bitfields.isa revision 3991 
1// Copyright (c) 2006-2007 The Regents of The University of Michigan
2// All rights reserved.
3//
4// Redistribution and use in source and binary forms, with or without
5// modification, are permitted provided that the following conditions are
6// met: redistributions of source code must retain the above copyright
7// notice, this list of conditions and the following disclaimer;
8// redistributions in binary form must reproduce the above copyright
9// notice, this list of conditions and the following disclaimer in the
10// documentation and/or other materials provided with the distribution;
11// neither the name of the copyright holders nor the names of its
12// contributors may be used to endorse or promote products derived from
13// this software without specific prior written permission.
14//
15// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26//
27// Authors: Ali Saidi
28//          Gabe Black
29//          Steve Reinhardt
30
31////////////////////////////////////////////////////////////////////
32//
33// Bitfield definitions.
34//
35
36// Bitfields are shared liberally between instruction formats, so they are
37// simply defined alphabetically
38
39def bitfield A		<29>;
40def bitfield BPCC       <21:20>; // for BPcc & FBPcc
41def bitfield FCMPCC     <26:25>; // for FCMP & FCMPEa
42def bitfield FMOVCC     <13:11>; // for FMOVcc
43def bitfield CC         <12:11>; // for MOVcc & Tcc
44def bitfield MOVCC3     <18>; // also for MOVcc
45def bitfield CMASK	<6:4>;
46def bitfield COND2	<28:25>;
47def bitfield COND4	<17:14>;
48def bitfield D16HI	<21:20>;
49def bitfield D16LO	<13:0>;
50def bitfield DISP19	<18:0>;
51def bitfield DISP22	<21:0>;
52def bitfield DISP30	<29:0>;
53def bitfield FCN	<29:25>;
54def bitfield I		<13>;
55def bitfield IMM_ASI	<12:5>;
56def bitfield IMM22	<21:0>;
57def bitfield MMASK	<3:0>;
58def bitfield OP		<31:30>;
59def bitfield OP2	<24:22>;
60def bitfield OP3	<24:19>;
61def bitfield OPF	<13:5>;
62def bitfield OPF_CC	<13:11>;
63def bitfield OPF_LOW5	<9:5>;
64def bitfield OPF_LOW6	<10:5>;
65def bitfield P		<19>;
66def bitfield RCOND2	<27:25>;
67def bitfield RCOND3	<12:10>;
68def bitfield RCOND4	<12:10>;
69def bitfield RD		<29:25>;
70def bitfield RS1	<18:14>;
71def bitfield RS2	<4:0>;
72def bitfield SHCNT32	<4:0>;
73def bitfield SHCNT64	<5:0>;
74def bitfield SIMM10	<9:0>;
75def bitfield SIMM11	<10:0>;
76def bitfield SIMM13	<12:0>;
77def bitfield SW_TRAP	<7:0>;
78def bitfield X		<12>;
79
80// Extended bitfields which aren't part of the actual instruction.
81
82def bitfield EXT_ASI	<39:32>;
83