File:  [gforth] / gforth / prims2x.fs
Revision 1.29: download - view: text, annotated - select for diffs
Sun Dec 14 01:15:20 1997 UTC (21 years, 10 months ago) by pazsan
Branches: MAIN
CVS tags: HEAD
Added global library load, reversed order of library load after startup
Fixed prims2x.fs to load search.fs first.

    1: \ converts primitives to, e.g., C code 
    2: 
    3: \ Copyright (C) 1995 Free Software Foundation, Inc.
    4: 
    5: \ This file is part of Gforth.
    6: 
    7: \ Gforth is free software; you can redistribute it and/or
    8: \ modify it under the terms of the GNU General Public License
    9: \ as published by the Free Software Foundation; either version 2
   10: \ of the License, or (at your option) any later version.
   11: 
   12: \ This program is distributed in the hope that it will be useful,
   13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
   14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   15: \ GNU General Public License for more details.
   16: 
   17: \ You should have received a copy of the GNU General Public License
   18: \ along with this program; if not, write to the Free Software
   19: \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   20: 
   21: 
   22: \ This is not very nice (hard limits, no checking, assumes 1 chars = 1)
   23: 
   24: \ Optimizations:
   25: \ superfluous stores are removed. GCC removes the superfluous loads by itself
   26: \ TOS and FTOS can be kept in register( variable)s.
   27: \ 
   28: \ Problems:
   29: \ The TOS optimization is somewhat hairy. The problems by example:
   30: \ 1) dup ( w -- w w ): w=TOS; sp-=1; sp[1]=w; TOS=w;
   31: \    The store is not superfluous although the earlier opt. would think so
   32: \    Alternatively:    sp[0]=TOS; w=TOS; sp-=1; TOS=w;
   33: \ 2) ( -- .. ): sp[0] = TOS; ... /* This additional store is necessary */
   34: \ 3) ( .. -- ): ... TOS = sp[0]; /* as well as this load */
   35: \ 4) ( -- ): /* but here they are unnecessary */
   36: \ 5) Words that call NEXT themselves have to be done very carefully.
   37: \
   38: \ To do:
   39: \ add the store optimization for doubles
   40: \ regarding problem 1 above: It would be better (for over) to implement
   41: \ 	the alternative
   42: 
   43: warnings off
   44: 
   45: include search.fs
   46: include extend.fs
   47: 
   48: \ require interpretation.fs
   49: \ require debugs.fs
   50: [IFUNDEF] vocabulary    include search.fs [THEN]
   51: [IFUNDEF] environment?  include environ.fs      [THEN]
   52: include gray.fs
   53: 
   54: 100 constant max-effect \ number of things on one side of a stack effect
   55: 255 constant maxchar
   56: maxchar 1+ constant eof-char
   57: #tab constant tab-char
   58: #lf constant nl-char
   59: 
   60: : read-whole-file ( c-addr1 file-id -- c-addr2 )
   61: \ reads the contents of the file file-id puts it into memory at c-addr1
   62: \ c-addr2 is the first address after the file block
   63:   >r dup $7fffffff r> read-file throw + ;
   64: 
   65: variable rawinput \ pointer to next character to be scanned
   66: variable endrawinput \ pointer to the end of the input (the char after the last)
   67: variable cookedinput \ pointer to the next char to be parsed
   68: variable line \ line number of char pointed to by input
   69: 1 line !
   70: 2variable filename \ filename of original input file
   71: 0 0 filename 2!
   72: 2variable f-comment
   73: 0 0 f-comment 2!
   74: variable skipsynclines \ are sync lines ("#line ...") invisible to the parser?
