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DSP1/Rotate: Difference between revisions
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Revision as of 16:29, 15 July 2023
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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
References
- Page 3-5-8 of Book II of the official Super Nintendo development manual