3 3d4 00 Horizontal total
\r
4 3d4 01 Horizontal disp. enable
\r
5 3d4 02 Horizontal blank start
\r
6 3d4 03 Horizontal blank end
\r
7 3d4 04 Horizontal retrace start
\r
8 3d4 05 Horizontal retrace end
\r
9 3d4 06 Vertical total
\r
10 3d4 07 Overflow register
\r
11 3d4 08 Preset row scan
\r
12 3d4 09 Max scan line/char ht.
\r
13 3d4 10 Vertical retrace start
\r
14 3d4 11 Vertical retrace end
\r
15 3d4 12 Vert. disp. enable end
\r
16 3d4 13 Offset/Logical width
\r
17 3d4 14 Underline location
\r
18 3d4 15 Vertical blank start
\r
19 3d4 16 Vertical blank end
\r
21 3c4 01 Clock mode register
\r
22 3c4 02 Color plane write enable
\r
23 3c4 03 Character gen. select
\r
24 3c4 04 Memory mode register
\r
25 3ce 00 Set/reset register
\r
26 3ce 01 Set/reset enable
\r
27 3ce 02 Color compare
\r
28 3ce 03 Data rotate & function
\r
29 3ce 05 Mode register
\r
30 3ce 06 Miscellaneous register
\r
31 3ce 07 Color don't care
\r
32 3ce 08 Bit mask register
\r
34 3c0 11 Screen border colour
\r
35 3c0 12 Color plane enable
\r
36 3c0 13 Horizontal panning
\r
38 103 00 C&T: multiple enable
\r
39 3d6 00 C&T: chip/revision info
\r
40 3d6 01 C&T: DIP switch states
\r
41 3d6 02 C&T: cpu interface
\r
42 3d6 04 C&T: memory mapping
\r
43 3d6 0b C&T: CPU paging
\r
44 3d6 14 C&T: emulation mode
\r
45 3d6 2b C&T: default video reg.
\r
46 46e8 00 C&T: setup control
\r