Difference between revisions of "Active Video Line LSB Register"

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(core 3.1.5 changes/refresh)
 
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|Readable=Yes
 
|Readable=Yes
 
|Writable=No
 
|Writable=No
|ShortDesc=Holds the 7 LSBs of the raster line currently being drawn.
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|ShortDesc=Holds the eight LSBs of the raster line currently being drawn.
 
}}
 
}}
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The MSB of the raster line is in {{NextRegNo|$1E}}.
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The line coordinates use coordinate system of [https://gitlab.com/thesmog358/tbblue/blob/master/docs/extra-hw/copper/COPPER-v0.1c.TXT Copper coprocessor], i.e. line 0 is the first line of pixels.
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Since core 3.1.5 the numbering of lines can be offseted by {{NextRegNo|$64}}.

Latest revision as of 08:21, 27 April 2020

Number $1F
Readable Yes
Writable No
Short Description Holds the eight LSBs of the raster line currently being drawn.

The MSB of the raster line is in Active Video Line MSB Register ($1E).

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 Vertical Video Line Offset Register ($64).