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/* $OpenBSD: asm.h,v 1.1 1998/01/28 11:14:37 pefo Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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 by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* Copyright (C) 1989 Digital Equipment Corporation.
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appears in all copies.
* Digital Equipment Corporation makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*/
#ifndef _MIPS_ASM_H
#define _MIPS_ASM_H
#include <machine/regdef.h>
#ifndef ABICALLS
#define ABICALLS .abicalls
#endif
#if defined(ABICALLS) && !defined(_KERNEL)
ABICALLS
#endif
#define RCSID(x)
#define _C_LABEL(x) x
/*
* Define how to access unaligned data word
*/
#ifdef MIPSEL
#define LWLO lwl
#define LWHI lwr
#define SWLO swl
#define SWHI swr
#endif
#ifdef MIPSEB
#define LWLO lwr
#define LWHI lwl
#define SWLO swr
#define SWHI swl
#endif
/*
* Code for setting gp reg if abicalls are used.
*/
#if defined(ABICALLS) && !defined(_KERNEL)
#define ABISETUP \
.set noreorder; \
.cpload t9; \
.set reorder;
#else
#define ABISETUP
#endif
/*
* Define -pg profile entry code.
*/
#if defined(GPROF) || defined(PROF)
#define MCOUNT \
subu sp, sp, 32; \
.cprestore 16; \
sw ra, 28(sp); \
sw gp, 24(sp); \
.set noat; \
.set noreorder; \
move AT, ra; \
jal _mcount; \
subu sp, sp, 8; \
lw ra, 28(sp); \
addu sp, sp, 32; \
.set reorder; \
.set at;
#else
#define MCOUNT
#endif
/*
* LEAF(x)
*
* Declare a leaf routine.
*/
#define LEAF(x) \
.align 3; \
.globl x; \
.ent x, 0; \
x: ; \
.frame sp, 0, ra; \
ABISETUP \
MCOUNT
#define ALEAF(x) \
.globl x; \
x:
/*
* NLEAF(x)
*
* Declare a non-profiled leaf routine.
*/
#define NLEAF(x) \
.align 3; \
.globl x; \
.ent x, 0; \
x: ; \
.frame sp, 0, ra; \
ABISETUP
/*
* NON_LEAF(x)
*
* Declare a non-leaf routine (a routine that makes other C calls).
*/
#define NON_LEAF(x, fsize, retpc) \
.align 3; \
.globl x; \
.ent x, 0; \
x: ; \
.frame sp, fsize, retpc; \
ABISETUP \
MCOUNT
/*
* NNON_LEAF(x)
*
* Declare a non-profiled non-leaf routine
* (a routine that makes other C calls).
*/
#define NNON_LEAF(x, fsize, retpc) \
.align 3; \
.globl x; \
.ent x, 0; \
x: ; \
.frame sp, fsize, retpc \
ABISETUP
/*
* END(x)
*
* Mark end of a procedure.
*/
#define END(x) \
.end x
#define STAND_FRAME_SIZE 24
#define STAND_RA_OFFSET 20
/*
* Macros to panic and printf from assembly language.
*/
#define PANIC(msg) \
la a0, 9f; \
jal panic; \
MSG(msg)
#define PRINTF(msg) \
la a0, 9f; \
jal printf; \
MSG(msg)
#define MSG(msg) \
.rdata; \
9: .asciiz msg; \
.text
#define ASMSTR(str) \
.asciiz str; \
.align 3
#endif /* _MIPS_ASM_H */
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