Range of port mapping from outer to inner module input port

[Supernova]

Hi,

I was trying to map port from a outer module to an input port of inner module. The ports to be mapped in a certain way that a range of input port of outer module is to be mapped with the input port of the inner module. Example is given below.

inner module : 

 

SC_MODULE(alu)

{

  sc_in<sc_uint<8> >  a_in;

  sc_in<sc_uint<8> >  b_in;

  sc_in<sc_bv<2> >     op;

  sc_in<bool> en;

  sc_out<sc_uint<8> > out_sig;

  

 

  void calc_out();

 

  SC_CTOR(alu){

    cout<<"alu constructor"<<endl;

    SC_METHOD( calc_out );

    sensitive<<op<<a_in<<b_in<<en;

  }

 

};

 

Outer module:

 

sc_in <sc_uint<24> > ins;

sc_in <bool> coack;

sc_in <bool> memack;

sc_out <sc_uint<8> > out;

sc_out <sc_uint<8> > memout;

sc_out <sc_uint<23> > coprout;

sc_out <bool>corqst;

sc_out <bool> memrqst;

 

sc_signal <bool> aluen ;

//sc_signal <sc_bv<24> > ins_sig;

 

sc_signal <sc_int<8> > result_sig;

 

alu* alup;

 

SC_CTOR(processor)

{

alup = new alu("alup");

alup->a_in(ins.range(15,8));   // HERE THE ERROR IS COMMING. I want to map a range of port bit of processor (outer 

// int i;                                      // module) to the whole one port of alu (inner module)

// alup->a_in[7](ins[15]);

// for(i=15;i>=8;i--)

// alup->a_in[i-8](ins);

 

        alup->b_in(ins_sig.range(7,0));  // SAME HERE

// for(i=7;i>=0;i--)

// alup->b_in(ins);

 

alup->op(ins_sig.range(17,16));         //SAME HERE

 

for(i=17;i>=16;i--)

alup->op[i-16](ins);

 

alup->en(aluen);

alup->out_sig(result_sig);

 

SC_THREAD(request_copr);

sensitive << ins << coack.pos();

SC_THREAD(request_mem);

sensitive << ins << memack.pos();

SC_METHOD(show_out);

sensitive<<out_sig;

 

}

// functions....

}

 

I will be highly thankful if anyone ca help me with this.

 

[Roman Popov]

A well known SystemC problem.  Unfortunately you will have to create SC_METHOD that will divide your ins port into multiple signals on range basis.

[Supernova]

Thank you Roman. I implemented it inserting a separate module which will do it.