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Annotation of sys/arch/mips64/include/regdef.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: regdef.h,v 1.3 2005/08/07 07:29:44 miod Exp $ */
                      2:
                      3: /*
                      4:  * Copyright (c) 1992, 1993
                      5:  *     The Regents of the University of California.  All rights reserved.
                      6:  *
                      7:  * This code is derived from software contributed to Berkeley by
                      8:  * Ralph Campbell. This file is derived from the MIPS RISC
                      9:  * Architecture book by Gerry Kane.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
                     19:  * 3. Neither the name of the University nor the names of its contributors
                     20:  *    may be used to endorse or promote products derived from this software
                     21:  *    without specific prior written permission.
                     22:  *
                     23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     33:  * SUCH DAMAGE.
                     34:  *
                     35:  *     @(#)regdef.h    8.1 (Berkeley) 6/10/93
                     36:  */
                     37: #ifndef _MIPS_REGDEF_H_
                     38: #define _MIPS_REGDEF_H_
                     39:
                     40: #define zero   $0      /* always zero */
                     41: #define AT     $at     /* assembler temp */
                     42: #define v0     $2      /* return value */
                     43: #define v1     $3
                     44: #define a0     $4      /* argument registers */
                     45: #define a1     $5
                     46: #define a2     $6
                     47: #define a3     $7
                     48: #if defined(__mips_n32) || defined(__mips_n64)
                     49: #define a4     $8      /* expanded register arguments */
                     50: #define a5     $9
                     51: #define a6     $10
                     52: #define a7     $11
                     53: #define ta0    $8      /* alias */
                     54: #define ta1    $9
                     55: #define ta2    $10
                     56: #define ta3    $11
                     57: #define t0     $12     /* temp registers (not saved across subroutine calls) */
                     58: #define t1     $13
                     59: #define t2     $14
                     60: #define t3     $15
                     61: #else
                     62: #define t0     $8      /* temp registers (not saved across subroutine calls) */
                     63: #define t1     $9
                     64: #define t2     $10
                     65: #define t3     $11
                     66: #define t4     $12
                     67: #define t5     $13
                     68: #define t6     $14
                     69: #define t7     $15
                     70: #define ta0    $12     /* alias */
                     71: #define ta1    $13
                     72: #define ta2    $14
                     73: #define ta3    $15
                     74: #endif
                     75: #define s0     $16     /* saved across subroutine calls (callee saved) */
                     76: #define s1     $17
                     77: #define s2     $18
                     78: #define s3     $19
                     79: #define s4     $20
                     80: #define s5     $21
                     81: #define s6     $22
                     82: #define s7     $23
                     83: #define t8     $24     /* two more temp registers */
                     84: #define t9     $25
                     85: #define k0     $26     /* kernel temporary */
                     86: #define k1     $27
                     87: #define gp     $28     /* global pointer */
                     88: #define sp     $29     /* stack pointer */
                     89: #define s8     $30     /* one more callee saved */
                     90: #define ra     $31     /* return address */
                     91:
                     92: #endif /* !_MIPS_REGDEF_H_ */