|  | @@ -1,4 +1,4 @@
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				|  |  | -/* Copyright (C) 1996, 2000 Free Software Foundation, Inc.
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				|  |  | +/* Copyright (C) 1996, 1998 Free Software Foundation, Inc.
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				|  |  |     This file is part of the GNU C Library.
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				|  |  |  
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				|  |  |     The GNU C Library is free software; you can redistribute it and/or
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				|  | @@ -17,162 +17,32 @@
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				|  |  |     Boston, MA 02111-1307, USA.  */
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				|  |  |  
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				|  |  |  #ifndef	_SYS_IO_H
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				|  |  | -#define	_SYS_IO_H	1
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				|  |  |  
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				|  |  | +#define	_SYS_IO_H	1
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				|  |  |  #include <features.h>
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				|  |  |  
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				|  |  |  __BEGIN_DECLS
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				|  |  |  
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				|  |  |  /* If TURN_ON is TRUE, request for permission to do direct i/o on the
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				|  |  |     port numbers in the range [FROM,FROM+NUM-1].  Otherwise, turn I/O
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				|  |  | -   permission off for that range.  This call requires root privileges.
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				|  |  | -
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				|  |  | -   Portability note: not all Linux platforms support this call.  Most
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				|  |  | -   platforms based on the PC I/O architecture probably will, however.
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				|  |  | -   E.g., Linux/Alpha for Alpha PCs supports this.  */
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				|  |  | +   permission off for that range.  This call requires root privileges.  */
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				|  |  |  extern int ioperm __P ((unsigned long int __from, unsigned long int __num,
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				|  |  |  			int __turn_on));
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				|  |  |  
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				|  |  | -/* Set the I/O privilege level to LEVEL.  If LEVEL>3, permission to
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				|  |  | -   access any I/O port is granted.  This call requires root
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				|  |  | -   privileges. */
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				|  |  | +/* Set the I/O privilege level to LEVEL.  If LEVEL is nonzero,
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				|  |  | +   permission to access any I/O port is granted.  This call requires
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				|  |  | +   root privileges. */
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				|  |  |  extern int iopl __P ((int __level));
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				|  |  |  
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				|  |  | +/* The functions that actually perform reads and writes.  */
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				|  |  | +extern unsigned char inb (unsigned long port);
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				|  |  | +extern unsigned short inw (unsigned long port);
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				|  |  | +extern unsigned long inl (unsigned long port);
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				|  |  |  
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				|  |  | -extern inline unsigned char
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				|  |  | -inb (unsigned short port)
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				|  |  | -{
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				|  |  | -  unsigned char _v;
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				|  |  | -
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				|  |  | -  __asm__ __volatile__ ("inb %w1,%0":"=a" (_v):"Nd" (port));
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				|  |  | -  return _v;
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline unsigned char
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				|  |  | -inb_p (unsigned short port)
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				|  |  | -{
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				|  |  | -  unsigned char _v;
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				|  |  | -
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				|  |  | -  __asm__ __volatile__ ("inb %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port));
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				|  |  | -  return _v;
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline unsigned short
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				|  |  | -inw (unsigned short port)
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				|  |  | -{
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				|  |  | -  unsigned short _v;
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				|  |  | -
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				|  |  | -  __asm__ __volatile__ ("inw %w1,%0":"=a" (_v):"Nd" (port));
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				|  |  | -  return _v;
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline unsigned short
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				|  |  | -inw_p (unsigned short port)
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				|  |  | -{
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				|  |  | -  unsigned short _v;
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				|  |  | -
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				|  |  | -  __asm__ __volatile__ ("inw %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port));
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				|  |  | -  return _v;
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline unsigned int
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				|  |  | -inl (unsigned short port)
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				|  |  | -{
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				|  |  | -  unsigned int _v;
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				|  |  | -
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				|  |  | -  __asm__ __volatile__ ("inl %w1,%0":"=a" (_v):"Nd" (port));
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				|  |  | -  return _v;