   75: skipsynclines on 
   76: 
   77: Variable flush-comment flush-comment off
   78: 
   79: : ?flush-comment
   80:  flush-comment @ 0= ?EXIT
   81:  f-comment 2@ nip
   82:  IF  cr f-comment 2@ 2 /string type 0 0 f-comment 2! THEN ;
   83: 
   84: : start ( -- addr )
   85:  cookedinput @ ;
   86: 
   87: : end ( addr -- addr u )
   88:  cookedinput @ over - ;
   89: 
   90: variable output \ xt ( -- ) of output word
   91: 
   92: : printprim ( -- )
   93:  output @ execute ;
   94: 
   95: : field
   96:  <builds-field ( n1 n2 -- n3 )
   97:  does>         ( addr1 -- addr2 )
   98:    @ + ;
   99: 
  100: : const-field
  101:  <builds-field ( n1 n2 -- n3 )
  102:  does>         ( addr -- w )
  103:    @ + @ ;
  104: 
  105: struct
  106:  2 cells field item-name
  107:  cell field item-d-offset
  108:  cell field item-f-offset
  109:  cell field item-type
  110: constant item-descr
  111: 
  112: 2variable forth-name
  113: 2variable wordset
  114: 2variable c-name
  115: 2variable doc
  116: 2variable c-code
  117: 2variable forth-code
  118: 2variable stack-string
  119: create effect-in  max-effect item-descr * allot
  120: create effect-out max-effect item-descr * allot
  121: variable effect-in-end ( pointer )
  122: variable effect-out-end ( pointer )
  123: 2variable effect-in-size
  124: 2variable effect-out-size
  125: variable c-line
  126: 2variable c-filename
  127: variable name-line
  128: 2variable name-filename
  129: 2variable last-name-filename
  130: 
  131: variable primitive-number -10 primitive-number !
  132: 
  133: \ for several reasons stack items of a word are stored in a wordlist
  134: \ since neither forget nor marker are implemented yet, we make a new
  135: \ wordlist for every word and store it in the variable items
  136: variable items
  137: 
  138: \ a few more set ops
  139: 
  140: : bit-equivalent ( w1 w2 -- w3 )
  141:  xor invert ;
  142: 
  143: : complement ( set1 -- set2 )
  144:  empty ['] bit-equivalent binary-set-operation ;
  145: 
  146: \ the parser
  147: 
  148: eof-char max-member \ the whole character set + EOF
  149: 
  150: : getinput ( -- n )
  151:  rawinput @ endrawinput @ =
  152:  if
  153:    eof-char
  154:  else
  155:    cookedinput @ c@
  156:  endif ;
  157: 
  158: :noname ( n -- )
  159:  dup bl > if
  160:   emit space
  161:  else
  162:   .
  163:  endif ;
  164: print-token !
  165: 
  166: : testchar? ( set -- f )
  167:  getinput member? ;
  168: ' testchar? test-vector !
  169: 
  170: : checksyncline ( -- )
  171:     \ when input points to a newline, check if the next line is a
  172:     \ sync line.  If it is, perform the appropriate actions.
  173:     rawinput @ >r
  174:     s" #line " r@ over compare 0<> if
  175: 	rdrop 1 line +! EXIT
  176:     endif
  177:     0. r> 6 chars + 20 >number drop >r drop line ! r> ( c-addr )
  178:     dup c@ bl = if
  179: 	char+ dup c@ [char] " <> abort" sync line syntax"
  180: 	char+ dup 100 [char] " scan drop swap 2dup - save-mem filename 2!
  181: 	char+
  182:     endif
  183:     dup c@ nl-char <> abort" sync line syntax"
  184:     skipsynclines @ if
  185: 	dup char+ rawinput !
  186: 	rawinput @ c@ cookedinput @ c!
  187:     endif
  188:     drop ;
  189: 
  190: : ?nextchar ( f -- )
  191:     ?not? if
  192: 	filename 2@ type ." :" line @ 0 .r ." : syntax error, wrong char:"
  193: 	getinput . cr
  194: 	rawinput @ endrawinput @ over - 100 min type cr
  195: 	abort
  196:     endif
  197:     rawinput @ endrawinput @ <> if
  198: 	rawinput @ c@
  199: 	1 chars rawinput +!
  200: 	1 chars cookedinput +!
  201: 	nl-char = if
  202: 	    checksyncline
  203: 	endif
  204: 	rawinput @ c@ cookedinput @ c!
