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/*
* Copyright (c) 1995-1994 The University of Utah and
* the Computer Systems Laboratory at the University of Utah (CSL).
* All rights reserved.
*
* Permission to use, copy, modify and distribute this software is hereby
* granted provided that (1) source code retains these copyright, permission,
* and disclaimer notices, and (2) redistributions including binaries
* reproduce the notices in supporting documentation, and (3) all advertising
* materials mentioning features or use of this software display the following
* acknowledgement: ``This product includes software developed by the
* Computer Systems Laboratory at the University of Utah.''
*
* THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
* IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
* ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* CSL requests users of this software to return to csl-dist@cs.utah.edu any
* improvements that they make and grant CSL redistribution rights.
*
* Author: Bryan Ford, University of Utah CSL
*/
#ifndef _I386_PC_REAL_CALL_H_
#define _I386_PC_REAL_CALL_H_
/* This structure happens to correspond to the DPMI real-call structure. */
struct real_call_data
{
unsigned edi;
unsigned esi;
unsigned ebp;
unsigned reserved;
unsigned ebx;
unsigned edx;
unsigned ecx;
unsigned eax;
unsigned short flags;
unsigned short es;
unsigned short ds;
unsigned short fs;
unsigned short gs;
unsigned short ip;
unsigned short cs;
unsigned short sp;
unsigned short ss;
};
/* Code segment we originally had when we started in real mode. */
extern unsigned short real_cs;
extern void (*real_int)(int intnum, struct real_call_data *rcd);
extern void (*real_exit)(int rc);
#define real_call_data_init(rcd) \
({ (rcd)->flags = 0; \
(rcd)->ss = 0; \
(rcd)->sp = 0; \
})
#endif /* _I386_PC_REAL_CALL_H_ */
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