pack.h

用systemC制作的快速付立叶变换

// pack.h
// Pierre Bomel - LESTER/UBS - janvier 2005
//    Formation chez France Telecom R&D
#include <systemc.h>

template <class T, int n>
// T = sample type
// n = number of samples to pack together
SC_MODULE(pack){
	sc_in<T> real, imag;
	sc_inout<T> reals[n], imags[n];
	int pos;
	T realtab[n], imagtab[n];
	void pack_it(){
		for(;;){
			wait();
			realtab[pos] = real.read();
			imagtab[pos] = imag.read();
			pos++;
			if (pos == n) {
				pos = 0;
				for(int i = 0; i < n; i++) {
					//cout << i << " pack " << realtab[i] << endl;
					reals[i].write(realtab[i]);
					//cout << i << " pack " << imagtab[i] << endl;
					imags[i].write(imagtab[i]);
				}
			}
		}
	}
	SC_CTOR(pack){
		pos = 0;
		SC_THREAD(pack_it);
		sensitive << real << imag;
	}
};