
The
first line (Yl)
is always lost and the last
line
(Y2)
is blanked afterwards.
EOS System manual
Daeumling & Zimmermann
Page 191
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