#ifndef _IO_H_#define _IO_H_/* * readX/writeX() are used to access memory mapped io devices.  * On the m68k architecture, we just read/write the memory location directly. */#define readb(addr) (*(volatile unsigned char *) (addr))#define readw(addr) (*(volatile unsigned short *) (addr))#define readl(addr) (*(volatile unsigned int *) (addr))#define writeb(b,addr) (void)((*(volatile unsigned char *) (addr)) = (b))#define writew(w,addr) (void)((*(volatile unsigned short *) (addr)) = (w))#define writel(l,addr) (void)((*(volatile unsigned int *) (addr)) = (l))#define orb(b,addr) (void)((*(volatile unsigned char *) (addr)) |= (b))#define orw(w,addr) (void)((*(volatile unsigned short *) (addr)) |= (w))#define orl(l,addr) (void)((*(volatile unsigned int *) (addr)) |= (l))#define andb(b,addr) (void)((*(volatile unsigned char *) (addr)) &= (b))#define andw(w,addr) (void)((*(volatile unsigned short *) (addr)) &= (w))#define andl(l,addr) (void)((*(volatile unsigned int *) (addr)) &= (l))#define outb(b,addr) writeb(b,addr)#define outw(w,addr) writew(w,addr)#define outl(l,addr) writel(l,addr)#endif /* _IO_H_ */