public.h

来自「网卡驱动程序」· C头文件 代码 · 共 28 行

#ifndef __PUBLIC_H
#define __PUBLIC_H

#include <macros.h>   

#define	SETBIT(x,y) (x|=(1<<y))      //set bit y in byte x
#define	CLRBIT(x,y) (x&=(~(1<<y)))   //clear bit y in byte x
#define	CHKBIT(x,y) (x&(1<<y))       //check bit y in byte x

typedef unsigned char U_8 ;
typedef signed char U_8S;
typedef unsigned int U_16;
typedef signed int U_16S;
typedef unsigned U_32;
typedef signed long U_32S;

//Typedef float FP_32;
//Typedef double FP_64;


//#define make8(var,offset)	(var >> (offset * 8)) & 0xFF
//#define	make16(varhigh,varlow)	((varhigh & 0xFF)* 0x100) + (varlow & 0xFF)
//#define make32(var1,var2,var3,var4) \
//		((unsigned long)var1<<24)+((unsigned long)var2<<16)+ \
//		((unsigned long)var3<<8)+((unsigned long)var4)		

#endif