Re: [Gems-users] Write from ruby to simics

[Lois Orosa Nogueira <lois.orosa@xxxxxx>]

I get the physical address with this function:



physical_address_t getDataTranslation(physical_address_t 
virtual_address, int thread, int proc_no)
{  
  int page_offset = virtual_address % g_PAGE_SIZE_BYTES;
  physical_address_t virtual_page = virtual_address - page_offset;
 
  physical_address_t physical_address;
   
  physical_address_t temp_address = SIMICS_translate_data_address( 
proc_no, Address(virtual_page));
  if (temp_address == 0){
       return 0; 
   } else {
       physical_address = temp_address + page_offset;        
   }
  return physical_address;    

}



I receive the segmentation fault when do the first write from ruby to 
simics.
Is this OK ? Does Someone known how to do this?

Thanks a lot
Lois


Lois Orosa Nogueira escribió:
> Hi list,
>
> I'm trying to save in ruby part of the Versions of data in 
> Transactions . I read from simics some blocks in this way:
>
>  for (int i = 0; i < g_DATA_BLOCK_BYTES; i += 4){
>    entry[i/4] = SIMICS_read_physical_memory( 
> proc,physicalAddress.getAddress() + i, 4);
>  }
>
>
>
> and then, I write from ruby to simics in this way (to the same address):
>
> for (int i = 0; i < g_DATA_BLOCK_BYTES; i+=4){
>    SIMICS_write_physical_memory(proc, physicalAddress.getAddress() + 
> i, entry[i/4], 4);
>  }
>
>
> Which is the error? I receive a Segmentation fault from simics when I 
> do the first Write
> Thanks a lot
> Lois