ldr.isa revision 7192
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 427119Sgblack@eecs.umich.edu header_output = "" 437119Sgblack@eecs.umich.edu decoder_output = "" 447119Sgblack@eecs.umich.edu exec_output = "" 457119Sgblack@eecs.umich.edu 467119Sgblack@eecs.umich.edu def loadImmClassName(post, add, writeback, \ 477119Sgblack@eecs.umich.edu size=4, sign=False, user=False): 487119Sgblack@eecs.umich.edu return memClassName("LOAD_IMM", post, add, writeback, 497119Sgblack@eecs.umich.edu size, sign, user) 507119Sgblack@eecs.umich.edu 517119Sgblack@eecs.umich.edu def loadRegClassName(post, add, writeback, \ 527119Sgblack@eecs.umich.edu size=4, sign=False, user=False): 537119Sgblack@eecs.umich.edu return memClassName("LOAD_REG", post, add, writeback, 547119Sgblack@eecs.umich.edu size, sign, user) 557119Sgblack@eecs.umich.edu 567128Sgblack@eecs.umich.edu def loadDoubleImmClassName(post, add, writeback): 577128Sgblack@eecs.umich.edu return memClassName("LOAD_IMMD", post, add, writeback, 4, False, False) 587128Sgblack@eecs.umich.edu 597128Sgblack@eecs.umich.edu def loadDoubleRegClassName(post, add, writeback): 607128Sgblack@eecs.umich.edu return memClassName("LOAD_REGD", post, add, writeback, 4, False, False) 617128Sgblack@eecs.umich.edu 627119Sgblack@eecs.umich.edu def emitLoad(name, Name, imm, eaCode, accCode, memFlags, instFlags, base): 637119Sgblack@eecs.umich.edu global header_output, decoder_output, exec_output 647119Sgblack@eecs.umich.edu 657119Sgblack@eecs.umich.edu (newHeader, 667119Sgblack@eecs.umich.edu newDecoder, 677132Sgblack@eecs.umich.edu newExec) = loadStoreBase(name, Name, imm, 687132Sgblack@eecs.umich.edu eaCode, accCode, 697132Sgblack@eecs.umich.edu memFlags, instFlags, 707132Sgblack@eecs.umich.edu base, execTemplateBase = 'Load') 717119Sgblack@eecs.umich.edu 727119Sgblack@eecs.umich.edu header_output += newHeader 737119Sgblack@eecs.umich.edu decoder_output += newDecoder 747119Sgblack@eecs.umich.edu exec_output += newExec 757119Sgblack@eecs.umich.edu 767119Sgblack@eecs.umich.edu def buildImmLoad(mnem, post, add, writeback, \ 777192Sgblack@eecs.umich.edu size=4, sign=False, user=False, prefetch=False): 787119Sgblack@eecs.umich.edu name = mnem 797119Sgblack@eecs.umich.edu Name = loadImmClassName(post, add, writeback, \ 807119Sgblack@eecs.umich.edu size, sign, user) 817119Sgblack@eecs.umich.edu 827119Sgblack@eecs.umich.edu if add: 837119Sgblack@eecs.umich.edu op = " +" 847119Sgblack@eecs.umich.edu else: 857119Sgblack@eecs.umich.edu op = " -" 867119Sgblack@eecs.umich.edu 877119Sgblack@eecs.umich.edu offset = op + " imm" 887119Sgblack@eecs.umich.edu eaCode = "EA = Base" 897119Sgblack@eecs.umich.edu if not post: 907119Sgblack@eecs.umich.edu eaCode += offset 917119Sgblack@eecs.umich.edu eaCode += ";" 927119Sgblack@eecs.umich.edu 937192Sgblack@eecs.umich.edu if prefetch: 947192Sgblack@eecs.umich.edu Name = "%s_%s" % (mnem.upper(), Name) 