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I need to modify definition of fWriteA to include all pins. How would I combine these 2 statements into one?

Code:

//Atmega644/1284 Version of fastWrite - for pins 0-15
#define fWriteA(_pin_, _state_) ( _pin_ < 8 ? (_state_ ? PORTB |= 1 << _pin_ : PORTB &= ~(1 << _pin_ )) : (_state_ ? PORTD |= 1 << (_pin_ -8) : PORTD &= ~(1 << (_pin_ -8) )))
//Atmega644/1284 Version of fastWrite - for pins 16-31 (Note: PORTA mapping reversed from others)
#define fWriteB(_pin_, _state_) ( _pin_ < 24 ? (_state_ ? PORTC |= 1 << (_pin_ -16) : PORTC &= ~(1 << (_pin_ -16))) : (_state_ ? PORTA |= 1 << (31- _pin_) : PORTA &= ~(1 << (31- _pin_) )))

Also would be great to know what syntax is this?

[Reply #1 on:]

I would reccomend using fatlib16's class: http://arduino.cc/forum/index.php/topic,150325.msg1128634.html#msg1128634

This should combine the two though.

Code:

#define fWrite( _pin_, _state_ ) ( ( _pin_ < 16 ) ? fWriteA( _pin_, _state_ ) : fWriteB( _pin_, _state_ ) )

It is using the C/C++ pre-processor syntax. Search macros and defines.

[Reply #2 on:]

I would reccomend using fatlib16's class: http://arduino.cc/forum/index.php/topic,150325.msg1128634.html#msg1128634

This should combine the two though.

Code:

#define fWrite( _pin_, _state_ ) ( ( _pin_ < 16 ) ? fWriteA( _pin_, _state_ ) : fWriteB( _pin_, _state_ ) )

It is using the C/C++ pre-processor syntax. Search macros and defines.

Wow, thanks!  I haven't thought of that!  So that translates to if (_pin_ < 16) fWriteA; else fWriteB 
Neat!
I'll check out fatlib16's class too!