Concatenate in SystemC

[Paul Riemer]

How does one concatenate a group of bool signals into a sc_uint?

[Roman Popov]

Do you want to concatenate a group of sc_signal<bool> into sc_signal<sc_uint> ?

You need to create a SC_METHOD to do this, for example:

 

sc_signal<bool> bool_sig0{"bool_sig0"}; 
sc_signal<bool> bool_sig1{"bool_sig1"};
sc_signal<sc_uint<2>> uint_sig{"uint_sig"};

...

SC_METHOD(concat_method);
sensitive << bool_sig0 << bool_sig1;

...

void concat_method() {
  sc_uint<2> new_val;
  new_val[0] = bool_sig0;
  new_val[1] = bool_sig1;
  uint_sig = new_val;
}

 

[Paul Riemer]

Yes, I have been trying

uint_sig = (bool_sig1, bool_sig0); 

Which does compile but only the bool_sig0 is concatenated.

 

[Roman Popov]

28 minutes ago, Paul Riemer said:

Yes, I have been trying

uint_sig = (bool_sig1, bool_sig0); 

Which does compile but only the bool_sig0 is concatenated.

 

As expected: https://stackoverflow.com/questions/52550/what-does-the-comma-operator-do