MODE &6C

From BeebWiki
Revision as of 18:26, 22 February 2020 by Jgharston (Talk | contribs)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

MODE 108 is medium-resolution screen MODE supported by the VideoNuLA hardware, selectable with the VideoNuLA ROM.

The MODE 108 code adapts the MODE 4 screen, adding extra colour bits to provide a 9-colour version of MODE 4, 40 × 32 characters in 9 colours.

'MODE 108 (&68+4)'
Type Bitmapped
Resolution Text 80 × 32 characters
Graphics
Character size 5 × 8 pixels
Pixel aspect 1:2 (tall)
Bits per pixel 1
Default palette Logical colour Actual colour
0 0 (black)
1 1 (red)
2 2 (green)
3 3 (yellow)
4 4 (blue)
5 5 (magenta)
6 6 (cyan)
7 7 (white)
8 7 (white)
Memory allocated 10240 bytes
on screen 10240 bytes
Address range Model B etc. &5800..&7FFF
Configuration Video ULA control register
Video ULA palette register file
CRTC register file

References

Screen display MODEs

MODE 0 | MODE 1 | MODE 2 | MODE 3 | MODE 4 | MODE 5 | MODE 6 | MODE 7
MODE 8 | MODE 9 | MODE 10 | MODE 11 | MODE 12 | MODE 13 | MODE 14
MODE &60 | MODE &61 | MODE &63 | MODE &64 | MODE &66
MODE &68 | MODE &69 | MODE &6B | MODE &6C | MODE &6E
MODE | VDU 22

Jgharston (talk) 17:26, 22 February 2020 (CET)