#!/usr/bin/python3.0 # Copyright 2008, SoftPLC Corporation http://softplc.com # Dick Hollenbeck dick@softplc.com # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version 2 # of the License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, you may find one here: # http://www.gnu.org/licenses/old-licenses/gpl-2.0.html # or you may search the http://www.gnu.org website for the version 2 license, # or you may write to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA # A python program to convert an SVF file to an XSVF file. There is an # option to include comments containing the source file line number from the origin # SVF file before each outputted XSVF statement. # # We deviate from the XSVF spec in that we introduce a new command called # XWAITSTATE which directly flows from the SVF RUNTEST command. Unfortunately # XRUNSTATE was ill conceived and is not used here. We also add support for the # three Lattice extensions to SVF: LCOUNT, LDELAY, and LSDR. The xsvf file # generated from this program is suitable for use with the xsvf player in # OpenOCD with my modifications to xsvf.c. # # This program is written for python 3.0, and it is not easy to change this # back to 2.x. You may find it easier to use python 3.x even if that means # building it. import re import sys import struct # There are both ------ and ------ sections to this program if len( sys.argv ) < 3: print("usage %s " % sys.argv[0]) exit(1) inputFilename = sys.argv[1] outputFilename = sys.argv[2] doCOMMENTs = True # Save XCOMMENTs in the output xsvf file #doCOMMENTs = False # Save XCOMMENTs in the output xsvf file # pick your file encoding file_encoding = 'ISO-8859-1' #file_encoding = 'utf-8' xrepeat = 0 # argument to XREPEAT, gives retry count for masked compares #-----< Lexer >--------------------------------------------------------------- StateBin = (RESET,IDLE, DRSELECT,DRCAPTURE,DRSHIFT,DREXIT1,DRPAUSE,DREXIT2,DRUPDATE, IRSELECT,IRCAPTURE,IRSHIFT,IREXIT1,IRPAUSE,IREXIT2,IRUPDATE) = range(16) # Any integer index into this tuple will be equal to its corresponding StateBin value StateTxt = ("RESET","IDLE", "DRSELECT","DRCAPTURE","DRSHIFT","DREXIT1","DRPAUSE","DREXIT2","DRUPDATE", "IRSELECT","IRCAPTURE","IRSHIFT","IREXIT1","IRPAUSE","IREXIT2","IRUPDATE") (XCOMPLETE,XTDOMASK,XSIR,XSDR,XRUNTEST,hole0,hole1,XREPEAT,XSDRSIZE,XSDRTDO, XSETSDRMASKS,XSDRINC,XSDRB,XSDRC,XSDRE,XSDRTDOB,XSDRTDOC, XSDRTDOE,XSTATE,XENDIR,XENDDR,XSIR2,XCOMMENT,XWAIT,XWAITSTATE, LCOUNT,LDELAY,LSDR,XTRST) = range(29) #Note: LCOUNT, LDELAY, and LSDR are Lattice extensions to SVF and provide a way to loop back # and check a completion status, essentially waiting on a part until it signals that it is done. # For example below: loop 25 times, each time through the loop do a LDELAY (same as a true RUNTEST) # and exit loop when LSDR compares match. """ LCOUNT 25; ! Step to DRPAUSE give 5 clocks and wait for 1.00e+000 SEC. LDELAY DRPAUSE 5 TCK 1.00E-003 SEC; ! Test for the completed status. Match means pass. ! Loop back to LDELAY line if not match and loop count less than 25. LSDR 1 TDI (0) TDO (1); """ #XTRST is an opcode Xilinx seemed to have missed and it comes from the SVF TRST statement. LineNumber = 1 def s_ident(scanner, token): return ("ident", token.upper(), LineNumber) def s_hex(scanner, token): global LineNumber LineNumber = LineNumber + token.count('\n') token = ''.join(token.split()) return ("hex", token[1:-1], LineNumber) def s_int(scanner, token): return ("int", int(token), LineNumber) def s_float(scanner, token): return ("float", float(token), LineNumber) #def s_comment(scanner, token): return ("comment", token, LineNumber) def s_semicolon(scanner, token): return ("semi", token, LineNumber) def s_nl(scanner,token): global LineNumber LineNumber = LineNumber + 1 #print( 'LineNumber=', LineNumber, file=sys.stderr ) return None #2.00E-002 scanner = re.Scanner([ (r"[a-zA-Z]\w*", s_ident), # (r"[-+]?