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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28 * Authors: Gabe Black
29 * Ali Saidi
30 */
31
32#ifndef __ARCH_SPARC_ISA_TRAITS_HH__
33#define __ARCH_SPARC_ISA_TRAITS_HH__
34
35#include "arch/sparc/types.hh"
36#include "arch/sparc/sparc_traits.hh"
37#include "config/full_system.hh"
38
39class StaticInstPtr;
40
41namespace BigEndianGuest {}
42
43namespace SparcISA
44{
45 class RegFile;
46
47 //This makes sure the big endian versions of certain functions are used.
48 using namespace BigEndianGuest;
49
50 // SPARC has a delay slot
51 #define ISA_HAS_DELAY_SLOT 1
52
53 // SPARC NOP (sethi %(hi(0), g0)
54 const MachInst NoopMachInst = 0x01000000;
55
56 // These enumerate all the registers for dependence tracking.
57 enum DependenceTags {
58 FP_Base_DepTag = 33,
59 Ctrl_Base_DepTag = 97,
60 };
61
62 // semantically meaningful register indices
63 const int ZeroReg = 0; // architecturally meaningful
64 // the rest of these depend on the ABI
65 const int StackPointerReg = 14;
66 const int ReturnAddressReg = 31; // post call, precall is 15
67 const int ReturnValueReg = 8; // Post return, 24 is pre-return.
68 const int FramePointerReg = 30;
69 const int ArgumentReg0 = 8;

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81
82 //8K. This value is implmentation specific; and should probably
83 //be somewhere else.
84 const int LogVMPageSize = 13;
85 const int VMPageSize = (1 << LogVMPageSize);
86
87 //Why does both the previous set of constants and this one exist?
88 const int PageShift = 13;
89 const int PageBytes = 1ULL << PageShift;
90
91 const int BranchPredAddrShiftAmt = 2;
92
93 StaticInstPtr decodeInst(ExtMachInst);
94
95#if FULL_SYSTEM
96 ////////// Interrupt Stuff ///////////
97 enum InterruptLevels
98 {
99 INTLEVEL_MIN = 1,
100 INTLEVEL_MAX = 15,
101
102 NumInterruptLevels = INTLEVEL_MAX - INTLEVEL_MIN

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