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S-PPU1: Difference between revisions
From SnesLab
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[[File:PPU1-with-boxes-thumb.jpg|thumb|S-PPU1 die shot with regions numbered]] | |||
'''S-PPU1''' is the first of the two PPUs in 2chip consoles. It has part number 21322. Little is known about how S-PPU1 works; for most regions of the die there is only speculation about their function. | '''S-PPU1''' is the first of the two PPUs in 2chip consoles. It has part number 21322. Little is known about how S-PPU1 works; for most regions of the die there is only speculation about their function. | ||
=== Legend === | === Legend === | ||
* 1 & 2 - OAM | * 1 & 2 - [[OAM]] | ||
* 5 & 6 - [[Sprite Line Buffer]] | * 5 & 6 - [[Sprite Line Buffer]] | ||
* 10 - combining sprite + layer? | * 10 - combining sprite + layer? | ||
| Line 11: | Line 11: | ||
=== See Also === | === See Also === | ||
* [[S-PPU2]] | * [[S-PPU2]] | ||
* [[Mode 7]] | |||
=== References === | === References === | ||
* https://forums.nesdev.org/viewtopic.php?p=279840#p279840 | * https://forums.nesdev.org/viewtopic.php?p=279840#p279840 | ||
* paragraph 22.2 on [https://archive.org/details/SNESDevManual/book1/page/n97 page 2-22-1 of Book I] of the official Super Nintendo development manual | |||
[[Category:SNES Hardware]] | [[Category:SNES Hardware]] | ||
Latest revision as of 19:45, 12 August 2024
S-PPU1 is the first of the two PPUs in 2chip consoles. It has part number 21322. Little is known about how S-PPU1 works; for most regions of the die there is only speculation about their function.
Legend
- 1 & 2 - OAM
- 5 & 6 - Sprite Line Buffer
- 10 - combining sprite + layer?
- 12 - registers?
See Also
References
- https://forums.nesdev.org/viewtopic.php?p=279840#p279840
- paragraph 22.2 on page 2-22-1 of Book I of the official Super Nintendo development manual