| /* $OpenBSD: regdef.h,v 1.3 2005/08/07 07:29:44 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 _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_ */ |
