1/* $NetBSD: pio.h,v 1.4 2005/12/24 22:45:35 perry Exp $ */
2
3/*
4 * Mach Operating System
5 * Copyright (c) 1990 Carnegie-Mellon University
6 * All rights reserved. The CMU software License Agreement specifies
7 * the terms and conditions for use and redistribution.
8 */
9
10#define inl(y) \
11({ unsigned long _tmp__; \
12 __asm volatile("inl %1, %0" : "=a" (_tmp__) : "d" ((unsigned short)(y))); \
13 _tmp__; })
14
15#define inw(y) \
16({ unsigned short _tmp__; \
17 __asm volatile(".byte 0x66; inl %1, %0" : "=a" (_tmp__) : "d" ((unsigned short)(y))); \
18 _tmp__; })
19
20#define inb(y) \
21({ unsigned char _tmp__; \
22 __asm volatile("inb %1, %0" : "=a" (_tmp__) : "d" ((unsigned short)(y))); \
23 _tmp__; })
24
25
26#define outl(x, y) \
27{ __asm volatile("outl %0, %1" : : "a" (y) , "d" ((unsigned short)(x))); }
28
29
30#define outw(x, y) \
31{__asm volatile(".byte 0x66; outl %0, %1" : : "a" ((unsigned short)(y)) , "d" ((unsigned short)(x))); }
32
33
34#define outb(x, y) \
35{ __asm volatile("outb %0, %1" : : "a" ((unsigned char)(y)) , "d" ((unsigned short)(x))); }