File:  [gforth] / gforth / prims2x.fs
Revision 1.49: download - view: text, annotated - select for diffs
Fri Nov 10 10:04:20 2000 UTC (18 years, 11 months ago) by anton
Branches: MAIN
CVS tags: HEAD
rewrote large parts of prims2x.fs to become more flexible (not restricted to
  2 stacks, factored out common code for the stacks, etc.).
Changes in other files to go with the prims2x.fs changes

    1: \ converts primitives to, e.g., C code 
    2: 
    3: \ Copyright (C) 1995,1996,1997,1998,2000 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., 59 Temple Place, Suite 330, Boston, MA 02111, 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: [IFUNDEF] vocabulary	\ we are executed just with kernel image
   46: 			\ load the rest that is needed
   47: 			\ (require fails because this file is needed from a
   48: 			\ different directory with the wordlibraries)
   49: include ./search.fs			
   50: include ./extend.fs
   51: [THEN]
   52: 
   53: [IFUNDEF] environment?
   54: include ./environ.fs
   55: [THEN]
   56: 
   57: : struct% struct ; \ struct is redefined in gray
   58: 
   59: include ./gray.fs
   60: 
   61: 100 constant max-effect \ number of things on one side of a stack effect
   62: 255 constant maxchar
   63: maxchar 1+ constant eof-char
   64: #tab constant tab-char
   65: #lf constant nl-char
   66: 
   67: variable rawinput \ pointer to next character to be scanned
   68: variable endrawinput \ pointer to the end of the input (the char after the last)
   69: variable cookedinput \ pointer to the next char to be parsed
   70: variable line \ line number of char pointed to by input
   71: 1 line !
   72: 2variable filename \ filename of original input file
   73: 0 0 filename 2!
   74: 2variable f-comment
   75: 0 0 f-comment 2!
   76: variable skipsynclines \ are sync lines ("#line ...") invisible to the parser?
   77: skipsynclines on 
   78: 
   79: : start ( -- addr )
   80:  cookedinput @ ;
   81: 
   82: : end ( addr -- addr u )
   83:  cookedinput @ over - ;
   84: 
   85: variable output \ xt ( -- ) of output word
   86: 
   87: : printprim ( -- )
   88:  output @ execute ;
   89: 
   90: \ stack types
   91: 
   92: struct%
   93:     cell% 2* field stack-pointer \ stackpointer name
   94:     cell% 2* field stack-cast \ cast string for assignments to stack elements
   95:     cell%    field stack-in  \ number of stack items in effect in
   96:     cell%    field stack-out \ number of stack items in effect out
   97: end-struct stack%
   98: 
   99: : make-stack ( addr-ptr u1 addr-cast u2 "stack-name" -- )
  100:     create stack% %allot >r
  101:     save-mem r@ stack-cast 2!
  102:     save-mem r> stack-pointer 2! ;
  103: 
  104: s" sp" save-mem s" (Cell)" make-stack data-stack 
  105: s" fp" save-mem s" "       make-stack fp-stack
  106: \ !! initialize stack-in and stack-out
  107: 
  108: \ stack items
  109: 
  110: struct%
  111:  cell% 2* field item-name   \ name, excluding stack prefixes
  112:  cell%    field item-stack  \ descriptor for the stack used, 0 is default
  113:  cell%    field item-type   \ descriptor for the item type
  114:  cell%    field item-offset \ offset in stack items, 0 for the deepest element
  115: end-struct item%
  116: 
  117: : init-item ( addr u addr1 -- )
  118:     \ initialize item at addr1 with name addr u
  119:     \ !! remove stack prefix
  120:     dup item% %size erase
  121:     item-name 2! ;
  122: 
  123: \ various variables for storing stuff of one primitive
  124: 
  125: 2variable forth-name
  126: 2variable wordset
  127: 2variable c-name
  128: 2variable doc
  129: 2variable c-code
  130: 2variable forth-code
  131: 2variable stack-string
  132: create effect-in  max-effect item% %size * allot
  133: create effect-out max-effect item% %size * allot
  134: variable effect-in-end ( pointer )
  135: variable effect-out-end ( pointer )
  136: variable c-line
  137: 2variable c-filename
  138: variable name-line
  139: 2variable name-filename
  140: 2variable last-name-filename
  141: 
  142: variable primitive-number -10 primitive-number !
