I/O

I/O. More...

Files
file	i386_io.h
	I/O.

Macros
#define	rtems_inb(port)
#define	rtems_inw(port)
#define	rtems_outb(port, data)    __asm__ volatile ("outb %%al,%%dx" : : "a" (data), "d" (port))
#define	rtems_outw(port, data)    __asm__ volatile ("outw %%ax,%%dx" : : "a" (data), "d" (port))
#define	outp(port, val)   rtems_outb(port,val)
#define	inp(port)   rtems_inb(port)
#define	outb(val, port)   rtems_outb(port,val)
#define	inb(port)   rtems_inb(port)
#define	outb_p(val, port)   rtems_outb(port,val)
#define	inb_p(port)   rtems_inb(port)
#define	outportb(port, val)   rtems_outb(port,val)
#define	inportb(port)   rtems_inb(port)
#define	outw(val, port)   rtems_outw(port,val)
#define	inw(port)   rtems_inw(port)
#define	cli()   __asm__ __volatile__("cli")
#define	sti()   __asm__ __volatile__("sti");

Detailed Description

I/O.

Macro Definition Documentation

rtems_inb

#define rtems_inb

(

port

)

Value:

({                                  \
        register int _inb_result;                   \
                            \
        __asm__ volatile ("xorl %%eax,%%eax; inb %%dx,%%al" :       \
            "=a" (_inb_result) : "d" (port));               \
        _inb_result;                            \
})

rtems_inw

#define rtems_inw

(

port

)

Value:

({                                  \
        register int _inbw_result;                  \
                                    \
        __asm__ volatile ("xorl %%eax,%%eax; inw %%dx,%%ax" :       \
            "=a" (_inbw_result) : "d" (port));              \
        _inbw_result;                           \
})