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MODE 97 is medium-resolution screen MODE supported by the VideoNuLA
hardware, selectable with the VideoNuLA ROM.
The MODE 97 code adapts the MODE 1 screen, adding extra colour bits to provide a
13-colour version of MODE 1, 40 × 32 characters in 13 colours.
'MODE 97 (&60+1)'
| Type
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Bitmapped
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| Resolution
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Text
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40 × 32 characters
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| Graphics
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| Character size
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6 × 8 pixels
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| Pixel aspect
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1:1 (square)
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| Bits per pixel
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4
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| Default palette
|
Logical colour
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Actual colour
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| 0
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0 (black)
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| 1
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1 (red)
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| 2
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2 (green)
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| 3
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3 (yellow)
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| 4
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4 (blue)
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| 5
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5 (magenta)
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| 6
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6 (cyan)
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| 7
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7 (white)
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| 8
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7 (white)
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| 9
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6 (cyan)
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| 10
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2 (green)
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| 11
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1 (red)
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| 12
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0 (black)
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| Memory
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allocated
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20480 bytes
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| on screen
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20480 bytes
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| Address range
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Model B etc.
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&3000..&7FFF
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| Configuration
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Video ULA control register
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| Video ULA palette register file
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| CRTC register file
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References
Jgharston (talk) 21:13, 17 February 2020 (CET)