957192Sgblack@eecs.umich.edu memFlags = ["Request::PREFETCH"] 967192Sgblack@eecs.umich.edu accCode = ''' 977192Sgblack@eecs.umich.edu uint64_t temp = Mem%s;\n 987192Sgblack@eecs.umich.edu temp = temp; 997192Sgblack@eecs.umich.edu ''' % buildMemSuffix(sign, size) 1007192Sgblack@eecs.umich.edu else: 1017192Sgblack@eecs.umich.edu memFlags = [] 1027192Sgblack@eecs.umich.edu accCode = "IWDest = Mem%s;\n" % buildMemSuffix(sign, size) 1037119Sgblack@eecs.umich.edu if writeback: 1047119Sgblack@eecs.umich.edu accCode += "Base = Base %s;\n" % offset 1057132Sgblack@eecs.umich.edu base = buildMemBase("MemoryImm", post, writeback) 1067119Sgblack@eecs.umich.edu 1077192Sgblack@eecs.umich.edu emitLoad(name, Name, True, eaCode, accCode, memFlags, [], base) 1087119Sgblack@eecs.umich.edu 1097119Sgblack@eecs.umich.edu def buildRegLoad(mnem, post, add, writeback, \ 1107192Sgblack@eecs.umich.edu size=4, sign=False, user=False, prefetch=False): 1117119Sgblack@eecs.umich.edu name = mnem 1127119Sgblack@eecs.umich.edu Name = loadRegClassName(post, add, writeback, 1137119Sgblack@eecs.umich.edu size, sign, user) 1147119Sgblack@eecs.umich.edu 1157119Sgblack@eecs.umich.edu if add: 1167119Sgblack@eecs.umich.edu op = " +" 1177119Sgblack@eecs.umich.edu else: 1187119Sgblack@eecs.umich.edu op = " -" 1197119Sgblack@eecs.umich.edu 1207119Sgblack@eecs.umich.edu offset = op + " shift_rm_imm(Index, shiftAmt," + \ 1217119Sgblack@eecs.umich.edu " shiftType, CondCodes<29:>)" 1227119Sgblack@eecs.umich.edu eaCode = "EA = Base" 1237119Sgblack@eecs.umich.edu if not post: 1247119Sgblack@eecs.umich.edu eaCode += offset 1257119Sgblack@eecs.umich.edu eaCode += ";" 1267119Sgblack@eecs.umich.edu 1277192Sgblack@eecs.umich.edu if prefetch: 1287192Sgblack@eecs.umich.edu Name = "%s_%s" % (mnem.upper(), Name) 1297192Sgblack@eecs.umich.edu memFlags = ["Request::PREFETCH"] 1307192Sgblack@eecs.umich.edu accCode = ''' 1317192Sgblack@eecs.umich.edu uint64_t temp = Mem%s;\n 1327192Sgblack@eecs.umich.edu temp = temp; 1337192Sgblack@eecs.umich.edu ''' % buildMemSuffix(sign, size) 1347192Sgblack@eecs.umich.edu else: 1357192Sgblack@eecs.umich.edu memFlags = [] 1367192Sgblack@eecs.umich.edu accCode = "IWDest = Mem%s;\n" % buildMemSuffix(sign, size) 1377119Sgblack@eecs.umich.edu if writeback: 1387119Sgblack@eecs.umich.edu accCode += "Base = Base %s;\n" % offset 1397132Sgblack@eecs.umich.edu base = buildMemBase("MemoryReg", post, writeback) 1407119Sgblack@eecs.umich.edu 1417192Sgblack@eecs.umich.edu emitLoad(name, Name, False, eaCode, accCode, memFlags, [], base) 1427119Sgblack@eecs.umich.edu 1437128Sgblack@eecs.umich.edu def buildDoubleImmLoad(mnem, post, add, writeback): 1447128Sgblack@eecs.umich.edu name = mnem 1457128Sgblack@eecs.umich.edu Name = loadDoubleImmClassName(post, add, writeback) 1467128Sgblack@eecs.umich.edu 1477128Sgblack@eecs.umich.edu if add: 1487128Sgblack@eecs.umich.edu op = " +" 1497128Sgblack@eecs.umich.edu