/
io.h
executable file
·52 lines (37 loc) · 1.01 KB
/
io.h
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#pragma once
#ifdef __cplusplus
extern "C" {
#endif
static __inline unsigned char inb (unsigned short int __port)
{
unsigned char _v;
__asm__ __volatile__ ("inb %w1,%0":"=a" (_v):"Nd" (__port));
return _v;
}
static __inline unsigned short int inw (unsigned short int __port)
{
unsigned short _v;
__asm__ __volatile__ ("inw %w1,%0":"=a" (_v):"Nd" (__port));
return _v;
}
static __inline unsigned int inl (unsigned short int __port)
{
unsigned int _v;
__asm__ __volatile__ ("inl %w1,%0":"=a" (_v):"Nd" (__port));
return _v;
}
static __inline void outb (unsigned char value, unsigned short int __port)
{
__asm__ __volatile__ ("outb %b0,%w1": :"a" (value), "Nd" (__port));
}
static __inline void outw (unsigned short int value, unsigned short int __port)
{
__asm__ __volatile__ ("outw %w0,%w1": :"a" (value), "Nd" (__port));
}
static __inline void outl (unsigned int value, unsigned short int __port)
{
__asm__ __volatile__ ("outl %0,%w1": :"a" (value), "Nd" (__port));
}
#ifdef __cplusplus
}
#endif