www.pudn.com > 2minilib.rar > io.h

/***************************************************************************\ 
	Copyright (c) 2004-2007 threewater@up-tech.com, All rights reserved. 
	by threewter	2004.4.26 
\***************************************************************************/ 
	 
 
/***************************************************************************\ 
    #说明: 标准输入输出函数 
	----------------------------------  Bug  -------------------------------------- 
 
	----------------------------------  TODO list  -------------------------------------- 
 
	----------------------------------修正-------------------------------------- 
	2004-4-26	创建 
 
\***************************************************************************/ 
#ifndef __IO_H__ 
#define __IO_H__ 
 
#define _outb(addr, data)		*((volatile unsigned char*)(addr))=(data) 
#define _outw(addr, data)		*((volatile unsigned short*)(addr))=(data) 
#define _outl(addr, data)		*((volatile unsigned long*)(addr))=(data) 
 
#define _inb(addr)		(*(volatile unsigned char*)(addr)) 
#define _inw(addr)		(*(volatile unsigned short*)(addr)) 
#define _inl(addr)		(*(volatile unsigned long*)(addr)) 
 
#endif