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VDG: Difference between revisions
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| Line 8: | Line 8: | ||
{| class="wikitable" | {| class="wikitable" | ||
! Video Mode !! Resolution !! | ! Video Mode !! Resolution !! Colors !! Bytes | ||
|- | |- | ||
|Alphanumeric Internal | |Alphanumeric Internal | ||
|32 × 16 | |32 × 16 | ||
| | |8 + Black | ||
|512 | |512 | ||
|- | |- | ||
|Alphanumeric External | |Alphanumeric External | ||
|32 × 16 | |32 × 16 | ||
| | |8 + Black | ||
|512 | |512 | ||
|- | |- | ||
| Line 37: | Line 37: | ||
|Resolution Graphics 1 | |Resolution Graphics 1 | ||
|128 × 64 | |128 × 64 | ||
| | |Black & White | ||
|1024 | |1024 | ||
|- | |- | ||
| Line 47: | Line 47: | ||
|Resolution Graphics 2 | |Resolution Graphics 2 | ||
|128 × 96 | |128 × 96 | ||
| | |Black & White | ||
|1536 | |1536 | ||
|- | |- | ||
| Line 57: | Line 57: | ||
|Resolution Graphics 3 | |Resolution Graphics 3 | ||
|128 × 192 | |128 × 192 | ||
| | |Black & White | ||
|3072 | |3072 | ||
|- | |- | ||
| Line 67: | Line 67: | ||
|Resolution Graphics 6 | |Resolution Graphics 6 | ||
|256 × 192 | |256 × 192 | ||
| | |Black & White | ||
|6144 | |6144 | ||
|} | |} | ||
Revision as of 07:31, 14 May 2013
The VDG or MC6847 is the video display generator from Motorola used in the TRS-80 Color Computer
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.
| Video Mode | Resolution | Colors | Bytes |
|---|---|---|---|
| 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 | 6144 |
| Resolution Graphics 6 | 256 × 192 | Black & White | 6144 |