  205:     endif ;
  206: 
  207: : charclass ( set "name" -- )
  208:  ['] ?nextchar terminal ;
  209: 
  210: : .. ( c1 c2 -- set )
  211:  ( creates a set that includes the characters c, c1<=c<=c2 )
  212:  empty copy-set
  213:  swap 1+ rot do
  214:   i over add-member
  215:  loop ;
  216: 
  217: : ` ( -- terminal ) ( use: ` c )
  218:  ( creates anonymous terminal for the character c )
  219:  char singleton ['] ?nextchar make-terminal ;
  220: 
  221: char a char z ..  char A char Z ..  union char _ singleton union  charclass letter
  222: char 0 char 9 ..					charclass digit
  223: bl singleton						charclass blank
  224: tab-char singleton					charclass tab
  225: nl-char singleton eof-char over add-member complement	charclass nonl
  226: nl-char singleton eof-char over add-member char : over add-member complement  charclass nocolonnl
  227: bl 1+ maxchar ..					charclass nowhite
  228: char " singleton eof-char over add-member complement	charclass noquote
  229: nl-char singleton					charclass nl
  230: eof-char singleton					charclass eof
  231: 
  232: 
  233: (( letter (( letter || digit )) **
  234: )) <- c-name ( -- )
  235: 
  236: nowhite ++
  237: <- name ( -- )
  238: 
  239: (( {{ ?flush-comment start }} ` \ nonl ** nl {{ end
  240:       2dup 2 min s" \+" compare 0= IF  f-comment 2!  ELSE  2drop  THEN }}
  241: )) <- comment ( -- )
  242: 
  243: (( {{ effect-in }} (( {{ start }} c-name {{ end 2 pick item-name 2! item-descr + }} blank ** )) ** {{ effect-in-end ! }}
  244:    ` - ` - blank **
  245:    {{ effect-out }} (( {{ start }} c-name {{ end 2 pick item-name 2! item-descr + }} blank ** )) ** {{ effect-out-end ! }}
  246: )) <- stack-effect ( -- )
  247: 
  248: (( {{ s" " doc 2! s" " forth-code 2! }}
  249:    (( comment || nl )) **
  250:    (( {{ line @ name-line ! filename 2@ name-filename 2! }}
  251:       {{ start }} name {{ end 2dup forth-name 2! c-name 2! }}  tab ++
  252:       {{ start }} stack-effect {{ end stack-string 2! }} tab ++
  253:         {{ start }} name {{ end wordset 2! }} tab **
  254:         (( {{ start }}  c-name {{ end c-name 2! }} )) ??  nl
  255:    ))
  256:    (( ` " ` "  {{ start }} (( noquote ++ ` " )) ++ {{ end 1- doc 2! }} ` " nl )) ??
  257:    {{ skipsynclines off line @ c-line ! filename 2@ c-filename 2! start }} (( nocolonnl nonl **  nl )) ** {{ end c-code 2! skipsynclines on }}
  258:    (( ` :  nl
  259:       {{ start }} (( nonl ++  nl )) ++ {{ end forth-code 2! }}
  260:    )) ??
  261:    (( nl || eof ))
  262: )) <- primitive ( -- )
  263: 
  264: (( (( primitive {{ printprim }} )) **  eof ))
  265: parser primitives2something
  266: warnings @ [IF]
  267: .( parser generated ok ) cr
  268: [THEN]
  269: 
  270: : primfilter ( file-id xt -- )
  271: \ fileid is for the input file, xt ( -- ) is for the output word
  272:  output !
  273:  here dup rawinput ! cookedinput !
  274:  here swap read-whole-file
  275:  dup endrawinput !
  276:  here - allot
  277:  align
  278:  checksyncline
  279: \ begin
  280: \     getinput dup eof-char = ?EXIT emit true ?nextchar
  281: \ again ;
  282:  primitives2something ;
  283: 
  284: \ types
  285: 
  286: struct
  287:  2 cells field type-c-name
  288:  cell const-field type-d-size
  289:  cell const-field type-f-size
  290:  cell const-field type-fetch-handler
  291:  cell const-field type-store-handler
  292: constant type-description
