Constructeur Données membres, l’interface Nom du module half_adder.h // File : half_adder.h #include "systemc.h" SC_MODULE(half_adder) { sc_in a,b; sc_out.

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Constructeur Données membres, l’interface Nom du module half_adder.h // File : half_adder.h #include "systemc.h" SC_MODULE(half_adder) { sc_in a,b; sc_out sum,carry; void prc_half_adder(); SC_CTOR(half_adder) { SC_METHOD(prc_half_adder); sensitive << a << b; } }; half_adder.h

SC_METHOD (1) // File : half_adder.h #include "systemc.h" SC_MODULE(half_adder) { sc_in a,b; sc_out sum,carry; void prc_half_adder(); SC_CTOR(half_adder) { SC_METHOD(prc_half_adder); sensitive << a << b; } }; Déclare un process sans mémoire appelé prc_half_adder() Ne peut utiliser les wait Sensibilité « statique » sur a et b

SC_METHOD (2) // File : half_adder.cpp #include "half_adder.h" void half_adder::prc_half_adder() { sum = a ^ b; carry = a & b; }

Description de la hiérarchie // File : full_adder.h #include "half_adder.h" SC_MODULE(full_adder) { sc_in a,b,carry_in; sc_out sum,carry_out; sc_signal c1,s1,c2; void prc_or(); half_adder *ha1_ptr,*ha2_ptr; SC_CTOR(full_adder) { ha1_ptr=new half_adder("ha1"); // Named association: ha1_ptr->a(a); ha1_ptr->b(b); ha1_ptr->sum(s1); ha1_ptr->carry(c1); ha2_ptr=new half_adder("ha2"); // Positional association: (*ha2_ptr)(s1,carry_in,sum,c2); SC_METHOD(prc_or); sensitive << c1 << c2; } // A destructor ~full_adder() { delete ha1_ptr; delete ha2_ptr; } }; // File : full_adder.cpp #include "full_adder.h" void full_adder::prc_or() { carry_out = c1 | c2; }

driver.h, driver.cpp // File : driver.h #include "systemc.h" SC_MODULE(driver) { sc_out d_a,d_b,d_cin; void prc_driver(); SC_CTOR(driver) { SC_THREAD(prc_driver); } }; // File : driver.cpp #include "driver.h" void driver::prc_driver() { sc_uint pattern; pattern=0; while (1) { d_a=pattern[0]; d_b=pattern[1]; d_cin=pattern[2]; wait(5,SC_NS); pattern++; }

monitor.h, monitor.cpp // File : monitor.h #include "systemc.h" SC_MODULE(monitor) { sc_in m_a,m_b,m_cin,m_sum,m_cout; void prc_monitor(); SC_CTOR(monitor) { SC_METHOD(prc_monitor); sensitive << m_a << m_b << m_cin << m_sum << m_cout; } }; // File : monitor.cpp #include "monitor.h" void monitor::prc_monitor() { cout << "At time " << sc_time_stamp() << "::"; cout << "(a, b, carry_in): "; cout << m_a << m_b << m_cin; cout << " (sum, carry_out): " << m_sum << m_cout << endl; }

Comparaison VHDL-SystemC // File : half_adder.h #include "systemc.h" SC_MODULE(half_adder) { sc_in a,b; sc_out sum,carry; void prc_half_adder(); SC_CTOR(half_adder) { SC_METHOD(prc_half_adder); sensitive << a << b; } }; // File : half_adder.cpp #include "half_adder.h" void half_adder::prc_half_adder() { sum = a ^ b; carry = a & b; } ARCHITECTURE half_adder_d OF half_adder IS BEGIN sum <= (a XOR b); carry <= (a AND b); END half_adder_d; ENTITY half_adder IS PORT( a, b: IN BIT; sum, carry: OUT BIT); END half_adder;