[0-9]+[.]?[0-9]*([eE][-+]?[0-9]+)?", s_float), (r"[-+]?[0-9]+(([.][0-9eE+-]*)|([eE]+[-+]?[0-9]+))", s_float), (r"\d+", s_int), (r"\(([0-9a-fA-F]|\s)*\)", s_hex), (r"(!|//).*$", None), (r";", s_semicolon), (r"\n",s_nl), (r"\s*", None), ], re.MULTILINE ) # open the file using the given encoding file = open( sys.argv[1], encoding=file_encoding ) # read all svf file input into string "input" input = file.read() file.close() # Lexer: # create a list of tuples containing (tokenType, tokenValue, LineNumber) tokens = scanner.scan( input )[0] input = None # allow gc to reclaim memory holding file #for tokenType, tokenValue, ln in tokens: print( "line %d: %s" % (ln, tokenType), tokenValue ) #---------------------------------------------------------------------- tokVal = tokType = tokLn = None tup = iter( tokens ) def nextTok(): """ Function to read the next token from tup into tokType, tokVal, tokLn (linenumber) which are globals. """ global tokType, tokVal, tokLn, tup tokType, tokVal, tokLn = tup.__next__() class ParseError(Exception): """A class to hold a parsing error message""" def __init__(self, linenumber, token, message): self.linenumber = linenumber self.token = token self.message = message def __str__(self): global inputFilename return "Error in file \'%s\' at line %d near token %s\n %s" % ( inputFilename, self.linenumber, repr(self.token), self.message) class MASKSET(object): """ Class MASKSET holds a set of bit vectors, all of which are related, will all have the same length, and are associated with one of the seven shiftOps: HIR, HDR, TIR, TDR, SIR, SDR, LSDR. One of these holds a mask, smask, tdi, tdo, and a size. """ def __init__(self, name): self.empty() self.name = name def empty(self): self.mask = bytearray() self.smask = bytearray() self.tdi = bytearray() self.tdo = bytearray() self.size = 0 def syncLengths( self, sawTDI, sawTDO, sawMASK, sawSMASK, newSize ): """ Set all the lengths equal in the event some of the masks were not seen as part of the last change set. """ if self.size == newSize: return if newSize == 0: self.empty() return # If an SIR was given without a MASK(), then use a mask of all zeros. # this is not consistent with the SVF spec, but it makes sense because # it would be odd to be testing an instruction register read out of a # tap without giving a mask for it. Also, lattice seems to agree and is # generating SVF files that comply with this philosophy. if self.name == 'SIR' and not sawMASK: self.mask = bytearray( newSize ) if newSize != len(self.mask): self.mask = bytearray( newSize ) if self.name == 'SDR': # leave mask for HIR,HDR,TIR,TDR,SIR zeros for i in range( newSize ): self.mask[i] = 1 if newSize != len(self.tdo): self.tdo = bytearray( newSize ) if newSize != len(self.tdi): self.tdi = bytearray( newSize ) if newSize != len(self.smask): self.smask = bytearray( newSize ) self.size = newSize #---------- def makeBitArray( hexString, bitCount ): """ Converts a packed sequence of hex ascii characters into a bytearray where each element in the array holds exactly one bit. Only "bitCount" bits are scanned and these must be the least significant bits in the hex number. That is, it is legal to have some unused bits in the must significant hex nibble of the input "hexString". The string is scanned starting from the backend, then just before returning we reverse the array. This way the append() method can be used, which I assume is faster than an insert. """ global tokLn a = bytearray() length = bitCount hexString = list(hexString) hexString.reverse() #print(hexString) for c in hexString: if length <= 0: break; c = int(c, 16) for mask in [1,2,4,8]: if length <= 0: break; length = length - 1 a.append( (c & mask) != 0 ) if length > 0: raise ParseError( tokLn, hexString, "Insufficient hex characters for given length of %d" % bitCount ) a.reverse() #print(a) return a def makeXSVFbytes( bitarray ): """ Make a bytearray which is contains the XSVF bits which will be written directly to disk. The number of bytes needed is calculated from the size of the argument bitarray. """ bitCount = len(bitarray) byteCount = (bitCount+7)//8 ba = bytearray( byteCount ) firstBit = (bitCount % 8) - 1 if firstBit == -1: firstBit = 7 bitNdx = 0 for byteNdx in range(byteCount): mask = 1<> 1 bitNdx = bitNdx + 1 ba[byteNdx] = byte firstBit = 7 return ba def writeComment( outputFile, shiftOp_linenum, shiftOp ): """ Write an XCOMMENT record to outputFile """ comment = "%s @%d\0" % (shiftOp, shiftOp_linenum) # \0 is terminating nul ba = bytearray(1) ba[0] = XCOMMENT ba += comment.encode() outputFile.write( ba ) def combineBitVectors( trailer, meat, header ): """ Combine the 3 bit vectors comprizing a transmission. Since the least significant bits are sent first, the header is put onto the list last so they are sent first from that least significant position. """ ret = bytearray() ret.extend( trailer ) ret.extend( meat ) ret.extend( header ) return ret def writeRUNTEST( outputFile, run_state, end_state, run_count, min_time, tokenTxt ): """ Write the output for the SVF RUNTEST command. run_count - the number of clocks min_time - the number of seconds tokenTxt - either RUNTEST or LDELAY """ # convert from secs to usecs min_time = int( min_time * 1000000) # the SVF RUNTEST command does NOT map to the XSVF XRUNTEST command. Check the SVF spec, then # read the XSVF command. They are not the same. Use an XSVF XWAITSTATE to # implement the required behavior of the SVF RUNTEST command. if doCOMMENTs: writeComment( output, tokLn, tokenTxt ) if tokenTxt == 'RUNTEST': obuf = bytearray(11) obuf[0] = XWAITSTATE obuf[1] = run_state obuf[2] = end_state struct.pack_into(">i", obuf, 3, run_count ) # big endian 4 byte int to obuf struct.pack_into(">i", obuf, 7, min_time ) # big endian 4 byte int to obuf outputFile.write( obuf ) else: # == 'LDELAY' obuf = bytearray(10) obuf[0] = LDELAY obuf[1] = run_state # LDELAY has no end_state struct.pack_into(">i", obuf, 2, run_count ) # big endian 4 byte int to obuf struct.pack_into(">i", obuf, 6, min_time ) # big endian 4 byte int to obuf outputFile.write( obuf ) output = open( outputFilename, mode='wb' ) hir = MASKSET('HIR') hdr = MASKSET('HDR') tir = MASKSET('TIR') tdr = MASKSET('TDR') sir = MASKSET('SIR') sdr = MASKSET('SDR') expecting_eof = True # one of the commands that take the shiftParts after the length, the parse # template for all of these commands is identical shiftOps = ('SDR', 'SIR', 'LSDR', 'HDR', 'HIR', 'TDR', 'TIR') # the order must correspond to shiftOps, this holds the MASKSETS. 