div.isa revision 8588
17318Sgblack@eecs.umich.edu// -*- mode:c++ -*- 27318Sgblack@eecs.umich.edu 37318Sgblack@eecs.umich.edu// Copyright (c) 2010 ARM Limited 47318Sgblack@eecs.umich.edu// All rights reserved 57318Sgblack@eecs.umich.edu// 67318Sgblack@eecs.umich.edu// The license below extends only to copyright in the software and shall 77318Sgblack@eecs.umich.edu// not be construed as granting a license to any other intellectual 87318Sgblack@eecs.umich.edu// property including but not limited to intellectual property relating 97318Sgblack@eecs.umich.edu// to a hardware implementation of the functionality of the software 107318Sgblack@eecs.umich.edu// licensed hereunder. You may use the software subject to the license 117318Sgblack@eecs.umich.edu// terms below provided that you ensure that this notice is replicated 127318Sgblack@eecs.umich.edu// unmodified and in its entirety in all distributions of the software, 137318Sgblack@eecs.umich.edu// modified or unmodified, in source code or in binary form. 147318Sgblack@eecs.umich.edu// 157318Sgblack@eecs.umich.edu// Redistribution and use in source and binary forms, with or without 167318Sgblack@eecs.umich.edu// modification, are permitted provided that the following conditions are 177318Sgblack@eecs.umich.edu// met: redistributions of source code must retain the above copyright 187318Sgblack@eecs.umich.edu// notice, this list of conditions and the following disclaimer; 197318Sgblack@eecs.umich.edu// redistributions in binary form must reproduce the above copyright 207318Sgblack@eecs.umich.edu// notice, this list of conditions and the following disclaimer in the 217318Sgblack@eecs.umich.edu// documentation and/or other materials provided with the distribution; 227318Sgblack@eecs.umich.edu// neither the name of the copyright holders nor the names of its 237318Sgblack@eecs.umich.edu// contributors may be used to endorse or promote products derived from 247318Sgblack@eecs.umich.edu// this software without specific prior written permission. 257318Sgblack@eecs.umich.edu// 267318Sgblack@eecs.umich.edu// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 277318Sgblack@eecs.umich.edu// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 287318Sgblack@eecs.umich.edu// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 297318Sgblack@eecs.umich.edu// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 307318Sgblack@eecs.umich.edu// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 317318Sgblack@eecs.umich.edu// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 327318Sgblack@eecs.umich.edu// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 337318Sgblack@eecs.umich.edu// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 347318Sgblack@eecs.umich.edu// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 357318Sgblack@eecs.umich.edu// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 367318Sgblack@eecs.umich.edu// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 377318Sgblack@eecs.umich.edu// 387318Sgblack@eecs.umich.edu// Authors: Gabe Black 397318Sgblack@eecs.umich.edu 407318Sgblack@eecs.umich.edulet {{ 417318Sgblack@eecs.umich.edu sdivCode = ''' 428588Sgblack@eecs.umich.edu if (Op2_sw == 0) { 437361Sgblack@eecs.umich.edu if (((SCTLR)Sctlr).dz) { 447361Sgblack@eecs.umich.edu#if FULL_SYSTEM 457361Sgblack@eecs.umich.edu return new UndefinedInstruction; 467361Sgblack@eecs.umich.edu#else 477361Sgblack@eecs.umich.edu return new UndefinedInstruction(false, mnemonic); 487361Sgblack@eecs.umich.edu#endif 497361Sgblack@eecs.umich.edu } 508588Sgblack@eecs.umich.edu Dest_sw = 0; 518588Sgblack@eecs.umich.edu } else if (Op1_sw == INT_MIN && Op2_sw == -1) { 528588Sgblack@eecs.umich.edu Dest_sw = INT_MIN; 537318Sgblack@eecs.umich.edu } else { 548588Sgblack@eecs.umich.edu Dest_sw = Op1_sw / Op2_sw; 557318Sgblack@eecs.umich.edu } 567318Sgblack@eecs.umich.edu ''' 577318Sgblack@eecs.umich.edu sdivIop = InstObjParams("sdiv", "Sdiv", "RegRegRegOp", 587318Sgblack@eecs.umich.edu { "code": sdivCode, 597760SGiacomo.Gabrielli@arm.com "predicate_test": predicateTest, 607760SGiacomo.Gabrielli@arm.com "op_class": "IntDivOp"}, []) 617318Sgblack@eecs.umich.edu header_output = RegRegRegOpDeclare.subst(sdivIop) 627318Sgblack@eecs.umich.edu decoder_output = RegRegRegOpConstructor.subst(sdivIop) 637318Sgblack@eecs.umich.edu exec_output = PredOpExecute.subst(sdivIop) 647319Sgblack@eecs.umich.edu 657319Sgblack@eecs.umich.edu udivCode = ''' 668588Sgblack@eecs.umich.edu if (Op2_uw == 0) { 677361Sgblack@eecs.umich.edu if (((SCTLR)Sctlr).dz) { 687361Sgblack@eecs.umich.edu#if FULL_SYSTEM 697361Sgblack@eecs.umich.edu return new UndefinedInstruction; 707361Sgblack@eecs.umich.edu#else 717361Sgblack@eecs.umich.edu return new UndefinedInstruction(false, mnemonic); 727361Sgblack@eecs.umich.edu#endif 737361Sgblack@eecs.umich.edu } 748588Sgblack@eecs.umich.edu Dest_uw = 0; 757319Sgblack@eecs.umich.edu } else { 768588Sgblack@eecs.umich.edu Dest_uw = Op1_uw / Op2_uw; 777319Sgblack@eecs.umich.edu } 787319Sgblack@eecs.umich.edu ''' 797319Sgblack@eecs.umich.edu udivIop = InstObjParams("udiv", "Udiv", "RegRegRegOp", 807319Sgblack@eecs.umich.edu { "code": udivCode, 817760SGiacomo.Gabrielli@arm.com "predicate_test": predicateTest, 827760SGiacomo.Gabrielli@arm.com "op_class": "IntDivOp"}, []) 837319Sgblack@eecs.umich.edu header_output += RegRegRegOpDeclare.subst(udivIop) 847319Sgblack@eecs.umich.edu decoder_output += RegRegRegOpConstructor.subst(udivIop) 857319Sgblack@eecs.umich.edu exec_output += PredOpExecute.subst(udivIop) 867318Sgblack@eecs.umich.edu}}; 87