?? asm.h
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/* $OpenBSD: asm.h,v 1.2 1998/03/16 09:03:02 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#ifndef _LIBC#include <machine/regdef.h>#else#include <regdef.h>#endif#ifndef ABICALLS#define ABICALLS .abicalls#endif#if defined(ABICALLS) && !defined(_KERNEL) ABICALLS#endif#define RCSID(x)/* * Define how to access unaligned data word */#if defined(__MIPSEL__)#define LWLO lwl#define LWHI lwr#define SWLO swl#define SWHI swr#else#if defined(__MIPSEB__)#define LWLO lwr#define LWHI lwl#define SWLO swr#define SWHI swl#else#error "__MIPSEL__ or __MIPSEB__ must be defined"#endif#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/* * 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/* * Macros to construct mfc0 and mtc0 instructions for sel != 0 cases * * The following macros are defined to aid the SR71000 porting * effort until such time as the toolchain is proven * to support MIPS64 op encodings. */#define MFC0Sel(reg,c0reg,sel) \ .word (0x40000000 | reg << 16 | c0reg << 11 | sel)#define MTC0Sel(reg,c0reg,sel) \ .word (0x40800000 | reg << 16 | c0reg << 11 | sel)#define DMFC0Sel(reg,c0reg,sel) \ .word (0x40200000 | reg << 16 | c0reg << 11 | sel)#define DMTC0Sel(reg,c0reg,sel) \ .word (0x40a00000 | reg << 16 | c0reg << 11 | sel)#endif /* !_MIPS_ASM_H */
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