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 |
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(No difference)
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Latest revision as of 17:32, 13 October 2025
| Next Register Number | $1E |
|---|---|
| Readable | Yes |
| Writable | No |
| Short Description | 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 NextReg:$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 NextReg:$64.