/*==========================*/
/* Predefined SFR Addresses */
/*==========================*/

/****************************************************************************
* An example showing the SFR_B() macro call,
* the expanded result and usage of this result:
*
* SFR_B(AVR,   0x1F) Expands to:
* __io union {
*             unsigned char AVR;                 // The sfrb as 1 byte
*             struct {                           // The sfrb as 8 bits
*                     unsigned char AVR_Bit0:1,
*                                   AVR_Bit1:1,
*                                   AVR_Bit2:1,
*                                   AVR_Bit3:1,
*                                   AVR_Bit4:1,
*                                   AVR_Bit5:1,
*                                   AVR_Bit6:1,
*                                   AVR_Bit7:1;
*                    };
*            } @ 0x1F;
* Examples of how to use the expanded result:
* AVR |= (1<<5);
* or like this:
* AVR_Bit5 = 1;
***************************************************************************/

#define SFR_B(_NAME, _ADDR) SFR_B_BITS(_NAME, _ADDR, \
                                    Bit0,Bit1,Bit2,Bit3,Bit4,Bit5,Bit6,Bit7)

#define SFR_B_BITS(_NAME, _ADDR, _A,_B,_C,_D,_E,_F,_G,_H) \
    __io union { \
      unsigned char   _NAME;           /* The sfrb as 1 byte */ \
      struct {                        /* The sfrb as 8 bits */ \
        __BYTEBITS(_NAME, _A,_B,_C,_D,_E,_F,_G,_H) \
      };  \
    } @ _ADDR;

if (TIFR_TOV1) blablabla...

  OUTPUT  (   PulseWdt        ,   P1  , 0x01    )
  INPUT   (   KeyStIn         ,   ~P1 , 0x10    )
...
#pragma inline=forced
unsigned char GetPin(unsigned int name);
#pragma inline=forced
void  OnPin(unsigned int name);
...
// generation of inputs functions
unsigned char GetPin( unsigned int name)
{ switch (name) {
#define INPUT( name, port, bit)  case name: return (port##IN & bit);
#include pins_file
default: return 0; } }