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Functions
void	check_netlist ()

Function Documentation

void check_netlist ( )

This routine checks that the netlist makes sense.

Definition at line 41 of file check_netlist.c.

{
    int i, error, num_conn;
        int net_count;
        struct s_hash **net_hash_table, *h_net_ptr;
    
    net_hash_table = alloc_hash_table();

        net_count = 0;

    error = 0;

        /* Check that nets fanout and have a driver. */
    for(i = 0; i < num_nets; i++)
        {
            h_net_ptr = insert_in_hash_table(net_hash_table, clb_net[i].name, i);
                if(h_net_ptr->count != 1) {
                        printf(ERRTAG "net %s has multiple drivers.\n", clb_net[i].name);
                    error++;
                }
            error += check_connections_to_global_clb_pins(i);
                if(error >= ERROR_THRESHOLD) {
                        printf("Too many errors in netlist, exiting\n");
                        exit(1);
                }
        }
        free_hash_table(net_hash_table);

/* Check that each block makes sense. */
    for(i = 0; i < num_blocks; i++)
        {
            num_conn = get_num_conn(i);
            error += check_clb_conn(i, num_conn);
                error += check_clb_internal_nets(i);
            error += check_subblocks(i);
                if(error >= ERROR_THRESHOLD) {
                        printf("Too many errors in netlist, exiting\n");
                        exit(1);
                }
        }

    error += check_for_duplicated_names();

    if(error != 0)
        {
            printf("Found %d fatal Errors in the input netlist.\n", error);
            exit(1);
        }

        /* HACK: Jason Luu January 17, 2011 Do not route common constants gnd and vcc
           Todo: Need to make architecture driven.
        */
        for(i = 0; i < num_nets; i++)
        {
                if(strcmp(clb_net[i].name, "vcc") == 0) {
                        clb_net[i].is_global = TRUE;
                } else if(strcmp(clb_net[i].name, "gnd") == 0) {
                        clb_net[i].is_global = TRUE;
                }
        }
}

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vpr/SRC/base/check_netlist.h File Reference

Functions

Function Documentation