mem.isa revision 7119
17119Sgblack@eecs.umich.edu// -*- mode:c++ -*- 27119Sgblack@eecs.umich.edu 37119Sgblack@eecs.umich.edu// Copyright (c) 2010 ARM Limited 47119Sgblack@eecs.umich.edu// All rights reserved 57119Sgblack@eecs.umich.edu// 67119Sgblack@eecs.umich.edu// The license below extends only to copyright in the software and shall 77119Sgblack@eecs.umich.edu// not be construed as granting a license to any other intellectual 87119Sgblack@eecs.umich.edu// property including but not limited to intellectual property relating 97119Sgblack@eecs.umich.edu// to a hardware implementation of the functionality of the software 107119Sgblack@eecs.umich.edu// licensed hereunder. You may use the software subject to the license 117119Sgblack@eecs.umich.edu// terms below provided that you ensure that this notice is replicated 127119Sgblack@eecs.umich.edu// unmodified and in its entirety in all distributions of the software, 137119Sgblack@eecs.umich.edu// modified or unmodified, in source code or in binary form. 147119Sgblack@eecs.umich.edu// 157119Sgblack@eecs.umich.edu// Redistribution and use in source and binary forms, with or without 167119Sgblack@eecs.umich.edu// modification, are permitted provided that the following conditions are 177119Sgblack@eecs.umich.edu// met: redistributions of source code must retain the above copyright 187119Sgblack@eecs.umich.edu// notice, this list of conditions and the following disclaimer; 197119Sgblack@eecs.umich.edu// redistributions in binary form must reproduce the above copyright 207119Sgblack@eecs.umich.edu// notice, this list of conditions and the following disclaimer in the 217119Sgblack@eecs.umich.edu// documentation and/or other materials provided with the distribution; 227119Sgblack@eecs.umich.edu// neither the name of the copyright holders nor the names of its 237119Sgblack@eecs.umich.edu// contributors may be used to endorse or promote products derived from 247119Sgblack@eecs.umich.edu// this software without specific prior written permission. 257119Sgblack@eecs.umich.edu// 267119Sgblack@eecs.umich.edu// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 277119Sgblack@eecs.umich.edu// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 287119Sgblack@eecs.umich.edu// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 297119Sgblack@eecs.umich.edu// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 307119Sgblack@eecs.umich.edu// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 317119Sgblack@eecs.umich.edu// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 327119Sgblack@eecs.umich.edu// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 337119Sgblack@eecs.umich.edu// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 347119Sgblack@eecs.umich.edu// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 357119Sgblack@eecs.umich.edu// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 367119Sgblack@eecs.umich.edu// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 377119Sgblack@eecs.umich.edu// 387119Sgblack@eecs.umich.edu// Authors: Gabe Black 397119Sgblack@eecs.umich.edu 407119Sgblack@eecs.umich.edulet {{ 417119Sgblack@eecs.umich.edu def newLoadStoreBase(name, Name, imm, eaCode, accCode, memFlags, 427119Sgblack@eecs.umich.edu instFlags, base = 'MemoryNew', execTemplateBase = ''): 437119Sgblack@eecs.umich.edu # Make sure flags are in lists (convert to lists if not). 447119Sgblack@eecs.umich.edu memFlags = makeList(memFlags) 457119Sgblack@eecs.umich.edu instFlags = makeList(instFlags) 467119Sgblack@eecs.umich.edu 477119Sgblack@eecs.umich.edu # This shouldn't be part of the eaCode, but until the exec templates 487119Sgblack@eecs.umich.edu # are converted over it's the easiest place to put it. 497119Sgblack@eecs.umich.edu eaCode += '\n unsigned memAccessFlags = ' 507119Sgblack@eecs.umich.edu if memFlags: 517119Sgblack@eecs.umich.edu eaCode += (string.join(memFlags, '|') + ';') 527119Sgblack@eecs.umich.edu else: 537119Sgblack@eecs.umich.edu eaCode += '0;' 547119Sgblack@eecs.umich.edu 557119Sgblack@eecs.umich.edu predicateTest = 'testPredicate(CondCodes, condCode)' 567119Sgblack@eecs.umich.edu 577119Sgblack@eecs.umich.edu iop = InstObjParams(name, Name, base, 587119Sgblack@eecs.umich.edu {'ea_code': eaCode, 597119Sgblack@eecs.umich.edu 'memacc_code': accCode, 607119Sgblack@eecs.umich.edu 'predicate_test': predicateTest}, 617119Sgblack@eecs.umich.edu instFlags) 627119Sgblack@eecs.umich.edu 637119Sgblack@eecs.umich.edu fullExecTemplate = eval(execTemplateBase + 'Execute') 647119Sgblack@eecs.umich.edu initiateAccTemplate = eval(execTemplateBase + 'InitiateAcc') 657119Sgblack@eecs.umich.edu completeAccTemplate = eval(execTemplateBase + 'CompleteAcc') 667119Sgblack@eecs.umich.edu 677119Sgblack@eecs.umich.edu if imm: 687119Sgblack@eecs.umich.edu declareTemplate = LoadStoreImmDeclare 697119Sgblack@eecs.umich.edu constructTemplate = LoadStoreImmConstructor 707119Sgblack@eecs.umich.edu else: 717119Sgblack@eecs.umich.edu declareTemplate = LoadStoreRegDeclare 727119Sgblack@eecs.umich.edu constructTemplate = LoadStoreRegConstructor 737119Sgblack@eecs.umich.edu 747119Sgblack@eecs.umich.edu # (header_output, decoder_output, decode_block, exec_output) 757119Sgblack@eecs.umich.edu return (declareTemplate.subst(iop), 767119Sgblack@eecs.umich.edu constructTemplate.subst(iop), 777119Sgblack@eecs.umich.edu fullExecTemplate.subst(iop) 787119Sgblack@eecs.umich.edu + initiateAccTemplate.subst(iop) 797119Sgblack@eecs.umich.edu + completeAccTemplate.subst(iop)) 807119Sgblack@eecs.umich.edu 817119Sgblack@eecs.umich.edu def memClassName(base, post, add, writeback, \ 827119Sgblack@eecs.umich.edu size=4, sign=False, user=False): 837119Sgblack@eecs.umich.edu Name = base 847119Sgblack@eecs.umich.edu 857119Sgblack@eecs.umich.edu if post: 867119Sgblack@eecs.umich.edu Name += '_PY' 877119Sgblack@eecs.umich.edu else: 887119Sgblack@eecs.umich.edu Name += '_PN' 897119Sgblack@eecs.umich.edu 907119Sgblack@eecs.umich.edu if add: 917119Sgblack@eecs.umich.edu Name += '_AY' 927119Sgblack@eecs.umich.edu else: 937119Sgblack@eecs.umich.edu Name += '_AN' 947119Sgblack@eecs.umich.edu 957119Sgblack@eecs.umich.edu if writeback: 967119Sgblack@eecs.umich.edu Name += '_WY' 977119Sgblack@eecs.umich.edu else: 987119Sgblack@eecs.umich.edu Name += '_WN' 997119Sgblack@eecs.umich.edu 1007119Sgblack@eecs.umich.edu Name += ('_SZ%d' % size) 1017119Sgblack@eecs.umich.edu 1027119Sgblack@eecs.umich.edu if sign: 1037119Sgblack@eecs.umich.edu Name += '_SY' 1047119Sgblack@eecs.umich.edu else: 1057119Sgblack@eecs.umich.edu Name += '_SN' 1067119Sgblack@eecs.umich.edu 1077119Sgblack@eecs.umich.edu if user: 1087119Sgblack@eecs.umich.edu Name += '_UY' 1097119Sgblack@eecs.umich.edu else: 1107119Sgblack@eecs.umich.edu Name += '_UN' 1117119Sgblack@eecs.umich.edu 1127119Sgblack@eecs.umich.edu return Name 1137119Sgblack@eecs.umich.edu 1147119Sgblack@eecs.umich.edu def buildMemSuffix(sign, size): 1157119Sgblack@eecs.umich.edu if size == 4: 1167119Sgblack@eecs.umich.edu memSuffix = '' 1177119Sgblack@eecs.umich.edu elif size == 2: 1187119Sgblack@eecs.umich.edu if sign: 1197119Sgblack@eecs.umich.edu memSuffix = '.sh' 1207119Sgblack@eecs.umich.edu else: 1217119Sgblack@eecs.umich.edu memSuffix = '.uh' 1227119Sgblack@eecs.umich.edu elif size == 1: 1237119Sgblack@eecs.umich.edu if sign: 1247119Sgblack@eecs.umich.edu memSuffix = '.sb' 1257119Sgblack@eecs.umich.edu else: 1267119Sgblack@eecs.umich.edu memSuffix = '.ub' 1277119Sgblack@eecs.umich.edu else: 1287119Sgblack@eecs.umich.edu raise Exception, "Unrecognized size for load %d" % size 1297119Sgblack@eecs.umich.edu 1307119Sgblack@eecs.umich.edu return memSuffix 1317119Sgblack@eecs.umich.edu 1327119Sgblack@eecs.umich.edu def buildMemBase(base, post, writeback): 1337119Sgblack@eecs.umich.edu if post and writeback: 1347119Sgblack@eecs.umich.edu base = "MemoryNewPostIndex<%s>" % base 1357119Sgblack@eecs.umich.edu elif not post and writeback: 1367119Sgblack@eecs.umich.edu base = "MemoryNewPreIndex<%s>" % base 1377119Sgblack@eecs.umich.edu elif not post and not writeback: 1387119Sgblack@eecs.umich.edu base = "MemoryNewOffset<%s>" % base 1397119Sgblack@eecs.umich.edu else: 1407119Sgblack@eecs.umich.edu raise Exception, "Illegal combination of post and writeback" 1417119Sgblack@eecs.umich.edu return base 1427119Sgblack@eecs.umich.edu}}; 1437119Sgblack@eecs.umich.edu 144