We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
DSP1/Rotate
From SnesLab
| 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
References
- Page 3-5-8 of Book II of the official Super Nintendo development manual