Active Video Line MSB Register
From SpecNext official Wiki
Revision as of 18:55, 1 January 2019 by wiki>Ped7g (further details from Jim in forum post)
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 Active Video Line LSB Register ($1F).
The line coordinates use coordinate system of Copper coprocessor, i.e. line 0 is the first line of pixels.