'LSDR' shares sdr with 'SDR' shiftSets = (sdr, sir, sdr, hdr, hir, tdr, tir ) # what to expect as parameters to a shiftOp, i.e. after a SDR length or SIR length shiftParts = ('TDI', 'TDO', 'MASK', 'SMASK') # the set of legal states which can trail the RUNTEST command run_state_allowed = ('IRPAUSE', 'DRPAUSE', 'RESET', 'IDLE') enddr_state_allowed = ('DRPAUSE', 'IDLE') endir_state_allowed = ('IRPAUSE', 'IDLE') trst_mode_allowed = ('ON', 'OFF', 'Z', 'ABSENT') enddr_state = IDLE endir_state = IDLE frequency = 1.00e+006 # HZ; # change detection for xsdrsize and xtdomask xsdrsize = -1 # the last one sent, send only on change xtdomask = bytearray() # the last one sent, send only on change # we use a number of single byte writes for the XSVF command below cmdbuf = bytearray(1) # Save the XREPEAT setting into the file as first thing. obuf = bytearray(2) obuf[0] = XREPEAT obuf[1] = xrepeat output.write( obuf ) try: while 1: expecting_eof = True nextTok() expecting_eof = False # print( tokType, tokVal, tokLn ) if tokVal in shiftOps: shiftOp_linenum = tokLn shiftOp = tokVal set = shiftSets[shiftOps.index(shiftOp)] # set flags false, if we see one later, set that one true later sawTDI = sawTDO = sawMASK = sawSMASK = False nextTok() if tokType != 'int': raise ParseError( tokLn, tokVal, "Expecting 'int' giving %s length, got '%s'" % (shiftOp, tokType) ) length = tokVal nextTok() while tokVal != ';': if tokVal not in shiftParts: raise ParseError( tokLn, tokVal, "Expecting TDI, TDO, MASK, SMASK, or ';'") shiftPart = tokVal nextTok() if tokType != 'hex': raise ParseError( tokLn, tokVal, "Expecting hex bits" ) bits = makeBitArray( tokVal, length ) if shiftPart == 'TDI': sawTDI = True set.tdi = bits elif shiftPart == 'TDO': sawTDO = True set.tdo = bits elif shiftPart == 'MASK': sawMASK = True set.mask = bits elif shiftPart == 'SMASK': sawSMASK = True set.smask = bits nextTok() set.syncLengths( sawTDI, sawTDO, sawMASK, sawSMASK, length ) # process all the gathered parameters and generate outputs here if shiftOp == 'SIR': if doCOMMENTs: writeComment( output, shiftOp_linenum, 'SIR' ) tdi = combineBitVectors( tir.tdi, sir.tdi, hir.tdi ) if len(tdi) > 255: obuf = bytearray(3) obuf[0] = XSIR2 struct.pack_into( ">h", obuf, 1, len(tdi) ) else: obuf = bytearray(2) obuf[0] = XSIR obuf[1] = len(tdi) output.write( obuf ) obuf = makeXSVFbytes( tdi ) output.write( obuf ) elif shiftOp == 'SDR': if doCOMMENTs: writeComment( output, shiftOp_linenum, shiftOp ) if not sawTDO: # pass a zero filled bit vector for the sdr.mask mask = combineBitVectors( tdr.mask, bytearray(sdr.size), hdr.mask ) tdi = combineBitVectors( tdr.tdi, sdr.tdi, hdr.tdi ) if xsdrsize != len(tdi): xsdrsize = len(tdi) cmdbuf[0] = XSDRSIZE output.write( cmdbuf ) obuf = bytearray(4) struct.pack_into( ">i", obuf, 0, xsdrsize ) # big endian 4 byte int to obuf output.write( obuf ) if xtdomask != mask: xtdomask = mask cmdbuf[0] = XTDOMASK output.write( cmdbuf ) obuf = makeXSVFbytes( mask ) output.write( obuf ) cmdbuf[0] = XSDR output.write( cmdbuf ) obuf = makeXSVFbytes( tdi ) output.write( obuf ) else: mask = combineBitVectors( tdr.mask, sdr.mask, hdr.mask ) tdi = combineBitVectors( tdr.tdi, sdr.tdi, hdr.tdi ) tdo = combineBitVectors( tdr.tdo, sdr.tdo, hdr.tdo ) if xsdrsize != len(tdi): xsdrsize = len(tdi) cmdbuf[0] = XSDRSIZE output.write( cmdbuf ) obuf = bytearray(4) struct.pack_into(">i", obuf, 0, xsdrsize ) # big endian 4 byte int to obuf output.write( obuf ) if xtdomask != mask: xtdomask = mask cmdbuf[0] = XTDOMASK output.write( cmdbuf ) obuf = makeXSVFbytes( mask ) output.write( obuf ) cmdbuf[0] = XSDRTDO output.write( cmdbuf ) obuf = makeXSVFbytes( tdi ) output.write( obuf ) obuf = makeXSVFbytes( tdo ) output.write( obuf ) #print( "len(tdo)=", len(tdo), "len(tdr.tdo)=", len(tdr.tdo), "len(sdr.tdo)=", len(sdr.tdo), "len(hdr.tdo)=", len(hdr.tdo) ) elif shiftOp == 'LSDR': if doCOMMENTs: writeComment( output, shiftOp_linenum, shiftOp ) mask = combineBitVectors( tdr.mask, sdr.mask, hdr.mask ) tdi = combineBitVectors( tdr.tdi, sdr.tdi, hdr.tdi ) tdo = combineBitVectors( tdr.tdo, sdr.tdo, hdr.tdo ) if xsdrsize != len(tdi): xsdrsize = len(tdi) cmdbuf[0] = XSDRSIZE output.write( cmdbuf ) obuf = bytearray(4) struct.pack_into(">i", obuf, 0, xsdrsize ) # big endian 4 byte int to obuf output.write( obuf ) if xtdomask != mask: xtdomask = mask cmdbuf[0] = XTDOMASK output.write( cmdbuf ) obuf = makeXSVFbytes( mask ) output.write( obuf ) cmdbuf[0] = LSDR output.write( cmdbuf ) obuf = makeXSVFbytes( tdi ) output.write( obuf ) obuf = makeXSVFbytes( tdo ) output.write( obuf ) #print( "len(tdo)=", len(tdo), "len(tdr.tdo)=", len(tdr.tdo), "len(sdr.tdo)=", len(sdr.tdo), "len(hdr.tdo)=", len(hdr.tdo) ) elif tokVal == 'RUNTEST' or tokVal == 'LDELAY': # e.g. from lattice tools: # "RUNTEST IDLE 5 TCK 1.00E-003 SEC;" saveTok = tokVal nextTok() min_time = 0 run_count = 0 max_time = 600 # ten minutes if tokVal in run_state_allowed: run_state = StateTxt.index(tokVal) end_state = run_state # bottom of page 17 of SVF spec nextTok() if tokType != 'int' and tokType != 'float': raise ParseError( tokLn, tokVal, "Expecting 'int' or 'float' after RUNTEST [run_state]") timeval = tokVal; nextTok() if tokVal != 'TCK' and tokVal != 'SEC' and tokVal != 'SCK': raise ParseError( tokLn, tokVal, "Expecting 'TCK' or 'SEC' or 'SCK' after RUNTEST [run_state] (run_count|min_time)") if tokVal == 'TCK' or tokVal == 'SCK': run_count = int( timeval ) else: min_time = timeval nextTok() if tokType == 'int' or tokType == 'float': min_time = tokVal nextTok() if tokVal != 'SEC': raise ParseError( tokLn, tokVal, "Expecting 'SEC' after RUNTEST [run_state] run_count min_time") nextTok() if tokVal == 'MAXIMUM': nextTok() if tokType != 'int' and tokType != 'float': raise ParseError( tokLn, tokVal, "Expecting 'max_time' after RUNTEST [run_state] min_time SEC MAXIMUM") max_time = tokVal nextTok() if tokVal != 'SEC': raise ParseError( tokLn, tokVal, "Expecting 'max_time' after RUNTEST [run_state] min_time SEC MAXIMUM max_time") nextTok() if tokVal == 'ENDSTATE': nextTok() if tokVal not in run_state_allowed: raise ParseError( tokLn, tokVal, "Expecting 'run_state' after RUNTEST .... ENDSTATE") end_state = StateTxt.index(tokVal) nextTok() if tokVal != ';': raise ParseError( tokLn, tokVal, "Expecting ';' after RUNTEST ....") # print( "run_count=", run_count, "min_time=", min_time, # "max_time=", max_time, "run_state=", State[run_state], "end_state=", State[end_state] ) writeRUNTEST( output, run_state, end_state, run_count, min_time, saveTok ) elif tokVal == 'LCOUNT': nextTok() if tokType != 'int': raise ParseError( tokLn, tokVal, "Expecting integer 'count' after