  143: Variable function-number 0 function-number !
  144: 
  145: \ for several reasons stack items of a word are stored in a wordlist
  146: \ since neither forget nor marker are implemented yet, we make a new
  147: \ wordlist for every word and store it in the variable items
  148: variable items
  149: 
  150: \ a few more set ops
  151: 
  152: : bit-equivalent ( w1 w2 -- w3 )
  153:  xor invert ;
  154: 
  155: : complement ( set1 -- set2 )
  156:  empty ['] bit-equivalent binary-set-operation ;
  157: 
  158: \ the parser
  159: 
  160: eof-char max-member \ the whole character set + EOF
  161: 
  162: : getinput ( -- n )
  163:  rawinput @ endrawinput @ =
  164:  if
  165:    eof-char
  166:  else
  167:    cookedinput @ c@
  168:  endif ;
  169: 
  170: :noname ( n -- )
  171:  dup bl > if
  172:   emit space
  173:  else
  174:   .
  175:  endif ;
  176: print-token !
  177: 
  178: : testchar? ( set -- f )
  179:  getinput member? ;
  180: ' testchar? test-vector !
  181: 
  182: : checksyncline ( -- )
  183:     \ when input points to a newline, check if the next line is a
  184:     \ sync line.  If it is, perform the appropriate actions.
  185:     rawinput @ >r
  186:     s" #line " r@ over compare 0<> if
  187: 	rdrop 1 line +! EXIT
  188:     endif
  189:     0. r> 6 chars + 20 >number drop >r drop line ! r> ( c-addr )
  190:     dup c@ bl = if
  191: 	char+ dup c@ [char] " <> abort" sync line syntax"
  192: 	char+ dup 100 [char] " scan drop swap 2dup - save-mem filename 2!
  193: 	char+
  194:     endif
  195:     dup c@ nl-char <> abort" sync line syntax"
  196:     skipsynclines @ if
  197: 	dup char+ rawinput !
  198: 	rawinput @ c@ cookedinput @ c!
  199:     endif
  200:     drop ;
  201: 
  202: : ?nextchar ( f -- )
  203:     ?not? if
  204: 	filename 2@ type ." :" line @ 0 .r ." : syntax error, wrong char:"
  205: 	getinput . cr
  206: 	rawinput @ endrawinput @ over - 100 min type cr
  207: 	abort
  208:     endif
  209:     rawinput @ endrawinput @ <> if
  210: 	rawinput @ c@
  211: 	1 chars rawinput +!
  212: 	1 chars cookedinput +!
  213: 	nl-char = if
  214: 	    checksyncline
  215: 	endif
  216: 	rawinput @ c@ cookedinput @ c!
  217:     endif ;
  218: 
  219: : charclass ( set "name" -- )
  220:  ['] ?nextchar terminal ;
  221: 
  222: : .. ( c1 c2 -- set )
  223:  ( creates a set that includes the characters c, c1<=c<=c2 )
  224:  empty copy-set
  225:  swap 1+ rot do
  226:   i over add-member
  227:  loop ;
  228: 
  229: : ` ( -- terminal ) ( use: ` c )
  230:  ( creates anonymous terminal for the character c )
  231:  char singleton ['] ?nextchar make-terminal ;
  232: 
  233: char a char z ..  char A char Z ..  union char _ singleton union  charclass letter
  234: char 0 char 9 ..					charclass digit
  235: bl singleton tab-char over add-member			charclass white
  236: nl-char singleton eof-char over add-member complement	charclass nonl
  237: nl-char singleton eof-char over add-member
  238:     char : over add-member complement                   charclass nocolonnl
  239: bl 1+ maxchar .. char \ singleton complement intersection
