diff --git a/runtime/syntax/sicad.vim b/runtime/syntax/sicad.vim
new file mode 100644
index 0000000..7e32451
--- /dev/null
+++ b/runtime/syntax/sicad.vim
@@ -0,0 +1,413 @@
+" Vim syntax file
+" Language:     SiCAD (procedure language)
+" Maintainer:   Zsolt Branyiczky <zbranyiczky@lmark.mgx.hu>
+" Last Change:  2003 May 11
+" URL:		http://lmark.mgx.hu:81/download/vim/sicad.vim
+
+" For version 5.x: Clear all syntax items
+" For version 6.x: Quit when a syntax file was already loaded
+if version < 600
+  syntax clear
+elseif exists("b:current_syntax")
+  finish
+endif
+
+" use SQL highlighting after 'sql' command
+if version >= 600
+  syn include @SQL syntax/sql.vim
+else
+  syn include @SQL <sfile>:p:h/sql.vim
+endif
+unlet b:current_syntax
+
+" spaces are used in (auto)indents since sicad hates tabulator characters
+if version >= 600
+  setlocal expandtab
+else
+  set expandtab
+endif
+
+" ignore case
+syn case ignore
+
+" most important commands - not listed by ausku
+syn keyword sicadStatement define
+syn keyword sicadStatement dialog
+syn keyword sicadStatement do
+syn keyword sicadStatement dop contained
+syn keyword sicadStatement end
+syn keyword sicadStatement enddo
+syn keyword sicadStatement endp
+syn keyword sicadStatement erroff
+syn keyword sicadStatement erron
+syn keyword sicadStatement exitp
+syn keyword sicadGoto      goto contained
+syn keyword sicadStatement hh
+syn keyword sicadStatement if
+syn keyword sicadStatement in
+syn keyword sicadStatement msgsup
+syn keyword sicadStatement out
+syn keyword sicadStatement padd
+syn keyword sicadStatement parbeg
+syn keyword sicadStatement parend
+syn keyword sicadStatement pdoc
+syn keyword sicadStatement pprot
+syn keyword sicadStatement procd
+syn keyword sicadStatement procn
+syn keyword sicadStatement psav
+syn keyword sicadStatement psel
+syn keyword sicadStatement psymb
+syn keyword sicadStatement ptrace
+syn keyword sicadStatement ptstat
+syn keyword sicadStatement set
+syn keyword sicadStatement sql contained
+syn keyword sicadStatement step
+syn keyword sicadStatement sys
+syn keyword sicadStatement ww
+
+" functions
+syn match sicadStatement "\<atan("me=e-1
+syn match sicadStatement "\<atan2("me=e-1
+syn match sicadStatement "\<cos("me=e-1
+syn match sicadStatement "\<dist("me=e-1
+syn match sicadStatement "\<exp("me=e-1
+syn match sicadStatement "\<log("me=e-1
+syn match sicadStatement "\<log10("me=e-1
+syn match sicadStatement "\<sin("me=e-1
+syn match sicadStatement "\<sqrt("me=e-1
+syn match sicadStatement "\<tanh("me=e-1
+syn match sicadStatement "\<x("me=e-1
+syn match sicadStatement "\<y("me=e-1
+syn match sicadStatement "\<v("me=e-1
+syn match sicadStatement "\<x%g\=p[0-9]\{1,2}\>"me=s+1
+syn match sicadStatement "\<y%g\=p[0-9]\{1,2}\>"me=s+1
+
+" logical operators
+syn match sicadOperator "\.and\."
+syn match sicadOperator "\.ne\."
+syn match sicadOperator "\.not\."
+syn match sicadOperator "\.eq\."
+syn match sicadOperator "\.ge\."
+syn match sicadOperator "\.gt\."
+syn match sicadOperator "\.le\."
+syn match sicadOperator "\.lt\."
+syn match sicadOperator "\.or\."
+syn match sicadOperator "\.eqv\."
+syn match sicadOperator "\.neqv\."
