Plan 9 from Bell Labs’s /usr/web/sources/plan9/386/include/ape/ureg.h

Copyright © 2021 Plan 9 Foundation.
Distributed under the MIT License.
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#ifndef __UREG_H
#define __UREG_H
#if !defined(_PLAN9_SOURCE)
    This header file is an extension to ANSI/POSIX
#endif

struct Ureg
{
	unsigned long	di;		/* general registers */
	unsigned long	si;		/* ... */
	unsigned long	bp;		/* ... */
	unsigned long	nsp;
	unsigned long	bx;		/* ... */
	unsigned long	dx;		/* ... */
	unsigned long	cx;		/* ... */
	unsigned long	ax;		/* ... */
	unsigned long	gs;		/* data segments */
	unsigned long	fs;		/* ... */
	unsigned long	es;		/* ... */
	unsigned long	ds;		/* ... */
	unsigned long	trap;		/* trap type */
	unsigned long	ecode;		/* error code (or zero) */
	unsigned long	pc;		/* pc */
	unsigned long	cs;		/* old context */
	unsigned long	flags;		/* old flags */
	union {
		unsigned long	usp;
		unsigned long	sp;
	};
	unsigned long	ss;		/* old stack segment */
};

#endif

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