  240:                                                         charclass nowhitebq
  241: bl 1+ maxchar ..                                        charclass nowhite
  242: char " singleton eof-char over add-member complement	charclass noquote
  243: nl-char singleton					charclass nl
  244: eof-char singleton					charclass eof
  245: 
  246: 
  247: (( letter (( letter || digit )) **
  248: )) <- c-name ( -- )
  249: 
  250: (( nowhitebq nowhite ** ))
  251: <- name ( -- )
  252: 
  253: Variable forth-flag
  254: Variable c-flag
  255: 
  256: (( (( ` f || ` F )) {{ start }} nonl ** 
  257:    {{ end forth-flag @ IF type cr ELSE 2drop THEN }}
  258: )) <- forth-comment ( -- )
  259: 
  260: (( (( ` c || ` C )) {{ start }} nonl ** 
  261:    {{ end c-flag @ IF type cr ELSE 2drop THEN }}
  262: )) <- c-comment ( -- )
  263: 
  264: (( ` - nonl ** {{ 
  265: 	forth-flag @ IF ." [ELSE]" cr THEN
  266: 	c-flag @ IF ." #else" cr THEN }}
  267: )) <- else-comment
  268: 
  269: (( ` + {{ start }} nonl ** {{ end
  270: 	dup
  271: 	IF	c-flag @
  272: 		IF    ." #ifdef HAS_" bounds ?DO  I c@ toupper emit  LOOP cr
  273: 		THEN
  274: 		forth-flag @
  275: 		IF  ." has? " type ."  [IF]"  cr THEN
  276: 	ELSE	2drop
  277: 	    c-flag @      IF  ." #endif"  cr THEN
  278: 	    forth-flag @  IF  ." [THEN]"  cr THEN
  279: 	THEN }}
  280: )) <- if-comment
  281: 
  282: (( (( forth-comment || c-comment || else-comment || if-comment )) ?? nonl ** )) <- comment-body
  283: 
  284: (( ` \ comment-body nl )) <- comment ( -- )
  285: 
  286: (( {{ effect-in }} (( {{ start }} c-name {{ end 2 pick init-item item% %size + }} white ** )) ** {{ effect-in-end ! }}
  287:    ` - ` - white **
  288:    {{ effect-out }} (( {{ start }} c-name {{ end 2 pick init-item item% %size + }} white ** )) ** {{ effect-out-end ! }}
  289: )) <- stack-effect ( -- )
  290: 
  291: (( {{ s" " doc 2! s" " forth-code 2! }}
  292:    (( {{ line @ name-line ! filename 2@ name-filename 2! }}
  293:       {{ start }} name {{ end 2dup forth-name 2! c-name 2! }}  white ++
  294:       ` ( white ** {{ start }} stack-effect {{ end stack-string 2! }} ` ) white **
  295:         {{ start }} name {{ end wordset 2! }} white **
  296:         (( {{ start }}  c-name {{ end c-name 2! }} )) ??  nl
  297:    ))
  298:    (( ` " ` "  {{ start }} (( noquote ++ ` " )) ++ {{ end 1- doc 2! }} ` " nl )) ??
  299:    {{ skipsynclines off line @ c-line ! filename 2@ c-filename 2! start }} (( nocolonnl nonl **  nl )) ** {{ end c-code 2! skipsynclines on }}
  300:    (( ` :  nl
  301:       {{ start }} (( nonl ++  nl )) ++ {{ end forth-code 2! }}
  302:    )) ?? {{ printprim }}
  303:    (( nl || eof ))
  304: )) <- primitive ( -- )
  305: 
  306: (( (( comment || primitive || nl )) ** eof ))
  307: parser primitives2something
  308: warnings @ [IF]
  309: .( parser generated ok ) cr
  310: [THEN]
  311: 
  312: : primfilter ( file-id xt -- )
  313: \ fileid is for the input file, xt ( -- ) is for the output word
  314:  output !
  315:  here dup rawinput ! cookedinput !
  316:  here unused rot read-file throw
  317:  dup here + endrawinput !