+
+" variable name
+syn match sicadIdentifier "%g\=[irpt][0-9]\{1,2}\>"
+syn match sicadIdentifier "%g\=l[0-9]\>"
+syn match sicadIdentifier "%g\=[irptl]("me=e-1
+syn match sicadIdentifier "%error\>"
+syn match sicadIdentifier "%nsel\>"
+syn match sicadIdentifier "%nvar\>"
+syn match sicadIdentifier "%scl\>"
+syn match sicadIdentifier "%wd\>"
+syn match sicadIdentifier "\$[irt][0-9]\{1,2}\>" contained
+
+" label
+syn match sicadLabel1 "^ *\.[a-z][a-z0-9]\{0,7} \+[^ ]"me=e-1
+syn match sicadLabel1 "^ *\.[a-z][a-z0-9]\{0,7}\*"me=e-1
+syn match sicadLabel2 "\<goto \.\=[a-z][a-z0-9]\{0,7}\>" contains=sicadGoto
+syn match sicadLabel2 "\<goto\.[a-z][a-z0-9]\{0,7}\>" contains=sicadGoto
+
+" boolean
+syn match sicadBoolean "\.[ft]\."
+" integer without sign
+syn match sicadNumber "\<[0-9]\+\>"
+" floating point number, with dot, optional exponent
+syn match sicadFloat "\<[0-9]\+\.[0-9]*\(e[-+]\=[0-9]\+\)\=\>"
+" floating point number, starting with a dot, optional exponent
+syn match sicadFloat "\.[0-9]\+\(e[-+]\=[0-9]\+\)\=\>"
+" floating point number, without dot, with exponent
+syn match sicadFloat "\<[0-9]\+e[-+]\=[0-9]\+\>"
+
+" without this extraString definition a ' ;  ' could stop the comment
+syn region sicadString_ transparent start=+'+ end=+'+ oneline contained
+" string
+syn region sicadString start=+'+ end=+'+ oneline
+
+" comments - nasty ones in sicad
+
+" - ' *  blabla' or ' *  blabla;'
+syn region sicadComment start="^ *\*" skip='\\ *$' end=";"me=e-1 end="$" contains=sicadString_
+" - ' .LABEL03 *  blabla' or ' .LABEL03 *  blabla;'
+syn region sicadComment start="^ *\.[a-z][a-z0-9]\{0,7} *\*" skip='\\ *$' end=";"me=e-1 end="$" contains=sicadLabel1,sicadString_
+" - '; * blabla' or '; * blabla;'
+syn region sicadComment start="; *\*"ms=s+1 skip='\\ *$' end=";"me=e-1 end="$" contains=sicadString_
+" - comments between docbeg and docend
+syn region sicadComment matchgroup=sicadStatement start="\<docbeg\>" end="\<docend\>"
+
+" catch \ at the end of line
+syn match sicadLineCont "\\ *$"
+
+" parameters in dop block - for the time being it is not used
+"syn match sicadParameter " [a-z][a-z0-9]*[=:]"me=e-1 contained
+" dop block - for the time being it is not used
+syn region sicadDopBlock transparent matchgroup=sicadStatement start='\<dop\>' skip='\\ *$' end=';'me=e-1 end='$' contains=ALL
+
+" sql block - new highlighting mode is used (see syn include)
+syn region sicadSqlBlock transparent matchgroup=sicadStatement start='\<sql\>' skip='\\ *$' end=';'me=e-1 end='$' contains=@SQL,sicadIdentifier,sicadLineCont
+
+" synchronizing
+syn sync clear  " clear sync used in sql.vim
+syn sync match sicadSyncComment groupthere NONE "\<docend\>"
+syn sync match sicadSyncComment grouphere sicadComment "\<docbeg\>"
+" next line must be examined too
+syn sync linecont "\\ *$"
+
+" catch error caused by tabulator key
+syn match sicadError "\t"
+" catch errors caused by wrong parenthesis
+"syn region sicadParen transparent start='(' end=')' contains=ALLBUT,sicadParenError
+syn region sicadParen transparent start='(' skip='\\ *$' end=')' end='$' contains=ALLBUT,sicadParenError
+syn match sicadParenError ')'
+"syn region sicadApostrophe transparent start=+'+ end=+'+ contains=ALLBUT,sicadApostropheError
+"syn match sicadApostropheError +'+
