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/* $OpenBSD: regdef.h,v 1.2 2004/09/09 22:21:41 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. 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. 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.
*
* @(#)regdef.h 8.1 (Berkeley) 6/10/93
*/
#ifndef _MIPS_REGDEF_H_
#define _MIPS_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
#if defined(__mips_n32) || defined(__mips_n64)
#define a4 $8 /* expanded register arguments */
#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
#else
#define t0 $8 /* temp registers (not saved across subroutine calls) */
#define t1 $9
#define t2 $10
#define t3 $11
#define t4 $12
#define t5 $13
#define t6 $14
#define t7 $15
#define ta0 $12 /* alias */
#define ta1 $13
#define ta2 $14
#define ta3 $15
#endif
#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 /* !_MIPS_REGDEF_H_ */
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