Function:

FSIN calculates the radial sine of the value in ST(0), leaving the result
in ST(0). Apparently the IIT FSIN functions according to Intel's 287xl
and 387+ specifications.

FCOS calculates the radial cosine of the value in ST(0), leaving the result
in ST(0). Apparently the IIT FCOS functions according to Intel's 287xl
and 387+ specifications.

Both these instructions are not officially supported by IIT for the 2c87.
Both instructions are available on Intel 287xl and 387+ processors using the
listed opcodes.




FDIV / FDIVP  Floating point division / divide & POP
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