+" not closed apostrophe
+"syn region sicadError start=+'+ end=+$+ contains=ALLBUT,sicadApostropheError
+"syn match sicadApostropheError +'[^']*$+me=s+1 contained
+
+" SICAD keywords
+syn keyword sicadStatement abst add addsim adrin aib
+syn keyword sicadStatement aibzsn aidump aifgeo aisbrk alknam
+syn keyword sicadStatement alknr alksav alksel alktrc alopen
+syn keyword sicadStatement ansbo aractiv ararea arareao ararsfs
+syn keyword sicadStatement arbuffer archeck arcomv arcont arconv
+syn keyword sicadStatement arcopy arcopyo arcorr arcreate arerror
+syn keyword sicadStatement areval arflfm arflop arfrast argbkey
+syn keyword sicadStatement argenf argraph argrapho arinters arkompfl
+syn keyword sicadStatement arlasso arlcopy arlgraph arline arlining
+syn keyword sicadStatement arlisly armakea armemo arnext aroverl
+syn keyword sicadStatement arovers arparkmd arpars arrefp arselect
+syn keyword sicadStatement arset arstruct arunify arupdate arvector
+syn keyword sicadStatement arveinfl arvflfl arvoroni ausku basis
+syn keyword sicadStatement basisaus basisdar basisnr bebos befl
+syn keyword sicadStatement befla befli befls beo beorta
+syn keyword sicadStatement beortn bep bepan bepap bepola
+syn keyword sicadStatement bepoln bepsn bepsp ber berili
+syn keyword sicadStatement berk bewz bkl bli bma
+syn keyword sicadStatement bmakt bmakts bmbm bmerk bmerw
+syn keyword sicadStatement bmerws bminit bmk bmorth bmos
+syn keyword sicadStatement bmoss bmpar bmsl bmsum bmsums
+syn keyword sicadStatement bmver bmvero bmw bo bta
+syn keyword sicadStatement buffer bvl bw bza bzap
+syn keyword sicadStatement bzd bzgera bzorth cat catel
+syn keyword sicadStatement cdbdiff ce cgmparam close closesim
+syn keyword sicadStatement comgener comp comp conclose conclose coninfo
+syn keyword sicadStatement conopen conread contour conwrite cop
+syn keyword sicadStatement copar coparp coparp2 copel cr
+syn keyword sicadStatement cs cstat cursor d da
+syn keyword sicadStatement dal dasp dasps dataout dcol
+syn keyword sicadStatement dd defsr del delel deskrdef
+syn keyword sicadStatement df dfn dfns dfpos dfr
+syn keyword sicadStatement dgd dgm dgp dgr dh
+syn keyword sicadStatement diag diaus dir disbsd dkl
+syn keyword sicadStatement dktx dkur dlgfix dlgfre dma
+syn keyword sicadStatement dprio dr druse dsel dskinfo
+syn keyword sicadStatement dsr dv dve eba ebd
+syn keyword sicadStatement ebdmod ebs edbsdbin edbssnin edbsvtin
+syn keyword sicadStatement edt egaus egdef egdefs eglist
+syn keyword sicadStatement egloe egloenp egloes egxx eib
+syn keyword sicadStatement ekur ekuradd elel elpos epg
+syn keyword sicadStatement esau esauadd esek eta etap
+syn keyword sicadStatement etav feparam ficonv filse fl
+syn keyword sicadStatement fli flin flini flinit flins
+syn keyword sicadStatement flkor fln flnli flop flout
+syn keyword sicadStatement flowert flparam flraster flsy flsyd
+syn keyword sicadStatement flsym flsyms flsymt fmtatt fmtdia
+syn keyword sicadStatement fmtlib fpg gbadddb gbaim gbanrs
+syn keyword sicadStatement gbatw gbau gbaudit gbclosp gbcredic
+syn keyword sicadStatement gbcreem gbcreld gbcresdb gbcretd gbde
+syn keyword sicadStatement gbdeldb gbdeldic gbdelem gbdelld gbdelref