  293: 
  294: : data-stack-access ( n1 n2 n3 -- )
  295: \ n1 is the offset of the accessed item, n2, n3 are effect-*-size
  296:  drop swap - 1- dup
  297:  if
  298:    ." sp[" 0 .r ." ]"
  299:  else
  300:    drop ." TOS"
  301:  endif ;
  302: 
  303: : fp-stack-access ( n1 n2 n3 -- )
  304: \ n1 is the offset of the accessed item, n2, n3 are effect-*-size
  305:  nip swap - 1- dup
  306:  if
  307:    ." fp[" 0 .r ." ]"
  308:  else
  309:    drop ." FTOS"
  310:  endif ;
  311: 
  312: : fetch-single ( item -- )
  313:  >r
  314:  r@ item-name 2@ type
  315:  ."  = (" 
  316:  r@ item-type @ type-c-name 2@ type ." ) "
  317:  r@ item-d-offset @ effect-in-size 2@ data-stack-access ." ;" cr
  318:  rdrop ; 
  319: 
  320: : fetch-double ( item -- )
  321:  >r
  322:  ." FETCH_DCELL("
  323:  r@ item-name 2@ type ." , "
  324:  r@ item-d-offset @ dup    effect-in-size 2@ data-stack-access
  325:  ." , "			1+ effect-in-size 2@ data-stack-access
  326:  ." );" cr
  327:  rdrop ;
  328: 
  329: : fetch-float ( item -- )
  330:  >r
  331:  r@ item-name 2@ type
  332:  ."  = "
  333:  \ ." (" r@ item-type @ type-c-name 2@ type ." ) "
  334:  r@ item-f-offset @ effect-in-size 2@ fp-stack-access ." ;" cr
  335:  rdrop ;
  336: 
  337: : d-same-as-in? ( item -- f )
  338: \ f is true iff the offset of item is the same as on input
  339:  >r
  340:  r@ item-name 2@ items @ search-wordlist 0=
  341:  abort" bug"
  342:  execute @
  343:  dup r@ =
  344:  if \ item first appeared in output
  345:    drop false
  346:  else
  347:    item-d-offset @ r@ item-d-offset @ =
  348:  endif
  349:  rdrop ;
  350: 
  351: : is-in-tos? ( item -- f )
  352: \ true if item has the same offset as the input TOS
  353:  item-d-offset @ 1+ effect-in-size 2@ drop = ;
  354: 
  355: : really-store-single ( item -- )
  356:  >r
  357:  r@ item-d-offset @ effect-out-size 2@ data-stack-access ."  = (Cell)"
  358:  r@ item-name 2@ type ." ;"
  359:  rdrop ;
  360: 
  361: : store-single ( item -- )
  362:  >r
  363:  r@ d-same-as-in?
  364:  if
  365:    r@ is-in-tos?
  366:    if
  367:      ." IF_TOS(" r@ really-store-single ." );" cr
  368:    endif
  369:  else
  370:    r@ really-store-single cr
  371:  endif
  372:  rdrop ;
  373: 
  374: : store-double ( item -- )
  375: \ !! store optimization is not performed, because it is not yet needed
  376:  >r
  377:  ." STORE_DCELL(" r@ item-name 2@ type ." , "
  378:  r@ item-d-offset @ dup    effect-out-size 2@ data-stack-access
  379:  ." , "			1+ effect-out-size 2@ data-stack-access
  380:  ." );" cr
  381:  rdrop ;
  382: 
  383: : f-same-as-in? ( item -- f )
  384: \ f is true iff the offset of item is the same as on input
  385:  >r
  386:  r@ item-name 2@ items @ search-wordlist 0=
  387:  abort" bug"
  388:  execute @
  389:  dup r@ =
  390:  if \ item first appeared in output
  391:    drop false
  392:  else
  393:    item-f-offset @ r@ item-f-offset @ =
  394:  endif
  395:  rdrop ;
  396: 
  397: : is-in-ftos? ( item -- f )
  398: \ true if item has the same offset as the input TOS
  399:  item-f-offset @ 1+ effect-in-size 2@ nip = ;
  400: 
  401: : really-store-float ( item -- )
  402:  >r
  403:  r@ item-f-offset @ effect-out-size 2@ fp-stack-access ."  = "
  404:  r@ item-name 2@ type ." ;"
  405:  rdrop ;
  406: 
  407: : store-float ( item -- )
  408:  >r
  409:  r@ f-same-as-in?
  410:  if
  411:    r@ is-in-ftos?
