1/*
2 * Copyright (c) 2010-2011 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated

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40 * Authors: Stephen Hines
41 */
42
43#ifndef __ARCH_ARM_REGISTERS_HH__
44#define __ARCH_ARM_REGISTERS_HH__
45
46#include "arch/arm/generated/max_inst_regs.hh"
47#include "arch/arm/intregs.hh"
48#include "arch/arm/miscregs.hh"
49
50namespace ArmISA {
51
52
53// For a predicated instruction, we need all the
54// destination registers to also be sources
55const int MaxInstSrcRegs = ArmISAInst::MaxInstDestRegs +

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63
64// floating point register file entry type
65typedef uint32_t FloatRegBits;
66typedef float FloatReg;
67
68// cop-0/cop-1 system control register
69typedef uint64_t MiscReg;
70
71// dummy typedef since we don't have CC regs
72typedef uint8_t CCReg;
73
74// Constants Related to the number of registers
75const int NumIntArchRegs = NUM_ARCH_INTREGS;
76// The number of single precision floating point registers
77const int NumFloatV7ArchRegs = 64;
78const int NumFloatV8ArchRegs = 128;
79const int NumFloatSpecialRegs = 32;
80
81const int NumIntRegs = NUM_INTREGS;
82const int NumFloatRegs = NumFloatV8ArchRegs + NumFloatSpecialRegs;
83const int NumCCRegs = 0;
84const int NumMiscRegs = NUM_MISCREGS;
85
86const int TotalNumRegs = NumIntRegs + NumFloatRegs + NumMiscRegs;
87
88// semantically meaningful register indices
89const int ReturnValueReg = 0;
90const int ReturnValueReg1 = 1;
91const int ReturnValueReg2 = 2;
92const int NumArgumentRegs = 4;
93const int NumArgumentRegs64 = 8;

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104
105const int SyscallNumReg = ReturnValueReg;
106const int SyscallPseudoReturnReg = ReturnValueReg;
107const int SyscallSuccessReg = ReturnValueReg;
108
109// These help enumerate all the registers for dependence tracking.
110const int FP_Reg_Base = NumIntRegs * (MODE_MAXMODE + 1);
111const int CC_Reg_Base = FP_Reg_Base + NumFloatRegs;
112const int Misc_Reg_Base = CC_Reg_Base + NumCCRegs; // NumCCRegs == 0
113const int Max_Reg_Index = Misc_Reg_Base + NumMiscRegs;
114
115typedef union {
116 IntReg intreg;
117 FloatReg fpreg;
118 MiscReg ctrlreg;
119} AnyReg;
120
121} // namespace ArmISA
122
123#endif