255 lines
5.5 KiB
C
255 lines
5.5 KiB
C
/* $OpenBSD: asm.h,v 1.2 1998/03/16 09:03:02 pefo Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Copyright (C) 1989 Digital Equipment Corporation.
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby granted,
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* provided that the above copyright notice appears in all copies.
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* Digital Equipment Corporation makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*/
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#ifndef _MIPS_ASM_H
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#define _MIPS_ASM_H
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#include <asm/regdef.h>
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#ifndef ABICALLS
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#define ABICALLS .abicalls
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#endif
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#if defined(ABICALLS) && !defined(_KERNEL)
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ABICALLS
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#endif
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#define RCSID(x)
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/*
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* Define how to access unaligned data word
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*/
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#if defined(__MIPSEL__)
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#define LWLO lwl
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#define LWHI lwr
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#define SWLO swl
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#define SWHI swr
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#else
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#if defined(__MIPSEB__)
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#define LWLO lwr
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#define LWHI lwl
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#define SWLO swr
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#define SWHI swl
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#else
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#error "__MIPSEL__ or __MIPSEB__ must be defined"
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#endif
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#endif
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/*
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* Code for setting gp reg if abicalls are used.
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*/
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#if defined(ABICALLS) && !defined(_KERNEL)
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#define ABISETUP \
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.set noreorder; \
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.cpload t9; \
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.set reorder;
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#else
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#define ABISETUP
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#endif
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/*
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* Define -pg profile entry code.
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*/
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#if defined(GPROF) || defined(PROF)
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#define MCOUNT \
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subu sp, sp, 32; \
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.cprestore 16; \
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sw ra, 28(sp); \
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sw gp, 24(sp); \
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.set noat; \
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.set noreorder; \
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move AT, ra; \
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jal _mcount; \
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subu sp, sp, 8; \
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lw ra, 28(sp); \
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addu sp, sp, 32; \
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.set reorder; \
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.set at;
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#else
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#define MCOUNT
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#endif
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/*
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* LEAF(x)
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*
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* Declare a leaf routine.
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*/
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#define LEAF(x) \
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.align 3; \
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.globl x; \
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.ent x, 0; \
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x: ; \
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.frame sp, 0, ra; \
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ABISETUP \
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MCOUNT
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#define ALEAF(x) \
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.globl x; \
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x:
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/*
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* NLEAF(x)
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*
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* Declare a non-profiled leaf routine.
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*/
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#define NLEAF(x) \
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.align 3; \
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.globl x; \
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.ent x, 0; \
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x: ; \
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.frame sp, 0, ra; \
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ABISETUP
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/*
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* NON_LEAF(x)
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*
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* Declare a non-leaf routine (a routine that makes other C calls).
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*/
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#define NON_LEAF(x, fsize, retpc) \
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.align 3; \
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.globl x; \
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.ent x, 0; \
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x: ; \
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.frame sp, fsize, retpc; \
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ABISETUP \
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MCOUNT
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/*
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* NNON_LEAF(x)
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*
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* Declare a non-profiled non-leaf routine
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* (a routine that makes other C calls).
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*/
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#define NNON_LEAF(x, fsize, retpc) \
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.align 3; \
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.globl x; \
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.ent x, 0; \
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x: ; \
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.frame sp, fsize, retpc \
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ABISETUP
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/*
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* END(x)
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*
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* Mark end of a procedure.
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*/
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#define END(x) \
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.end x
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/*
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* Macros to panic and printf from assembly language.
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*/
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#define PANIC(msg) \
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la a0, 9f; \
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jal panic; \
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MSG(msg)
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#define PRINTF(msg) \
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la a0, 9f; \
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jal printf; \
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MSG(msg)
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#define MSG(msg) \
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.rdata; \
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9: .asciiz msg; \
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.text
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#define ASMSTR(str) \
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.asciiz str; \
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.align 3
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#if (_MIPS_SZPTR == 32)
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#define PTR_ADD add
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#define PTR_ADDU addu
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#define PTR_ADDI addi
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#define PTR_ADDIU addiu
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#define PTR_SUB sub
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#define PTR_SUBU subu
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#define PTR_L lw
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#define PTR_S sw
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#define PTR_LA la
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#define PTR_LI li
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#define PTR_SLL sll
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#define PTR_SLLV sllv
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#define PTR_SRL srl
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#define PTR_SRLV srlv
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#define PTR_SRA sra
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#define PTR_SRAV srav
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#define PTR_SCALESHIFT 2
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#define PTR .word
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#define PTRSIZE 4
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#define PTRLOG 2
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#endif
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#if (_MIPS_SZPTR == 64)
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#define PTR_ADD dadd
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#define PTR_ADDU daddu
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#define PTR_ADDI daddi
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#define PTR_ADDIU daddiu
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#define PTR_SUB dsub
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#define PTR_SUBU dsubu
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#define PTR_L ld
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#define PTR_S sd
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#define PTR_LA dla
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#define PTR_LI dli
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#define PTR_SLL dsll
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#define PTR_SLLV dsllv
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#define PTR_SRL dsrl
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#define PTR_SRLV dsrlv
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#define PTR_SRA dsra
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#define PTR_SRAV dsrav
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#define PTR_SCALESHIFT 3
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#define PTR .dword
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#define PTRSIZE 8
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#define PTRLOG 3
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#endif
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#endif /* !_MIPS_ASM_H */
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