  412:    if
  413:      ." IF_FTOS(" r@ really-store-float ." );" cr
  414:    endif
  415:  else
  416:    r@ really-store-float cr
  417:  endif
  418:  rdrop ;
  419:  
  420: : single-type ( -- xt1 xt2 n1 n2 )
  421:  ['] fetch-single ['] store-single 1 0 ;
  422: 
  423: : double-type ( -- xt1 xt2 n1 n2 )
  424:  ['] fetch-double ['] store-double 2 0 ;
  425: 
  426: : float-type ( -- xt1 xt2 n1 n2 )
  427:  ['] fetch-float ['] store-float 0 1 ;
  428: 
  429: : s, ( addr u -- )
  430: \ allocate a string
  431:  here swap dup allot move ;
  432: 
  433: : starts-with ( addr u xt1 xt2 n1 n2 "prefix" -- )
  434: \ describes a type
  435: \ addr u specifies the C type name
  436: \ n1 is the size of the type on the data stack
  437: \ n2 is the size of the type on the FP stack
  438: \ stack effect entries of the type start with prefix
  439:  >r >r >r >r
  440:  dup >r here >r s,
  441:  create
  442:  r> r> 2,
  443:  r> r> r> , r> , swap , , ;
  444: 
  445: wordlist constant types
  446: get-current
  447: types set-current
  448: 
  449: s" Bool"	single-type starts-with f
  450: s" Char"	single-type starts-with c
  451: s" Cell"	single-type starts-with n
  452: s" Cell"	single-type starts-with w
  453: s" UCell"	single-type starts-with u
  454: s" DCell"	double-type starts-with d
  455: s" UDCell"	double-type starts-with ud
  456: s" Float"	float-type  starts-with r
  457: s" Cell *"	single-type starts-with a_
  458: s" Char *"	single-type starts-with c_
  459: s" Float *"	single-type starts-with f_
  460: s" DFloat *"	single-type starts-with df_
  461: s" SFloat *"	single-type starts-with sf_
  462: s" Xt"		single-type starts-with xt
  463: s" WID"		single-type starts-with wid
  464: s" F83Name *"	single-type starts-with f83name
  465: 
  466: set-current
  467: 
  468: : get-type ( addr1 u1 -- type-descr )
  469: \ get the type of the name in addr1 u1
  470: \ type-descr is a pointer to a type-descriptor
  471:  0 swap ?do
  472:    dup i types search-wordlist
  473:    if \ ok, we have the type ( addr1 xt )
  474:      execute nip
  475:      UNLOOP EXIT
  476:    endif
  477:  -1 s+loop
  478:  \ we did not find a type, abort
  479:  true abort" unknown type prefix" ;
  480: 
  481: : declare ( addr "name" -- )
  482: \ remember that there is a stack item at addr called name
  483:  create , ;
  484: 
  485: : declaration ( item -- )
  486:  dup item-name 2@ items @ search-wordlist
  487:  if \ already declared ( item xt )
  488:    execute @ item-type @ swap item-type !
  489:  else ( addr )
  490:    dup item-name 2@ nextname dup declare ( addr )
  491:    dup >r item-name 2@ 2dup get-type ( addr1 u type-descr )
  492:    dup r> item-type ! ( addr1 u type-descr )
  493:    type-c-name 2@ type space type ." ;" cr
  494:  endif ;
  495: 
  496: : declaration-list ( addr1 addr2 -- )
  497:  swap ?do
  498:   i declaration
  499:  item-descr +loop ;
  500: 
  501: : fetch ( addr -- )
  502:  dup item-type @ type-fetch-handler execute ;
  503: 
  504: : declarations ( -- )
  505:  wordlist dup items ! set-current
  506:  effect-in effect-in-end @ declaration-list
  507:  effect-out effect-out-end @ declaration-list ;
  508: 
  509: \ offset computation
  510: \ the leftmost (i.e. deepest) item has offset 0
  511: \ the rightmost item has the highest offset
  512: 
  513: : compute-offset ( n1 n2 item -- n3 n4 )
  514: \ n1, n3 are data-stack-offsets
  515: \ n2, n4 are the fp-stack-offsets
  516:  >r
  517:  swap dup r@ item-d-offset !
  518:  r@ item-type @ type-d-size +
  519:  swap dup r@ item-f-offset !
  520:  r@ item-type @ type-f-size +
  521:  rdrop ;
  522: 
  523: : compute-list ( addr1 addr2 -- n1 n2 )
  524: \ n1, n2 are the final offsets
  525:  0 0 2swap swap ?do
  526:   i compute-offset
  527:  item-descr +loop ;
  528: 
  529: : compute-offsets ( -- )
  530:  effect-in effect-in-end @ compute-list effect-in-size 2!
