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VDG: Difference between revisions
From CoCopedia - The Tandy/Radio Shack Color Computer Wiki
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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.
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| | |
| It can display a maximum of 9 colors: black, green, yellow, blue, red, buff (almost-but-not-quite white), cyan, magenta, and orange.
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| It is also used in the following computers of the time: [[Dragon 32/64]], [[Laser 200]] and [[Acorn Atom]].
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| | |
| {| class="wikitable"
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| ! Video Mode !! Resolution !! Colors !! Bytes !! Shorthand !! PMODE !! SCREEN !! $FF22 value
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| |-
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| |Alphanumeric Internal
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| |32 × 16
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| |8 + Black
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| |512
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| |
| |
| |-
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| |Alphanumeric External
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| |32 × 16
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| |8 + Black
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| |512
| |
| |
| |
| |-
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| |Semigraphics 4
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| |64 × 32
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| |8 + Black
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| |512
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| |
| |
| |-
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| |Semigraphics 6
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| |64 × 48
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| |4 + Black
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| |512
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| |
| |
| |-
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| |Color Graphics 1
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| |64 × 64
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| |4
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| |1024
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| |
| |
| |-
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| |Resolution Graphics 1
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| |128 × 64
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| |Black & White
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| |1024
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| |
| |
| |-
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| |Color Graphics 2
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| |128 × 64
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| |4
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| |2048
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| |
| |
| |-
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| |Resolution Graphics 2
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| |128 × 96
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| |Black & White
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| |1536
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| |
| |
| |-
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| |Color Graphics 3
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| |128 × 96
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| |4
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| |3072
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| |
| |
| |-
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| |Resolution Graphics 3
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| |128 × 192
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| |Black & White
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| |3072
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| |
| |
| |-
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| |Color Graphics 6
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| |128 × 192
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| |4 (GYBR)
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| |6144
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| |6C0
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| |3
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| |1,0
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| |-
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| |Color Graphics 6
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| |128 × 192
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| |4 (WCMO)
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| |6144
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| |
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| |-
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| |Resolution Graphics 6
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| |256 × 192
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| |Black & White
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| |6144
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| |
| |}
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Latest revision as of 15:50, 14 April 2026