  318:  allot
  319:  align
  320:  checksyncline
  321: \ begin
  322: \     getinput dup eof-char = ?EXIT emit true ?nextchar
  323: \ again ;
  324:  primitives2something ;
  325: 
  326: \ types
  327: 
  328: struct%
  329:     cell% 2* field type-c-name
  330:     cell%    field type-stack \ default stack
  331:     cell%    field type-size  \ size of type in stack items
  332:     cell%    field type-fetch \ xt of fetch code generator ( item -- )
  333:     cell%    field type-store \ xt of store code generator ( item -- )
  334: end-struct type%
  335: 
  336: : stack-access ( n stack -- )
  337:     \ print a stack access at index n of stack
  338:     stack-pointer 2@ type
  339:     dup
  340:     if
  341: 	." [" 0 .r ." ]"
  342:     else
  343: 	drop ." TOS"
  344:     endif ;
  345: 
  346: : item-in-index ( item -- n )
  347:     \ n is the index of item (in the in-effect)
  348:     >r r@ item-stack @ stack-in @ r> item-offset @ - 1- ;
  349: 
  350: : fetch-single ( item -- )
  351:  \ fetch a single stack item from its stack
  352:  >r
  353:  r@ item-name 2@ type
  354:  ."  = (" 
  355:  r@ item-type @ type-c-name 2@ type ." ) "
  356:  r@ item-in-index r@ item-stack @ stack-access
  357:  ." ;" cr
  358:  rdrop ; 
  359: 
  360: : fetch-double ( item -- )
  361:  \ fetch a double stack item from its stack
  362:  >r
  363:  ." FETCH_DCELL("
  364:  r@ item-name 2@ type ." , "
  365:  r@ item-in-index r@ item-stack @ 2dup stack-access
  366:  ." , "                      -1 under+ stack-access
  367:  ." );" cr
  368:  rdrop ;
  369: 
  370: : same-as-in? ( item -- f )
  371:  \ f is true iff the offset and stack of item is the same as on input
  372:  >r
  373:  r@ item-name 2@ items @ search-wordlist 0=
  374:  abort" bug"
  375:  execute @
  376:  dup r@ =
  377:  if \ item first appeared in output
  378:    drop false
  379:  else
  380:    dup  item-stack  @ r@ item-stack  @ = 
  381:    swap item-offset @ r@ item-offset @ = and
  382:  endif
  383:  rdrop ;
  384: 
  385: : item-out-index ( item -- n )
  386:     \ n is the index of item (in the in-effect)
  387:     >r r@ item-stack @ stack-out @ r> item-offset @ - 1- ;
  388: 
  389: : really-store-single ( item -- )
  390:  >r
  391:  r@ item-out-index r@ item-stack @ stack-access ."  = "
  392:  r@ item-stack @ stack-cast 2@ type
  393:  r@ item-name 2@ type ." ;"
  394:  rdrop ;
  395: 
  396: : store-single ( item -- )
  397:  >r
  398:  r@ same-as-in?
  399:  if
  400:    r@ item-in-index 0= r@ item-out-index 0= xor
  401:    if
  402:        ." IF_" r@ item-stack @ stack-pointer 2@ type
  403:        ." TOS(" r@ really-store-single ." );" cr
  404:    endif
  405:  else
  406:    r@ really-store-single cr
  407:  endif
  408:  rdrop ;
  409: 
  410: : store-double ( item -- )
  411: \ !! store optimization is not performed, because it is not yet needed
  412:  >r
  413:  ." STORE_DCELL(" r@ item-name 2@ type ." , "
  414:  r@ item-out-index r@ item-stack @ 2dup stack-access
  415:  ." , "                       -1 under+ stack-access
  416:  ." );" cr
  417:  rdrop ;
  418: 
  419: 
  420: : single-type ( -- xt1 xt2 n stack )
  421:  ['] fetch-single ['] store-single 1 data-stack ;
  422: 
  423: : double-type ( -- xt1 xt2 n stack )
  424:  ['] fetch-double ['] store-double 2 data-stack ;
  425: 
  426: : float-type ( -- xt1 xt2 n stack )
  427:  ['] fetch-single ['] store-single 1 fp-stack ;
  428: 
  429: : s, ( addr u -- )
  430: \ allocate a string
  431:  here swap dup allot move ;
  432: 
  433: : starts-with { addr u xt1 xt2 n stack -- } ( "prefix" -- )
  434:     \ describes a type
  435:     \ addr u specifies the C type name
  436:     \ stack effect entries of the type start with prefix
  437:     create type% %allot >r
  438:     addr u save-mem r@ type-c-name 2!
