2010-06-02 19:58:11 +02:00
|
|
|
// -*- mode:c++ -*-
|
|
|
|
|
|
|
|
// Copyright (c) 2010 ARM Limited
|
|
|
|
// All rights reserved
|
|
|
|
//
|
|
|
|
// The license below extends only to copyright in the software and shall
|
|
|
|
// not be construed as granting a license to any other intellectual
|
|
|
|
// property including but not limited to intellectual property relating
|
|
|
|
// to a hardware implementation of the functionality of the software
|
|
|
|
// licensed hereunder. You may use the software subject to the license
|
|
|
|
// terms below provided that you ensure that this notice is replicated
|
|
|
|
// unmodified and in its entirety in all distributions of the software,
|
|
|
|
// modified or unmodified, in source code or in binary form.
|
|
|
|
//
|
|
|
|
// 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: Gabe Black
|
|
|
|
|
|
|
|
let {{
|
|
|
|
sdivCode = '''
|
|
|
|
if (Op2.sw == 0) {
|
2010-06-02 19:58:13 +02:00
|
|
|
if (((SCTLR)Sctlr).dz) {
|
|
|
|
#if FULL_SYSTEM
|
|
|
|
return new UndefinedInstruction;
|
|
|
|
#else
|
|
|
|
return new UndefinedInstruction(false, mnemonic);
|
|
|
|
#endif
|
|
|
|
}
|
2010-06-02 19:58:11 +02:00
|
|
|
Dest.sw = 0;
|
|
|
|
} else if (Op1.sw == INT_MIN && Op2.sw == -1) {
|
|
|
|
Dest.sw = INT_MIN;
|
|
|
|
} else {
|
|
|
|
Dest.sw = Op1.sw / Op2.sw;
|
|
|
|
}
|
|
|
|
'''
|
|
|
|
sdivIop = InstObjParams("sdiv", "Sdiv", "RegRegRegOp",
|
|
|
|
{ "code": sdivCode,
|
|
|
|
"predicate_test": predicateTest }, [])
|
|
|
|
header_output = RegRegRegOpDeclare.subst(sdivIop)
|
|
|
|
decoder_output = RegRegRegOpConstructor.subst(sdivIop)
|
|
|
|
exec_output = PredOpExecute.subst(sdivIop)
|
2010-06-02 19:58:11 +02:00
|
|
|
|
|
|
|
udivCode = '''
|
|
|
|
if (Op2.uw == 0) {
|
2010-06-02 19:58:13 +02:00
|
|
|
if (((SCTLR)Sctlr).dz) {
|
|
|
|
#if FULL_SYSTEM
|
|
|
|
return new UndefinedInstruction;
|
|
|
|
#else
|
|
|
|
return new UndefinedInstruction(false, mnemonic);
|
|
|
|
#endif
|
|
|
|
}
|
2010-06-02 19:58:11 +02:00
|
|
|
Dest.uw = 0;
|
|
|
|
} else {
|
|
|
|
Dest.uw = Op1.uw / Op2.uw;
|
|
|
|
}
|
|
|
|
'''
|
|
|
|
udivIop = InstObjParams("udiv", "Udiv", "RegRegRegOp",
|
|
|
|
{ "code": udivCode,
|
|
|
|
"predicate_test": predicateTest }, [])
|
|
|
|
header_output += RegRegRegOpDeclare.subst(udivIop)
|
|
|
|
decoder_output += RegRegRegOpConstructor.subst(udivIop)
|
|
|
|
exec_output += PredOpExecute.subst(udivIop)
|
2010-06-02 19:58:11 +02:00
|
|
|
}};
|