io.h

来自「基于OMAP的UART驱动和测试程序」· C头文件 代码 · 共 20 行

#ifndef	__IO_H__
#define	__IO_H__

#define     Get8(p)         (*(unsigned char *)(p))
#define     Get16(p)        (*(unsigned short *)(p))
#define     Get32(p)        (*(unsigned int *)(p))
#define     Set8(v,p)       (*(unsigned char *)(p) = (v)) 
#define     Set16(v,p)      (*(unsigned short *)(p) = (v)) 
#define     Set32(v,p)      (*(unsigned int  *)(p) = (unsigned int)(v)) 

#define     GetIo8(p)         (*(volatile unsigned char *)(p))
#define     GetIo16(p)        (*(volatile unsigned short *)(p))
#define     GetIo32(p)        (*(volatile unsigned int *)(p))
#define     SetIo8(v,p)       (*(volatile unsigned char *)(p) = (v)) 
#define     SetIo16(v,p)      (*(volatile unsigned short *)(p) = (v)) 
#define     SetIo32(v,p)      (*(volatile unsigned int  *)(p) = (v))

#endif