vector declaration

[meera]

hi,

 

when i try to assign a particular bti in a vector by using the statement ff=o..it is showing error. Could any one pls tell what the mistake is.

 

.....

 sc_signal<sc_bv<8> > ff;

 

void func(){

sc_int<size>  i;

if(rst){

for(i=0;i<10;i++)

   ff=0;//error

  }     ......

[kartikkg]

Can you post the error message ? A cursory glance at the code reveals you trying to access an out-of-bonds bit. ff is 8-bit wide and the for loop goes beyond that.

[meera]

hi, 

   i was able to overcome the error, since iam new to systemc i didn't know that i had to include:  #include "vector"  as the header .

[meera]

#include "systemc.h"

#include "vector"

 

SC_MODULE(w1){

sc_in<bool> on;

 

void work(){

sc_bv<8>  ff[10];

int i;

if(on){

for (i=0;i<10;++i)

 {

ff=0;

cout<<"ff["<<i<<"]"<<ff<<endl;

 }

 }

}

SC_CTOR(w1){

SC_METHOD(work);

sensitive<<on;

}

};

 

 

hi could anyone tell me why iam not getting  :-   ff=00000000 for all i

[apfitch]

Should your code be

cout<<"ff["<<i<<"]"<<ff[i] <<endl;

?

Alan

[meera]

well , i just wanted to see the values of ff after running the program. 

[meera]

 

iam getting error upon using "wait_until"

 

 

#include "systemc.h"

 

 

SC_MODULE (counter2) {

  sc_in_clk     clock ;  

  sc_in<bool>   reset ;     

  sc_in<bool>   enable;      

  sc_out<sc_uint<4> > counter_out; 

 

 

  sc_uint<4> count;

 

 

  void incr_count () {

   

    while (true) { 

wait(10);

WAIT_UNTIL(reset.delayed() == true || enable.delayed() == true);         ERROR!!

 

      if (reset.read() == 1) {

        count =  0;

        counter_out.write(count);

      

      } else if (enable.read() == 1) {

        count = count + 1;

        counter_out.write(count);

      }

    }

  } 

 

  void print_count () {

    while (true) {

      wait();

      cout<<"@" << sc_time_stamp() <<

        " :: Counter Value "<<counter_out.read()<<endl;

    }

  }

 

 

 

  SC_CTOR(counter2) {

  

    SC_CTHREAD(incr_count, clock.pos());

   

    SC_THREAD(print_count);

    sensitive << counter_out;

  }

 

}; // End of Module counter

 

 

the error is 

Error 2 error C2039: 'delayed' : is not a member of 'sc_core::sc_in<bool>

 

[apfitch]

wait_until and the delayed() method were removed from SystemC during standardisation. The best option is to use a do...while e.g.

do {
   wait();
}
while (reset.read() == false && enable.read() == false);

regards

Alan

[meera]

hi,

 

 when i use switch statement,is it possible to transfer control from one case to another case?

 

#include "systemc.h"

enum htrans_type { IDLE, BUSY,NONSEQ,SEQ};

SC_MODULE(trans){

 

sc_in<htrans_type> HTRANS;

 

void p1(){

 

while(true)

{

wait();

 

switch(HTRANS){

/////////////////////////////

case IDLE: { ...................

.................................

.......................

}

case NONSEQ:{....}

....

...

 

now if i want to go in between from one switch case to other( say previous) what should i do?