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/* $OpenBSD: frame.h,v 1.2 1997/05/29 00:04:39 niklas Exp $ */
/* $NetBSD: frame.h,v 1.1 1995/11/12 15:07:30 ragge Exp $ */
/*
* Copyright (c) 1995 Ludd, University of Lule}, Sweden.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed at Ludd, University of
* Lule}, Sweden and its contributors.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Description of calls frame on stack. This is the
* standard way of making procedure calls on vax systems.
*/
struct callsframe {
unsigned int ca_cond; /* condition handler */
unsigned int ca_maskpsw; /* register mask and saved psw */
unsigned int ca_ap; /* argument pointer */
unsigned int ca_fp; /* frame pointer */
unsigned int ca_pc; /* program counter */
unsigned int ca_argno; /* argument count on stack */
unsigned int ca_arg1; /* first arg on stack */
/* This can be followed by more arguments */
};
/* Offset to beginning of calls frame from first arg */
#define FRAMEOFFSET(arg1) ((struct callsframe *)((unsigned int)&(arg1) - 24))
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