1// -*- mode:c++ -*-
2
3// Copyright (c) 2006 The Regents of The University of Michigan
4// All rights reserved.
5//
6// Redistribution and use in source and binary forms, with or without
7// modification, are permitted provided that the following conditions are
8// met: redistributions of source code must retain the above copyright
9// notice, this list of conditions and the following disclaimer;
10// redistributions in binary form must reproduce the above copyright
11// notice, this list of conditions and the following disclaimer in the
12// documentation and/or other materials provided with the distribution;
13// neither the name of the copyright holders nor the names of its
14// contributors may be used to endorse or promote products derived from
15// this software without specific prior written permission.
16//
17// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28//
29// Authors: Korey Sewell
30
31////////////////////////////////////////////////////////////////////
32//
33// Floating Point operate instructions
34//
35
36output header {{
37 /**
38 * Base class for FP operations.

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86 }
87}};
88
89output exec {{
90 inline Fault checkFpEnableFault(%(CPU_exec_context)s *xc)
91 {
92 //@TODO: Implement correct CP0 checks to see if the CP1
93 // unit is enable or not
94 return NoFault;
95 }
96
97 //If any operand is Nan return the appropriate QNaN
98 template <class T>
99 bool
100 fpNanOperands(FPOp *inst, %(CPU_exec_context)s *xc, const T &src_type,
101 Trace::InstRecord *traceData)
102 {

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178
179def template FloatingPointExecute {{
180 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const
181 {
182 Fault fault = NoFault;
183
184 %(fp_enable_check)s;
185
186 //When is the right time to reset cause bits?
187 //start of every instruction or every cycle?
188#if FULL_SYSTEM
189 fpResetCauseBits(xc);
190#endif
191 %(op_decl)s;
192 %(op_rd)s;
193

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