MODE &68

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MODE 104 is high-resolution screen MODE supported by the VideoNuLA hardware, selectable with the VideoNuLA ROM.

The MODE 104 code adapts the MODE 104 screen, adding extra colour bits to provide a 9-colour version of MODE 0, 80 × 32 characters in 9 colours.

'MODE 104 (&68+0)'
Type Bitmapped
Resolution Text 80 × 32 characters
Graphics
Character size 6 × 8 pixels
Pixel aspect 1:2 (tall)
Bits per pixel 4
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 20480 bytes
on screen 20480 bytes
Address range Model B etc. &3000..&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) 17:15, 22 February 2020 (CET)