LCOUNT") loopCount = tokVal nextTok() if tokVal != ';': raise ParseError( tokLn, tokVal, "Expecting ';' after LCOUNT count") if doCOMMENTs: writeComment( output, tokLn, 'LCOUNT' ) obuf = bytearray(5) obuf[0] = LCOUNT struct.pack_into(">i", obuf, 1, loopCount ) # big endian 4 byte int to obuf output.write( obuf ) elif tokVal == 'ENDDR': nextTok() if tokVal not in enddr_state_allowed: raise ParseError( tokLn, tokVal, "Expecting 'stable_state' after ENDDR. (one of: DRPAUSE, IDLE)") enddr_state = StateTxt.index(tokVal) nextTok() if tokVal != ';': raise ParseError( tokLn, tokVal, "Expecting ';' after ENDDR stable_state") if doCOMMENTs: writeComment( output, tokLn, 'ENDDR' ) obuf = bytearray(2) obuf[0] = XENDDR # Page 10 of the March 1999 SVF spec shows that RESET is also allowed here. # Yet the XSVF spec has no provision for that, and uses a non-standard, i.e. # boolean argument to XENDDR which only handles two of the 3 intended states. obuf[1] = 1 if enddr_state == DRPAUSE else 0 output.write( obuf ) elif tokVal == 'ENDIR': nextTok() if tokVal not in endir_state_allowed: raise ParseError( tokLn, tokVal, "Expecting 'stable_state' after ENDIR. (one of: IRPAUSE, IDLE)") endir_state = StateTxt.index(tokVal) nextTok() if tokVal != ';': raise ParseError( tokLn, tokVal, "Expecting ';' after ENDIR stable_state") if doCOMMENTs: writeComment( output, tokLn, 'ENDIR' ) obuf = bytearray(2) obuf[0] = XENDIR # Page 10 of the March 1999 SVF spec shows that RESET is also allowed here. # Yet the XSVF spec has no provision for that, and uses a non-standard, i.e. # boolean argument to XENDDR which only handles two of the 3 intended states. obuf[1] = 1 if endir_state == IRPAUSE else 0 output.write( obuf ) elif tokVal == 'STATE': nextTok() ln = tokLn while tokVal != ';': if tokVal not in StateTxt: raise ParseError( tokLn, tokVal, "Expecting 'stable_state' after STATE") stable_state = StateTxt.index( tokVal ) if doCOMMENTs and ln != -1: writeComment( output, ln, 'STATE' ) ln = -1 # save comment only once obuf = bytearray(2) obuf[0] = XSTATE obuf[1] = stable_state output.write( obuf ) nextTok() elif tokVal == 'FREQUENCY': nextTok() if tokVal != ';': if tokType != 'int' and tokType != 'float': raise ParseError( tokLn, tokVal, "Expecting 'cycles HZ' after FREQUENCY") frequency = tokVal nextTok() if tokVal != 'HZ': raise ParseError( tokLn, tokVal, "Expecting 'HZ' after FREQUENCY cycles") nextTok() if tokVal != ';': raise ParseError( tokLn, tokVal, "Expecting ';' after FREQUENCY cycles HZ") elif tokVal == 'TRST': nextTok() if tokVal not in trst_mode_allowed: raise ParseError( tokLn, tokVal, "Expecting 'ON|OFF|Z|ABSENT' after TRST") trst_mode = tokVal nextTok() if tokVal != ';': raise ParseError( tokLn, tokVal, "Expecting ';' after TRST trst_mode") if doCOMMENTs: writeComment( output, tokLn, 'TRST %s' % trst_mode ) obuf = bytearray( 2 ) obuf[0] = XTRST obuf[1] = trst_mode_allowed.index( trst_mode ) # use the index as the binary argument to XTRST opcode output.write( obuf ) else: raise ParseError( tokLn, tokVal, "Unknown token '%s'" % tokVal) except StopIteration: if not expecting_eof: print( "Unexpected End of File at line ", tokLn ) except ParseError as pe: print( "\n", pe ) finally: # print( "closing file" ) cmdbuf[0] = XCOMPLETE output.write( cmdbuf ) output.close() 695' href='#n695'>695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 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