Hello. Is it possible anyone here could help me with my problem?

I'm doing a little assembly language programming for an old processor. But because it's old it doesn't have any instructions for performing anything but basic functions.

Could somebody please explain how I could work out things like Sine, Cosine and Tangent functions, when all I can do is add, subtract, multiply and divide?

Any help or pointers would be much appreciated.

Thank you in advance.

Google for CORDIC algorithms

CB

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Giordano Bruno

Thank you