2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
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6 * modification, are permitted provided that the following conditions are
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14 * this software without specific prior written permission.
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
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26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * Authors: Steve Reinhardt
33 #include "cpu/static_inst.hh"
34 #include "sim/core.hh"
36 StaticInstPtr
StaticInst::nullStaticInstPtr
;
38 // Define the decode cache hash map.
39 StaticInst::DecodeCache
StaticInst::decodeCache
;
42 StaticInst::dumpDecodeCacheStats()
46 cerr
<< "Decode hash table stats @ " << curTick
<< ":" << endl
;
47 cerr
<< "\tnum entries = " << decodeCache
.size() << endl
;
48 cerr
<< "\tnum buckets = " << decodeCache
.bucket_count() << endl
;
49 vector
<int> hist(100, 0);
51 for (int i
= 0; i
< decodeCache
.bucket_count(); ++i
) {
52 int count
= decodeCache
.elems_in_bucket(i
);
57 for (int i
= 0; i
<= max_hist
; ++i
) {
58 cerr
<< "\tbuckets of size " << i
<< " = " << hist
[i
] << endl
;
63 StaticInst::hasBranchTarget(Addr pc
, ThreadContext
*tc
, Addr
&tgt
) const
66 tgt
= branchTarget(pc
);
70 if (isIndirectCtrl()) {
71 tgt
= branchTarget(tc
);
79 StaticInst::fetchMicroOp(MicroPC micropc
)
81 panic("StaticInst::fetchMicroOp() called on instruction "
82 "that is not microcoded.");