+syn keyword sicadStatement gbdeltd gbdisdb gbdisem gbdisld gbdistd
+syn keyword sicadStatement gbebn gbemau gbepsv gbgetdet gbgetes
+syn keyword sicadStatement gbgetmas gbgqel gbgqelr gbgqsa gbgrant
+syn keyword sicadStatement gbimpdic gbler gblerb gblerf gbles
+syn keyword sicadStatement gblocdic gbmgmg gbmntdb gbmoddb gbnam
+syn keyword sicadStatement gbneu gbopenp gbpoly gbpos gbpruef
+syn keyword sicadStatement gbpruefg gbps gbqgel gbqgsa gbrefdic
+syn keyword sicadStatement gbreftab gbreldic gbresem gbrevoke gbsav
+syn keyword sicadStatement gbsbef gbsddk gbsicu gbsrt gbss
+syn keyword sicadStatement gbstat gbsysp gbszau gbubp gbueb
+syn keyword sicadStatement gbunmdb gbuseem gbw gbweg gbwieh
+syn keyword sicadStatement gbzt gelp gera getvar hgw
+syn keyword sicadStatement hpg hr0 hra hrar icclchan
+syn keyword sicadStatement iccrecon icdescon icfree icgetcon icgtresp
+syn keyword sicadStatement icopchan icputcon icreacon icreqd icreqnw
+syn keyword sicadStatement icreqw icrespd icresrve icwricon imsget
+syn keyword sicadStatement imsgqel imsmget imsplot imsprint inchk
+syn keyword sicadStatement inf infd inst kbml kbmls
+syn keyword sicadStatement kbmm kbmms kbmt kbmtdps kbmts
+syn keyword sicadStatement khboe khbol khdob khe khetap
+syn keyword sicadStatement khfrw khktk khlang khld khmfrp
+syn keyword sicadStatement khmks khms khpd khpfeil khpl
+syn keyword sicadStatement khprofil khrand khsa khsabs khsaph
+syn keyword sicadStatement khsd khsdl khse khskbz khsna
+syn keyword sicadStatement khsnum khsob khspos khsvph khtrn
+syn keyword sicadStatement khver khzpe khzpl kib kldat
+syn keyword sicadStatement klleg klsch klsym klvert kmpg
+syn keyword sicadStatement kmtlage kmtp kmtps kodef kodefp
+syn keyword sicadStatement kodefs kok kokp kolae kom
+syn keyword sicadStatement kontly kopar koparp kopg kosy
+syn keyword sicadStatement kp kr krsek krtclose krtopen
+syn keyword sicadStatement ktk lad lae laesel language
+syn keyword sicadStatement lasso lbdes lcs ldesk ldesks
+syn keyword sicadStatement le leak leattdes leba lebas
+syn keyword sicadStatement lebaznp lebd lebm lebv lebvaus
+syn keyword sicadStatement lebvlist lede ledel ledepo ledepol
+syn keyword sicadStatement ledepos leder ledist ledm lee
+syn keyword sicadStatement leeins lees lege lekr lekrend
+syn keyword sicadStatement lekwa lekwas lel lelh lell
+syn keyword sicadStatement lelp lem lena lend lenm
+syn keyword sicadStatement lep lepe lepee lepko lepl
+syn keyword sicadStatement lepmko lepmkop lepos leposm leqs
+syn keyword sicadStatement leqsl leqssp leqsv leqsvov les
+syn keyword sicadStatement lesch lesr less lestd let
+syn keyword sicadStatement letaum letl lev levm levtm
+syn keyword sicadStatement levtp levtr lew lewm lexx
+syn keyword sicadStatement lfs li lining lldes lmode
+syn keyword sicadStatement loedk loepkt lop lose loses
+syn keyword sicadStatement lp lppg lppruef lr ls
+syn keyword sicadStatement lsop lsta lstat ly lyaus
+syn keyword sicadStatement lz lza lzae lzbz lze
+syn keyword sicadStatement lznr lzo lzpos ma ma0
+syn keyword sicadStatement ma1 mad map mapoly mcarp
+syn keyword sicadStatement mccfr mccgr mcclr mccrf mcdf
+syn keyword sicadStatement mcdma mcdr mcdrp mcdve mcebd
+syn keyword sicadStatement mcgse mcinfo mcldrp md me