  439:     xt1   r@ type-fetch !
  440:     xt2   r@ type-store !
  441:     n     r@ type-size !
  442:     stack r@ type-stack !
  443:     rdrop ;
  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" struct 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 @ 2dup item-type @ swap item-type !
  489:      item-stack @ swap item-stack ! \ !! does not generalize to stack prefixes
  490:  else ( addr )
  491:    dup item-name 2@ nextname dup declare ( addr )
  492:    dup >r item-name 2@ 2dup get-type ( addr1 u type-descr )
  493:    dup type-stack @ r@ item-stack ! \ !! only if item-stack @ 0=
  494:    dup r> item-type ! ( addr1 u type-descr )
  495:    type-c-name 2@ type space type ." ;" cr
  496:  endif ;
  497: 
  498: : declaration-list ( addr1 addr2 -- )
  499:  swap ?do
  500:   i declaration
  501:  item% %size +loop ;
  502: 
  503: : declarations ( -- )
  504:  wordlist dup items ! set-current
  505:  effect-in effect-in-end @ declaration-list
  506:  effect-out effect-out-end @ declaration-list ;
  507: 
  508: \ offset computation
  509: \ the leftmost (i.e. deepest) item has offset 0
  510: \ the rightmost item has the highest offset
  511: 
  512: : compute-offset { item xt -- }
  513:     \ xt specifies in/out; update stack-in/out and set item-offset
  514:     item item-type @ type-size @
  515:     item item-stack @ xt execute dup @ >r +!
  516:     r> item item-offset ! ;
  517: 
  518: : compute-list ( addr1 addr2 xt -- )
  519:     { xt }
  520:     swap u+do
  521: 	i xt compute-offset
  522:     item% %size +loop ;
  523: 
  524: : clear-stack { -- }
  525:     dup stack-in off stack-out off ;
  526: 
  527: 
  528: : compute-offsets ( -- )
  529:     data-stack clear-stack  fp-stack clear-stack
  530:     effect-in  effect-in-end  @ ['] stack-in  compute-list
  531:     effect-out effect-out-end @ ['] stack-out compute-list ;
  532: 
  533: : flush-a-tos { stack -- }
  534:     stack stack-out @ 0<> stack stack-in @ 0= and
  535:     if
  536: 	." IF_" stack stack-pointer 2@ 2dup type ." TOS("
  537: 	2dup type ." [0] = " type ." TOS);" cr
  538:     endif ;
  539: 
  540: : flush-tos ( -- )
  541:     data-stack flush-a-tos
  542:     fp-stack   flush-a-tos ;
  543: 
  544: : fill-a-tos { stack -- }
  545:     stack stack-out @ 0= stack stack-in @ 0<> and
  546:     if
  547: 	." IF_" stack stack-pointer 2@ 2dup type ." TOS("
  548: 	2dup type ." TOS = " type ." [0]);" cr
  549:     endif ;
  550: 
  551: : fill-tos ( -- )
  552:     fp-stack   fill-a-tos
  553:     data-stack fill-a-tos ;
  554: 
  555: : fetch ( addr -- )
  556:  dup item-type @ type-fetch @ execute ;
  557: 
  558: : fetches ( -- )
  559:  effect-in-end @ effect-in ?do
  560:    i fetch
  561:  item% %size +loop ; 
  562: 
  563: : stack-pointer-update { stack -- }
  564:     \ stack grow downwards
  565:     stack stack-in @ stack stack-out @ -
  566:     ?dup-if \ this check is not necessary, gcc would do this for us
  567: 	stack stack-pointer 2@ type ."  += " 0 .r ." ;" cr
  568:     endif ;
  569: 
  570: : stack-pointer-updates ( -- )
  571:     data-stack stack-pointer-update
  572:     fp-stack   stack-pointer-update ;
  573: 
  574: : store ( item -- )
  575: \ f is true if the item should be stored
  576: \ f is false if the store is probably not necessary
  577:  dup item-type @ type-store @ execute ;
  578: 
  579: : stores ( -- )
  580:  effect-out-end @ effect-out ?do
  581:    i store
  582:  item% %size +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: : stack-used? { stack -- f }
  609:     stack stack-in @ stack stack-out @ or 0<> ;
  610: 
  611: : output-funclabel ( -- )
  612:   1 function-number +!
