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we've been using the IQmath libraries and been taking advantage of the MATH_TYPE flag when compiling for the host and have noticed
some of the IQ function are missing for MATH_TYPE=1, (FLOAT_MATH)
they are trivial additions, but it would be nice if these got rolled back in to the next release.
thanks
in IQmath.h:
...
#else // MATH_TYPE == FLOAT_MATH
...
typedef float _iq0;
...
#define _IQ0(A) (A)
...
#define _IQ0toF(A) (A)
...
#define _IQNtoF(A,N) (A)
#define _FtoIQN(A,N) (A)
#define _IQXtoIQY(A,X,Y) (A)
#define _IQrsmpy(A,B,N) ((A)*(B))
#define _IQNmpyIQx(A,X,B,Y,N) ((A)*(B))
#define _IQNmpy(A,B,N) ((A)*(B))
#define _IQdiv(A,B,N) ((A)/(B))
#define _IQNabs(A) fabsf(A)
#define _IQNsqrt(A,N) sqrtf(A)
#define _IQNcos(A,N) cosf(A)
#define _IQNsin(A,N) sinf(A)
#define _IQNmag(A,B,N) sqrtf((A)*(A)+(B)*(B))
#define _IQNint(A,N) ((int)(A))
#define _IQNlog(A,N) logf(A)
there may still be other missing float functions, but those are the ones we used and found missing.
we also added a
#define _IQN(A,N) (A)
but that wasn't defined for MATH_TYPE=IQ_MATH
so also added:
#extern const I32_IQ IQuintTable[];
#define _IQN(A,N) ((I32_IQ) (A) * IQuintTable[(N)]))
with the appropriate addition of the IQuintTable[] in IQmathtables.c
unfortunately, that becomes a run-time multiply, but the code is way more maintainable to be able to use a #define for the radix
