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authorGabe Black <gblack@eecs.umich.edu>2006-11-10 05:29:05 -0500
committerGabe Black <gblack@eecs.umich.edu>2006-11-10 05:29:05 -0500
commit9731fb3fd72ed2e8f5bf3423a33d45a5c35f636f (patch)
treec04443e92240c078159dc75f0c640753b446e4e1 /src/arch/alpha/regfile.cc
parentb4dfbf3aab700f4cc9c5638c2275c588a56778c8 (diff)
downloadgem5-9731fb3fd72ed2e8f5bf3423a33d45a5c35f636f.tar.xz
Moved the Alpha float regfile into it's own regfile and got rid of constants.hh and isa_traits.cc
--HG-- extra : convert_revision : 55afd7d21c276906520da375b3bbb563be420880
Diffstat (limited to 'src/arch/alpha/regfile.cc')
-rw-r--r--src/arch/alpha/regfile.cc101
1 files changed, 101 insertions, 0 deletions
diff --git a/src/arch/alpha/regfile.cc b/src/arch/alpha/regfile.cc
new file mode 100644
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+++ b/src/arch/alpha/regfile.cc
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+/*
+ * 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.
+ *
+ * Authors: Steve Reinhardt
+ * Gabe Black
+ * Kevin Lim
+ */
+
+#include "arch/alpha/regfile.hh"
+#include "cpu/thread_context.hh"
+
+namespace AlphaISA
+{
+ void
+ RegFile::serialize(std::ostream &os)
+ {
+ intRegFile.serialize(os);
+ floatRegFile.serialize(os);
+ miscRegFile.serialize(os);
+ SERIALIZE_SCALAR(pc);
+ SERIALIZE_SCALAR(npc);
+#if FULL_SYSTEM
+ SERIALIZE_SCALAR(intrflag);
+#endif
+ }
+
+ void
+ RegFile::unserialize(Checkpoint *cp, const std::string &section)
+ {
+ intRegFile.unserialize(cp, section);
+ floatRegFile.unserialize(cp, section);
+ miscRegFile.unserialize(cp, section);
+ UNSERIALIZE_SCALAR(pc);
+ UNSERIALIZE_SCALAR(npc);
+#if FULL_SYSTEM
+ UNSERIALIZE_SCALAR(intrflag);
+#endif
+ }
+
+ void
+ copyRegs(ThreadContext *src, ThreadContext *dest)
+ {
+ // First loop through the integer registers.
+ for (int i = 0; i < NumIntRegs; ++i) {
+ dest->setIntReg(i, src->readIntReg(i));
+ }
+
+ // Then loop through the floating point registers.
+ for (int i = 0; i < TheISA::NumFloatRegs; ++i) {
+ dest->setFloatRegBits(i, src->readFloatRegBits(i));
+ }
+
+ // Copy misc. registers
+ copyMiscRegs(src, dest);
+
+ // Lastly copy PC/NPC
+ dest->setPC(src->readPC());
+ dest->setNextPC(src->readNextPC());
+ }
+
+ void
+ copyMiscRegs(ThreadContext *src, ThreadContext *dest)
+ {
+ dest->setMiscReg(AlphaISA::MISCREG_FPCR,
+ src->readMiscReg(AlphaISA::MISCREG_FPCR));
+ dest->setMiscReg(AlphaISA::MISCREG_UNIQ,
+ src->readMiscReg(AlphaISA::MISCREG_UNIQ));
+ dest->setMiscReg(AlphaISA::MISCREG_LOCKFLAG,
+ src->readMiscReg(AlphaISA::MISCREG_LOCKFLAG));
+ dest->setMiscReg(AlphaISA::MISCREG_LOCKADDR,
+ src->readMiscReg(AlphaISA::MISCREG_LOCKADDR));
+
+#if FULL_SYSTEM
+ copyIprs(src, dest);
+#endif
+ }
+}