;    type = hex0char(cmd_bfr[0]);   switch (type)   {   case 0:   case 0:     type = GDB_BP_TYPE_X;     break;   case 0:     type = GDB_BP_TYPE_W;     break;   case 0:     type = GDB_BP_TYPE_R;     break;   case 0:     type = GDB_BP_TYPE_A;     break;   default:     return gdb_reply("E00");   }    i = 0;   while (cmd_bfr[i] != ',')     addr = 