Active Video Line (LSB) Register: Difference between revisions

From SpecNext Wiki
Jump to: navigation, search
No edit summary
m Xalior moved page Active Video Line LSB Register to Active Video Line (LSB) Register: match formal nextreg.txt name
 
(5 intermediate revisions by 3 users not shown)
Line 3: Line 3:
|Readable=Yes
|Readable=Yes
|Writable=No
|Writable=No
|ShortDesc=Holds the 7 LSBs of the raster line currently being drawn.
|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 17:32, 13 October 2025

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

The MSB of the raster line is in {{#ask: TBRegisterNumber::$1E }} ($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 {{#ask: TBRegisterNumber::$64 }} ($64).