  613:   ." &I_" c-name 2@ type ." ," cr ;
  614: 
  615: : output-forthname ( -- )
  616:   1 function-number +!
  617:   '" emit forth-name 2@ type '" emit ." ," cr ;
  618: 
  619: : output-c-func ( -- )
  620: \ used for word libraries
  621:     1 function-number +!
  622:     ." Cell * I_" c-name 2@ type ." (Cell *SP, Cell **FP)      /* " forth-name 2@ type
  623:     ."  ( " stack-string 2@ type ."  ) */" cr
  624:     ." /* " doc 2@ type ."  */" cr
  625:     ." NAME(" [char] " emit forth-name 2@ type [char] " emit ." )" cr
  626:     \ debugging
  627:     ." {" cr
  628:     declarations
  629:     compute-offsets \ for everything else
  630:     data-stack stack-used? IF ." Cell *sp=SP;" cr THEN
  631:     fp-stack   stack-used? IF ." Cell *fp=*FP;" cr THEN
  632:     flush-tos
  633:     fetches
  634:     stack-pointer-updates
  635:     fp-stack   stack-used? IF ." *FP=fp;" cr THEN
  636:     ." {" cr
  637:     ." #line " c-line @ . [char] " emit c-filename 2@ type [char] " emit cr
  638:     c-code 2@ type
  639:     ." }" cr
  640:     stores
  641:     fill-tos
  642:     ." return (sp);" cr
  643:     ." }" cr
  644:     cr ;
  645: 
  646: : output-label ( -- )  
  647:     ." (Label)&&I_" c-name 2@ type ." ," cr
  648:     -1 primitive-number +! ;
  649: 
  650: : output-alias ( -- ) 
  651:     ( primitive-number @ . ." alias " ) ." Primitive " forth-name 2@ type cr
  652:     -1 primitive-number +! ;
  653: 
  654: : output-forth ( -- )  
  655:     forth-code @ 0=
  656:     IF    	\ output-alias
  657: 	\ this is bad for ec: an alias is compiled if tho word does not exist!
  658: 	\ JAW
  659:     ELSE  ." : " forth-name 2@ type ."   ( "
  660: 	stack-string 2@ type ." )" cr
  661: 	forth-code 2@ type cr
  662: 	-1 primitive-number +!
  663:     THEN ;
  664: 
  665: : output-tag-file ( -- )
  666:     name-filename 2@ last-name-filename 2@ compare if
  667: 	name-filename 2@ last-name-filename 2!
  668: 	#ff emit cr
  669: 	name-filename 2@ type
  670: 	." ,0" cr
  671:     endif ;
  672: 
  673: : output-tag ( -- )
  674:     output-tag-file
  675:     forth-name 2@ 1+ type
  676:     127 emit
  677:     space forth-name 2@ type space
  678:     1 emit
  679:     name-line @ 0 .r
  680:     ." ,0" cr ;
  681: 
  682: [IFDEF] documentation
  683: : register-doc ( -- )
  684:     get-current documentation set-current
  685:     forth-name 2@ nextname create
  686:     forth-name 2@ 2,
  687:     stack-string 2@ condition-stack-effect 2,
  688:     wordset 2@ 2,
  689:     c-name 2@ condition-pronounciation 2,
  690:     doc 2@ 2,
  691:     set-current ;
  692: [THEN]
  693: 
  694: : process-file ( addr u xt -- )
  695:     >r
  696:     2dup filename 2!
  697:     0 function-number !
  698:     r/o open-file abort" cannot open file"
  699:     warnings @ if
  700: 	." ------------ CUT HERE -------------" cr  endif
  701:     r> primfilter ;
  702: 
  703: : process      ( xt -- )
  704:     bl word count rot
  705:     process-file ;

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