bitfields.isa (4661:44458219add1) bitfields.isa (5222:bb733a878f85)
1// -*- mode:c++ -*-
2
1// -*- mode:c++ -*-
2
3// Copyright (c) 2006 The Regents of The University of Michigan
4// All rights reserved.
5//
6// Redistribution and use in source and binary forms, with or without
7// modification, are permitted provided that the following conditions are
8// met: redistributions of source code must retain the above copyright
9// notice, this list of conditions and the following disclaimer;
10// redistributions in binary form must reproduce the above copyright
11// notice, this list of conditions and the following disclaimer in the
12// documentation and/or other materials provided with the distribution;
13// neither the name of the copyright holders nor the names of its
14// contributors may be used to endorse or promote products derived from
15// this software without specific prior written permission.
16//
17// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28//
29// Authors: Korey Sewell
3// Copyright .AN) 2007 MIPS Technologies, Inc. All Rights Reserved
30
4
31//@TODO: Make sure the naming convention is consistent here.
5// This software is part of the M5 simulator.
6
7// THIS IS A LEGAL AGREEMENT. BY DOWNLOADING, USING, COPYING, CREATING
8// DERIVATIVE WORKS, AND/OR DISTRIBUTING THIS SOFTWARE YOU ARE AGREEING
9// TO THESE TERMS AND CONDITIONS.
10
11// Permission is granted to use, copy, create derivative works and
12// distribute this software and such derivative works for any purpose,
13// so long as (1) the copyright notice above, this grant of permission,
14// and the disclaimer below appear in all copies and derivative works
15// made, (2) the copyright notice above is augmented as appropriate to
16// reflect the addition of any new copyrightable work in a derivative
17// work (e.g., Copyright .AN) <Publication Year> Copyright Owner), and (3)
18// the name of MIPS Technologies, Inc. ($B!H(BMIPS$B!I(B) is not used in any
19// advertising or publicity pertaining to the use or distribution of
20// this software without specific, written prior authorization.
21
22// THIS SOFTWARE IS PROVIDED $B!H(BAS IS.$B!I(B MIPS MAKES NO WARRANTIES AND
23// DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS, STATUTORY, IMPLIED OR
24// OTHERWISE, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
26// NON-INFRINGEMENT OF THIRD PARTY RIGHTS, REGARDING THIS SOFTWARE.
27// IN NO EVENT SHALL MIPS BE LIABLE FOR ANY DAMAGES, INCLUDING DIRECT,
28// INDIRECT, INCIDENTAL, CONSEQUENTIAL, SPECIAL, OR PUNITIVE DAMAGES OF
29// ANY KIND OR NATURE, ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT,
30// THIS SOFTWARE AND/OR THE USE OF THIS SOFTWARE, WHETHER SUCH LIABILITY
31// IS ASSERTED ON THE BASIS OF CONTRACT, TORT (INCLUDING NEGLIGENCE OR
32// STRICT LIABILITY), OR OTHERWISE, EVEN IF MIPS HAS BEEN WARNED OF THE
33// POSSIBILITY OF ANY SUCH LOSS OR DAMAGE IN ADVANCE.
34
35//Authors: Korey L. Sewell
36// Jaidev Patwardhan
37
38
32////////////////////////////////////////////////////////////////////
33//
34// Bitfield definitions.
35//
36
37def bitfield OPCODE <31:26>;
38def bitfield OPCODE_HI <31:29>;
39def bitfield OPCODE_LO <28:26>;

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114def bitfield ACSRC <22:21>;
115def bitfield ACDST <12:11>;
116def bitfield BP <12:11>;
117
118// MT Instructions
119def bitfield POS <10: 6>;
120def bitfield MT_U <5:5>;
121def bitfield MT_H <4:4>;
39////////////////////////////////////////////////////////////////////
40//
41// Bitfield definitions.
42//
43
44def bitfield OPCODE <31:26>;
45def bitfield OPCODE_HI <31:29>;
46def bitfield OPCODE_LO <28:26>;

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121def bitfield ACSRC <22:21>;
122def bitfield ACDST <12:11>;
123def bitfield BP <12:11>;
124
125// MT Instructions
126def bitfield POS <10: 6>;
127def bitfield MT_U <5:5>;
128def bitfield MT_H <4:4>;
129
130//Cache Ops
131def bitfield CACHE_OP <20:16>;