else: 1507128Sgblack@eecs.umich.edu op = " -" 1517128Sgblack@eecs.umich.edu 1527128Sgblack@eecs.umich.edu offset = op + " imm" 1537128Sgblack@eecs.umich.edu eaCode = "EA = Base" 1547128Sgblack@eecs.umich.edu if not post: 1557128Sgblack@eecs.umich.edu eaCode += offset 1567128Sgblack@eecs.umich.edu eaCode += ";" 1577128Sgblack@eecs.umich.edu 1587128Sgblack@eecs.umich.edu accCode = ''' 1597128Sgblack@eecs.umich.edu Rdo = bits(Mem.ud, 31, 0); 1607128Sgblack@eecs.umich.edu Rde = bits(Mem.ud, 63, 32); 1617128Sgblack@eecs.umich.edu ''' 1627128Sgblack@eecs.umich.edu if writeback: 1637128Sgblack@eecs.umich.edu accCode += "Base = Base %s;\n" % offset 1647132Sgblack@eecs.umich.edu base = buildMemBase("MemoryImm", post, writeback) 1657128Sgblack@eecs.umich.edu 1667128Sgblack@eecs.umich.edu emitLoad(name, Name, True, eaCode, accCode, [], [], base) 1677128Sgblack@eecs.umich.edu 1687128Sgblack@eecs.umich.edu def buildDoubleRegLoad(mnem, post, add, writeback): 1697128Sgblack@eecs.umich.edu name = mnem 1707128Sgblack@eecs.umich.edu Name = loadDoubleRegClassName(post, add, writeback) 1717128Sgblack@eecs.umich.edu 1727128Sgblack@eecs.umich.edu if add: 1737128Sgblack@eecs.umich.edu op = " +" 1747128Sgblack@eecs.umich.edu else: 1757128Sgblack@eecs.umich.edu op = " -" 1767128Sgblack@eecs.umich.edu 1777128Sgblack@eecs.umich.edu offset = op + " shift_rm_imm(Index, shiftAmt," + \ 1787128Sgblack@eecs.umich.edu " shiftType, CondCodes<29:>)" 1797128Sgblack@eecs.umich.edu eaCode = "EA = Base" 1807128Sgblack@eecs.umich.edu if not post: 1817128Sgblack@eecs.umich.edu eaCode += offset 1827128Sgblack@eecs.umich.edu eaCode += ";" 1837128Sgblack@eecs.umich.edu 1847128Sgblack@eecs.umich.edu accCode = ''' 1857128Sgblack@eecs.umich.edu Rdo = bits(Mem.ud, 31, 0); 1867128Sgblack@eecs.umich.edu Rde = bits(Mem.ud, 63, 32); 1877128Sgblack@eecs.umich.edu ''' 1887128Sgblack@eecs.umich.edu if writeback: 1897128Sgblack@eecs.umich.edu accCode += "Base = Base %s;\n" % offset 1907132Sgblack@eecs.umich.edu base = buildMemBase("MemoryReg", post, writeback) 1917128Sgblack@eecs.umich.edu 1927128Sgblack@eecs.umich.edu emitLoad(name, Name, False, eaCode, accCode, [], [], base) 1937128Sgblack@eecs.umich.edu 1947119Sgblack@eecs.umich.edu def buildLoads(mnem, size=4, sign=False, user=False): 1957119Sgblack@eecs.umich.edu buildImmLoad(mnem, True, True, True, size, sign, user) 1967119Sgblack@eecs.umich.edu buildRegLoad(mnem, True, True, True, size, sign, user) 1977119Sgblack@eecs.umich.edu buildImmLoad(mnem, True, False, True, size, sign, user) 1987119Sgblack@eecs.umich.edu buildRegLoad(mnem, True, False, True, size, sign, user) 1997119Sgblack@eecs.umich.edu buildImmLoad(mnem, False, True, True, size, sign, user) 2007119Sgblack@eecs.umich.edu buildRegLoad(mnem, False, True, True, size, sign, user) 2017119Sgblack@eecs.umich.edu buildImmLoad(mnem, False, False, True, size, sign, user) 2027119Sgblack@eecs.umich.edu