+syn keyword sicadStatement mefd mefds minmax mipg ml
+syn keyword sicadStatement mmcmdme mmdbf mmdellb mmdir mmdome
+syn keyword sicadStatement mmfsb mminfolb mmlapp mmlbf mmlistlb
+syn keyword sicadStatement mmloadcm mmmsg mmreadlb mmsetlb mmshowcm
+syn keyword sicadStatement mmstatme mnp mpo mr mra
+syn keyword sicadStatement ms msav msgout msgsnd msp
+syn keyword sicadStatement mspf mtd nasel ncomp new
+syn keyword sicadStatement nlist nlistlt nlistly nlistnp nlistpo
+syn keyword sicadStatement np npa npdes npe npem
+syn keyword sicadStatement npinfa npruef npsat npss npssa
+syn keyword sicadStatement ntz oa oan odel odf
+syn keyword sicadStatement odfx oj oja ojaddsk ojaed
+syn keyword sicadStatement ojaeds ojaef ojaefs ojaen ojak
+syn keyword sicadStatement ojaks ojakt ojakz ojalm ojatkis
+syn keyword sicadStatement ojatt ojatw ojbsel ojcasel ojckon
+syn keyword sicadStatement ojde ojdtl ojeb ojebd ojel
+syn keyword sicadStatement ojelpas ojesb ojesbd ojex ojezge
+syn keyword sicadStatement ojko ojlb ojloe ojlsb ojmerk
+syn keyword sicadStatement ojmos ojnam ojpda ojpoly ojprae
+syn keyword sicadStatement ojs ojsak ojsort ojstrukt ojsub
+syn keyword sicadStatement ojtdef ojvek ojx old oldd
+syn keyword sicadStatement op opa opa1 open opensim
+syn keyword sicadStatement opnbsd orth osanz ot otp
+syn keyword sicadStatement otrefp param paranf pas passw
+syn keyword sicadStatement pcatchf pda pdadd pg pg0
+syn keyword sicadStatement pgauf pgaufsel pgb pgko pgm
+syn keyword sicadStatement pgr pgvs pily pkpg plot
+syn keyword sicadStatement plotf plotfr pmap pmdata pmdi
+syn keyword sicadStatement pmdp pmeb pmep pminfo pmlb
+syn keyword sicadStatement pmli pmlp pmmod pnrver poa
+syn keyword sicadStatement pos posa posaus post printfr
+syn keyword sicadStatement protect prs prssy prsym ps
+syn keyword sicadStatement psadd psclose psopen psparam psprw
+syn keyword sicadStatement psres psstat psw pswr qualif
+syn keyword sicadStatement rahmen raster rasterd rbbackup rbchang2
+syn keyword sicadStatement rbchange rbcmd rbcoldst rbcolor rbcopy
+syn keyword sicadStatement rbcut rbcut2 rbdbcl rbdbload rbdbop
+syn keyword sicadStatement rbdbwin rbdefs rbedit rbfdel rbfill
+syn keyword sicadStatement rbfill2 rbfload rbfload2 rbfnew rbfnew2
+syn keyword sicadStatement rbfpar rbfree rbg rbgetcol rbgetdst
+syn keyword sicadStatement rbinfo rbpaste rbpixel rbrstore rbsnap
+syn keyword sicadStatement rbsta rbtile rbtrpix rbvtor rcol
+syn keyword sicadStatement rd rdchange re reb rebmod
+syn keyword sicadStatement refunc ren renel rk rkpos
+syn keyword sicadStatement rohr rohrpos rpr rr rr0
+syn keyword sicadStatement rra rrar rs samtosdb sav
+syn keyword sicadStatement savd savesim savx scol scopy
+syn keyword sicadStatement scopye sdbtosam sddk sdwr se
+syn keyword sicadStatement selaus selpos seman semi sesch
+syn keyword sicadStatement setscl setvar sfclntpf sfconn sffetchf
+syn keyword sicadStatement sffpropi sfftypi sfqugeoc sfquwhcl sfself
+syn keyword sicadStatement sfstat sftest sge sid sie
+syn keyword sicadStatement sig sigp skk skks sn
+syn keyword sicadStatement sn21 snpa snpar snparp snparps
+syn keyword sicadStatement snpars snpas snpd snpi snpkor
+syn keyword sicadStatement snpl snpm sob sob0 sobloe
