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Annotation of Gnu-Mach/i386/pc/real.h, revision 1.1

1.1     ! root        1: /* 
        !             2:  * Copyright (c) 1995-1994 The University of Utah and
        !             3:  * the Computer Systems Laboratory at the University of Utah (CSL).
        !             4:  * All rights reserved.
        !             5:  *
        !             6:  * Permission to use, copy, modify and distribute this software is hereby
        !             7:  * granted provided that (1) source code retains these copyright, permission,
        !             8:  * and disclaimer notices, and (2) redistributions including binaries
        !             9:  * reproduce the notices in supporting documentation, and (3) all advertising
        !            10:  * materials mentioning features or use of this software display the following
        !            11:  * acknowledgement: ``This product includes software developed by the
        !            12:  * Computer Systems Laboratory at the University of Utah.''
        !            13:  *
        !            14:  * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
        !            15:  * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
        !            16:  * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            17:  *
        !            18:  * CSL requests users of this software to return to [email protected] any
        !            19:  * improvements that they make and grant CSL redistribution rights.
        !            20:  *
        !            21:  *      Author: Bryan Ford, University of Utah CSL
        !            22:  */
        !            23: #ifndef _I386_PC_REAL_CALL_H_
        !            24: #define _I386_PC_REAL_CALL_H_
        !            25: 
        !            26: /* This structure happens to correspond to the DPMI real-call structure.  */
        !            27: struct real_call_data
        !            28: {
        !            29:        unsigned edi;
        !            30:        unsigned esi;
        !            31:        unsigned ebp;
        !            32:        unsigned reserved;
        !            33:        unsigned ebx;
        !            34:        unsigned edx;
        !            35:        unsigned ecx;
        !            36:        unsigned eax;
        !            37:        unsigned short flags;
        !            38:        unsigned short es;
        !            39:        unsigned short ds;
        !            40:        unsigned short fs;
        !            41:        unsigned short gs;
        !            42:        unsigned short ip;
        !            43:        unsigned short cs;
        !            44:        unsigned short sp;
        !            45:        unsigned short ss;
        !            46: };
        !            47: 
        !            48: /* Code segment we originally had when we started in real mode.  */
        !            49: extern unsigned short real_cs;
        !            50: 
        !            51: extern void (*real_int)(int intnum, struct real_call_data *rcd);
        !            52: extern void (*real_exit)(int rc);
        !            53: 
        !            54: #define real_call_data_init(rcd)       \
        !            55:        ({ (rcd)->flags = 0;            \
        !            56:           (rcd)->ss = 0;               \
        !            57:           (rcd)->sp = 0;               \
        !            58:        })
        !            59: 
        !            60: #endif /* _I386_PC_REAL_CALL_H_ */

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