div.isa revision 7319:d4e9a5e31a38
12810SN/A// -*- mode:c++ -*-
22810SN/A
32810SN/A// Copyright (c) 2010 ARM Limited
42810SN/A// All rights reserved
52810SN/A//
62810SN/A// The license below extends only to copyright in the software and shall
72810SN/A// not be construed as granting a license to any other intellectual
82810SN/A// property including but not limited to intellectual property relating
92810SN/A// to a hardware implementation of the functionality of the software
102810SN/A// licensed hereunder.  You may use the software subject to the license
112810SN/A// terms below provided that you ensure that this notice is replicated
122810SN/A// unmodified and in its entirety in all distributions of the software,
132810SN/A// modified or unmodified, in source code or in binary form.
142810SN/A//
152810SN/A// Redistribution and use in source and binary forms, with or without
162810SN/A// modification, are permitted provided that the following conditions are
172810SN/A// met: redistributions of source code must retain the above copyright
182810SN/A// notice, this list of conditions and the following disclaimer;
192810SN/A// redistributions in binary form must reproduce the above copyright
202810SN/A// notice, this list of conditions and the following disclaimer in the
212810SN/A// documentation and/or other materials provided with the distribution;
222810SN/A// neither the name of the copyright holders nor the names of its
232810SN/A// contributors may be used to endorse or promote products derived from
242810SN/A// this software without specific prior written permission.
252810SN/A//
262810SN/A// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
272810SN/A// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
282810SN/A// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
292810SN/A// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
302810SN/A// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
312810SN/A// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
322810SN/A// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
333861SN/A// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
342810SN/A// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
352810SN/A// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
362810SN/A// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
372810SN/A//
382810SN/A// Authors: Gabe Black
398229Snate@binkert.org
408229Snate@binkert.orglet {{
415338Sstever@gmail.com    sdivCode = '''
428831Smrinmoy.ghosh@arm.com    if (Op2.sw == 0) {
432810SN/A        Dest.sw = 0;
443861SN/A    } else if (Op1.sw == INT_MIN && Op2.sw == -1) {
452810SN/A        Dest.sw = INT_MIN;
462810SN/A    } else {
472810SN/A        Dest.sw = Op1.sw / Op2.sw;
485875Ssteve.reinhardt@amd.com    }
495875Ssteve.reinhardt@amd.com    '''
505875Ssteve.reinhardt@amd.com    sdivIop = InstObjParams("sdiv", "Sdiv", "RegRegRegOp",
515875Ssteve.reinhardt@amd.com                            { "code": sdivCode,
525875Ssteve.reinhardt@amd.com                              "predicate_test": predicateTest }, [])
535875Ssteve.reinhardt@amd.com    header_output = RegRegRegOpDeclare.subst(sdivIop)
545875Ssteve.reinhardt@amd.com    decoder_output = RegRegRegOpConstructor.subst(sdivIop)
555875Ssteve.reinhardt@amd.com    exec_output = PredOpExecute.subst(sdivIop)
562810SN/A
572810SN/A    udivCode = '''
585875Ssteve.reinhardt@amd.com    if (Op2.uw == 0) {
595875Ssteve.reinhardt@amd.com        Dest.uw = 0;
602810SN/A    } else {
615875Ssteve.reinhardt@amd.com        Dest.uw = Op1.uw / Op2.uw;
625875Ssteve.reinhardt@amd.com    }
632810SN/A    '''
645875Ssteve.reinhardt@amd.com    udivIop = InstObjParams("udiv", "Udiv", "RegRegRegOp",
652810SN/A                            { "code": udivCode,
665875Ssteve.reinhardt@amd.com                              "predicate_test": predicateTest }, [])
672810SN/A    header_output += RegRegRegOpDeclare.subst(udivIop)
682810SN/A    decoder_output += RegRegRegOpConstructor.subst(udivIop)
692810SN/A    exec_output += PredOpExecute.subst(udivIop)
708831Smrinmoy.ghosh@arm.com}};
718831Smrinmoy.ghosh@arm.com