gem5/src/arch/arm/types.hh
Gabe Black 0dd1f7f01a CPU: Trim unnecessary includes from some common files.
This reduces the scope of those includes and makes it less likely for there to
be a dependency loop. This also moves the hashing functions associated with
ExtMachInst objects to be with the ExtMachInst definitions and out of
utility.hh.
2010-09-14 00:29:38 -07:00

283 lines
8.1 KiB
C++

/*
* Copyright (c) 2010 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Copyright (c) 2007-2008 The Florida State University
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Stephen Hines
*/
#ifndef __ARCH_ARM_TYPES_HH__
#define __ARCH_ARM_TYPES_HH__
#include "base/bitunion.hh"
#include "base/hashmap.hh"
#include "base/types.hh"
namespace ArmISA
{
typedef uint32_t MachInst;
BitUnion64(ExtMachInst)
Bitfield<63, 56> newItstate;
// ITSTATE bits
Bitfield<55, 48> itstate;
Bitfield<55, 52> itstateCond;
Bitfield<51, 48> itstateMask;
// FPSCR fields
Bitfield<41, 40> fpscrStride;
Bitfield<39, 37> fpscrLen;
// Bitfields to select mode.
Bitfield<36> thumb;
Bitfield<35> bigThumb;
// Made up bitfields that make life easier.
Bitfield<33> sevenAndFour;
Bitfield<32> isMisc;
uint32_t instBits;
// All the different types of opcode fields.
Bitfield<27, 25> encoding;
Bitfield<25> useImm;
Bitfield<24, 21> opcode;
Bitfield<24, 20> mediaOpcode;
Bitfield<24> opcode24;
Bitfield<24, 23> opcode24_23;
Bitfield<23, 20> opcode23_20;
Bitfield<23, 21> opcode23_21;
Bitfield<20> opcode20;
Bitfield<22> opcode22;
Bitfield<19, 16> opcode19_16;
Bitfield<19> opcode19;
Bitfield<18> opcode18;
Bitfield<15, 12> opcode15_12;
Bitfield<15> opcode15;
Bitfield<7, 4> miscOpcode;
Bitfield<7,5> opc2;
Bitfield<7> opcode7;
Bitfield<6> opcode6;
Bitfield<4> opcode4;
Bitfield<31, 28> condCode;
Bitfield<20> sField;
Bitfield<19, 16> rn;
Bitfield<15, 12> rd;
Bitfield<15, 12> rt;
Bitfield<11, 7> shiftSize;
Bitfield<6, 5> shift;
Bitfield<3, 0> rm;
Bitfield<11, 8> rs;
SubBitUnion(puswl, 24, 20)
Bitfield<24> prepost;
Bitfield<23> up;
Bitfield<22> psruser;
Bitfield<21> writeback;
Bitfield<20> loadOp;
EndSubBitUnion(puswl)
Bitfield<24, 20> pubwl;
Bitfield<7, 0> imm;
Bitfield<11, 8> rotate;
Bitfield<11, 0> immed11_0;
Bitfield<7, 0> immed7_0;
Bitfield<11, 8> immedHi11_8;
Bitfield<3, 0> immedLo3_0;
Bitfield<15, 0> regList;
Bitfield<23, 0> offset;
Bitfield<23, 0> immed23_0;
Bitfield<11, 8> cpNum;
Bitfield<18, 16> fn;
Bitfield<14, 12> fd;
Bitfield<3> fpRegImm;
Bitfield<3, 0> fm;
Bitfield<2, 0> fpImm;
Bitfield<24, 20> punwl;
Bitfield<7, 0> m5Func;
// 16 bit thumb bitfields
Bitfield<15, 13> topcode15_13;
Bitfield<13, 11> topcode13_11;
Bitfield<12, 11> topcode12_11;
Bitfield<12, 10> topcode12_10;
Bitfield<11, 9> topcode11_9;
Bitfield<11, 8> topcode11_8;
Bitfield<10, 9> topcode10_9;
Bitfield<10, 8> topcode10_8;
Bitfield<9, 6> topcode9_6;
Bitfield<7> topcode7;
Bitfield<7, 6> topcode7_6;
Bitfield<7, 5> topcode7_5;
Bitfield<7, 4> topcode7_4;
Bitfield<3, 0> topcode3_0;
// 32 bit thumb bitfields
Bitfield<28, 27> htopcode12_11;
Bitfield<26, 25> htopcode10_9;
Bitfield<25> htopcode9;
Bitfield<25, 24> htopcode9_8;
Bitfield<25, 21> htopcode9_5;
Bitfield<25, 20> htopcode9_4;
Bitfield<24> htopcode8;
Bitfield<24, 23> htopcode8_7;
Bitfield<24, 22> htopcode8_6;
Bitfield<24, 21> htopcode8_5;
Bitfield<23> htopcode7;
Bitfield<23, 21> htopcode7_5;
Bitfield<22> htopcode6;
Bitfield<22, 21> htopcode6_5;
Bitfield<21, 20> htopcode5_4;
Bitfield<20> htopcode4;
Bitfield<19, 16> htrn;
Bitfield<20> hts;
Bitfield<15> ltopcode15;
Bitfield<11, 8> ltopcode11_8;
Bitfield<7, 6> ltopcode7_6;
Bitfield<7, 4> ltopcode7_4;
Bitfield<4> ltopcode4;
Bitfield<11, 8> ltrd;
Bitfield<11, 8> ltcoproc;
EndBitUnion(ExtMachInst)
// Shift types for ARM instructions
enum ArmShiftType {
LSL = 0,
LSR,
ASR,
ROR
};
typedef uint64_t LargestRead;
// Need to use 64 bits to make sure that read requests get handled properly
typedef int RegContextParam;
typedef int RegContextVal;
//used in FP convert & round function
enum ConvertType{
SINGLE_TO_DOUBLE,
SINGLE_TO_WORD,
SINGLE_TO_LONG,
DOUBLE_TO_SINGLE,
DOUBLE_TO_WORD,
DOUBLE_TO_LONG,
LONG_TO_SINGLE,
LONG_TO_DOUBLE,
LONG_TO_WORD,
LONG_TO_PS,
WORD_TO_SINGLE,
WORD_TO_DOUBLE,
WORD_TO_LONG,
WORD_TO_PS,
PL_TO_SINGLE,
PU_TO_SINGLE
};
//used in FP convert & round function
enum RoundMode{
RND_ZERO,
RND_DOWN,
RND_UP,
RND_NEAREST
};
enum OperatingMode {
MODE_USER = 16,
MODE_FIQ = 17,
MODE_IRQ = 18,
MODE_SVC = 19,
MODE_MON = 22,
MODE_ABORT = 23,
MODE_UNDEFINED = 27,
MODE_SYSTEM = 31,
MODE_MAXMODE = MODE_SYSTEM
};
static inline bool
badMode(OperatingMode mode)
{
switch (mode) {
case MODE_USER:
case MODE_FIQ:
case MODE_IRQ:
case MODE_SVC:
case MODE_MON:
case MODE_ABORT:
case MODE_UNDEFINED:
case MODE_SYSTEM:
return false;
default:
return true;
}
}
struct CoreSpecific {
// Empty for now on the ARM
};
} // namespace ArmISA
namespace __hash_namespace {
template<>
struct hash<ArmISA::ExtMachInst> : public hash<uint32_t> {
size_t operator()(const ArmISA::ExtMachInst &emi) const {
return hash<uint32_t>::operator()((uint32_t)emi);
};
};
}
#endif