bitfields.isa revision 7116
1// -*- mode:c++ -*-
2
3// Copyright (c) 2010 ARM Limited
4// All rights reserved
5//
6// The license below extends only to copyright in the software and shall
7// not be construed as granting a license to any other intellectual
8// property including but not limited to intellectual property relating
9// to a hardware implementation of the functionality of the software
10// licensed hereunder.  You may use the software subject to the license
11// terms below provided that you ensure that this notice is replicated
12// unmodified and in its entirety in all distributions of the software,
13// modified or unmodified, in source code or in binary form.
14//
15// Copyright (c) 2007-2008 The Florida State University
16// All rights reserved.
17//
18// Redistribution and use in source and binary forms, with or without
19// modification, are permitted provided that the following conditions are
20// met: redistributions of source code must retain the above copyright
21// notice, this list of conditions and the following disclaimer;
22// redistributions in binary form must reproduce the above copyright
23// notice, this list of conditions and the following disclaimer in the
24// documentation and/or other materials provided with the distribution;
25// neither the name of the copyright holders nor the names of its
26// contributors may be used to endorse or promote products derived from
27// this software without specific prior written permission.
28//
29// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
30// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
31// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
32// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
33// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
34// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
35// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
36// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
37// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
38// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
39// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40//
41// Authors: Stephen Hines
42
43////////////////////////////////////////////////////////////////////
44//
45// Bitfield definitions.
46//
47
48// Opcode fields
49def bitfield ENCODING      encoding;
50def bitfield OPCODE        opcode;
51def bitfield MEDIA_OPCODE  mediaOpcode;
52def bitfield MEDIA_OPCODE2 mediaOpcode2;
53def bitfield USEIMM        useImm;
54def bitfield OPCODE_24     opcode24;
55def bitfield OPCODE_23_20  opcode23_20;
56def bitfield OPCODE_23_21  opcode23_21;
57def bitfield OPCODE_22     opcode22;
58def bitfield OPCODE_20     opcode20;
59def bitfield OPCODE_19_16  opcode19_16;
60def bitfield OPCODE_19     opcode19;
61def bitfield OPCODE_18     opcode18;
62def bitfield OPCODE_15_12  opcode15_12;
63def bitfield OPCODE_15     opcode15;
64def bitfield MISC_OPCODE   miscOpcode;
65def bitfield OPC2          opc2; 
66def bitfield OPCODE_7      opcode7;
67def bitfield OPCODE_6      opcode6;
68def bitfield OPCODE_4      opcode4;
69
70def bitfield IS_MISC       isMisc;
71def bitfield SEVEN_AND_FOUR sevenAndFour;
72
73def bitfield THUMB         thumb;
74def bitfield BIGTHUMB      bigThumb;
75
76// Other
77def bitfield COND_CODE     condCode;
78def bitfield S_FIELD       sField;
79def bitfield RN            rn;
80def bitfield RD            rd;
81def bitfield SHIFT_SIZE    shiftSize;
82def bitfield SHIFT         shift;
83def bitfield RM            rm;
84
85def bitfield RS            rs;
86
87def bitfield PUSWL         puswl;
88def bitfield PREPOST       puswl.prepost;
89def bitfield UP               puswl.up;
90def bitfield PSRUSER       puswl.psruser;
91def bitfield WRITEBACK     puswl.writeback;
92def bitfield LOADOP        puswl.loadOp;
93
94def bitfield PUBWL         pubwl;
95
96def bitfield IMM           imm;
97
98def bitfield IMMED_11_0    immed11_0;
99
100def bitfield IMMED_HI_11_8 immedHi11_8;
101def bitfield IMMED_LO_3_0  immedLo3_0;
102
103def bitfield IMMED_23_0    immed23_0;
104
105def bitfield CPNUM         cpNum;
106// Note that FP Regs are only 3 bits
107def bitfield FN            fn;
108def bitfield FD            fd;
109def bitfield FPREGIMM      fpRegImm;
110// We can just use 3:0 for FM since the hard-wired FP regs are handled in
111// float_regfile.hh
112def bitfield FM            fm;
113def bitfield FPIMM         fpImm;
114def bitfield PUNWL         punwl;
115
116// M5 instructions
117def bitfield M5FUNC        m5Func;
118
119// 16 bit thumb bitfields
120def bitfield TOPCODE_15_13  topcode15_13;
121def bitfield TOPCODE_13_11  topcode13_11;
122def bitfield TOPCODE_12_11  topcode12_11;
123def bitfield TOPCODE_12_10  topcode12_10;
124def bitfield TOPCODE_11_9   topcode11_9;
125def bitfield TOPCODE_11_8   topcode11_8;
126def bitfield TOPCODE_10_9   topcode10_9;
127def bitfield TOPCODE_10_8   topcode10_8;
128def bitfield TOPCODE_9_6    topcode9_6;
129def bitfield TOPCODE_7      topcode7;
130def bitfield TOPCODE_7_6    topcode7_6;
131def bitfield TOPCODE_7_5    topcode7_5;
132def bitfield TOPCODE_7_4    topcode7_4;
133def bitfield TOPCODE_3_0    topcode3_0;
134
135// 32 bit thumb bitfields
136def bitfield HTOPCODE_12_11 htopcode12_11;
137def bitfield HTOPCODE_10_9  htopcode10_9;
138def bitfield HTOPCODE_9     htopcode9;
139def bitfield HTOPCODE_9_8   htopcode9_8;
140def bitfield HTOPCODE_9_5   htopcode9_5;
141def bitfield HTOPCODE_9_4   htopcode9_4;
142def bitfield HTOPCODE_8     htopcode8;
143def bitfield HTOPCODE_8_7   htopcode8_7;
144def bitfield HTOPCODE_8_6   htopcode8_6;
145def bitfield HTOPCODE_8_5   htopcode8_5;
146def bitfield HTOPCODE_7     htopcode7;
147def bitfield HTOPCODE_7_5   htopcode7_5;
148def bitfield HTOPCODE_6_5   htopcode6_5;
149def bitfield HTOPCODE_5_4   htopcode5_4;
150def bitfield HTOPCODE_4     htopcode4;
151
152def bitfield HTRN           htrn;
153def bitfield HTS            hts;
154
155def bitfield LTOPCODE_15    ltopcode15;
156def bitfield LTOPCODE_11_8  ltopcode11_8;
157def bitfield LTOPCODE_7_6   ltopcode7_6;
158def bitfield LTOPCODE_7_4   ltopcode7_4;
159def bitfield LTOPCODE_4     ltopcode4;
160
161def bitfield LTRD           ltrd;
162def bitfield LTCOPROC       ltcoproc;
163