buildRegLoad(mnem, False, False, True, size, sign, user) 2037119Sgblack@eecs.umich.edu buildImmLoad(mnem, False, True, False, size, sign, user) 2047119Sgblack@eecs.umich.edu buildRegLoad(mnem, False, True, False, size, sign, user) 2057119Sgblack@eecs.umich.edu buildImmLoad(mnem, False, False, False, size, sign, user) 2067119Sgblack@eecs.umich.edu buildRegLoad(mnem, False, False, False, size, sign, user) 2077119Sgblack@eecs.umich.edu 2087128Sgblack@eecs.umich.edu def buildDoubleLoads(mnem): 2097128Sgblack@eecs.umich.edu buildDoubleImmLoad(mnem, True, True, True) 2107128Sgblack@eecs.umich.edu buildDoubleRegLoad(mnem, True, True, True) 2117128Sgblack@eecs.umich.edu buildDoubleImmLoad(mnem, True, False, True) 2127128Sgblack@eecs.umich.edu buildDoubleRegLoad(mnem, True, False, True) 2137128Sgblack@eecs.umich.edu buildDoubleImmLoad(mnem, False, True, True) 2147128Sgblack@eecs.umich.edu buildDoubleRegLoad(mnem, False, True, True) 2157128Sgblack@eecs.umich.edu buildDoubleImmLoad(mnem, False, False, True) 2167128Sgblack@eecs.umich.edu buildDoubleRegLoad(mnem, False, False, True) 2177128Sgblack@eecs.umich.edu buildDoubleImmLoad(mnem, False, True, False) 2187128Sgblack@eecs.umich.edu buildDoubleRegLoad(mnem, False, True, False) 2197128Sgblack@eecs.umich.edu buildDoubleImmLoad(mnem, False, False, False) 2207128Sgblack@eecs.umich.edu buildDoubleRegLoad(mnem, False, False, False) 2217128Sgblack@eecs.umich.edu 2227192Sgblack@eecs.umich.edu def buildPrefetches(mnem): 2237192Sgblack@eecs.umich.edu buildRegLoad(mnem, False, False, False, size=1, prefetch=True) 2247192Sgblack@eecs.umich.edu buildImmLoad(mnem, False, False, False, size=1, prefetch=True) 2257192Sgblack@eecs.umich.edu buildRegLoad(mnem, False, True, False, size=1, prefetch=True) 2267192Sgblack@eecs.umich.edu buildImmLoad(mnem, False, True, False, size=1, prefetch=True) 2277192Sgblack@eecs.umich.edu 2287119Sgblack@eecs.umich.edu buildLoads("ldr") 2297119Sgblack@eecs.umich.edu buildLoads("ldrt", user=True) 2307119Sgblack@eecs.umich.edu buildLoads("ldrb", size=1) 2317119Sgblack@eecs.umich.edu buildLoads("ldrbt", size=1, user=True) 2327119Sgblack@eecs.umich.edu buildLoads("ldrsb", size=1, sign=True) 2337119Sgblack@eecs.umich.edu buildLoads("ldrsbt", size=1, sign=True, user=True) 2347119Sgblack@eecs.umich.edu buildLoads("ldrh", size=2) 2357119Sgblack@eecs.umich.edu buildLoads("ldrht", size=2, user=True) 2367119Sgblack@eecs.umich.edu buildLoads("hdrsh", size=2, sign=True) 2377119Sgblack@eecs.umich.edu buildLoads("ldrsht", size=2, sign=True, user=True) 2387128Sgblack@eecs.umich.edu 2397128Sgblack@eecs.umich.edu buildDoubleLoads("ldrd") 2407192Sgblack@eecs.umich.edu 2417192Sgblack@eecs.umich.edu buildPrefetches("pld") 2427192Sgblack@eecs.umich.edu buildPrefetches("pldw") 2437192Sgblack@eecs.umich.edu buildPrefetches("pli") 2447119Sgblack@eecs.umich.edu}}; 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