mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-11-30 06:32:44 +00:00
6e393973f5
headers into a related source file. Added cons.h as first step towards moving i386/i386/cons.h to machine/cons.h where it belongs.
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/*
|
|
* Mach Operating System
|
|
* Copyright (c) 1990 Carnegie-Mellon University
|
|
* All rights reserved. The CMU software License Agreement specifies
|
|
* the terms and conditions for use and redistribution.
|
|
*
|
|
* from: Mach, unknown, 386BSD patch kit
|
|
* $Id: pio.h,v 1.2 1993/10/16 14:39:23 rgrimes Exp $
|
|
*/
|
|
|
|
#ifndef _MACHINE_PIO_H_
|
|
#define _MACHINE_PIO_H_ 1
|
|
|
|
#define inl(y) \
|
|
({ unsigned long _tmp__; \
|
|
asm volatile("inl %1, %0" : "=a" (_tmp__) : "d" ((unsigned short)(y))); \
|
|
_tmp__; })
|
|
|
|
#define inw(y) \
|
|
({ unsigned short _tmp__; \
|
|
asm volatile(".byte 0x66; inl %1, %0" : "=a" (_tmp__) : "d" ((unsigned short)(y))); \
|
|
_tmp__; })
|
|
|
|
/*
|
|
* only do this if it has not already be defined.. this is a crock for the
|
|
* patch kit for right now. Need to clean up all the inx, outx stuff for
|
|
* 0.1.5 to use 1 common header file, that has Bruces fast mode inb/outb
|
|
* stuff in it. Rgrimes 5/27/93
|
|
*/
|
|
#ifndef inb
|
|
#define inb(y) \
|
|
({ unsigned char _tmp__; \
|
|
asm volatile("inb %1, %0" : "=a" (_tmp__) : "d" ((unsigned short)(y))); \
|
|
_tmp__; })
|
|
#endif
|
|
|
|
|
|
#define outl(x, y) \
|
|
{ asm volatile("outl %0, %1" : : "a" (y) , "d" ((unsigned short)(x))); }
|
|
|
|
|
|
#define outw(x, y) \
|
|
{asm volatile(".byte 0x66; outl %0, %1" : : "a" ((unsigned short)(y)) , "d" ((unsigned short)(x))); }
|
|
|
|
|
|
#define outb(x, y) \
|
|
{ asm volatile("outb %0, %1" : : "a" ((unsigned char)(y)) , "d" ((unsigned short)(x))); }
|
|
#endif /* _MACHINE_PIO_H_ */
|