mem.isa revision 7205
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 {{ 417205Sgblack@eecs.umich.edu def loadStoreBaseWork(name, Name, imm, swp, codeBlobs, memFlags, 427205Sgblack@eecs.umich.edu instFlags, base = 'Memory', 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 477205Sgblack@eecs.umich.edu eaCode = codeBlobs["ea_code"] 487205Sgblack@eecs.umich.edu 497119Sgblack@eecs.umich.edu # This shouldn't be part of the eaCode, but until the exec templates 507119Sgblack@eecs.umich.edu # are converted over it's the easiest place to put it. 517119Sgblack@eecs.umich.edu eaCode += '\n unsigned memAccessFlags = ' 527119Sgblack@eecs.umich.edu if memFlags: 537119Sgblack@eecs.umich.edu eaCode += (string.join(memFlags, '|') + ';') 547119Sgblack@eecs.umich.edu else: 557119Sgblack@eecs.umich.edu eaCode += '0;' 567119Sgblack@eecs.umich.edu 577205Sgblack@eecs.umich.edu codeBlobs["ea_code"] = eaCode 587205Sgblack@eecs.umich.edu 597205Sgblack@eecs.umich.edu iop = InstObjParams(name, Name, base, codeBlobs, instFlags) 607119Sgblack@eecs.umich.edu 617119Sgblack@eecs.umich.edu fullExecTemplate = eval(execTemplateBase + 'Execute') 627119Sgblack@eecs.umich.edu initiateAccTemplate = eval(execTemplateBase + 'InitiateAcc') 637119Sgblack@eecs.umich.edu completeAccTemplate = eval(execTemplateBase + 'CompleteAcc') 647119Sgblack@eecs.umich.edu 657205Sgblack@eecs.umich.edu if swp: 667205Sgblack@eecs.umich.edu declareTemplate = SwapDeclare 677205Sgblack@eecs.umich.edu constructTemplate = SwapConstructor 687205Sgblack@eecs.umich.edu elif imm: 697119Sgblack@eecs.umich.edu declareTemplate = LoadStoreImmDeclare 707119Sgblack@eecs.umich.edu constructTemplate = LoadStoreImmConstructor 717119Sgblack@eecs.umich.edu else: 727119Sgblack@eecs.umich.edu declareTemplate = LoadStoreRegDeclare 737119Sgblack@eecs.umich.edu constructTemplate = LoadStoreRegConstructor 747119Sgblack@eecs.umich.edu 757119Sgblack@eecs.umich.edu # (header_output, decoder_output, decode_block, exec_output) 767119Sgblack@eecs.umich.edu return (declareTemplate.subst(iop), 777119Sgblack@eecs.umich.edu constructTemplate.subst(iop), 787119Sgblack@eecs.umich.edu fullExecTemplate.subst(iop) 797119Sgblack@eecs.umich.edu + initiateAccTemplate.subst(iop) 807119Sgblack@eecs.umich.edu + completeAccTemplate.subst(iop)) 817119Sgblack@eecs.umich.edu 827205Sgblack@eecs.umich.edu def loadStoreBase(name, Name, imm, eaCode, accCode, memFlags, 837205Sgblack@eecs.umich.edu instFlags, base = 'Memory', execTemplateBase = ''): 847205Sgblack@eecs.umich.edu codeBlobs = { "ea_code": eaCode, 857205Sgblack@eecs.umich.edu "memacc_code": accCode, 867205Sgblack@eecs.umich.edu "predicate_test": predicateTest } 877205Sgblack@eecs.umich.edu return loadStoreBaseWork(name, Name, imm, False, codeBlobs, memFlags, 887205Sgblack@eecs.umich.edu instFlags, base, execTemplateBase) 897205Sgblack@eecs.umich.edu 907205Sgblack@eecs.umich.edu def SwapBase(name, Name, eaCode, preAccCode, postAccCode, memFlags, 917205Sgblack@eecs.umich.edu instFlags): 927205Sgblack@eecs.umich.edu codeBlobs = { "ea_code": eaCode, 937205Sgblack@eecs.umich.edu "preacc_code": preAccCode, 