Sticky bit: Difference between revisions
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The "sticky bit" is | The "sticky bit" is one of the per-sprite attributes stored in the [[Sprites|Sprite Control Bank 3]] (bit 6). | ||
{{16BitRegister|Y position|9|'''[[Sticky bit]]'''|1|?|1|Sprite size|5}} | |||
Setting it to 1 makes the corresponding sprite "stick" to the precedent one. | Setting it to 1 makes the corresponding sprite "stick" to the precedent one. | ||
The video hardware will automatically | The video hardware will automatically place it 16 to the left of the precedent sprite, use the same Y position, size and vertical shrinking coefficient. | ||
Only the horizontal | Only the horizontal shrinking coefficient is left independant. | ||
Sticky sprites can also be called "driven sprites". | Sticky sprites can also be called "driven sprites". | ||
[[Category:Video system]] | [[Category:Video system]] | ||
Revision as of 10:30, 10 February 2011
The "sticky bit" is one of the per-sprite attributes stored in the Sprite Control Bank 3 (bit 6).
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| Def | Y position | Sticky bit | ? | Sprite size | ||||||||||||
Setting it to 1 makes the corresponding sprite "stick" to the precedent one.
The video hardware will automatically place it 16 to the left of the precedent sprite, use the same Y position, size and vertical shrinking coefficient. Only the horizontal shrinking coefficient is left independant.
Sticky sprites can also be called "driven sprites".