1/* $NetBSD: pio.h,v 1.3 1994/10/26 08:46:38 cgd 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))); } 36