sys/arch/mac68k/include/pio.h

   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))); }