947205Sgblack@eecs.umich.edu "postacc_code": postAccCode, 957205Sgblack@eecs.umich.edu "predicate_test": predicateTest } 967205Sgblack@eecs.umich.edu return loadStoreBaseWork(name, Name, False, True, codeBlobs, memFlags, 977205Sgblack@eecs.umich.edu instFlags, 'Swap', 'Swap') 987205Sgblack@eecs.umich.edu 997119Sgblack@eecs.umich.edu def memClassName(base, post, add, writeback, \ 1007119Sgblack@eecs.umich.edu size=4, sign=False, user=False): 1017119Sgblack@eecs.umich.edu Name = base 1027119Sgblack@eecs.umich.edu 1037119Sgblack@eecs.umich.edu if post: 1047119Sgblack@eecs.umich.edu Name += '_PY' 1057119Sgblack@eecs.umich.edu else: 1067119Sgblack@eecs.umich.edu Name += '_PN' 1077119Sgblack@eecs.umich.edu 1087119Sgblack@eecs.umich.edu if add: 1097119Sgblack@eecs.umich.edu Name += '_AY' 1107119Sgblack@eecs.umich.edu else: 1117119Sgblack@eecs.umich.edu Name += '_AN' 1127119Sgblack@eecs.umich.edu 1137119Sgblack@eecs.umich.edu if writeback: 1147119Sgblack@eecs.umich.edu Name += '_WY' 1157119Sgblack@eecs.umich.edu else: 1167119Sgblack@eecs.umich.edu Name += '_WN' 1177119Sgblack@eecs.umich.edu 1187119Sgblack@eecs.umich.edu Name += ('_SZ%d' % size) 1197119Sgblack@eecs.umich.edu 1207119Sgblack@eecs.umich.edu if sign: 1217119Sgblack@eecs.umich.edu Name += '_SY' 1227119Sgblack@eecs.umich.edu else: 1237119Sgblack@eecs.umich.edu Name += '_SN' 1247119Sgblack@eecs.umich.edu 1257119Sgblack@eecs.umich.edu if user: 1267119Sgblack@eecs.umich.edu Name += '_UY' 1277119Sgblack@eecs.umich.edu else: 1287119Sgblack@eecs.umich.edu Name += '_UN' 1297119Sgblack@eecs.umich.edu 1307119Sgblack@eecs.umich.edu return Name 1317119Sgblack@eecs.umich.edu 1327119Sgblack@eecs.umich.edu def buildMemSuffix(sign, size): 1337119Sgblack@eecs.umich.edu if size == 4: 1347119Sgblack@eecs.umich.edu memSuffix = '' 1357119Sgblack@eecs.umich.edu elif size == 2: 1367119Sgblack@eecs.umich.edu if sign: 1377119Sgblack@eecs.umich.edu memSuffix = '.sh' 1387119Sgblack@eecs.umich.edu else: 1397119Sgblack@eecs.umich.edu memSuffix = '.uh' 1407119Sgblack@eecs.umich.edu elif size == 1: 1417119Sgblack@eecs.umich.edu if sign: 1427119Sgblack@eecs.umich.edu memSuffix = '.sb' 1437119Sgblack@eecs.umich.edu else: 1447119Sgblack@eecs.umich.edu memSuffix = '.ub' 1457119Sgblack@eecs.umich.edu else: 1467119Sgblack@eecs.umich.edu raise Exception, "Unrecognized size for load %d" % size 1477119Sgblack@eecs.umich.edu 1487119Sgblack@eecs.umich.edu return memSuffix 1497119Sgblack@eecs.umich.edu 1507119Sgblack@eecs.umich.edu def buildMemBase(base, post, writeback): 1517119Sgblack@eecs.umich.edu if post and writeback: 1527132Sgblack@eecs.umich.edu base = "MemoryPostIndex<%s>" % base 1537119Sgblack@eecs.umich.edu elif not post and writeback: 1547132Sgblack@eecs.umich.edu base = "MemoryPreIndex<%s>" % base 1557119Sgblack@eecs.umich.edu elif not post and not writeback: 1567132Sgblack@eecs.umich.edu base = "MemoryOffset<%s>" % base 1577119Sgblack@eecs.umich.edu else: 1587119Sgblack@eecs.umich.edu raise Exception, "Illegal combination of post and writeback" 1597119Sgblack@eecs.umich.edu return base 1607119Sgblack@eecs.umich.edu}}; 1617119Sgblack@eecs.umich.edu 162