Active Video Line (MSB) Register: Difference between revisions
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core 3.1.5 changes/refresh |
m Xalior moved page Active Video Line MSB Register to Active Video Line (MSB) Register: match formal nextreg.txt name |
(No difference)
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Latest revision as of 17:32, 13 October 2025
| Number | TBRegisterNumber::$1E |
|---|---|
| Readable | TBRegisterReadable::Yes |
| Writable | TBRegisterWritable::No |
| Short Description | ShortDesc::Holds the MSB (only, as bit 0) of the raster line currently being drawn. |
The low 8 bit part of the raster line number is in {{#ask: TBRegisterNumber::$1F }} ($1F).
The line coordinates use coordinate system of Copper coprocessor, i.e. line 0 is the first line of pixels.
Since core 3.1.5 the numbering of lines can be offseted by {{#ask: TBRegisterNumber::$64 }} ($64).