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Diffstat (limited to 'sys/arch/mips/include/asm.h')
| -rw-r--r-- | sys/arch/mips/include/asm.h | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/sys/arch/mips/include/asm.h b/sys/arch/mips/include/asm.h new file mode 100644 index 00000000000..d34fdb32dce --- /dev/null +++ b/sys/arch/mips/include/asm.h @@ -0,0 +1,206 @@ +/* $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 */ |