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DSP1/Rotate: Difference between revisions
From SnesLab
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(see also Polar) |
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* '''x2''' is the x coordinate after rotation | * '''x2''' is the x coordinate after rotation | ||
* '''y2''' is the y coordinate after rotation | * '''y2''' is the y coordinate after rotation | ||
=== See Also === | |||
* [[Polar]] | |||
=== References === | === References === | ||
Revision as of 17:12, 15 July 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Opcode | 0C | ||||||
| Speed | 64 cycles | ||||||
Rotate is a DSP1 command that performs a counterclockwise two-dimensional coordinate rotation of a point about the origin.
Input Parameters
- θ is the angle of rotation about the Z axis
- x1 is the x coordinate before rotation
- y1 is the x coordinate before rotation
Output Parameters
- x2 is the x coordinate after rotation
- y2 is the y coordinate after rotation
See Also
References
- Page 3-5-8 of Book II of the official Super Nintendo development manual