1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
================================================================================
# #
# Function key mapping for the "more VT220" - like layout #
# #
================================================================================
I. Special Keys Used To Change The General Runtime Functionality
=====================================================================
CTRL-F9 Function key labels ON / OFF
------------------------------------
this key is only operational, when in HP/VT mode, see CTRL-F11
CTRL-F9 toggles between function key labels displayed or not.
ON: screen has either 25-3 = 22, 28-3 = 25 or 50-3 = 47 lines
2 lines fkey labels displayed
row/col display enabled
1 line status/load avg line
OFF: screen has either 25-3 = 22, 28-3 = 25 or 50-3 = 47 lines
no function key labels displayed
no row/col display
no status/load avg line
applicable escape sequences:
switch OFF:
ESC & j @ remove labels from screen
switch ON:
ESC & j A display system fkey labels
ESC & j B display user fkey labels
ESC & j C display current fkey labels
CTRL-F10 User / System Function key labels
-------------------------------------------------
this key is only operational, when in HP/VT mode, see CTRL-F11
CTRL-F10 toggles between the display of user or system
function key labels
this key is only active if labels are toggled on via
the CTRL-F9 function key
screen has either 25-3 = 22, 28-3 = 25 or 50-3 = 47 lines
2 lines fkey labels displayed
row/col display enabled
1 line status/load avg line
applicable escape sequences: (see above)
ESC & j A display system fkey labels
ESC & j B display user fkey labels
ESC & j C display current fkey labels
CTRL-F11 Toggle between pure VT and HP-VT Emulation
----------------------------------------------------------
This key switches between pure vt100/vt220 mode and
vt100/vt220 with hp-fkey-labels mode of operation.
this is not dependent of any screen resolution the
virtual consoles are in.
initially, after power on, all virtual screens are in
the pure vt-mode:
- the emulator does not execute any hp escape sequences
- the function key label lines are switched off
- no load average or status line is displayed
- no row / column counter is displayed
- the full screen 25x80, 28x80 or 50x80 is usable
- CTRL-F9 and CTRL-F10 have no function
when toggled to the vt/hp mix of operation, the following
changes take place:
- the emulator executes the supported hp-esc sequences
- the function key labels are displayable depending
on the state of CTRL-F9/CTRL-F10
- the load average is displayed
- the row / column counters are displayed
- in any screen resolution, the last 3 lines are lost,
so one has a 22x80, 25x80 and 47x80 resolution
- CTRL-F9 and CTRL-F10 are operational.
when switching modes by means of CTRL-F11, the following
changes to the current environment, the emulator may
be in, apply:
- the screen is cleared
- the cursor moves to the home position
- the scrolling region is reset to default
(this functionality is available via an ioctl)
F5 Cycle current page
--------------------------
This key cycles through the display of the video
pages. on startup, page 0 is displayed; with every
keypress of F5, the next page is displayed, wrapping
from the maximum page number back to page 0.
F1 switches to page 0
F2 switches to page 1
F3 switches to page 2
F4 switches to page 3
Shift-F1 -- select screen 4
Shift-F2 -- select screen 5
Shift-F3 -- select screen 6
Shift-F4 -- select screen 7
Shift-F5 -- select (current screen - 1)
(this functionality is available via an ioctl)
II. Special Keys used to change the Runtime Functionality of a Page
=======================================================================
when in mixed HP/VT mode, one has two types of function key labels
on screen, user function keys and system function keys. they are
accessed by using the CTRL key while pressing a function key.
the function key labels are NOT available in pure VT220 mode--although
the function keys are still active
the user function keys and their labels can be reprogrammed by use of
escape sequences.
in system function key mode, several pre-programmed functions inside
the emulator can be toggled, currently implemented are:
- CTRL-F1, toggle 80/132 columns
- CTRL-F2, soft reset emulator
- CTRL-F3, toggle force 24 lines mode
- CTRL-F4, toggle keyboard debugging (if compiled in)
- CTRL-F5, toggle the audible beep generation
- CTRL-F6, toggle 7/8 bit char width
- CTRL-F7, toggle display functions. this means that control codes
in the range 0x00 to 0x1f are not EXECUTED by the emulator
any longer, but displayed on the screen
- CTRL-F8, toggle automatic cursor wraparound at end of line
these functions operate just for the selected page
III. Keyboard VT220 compatibility
====================================
The following keys behave different as probably expected.
They were mapped to provide more VT220 compatibility.
PC Keyboard VT220 Keyboard
------------- --------------------------------------------------
F6 - F12 emit the sequences for VT220 F6 - F12 keys
(ESC [ 17 ~ .... ESC [ 24 ~)
ALT F1 - F10 emit the sequences for VT220 F11 - F14, HELP, DO,
F17 - F20 keys
(ESC [ 23 ~ .... ESC [ 34 ~)
SHIFT F6 - F12 emit the User Definable Key sequences for VT220
F6 - F12 keys or
(ESC [ 17 ~ .... ESC [ 24 ~) for cleared sequences
ALTSHIFT F1-F10 emit the User Definable Key sequences for VT220
F11 - F14, HELP, DO, F17 - F20 keys or
(ESC [ 23 ~ .... ESC [ 34 ~) for cleared sequences
Insert Insert Here (ESC [ 2 ~)
Delete Remove (ESC [ 3 ~)
Home Find (ESC [ 1 ~)
End Select (ESC [ 4 ~)
PgUp Prev Screen (ESC [ 5 ~)
PgDn Next Screen (ESC [ 6 ~)
PrtSc (ignored)
Pause (ignored)
Break (ignored)
Cursor Keys dependent upon state of cursor key mode either
ESC [ A ... ESC [ D or ESC O A ... ESC O D
NumLock toggles Numeric Keypad for Keypad Numeric Mode
and Keypad Application Mode
ALT-Keypad-0 can be used to generate any keycode in the
ALT-Keypad-1 rage 0-255.
ALT-Keypad-2 this was modeled with the behaviour of a
ALT-Keypad-3 popular boot loader in mind
ALT-Keypad-4
ALT-Keypad-5
ALT-Keypad-6
ALT-Keypad-7
ALT-Keypad-8
ALT-Keypad-9
Numeric Keypad dependent upon state of keypad numeric/application
mode either 0 ... 9 or ESC O p ... ESC O y
ALT-NumLock emits PF1 sequence (ESC O P)
ALT-Keypad-/ emits PF2 sequence (ESC O Q)
ALT-Keypad-* emits PF3 sequence (ESC O R)
ALT-Keypad-- emits PF4 sequence (ESC O S)
ALT-F11 emits PF1 sequence (ESC O P)
ALT-F12 emits PF2 sequence (ESC O Q)
/* EOF */
|