  531:  effect-out effect-out-end @ compute-list effect-out-size 2! ;
  532: 
  533: : flush-tos ( -- )
  534:  effect-in-size 2@ effect-out-size 2@
  535:  0<> rot 0= and
  536:  if
  537:    ." IF_FTOS(fp[0] = FTOS);" cr
  538:  endif
  539:  0<> swap 0= and
  540:  if
  541:    ." IF_TOS(sp[0] = TOS);" cr
  542:  endif ;
  543: 
  544: : fill-tos ( -- )
  545:  effect-in-size 2@ effect-out-size 2@
  546:  0= rot 0<> and
  547:  if
  548:    ." IF_FTOS(FTOS = fp[0]);" cr
  549:  endif
  550:  0= swap 0<> and
  551:  if
  552:    ." IF_TOS(TOS = sp[0]);" cr
  553:  endif ;
  554: 
  555: : fetches ( -- )
  556:  effect-in-end @ effect-in ?do
  557:    i fetch
  558:  item-descr +loop ; 
  559: 
  560: : stack-pointer-updates ( -- )
  561: \ we need not check if an update is a noop; gcc does this for us
  562:  effect-in-size 2@
  563:  effect-out-size 2@
  564:  rot swap - ( d-in d-out f-diff )
  565:  rot rot - ( f-diff d-diff )
  566:  ?dup IF  ." sp += " 0 .r ." ;" cr  THEN
  567:  ?dup IF  ." fp += " 0 .r ." ;" cr  THEN ;
  568: 
  569: : store ( item -- )
  570: \ f is true if the item should be stored
  571: \ f is false if the store is probably not necessary
  572:  dup item-type @ type-store-handler execute ;
  573: 
  574: : stores ( -- )
  575:  effect-out-end @ effect-out ?do
  576:    i store
  577:  item-descr +loop ; 
  578: 
  579: : .stack-list ( start end -- )
  580:  swap ?do
  581:    i item-name 2@ type space
  582:  item-descr +loop ; 
  583: 
  584: : output-c ( -- )
  585:  ." I_" c-name 2@ type ." :	/* " forth-name 2@ type ."  ( " stack-string 2@ type ."  ) */" cr
  586:  ." /* " doc 2@ type ."  */" cr
  587:  ." NAME(" [char] " emit forth-name 2@ type [char] " emit ." )" cr \ debugging
  588:  ." {" cr
  589:  ." DEF_CA" cr
  590:  declarations
  591:  compute-offsets \ for everything else
  592:  ." NEXT_P0;" cr
  593:  flush-tos
  594:  fetches
  595:  stack-pointer-updates
  596:  ." {" cr
  597:  ." #line " c-line @ . [char] " emit c-filename 2@ type [char] " emit cr
  598:  c-code 2@ type
  599:  ." }" cr
  600:  ." NEXT_P1;" cr
  601:  stores
  602:  fill-tos
  603:  ." NEXT_P2;" cr
  604:  ." }" cr
  605:  cr
  606: ;
  607: 
  608: : output-label ( -- )
  609:  ." &&I_" c-name 2@ type ." ," cr ;
  610: 
  611: : output-alias ( -- )  flush-comment on
  612:  ?flush-comment
  613:  primitive-number @ . ." alias " forth-name 2@ type cr
  614:  -1 primitive-number +! ;
  615: 
  616: : output-forth ( -- )  flush-comment on
  617:  ?flush-comment
  618:  forth-code @ 0=
  619:  IF    	\ output-alias
  620: 	\ this is bad for ec: an alias is compiled if tho word does not exist!
  621: 	\ JAW
  622:  ELSE  ." : " forth-name 2@ type ."   ( "
  623:        effect-in effect-in-end @ .stack-list ." -- "
  624:        effect-out effect-out-end @ .stack-list ." )" cr
  625:        forth-code 2@ type cr
  626:        -1 primitive-number +!
  627:  THEN ;
  628: 
  629: : output-tag-file ( -- )
  630:     name-filename 2@ last-name-filename 2@ compare if
  631: 	name-filename 2@ last-name-filename 2!
  632: 	#ff emit cr
  633: 	name-filename 2@ type
  634: 	." ,0" cr
  635:     endif ;
  636: 
  637: : output-tag ( -- )
  638:     output-tag-file
  639:     forth-name 2@ 1+ type
  640:     127 emit
  641:     space forth-name 2@ type space
  642:     1 emit
  643:     name-line @ 0 .r
  644:     ." ,0" cr ;
  645: 
  646: [IFDEF] documentation
  647: : register-doc ( -- )
  648:     get-current documentation set-current
  649:     forth-name 2@ nextname create
  650:     forth-name 2@ 2,
  651:     stack-string 2@ condition-stack-effect 2,
  652:     wordset 2@ 2,
  653:     c-name 2@ condition-pronounciation 2,
  654:     doc 2@ 2,
  655:     set-current ;
  656: [THEN]
  657: 
  658: : process-file ( addr u xt -- )
  659:     >r
  660:     2dup filename 2!
  661:     r/o open-file abort" cannot open file"
  662:     warnings @ if
  663: 	." ------------ CUT HERE -------------" cr  endif
  664:     r> primfilter ;
  665: 

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