dos_io.h

来自「基于组件方式开发操作系统的OSKIT源代码」· C头文件 代码 · 共 36 行

/*
 * Copyright (c) 1994-1998 University of Utah and the Flux Group.
 * All rights reserved.
 * 
 * This file is part of the Flux OSKit.  The OSKit is free software, also known
 * as "open source;" you can redistribute it and/or modify it under the terms
 * of the GNU General Public License (GPL), version 2, as published by the Free
 * Software Foundation (FSF).  To explore alternate licensing terms, contact
 * the University of Utah at [e-mail] or [phone].
 * 
 * The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GPL for more details.  You should have
 * received a copy of the GPL along with the OSKit; see the file COPYING.  If
 * not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
 */

#include <oskit/x86/base_trap.h>
#include <oskit/x86/pc/dos_io.h>

#define init_ts(ts) ((ts)->eflags = 0)

#define set_ds_dx(ts, ptr)				\
	({ unsigned ofs = (unsigned)(ptr);		\
	   assert(ofs < 0x10000);			\
	   (ts)->v86_ds = real_cs;			\
	   (ts)->edx = ofs;				\
	})
#define set_es_di(ts, ptr)				\
	({ unsigned ofs = (unsigned)(ptr);		\
	   assert(ofs < 0x10000);			\
	   (ts)->v86_es = real_cs;			\
	   (ts)->edi = ofs;				\
	})