We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
Sprite Line Buffer: Difference between revisions
From SnesLab
m (Jeffythedragonslayer moved page Render Line Buffer to Sprite Line Buffer: only sprites go into this buffer) |
(half-line buffers) |
||
| Line 1: | Line 1: | ||
The ''' | The '''Sprite Line Buffer''' is where sprites are pre-rendered to during [[hblank]] before being compositied together with the backgrounds. It is 256 pixels wide, and a total of 2304 bits. Internally, it is composed of two 128x9-bit half-line buffers (1152 bits each): one storing even-numbered pixels and the other odd. For each pixel, each half-line buffer stores: | ||
* four bits of color data | |||
* three bits for palette number | |||
* two priority bits | |||
Each of these half-line buffers are clocked at 10.7 MHz during writes and have their own address lines. | |||
[[Category:Video]] | [[Category:Video]] | ||
| Line 5: | Line 11: | ||
=== References === | === References === | ||
* https://forums.nesdev.org/viewtopic.php?p=288520#p288520 | * https://forums.nesdev.org/viewtopic.php?p=288520#p288520 | ||
* https://board.zsnes.com/phpBB3/viewtopic.php?p=204966#p204966 | |||
Revision as of 18:57, 1 July 2023
The Sprite Line Buffer is where sprites are pre-rendered to during hblank before being compositied together with the backgrounds. It is 256 pixels wide, and a total of 2304 bits. Internally, it is composed of two 128x9-bit half-line buffers (1152 bits each): one storing even-numbered pixels and the other odd. For each pixel, each half-line buffer stores:
- four bits of color data
- three bits for palette number
- two priority bits
Each of these half-line buffers are clocked at 10.7 MHz during writes and have their own address lines.