--- /dev/null
- void copyMiscRegs(ExecContext *xc);
-
+ /*
+ * Copyright (c) 2003-2005 The Regents of The University of Michigan
+ * 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.
+ */
+
+ #ifndef __ARCH_ALPHA_REGFILE_HH__
+ #define __ARCH_ALPHA_REGFILE_HH__
+
+ #include "arch/alpha/types.hh"
+ #include "arch/alpha/constants.hh"
+ #include "sim/faults.hh"
+
+ class Checkpoint;
++class ExecContext;
+
+ namespace AlphaISA
+ {
+
+ typedef IntReg IntRegFile[NumIntRegs];
+
+ class FloatRegFile
+ {
+ protected:
+
+ union {
+ uint64_t q[NumFloatRegs]; // integer qword view
+ double d[NumFloatRegs]; // double-precision floating point view
+ };
+
+ public:
+
+ FloatReg readReg(int floatReg)
+ {
+ return d[floatReg];
+ }
+
+ FloatReg readReg(int floatReg, int width)
+ {
+ return readReg(floatReg);
+ }
+
+ FloatRegBits readRegBits(int floatReg)
+ {
+ return q[floatReg];
+ }
+
+ FloatRegBits readRegBits(int floatReg, int width)
+ {
+ return readRegBits(floatReg);
+ }
+
+ Fault setReg(int floatReg, const FloatReg &val)
+ {
+ d[floatReg] = val;
+ return NoFault;
+ }
+
+ Fault setReg(int floatReg, const FloatReg &val, int width)
+ {
+ return setReg(floatReg, val);
+ }
+
+ Fault setRegBits(int floatReg, const FloatRegBits &val)
+ {
+ q[floatReg] = val;
+ return NoFault;
+ }
+
+ Fault setRegBits(int floatReg, const FloatRegBits &val, int width)
+ {
+ return setRegBits(floatReg, val);
+ }
+
+ void serialize(std::ostream &os);
+
+ void unserialize(Checkpoint *cp, const std::string §ion);
+
+ };
+
+ class MiscRegFile {
+ protected:
+ uint64_t fpcr; // floating point condition codes
+ uint64_t uniq; // process-unique register
+ bool lock_flag; // lock flag for LL/SC
+ Addr lock_addr; // lock address for LL/SC
+
+ public:
+ MiscReg readReg(int misc_reg);
+
+ //These functions should be removed once the simplescalar cpu model
+ //has been replaced.
+ int getInstAsid();
+ int getDataAsid();
+
+ MiscReg readRegWithEffect(int misc_reg, Fault &fault, ExecContext *xc);
+
+ Fault setReg(int misc_reg, const MiscReg &val);
+
+ Fault setRegWithEffect(int misc_reg, const MiscReg &val,
+ ExecContext *xc);
+
-
- void copyIprs(ExecContext *xc);
+ #if FULL_SYSTEM
+ protected:
+ typedef uint64_t InternalProcReg;
+
+ InternalProcReg ipr[NumInternalProcRegs]; // Internal processor regs
+
+ private:
+ InternalProcReg readIpr(int idx, Fault &fault, ExecContext *xc);
+
+ Fault setIpr(int idx, InternalProcReg val, ExecContext *xc);
+ #endif
+ friend class RegFile;
+ };
+
+ struct RegFile {
+ IntRegFile intRegFile; // (signed) integer register file
+ FloatRegFile floatRegFile; // floating point register file
+ MiscRegFile miscRegs; // control register file
+ Addr pc; // program counter
+ Addr npc; // next-cycle program counter
+ Addr nnpc;
+
+ #if FULL_SYSTEM
+ int intrflag; // interrupt flag
+ inline int instAsid()
+ { return miscRegs.getInstAsid(); }
+ inline int dataAsid()
+ { return miscRegs.getDataAsid(); }
+ #endif // FULL_SYSTEM
+
+ void serialize(std::ostream &os);
+ void unserialize(Checkpoint *cp, const std::string §ion);
+ };
+
++ void copyRegs(ExecContext *src, ExecContext *dest);
++
++ void copyMiscRegs(ExecContext *src, ExecContext *dest);
++
++#if FULL_SYSTEM
++ void copyIprs(ExecContext *src, ExecContext *dest);
++#endif
+ } // namespace AlphaISA
+
+ #endif