(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
MODE 100 is medium-resolution screen MODE supported by the VideoNuLA
hardware, selectable with the VideoNuLA ROM.
The MODE 100 code adapts the MODE 4 screen, adding extra colour bits to provide a
5-colour version of MODE 4, 40 × 32 characters in 5 colours.
'MODE 100 (&60+4)'
Type
|
Bitmapped
|
Resolution
|
Text
|
40 × 32 characters
|
Graphics
|
|
Character size
|
6 × 8 pixels
|
Pixel aspect
|
1:1 (square)
|
Bits per pixel
|
4
|
Default palette
|
Logical colour
|
Actual colour
|
0
|
0 (black)
|
1
|
1 (red)
|
2
|
2 (green)
|
3
|
3 (yellow)
|
4
|
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
Jgharston (talk) 21:24, 17 February 2020 (CET)