VT100 emulation under NOS/VE

Controlling VT100 emulation and full screen mode

To activate VT100 emulation mode and turn on full screen mode under NOS/VE, use the command:

CHAnge_Terminal_Attribute Terminal_Model=DEC_VT100_GOLD

or, in abbreviated form:

chata tm=dec_vt100_gold

Using VT100 functions keys

All function keys are generated using the (emulated) VT100 keypad. On slow serial lines connected via CCP, all function keys must be followed by RETURN on the main keyboard to get processed. After typing a function key, spurious characters will show up on the display until the RETURN key has been processed. Typing a shifted / "0"-prefixed function key actually means typing the "0" key on the keypad before pressing the function key.

Layout of the VT100 keypad under NOS/VE

p1
PF1
NumLock p2
PF2
/ p3
PF3
* p4
PF4
-

k7
7
7 k8
8
8 k9
9
9 k-
-
Ctrl-+

k4
4
4 k5
5
5 k6
6
6 k,
,
+

k1
1
1 k2
2
2 k3
3
3 ke
Enter
Enter

0-Prefix
0
0 k.
.
.

p1 PF1 NumLock	p2 PF2 /	p3 PF3 *	p4 PF4 -
k7 7 7	k8 8 8	k9 9 9	k- - Ctrl-+
k4 4 4	k5 5 5	k6 6 6	k, , +
k1 1 1	k2 2 2	k3 3 3	ke Enter Enter
0-Prefix 0 0	k. . .

Legend of keys:

NOS/VE function key
Key on VT100
Key on PC keypad

Note: actual mapping of the keys between PC keypad and VT100 keypad depends on the emulation being used. In particular, mapping of VT100 keypad keys "-" and "," varies between different emulations as these keys share a single key on the PC keypad.