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VDG: Difference between revisions

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Redirected page to Video Display Generator
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The '''VDG''' or '''MC6847''' is the video display generator from Motorola used in the [[TRS-80 Color Computer]]
#REDIRECT [[Video Display Generator]]
 
It can display text and graphics within a matrix of 256 pixels wide by 192 lines high.
 
It can display a maximum of 9 colors: black, green, yellow, blue, red, buff (almost-but-not-quite white), cyan, magenta, and orange.
 
It is also used in the following computers of the time: [[Dragon 32/64]], [[Laser 200]] and [[Acorn Atom]].
 
{| class="wikitable"
! Video Mode !! Resolution !! Colors !! Bytes !! Shorthand !! PMODE !! SCREEN !! $FF22 value
|-
|Alphanumeric Internal
|32 × 16
|8 + Black
|512
|
|-
|Alphanumeric External
|32 × 16
|8 + Black
|512
|
|-
|Semigraphics 4
|64 × 32
|8 + Black
|512
|
|-
|Semigraphics 6
|64 × 48
|4 + Black
|512
|
|-
|Color Graphics 1
|64 × 64
|4
|1024
|
|-
|Resolution Graphics 1
|128 × 64
|Black & White
|1024
|
|-
|Color Graphics 2
|128 × 64
|4
|2048
|
|-
|Resolution Graphics 2
|128 × 96
|Black & White
|1536
|
|-
|Color Graphics 3
|128 × 96
|4
|3072
|
|-
|Resolution Graphics 3
|128 × 192
|Black & White
|3072
|
|-
|Color Graphics 6
|128 × 192
|4 (GYBR)
|6144
|6C0
|3
|1,0
|d0
|-
|Color Graphics 6
|128 × 192
|4 (WCMO)
|6144
|
|
|
|e0
|-
|Resolution Graphics 6
|256 × 192
|Green & White
|6144
|
|
|
|f0
|-
|Resolution Graphics 6
|256 × 192
|Black & White
|6144
|
|
|
|f8
|}
 
==See Also==
*[[Video Display Generator]]
*[[Motorola 6847]]
 
[[Category:Hardware]]

Latest revision as of 15:50, 14 April 2026

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