Difference between revisions of "Active Video Line LSB Register"
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{{NextRegister | {{NextRegister | ||
| − | |Number=$ | + | |Number=$1F |
|Readable=Yes | |Readable=Yes | ||
|Writable=No | |Writable=No | ||
| + | |ShortDesc=Holds the eight LSBs of the raster line currently being drawn. | ||
}} | }} | ||
| + | The MSB of the raster line is in {{NextRegNo|$1E}}. | ||
| + | |||
| + | 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. | ||
| + | |||
| + | 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).