root/sys/arch/mips64/include/regdef.h
/*      $OpenBSD: regdef.h,v 1.5 2014/03/10 21:10:36 miod 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. This file is derived from the MIPS RISC
 * Architecture book by Gerry Kane.
 *
 * 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. 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.
 *
 *      @(#)regdef.h    8.1 (Berkeley) 6/10/93
 */
#ifndef _MIPS64_REGDEF_H_
#define _MIPS64_REGDEF_H_

#define zero    $0      /* always zero */
#define AT      $at     /* assembler temp */
#define v0      $2      /* return value */
#define v1      $3
#define a0      $4      /* argument registers */
#define a1      $5
#define a2      $6
#define a3      $7
#define a4      $8
#define a5      $9
#define a6      $10
#define a7      $11
#define ta0     $8      /* alias */
#define ta1     $9
#define ta2     $10
#define ta3     $11
#define t0      $12     /* temp registers (not saved across subroutine calls) */
#define t1      $13
#define t2      $14
#define t3      $15
#define s0      $16     /* saved across subroutine calls (callee saved) */
#define s1      $17
#define s2      $18
#define s3      $19
#define s4      $20
#define s5      $21
#define s6      $22
#define s7      $23
#define t8      $24     /* two more temp registers */
#define t9      $25
#define k0      $26     /* kernel temporary */
#define k1      $27
#define gp      $28     /* global pointer */
#define sp      $29     /* stack pointer */
#define s8      $30     /* one more callee saved */
#define ra      $31     /* return address */

#endif /* !_MIPS64_REGDEF_H_ */