summaryrefslogtreecommitdiff
path: root/sys/arch/mac68k/include/pio.h
blob: 033b7baa8c6bb1fcf6a86b4c89d4b7606e819924 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
/*	$OpenBSD: pio.h,v 1.2 1996/05/26 18:35:57 briggs Exp $	*/
/*	$NetBSD: pio.h,v 1.3 1994/10/26 08:46:38 cgd Exp $	*/

/* 
 * 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.
 */

#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__; })

#define inb(y) \
({ unsigned char _tmp__; \
	asm volatile("inb %1, %0" : "=a" (_tmp__) : "d" ((unsigned short)(y))); \
	_tmp__; })


#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))); }