source: firmware/MSR/src/UARTBUF/MYDEFS.H@ 19943

/************************************************************************/
/*                                                                      */
/*                      Several helpful definitions                     */
/*                                                                      */
/*              Author: Peter Dannegger                                 */
/*                                                                      */
/************************************************************************/
#ifndef _mydefs_h_
#define _mydefs_h_


//                      Easier type writing:

typedef unsigned char  u8;
typedef   signed char  s8;
typedef unsigned short u16;
typedef   signed short s16;
typedef unsigned long  u32;
typedef   signed long  s32;


//                      Access bits like variables:

struct bits {
  u8 b0:1;
  u8 b1:1;
  u8 b2:1;
  u8 b3:1;
  u8 b4:1;
  u8 b5:1;
  u8 b6:1;
  u8 b7:1;
} __attribute__((__packed__));

#define SBIT_(port,pin) ((*(volatile struct bits*)&port).b##pin)
#define SBIT(x,y)       SBIT_(x,y)


//                      Optimization improvements

// always inline function x:

#define AIL(x)   static x __attribute__ ((always_inline)); static x


// never inline function x:

#define NIL(x)   x __attribute__ ((noinline)); x


// volatile access (reject unwanted removing access):

#define vu8(x)  (*(volatile u8*)&(x))
#define vs8(x)  (*(volatile s8*)&(x))
#define vu16(x) (*(volatile u16*)&(x))
#define vs16(x) (*(volatile s16*)&(x))
#define vu32(x) (*(volatile u32*)&(x))
#define vs32(x) (*(volatile s32*)&(x))


#endif