thank you

i want to do it like this

Code:

     
out = portOutputRegister(port);
if (val == LOW) *out &= ~bit;
      else *out |= bit;

that is why i need to add new function

Yes but i found nothing
How i can do it? there is special function?

i only need add new function to \arduino-0017\hardware\cores\arduinowiring_digital.c

No. i want create new to switch on or off massive of pins
i cant use like this

Code:

for(int i=0;i<10;i++)
{
digitalWrite(i,HIGH);
}

because it spend a lot of time

there is one reason
standart digitalwrite spends a lot of time to switch on or switch of massive of pins
i think i can do it, if i modify standart digitalWrite

Hello!
I am trying to add new function "MydigitalWrite" to wiring_digital.c () (\arduino-0017\hardware\cores\arduino)

When I try to compile:
In function 'void loop()':
error: 'MydigitalWrite' was not declared in this scope

How to win this problem?

I have similar problem: I cant upload to ArduinoBT my sketch  
avrdude: stk500_getsync(): not in sync: resp=0x00
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51
What wrong? Please help me

I have a serious problem with the Arduino, I can't install FTDI driver on Windows Embedded CE 6.0 R3!  :'( Installation just fails on CE :'(
Please, help!