list.1.txt

This archive contains circuit diagram and text documents making up the design of audio spectrum anal

#ifndef FIX_H
#define FIX_H

extern const int q;     //exponent

//fixed point number type
typedef int fix;        //mantissa (interpreted as fixed point number with exponent q)

//arithmetic operations
#define FADD(a,b)       ((a)+(b))
#define FSUB(a,b)       ((a)-(b))
#define FMUL(a,b,q)     (((a)*(b))>>(q))
#define FDIV(a,b,q)     (((a)<<(q))/(b))

#endif