+syn keyword sicadStatement sobs sof sop split spr
+syn keyword sicadStatement sqdadd sqdlad sqdold sqdsav
+syn keyword sicadStatement sr sres srt sset stat
+syn keyword sicadStatement stdtxt string strukt strupru suinfl
+syn keyword sicadStatement suinflk suinfls supo supo1 sva
+syn keyword sicadStatement svr sy sya syly sysout
+syn keyword sicadStatement syu syux taa tabeg tabl
+syn keyword sicadStatement tabm tam tanr tapg tapos
+syn keyword sicadStatement tarkd tas tase tb tbadd
+syn keyword sicadStatement tbd tbext tbget tbint tbout
+syn keyword sicadStatement tbput tbsat tbsel tbstr tcaux
+syn keyword sicadStatement tccable tcchkrep tccomm tccond tcdbg
+syn keyword sicadStatement tcgbnr tcgrpos tcinit tclconv tcmodel
+syn keyword sicadStatement tcnwe tcpairs tcpath tcrect tcrmdli
+syn keyword sicadStatement tcscheme tcschmap tcse tcselc tcstar
+syn keyword sicadStatement tcstrman tcsubnet tcsymbol tctable tcthrcab
+syn keyword sicadStatement tctrans tctst tdb tdbdel tdbget
+syn keyword sicadStatement tdblist tdbput tgmod titel tmoff
+syn keyword sicadStatement tmon tp tpa tps tpta
+syn keyword sicadStatement tra trans transkdo transopt transpro
+syn keyword sicadStatement triangle trm trpg trrkd trs
+syn keyword sicadStatement ts tsa tx txa txchk
+syn keyword sicadStatement txcng txju txl txp txpv
+syn keyword sicadStatement txtcmp txv txz uckon uiinfo
+syn keyword sicadStatement uistatus umdk umdk1 umdka umge
+syn keyword sicadStatement umges umr verbo verflli verif
+syn keyword sicadStatement verly versinfo vfg vpactive vpcenter
+syn keyword sicadStatement vpcreate vpdelete vpinfo vpmodify vpscroll
+syn keyword sicadStatement vpsta wabsym wzmerk zdrhf zdrhfn
+syn keyword sicadStatement zdrhfw zdrhfwn zefp zfl zflaus
+syn keyword sicadStatement zka zlel zlels zortf zortfn
+syn keyword sicadStatement zortfw zortfwn zortp zortpn zparb
+syn keyword sicadStatement zparbn zparf zparfn zparfw zparfwn
+syn keyword sicadStatement zparp zparpn zwinkp zwinkpn
+
+" Define the default highlighting.
+" For version 5.7 and earlier: only when not done already
+" For version 5.8 and later: only when an item doesn't have highlighting yet
+if version >= 508 || !exists("did_sicad_syntax_inits")
+
+  if version < 508
+    let did_sicad_syntax_inits = 1
+    command -nargs=+ HiLink hi link <args>
+  else
+    command -nargs=+ HiLink hi def link <args>
+  endif
+
+  HiLink sicadLabel PreProc
+  HiLink sicadLabel1 sicadLabel
+  HiLink sicadLabel2 sicadLabel
+  HiLink sicadConditional Conditional
+  HiLink sicadBoolean Boolean
+  HiLink sicadNumber Number
+  HiLink sicadFloat Float
+  HiLink sicadOperator Operator
+  HiLink sicadStatement Statement
+  HiLink sicadParameter sicadStatement
+  HiLink sicadGoto sicadStatement
+  HiLink sicadLineCont sicadStatement
+  HiLink sicadString String
+  HiLink sicadComment Comment
+  HiLink sicadSpecial Special
+  HiLink sicadIdentifier Type
+"  HiLink sicadIdentifier Identifier
+  HiLink sicadError Error
+  HiLink sicadParenError sicadError
+  HiLink sicadApostropheError sicadError
+  HiLink sicadStringError sicadError
+  HiLink sicadCommentError sicadError
+"  HiLink sqlStatement Special  " modified highlight group in sql.vim
+
+  delcommand HiLink
+
+endif
+
+let b:current_syntax = "sicad"
+
+" vim: ts=8 sw=2