1/*
2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Gabe Black
29 */
30
31#ifndef __ARCH_SPARC_ISA_TRAITS_HH__
32#define __ARCH_SPARC_ISA_TRAITS_HH__
33
34#include "arch/sparc/types.hh"
35#include "arch/sparc/sparc_traits.hh"
36#include "config/full_system.hh"
37
38class StaticInstPtr;
39
40namespace BigEndianGuest {}
41
42#if FULL_SYSTEM
43#include "arch/sparc/isa_fullsys_traits.hh"
44#endif
45
46namespace SparcISA
47{
48 class RegFile;
49
50 //This makes sure the big endian versions of certain functions are used.
51 using namespace BigEndianGuest;
52
53 // SPARC has a delay slot
54 #define ISA_HAS_DELAY_SLOT 1
55
56 // SPARC NOP (sethi %(hi(0), g0)
57 const MachInst NoopMachInst = 0x01000000;
58
59 // These enumerate all the registers for dependence tracking.
60 enum DependenceTags {
61 FP_Base_DepTag = 32*3+8,
62 Ctrl_Base_DepTag = FP_Base_DepTag + 64,
63 };
64
65 // semantically meaningful register indices
66 const int ZeroReg = 0; // architecturally meaningful
67 // the rest of these depend on the ABI
68 const int StackPointerReg = 14;
69 const int ReturnAddressReg = 31; // post call, precall is 15
70 const int ReturnValueReg = 8; // Post return, 24 is pre-return.
71 const int FramePointerReg = 30;
72 const int ArgumentReg0 = 8;

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84
85 //8K. This value is implmentation specific; and should probably
86 //be somewhere else.
87 const int LogVMPageSize = 13;
88 const int VMPageSize = (1 << LogVMPageSize);
89
90 //Why does both the previous set of constants and this one exist?
91 const int PageShift = 13;
92 const int PageBytes = 1ULL << PageShift;
93
94 const int BranchPredAddrShiftAmt = 2;
95
96 StaticInstPtr decodeInst(ExtMachInst);
97}
98
99#endif // __ARCH_SPARC_ISA_TRAITS_HH__