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GSX-86 Device Specific Information
K-16
VT100 WITH DIGITAL ENGINEERING RETRO-GRAPHICS
FILENAME
DDVRET,SYS
DEVICE INDEX
The actual device index for this device is determined
in the ASSIGN.SYS,file, which associates a device
index with a GIOS, module (device driver).
MAXIMUM BAUD RATE
9600 baud for all graphics
COMMUNICATIONS
Standard serial communications (RS-232C). The
VT100 uses
XON/XOFF
flagging to avoid losing
data at high baud rates.
GRAPHIC INPUT (GIN)
When GIN is invoked on the VT100 Retro-Graphics
terminal, a crosshair cursor appears on the screen.
The crosshair can be moved by pressing one of the
four cursor movement keys (up, down, left, right) on
the top row of keys on the keyboard. When the
cursor is at the desired location, the point can be
selected by pressing any alphanumeric key (other
than RETURN). This ,causes the coordinates of the
point to be transmitted back to the user program.
The terminal must be set up so that GIN is termi-
nated by CR only. This can be done by setting the
two trailer codes in Retro-Graphics set-up mode to
OD hex and FF hex respectively. Refer to the instruc-
tions in the User Manual for Retro-Graphics Model
VT640, "Set Up Procedures," for a further discussion
of trailer characters.
TEXT
The VT100 has four character sizes. It cannot rotate
text.
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