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline unsigned int
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				|  |  | -inl_p (unsigned short port)
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				|  |  | -{
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				|  |  | -  unsigned int _v;
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				|  |  | -  __asm__ __volatile__ ("inl %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port));
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				|  |  | -  return _v;
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline void
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				|  |  | -outb (unsigned char value, unsigned short port)
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				|  |  | -{
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				|  |  | -  __asm__ __volatile__ ("outb %b0,%w1": :"a" (value), "Nd" (port));
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline void
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				|  |  | -outb_p (unsigned char value, unsigned short port)
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				|  |  | -{
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				|  |  | -  __asm__ __volatile__ ("outb %b0,%w1\noutb %%al,$0x80": :"a" (value),
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				|  |  | -			"Nd" (port));
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline void
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				|  |  | -outw (unsigned short value, unsigned short port)
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				|  |  | -{
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				|  |  | -  __asm__ __volatile__ ("outw %w0,%w1": :"a" (value), "Nd" (port));
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				|  |  | -
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline void
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				|  |  | -outw_p (unsigned short value, unsigned short port)
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				|  |  | -{
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				|  |  | -  __asm__ __volatile__ ("outw %w0,%w1\noutb %%al,$0x80": :"a" (value),
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				|  |  | -			"Nd" (port));
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline void
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				|  |  | -outl (unsigned int value, unsigned short port)
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				|  |  | -{
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				|  |  | -  __asm__ __volatile__ ("outl %0,%w1": :"a" (value), "Nd" (port));
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline void
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				|  |  | -outl_p (unsigned int value, unsigned short port)
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				|  |  | -{
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				|  |  | -  __asm__ __volatile__ ("outl %0,%w1\noutb %%al,$0x80": :"a" (value),
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				|  |  | -			"Nd" (port));
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline void
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				|  |  | -insb (unsigned short port, void *addr, unsigned long count)
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				|  |  | -{
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				|  |  | -  __asm__ __volatile__ ("cld ; rep ; insb":"=D" (addr),
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				|  |  | -			"=c" (count):"d" (port), "0" (addr), "1" (count));
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline void
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				|  |  | -insw (unsigned short port, void *addr, unsigned long count)
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				|  |  | -{
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				|  |  | -  __asm__ __volatile__ ("cld ; rep ; insw":"=D" (addr),
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				|  |  | -			"=c" (count):"d" (port), "0" (addr), "1" (count));
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline void
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				|  |  | -insl (unsigned short port, void *addr, unsigned long count)
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				|  |  | -{
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				|  |  | -  __asm__ __volatile__ ("cld ; rep ; insl":"=D" (addr),
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				|  |  | -			"=c" (count):"d" (port), "0" (addr), "1" (count));
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline void
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				|  |  | -outsb (unsigned short port, const void *addr, unsigned long count)
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				|  |  | -{
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				|  |  | -  __asm__ __volatile__ ("cld ; rep ; outsb":"=S" (addr),
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				|  |  | -			"=c" (count):"d" (port), "0" (addr), "1" (count));
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline void
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				|  |  | -outsw (unsigned short port, const void *addr, unsigned long count)
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				|  |  | -{
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				|  |  | -  __asm__ __volatile__ ("cld ; rep ; outsw":"=S" (addr),
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				|  |  | -			"=c" (count):"d" (port), "0" (addr), "1" (count));
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				|  |  | -}
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				|  |  | -
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				|  |  | -extern inline void
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				|  |  | -outsl (unsigned short port, const void *addr, unsigned long count)
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				|  |  | -{
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				|  |  | -  __asm__ __volatile__ ("cld ; rep ; outsl":"=S" (addr),
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				|  |  | -			"=c" (count):"d" (port), "0" (addr), "1" (count));
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				|  |  | -}
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				|  |  | +extern void outb (unsigned char value, unsigned long port);
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				|  |  | +extern void outw (unsigned short value, unsigned long port);
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				|  |  | +extern void outl (unsigned long value, unsigned long port);
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				|  |  |  
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				|  |  |  __END_DECLS
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				|  |  | +
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				|  |  |  #endif /* _SYS_IO_H */
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