isa.hh revision 8229
1/* 2 * Copyright (c) 2009 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; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 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_ALPHA_ISA_HH__ 32#define __ARCH_ALPHA_ISA_HH__ 33 34#include <cstring> 35#include <iostream> 36#include <string> 37 38#include "arch/alpha/registers.hh" 39#include "arch/alpha/types.hh" 40#include "base/types.hh" 41 42class BaseCPU; 43class Checkpoint; 44class EventManager; 45class ThreadContext; 46 47namespace AlphaISA 48{ 49 class ISA 50 { 51 public: 52 typedef uint64_t InternalProcReg; 53 54 protected: 55 uint64_t fpcr; // floating point condition codes 56 uint64_t uniq; // process-unique register 57 bool lock_flag; // lock flag for LL/SC 58 Addr lock_addr; // lock address for LL/SC 59 int intr_flag; 60 61 InternalProcReg ipr[NumInternalProcRegs]; // Internal processor regs 62 63 protected: 64 InternalProcReg readIpr(int idx, ThreadContext *tc); 65 void setIpr(int idx, InternalProcReg val, ThreadContext *tc); 66 67 public: 68 69 MiscReg readMiscRegNoEffect(int misc_reg, ThreadID tid = 0); 70 MiscReg readMiscReg(int misc_reg, ThreadContext *tc, ThreadID tid = 0); 71 72 void setMiscRegNoEffect(int misc_reg, const MiscReg &val, 73 ThreadID tid = 0); 74 void setMiscReg(int misc_reg, const MiscReg &val, ThreadContext *tc, 75 ThreadID tid = 0); 76 77 void 78 clear() 79 { 80 fpcr = 0; 81 uniq = 0; 82 lock_flag = 0; 83 lock_addr = 0; 84 intr_flag = 0; 85 memset(ipr, 0, sizeof(ipr)); 86 } 87 88 void serialize(EventManager *em, std::ostream &os); 89 void unserialize(EventManager *em, Checkpoint *cp, 90 const std::string §ion); 91 92 int 93 flattenIntIndex(int reg) 94 { 95 return reg; 96 } 97 98 int 99 flattenFloatIndex(int reg) 100 { 101 return reg; 102 } 103 104 ISA() 105 { 106 clear(); 107 initializeIprTable(); 108 } 109 }; 110} 111 112#endif 113